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From afb7254de9f03c3efaf4e306dcf5f88e1873fc6b Mon Sep 17 00:00:00 2001
From: Yangbo Lu <yangbo.lu@nxp.com>
Date: Mon, 25 Sep 2017 12:06:25 +0800
Subject: [PATCH] fsl-mc: layerscape support
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
This is a integrated patch for layerscape mc-bus support.
Signed-off-by: Stuart Yoder <stuart.yoder@nxp.com>
Signed-off-by: Bharat Bhushan <Bharat.Bhushan@nxp.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
Signed-off-by: Shiva Kerdel <shiva@exdev.nl>
Signed-off-by: Nipun Gupta <nipun.gupta@nxp.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
---
drivers/staging/fsl-mc/bus/Kconfig | 41 +-
drivers/staging/fsl-mc/bus/Makefile | 10 +-
drivers/staging/fsl-mc/bus/dpbp-cmd.h | 80 ++
drivers/staging/fsl-mc/bus/dpbp.c | 450 +--------
drivers/staging/fsl-mc/bus/dpcon-cmd.h | 85 ++
drivers/staging/fsl-mc/bus/dpcon.c | 317 ++++++
drivers/staging/fsl-mc/bus/dpio/Makefile | 11 +
.../{include/dpcon-cmd.h => bus/dpio/dpio-cmd.h} | 73 +-
drivers/staging/fsl-mc/bus/dpio/dpio-driver.c | 296 ++++++
drivers/staging/fsl-mc/bus/dpio/dpio-driver.txt | 135 +++
drivers/staging/fsl-mc/bus/dpio/dpio-service.c | 693 +++++++++++++
drivers/staging/fsl-mc/bus/dpio/dpio.c | 224 +++++
drivers/staging/fsl-mc/bus/dpio/dpio.h | 109 ++
drivers/staging/fsl-mc/bus/dpio/qbman-portal.c | 1049 ++++++++++++++++++++
drivers/staging/fsl-mc/bus/dpio/qbman-portal.h | 662 ++++++++++++
drivers/staging/fsl-mc/bus/dpio/qbman_debug.c | 853 ++++++++++++++++
drivers/staging/fsl-mc/bus/dpio/qbman_debug.h | 136 +++
drivers/staging/fsl-mc/bus/dpio/qbman_private.h | 171 ++++
drivers/staging/fsl-mc/bus/dpmcp-cmd.h | 112 +--
drivers/staging/fsl-mc/bus/dpmcp.c | 374 +------
drivers/staging/fsl-mc/bus/dpmcp.h | 127 +--
drivers/staging/fsl-mc/bus/dpmng-cmd.h | 14 +-
drivers/staging/fsl-mc/bus/dpmng.c | 37 +-
drivers/staging/fsl-mc/bus/dprc-cmd.h | 82 +-
drivers/staging/fsl-mc/bus/dprc-driver.c | 38 +-
drivers/staging/fsl-mc/bus/dprc.c | 629 +-----------
drivers/staging/fsl-mc/bus/fsl-mc-allocator.c | 78 +-
drivers/staging/fsl-mc/bus/fsl-mc-bus.c | 318 +++---
drivers/staging/fsl-mc/bus/fsl-mc-iommu.c | 104 ++
drivers/staging/fsl-mc/bus/fsl-mc-msi.c | 3 +-
drivers/staging/fsl-mc/bus/fsl-mc-private.h | 6 +-
.../staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c | 11 +-
drivers/staging/fsl-mc/bus/mc-io.c | 4 +-
drivers/staging/fsl-mc/bus/mc-ioctl.h | 22 +
drivers/staging/fsl-mc/bus/mc-restool.c | 405 ++++++++
drivers/staging/fsl-mc/bus/mc-sys.c | 14 +-
drivers/staging/fsl-mc/include/dpaa2-fd.h | 706 +++++++++++++
drivers/staging/fsl-mc/include/dpaa2-global.h | 202 ++++
drivers/staging/fsl-mc/include/dpaa2-io.h | 190 ++++
drivers/staging/fsl-mc/include/dpbp-cmd.h | 185 ----
drivers/staging/fsl-mc/include/dpbp.h | 158 +--
drivers/staging/fsl-mc/include/dpcon.h | 115 +++
drivers/staging/fsl-mc/include/dpmng.h | 16 +-
drivers/staging/fsl-mc/include/dpopr.h | 110 ++
drivers/staging/fsl-mc/include/dprc.h | 470 +++------
drivers/staging/fsl-mc/include/mc-bus.h | 7 +-
drivers/staging/fsl-mc/include/mc-cmd.h | 44 +-
drivers/staging/fsl-mc/include/mc-sys.h | 3 +-
drivers/staging/fsl-mc/include/mc.h | 17 +-
49 files changed, 7384 insertions(+), 2612 deletions(-)
create mode 100644 drivers/staging/fsl-mc/bus/dpbp-cmd.h
create mode 100644 drivers/staging/fsl-mc/bus/dpcon-cmd.h
create mode 100644 drivers/staging/fsl-mc/bus/dpcon.c
create mode 100644 drivers/staging/fsl-mc/bus/dpio/Makefile
rename drivers/staging/fsl-mc/{include/dpcon-cmd.h => bus/dpio/dpio-cmd.h} (64%)
create mode 100644 drivers/staging/fsl-mc/bus/dpio/dpio-driver.c
create mode 100644 drivers/staging/fsl-mc/bus/dpio/dpio-driver.txt
create mode 100644 drivers/staging/fsl-mc/bus/dpio/dpio-service.c
create mode 100644 drivers/staging/fsl-mc/bus/dpio/dpio.c
create mode 100644 drivers/staging/fsl-mc/bus/dpio/dpio.h
create mode 100644 drivers/staging/fsl-mc/bus/dpio/qbman-portal.c
create mode 100644 drivers/staging/fsl-mc/bus/dpio/qbman-portal.h
create mode 100644 drivers/staging/fsl-mc/bus/dpio/qbman_debug.c
create mode 100644 drivers/staging/fsl-mc/bus/dpio/qbman_debug.h
create mode 100644 drivers/staging/fsl-mc/bus/dpio/qbman_private.h
create mode 100644 drivers/staging/fsl-mc/bus/fsl-mc-iommu.c
create mode 100644 drivers/staging/fsl-mc/bus/mc-ioctl.h
create mode 100644 drivers/staging/fsl-mc/bus/mc-restool.c
create mode 100644 drivers/staging/fsl-mc/include/dpaa2-fd.h
create mode 100644 drivers/staging/fsl-mc/include/dpaa2-global.h
create mode 100644 drivers/staging/fsl-mc/include/dpaa2-io.h
delete mode 100644 drivers/staging/fsl-mc/include/dpbp-cmd.h
create mode 100644 drivers/staging/fsl-mc/include/dpcon.h
create mode 100644 drivers/staging/fsl-mc/include/dpopr.h
--- a/drivers/staging/fsl-mc/bus/Kconfig
+++ b/drivers/staging/fsl-mc/bus/Kconfig
@@ -1,25 +1,40 @@
#
-# Freescale Management Complex (MC) bus drivers
+# DPAA2 fsl-mc bus
#
-# Copyright (C) 2014 Freescale Semiconductor, Inc.
+# Copyright (C) 2014-2016 Freescale Semiconductor, Inc.
#
# This file is released under the GPLv2
#
config FSL_MC_BUS
- bool "Freescale Management Complex (MC) bus driver"
- depends on OF && ARM64
+ bool "QorIQ DPAA2 fsl-mc bus driver"
+ depends on OF && ARCH_LAYERSCAPE
select GENERIC_MSI_IRQ_DOMAIN
help
- Driver to enable the bus infrastructure for the Freescale
- QorIQ Management Complex (fsl-mc). The fsl-mc is a hardware
- module of the QorIQ LS2 SoCs, that does resource management
- for hardware building-blocks in the SoC that can be used
- to dynamically create networking hardware objects such as
- network interfaces (NICs), crypto accelerator instances,
- or L2 switches.
+ Driver to enable the bus infrastructure for the QorIQ DPAA2
+ architecture. The fsl-mc bus driver handles discovery of
+ DPAA2 objects (which are represented as Linux devices) and
+ binding objects to drivers.
- Only enable this option when building the kernel for
- Freescale QorQIQ LS2xxxx SoCs.
+config FSL_MC_DPIO
+ tristate "QorIQ DPAA2 DPIO driver"
+ depends on FSL_MC_BUS
+ help
+ Driver for the DPAA2 DPIO object. A DPIO provides queue and
+ buffer management facilities for software to interact with
+ other DPAA2 objects. This driver does not expose the DPIO
+ objects individually, but groups them under a service layer
+ API.
+config FSL_QBMAN_DEBUG
+ tristate "Freescale QBMAN Debug APIs"
+ depends on FSL_MC_DPIO
+ help
+ QBMan debug assistant APIs.
+config FSL_MC_RESTOOL
+ tristate "Freescale Management Complex (MC) restool driver"
+ depends on FSL_MC_BUS
+ help
+ Driver that provides kernel support for the Freescale Management
+ Complex resource manager user-space tool.
--- a/drivers/staging/fsl-mc/bus/Makefile
+++ b/drivers/staging/fsl-mc/bus/Makefile
@@ -17,4 +17,12 @@ mc-bus-driver-objs := fsl-mc-bus.o \
fsl-mc-msi.o \
irq-gic-v3-its-fsl-mc-msi.o \
dpmcp.o \
- dpbp.o
+ dpbp.o \
+ dpcon.o \
+ fsl-mc-iommu.o
+
+# MC DPIO driver
+obj-$(CONFIG_FSL_MC_DPIO) += dpio/
+
+# MC restool kernel support
+obj-$(CONFIG_FSL_MC_RESTOOL) += mc-restool.o
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/dpbp-cmd.h
@@ -0,0 +1,80 @@
+/*
+ * Copyright 2013-2016 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef _FSL_DPBP_CMD_H
+#define _FSL_DPBP_CMD_H
+
+/* DPBP Version */
+#define DPBP_VER_MAJOR 3
+#define DPBP_VER_MINOR 2
+
+/* Command versioning */
+#define DPBP_CMD_BASE_VERSION 1
+#define DPBP_CMD_ID_OFFSET 4
+
+#define DPBP_CMD(id) ((id << DPBP_CMD_ID_OFFSET) | DPBP_CMD_BASE_VERSION)
+
+/* Command IDs */
+#define DPBP_CMDID_CLOSE DPBP_CMD(0x800)
+#define DPBP_CMDID_OPEN DPBP_CMD(0x804)
+#define DPBP_CMDID_GET_API_VERSION DPBP_CMD(0xa04)
+
+#define DPBP_CMDID_ENABLE DPBP_CMD(0x002)
+#define DPBP_CMDID_DISABLE DPBP_CMD(0x003)
+#define DPBP_CMDID_GET_ATTR DPBP_CMD(0x004)
+#define DPBP_CMDID_RESET DPBP_CMD(0x005)
+#define DPBP_CMDID_IS_ENABLED DPBP_CMD(0x006)
+
+struct dpbp_cmd_open {
+ __le32 dpbp_id;
+};
+
+struct dpbp_cmd_destroy {
+ __le32 object_id;
+};
+
+#define DPBP_ENABLE 0x1
+
+struct dpbp_rsp_is_enabled {
+ u8 enabled;
+};
+
+struct dpbp_rsp_get_attributes {
+ /* response word 0 */
+ __le16 pad;
+ __le16 bpid;
+ __le32 id;
+ /* response word 1 */
+ __le16 version_major;
+ __le16 version_minor;
+};
+
+#endif /* _FSL_DPBP_CMD_H */
--- a/drivers/staging/fsl-mc/bus/dpbp.c
+++ b/drivers/staging/fsl-mc/bus/dpbp.c
@@ -1,4 +1,5 @@
-/* Copyright 2013-2016 Freescale Semiconductor Inc.
+/*
+ * Copyright 2013-2016 Freescale Semiconductor Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@@ -11,7 +12,6 @@
* names of any contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
- *
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") as published by the Free Software
* Foundation, either version 2 of that License or (at your option) any
@@ -32,7 +32,8 @@
#include "../include/mc-sys.h"
#include "../include/mc-cmd.h"
#include "../include/dpbp.h"
-#include "../include/dpbp-cmd.h"
+
+#include "dpbp-cmd.h"
/**
* dpbp_open() - Open a control session for the specified object.
@@ -105,74 +106,6 @@ int dpbp_close(struct fsl_mc_io *mc_io,
EXPORT_SYMBOL(dpbp_close);
/**
- * dpbp_create() - Create the DPBP object.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @cfg: Configuration structure
- * @token: Returned token; use in subsequent API calls
- *
- * Create the DPBP object, allocate required resources and
- * perform required initialization.
- *
- * The object can be created either by declaring it in the
- * DPL file, or by calling this function.
- * This function returns a unique authentication token,
- * associated with the specific object ID and the specific MC
- * portal; this token must be used in all subsequent calls to
- * this specific object. For objects that are created using the
- * DPL file, call dpbp_open function to get an authentication
- * token first.
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpbp_create(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- const struct dpbp_cfg *cfg,
- u16 *token)
-{
- struct mc_command cmd = { 0 };
- int err;
-
- (void)(cfg); /* unused */
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPBP_CMDID_CREATE,
- cmd_flags, 0);
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- *token = mc_cmd_hdr_read_token(&cmd);
-
- return 0;
-}
-
-/**
- * dpbp_destroy() - Destroy the DPBP object and release all its resources.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPBP object
- *
- * Return: '0' on Success; error code otherwise.
- */
-int dpbp_destroy(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token)
-{
- struct mc_command cmd = { 0 };
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPBP_CMDID_DESTROY,
- cmd_flags, token);
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
* dpbp_enable() - Enable the DPBP.
* @mc_io: Pointer to MC portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
@@ -250,6 +183,7 @@ int dpbp_is_enabled(struct fsl_mc_io *mc
return 0;
}
+EXPORT_SYMBOL(dpbp_is_enabled);
/**
* dpbp_reset() - Reset the DPBP, returns the object to initial state.
@@ -272,310 +206,7 @@ int dpbp_reset(struct fsl_mc_io *mc_io,
/* send command to mc*/
return mc_send_command(mc_io, &cmd);
}
-
-/**
- * dpbp_set_irq() - Set IRQ information for the DPBP to trigger an interrupt.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPBP object
- * @irq_index: Identifies the interrupt index to configure
- * @irq_cfg: IRQ configuration
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpbp_set_irq(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- struct dpbp_irq_cfg *irq_cfg)
-{
- struct mc_command cmd = { 0 };
- struct dpbp_cmd_set_irq *cmd_params;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPBP_CMDID_SET_IRQ,
- cmd_flags, token);
- cmd_params = (struct dpbp_cmd_set_irq *)cmd.params;
- cmd_params->irq_index = irq_index;
- cmd_params->irq_val = cpu_to_le32(irq_cfg->val);
- cmd_params->irq_addr = cpu_to_le64(irq_cfg->addr);
- cmd_params->irq_num = cpu_to_le32(irq_cfg->irq_num);
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpbp_get_irq() - Get IRQ information from the DPBP.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPBP object
- * @irq_index: The interrupt index to configure
- * @type: Interrupt type: 0 represents message interrupt
- * type (both irq_addr and irq_val are valid)
- * @irq_cfg: IRQ attributes
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpbp_get_irq(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- int *type,
- struct dpbp_irq_cfg *irq_cfg)
-{
- struct mc_command cmd = { 0 };
- struct dpbp_cmd_get_irq *cmd_params;
- struct dpbp_rsp_get_irq *rsp_params;
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_IRQ,
- cmd_flags, token);
- cmd_params = (struct dpbp_cmd_get_irq *)cmd.params;
- cmd_params->irq_index = irq_index;
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpbp_rsp_get_irq *)cmd.params;
- irq_cfg->val = le32_to_cpu(rsp_params->irq_val);
- irq_cfg->addr = le64_to_cpu(rsp_params->irq_addr);
- irq_cfg->irq_num = le32_to_cpu(rsp_params->irq_num);
- *type = le32_to_cpu(rsp_params->type);
-
- return 0;
-}
-
-/**
- * dpbp_set_irq_enable() - Set overall interrupt state.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPBP object
- * @irq_index: The interrupt index to configure
- * @en: Interrupt state - enable = 1, disable = 0
- *
- * Allows GPP software to control when interrupts are generated.
- * Each interrupt can have up to 32 causes. The enable/disable control's the
- * overall interrupt state. if the interrupt is disabled no causes will cause
- * an interrupt.
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpbp_set_irq_enable(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u8 en)
-{
- struct mc_command cmd = { 0 };
- struct dpbp_cmd_set_irq_enable *cmd_params;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPBP_CMDID_SET_IRQ_ENABLE,
- cmd_flags, token);
- cmd_params = (struct dpbp_cmd_set_irq_enable *)cmd.params;
- cmd_params->enable = en & DPBP_ENABLE;
- cmd_params->irq_index = irq_index;
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpbp_get_irq_enable() - Get overall interrupt state
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPBP object
- * @irq_index: The interrupt index to configure
- * @en: Returned interrupt state - enable = 1, disable = 0
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpbp_get_irq_enable(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u8 *en)
-{
- struct mc_command cmd = { 0 };
- struct dpbp_cmd_get_irq_enable *cmd_params;
- struct dpbp_rsp_get_irq_enable *rsp_params;
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_IRQ_ENABLE,
- cmd_flags, token);
- cmd_params = (struct dpbp_cmd_get_irq_enable *)cmd.params;
- cmd_params->irq_index = irq_index;
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpbp_rsp_get_irq_enable *)cmd.params;
- *en = rsp_params->enabled & DPBP_ENABLE;
- return 0;
-}
-
-/**
- * dpbp_set_irq_mask() - Set interrupt mask.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPBP object
- * @irq_index: The interrupt index to configure
- * @mask: Event mask to trigger interrupt;
- * each bit:
- * 0 = ignore event
- * 1 = consider event for asserting IRQ
- *
- * Every interrupt can have up to 32 causes and the interrupt model supports
- * masking/unmasking each cause independently
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpbp_set_irq_mask(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u32 mask)
-{
- struct mc_command cmd = { 0 };
- struct dpbp_cmd_set_irq_mask *cmd_params;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPBP_CMDID_SET_IRQ_MASK,
- cmd_flags, token);
- cmd_params = (struct dpbp_cmd_set_irq_mask *)cmd.params;
- cmd_params->mask = cpu_to_le32(mask);
- cmd_params->irq_index = irq_index;
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpbp_get_irq_mask() - Get interrupt mask.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPBP object
- * @irq_index: The interrupt index to configure
- * @mask: Returned event mask to trigger interrupt
- *
- * Every interrupt can have up to 32 causes and the interrupt model supports
- * masking/unmasking each cause independently
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpbp_get_irq_mask(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u32 *mask)
-{
- struct mc_command cmd = { 0 };
- struct dpbp_cmd_get_irq_mask *cmd_params;
- struct dpbp_rsp_get_irq_mask *rsp_params;
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_IRQ_MASK,
- cmd_flags, token);
- cmd_params = (struct dpbp_cmd_get_irq_mask *)cmd.params;
- cmd_params->irq_index = irq_index;
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpbp_rsp_get_irq_mask *)cmd.params;
- *mask = le32_to_cpu(rsp_params->mask);
-
- return 0;
-}
-
-/**
- * dpbp_get_irq_status() - Get the current status of any pending interrupts.
- *
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPBP object
- * @irq_index: The interrupt index to configure
- * @status: Returned interrupts status - one bit per cause:
- * 0 = no interrupt pending
- * 1 = interrupt pending
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpbp_get_irq_status(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u32 *status)
-{
- struct mc_command cmd = { 0 };
- struct dpbp_cmd_get_irq_status *cmd_params;
- struct dpbp_rsp_get_irq_status *rsp_params;
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_IRQ_STATUS,
- cmd_flags, token);
- cmd_params = (struct dpbp_cmd_get_irq_status *)cmd.params;
- cmd_params->status = cpu_to_le32(*status);
- cmd_params->irq_index = irq_index;
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpbp_rsp_get_irq_status *)cmd.params;
- *status = le32_to_cpu(rsp_params->status);
-
- return 0;
-}
-
-/**
- * dpbp_clear_irq_status() - Clear a pending interrupt's status
- *
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPBP object
- * @irq_index: The interrupt index to configure
- * @status: Bits to clear (W1C) - one bit per cause:
- * 0 = don't change
- * 1 = clear status bit
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpbp_clear_irq_status(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u32 status)
-{
- struct mc_command cmd = { 0 };
- struct dpbp_cmd_clear_irq_status *cmd_params;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPBP_CMDID_CLEAR_IRQ_STATUS,
- cmd_flags, token);
- cmd_params = (struct dpbp_cmd_clear_irq_status *)cmd.params;
- cmd_params->status = cpu_to_le32(status);
- cmd_params->irq_index = irq_index;
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
+EXPORT_SYMBOL(dpbp_reset);
/**
* dpbp_get_attributes - Retrieve DPBP attributes.
@@ -609,83 +240,40 @@ int dpbp_get_attributes(struct fsl_mc_io
rsp_params = (struct dpbp_rsp_get_attributes *)cmd.params;
attr->bpid = le16_to_cpu(rsp_params->bpid);
attr->id = le32_to_cpu(rsp_params->id);
- attr->version.major = le16_to_cpu(rsp_params->version_major);
- attr->version.minor = le16_to_cpu(rsp_params->version_minor);
return 0;
}
EXPORT_SYMBOL(dpbp_get_attributes);
/**
- * dpbp_set_notifications() - Set notifications towards software
- * @mc_io: Pointer to MC portal's I/O object
+ * dpbp_get_api_version - Get Data Path Buffer Pool API version
+ * @mc_io: Pointer to Mc portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPBP object
- * @cfg: notifications configuration
+ * @major_ver: Major version of Buffer Pool API
+ * @minor_ver: Minor version of Buffer Pool API
*
* Return: '0' on Success; Error code otherwise.
*/
-int dpbp_set_notifications(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- struct dpbp_notification_cfg *cfg)
+int dpbp_get_api_version(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 *major_ver,
+ u16 *minor_ver)
{
struct mc_command cmd = { 0 };
- struct dpbp_cmd_set_notifications *cmd_params;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPBP_CMDID_SET_NOTIFICATIONS,
- cmd_flags, token);
- cmd_params = (struct dpbp_cmd_set_notifications *)cmd.params;
- cmd_params->depletion_entry = cpu_to_le32(cfg->depletion_entry);
- cmd_params->depletion_exit = cpu_to_le32(cfg->depletion_exit);
- cmd_params->surplus_entry = cpu_to_le32(cfg->surplus_entry);
- cmd_params->surplus_exit = cpu_to_le32(cfg->surplus_exit);
- cmd_params->options = cpu_to_le16(cfg->options);
- cmd_params->message_ctx = cpu_to_le64(cfg->message_ctx);
- cmd_params->message_iova = cpu_to_le64(cfg->message_iova);
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpbp_get_notifications() - Get the notifications configuration
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPBP object
- * @cfg: notifications configuration
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpbp_get_notifications(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- struct dpbp_notification_cfg *cfg)
-{
- struct mc_command cmd = { 0 };
- struct dpbp_rsp_get_notifications *rsp_params;
int err;
/* prepare command */
- cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_NOTIFICATIONS,
- cmd_flags,
- token);
+ cmd.header = mc_encode_cmd_header(DPBP_CMDID_GET_API_VERSION,
+ cmd_flags, 0);
- /* send command to mc*/
+ /* send command to mc */
err = mc_send_command(mc_io, &cmd);
if (err)
return err;
/* retrieve response parameters */
- rsp_params = (struct dpbp_rsp_get_notifications *)cmd.params;
- cfg->depletion_entry = le32_to_cpu(rsp_params->depletion_entry);
- cfg->depletion_exit = le32_to_cpu(rsp_params->depletion_exit);
- cfg->surplus_entry = le32_to_cpu(rsp_params->surplus_entry);
- cfg->surplus_exit = le32_to_cpu(rsp_params->surplus_exit);
- cfg->options = le16_to_cpu(rsp_params->options);
- cfg->message_ctx = le64_to_cpu(rsp_params->message_ctx);
- cfg->message_iova = le64_to_cpu(rsp_params->message_iova);
+ mc_cmd_read_api_version(&cmd, major_ver, minor_ver);
return 0;
}
+EXPORT_SYMBOL(dpbp_get_api_version);
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/dpcon-cmd.h
@@ -0,0 +1,85 @@
+/*
+ * Copyright 2013-2016 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef _FSL_DPCON_CMD_H
+#define _FSL_DPCON_CMD_H
+
+/* DPCON Version */
+#define DPCON_VER_MAJOR 3
+#define DPCON_VER_MINOR 2
+
+/* Command versioning */
+#define DPCON_CMD_BASE_VERSION 1
+#define DPCON_CMD_ID_OFFSET 4
+
+#define DPCON_CMD(id) (((id) << DPCON_CMD_ID_OFFSET) | DPCON_CMD_BASE_VERSION)
+
+/* Command IDs */
+#define DPCON_CMDID_CLOSE DPCON_CMD(0x800)
+#define DPCON_CMDID_OPEN DPCON_CMD(0x808)
+#define DPCON_CMDID_GET_API_VERSION DPCON_CMD(0xa08)
+
+#define DPCON_CMDID_ENABLE DPCON_CMD(0x002)
+#define DPCON_CMDID_DISABLE DPCON_CMD(0x003)
+#define DPCON_CMDID_GET_ATTR DPCON_CMD(0x004)
+#define DPCON_CMDID_RESET DPCON_CMD(0x005)
+#define DPCON_CMDID_IS_ENABLED DPCON_CMD(0x006)
+
+#define DPCON_CMDID_SET_NOTIFICATION DPCON_CMD(0x100)
+
+struct dpcon_cmd_open {
+ __le32 dpcon_id;
+};
+
+#define DPCON_ENABLE 1
+
+struct dpcon_rsp_is_enabled {
+ u8 enabled;
+};
+
+struct dpcon_rsp_get_attr {
+ /* response word 0 */
+ __le32 id;
+ __le16 qbman_ch_id;
+ u8 num_priorities;
+ u8 pad;
+};
+
+struct dpcon_cmd_set_notification {
+ /* cmd word 0 */
+ __le32 dpio_id;
+ u8 priority;
+ u8 pad[3];
+ /* cmd word 1 */
+ __le64 user_ctx;
+};
+
+#endif /* _FSL_DPCON_CMD_H */
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/dpcon.c
@@ -0,0 +1,317 @@
+/* Copyright 2013-2016 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "../include/mc-sys.h"
+#include "../include/mc-cmd.h"
+#include "../include/dpcon.h"
+
+#include "dpcon-cmd.h"
+
+/**
+ * dpcon_open() - Open a control session for the specified object
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @dpcon_id: DPCON unique ID
+ * @token: Returned token; use in subsequent API calls
+ *
+ * This function can be used to open a control session for an
+ * already created object; an object may have been declared in
+ * the DPL or by calling the dpcon_create() function.
+ * This function returns a unique authentication token,
+ * associated with the specific object ID and the specific MC
+ * portal; this token must be used in all subsequent commands for
+ * this specific object.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpcon_open(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ int dpcon_id,
+ u16 *token)
+{
+ struct mc_command cmd = { 0 };
+ struct dpcon_cmd_open *dpcon_cmd;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPCON_CMDID_OPEN,
+ cmd_flags,
+ 0);
+ dpcon_cmd = (struct dpcon_cmd_open *)cmd.params;
+ dpcon_cmd->dpcon_id = cpu_to_le32(dpcon_id);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ *token = mc_cmd_hdr_read_token(&cmd);
+
+ return 0;
+}
+EXPORT_SYMBOL(dpcon_open);
+
+/**
+ * dpcon_close() - Close the control session of the object
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPCON object
+ *
+ * After this function is called, no further operations are
+ * allowed on the object without opening a new control session.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpcon_close(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPCON_CMDID_CLOSE,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+EXPORT_SYMBOL(dpcon_close);
+
+/**
+ * dpcon_enable() - Enable the DPCON
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPCON object
+ *
+ * Return: '0' on Success; Error code otherwise
+ */
+int dpcon_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPCON_CMDID_ENABLE,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+EXPORT_SYMBOL(dpcon_enable);
+
+/**
+ * dpcon_disable() - Disable the DPCON
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPCON object
+ *
+ * Return: '0' on Success; Error code otherwise
+ */
+int dpcon_disable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPCON_CMDID_DISABLE,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+EXPORT_SYMBOL(dpcon_disable);
+
+/**
+ * dpcon_is_enabled() - Check if the DPCON is enabled.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPCON object
+ * @en: Returns '1' if object is enabled; '0' otherwise
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpcon_is_enabled(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int *en)
+{
+ struct mc_command cmd = { 0 };
+ struct dpcon_rsp_is_enabled *dpcon_rsp;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPCON_CMDID_IS_ENABLED,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ dpcon_rsp = (struct dpcon_rsp_is_enabled *)cmd.params;
+ *en = dpcon_rsp->enabled & DPCON_ENABLE;
+
+ return 0;
+}
+EXPORT_SYMBOL(dpcon_is_enabled);
+
+/**
+ * dpcon_reset() - Reset the DPCON, returns the object to initial state.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPCON object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpcon_reset(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPCON_CMDID_RESET,
+ cmd_flags, token);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+EXPORT_SYMBOL(dpcon_reset);
+
+/**
+ * dpcon_get_attributes() - Retrieve DPCON attributes.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPCON object
+ * @attr: Object's attributes
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpcon_get_attributes(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpcon_attr *attr)
+{
+ struct mc_command cmd = { 0 };
+ struct dpcon_rsp_get_attr *dpcon_rsp;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPCON_CMDID_GET_ATTR,
+ cmd_flags,
+ token);
+
+ /* send command to mc*/
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ dpcon_rsp = (struct dpcon_rsp_get_attr *)cmd.params;
+ attr->id = le32_to_cpu(dpcon_rsp->id);
+ attr->qbman_ch_id = le16_to_cpu(dpcon_rsp->qbman_ch_id);
+ attr->num_priorities = dpcon_rsp->num_priorities;
+
+ return 0;
+}
+EXPORT_SYMBOL(dpcon_get_attributes);
+
+/**
+ * dpcon_set_notification() - Set DPCON notification destination
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPCON object
+ * @cfg: Notification parameters
+ *
+ * Return: '0' on Success; Error code otherwise
+ */
+int dpcon_set_notification(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpcon_notification_cfg *cfg)
+{
+ struct mc_command cmd = { 0 };
+ struct dpcon_cmd_set_notification *dpcon_cmd;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPCON_CMDID_SET_NOTIFICATION,
+ cmd_flags,
+ token);
+ dpcon_cmd = (struct dpcon_cmd_set_notification *)cmd.params;
+ dpcon_cmd->dpio_id = cpu_to_le32(cfg->dpio_id);
+ dpcon_cmd->priority = cfg->priority;
+ dpcon_cmd->user_ctx = cpu_to_le64(cfg->user_ctx);
+
+ /* send command to mc*/
+ return mc_send_command(mc_io, &cmd);
+}
+EXPORT_SYMBOL(dpcon_set_notification);
+
+/**
+ * dpcon_get_api_version - Get Data Path Concentrator API version
+ * @mc_io: Pointer to MC portal's DPCON object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @major_ver: Major version of DPCON API
+ * @minor_ver: Minor version of DPCON API
+ *
+ * Return: '0' on Success; Error code otherwise
+ */
+int dpcon_get_api_version(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 *major_ver,
+ u16 *minor_ver)
+{
+ struct mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPCON_CMDID_GET_API_VERSION,
+ cmd_flags, 0);
+
+ /* send command to mc */
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ mc_cmd_read_api_version(&cmd, major_ver, minor_ver);
+
+ return 0;
+}
+EXPORT_SYMBOL(dpcon_get_api_version);
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/dpio/Makefile
@@ -0,0 +1,11 @@
+#
+# QorIQ DPAA2 DPIO driver
+#
+
+subdir-ccflags-y := -Werror
+
+obj-$(CONFIG_FSL_MC_DPIO) += fsl-mc-dpio.o
+
+fsl-mc-dpio-objs := dpio.o qbman-portal.o dpio-service.o dpio-driver.o
+
+obj-$(CONFIG_FSL_QBMAN_DEBUG) += qbman_debug.o
--- a/drivers/staging/fsl-mc/include/dpcon-cmd.h
+++ /dev/null
@@ -1,62 +0,0 @@
-/* Copyright 2013-2015 Freescale Semiconductor Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * * Neither the name of the above-listed copyright holders nor the
- * names of any contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- *
- * ALTERNATIVELY, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") as published by the Free Software
- * Foundation, either version 2 of that License or (at your option) any
- * later version.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-#ifndef _FSL_DPCON_CMD_H
-#define _FSL_DPCON_CMD_H
-
-/* DPCON Version */
-#define DPCON_VER_MAJOR 2
-#define DPCON_VER_MINOR 1
-
-/* Command IDs */
-#define DPCON_CMDID_CLOSE 0x800
-#define DPCON_CMDID_OPEN 0x808
-#define DPCON_CMDID_CREATE 0x908
-#define DPCON_CMDID_DESTROY 0x900
-
-#define DPCON_CMDID_ENABLE 0x002
-#define DPCON_CMDID_DISABLE 0x003
-#define DPCON_CMDID_GET_ATTR 0x004
-#define DPCON_CMDID_RESET 0x005
-#define DPCON_CMDID_IS_ENABLED 0x006
-
-#define DPCON_CMDID_SET_IRQ 0x010
-#define DPCON_CMDID_GET_IRQ 0x011
-#define DPCON_CMDID_SET_IRQ_ENABLE 0x012
-#define DPCON_CMDID_GET_IRQ_ENABLE 0x013
-#define DPCON_CMDID_SET_IRQ_MASK 0x014
-#define DPCON_CMDID_GET_IRQ_MASK 0x015
-#define DPCON_CMDID_GET_IRQ_STATUS 0x016
-#define DPCON_CMDID_CLEAR_IRQ_STATUS 0x017
-
-#define DPCON_CMDID_SET_NOTIFICATION 0x100
-
-#endif /* _FSL_DPCON_CMD_H */
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/dpio/dpio-cmd.h
@@ -0,0 +1,75 @@
+/*
+ * Copyright 2013-2016 Freescale Semiconductor Inc.
+ * Copyright 2016 NXP
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef _FSL_DPIO_CMD_H
+#define _FSL_DPIO_CMD_H
+
+/* DPIO Version */
+#define DPIO_VER_MAJOR 4
+#define DPIO_VER_MINOR 2
+
+/* Command Versioning */
+
+#define DPIO_CMD_ID_OFFSET 4
+#define DPIO_CMD_BASE_VERSION 1
+
+#define DPIO_CMD(id) (((id) << DPIO_CMD_ID_OFFSET) | DPIO_CMD_BASE_VERSION)
+
+/* Command IDs */
+#define DPIO_CMDID_CLOSE DPIO_CMD(0x800)
+#define DPIO_CMDID_OPEN DPIO_CMD(0x803)
+#define DPIO_CMDID_GET_API_VERSION DPIO_CMD(0xa03)
+#define DPIO_CMDID_ENABLE DPIO_CMD(0x002)
+#define DPIO_CMDID_DISABLE DPIO_CMD(0x003)
+#define DPIO_CMDID_GET_ATTR DPIO_CMD(0x004)
+
+struct dpio_cmd_open {
+ __le32 dpio_id;
+};
+
+#define DPIO_CHANNEL_MODE_MASK 0x3
+
+struct dpio_rsp_get_attr {
+ /* cmd word 0 */
+ __le32 id;
+ __le16 qbman_portal_id;
+ u8 num_priorities;
+ u8 channel_mode;
+ /* cmd word 1 */
+ __le64 qbman_portal_ce_addr;
+ /* cmd word 2 */
+ __le64 qbman_portal_ci_addr;
+ /* cmd word 3 */
+ __le32 qbman_version;
+};
+
+#endif /* _FSL_DPIO_CMD_H */
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/dpio/dpio-driver.c
@@ -0,0 +1,296 @@
+/*
+ * Copyright 2014-2016 Freescale Semiconductor Inc.
+ * Copyright 2016 NXP
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/msi.h>
+#include <linux/dma-mapping.h>
+#include <linux/delay.h>
+
+#include "../../include/mc.h"
+#include "../../include/dpaa2-io.h"
+
+#include "qbman-portal.h"
+#include "dpio.h"
+#include "dpio-cmd.h"
+
+MODULE_LICENSE("Dual BSD/GPL");
+MODULE_AUTHOR("Freescale Semiconductor, Inc");
+MODULE_DESCRIPTION("DPIO Driver");
+
+struct dpio_priv {
+ struct dpaa2_io *io;
+};
+
+static irqreturn_t dpio_irq_handler(int irq_num, void *arg)
+{
+ struct device *dev = (struct device *)arg;
+ struct dpio_priv *priv = dev_get_drvdata(dev);
+
+ return dpaa2_io_irq(priv->io);
+}
+
+static void unregister_dpio_irq_handlers(struct fsl_mc_device *dpio_dev)
+{
+ struct fsl_mc_device_irq *irq;
+
+ irq = dpio_dev->irqs[0];
+
+ /* clear the affinity hint */
+ irq_set_affinity_hint(irq->msi_desc->irq, NULL);
+}
+
+static int register_dpio_irq_handlers(struct fsl_mc_device *dpio_dev, int cpu)
+{
+ struct dpio_priv *priv;
+ int error;
+ struct fsl_mc_device_irq *irq;
+ cpumask_t mask;
+
+ priv = dev_get_drvdata(&dpio_dev->dev);
+
+ irq = dpio_dev->irqs[0];
+ error = devm_request_irq(&dpio_dev->dev,
+ irq->msi_desc->irq,
+ dpio_irq_handler,
+ 0,
+ dev_name(&dpio_dev->dev),
+ &dpio_dev->dev);
+ if (error < 0) {
+ dev_err(&dpio_dev->dev,
+ "devm_request_irq() failed: %d\n",
+ error);
+ return error;
+ }
+
+ /* set the affinity hint */
+ cpumask_clear(&mask);
+ cpumask_set_cpu(cpu, &mask);
+ if (irq_set_affinity_hint(irq->msi_desc->irq, &mask))
+ dev_err(&dpio_dev->dev,
+ "irq_set_affinity failed irq %d cpu %d\n",
+ irq->msi_desc->irq, cpu);
+
+ return 0;
+}
+
+static int dpaa2_dpio_probe(struct fsl_mc_device *dpio_dev)
+{
+ struct dpio_attr dpio_attrs;
+ struct dpaa2_io_desc desc;
+ struct dpio_priv *priv;
+ int err = -ENOMEM;
+ struct device *dev = &dpio_dev->dev;
+ static int next_cpu = -1;
+
+ priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ goto err_priv_alloc;
+
+ dev_set_drvdata(dev, priv);
+
+ err = fsl_mc_portal_allocate(dpio_dev, 0, &dpio_dev->mc_io);
+ if (err) {
+ dev_dbg(dev, "MC portal allocation failed\n");
+ err = -EPROBE_DEFER;
+ goto err_mcportal;
+ }
+
+ err = dpio_open(dpio_dev->mc_io, 0, dpio_dev->obj_desc.id,
+ &dpio_dev->mc_handle);
+ if (err) {
+ dev_err(dev, "dpio_open() failed\n");
+ goto err_open;
+ }
+
+ err = dpio_get_attributes(dpio_dev->mc_io, 0, dpio_dev->mc_handle,
+ &dpio_attrs);
+ if (err) {
+ dev_err(dev, "dpio_get_attributes() failed %d\n", err);
+ goto err_get_attr;
+ }
+ desc.qman_version = dpio_attrs.qbman_version;
+
+ err = dpio_enable(dpio_dev->mc_io, 0, dpio_dev->mc_handle);
+ if (err) {
+ dev_err(dev, "dpio_enable() failed %d\n", err);
+ goto err_get_attr;
+ }
+
+ /* initialize DPIO descriptor */
+ desc.receives_notifications = dpio_attrs.num_priorities ? 1 : 0;
+ desc.has_8prio = dpio_attrs.num_priorities == 8 ? 1 : 0;
+ desc.dpio_id = dpio_dev->obj_desc.id;
+
+ /* get the cpu to use for the affinity hint */
+ if (next_cpu == -1)
+ next_cpu = cpumask_first(cpu_online_mask);
+ else
+ next_cpu = cpumask_next(next_cpu, cpu_online_mask);
+
+ if (!cpu_possible(next_cpu)) {
+ dev_err(dev, "probe failed. Number of DPIOs exceeds NR_CPUS.\n");
+ err = -ERANGE;
+ goto err_allocate_irqs;
+ }
+ desc.cpu = next_cpu;
+
+ /*
+ * Set the CENA regs to be the cache enabled area of the portal to
+ * achieve the best performance.
+ */
+ desc.regs_cena = ioremap_cache_ns(dpio_dev->regions[0].start,
+ resource_size(&dpio_dev->regions[0]));
+ desc.regs_cinh = ioremap(dpio_dev->regions[1].start,
+ resource_size(&dpio_dev->regions[1]));
+
+ err = fsl_mc_allocate_irqs(dpio_dev);
+ if (err) {
+ dev_err(dev, "fsl_mc_allocate_irqs failed. err=%d\n", err);
+ goto err_allocate_irqs;
+ }
+
+ err = register_dpio_irq_handlers(dpio_dev, desc.cpu);
+ if (err)
+ goto err_register_dpio_irq;
+
+ priv->io = dpaa2_io_create(&desc);
+ if (!priv->io) {
+ dev_err(dev, "dpaa2_io_create failed\n");
+ goto err_dpaa2_io_create;
+ }
+
+ dev_info(dev, "probed\n");
+ dev_dbg(dev, " receives_notifications = %d\n",
+ desc.receives_notifications);
+ dpio_close(dpio_dev->mc_io, 0, dpio_dev->mc_handle);
+ fsl_mc_portal_free(dpio_dev->mc_io);
+
+ return 0;
+
+err_dpaa2_io_create:
+ unregister_dpio_irq_handlers(dpio_dev);
+err_register_dpio_irq:
+ fsl_mc_free_irqs(dpio_dev);
+err_allocate_irqs:
+ dpio_disable(dpio_dev->mc_io, 0, dpio_dev->mc_handle);
+err_get_attr:
+ dpio_close(dpio_dev->mc_io, 0, dpio_dev->mc_handle);
+err_open:
+ fsl_mc_portal_free(dpio_dev->mc_io);
+err_mcportal:
+ dev_set_drvdata(dev, NULL);
+err_priv_alloc:
+ return err;
+}
+
+/* Tear down interrupts for a given DPIO object */
+static void dpio_teardown_irqs(struct fsl_mc_device *dpio_dev)
+{
+ unregister_dpio_irq_handlers(dpio_dev);
+ fsl_mc_free_irqs(dpio_dev);
+}
+
+static int dpaa2_dpio_remove(struct fsl_mc_device *dpio_dev)
+{
+ struct device *dev;
+ struct dpio_priv *priv;
+ int err;
+
+ dev = &dpio_dev->dev;
+ priv = dev_get_drvdata(dev);
+
+ dpaa2_io_down(priv->io);
+
+ dpio_teardown_irqs(dpio_dev);
+
+ err = fsl_mc_portal_allocate(dpio_dev, 0, &dpio_dev->mc_io);
+ if (err) {
+ dev_err(dev, "MC portal allocation failed\n");
+ goto err_mcportal;
+ }
+
+ err = dpio_open(dpio_dev->mc_io, 0, dpio_dev->obj_desc.id,
+ &dpio_dev->mc_handle);
+ if (err) {
+ dev_err(dev, "dpio_open() failed\n");
+ goto err_open;
+ }
+
+ dpio_disable(dpio_dev->mc_io, 0, dpio_dev->mc_handle);
+
+ dpio_close(dpio_dev->mc_io, 0, dpio_dev->mc_handle);
+
+ fsl_mc_portal_free(dpio_dev->mc_io);
+
+ dev_set_drvdata(dev, NULL);
+
+ return 0;
+
+err_open:
+ fsl_mc_portal_free(dpio_dev->mc_io);
+err_mcportal:
+ return err;
+}
+
+static const struct fsl_mc_device_id dpaa2_dpio_match_id_table[] = {
+ {
+ .vendor = FSL_MC_VENDOR_FREESCALE,
+ .obj_type = "dpio",
+ },
+ { .vendor = 0x0 }
+};
+
+static struct fsl_mc_driver dpaa2_dpio_driver = {
+ .driver = {
+ .name = KBUILD_MODNAME,
+ .owner = THIS_MODULE,
+ },
+ .probe = dpaa2_dpio_probe,
+ .remove = dpaa2_dpio_remove,
+ .match_id_table = dpaa2_dpio_match_id_table
+};
+
+static int dpio_driver_init(void)
+{
+ return fsl_mc_driver_register(&dpaa2_dpio_driver);
+}
+
+static void dpio_driver_exit(void)
+{
+ fsl_mc_driver_unregister(&dpaa2_dpio_driver);
+}
+module_init(dpio_driver_init);
+module_exit(dpio_driver_exit);
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/dpio/dpio-driver.txt
@@ -0,0 +1,135 @@
+Copyright 2016 NXP
+
+Introduction
+------------
+
+A DPAA2 DPIO (Data Path I/O) is a hardware object that provides
+interfaces to enqueue and dequeue frames to/from network interfaces
+and other accelerators. A DPIO also provides hardware buffer
+pool management for network interfaces.
+
+This document provides an overview the Linux DPIO driver, its
+subcomponents, and its APIs.
+
+See Documentation/dpaa2/overview.txt for a general overview of DPAA2
+and the general DPAA2 driver architecture in Linux.
+
+Driver Overview
+---------------
+
+The DPIO driver is bound to DPIO objects discovered on the fsl-mc bus and
+provides services that:
+ A) allow other drivers, such as the Ethernet driver, to enqueue and dequeue
+ frames for their respective objects
+ B) allow drivers to register callbacks for data availability notifications
+ when data becomes available on a queue or channel
+ C) allow drivers to manage hardware buffer pools
+
+The Linux DPIO driver consists of 3 primary components--
+ DPIO object driver-- fsl-mc driver that manages the DPIO object
+ DPIO service-- provides APIs to other Linux drivers for services
+ QBman portal interface-- sends portal commands, gets responses
+
+ fsl-mc other
+ bus drivers
+ | |
+ +---+----+ +------+-----+
+ |DPIO obj| |DPIO service|
+ | driver |---| (DPIO) |
+ +--------+ +------+-----+
+ |
+ +------+-----+
+ | QBman |
+ | portal i/f |
+ +------------+
+ |
+ hardware
+
+The diagram below shows how the DPIO driver components fit with the other
+DPAA2 Linux driver components:
+ +------------+
+ | OS Network |
+ | Stack |
+ +------------+ +------------+
+ | Allocator |. . . . . . . | Ethernet |
+ |(DPMCP,DPBP)| | (DPNI) |
+ +-.----------+ +---+---+----+
+ . . ^ |
+ . . <data avail, | |<enqueue,
+ . . tx confirm> | | dequeue>
+ +-------------+ . | |
+ | DPRC driver | . +--------+ +------------+
+ | (DPRC) | . . |DPIO obj| |DPIO service|
+ +----------+--+ | driver |-| (DPIO) |
+ | +--------+ +------+-----+
+ |<dev add/remove> +------|-----+
+ | | QBman |
+ +----+--------------+ | portal i/f |
+ | MC-bus driver | +------------+
+ | | |
+ | /soc/fsl-mc | |
+ +-------------------+ |
+ |
+ =========================================|=========|========================
+ +-+--DPIO---|-----------+
+ | | |
+ | QBman Portal |
+ +-----------------------+
+
+ ============================================================================
+
+
+DPIO Object Driver (dpio-driver.c)
+----------------------------------
+
+ The dpio-driver component registers with the fsl-mc bus to handle objects of
+ type "dpio". The implementation of probe() handles basic initialization
+ of the DPIO including mapping of the DPIO regions (the QBman SW portal)
+ and initializing interrupts and registering irq handlers. The dpio-driver
+ registers the probed DPIO with dpio-service.
+
+DPIO service (dpio-service.c, dpaa2-io.h)
+------------------------------------------
+
+ The dpio service component provides queuing, notification, and buffers
+ management services to DPAA2 drivers, such as the Ethernet driver. A system
+ will typically allocate 1 DPIO object per CPU to allow queuing operations
+ to happen simultaneously across all CPUs.
+
+ Notification handling
+ dpaa2_io_service_register()
+ dpaa2_io_service_deregister()
+ dpaa2_io_service_rearm()
+
+ Queuing
+ dpaa2_io_service_pull_fq()
+ dpaa2_io_service_pull_channel()
+ dpaa2_io_service_enqueue_fq()
+ dpaa2_io_service_enqueue_qd()
+ dpaa2_io_store_create()
+ dpaa2_io_store_destroy()
+ dpaa2_io_store_next()
+
+ Buffer pool management
+ dpaa2_io_service_release()
+ dpaa2_io_service_acquire()
+
+QBman portal interface (qbman-portal.c)
+---------------------------------------
+
+ The qbman-portal component provides APIs to do the low level hardware
+ bit twiddling for operations such as:
+ -initializing Qman software portals
+ -building and sending portal commands
+ -portal interrupt configuration and processing
+
+ The qbman-portal APIs are not public to other drivers, and are
+ only used by dpio-service.
+
+Other (dpaa2-fd.h, dpaa2-global.h)
+----------------------------------
+
+ Frame descriptor and scatter-gather definitions and the APIs used to
+ manipulate them are defined in dpaa2-fd.h.
+
+ Dequeue result struct and parsing APIs are defined in dpaa2-global.h.
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/dpio/dpio-service.c
@@ -0,0 +1,693 @@
+/*
+ * Copyright 2014-2016 Freescale Semiconductor Inc.
+ * Copyright 2016 NXP
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#include <linux/types.h>
+#include "../../include/mc.h"
+#include "../../include/dpaa2-io.h"
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+
+#include "dpio.h"
+#include "qbman-portal.h"
+#include "qbman_debug.h"
+
+struct dpaa2_io {
+ atomic_t refs;
+ struct dpaa2_io_desc dpio_desc;
+ struct qbman_swp_desc swp_desc;
+ struct qbman_swp *swp;
+ struct list_head node;
+ /* protect against multiple management commands */
+ spinlock_t lock_mgmt_cmd;
+ /* protect notifications list */
+ spinlock_t lock_notifications;
+ struct list_head notifications;
+};
+
+struct dpaa2_io_store {
+ unsigned int max;
+ dma_addr_t paddr;
+ struct dpaa2_dq *vaddr;
+ void *alloced_addr; /* unaligned value from kmalloc() */
+ unsigned int idx; /* position of the next-to-be-returned entry */
+ struct qbman_swp *swp; /* portal used to issue VDQCR */
+ struct device *dev; /* device used for DMA mapping */
+};
+
+/* keep a per cpu array of DPIOs for fast access */
+static struct dpaa2_io *dpio_by_cpu[NR_CPUS];
+static struct list_head dpio_list = LIST_HEAD_INIT(dpio_list);
+static DEFINE_SPINLOCK(dpio_list_lock);
+
+static inline struct dpaa2_io *service_select_by_cpu(struct dpaa2_io *d,
+ int cpu)
+{
+ if (d)
+ return d;
+
+ if (unlikely(cpu >= (int)num_possible_cpus()))
+ return NULL;
+
+ /*
+ * If cpu == -1, choose the current cpu, with no guarantees about
+ * potentially being migrated away.
+ */
+ if (cpu < 0)
+ cpu = smp_processor_id();
+
+ /* If a specific cpu was requested, pick it up immediately */
+ return dpio_by_cpu[cpu];
+}
+
+static inline struct dpaa2_io *service_select(struct dpaa2_io *d)
+{
+ if (d)
+ return d;
+
+ d = service_select_by_cpu(d, -1);
+ if (d)
+ return d;
+
+ spin_lock(&dpio_list_lock);
+ d = list_entry(dpio_list.next, struct dpaa2_io, node);
+ list_del(&d->node);
+ list_add_tail(&d->node, &dpio_list);
+ spin_unlock(&dpio_list_lock);
+
+ return d;
+}
+
+/**
+ * dpaa2_io_create() - create a dpaa2_io object.
+ * @desc: the dpaa2_io descriptor
+ *
+ * Activates a "struct dpaa2_io" corresponding to the given config of an actual
+ * DPIO object.
+ *
+ * Return a valid dpaa2_io object for success, or NULL for failure.
+ */
+struct dpaa2_io *dpaa2_io_create(const struct dpaa2_io_desc *desc)
+{
+ struct dpaa2_io *obj = kmalloc(sizeof(*obj), GFP_KERNEL);
+
+ if (!obj)
+ return NULL;
+
+ /* check if CPU is out of range (-1 means any cpu) */
+ if (desc->cpu >= (int)num_possible_cpus()) {
+ kfree(obj);
+ return NULL;
+ }
+
+ atomic_set(&obj->refs, 1);
+ obj->dpio_desc = *desc;
+ obj->swp_desc.cena_bar = obj->dpio_desc.regs_cena;
+ obj->swp_desc.cinh_bar = obj->dpio_desc.regs_cinh;
+ obj->swp_desc.qman_version = obj->dpio_desc.qman_version;
+ obj->swp = qbman_swp_init(&obj->swp_desc);
+
+ if (!obj->swp) {
+ kfree(obj);
+ return NULL;
+ }
+
+ INIT_LIST_HEAD(&obj->node);
+ spin_lock_init(&obj->lock_mgmt_cmd);
+ spin_lock_init(&obj->lock_notifications);
+ INIT_LIST_HEAD(&obj->notifications);
+
+ /* For now only enable DQRR interrupts */
+ qbman_swp_interrupt_set_trigger(obj->swp,
+ QBMAN_SWP_INTERRUPT_DQRI);
+ qbman_swp_interrupt_clear_status(obj->swp, 0xffffffff);
+ if (obj->dpio_desc.receives_notifications)
+ qbman_swp_push_set(obj->swp, 0, 1);
+
+ spin_lock(&dpio_list_lock);
+ list_add_tail(&obj->node, &dpio_list);
+ if (desc->cpu >= 0 && !dpio_by_cpu[desc->cpu])
+ dpio_by_cpu[desc->cpu] = obj;
+ spin_unlock(&dpio_list_lock);
+
+ return obj;
+}
+EXPORT_SYMBOL(dpaa2_io_create);
+
+/**
+ * dpaa2_io_down() - release the dpaa2_io object.
+ * @d: the dpaa2_io object to be released.
+ *
+ * The "struct dpaa2_io" type can represent an individual DPIO object (as
+ * described by "struct dpaa2_io_desc") or an instance of a "DPIO service",
+ * which can be used to group/encapsulate multiple DPIO objects. In all cases,
+ * each handle obtained should be released using this function.
+ */
+void dpaa2_io_down(struct dpaa2_io *d)
+{
+ if (!atomic_dec_and_test(&d->refs))
+ return;
+ kfree(d);
+}
+EXPORT_SYMBOL(dpaa2_io_down);
+
+#define DPAA_POLL_MAX 32
+
+/**
+ * dpaa2_io_irq() - ISR for DPIO interrupts
+ *
+ * @obj: the given DPIO object.
+ *
+ * Return IRQ_HANDLED for success or IRQ_NONE if there
+ * were no pending interrupts.
+ */
+irqreturn_t dpaa2_io_irq(struct dpaa2_io *obj)
+{
+ const struct dpaa2_dq *dq;
+ int max = 0;
+ struct qbman_swp *swp;
+ u32 status;
+
+ swp = obj->swp;
+ status = qbman_swp_interrupt_read_status(swp);
+ if (!status)
+ return IRQ_NONE;
+
+ dq = qbman_swp_dqrr_next(swp);
+ while (dq) {
+ if (qbman_result_is_SCN(dq)) {
+ struct dpaa2_io_notification_ctx *ctx;
+ u64 q64;
+
+ q64 = qbman_result_SCN_ctx(dq);
+ ctx = (void *)q64;
+ ctx->cb(ctx);
+ } else {
+ pr_crit("fsl-mc-dpio: Unrecognised/ignored DQRR entry\n");
+ }
+ qbman_swp_dqrr_consume(swp, dq);
+ ++max;
+ if (max > DPAA_POLL_MAX)
+ goto done;
+ dq = qbman_swp_dqrr_next(swp);
+ }
+done:
+ qbman_swp_interrupt_clear_status(swp, status);
+ qbman_swp_interrupt_set_inhibit(swp, 0);
+ return IRQ_HANDLED;
+}
+EXPORT_SYMBOL(dpaa2_io_irq);
+
+/**
+ * dpaa2_io_service_register() - Prepare for servicing of FQDAN or CDAN
+ * notifications on the given DPIO service.
+ * @d: the given DPIO service.
+ * @ctx: the notification context.
+ *
+ * The caller should make the MC command to attach a DPAA2 object to
+ * a DPIO after this function completes successfully. In that way:
+ * (a) The DPIO service is "ready" to handle a notification arrival
+ * (which might happen before the "attach" command to MC has
+ * returned control of execution back to the caller)
+ * (b) The DPIO service can provide back to the caller the 'dpio_id' and
+ * 'qman64' parameters that it should pass along in the MC command
+ * in order for the object to be configured to produce the right
+ * notification fields to the DPIO service.
+ *
+ * Return 0 for success, or -ENODEV for failure.
+ */
+int dpaa2_io_service_register(struct dpaa2_io *d,
+ struct dpaa2_io_notification_ctx *ctx)
+{
+ unsigned long irqflags;
+
+ d = service_select_by_cpu(d, ctx->desired_cpu);
+ if (!d)
+ return -ENODEV;
+
+ ctx->dpio_id = d->dpio_desc.dpio_id;
+ ctx->qman64 = (u64)ctx;
+ ctx->dpio_private = d;
+ spin_lock_irqsave(&d->lock_notifications, irqflags);
+ list_add(&ctx->node, &d->notifications);
+ spin_unlock_irqrestore(&d->lock_notifications, irqflags);
+
+ /* Enable the generation of CDAN notifications */
+ if (ctx->is_cdan)
+ qbman_swp_CDAN_set_context_enable(d->swp,
+ (u16)ctx->id,
+ ctx->qman64);
+ return 0;
+}
+EXPORT_SYMBOL(dpaa2_io_service_register);
+
+/**
+ * dpaa2_io_service_deregister - The opposite of 'register'.
+ * @service: the given DPIO service.
+ * @ctx: the notification context.
+ *
+ * This function should be called only after sending the MC command to
+ * to detach the notification-producing device from the DPIO.
+ */
+void dpaa2_io_service_deregister(struct dpaa2_io *service,
+ struct dpaa2_io_notification_ctx *ctx)
+{
+ struct dpaa2_io *d = ctx->dpio_private;
+ unsigned long irqflags;
+
+ if (ctx->is_cdan)
+ qbman_swp_CDAN_disable(d->swp, (u16)ctx->id);
+
+ spin_lock_irqsave(&d->lock_notifications, irqflags);
+ list_del(&ctx->node);
+ spin_unlock_irqrestore(&d->lock_notifications, irqflags);
+}
+EXPORT_SYMBOL(dpaa2_io_service_deregister);
+
+/**
+ * dpaa2_io_service_rearm() - Rearm the notification for the given DPIO service.
+ * @d: the given DPIO service.
+ * @ctx: the notification context.
+ *
+ * Once a FQDAN/CDAN has been produced, the corresponding FQ/channel is
+ * considered "disarmed". Ie. the user can issue pull dequeue operations on that
+ * traffic source for as long as it likes. Eventually it may wish to "rearm"
+ * that source to allow it to produce another FQDAN/CDAN, that's what this
+ * function achieves.
+ *
+ * Return 0 for success.
+ */
+int dpaa2_io_service_rearm(struct dpaa2_io *d,
+ struct dpaa2_io_notification_ctx *ctx)
+{
+ unsigned long irqflags;
+ int err;
+
+ d = service_select_by_cpu(d, ctx->desired_cpu);
+ if (!unlikely(d))
+ return -ENODEV;
+
+ spin_lock_irqsave(&d->lock_mgmt_cmd, irqflags);
+ if (ctx->is_cdan)
+ err = qbman_swp_CDAN_enable(d->swp, (u16)ctx->id);
+ else
+ err = qbman_swp_fq_schedule(d->swp, ctx->id);
+ spin_unlock_irqrestore(&d->lock_mgmt_cmd, irqflags);
+
+ return err;
+}
+EXPORT_SYMBOL(dpaa2_io_service_rearm);
+
+/**
+ * dpaa2_io_service_pull_fq() - pull dequeue functions from a fq.
+ * @d: the given DPIO service.
+ * @fqid: the given frame queue id.
+ * @s: the dpaa2_io_store object for the result.
+ *
+ * Return 0 for success, or error code for failure.
+ */
+int dpaa2_io_service_pull_fq(struct dpaa2_io *d, u32 fqid,
+ struct dpaa2_io_store *s)
+{
+ struct qbman_pull_desc pd;
+ int err;
+
+ qbman_pull_desc_clear(&pd);
+ qbman_pull_desc_set_storage(&pd, s->vaddr, s->paddr, 1);
+ qbman_pull_desc_set_numframes(&pd, (u8)s->max);
+ qbman_pull_desc_set_fq(&pd, fqid);
+
+ d = service_select(d);
+ if (!d)
+ return -ENODEV;
+ s->swp = d->swp;
+ err = qbman_swp_pull(d->swp, &pd);
+ if (err)
+ s->swp = NULL;
+
+ return err;
+}
+EXPORT_SYMBOL(dpaa2_io_service_pull_fq);
+
+/**
+ * dpaa2_io_service_pull_channel() - pull dequeue functions from a channel.
+ * @d: the given DPIO service.
+ * @channelid: the given channel id.
+ * @s: the dpaa2_io_store object for the result.
+ *
+ * Return 0 for success, or error code for failure.
+ */
+int dpaa2_io_service_pull_channel(struct dpaa2_io *d, u32 channelid,
+ struct dpaa2_io_store *s)
+{
+ struct qbman_pull_desc pd;
+ int err;
+
+ qbman_pull_desc_clear(&pd);
+ qbman_pull_desc_set_storage(&pd, s->vaddr, s->paddr, 1);
+ qbman_pull_desc_set_numframes(&pd, (u8)s->max);
+ qbman_pull_desc_set_channel(&pd, channelid, qbman_pull_type_prio);
+
+ d = service_select(d);
+ if (!d)
+ return -ENODEV;
+
+ s->swp = d->swp;
+ err = qbman_swp_pull(d->swp, &pd);
+ if (err)
+ s->swp = NULL;
+
+ return err;
+}
+EXPORT_SYMBOL(dpaa2_io_service_pull_channel);
+
+/**
+ * dpaa2_io_service_enqueue_fq() - Enqueue a frame to a frame queue.
+ * @d: the given DPIO service.
+ * @fqid: the given frame queue id.
+ * @fd: the frame descriptor which is enqueued.
+ *
+ * Return 0 for successful enqueue, -EBUSY if the enqueue ring is not ready,
+ * or -ENODEV if there is no dpio service.
+ */
+int dpaa2_io_service_enqueue_fq(struct dpaa2_io *d,
+ u32 fqid,
+ const struct dpaa2_fd *fd)
+{
+ struct qbman_eq_desc ed;
+
+ d = service_select(d);
+ if (!d)
+ return -ENODEV;
+
+ qbman_eq_desc_clear(&ed);
+ qbman_eq_desc_set_no_orp(&ed, 0);
+ qbman_eq_desc_set_fq(&ed, fqid);
+
+ return qbman_swp_enqueue(d->swp, &ed, fd);
+}
+EXPORT_SYMBOL(dpaa2_io_service_enqueue_fq);
+
+/**
+ * dpaa2_io_service_enqueue_qd() - Enqueue a frame to a QD.
+ * @d: the given DPIO service.
+ * @qdid: the given queuing destination id.
+ * @prio: the given queuing priority.
+ * @qdbin: the given queuing destination bin.
+ * @fd: the frame descriptor which is enqueued.
+ *
+ * Return 0 for successful enqueue, or -EBUSY if the enqueue ring is not ready,
+ * or -ENODEV if there is no dpio service.
+ */
+int dpaa2_io_service_enqueue_qd(struct dpaa2_io *d,
+ u32 qdid, u8 prio, u16 qdbin,
+ const struct dpaa2_fd *fd)
+{
+ struct qbman_eq_desc ed;
+
+ d = service_select(d);
+ if (!d)
+ return -ENODEV;
+
+ qbman_eq_desc_clear(&ed);
+ qbman_eq_desc_set_no_orp(&ed, 0);
+ qbman_eq_desc_set_qd(&ed, qdid, qdbin, prio);
+
+ return qbman_swp_enqueue(d->swp, &ed, fd);
+}
+EXPORT_SYMBOL(dpaa2_io_service_enqueue_qd);
+
+/**
+ * dpaa2_io_service_release() - Release buffers to a buffer pool.
+ * @d: the given DPIO object.
+ * @bpid: the buffer pool id.
+ * @buffers: the buffers to be released.
+ * @num_buffers: the number of the buffers to be released.
+ *
+ * Return 0 for success, and negative error code for failure.
+ */
+int dpaa2_io_service_release(struct dpaa2_io *d,
+ u32 bpid,
+ const u64 *buffers,
+ unsigned int num_buffers)
+{
+ struct qbman_release_desc rd;
+
+ d = service_select(d);
+ if (!d)
+ return -ENODEV;
+
+ qbman_release_desc_clear(&rd);
+ qbman_release_desc_set_bpid(&rd, bpid);
+
+ return qbman_swp_release(d->swp, &rd, buffers, num_buffers);
+}
+EXPORT_SYMBOL(dpaa2_io_service_release);
+
+/**
+ * dpaa2_io_service_acquire() - Acquire buffers from a buffer pool.
+ * @d: the given DPIO object.
+ * @bpid: the buffer pool id.
+ * @buffers: the buffer addresses for acquired buffers.
+ * @num_buffers: the expected number of the buffers to acquire.
+ *
+ * Return a negative error code if the command failed, otherwise it returns
+ * the number of buffers acquired, which may be less than the number requested.
+ * Eg. if the buffer pool is empty, this will return zero.
+ */
+int dpaa2_io_service_acquire(struct dpaa2_io *d,
+ u32 bpid,
+ u64 *buffers,
+ unsigned int num_buffers)
+{
+ unsigned long irqflags;
+ int err;
+
+ d = service_select(d);
+ if (!d)
+ return -ENODEV;
+
+ spin_lock_irqsave(&d->lock_mgmt_cmd, irqflags);
+ err = qbman_swp_acquire(d->swp, bpid, buffers, num_buffers);
+ spin_unlock_irqrestore(&d->lock_mgmt_cmd, irqflags);
+
+ return err;
+}
+EXPORT_SYMBOL(dpaa2_io_service_acquire);
+
+/*
+ * 'Stores' are reusable memory blocks for holding dequeue results, and to
+ * assist with parsing those results.
+ */
+
+/**
+ * dpaa2_io_store_create() - Create the dma memory storage for dequeue result.
+ * @max_frames: the maximum number of dequeued result for frames, must be <= 16.
+ * @dev: the device to allow mapping/unmapping the DMAable region.
+ *
+ * The size of the storage is "max_frames*sizeof(struct dpaa2_dq)".
+ * The 'dpaa2_io_store' returned is a DPIO service managed object.
+ *
+ * Return pointer to dpaa2_io_store struct for successfuly created storage
+ * memory, or NULL on error.
+ */
+struct dpaa2_io_store *dpaa2_io_store_create(unsigned int max_frames,
+ struct device *dev)
+{
+ struct dpaa2_io_store *ret;
+ size_t size;
+
+ if (!max_frames || (max_frames > 16))
+ return NULL;
+
+ ret = kmalloc(sizeof(*ret), GFP_KERNEL);
+ if (!ret)
+ return NULL;
+
+ ret->max = max_frames;
+ size = max_frames * sizeof(struct dpaa2_dq) + 64;
+ ret->alloced_addr = kzalloc(size, GFP_KERNEL);
+ if (!ret->alloced_addr) {
+ kfree(ret);
+ return NULL;
+ }
+
+ ret->vaddr = PTR_ALIGN(ret->alloced_addr, 64);
+ ret->paddr = dma_map_single(dev, ret->vaddr,
+ sizeof(struct dpaa2_dq) * max_frames,
+ DMA_FROM_DEVICE);
+ if (dma_mapping_error(dev, ret->paddr)) {
+ kfree(ret->alloced_addr);
+ kfree(ret);
+ return NULL;
+ }
+
+ ret->idx = 0;
+ ret->dev = dev;
+
+ return ret;
+}
+EXPORT_SYMBOL(dpaa2_io_store_create);
+
+/**
+ * dpaa2_io_store_destroy() - Frees the dma memory storage for dequeue
+ * result.
+ * @s: the storage memory to be destroyed.
+ */
+void dpaa2_io_store_destroy(struct dpaa2_io_store *s)
+{
+ dma_unmap_single(s->dev, s->paddr, sizeof(struct dpaa2_dq) * s->max,
+ DMA_FROM_DEVICE);
+ kfree(s->alloced_addr);
+ kfree(s);
+}
+EXPORT_SYMBOL(dpaa2_io_store_destroy);
+
+/**
+ * dpaa2_io_store_next() - Determine when the next dequeue result is available.
+ * @s: the dpaa2_io_store object.
+ * @is_last: indicate whether this is the last frame in the pull command.
+ *
+ * When an object driver performs dequeues to a dpaa2_io_store, this function
+ * can be used to determine when the next frame result is available. Once
+ * this function returns non-NULL, a subsequent call to it will try to find
+ * the next dequeue result.
+ *
+ * Note that if a pull-dequeue has a NULL result because the target FQ/channel
+ * was empty, then this function will also return NULL (rather than expecting
+ * the caller to always check for this. As such, "is_last" can be used to
+ * differentiate between "end-of-empty-dequeue" and "still-waiting".
+ *
+ * Return dequeue result for a valid dequeue result, or NULL for empty dequeue.
+ */
+struct dpaa2_dq *dpaa2_io_store_next(struct dpaa2_io_store *s, int *is_last)
+{
+ int match;
+ struct dpaa2_dq *ret = &s->vaddr[s->idx];
+
+ match = qbman_result_has_new_result(s->swp, ret);
+ if (!match) {
+ *is_last = 0;
+ return NULL;
+ }
+
+ s->idx++;
+
+ if (dpaa2_dq_is_pull_complete(ret)) {
+ *is_last = 1;
+ s->idx = 0;
+ /*
+ * If we get an empty dequeue result to terminate a zero-results
+ * vdqcr, return NULL to the caller rather than expecting him to
+ * check non-NULL results every time.
+ */
+ if (!(dpaa2_dq_flags(ret) & DPAA2_DQ_STAT_VALIDFRAME))
+ ret = NULL;
+ } else {
+ *is_last = 0;
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL(dpaa2_io_store_next);
+
+#ifdef CONFIG_FSL_QBMAN_DEBUG
+/**
+ * dpaa2_io_query_fq_count() - Get the frame and byte count for a given fq.
+ * @d: the given DPIO object.
+ * @fqid: the id of frame queue to be queried.
+ * @fcnt: the queried frame count.
+ * @bcnt: the queried byte count.
+ *
+ * Knowing the FQ count at run-time can be useful in debugging situations.
+ * The instantaneous frame- and byte-count are hereby returned.
+ *
+ * Return 0 for a successful query, and negative error code if query fails.
+ */
+int dpaa2_io_query_fq_count(struct dpaa2_io *d, uint32_t fqid,
+ u32 *fcnt, u32 *bcnt)
+{
+ struct qbman_attr state;
+ struct qbman_swp *swp;
+ unsigned long irqflags;
+ int ret;
+
+ d = service_select(d);
+ if (!d)
+ return -ENODEV;
+
+ swp = d->swp;
+ spin_lock_irqsave(&d->lock_mgmt_cmd, irqflags);
+ ret = qbman_fq_query_state(swp, fqid, &state);
+ spin_unlock_irqrestore(&d->lock_mgmt_cmd, irqflags);
+ if (ret)
+ return ret;
+ *fcnt = qbman_fq_state_frame_count(&state);
+ *bcnt = qbman_fq_state_byte_count(&state);
+
+ return 0;
+}
+EXPORT_SYMBOL(dpaa2_io_query_fq_count);
+
+/**
+ * dpaa2_io_query_bp_count() - Query the number of buffers currenty in a
+ * buffer pool.
+ * @d: the given DPIO object.
+ * @bpid: the index of buffer pool to be queried.
+ * @num: the queried number of buffers in the buffer pool.
+ *
+ * Return 0 for a sucessful query, and negative error code if query fails.
+ */
+int dpaa2_io_query_bp_count(struct dpaa2_io *d, uint32_t bpid, u32 *num)
+{
+ struct qbman_attr state;
+ struct qbman_swp *swp;
+ unsigned long irqflags;
+ int ret;
+
+ d = service_select(d);
+ if (!d)
+ return -ENODEV;
+
+ swp = d->swp;
+ spin_lock_irqsave(&d->lock_mgmt_cmd, irqflags);
+ ret = qbman_bp_query(swp, bpid, &state);
+ spin_unlock_irqrestore(&d->lock_mgmt_cmd, irqflags);
+ if (ret)
+ return ret;
+ *num = qbman_bp_info_num_free_bufs(&state);
+ return 0;
+}
+EXPORT_SYMBOL(dpaa2_io_query_bp_count);
+#endif
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/dpio/dpio.c
@@ -0,0 +1,224 @@
+/*
+ * Copyright 2013-2016 Freescale Semiconductor Inc.
+ * Copyright 2016 NXP
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#include "../../include/mc-sys.h"
+#include "../../include/mc-cmd.h"
+
+#include "dpio.h"
+#include "dpio-cmd.h"
+
+/*
+ * Data Path I/O Portal API
+ * Contains initialization APIs and runtime control APIs for DPIO
+ */
+
+/**
+ * dpio_open() - Open a control session for the specified object
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @dpio_id: DPIO unique ID
+ * @token: Returned token; use in subsequent API calls
+ *
+ * This function can be used to open a control session for an
+ * already created object; an object may have been declared in
+ * the DPL or by calling the dpio_create() function.
+ * This function returns a unique authentication token,
+ * associated with the specific object ID and the specific MC
+ * portal; this token must be used in all subsequent commands for
+ * this specific object.
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpio_open(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ int dpio_id,
+ u16 *token)
+{
+ struct mc_command cmd = { 0 };
+ struct dpio_cmd_open *dpio_cmd;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPIO_CMDID_OPEN,
+ cmd_flags,
+ 0);
+ dpio_cmd = (struct dpio_cmd_open *)cmd.params;
+ dpio_cmd->dpio_id = cpu_to_le32(dpio_id);
+
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ *token = mc_cmd_hdr_read_token(&cmd);
+
+ return 0;
+}
+
+/**
+ * dpio_close() - Close the control session of the object
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPIO object
+ *
+ * Return: '0' on Success; Error code otherwise.
+ */
+int dpio_close(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPIO_CMDID_CLOSE,
+ cmd_flags,
+ token);
+
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpio_enable() - Enable the DPIO, allow I/O portal operations.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPIO object
+ *
+ * Return: '0' on Success; Error code otherwise
+ */
+int dpio_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPIO_CMDID_ENABLE,
+ cmd_flags,
+ token);
+
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpio_disable() - Disable the DPIO, stop any I/O portal operation.
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPIO object
+ *
+ * Return: '0' on Success; Error code otherwise
+ */
+int dpio_disable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token)
+{
+ struct mc_command cmd = { 0 };
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPIO_CMDID_DISABLE,
+ cmd_flags,
+ token);
+
+ return mc_send_command(mc_io, &cmd);
+}
+
+/**
+ * dpio_get_attributes() - Retrieve DPIO attributes
+ * @mc_io: Pointer to MC portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @token: Token of DPIO object
+ * @attr: Returned object's attributes
+ *
+ * Return: '0' on Success; Error code otherwise
+ */
+int dpio_get_attributes(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpio_attr *attr)
+{
+ struct mc_command cmd = { 0 };
+ struct dpio_rsp_get_attr *dpio_rsp;
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPIO_CMDID_GET_ATTR,
+ cmd_flags,
+ token);
+
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ dpio_rsp = (struct dpio_rsp_get_attr *)cmd.params;
+ attr->id = le32_to_cpu(dpio_rsp->id);
+ attr->qbman_portal_id = le16_to_cpu(dpio_rsp->qbman_portal_id);
+ attr->num_priorities = dpio_rsp->num_priorities;
+ attr->channel_mode = dpio_rsp->channel_mode & DPIO_CHANNEL_MODE_MASK;
+ attr->qbman_portal_ce_offset =
+ le64_to_cpu(dpio_rsp->qbman_portal_ce_addr);
+ attr->qbman_portal_ci_offset =
+ le64_to_cpu(dpio_rsp->qbman_portal_ci_addr);
+ attr->qbman_version = le32_to_cpu(dpio_rsp->qbman_version);
+
+ return 0;
+}
+
+/**
+ * dpio_get_api_version - Get Data Path I/O API version
+ * @mc_io: Pointer to MC portal's DPIO object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @major_ver: Major version of DPIO API
+ * @minor_ver: Minor version of DPIO API
+ *
+ * Return: '0' on Success; Error code otherwise
+ */
+int dpio_get_api_version(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 *major_ver,
+ u16 *minor_ver)
+{
+ struct mc_command cmd = { 0 };
+ int err;
+
+ /* prepare command */
+ cmd.header = mc_encode_cmd_header(DPIO_CMDID_GET_API_VERSION,
+ cmd_flags, 0);
+
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
+
+ /* retrieve response parameters */
+ mc_cmd_read_api_version(&cmd, major_ver, minor_ver);
+
+ return 0;
+}
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/dpio/dpio.h
@@ -0,0 +1,109 @@
+/*
+ * Copyright 2013-2016 Freescale Semiconductor Inc.
+ * Copyright 2016 NXP
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __FSL_DPIO_H
+#define __FSL_DPIO_H
+
+struct fsl_mc_io;
+
+int dpio_open(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ int dpio_id,
+ u16 *token);
+
+int dpio_close(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+/**
+ * enum dpio_channel_mode - DPIO notification channel mode
+ * @DPIO_NO_CHANNEL: No support for notification channel
+ * @DPIO_LOCAL_CHANNEL: Notifications on data availability can be received by a
+ * dedicated channel in the DPIO; user should point the queue's
+ * destination in the relevant interface to this DPIO
+ */
+enum dpio_channel_mode {
+ DPIO_NO_CHANNEL = 0,
+ DPIO_LOCAL_CHANNEL = 1,
+};
+
+/**
+ * struct dpio_cfg - Structure representing DPIO configuration
+ * @channel_mode: Notification channel mode
+ * @num_priorities: Number of priorities for the notification channel (1-8);
+ * relevant only if 'channel_mode = DPIO_LOCAL_CHANNEL'
+ */
+struct dpio_cfg {
+ enum dpio_channel_mode channel_mode;
+ u8 num_priorities;
+};
+
+int dpio_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+int dpio_disable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+/**
+ * struct dpio_attr - Structure representing DPIO attributes
+ * @id: DPIO object ID
+ * @qbman_portal_ce_offset: offset of the software portal cache-enabled area
+ * @qbman_portal_ci_offset: offset of the software portal cache-inhibited area
+ * @qbman_portal_id: Software portal ID
+ * @channel_mode: Notification channel mode
+ * @num_priorities: Number of priorities for the notification channel (1-8);
+ * relevant only if 'channel_mode = DPIO_LOCAL_CHANNEL'
+ * @qbman_version: QBMAN version
+ */
+struct dpio_attr {
+ int id;
+ u64 qbman_portal_ce_offset;
+ u64 qbman_portal_ci_offset;
+ u16 qbman_portal_id;
+ enum dpio_channel_mode channel_mode;
+ u8 num_priorities;
+ u32 qbman_version;
+};
+
+int dpio_get_attributes(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpio_attr *attr);
+
+int dpio_get_api_version(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 *major_ver,
+ u16 *minor_ver);
+
+#endif /* __FSL_DPIO_H */
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/dpio/qbman-portal.c
@@ -0,0 +1,1049 @@
+/*
+ * Copyright (C) 2014-2016 Freescale Semiconductor, Inc.
+ * Copyright 2016 NXP
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <asm/cacheflush.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include "../../include/dpaa2-global.h"
+
+#include "qbman-portal.h"
+
+struct qb_attr_code code_generic_verb = QB_CODE(0, 0, 7);
+struct qb_attr_code code_generic_rslt = QB_CODE(0, 8, 8);
+
+#define QMAN_REV_4000 0x04000000
+#define QMAN_REV_4100 0x04010000
+#define QMAN_REV_4101 0x04010001
+#define QMAN_REV_MASK 0xffff0000
+
+/* All QBMan command and result structures use this "valid bit" encoding */
+#define QB_VALID_BIT ((u32)0x80)
+
+/* QBMan portal management command codes */
+#define QBMAN_MC_ACQUIRE 0x30
+#define QBMAN_WQCHAN_CONFIGURE 0x46
+
+/* CINH register offsets */
+#define QBMAN_CINH_SWP_EQAR 0x8c0
+#define QBMAN_CINH_SWP_DQPI 0xa00
+#define QBMAN_CINH_SWP_DCAP 0xac0
+#define QBMAN_CINH_SWP_SDQCR 0xb00
+#define QBMAN_CINH_SWP_RAR 0xcc0
+#define QBMAN_CINH_SWP_ISR 0xe00
+#define QBMAN_CINH_SWP_IER 0xe40
+#define QBMAN_CINH_SWP_ISDR 0xe80
+#define QBMAN_CINH_SWP_IIR 0xec0
+
+/* CENA register offsets */
+#define QBMAN_CENA_SWP_EQCR(n) (0x000 + ((u32)(n) << 6))
+#define QBMAN_CENA_SWP_DQRR(n) (0x200 + ((u32)(n) << 6))
+#define QBMAN_CENA_SWP_RCR(n) (0x400 + ((u32)(n) << 6))
+#define QBMAN_CENA_SWP_CR 0x600
+#define QBMAN_CENA_SWP_RR(vb) (0x700 + ((u32)(vb) >> 1))
+#define QBMAN_CENA_SWP_VDQCR 0x780
+
+/* Reverse mapping of QBMAN_CENA_SWP_DQRR() */
+#define QBMAN_IDX_FROM_DQRR(p) (((unsigned long)(p) & 0x1ff) >> 6)
+
+/* Define token used to determine if response written to memory is valid */
+#define QMAN_DQ_TOKEN_VALID 1
+
+/* SDQCR attribute codes */
+#define QB_SDQCR_FC_SHIFT 29
+#define QB_SDQCR_FC_MASK 0x1
+#define QB_SDQCR_DCT_SHIFT 24
+#define QB_SDQCR_DCT_MASK 0x3
+#define QB_SDQCR_TOK_SHIFT 16
+#define QB_SDQCR_TOK_MASK 0xff
+#define QB_SDQCR_SRC_SHIFT 0
+#define QB_SDQCR_SRC_MASK 0xffff
+
+/* opaque token for static dequeues */
+#define QMAN_SDQCR_TOKEN 0xbb
+
+enum qbman_sdqcr_dct {
+ qbman_sdqcr_dct_null = 0,
+ qbman_sdqcr_dct_prio_ics,
+ qbman_sdqcr_dct_active_ics,
+ qbman_sdqcr_dct_active
+};
+
+enum qbman_sdqcr_fc {
+ qbman_sdqcr_fc_one = 0,
+ qbman_sdqcr_fc_up_to_3 = 1
+};
+
+#define dccvac(p) { asm volatile("dc cvac, %0;" : : "r" (p) : "memory"); }
+#define dcivac(p) { asm volatile("dc ivac, %0" : : "r"(p) : "memory"); }
+static inline void qbman_inval_prefetch(struct qbman_swp *p, uint32_t offset)
+{
+ dcivac(p->addr_cena + offset);
+ prefetch(p->addr_cena + offset);
+}
+
+/* Portal Access */
+
+static inline u32 qbman_read_register(struct qbman_swp *p, u32 offset)
+{
+ return readl_relaxed(p->addr_cinh + offset);
+}
+
+static inline void qbman_write_register(struct qbman_swp *p, u32 offset,
+ u32 value)
+{
+ writel_relaxed(value, p->addr_cinh + offset);
+}
+
+static inline void *qbman_get_cmd(struct qbman_swp *p, u32 offset)
+{
+ return p->addr_cena + offset;
+}
+
+#define QBMAN_CINH_SWP_CFG 0xd00
+
+#define SWP_CFG_DQRR_MF_SHIFT 20
+#define SWP_CFG_EST_SHIFT 16
+#define SWP_CFG_WN_SHIFT 14
+#define SWP_CFG_RPM_SHIFT 12
+#define SWP_CFG_DCM_SHIFT 10
+#define SWP_CFG_EPM_SHIFT 8
+#define SWP_CFG_SD_SHIFT 5
+#define SWP_CFG_SP_SHIFT 4
+#define SWP_CFG_SE_SHIFT 3
+#define SWP_CFG_DP_SHIFT 2
+#define SWP_CFG_DE_SHIFT 1
+#define SWP_CFG_EP_SHIFT 0
+
+static inline u32 qbman_set_swp_cfg(u8 max_fill, u8 wn, u8 est, u8 rpm, u8 dcm,
+ u8 epm, int sd, int sp, int se,
+ int dp, int de, int ep)
+{
+ return cpu_to_le32 (max_fill << SWP_CFG_DQRR_MF_SHIFT |
+ est << SWP_CFG_EST_SHIFT |
+ wn << SWP_CFG_WN_SHIFT |
+ rpm << SWP_CFG_RPM_SHIFT |
+ dcm << SWP_CFG_DCM_SHIFT |
+ epm << SWP_CFG_EPM_SHIFT |
+ sd << SWP_CFG_SD_SHIFT |
+ sp << SWP_CFG_SP_SHIFT |
+ se << SWP_CFG_SE_SHIFT |
+ dp << SWP_CFG_DP_SHIFT |
+ de << SWP_CFG_DE_SHIFT |
+ ep << SWP_CFG_EP_SHIFT);
+}
+
+/**
+ * qbman_swp_init() - Create a functional object representing the given
+ * QBMan portal descriptor.
+ * @d: the given qbman swp descriptor
+ *
+ * Return qbman_swp portal for success, NULL if the object cannot
+ * be created.
+ */
+struct qbman_swp *qbman_swp_init(const struct qbman_swp_desc *d)
+{
+ struct qbman_swp *p = kmalloc(sizeof(*p), GFP_KERNEL);
+ u32 reg;
+
+ if (!p)
+ return NULL;
+ p->desc = d;
+ p->mc.valid_bit = QB_VALID_BIT;
+ p->sdq = 0;
+ p->sdq |= qbman_sdqcr_dct_prio_ics << QB_SDQCR_DCT_SHIFT;
+ p->sdq |= qbman_sdqcr_fc_up_to_3 << QB_SDQCR_FC_SHIFT;
+ p->sdq |= QMAN_SDQCR_TOKEN << QB_SDQCR_TOK_SHIFT;
+
+ atomic_set(&p->vdq.available, 1);
+ p->vdq.valid_bit = QB_VALID_BIT;
+ p->dqrr.next_idx = 0;
+ p->dqrr.valid_bit = QB_VALID_BIT;
+
+ if ((p->desc->qman_version & QMAN_REV_MASK) < QMAN_REV_4100) {
+ p->dqrr.dqrr_size = 4;
+ p->dqrr.reset_bug = 1;
+ } else {
+ p->dqrr.dqrr_size = 8;
+ p->dqrr.reset_bug = 0;
+ }
+
+ p->addr_cena = d->cena_bar;
+ p->addr_cinh = d->cinh_bar;
+
+ reg = qbman_set_swp_cfg(p->dqrr.dqrr_size,
+ 0, /* Writes cacheable */
+ 0, /* EQCR_CI stashing threshold */
+ 3, /* RPM: Valid bit mode, RCR in array mode */
+ 2, /* DCM: Discrete consumption ack mode */
+ 3, /* EPM: Valid bit mode, EQCR in array mode */
+ 0, /* mem stashing drop enable == FALSE */
+ 1, /* mem stashing priority == TRUE */
+ 0, /* mem stashing enable == FALSE */
+ 1, /* dequeue stashing priority == TRUE */
+ 0, /* dequeue stashing enable == FALSE */
+ 0); /* EQCR_CI stashing priority == FALSE */
+
+ qbman_write_register(p, QBMAN_CINH_SWP_CFG, reg);
+ reg = qbman_read_register(p, QBMAN_CINH_SWP_CFG);
+ if (!reg) {
+ pr_err("qbman: the portal is not enabled!\n");
+ return NULL;
+ }
+
+ /*
+ * SDQCR needs to be initialized to 0 when no channels are
+ * being dequeued from or else the QMan HW will indicate an
+ * error. The values that were calculated above will be
+ * applied when dequeues from a specific channel are enabled.
+ */
+ qbman_write_register(p, QBMAN_CINH_SWP_SDQCR, 0);
+ return p;
+}
+
+/**
+ * qbman_swp_finish() - Create and destroy a functional object representing
+ * the given QBMan portal descriptor.
+ * @p: the qbman_swp object to be destroyed
+ */
+void qbman_swp_finish(struct qbman_swp *p)
+{
+ kfree(p);
+}
+
+/**
+ * qbman_swp_interrupt_read_status()
+ * @p: the given software portal
+ *
+ * Return the value in the SWP_ISR register.
+ */
+u32 qbman_swp_interrupt_read_status(struct qbman_swp *p)
+{
+ return qbman_read_register(p, QBMAN_CINH_SWP_ISR);
+}
+
+/**
+ * qbman_swp_interrupt_clear_status()
+ * @p: the given software portal
+ * @mask: The mask to clear in SWP_ISR register
+ */
+void qbman_swp_interrupt_clear_status(struct qbman_swp *p, u32 mask)
+{
+ qbman_write_register(p, QBMAN_CINH_SWP_ISR, mask);
+}
+
+/**
+ * qbman_swp_interrupt_get_trigger() - read interrupt enable register
+ * @p: the given software portal
+ *
+ * Return the value in the SWP_IER register.
+ */
+u32 qbman_swp_interrupt_get_trigger(struct qbman_swp *p)
+{
+ return qbman_read_register(p, QBMAN_CINH_SWP_IER);
+}
+
+/**
+ * qbman_swp_interrupt_set_trigger() - enable interrupts for a swp
+ * @p: the given software portal
+ * @mask: The mask of bits to enable in SWP_IER
+ */
+void qbman_swp_interrupt_set_trigger(struct qbman_swp *p, u32 mask)
+{
+ qbman_write_register(p, QBMAN_CINH_SWP_IER, mask);
+}
+
+/**
+ * qbman_swp_interrupt_get_inhibit() - read interrupt mask register
+ * @p: the given software portal object
+ *
+ * Return the value in the SWP_IIR register.
+ */
+int qbman_swp_interrupt_get_inhibit(struct qbman_swp *p)
+{
+ return qbman_read_register(p, QBMAN_CINH_SWP_IIR);
+}
+
+/**
+ * qbman_swp_interrupt_set_inhibit() - write interrupt mask register
+ * @p: the given software portal object
+ * @mask: The mask to set in SWP_IIR register
+ */
+void qbman_swp_interrupt_set_inhibit(struct qbman_swp *p, int inhibit)
+{
+ qbman_write_register(p, QBMAN_CINH_SWP_IIR, inhibit ? 0xffffffff : 0);
+}
+
+/*
+ * Different management commands all use this common base layer of code to issue
+ * commands and poll for results.
+ */
+
+/*
+ * Returns a pointer to where the caller should fill in their management command
+ * (caller should ignore the verb byte)
+ */
+void *qbman_swp_mc_start(struct qbman_swp *p)
+{
+ return qbman_get_cmd(p, QBMAN_CENA_SWP_CR);
+}
+
+/*
+ * Commits merges in the caller-supplied command verb (which should not include
+ * the valid-bit) and submits the command to hardware
+ */
+void qbman_swp_mc_submit(struct qbman_swp *p, void *cmd, u8 cmd_verb)
+{
+ u8 *v = cmd;
+
+ dma_wmb();
+ *v = cmd_verb | p->mc.valid_bit;
+ dccvac(cmd);
+}
+
+/*
+ * Checks for a completed response (returns non-NULL if only if the response
+ * is complete).
+ */
+void *qbman_swp_mc_result(struct qbman_swp *p)
+{
+ u32 *ret, verb;
+
+ qbman_inval_prefetch(p, QBMAN_CENA_SWP_RR(p->mc.valid_bit));
+ ret = qbman_get_cmd(p, QBMAN_CENA_SWP_RR(p->mc.valid_bit));
+
+ /* Remove the valid-bit - command completed if the rest is non-zero */
+ verb = ret[0] & ~QB_VALID_BIT;
+ if (!verb)
+ return NULL;
+ p->mc.valid_bit ^= QB_VALID_BIT;
+ return ret;
+}
+
+#define QB_ENQUEUE_CMD_OPTIONS_SHIFT 0
+enum qb_enqueue_commands {
+ enqueue_empty = 0,
+ enqueue_response_always = 1,
+ enqueue_rejects_to_fq = 2
+};
+
+#define QB_ENQUEUE_CMD_ORP_ENABLE_SHIFT 2
+#define QB_ENQUEUE_CMD_IRQ_ON_DISPATCH_SHIFT 3
+#define QB_ENQUEUE_CMD_TARGET_TYPE_SHIFT 4
+
+/**
+ * qbman_eq_desc_clear() - Clear the contents of a descriptor to
+ * default/starting state.
+ */
+void qbman_eq_desc_clear(struct qbman_eq_desc *d)
+{
+ memset(d, 0, sizeof(*d));
+}
+
+/**
+ * qbman_eq_desc_set_no_orp() - Set enqueue descriptor without orp
+ * @d: the enqueue descriptor.
+ * @response_success: 1 = enqueue with response always; 0 = enqueue with
+ * rejections returned on a FQ.
+ */
+void qbman_eq_desc_set_no_orp(struct qbman_eq_desc *d, int respond_success)
+{
+ d->verb &= ~(1 << QB_ENQUEUE_CMD_ORP_ENABLE_SHIFT);
+ if (respond_success)
+ d->verb |= enqueue_response_always;
+ else
+ d->verb |= enqueue_rejects_to_fq;
+}
+
+/*
+ * Exactly one of the following descriptor "targets" should be set. (Calling any
+ * one of these will replace the effect of any prior call to one of these.)
+ * -enqueue to a frame queue
+ * -enqueue to a queuing destination
+ */
+
+/**
+ * qbman_eq_desc_set_fq() - set the FQ for the enqueue command
+ * @d: the enqueue descriptor
+ * @fqid: the id of the frame queue to be enqueued
+ */
+void qbman_eq_desc_set_fq(struct qbman_eq_desc *d, u32 fqid)
+{
+ d->verb &= ~(1 << QB_ENQUEUE_CMD_TARGET_TYPE_SHIFT);
+ d->tgtid = cpu_to_le32(fqid);
+}
+
+/**
+ * qbman_eq_desc_set_qd() - Set Queuing Destination for the enqueue command
+ * @d: the enqueue descriptor
+ * @qdid: the id of the queuing destination to be enqueued
+ * @qd_bin: the queuing destination bin
+ * @qd_prio: the queuing destination priority
+ */
+void qbman_eq_desc_set_qd(struct qbman_eq_desc *d, u32 qdid,
+ u32 qd_bin, u32 qd_prio)
+{
+ d->verb |= 1 << QB_ENQUEUE_CMD_TARGET_TYPE_SHIFT;
+ d->tgtid = cpu_to_le32(qdid);
+ d->qdbin = cpu_to_le16(qd_bin);
+ d->qpri = qd_prio;
+}
+
+#define EQAR_IDX(eqar) ((eqar) & 0x7)
+#define EQAR_VB(eqar) ((eqar) & 0x80)
+#define EQAR_SUCCESS(eqar) ((eqar) & 0x100)
+
+/**
+ * qbman_swp_enqueue() - Issue an enqueue command
+ * @s: the software portal used for enqueue
+ * @d: the enqueue descriptor
+ * @fd: the frame descriptor to be enqueued
+ *
+ * Please note that 'fd' should only be NULL if the "action" of the
+ * descriptor is "orp_hole" or "orp_nesn".
+ *
+ * Return 0 for successful enqueue, -EBUSY if the EQCR is not ready.
+ */
+int qbman_swp_enqueue(struct qbman_swp *s, const struct qbman_eq_desc *d,
+ const struct dpaa2_fd *fd)
+{
+ struct qbman_eq_desc *p;
+ u32 eqar = qbman_read_register(s, QBMAN_CINH_SWP_EQAR);
+
+ if (!EQAR_SUCCESS(eqar))
+ return -EBUSY;
+
+ p = qbman_get_cmd(s, QBMAN_CENA_SWP_EQCR(EQAR_IDX(eqar)));
+ memcpy(&p->dca, &d->dca, 31);
+ memcpy(&p->fd, fd, sizeof(*fd));
+
+ /* Set the verb byte, have to substitute in the valid-bit */
+ dma_wmb();
+ p->verb = d->verb | EQAR_VB(eqar);
+ dccvac(p);
+
+ return 0;
+}
+
+/* Static (push) dequeue */
+
+/**
+ * qbman_swp_push_get() - Get the push dequeue setup
+ * @p: the software portal object
+ * @channel_idx: the channel index to query
+ * @enabled: returned boolean to show whether the push dequeue is enabled
+ * for the given channel
+ */
+void qbman_swp_push_get(struct qbman_swp *s, u8 channel_idx, int *enabled)
+{
+ u16 src = (s->sdq >> QB_SDQCR_SRC_SHIFT) & QB_SDQCR_SRC_MASK;
+
+ WARN_ON(channel_idx > 15);
+ *enabled = src | (1 << channel_idx);
+}
+
+/**
+ * qbman_swp_push_set() - Enable or disable push dequeue
+ * @p: the software portal object
+ * @channel_idx: the channel index (0 to 15)
+ * @enable: enable or disable push dequeue
+ */
+void qbman_swp_push_set(struct qbman_swp *s, u8 channel_idx, int enable)
+{
+ u16 dqsrc;
+
+ WARN_ON(channel_idx > 15);
+ if (enable)
+ s->sdq |= 1 << channel_idx;
+ else
+ s->sdq &= ~(1 << channel_idx);
+
+ /* Read make the complete src map. If no channels are enabled
+ * the SDQCR must be 0 or else QMan will assert errors
+ */
+ dqsrc = (s->sdq >> QB_SDQCR_SRC_SHIFT) & QB_SDQCR_SRC_MASK;
+ if (dqsrc != 0)
+ qbman_write_register(s, QBMAN_CINH_SWP_SDQCR, s->sdq);
+ else
+ qbman_write_register(s, QBMAN_CINH_SWP_SDQCR, 0);
+}
+
+#define QB_VDQCR_VERB_DCT_SHIFT 0
+#define QB_VDQCR_VERB_DT_SHIFT 2
+#define QB_VDQCR_VERB_RLS_SHIFT 4
+#define QB_VDQCR_VERB_WAE_SHIFT 5
+
+enum qb_pull_dt_e {
+ qb_pull_dt_channel,
+ qb_pull_dt_workqueue,
+ qb_pull_dt_framequeue
+};
+
+/**
+ * qbman_pull_desc_clear() - Clear the contents of a descriptor to
+ * default/starting state
+ * @d: the pull dequeue descriptor to be cleared
+ */
+void qbman_pull_desc_clear(struct qbman_pull_desc *d)
+{
+ memset(d, 0, sizeof(*d));
+}
+
+/**
+ * qbman_pull_desc_set_storage()- Set the pull dequeue storage
+ * @d: the pull dequeue descriptor to be set
+ * @storage: the pointer of the memory to store the dequeue result
+ * @storage_phys: the physical address of the storage memory
+ * @stash: to indicate whether write allocate is enabled
+ *
+ * If not called, or if called with 'storage' as NULL, the result pull dequeues
+ * will produce results to DQRR. If 'storage' is non-NULL, then results are
+ * produced to the given memory location (using the DMA address which
+ * the caller provides in 'storage_phys'), and 'stash' controls whether or not
+ * those writes to main-memory express a cache-warming attribute.
+ */
+void qbman_pull_desc_set_storage(struct qbman_pull_desc *d,
+ struct dpaa2_dq *storage,
+ dma_addr_t storage_phys,
+ int stash)
+{
+ /* save the virtual address */
+ d->rsp_addr_virt = (u64)storage;
+
+ if (!storage) {
+ d->verb &= ~(1 << QB_VDQCR_VERB_RLS_SHIFT);
+ return;
+ }
+ d->verb |= 1 << QB_VDQCR_VERB_RLS_SHIFT;
+ if (stash)
+ d->verb |= 1 << QB_VDQCR_VERB_WAE_SHIFT;
+ else
+ d->verb &= ~(1 << QB_VDQCR_VERB_WAE_SHIFT);
+
+ d->rsp_addr = cpu_to_le64(storage_phys);
+}
+
+/**
+ * qbman_pull_desc_set_numframes() - Set the number of frames to be dequeued
+ * @d: the pull dequeue descriptor to be set
+ * @numframes: number of frames to be set, must be between 1 and 16, inclusive
+ */
+void qbman_pull_desc_set_numframes(struct qbman_pull_desc *d, u8 numframes)
+{
+ d->numf = numframes - 1;
+}
+
+void qbman_pull_desc_set_token(struct qbman_pull_desc *d, u8 token)
+{
+ d->tok = token;
+}
+
+/*
+ * Exactly one of the following descriptor "actions" should be set. (Calling any
+ * one of these will replace the effect of any prior call to one of these.)
+ * - pull dequeue from the given frame queue (FQ)
+ * - pull dequeue from any FQ in the given work queue (WQ)
+ * - pull dequeue from any FQ in any WQ in the given channel
+ */
+
+/**
+ * qbman_pull_desc_set_fq() - Set fqid from which the dequeue command dequeues
+ * @fqid: the frame queue index of the given FQ
+ */
+void qbman_pull_desc_set_fq(struct qbman_pull_desc *d, u32 fqid)
+{
+ d->verb |= 1 << QB_VDQCR_VERB_DCT_SHIFT;
+ d->verb |= qb_pull_dt_framequeue << QB_VDQCR_VERB_DT_SHIFT;
+ d->dq_src = cpu_to_le32(fqid);
+}
+
+/**
+ * qbman_pull_desc_set_wq() - Set wqid from which the dequeue command dequeues
+ * @wqid: composed of channel id and wqid within the channel
+ * @dct: the dequeue command type
+ */
+void qbman_pull_desc_set_wq(struct qbman_pull_desc *d, u32 wqid,
+ enum qbman_pull_type_e dct)
+{
+ d->verb |= dct << QB_VDQCR_VERB_DCT_SHIFT;
+ d->verb |= qb_pull_dt_workqueue << QB_VDQCR_VERB_DT_SHIFT;
+ d->dq_src = cpu_to_le32(wqid);
+}
+
+/**
+ * qbman_pull_desc_set_channel() - Set channelid from which the dequeue command
+ * dequeues
+ * @chid: the channel id to be dequeued
+ * @dct: the dequeue command type
+ */
+void qbman_pull_desc_set_channel(struct qbman_pull_desc *d, u32 chid,
+ enum qbman_pull_type_e dct)
+{
+ d->verb |= dct << QB_VDQCR_VERB_DCT_SHIFT;
+ d->verb |= qb_pull_dt_channel << QB_VDQCR_VERB_DT_SHIFT;
+ d->dq_src = cpu_to_le32(chid);
+}
+
+/**
+ * qbman_swp_pull() - Issue the pull dequeue command
+ * @s: the software portal object
+ * @d: the software portal descriptor which has been configured with
+ * the set of qbman_pull_desc_set_*() calls
+ *
+ * Return 0 for success, and -EBUSY if the software portal is not ready
+ * to do pull dequeue.
+ */
+int qbman_swp_pull(struct qbman_swp *s, struct qbman_pull_desc *d)
+{
+ struct qbman_pull_desc *p;
+
+ if (!atomic_dec_and_test(&s->vdq.available)) {
+ atomic_inc(&s->vdq.available);
+ return -EBUSY;
+ }
+ s->vdq.storage = (void *)d->rsp_addr_virt;
+ p = qbman_get_cmd(s, QBMAN_CENA_SWP_VDQCR);
+ p->numf = d->numf;
+ p->tok = QMAN_DQ_TOKEN_VALID;
+ p->dq_src = d->dq_src;
+ p->rsp_addr = d->rsp_addr;
+ p->rsp_addr_virt = d->rsp_addr_virt;
+ dma_wmb();
+
+ /* Set the verb byte, have to substitute in the valid-bit */
+ p->verb = d->verb | s->vdq.valid_bit;
+ s->vdq.valid_bit ^= QB_VALID_BIT;
+ dccvac(p);
+
+ return 0;
+}
+
+#define QMAN_DQRR_PI_MASK 0xf
+
+/**
+ * qbman_swp_dqrr_next() - Get an valid DQRR entry
+ * @s: the software portal object
+ *
+ * Return NULL if there are no unconsumed DQRR entries. Return a DQRR entry
+ * only once, so repeated calls can return a sequence of DQRR entries, without
+ * requiring they be consumed immediately or in any particular order.
+ */
+const struct dpaa2_dq *qbman_swp_dqrr_next(struct qbman_swp *s)
+{
+ u32 verb;
+ u32 response_verb;
+ u32 flags;
+ struct dpaa2_dq *p;
+
+ /* Before using valid-bit to detect if something is there, we have to
+ * handle the case of the DQRR reset bug...
+ */
+ if (unlikely(s->dqrr.reset_bug)) {
+ /*
+ * We pick up new entries by cache-inhibited producer index,
+ * which means that a non-coherent mapping would require us to
+ * invalidate and read *only* once that PI has indicated that
+ * there's an entry here. The first trip around the DQRR ring
+ * will be much less efficient than all subsequent trips around
+ * it...
+ */
+ u8 pi = qbman_read_register(s, QBMAN_CINH_SWP_DQPI) &
+ QMAN_DQRR_PI_MASK;
+
+ /* there are new entries if pi != next_idx */
+ if (pi == s->dqrr.next_idx)
+ return NULL;
+
+ /*
+ * if next_idx is/was the last ring index, and 'pi' is
+ * different, we can disable the workaround as all the ring
+ * entries have now been DMA'd to so valid-bit checking is
+ * repaired. Note: this logic needs to be based on next_idx
+ * (which increments one at a time), rather than on pi (which
+ * can burst and wrap-around between our snapshots of it).
+ */
+ if (s->dqrr.next_idx == (s->dqrr.dqrr_size - 1)) {
+ pr_debug("next_idx=%d, pi=%d, clear reset bug\n",
+ s->dqrr.next_idx, pi);
+ s->dqrr.reset_bug = 0;
+ }
+ qbman_inval_prefetch(s, QBMAN_CENA_SWP_DQRR(s->dqrr.next_idx));
+ }
+
+ p = qbman_get_cmd(s, QBMAN_CENA_SWP_DQRR(s->dqrr.next_idx));
+ verb = p->dq.verb;
+
+ /*
+ * If the valid-bit isn't of the expected polarity, nothing there. Note,
+ * in the DQRR reset bug workaround, we shouldn't need to skip these
+ * check, because we've already determined that a new entry is available
+ * and we've invalidated the cacheline before reading it, so the
+ * valid-bit behaviour is repaired and should tell us what we already
+ * knew from reading PI.
+ */
+ if ((verb & QB_VALID_BIT) != s->dqrr.valid_bit) {
+ qbman_inval_prefetch(s, QBMAN_CENA_SWP_DQRR(s->dqrr.next_idx));
+ return NULL;
+ }
+ /*
+ * There's something there. Move "next_idx" attention to the next ring
+ * entry (and prefetch it) before returning what we found.
+ */
+ s->dqrr.next_idx++;
+ s->dqrr.next_idx &= s->dqrr.dqrr_size - 1; /* Wrap around */
+ if (!s->dqrr.next_idx)
+ s->dqrr.valid_bit ^= QB_VALID_BIT;
+
+ /*
+ * If this is the final response to a volatile dequeue command
+ * indicate that the vdq is available
+ */
+ flags = p->dq.stat;
+ response_verb = verb & QBMAN_RESULT_MASK;
+ if ((response_verb == QBMAN_RESULT_DQ) &&
+ (flags & DPAA2_DQ_STAT_VOLATILE) &&
+ (flags & DPAA2_DQ_STAT_EXPIRED))
+ atomic_inc(&s->vdq.available);
+
+ qbman_inval_prefetch(s, QBMAN_CENA_SWP_DQRR(s->dqrr.next_idx));
+
+ return p;
+}
+
+/**
+ * qbman_swp_dqrr_consume() - Consume DQRR entries previously returned from
+ * qbman_swp_dqrr_next().
+ * @s: the software portal object
+ * @dq: the DQRR entry to be consumed
+ */
+void qbman_swp_dqrr_consume(struct qbman_swp *s, const struct dpaa2_dq *dq)
+{
+ qbman_write_register(s, QBMAN_CINH_SWP_DCAP, QBMAN_IDX_FROM_DQRR(dq));
+}
+
+/**
+ * qbman_result_has_new_result() - Check and get the dequeue response from the
+ * dq storage memory set in pull dequeue command
+ * @s: the software portal object
+ * @dq: the dequeue result read from the memory
+ *
+ * Return 1 for getting a valid dequeue result, or 0 for not getting a valid
+ * dequeue result.
+ *
+ * Only used for user-provided storage of dequeue results, not DQRR. For
+ * efficiency purposes, the driver will perform any required endianness
+ * conversion to ensure that the user's dequeue result storage is in host-endian
+ * format. As such, once the user has called qbman_result_has_new_result() and
+ * been returned a valid dequeue result, they should not call it again on
+ * the same memory location (except of course if another dequeue command has
+ * been executed to produce a new result to that location).
+ */
+int qbman_result_has_new_result(struct qbman_swp *s, const struct dpaa2_dq *dq)
+{
+ if (dq->dq.tok != QMAN_DQ_TOKEN_VALID)
+ return 0;
+
+ /*
+ * Set token to be 0 so we will detect change back to 1
+ * next time the looping is traversed. Const is cast away here
+ * as we want users to treat the dequeue responses as read only.
+ */
+ ((struct dpaa2_dq *)dq)->dq.tok = 0;
+
+ /*
+ * Determine whether VDQCR is available based on whether the
+ * current result is sitting in the first storage location of
+ * the busy command.
+ */
+ if (s->vdq.storage == dq) {
+ s->vdq.storage = NULL;
+ atomic_inc(&s->vdq.available);
+ }
+
+ return 1;
+}
+
+/**
+ * qbman_release_desc_clear() - Clear the contents of a descriptor to
+ * default/starting state.
+ */
+void qbman_release_desc_clear(struct qbman_release_desc *d)
+{
+ memset(d, 0, sizeof(*d));
+ d->verb = 1 << 5; /* Release Command Valid */
+}
+
+/**
+ * qbman_release_desc_set_bpid() - Set the ID of the buffer pool to release to
+ */
+void qbman_release_desc_set_bpid(struct qbman_release_desc *d, u16 bpid)
+{
+ d->bpid = cpu_to_le16(bpid);
+}
+
+/**
+ * qbman_release_desc_set_rcdi() - Determines whether or not the portal's RCDI
+ * interrupt source should be asserted after the release command is completed.
+ */
+void qbman_release_desc_set_rcdi(struct qbman_release_desc *d, int enable)
+{
+ if (enable)
+ d->verb |= 1 << 6;
+ else
+ d->verb &= ~(1 << 6);
+}
+
+#define RAR_IDX(rar) ((rar) & 0x7)
+#define RAR_VB(rar) ((rar) & 0x80)
+#define RAR_SUCCESS(rar) ((rar) & 0x100)
+
+/**
+ * qbman_swp_release() - Issue a buffer release command
+ * @s: the software portal object
+ * @d: the release descriptor
+ * @buffers: a pointer pointing to the buffer address to be released
+ * @num_buffers: number of buffers to be released, must be less than 8
+ *
+ * Return 0 for success, -EBUSY if the release command ring is not ready.
+ */
+int qbman_swp_release(struct qbman_swp *s, const struct qbman_release_desc *d,
+ const u64 *buffers, unsigned int num_buffers)
+{
+ int i;
+ struct qbman_release_desc *p;
+ u32 rar;
+
+ if (!num_buffers || (num_buffers > 7))
+ return -EINVAL;
+
+ rar = qbman_read_register(s, QBMAN_CINH_SWP_RAR);
+ if (!RAR_SUCCESS(rar))
+ return -EBUSY;
+
+ /* Start the release command */
+ p = qbman_get_cmd(s, QBMAN_CENA_SWP_RCR(RAR_IDX(rar)));
+ /* Copy the caller's buffer pointers to the command */
+ for (i = 0; i < num_buffers; i++)
+ p->buf[i] = cpu_to_le64(buffers[i]);
+ p->bpid = d->bpid;
+
+ /*
+ * Set the verb byte, have to substitute in the valid-bit and the number
+ * of buffers.
+ */
+ dma_wmb();
+ p->verb = d->verb | RAR_VB(rar) | num_buffers;
+ dccvac(p);
+
+ return 0;
+}
+
+struct qbman_acquire_desc {
+ u8 verb;
+ u8 reserved;
+ u16 bpid;
+ u8 num;
+ u8 reserved2[59];
+};
+
+struct qbman_acquire_rslt {
+ u8 verb;
+ u8 rslt;
+ u16 reserved;
+ u8 num;
+ u8 reserved2[3];
+ u64 buf[7];
+};
+
+/**
+ * qbman_swp_acquire() - Issue a buffer acquire command
+ * @s: the software portal object
+ * @bpid: the buffer pool index
+ * @buffers: a pointer pointing to the acquired buffer addresses
+ * @num_buffers: number of buffers to be acquired, must be less than 8
+ *
+ * Return 0 for success, or negative error code if the acquire command
+ * fails.
+ */
+int qbman_swp_acquire(struct qbman_swp *s, u16 bpid, u64 *buffers,
+ unsigned int num_buffers)
+{
+ struct qbman_acquire_desc *p;
+ struct qbman_acquire_rslt *r;
+ int i;
+
+ if (!num_buffers || (num_buffers > 7))
+ return -EINVAL;
+
+ /* Start the management command */
+ p = qbman_swp_mc_start(s);
+
+ if (!p)
+ return -EBUSY;
+
+ /* Encode the caller-provided attributes */
+ p->bpid = cpu_to_le16(bpid);
+ p->num = num_buffers;
+
+ /* Complete the management command */
+ r = qbman_swp_mc_complete(s, p, QBMAN_MC_ACQUIRE);
+ if (unlikely(!r)) {
+ pr_err("qbman: acquire from BPID %d failed, no response\n",
+ bpid);
+ return -EIO;
+ }
+
+ /* Decode the outcome */
+ WARN_ON((r->verb & 0x7f) != QBMAN_MC_ACQUIRE);
+
+ /* Determine success or failure */
+ if (unlikely(r->rslt != QBMAN_MC_RSLT_OK)) {
+ pr_err("qbman: acquire from BPID 0x%x failed, code=0x%02x\n",
+ bpid, r->rslt);
+ return -EIO;
+ }
+
+ WARN_ON(r->num > num_buffers);
+
+ /* Copy the acquired buffers to the caller's array */
+ for (i = 0; i < r->num; i++)
+ buffers[i] = le64_to_cpu(r->buf[i]);
+
+ return (int)r->num;
+}
+
+struct qbman_alt_fq_state_desc {
+ u8 verb;
+ u8 reserved[3];
+ u32 fqid;
+ u8 reserved2[56];
+};
+
+struct qbman_alt_fq_state_rslt {
+ u8 verb;
+ u8 rslt;
+ u8 reserved[62];
+};
+
+#define ALT_FQ_FQID_MASK 0x00FFFFFF
+
+int qbman_swp_alt_fq_state(struct qbman_swp *s, u32 fqid,
+ u8 alt_fq_verb)
+{
+ struct qbman_alt_fq_state_desc *p;
+ struct qbman_alt_fq_state_rslt *r;
+
+ /* Start the management command */
+ p = qbman_swp_mc_start(s);
+ if (!p)
+ return -EBUSY;
+
+ p->fqid = cpu_to_le32(fqid) & ALT_FQ_FQID_MASK;
+
+ /* Complete the management command */
+ r = qbman_swp_mc_complete(s, p, alt_fq_verb);
+ if (unlikely(!r)) {
+ pr_err("qbman: mgmt cmd failed, no response (verb=0x%x)\n",
+ alt_fq_verb);
+ return -EIO;
+ }
+
+ /* Decode the outcome */
+ WARN_ON((r->verb & QBMAN_RESULT_MASK) != alt_fq_verb);
+
+ /* Determine success or failure */
+ if (unlikely(r->rslt != QBMAN_MC_RSLT_OK)) {
+ pr_err("qbman: ALT FQID %d failed: verb = 0x%08x code = 0x%02x\n",
+ fqid, r->verb, r->rslt);
+ return -EIO;
+ }
+
+ return 0;
+}
+
+struct qbman_cdan_ctrl_desc {
+ u8 verb;
+ u8 reserved;
+ u16 ch;
+ u8 we;
+ u8 ctrl;
+ u16 reserved2;
+ u64 cdan_ctx;
+ u8 reserved3[48];
+
+};
+
+struct qbman_cdan_ctrl_rslt {
+ u8 verb;
+ u8 rslt;
+ u16 ch;
+ u8 reserved[60];
+};
+
+int qbman_swp_CDAN_set(struct qbman_swp *s, u16 channelid,
+ u8 we_mask, u8 cdan_en,
+ u64 ctx)
+{
+ struct qbman_cdan_ctrl_desc *p = NULL;
+ struct qbman_cdan_ctrl_rslt *r = NULL;
+
+ /* Start the management command */
+ p = qbman_swp_mc_start(s);
+ if (!p)
+ return -EBUSY;
+
+ /* Encode the caller-provided attributes */
+ p->ch = cpu_to_le16(channelid);
+ p->we = we_mask;
+ if (cdan_en)
+ p->ctrl = 1;
+ else
+ p->ctrl = 0;
+ p->cdan_ctx = cpu_to_le64(ctx);
+
+ /* Complete the management command */
+ r = qbman_swp_mc_complete(s, p, QBMAN_WQCHAN_CONFIGURE);
+ if (unlikely(!r)) {
+ pr_err("qbman: wqchan config failed, no response\n");
+ return -EIO;
+ }
+
+ WARN_ON((r->verb & 0x7f) != QBMAN_WQCHAN_CONFIGURE);
+
+ /* Determine success or failure */
+ if (unlikely(r->rslt != QBMAN_MC_RSLT_OK)) {
+ pr_err("qbman: CDAN cQID %d failed: code = 0x%02x\n",
+ channelid, r->rslt);
+ return -EIO;
+ }
+
+ return 0;
+}
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/dpio/qbman-portal.h
@@ -0,0 +1,662 @@
+/*
+ * Copyright (C) 2014-2016 Freescale Semiconductor, Inc.
+ * Copyright 2016 NXP
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __FSL_QBMAN_PORTAL_H
+#define __FSL_QBMAN_PORTAL_H
+
+#include "qbman_private.h"
+#include "../../include/dpaa2-fd.h"
+
+struct dpaa2_dq;
+struct qbman_swp;
+
+/* qbman software portal descriptor structure */
+struct qbman_swp_desc {
+ void *cena_bar; /* Cache-enabled portal base address */
+ void *cinh_bar; /* Cache-inhibited portal base address */
+ u32 qman_version;
+};
+
+#define QBMAN_SWP_INTERRUPT_EQRI 0x01
+#define QBMAN_SWP_INTERRUPT_EQDI 0x02
+#define QBMAN_SWP_INTERRUPT_DQRI 0x04
+#define QBMAN_SWP_INTERRUPT_RCRI 0x08
+#define QBMAN_SWP_INTERRUPT_RCDI 0x10
+#define QBMAN_SWP_INTERRUPT_VDCI 0x20
+
+/* the structure for pull dequeue descriptor */
+struct qbman_pull_desc {
+ u8 verb;
+ u8 numf;
+ u8 tok;
+ u8 reserved;
+ u32 dq_src;
+ u64 rsp_addr;
+ u64 rsp_addr_virt;
+ u8 padding[40];
+};
+
+enum qbman_pull_type_e {
+ /* dequeue with priority precedence, respect intra-class scheduling */
+ qbman_pull_type_prio = 1,
+ /* dequeue with active FQ precedence, respect ICS */
+ qbman_pull_type_active,
+ /* dequeue with active FQ precedence, no ICS */
+ qbman_pull_type_active_noics
+};
+
+/* Definitions for parsing dequeue entries */
+#define QBMAN_RESULT_MASK 0x7f
+#define QBMAN_RESULT_DQ 0x60
+#define QBMAN_RESULT_FQRN 0x21
+#define QBMAN_RESULT_FQRNI 0x22
+#define QBMAN_RESULT_FQPN 0x24
+#define QBMAN_RESULT_FQDAN 0x25
+#define QBMAN_RESULT_CDAN 0x26
+#define QBMAN_RESULT_CSCN_MEM 0x27
+#define QBMAN_RESULT_CGCU 0x28
+#define QBMAN_RESULT_BPSCN 0x29
+#define QBMAN_RESULT_CSCN_WQ 0x2a
+
+/* QBMan FQ management command codes */
+#define QBMAN_FQ_SCHEDULE 0x48
+#define QBMAN_FQ_FORCE 0x49
+#define QBMAN_FQ_XON 0x4d
+#define QBMAN_FQ_XOFF 0x4e
+
+/* structure of enqueue descriptor */
+struct qbman_eq_desc {
+ u8 verb;
+ u8 dca;
+ u16 seqnum;
+ u16 orpid;
+ u16 reserved1;
+ u32 tgtid;
+ u32 tag;
+ u16 qdbin;
+ u8 qpri;
+ u8 reserved[3];
+ u8 wae;
+ u8 rspid;
+ u64 rsp_addr;
+ u8 fd[32];
+};
+
+/* buffer release descriptor */
+struct qbman_release_desc {
+ u8 verb;
+ u8 reserved;
+ u16 bpid;
+ u32 reserved2;
+ u64 buf[7];
+};
+
+/* Management command result codes */
+#define QBMAN_MC_RSLT_OK 0xf0
+
+#define CODE_CDAN_WE_EN 0x1
+#define CODE_CDAN_WE_CTX 0x4
+
+/* portal data structure */
+struct qbman_swp {
+ const struct qbman_swp_desc *desc;
+ void __iomem *addr_cena;
+ void __iomem *addr_cinh;
+
+ /* Management commands */
+ struct {
+ u32 valid_bit; /* 0x00 or 0x80 */
+ } mc;
+
+ /* Push dequeues */
+ u32 sdq;
+
+ /* Volatile dequeues */
+ struct {
+ atomic_t available; /* indicates if a command can be sent */
+ u32 valid_bit; /* 0x00 or 0x80 */
+ struct dpaa2_dq *storage; /* NULL if DQRR */
+ } vdq;
+
+ /* DQRR */
+ struct {
+ u32 next_idx;
+ u32 valid_bit;
+ u8 dqrr_size;
+ int reset_bug; /* indicates dqrr reset workaround is needed */
+ } dqrr;
+};
+
+struct qbman_swp *qbman_swp_init(const struct qbman_swp_desc *d);
+void qbman_swp_finish(struct qbman_swp *p);
+u32 qbman_swp_interrupt_read_status(struct qbman_swp *p);
+void qbman_swp_interrupt_clear_status(struct qbman_swp *p, u32 mask);
+u32 qbman_swp_interrupt_get_trigger(struct qbman_swp *p);
+void qbman_swp_interrupt_set_trigger(struct qbman_swp *p, u32 mask);
+int qbman_swp_interrupt_get_inhibit(struct qbman_swp *p);
+void qbman_swp_interrupt_set_inhibit(struct qbman_swp *p, int inhibit);
+
+void qbman_swp_push_get(struct qbman_swp *p, u8 channel_idx, int *enabled);
+void qbman_swp_push_set(struct qbman_swp *p, u8 channel_idx, int enable);
+
+void qbman_pull_desc_clear(struct qbman_pull_desc *d);
+void qbman_pull_desc_set_storage(struct qbman_pull_desc *d,
+ struct dpaa2_dq *storage,
+ dma_addr_t storage_phys,
+ int stash);
+void qbman_pull_desc_set_numframes(struct qbman_pull_desc *d, u8 numframes);
+void qbman_pull_desc_set_fq(struct qbman_pull_desc *d, u32 fqid);
+void qbman_pull_desc_set_wq(struct qbman_pull_desc *d, u32 wqid,
+ enum qbman_pull_type_e dct);
+void qbman_pull_desc_set_channel(struct qbman_pull_desc *d, u32 chid,
+ enum qbman_pull_type_e dct);
+
+int qbman_swp_pull(struct qbman_swp *p, struct qbman_pull_desc *d);
+
+const struct dpaa2_dq *qbman_swp_dqrr_next(struct qbman_swp *s);
+void qbman_swp_dqrr_consume(struct qbman_swp *s, const struct dpaa2_dq *dq);
+
+int qbman_result_has_new_result(struct qbman_swp *p, const struct dpaa2_dq *dq);
+
+void qbman_eq_desc_clear(struct qbman_eq_desc *d);
+void qbman_eq_desc_set_no_orp(struct qbman_eq_desc *d, int respond_success);
+void qbman_eq_desc_set_token(struct qbman_eq_desc *d, u8 token);
+void qbman_eq_desc_set_fq(struct qbman_eq_desc *d, u32 fqid);
+void qbman_eq_desc_set_qd(struct qbman_eq_desc *d, u32 qdid,
+ u32 qd_bin, u32 qd_prio);
+
+int qbman_swp_enqueue(struct qbman_swp *p, const struct qbman_eq_desc *d,
+ const struct dpaa2_fd *fd);
+
+void qbman_release_desc_clear(struct qbman_release_desc *d);
+void qbman_release_desc_set_bpid(struct qbman_release_desc *d, u16 bpid);
+void qbman_release_desc_set_rcdi(struct qbman_release_desc *d, int enable);
+
+int qbman_swp_release(struct qbman_swp *s, const struct qbman_release_desc *d,
+ const u64 *buffers, unsigned int num_buffers);
+int qbman_swp_acquire(struct qbman_swp *s, u16 bpid, u64 *buffers,
+ unsigned int num_buffers);
+int qbman_swp_alt_fq_state(struct qbman_swp *s, u32 fqid,
+ u8 alt_fq_verb);
+int qbman_swp_CDAN_set(struct qbman_swp *s, u16 channelid,
+ u8 we_mask, u8 cdan_en,
+ u64 ctx);
+
+void *qbman_swp_mc_start(struct qbman_swp *p);
+void qbman_swp_mc_submit(struct qbman_swp *p, void *cmd, u8 cmd_verb);
+void *qbman_swp_mc_result(struct qbman_swp *p);
+
+/**
+ * qbman_result_is_DQ() - check if the dequeue result is a dequeue response
+ * @dq: the dequeue result to be checked
+ *
+ * DQRR entries may contain non-dequeue results, ie. notifications
+ */
+static inline int qbman_result_is_DQ(const struct dpaa2_dq *dq)
+{
+ return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_DQ);
+}
+
+/**
+ * qbman_result_is_SCN() - Check the dequeue result is notification or not
+ * @dq: the dequeue result to be checked
+ *
+ */
+static inline int qbman_result_is_SCN(const struct dpaa2_dq *dq)
+{
+ return !qbman_result_is_DQ(dq);
+}
+
+/* FQ Data Availability */
+static inline int qbman_result_is_FQDAN(const struct dpaa2_dq *dq)
+{
+ return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_FQDAN);
+}
+
+/* Channel Data Availability */
+static inline int qbman_result_is_CDAN(const struct dpaa2_dq *dq)
+{
+ return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_CDAN);
+}
+
+/* Congestion State Change */
+static inline int qbman_result_is_CSCN(const struct dpaa2_dq *dq)
+{
+ return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_CSCN_WQ);
+}
+
+/* Buffer Pool State Change */
+static inline int qbman_result_is_BPSCN(const struct dpaa2_dq *dq)
+{
+ return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_BPSCN);
+}
+
+/* Congestion Group Count Update */
+static inline int qbman_result_is_CGCU(const struct dpaa2_dq *dq)
+{
+ return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_CGCU);
+}
+
+/* Retirement */
+static inline int qbman_result_is_FQRN(const struct dpaa2_dq *dq)
+{
+ return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_FQRN);
+}
+
+/* Retirement Immediate */
+static inline int qbman_result_is_FQRNI(const struct dpaa2_dq *dq)
+{
+ return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_FQRNI);
+}
+
+ /* Park */
+static inline int qbman_result_is_FQPN(const struct dpaa2_dq *dq)
+{
+ return ((dq->dq.verb & QBMAN_RESULT_MASK) == QBMAN_RESULT_FQPN);
+}
+
+/**
+ * qbman_result_SCN_state() - Get the state field in State-change notification
+ */
+static inline u8 qbman_result_SCN_state(const struct dpaa2_dq *scn)
+{
+ return scn->scn.state;
+}
+
+#define SCN_RID_MASK 0x00FFFFFF
+
+/**
+ * qbman_result_SCN_rid() - Get the resource id in State-change notification
+ */
+static inline u32 qbman_result_SCN_rid(const struct dpaa2_dq *scn)
+{
+ return le32_to_cpu(scn->scn.rid_tok) & SCN_RID_MASK;
+}
+
+/**
+ * qbman_result_SCN_ctx() - Get the context data in State-change notification
+ */
+static inline u64 qbman_result_SCN_ctx(const struct dpaa2_dq *scn)
+{
+ return le64_to_cpu(scn->scn.ctx);
+}
+
+/**
+ * qbman_swp_fq_schedule() - Move the fq to the scheduled state
+ * @s: the software portal object
+ * @fqid: the index of frame queue to be scheduled
+ *
+ * There are a couple of different ways that a FQ can end up parked state,
+ * This schedules it.
+ *
+ * Return 0 for success, or negative error code for failure.
+ */
+static inline int qbman_swp_fq_schedule(struct qbman_swp *s, u32 fqid)
+{
+ return qbman_swp_alt_fq_state(s, fqid, QBMAN_FQ_SCHEDULE);
+}
+
+/**
+ * qbman_swp_fq_force() - Force the FQ to fully scheduled state
+ * @s: the software portal object
+ * @fqid: the index of frame queue to be forced
+ *
+ * Force eligible will force a tentatively-scheduled FQ to be fully-scheduled
+ * and thus be available for selection by any channel-dequeuing behaviour (push
+ * or pull). If the FQ is subsequently "dequeued" from the channel and is still
+ * empty at the time this happens, the resulting dq_entry will have no FD.
+ * (qbman_result_DQ_fd() will return NULL.)
+ *
+ * Return 0 for success, or negative error code for failure.
+ */
+static inline int qbman_swp_fq_force(struct qbman_swp *s, u32 fqid)
+{
+ return qbman_swp_alt_fq_state(s, fqid, QBMAN_FQ_FORCE);
+}
+
+/**
+ * qbman_swp_fq_xon() - sets FQ flow-control to XON
+ * @s: the software portal object
+ * @fqid: the index of frame queue
+ *
+ * This setting doesn't affect enqueues to the FQ, just dequeues.
+ *
+ * Return 0 for success, or negative error code for failure.
+ */
+static inline int qbman_swp_fq_xon(struct qbman_swp *s, u32 fqid)
+{
+ return qbman_swp_alt_fq_state(s, fqid, QBMAN_FQ_XON);
+}
+
+/**
+ * qbman_swp_fq_xoff() - sets FQ flow-control to XOFF
+ * @s: the software portal object
+ * @fqid: the index of frame queue
+ *
+ * This setting doesn't affect enqueues to the FQ, just dequeues.
+ * XOFF FQs will remain in the tenatively-scheduled state, even when
+ * non-empty, meaning they won't be selected for scheduled dequeuing.
+ * If a FQ is changed to XOFF after it had already become truly-scheduled
+ * to a channel, and a pull dequeue of that channel occurs that selects
+ * that FQ for dequeuing, then the resulting dq_entry will have no FD.
+ * (qbman_result_DQ_fd() will return NULL.)
+ *
+ * Return 0 for success, or negative error code for failure.
+ */
+static inline int qbman_swp_fq_xoff(struct qbman_swp *s, u32 fqid)
+{
+ return qbman_swp_alt_fq_state(s, fqid, QBMAN_FQ_XOFF);
+}
+
+/* If the user has been allocated a channel object that is going to generate
+ * CDANs to another channel, then the qbman_swp_CDAN* functions will be
+ * necessary.
+ *
+ * CDAN-enabled channels only generate a single CDAN notification, after which
+ * they need to be reenabled before they'll generate another. The idea is
+ * that pull dequeuing will occur in reaction to the CDAN, followed by a
+ * reenable step. Each function generates a distinct command to hardware, so a
+ * combination function is provided if the user wishes to modify the "context"
+ * (which shows up in each CDAN message) each time they reenable, as a single
+ * command to hardware.
+ */
+
+/**
+ * qbman_swp_CDAN_set_context() - Set CDAN context
+ * @s: the software portal object
+ * @channelid: the channel index
+ * @ctx: the context to be set in CDAN
+ *
+ * Return 0 for success, or negative error code for failure.
+ */
+static inline int qbman_swp_CDAN_set_context(struct qbman_swp *s, u16 channelid,
+ u64 ctx)
+{
+ return qbman_swp_CDAN_set(s, channelid,
+ CODE_CDAN_WE_CTX,
+ 0, ctx);
+}
+
+/**
+ * qbman_swp_CDAN_enable() - Enable CDAN for the channel
+ * @s: the software portal object
+ * @channelid: the index of the channel to generate CDAN
+ *
+ * Return 0 for success, or negative error code for failure.
+ */
+static inline int qbman_swp_CDAN_enable(struct qbman_swp *s, u16 channelid)
+{
+ return qbman_swp_CDAN_set(s, channelid,
+ CODE_CDAN_WE_EN,
+ 1, 0);
+}
+
+/**
+ * qbman_swp_CDAN_disable() - disable CDAN for the channel
+ * @s: the software portal object
+ * @channelid: the index of the channel to generate CDAN
+ *
+ * Return 0 for success, or negative error code for failure.
+ */
+static inline int qbman_swp_CDAN_disable(struct qbman_swp *s, u16 channelid)
+{
+ return qbman_swp_CDAN_set(s, channelid,
+ CODE_CDAN_WE_EN,
+ 0, 0);
+}
+
+/**
+ * qbman_swp_CDAN_set_context_enable() - Set CDAN contest and enable CDAN
+ * @s: the software portal object
+ * @channelid: the index of the channel to generate CDAN
+ * @ctx:i the context set in CDAN
+ *
+ * Return 0 for success, or negative error code for failure.
+ */
+static inline int qbman_swp_CDAN_set_context_enable(struct qbman_swp *s,
+ u16 channelid,
+ u64 ctx)
+{
+ return qbman_swp_CDAN_set(s, channelid,
+ CODE_CDAN_WE_EN | CODE_CDAN_WE_CTX,
+ 1, ctx);
+}
+
+/* Wraps up submit + poll-for-result */
+static inline void *qbman_swp_mc_complete(struct qbman_swp *swp, void *cmd,
+ u8 cmd_verb)
+{
+ int loopvar = 1000;
+
+ qbman_swp_mc_submit(swp, cmd, cmd_verb);
+
+ do {
+ cmd = qbman_swp_mc_result(swp);
+ } while (!cmd && loopvar--);
+
+ WARN_ON(!loopvar);
+
+ return cmd;
+}
+
+/* ------------ */
+/* qb_attr_code */
+/* ------------ */
+
+/* This struct locates a sub-field within a QBMan portal (CENA) cacheline which
+ * is either serving as a configuration command or a query result. The
+ * representation is inherently little-endian, as the indexing of the words is
+ * itself little-endian in nature and layerscape is little endian for anything
+ * that crosses a word boundary too (64-bit fields are the obvious examples).
+ */
+struct qb_attr_code {
+ unsigned int word; /* which u32[] array member encodes the field */
+ unsigned int lsoffset; /* encoding offset from ls-bit */
+ unsigned int width; /* encoding width. (bool must be 1.) */
+};
+
+/* Some pre-defined codes */
+extern struct qb_attr_code code_generic_verb;
+extern struct qb_attr_code code_generic_rslt;
+
+/* Macros to define codes */
+#define QB_CODE(a, b, c) { a, b, c}
+#define QB_CODE_NULL \
+ QB_CODE((unsigned int)-1, (unsigned int)-1, (unsigned int)-1)
+
+/* Rotate a code "ms", meaning that it moves from less-significant bytes to
+ * more-significant, from less-significant words to more-significant, etc. The
+ * "ls" version does the inverse, from more-significant towards
+ * less-significant.
+ */
+static inline void qb_attr_code_rotate_ms(struct qb_attr_code *code,
+ unsigned int bits)
+{
+ code->lsoffset += bits;
+ while (code->lsoffset > 31) {
+ code->word++;
+ code->lsoffset -= 32;
+ }
+}
+
+static inline void qb_attr_code_rotate_ls(struct qb_attr_code *code,
+ unsigned int bits)
+{
+ /* Don't be fooled, this trick should work because the types are
+ * unsigned. So the case that interests the while loop (the rotate has
+ * gone too far and the word count needs to compensate for it), is
+ * manifested when lsoffset is negative. But that equates to a really
+ * large unsigned value, starting with lots of "F"s. As such, we can
+ * continue adding 32 back to it until it wraps back round above zero,
+ * to a value of 31 or less...
+ */
+ code->lsoffset -= bits;
+ while (code->lsoffset > 31) {
+ code->word--;
+ code->lsoffset += 32;
+ }
+}
+
+/* Implement a loop of code rotations until 'expr' evaluates to FALSE (0). */
+#define qb_attr_code_for_ms(code, bits, expr) \
+ for (; expr; qb_attr_code_rotate_ms(code, bits))
+#define qb_attr_code_for_ls(code, bits, expr) \
+ for (; expr; qb_attr_code_rotate_ls(code, bits))
+
+static inline void word_copy(void *d, const void *s, unsigned int cnt)
+{
+ u32 *dd = d;
+ const u32 *ss = s;
+
+ while (cnt--)
+ *(dd++) = *(ss++);
+}
+
+/*
+ * Currently, the CENA support code expects each 32-bit word to be written in
+ * host order, and these are converted to hardware (little-endian) order on
+ * command submission. However, 64-bit quantities are must be written (and read)
+ * as two 32-bit words with the least-significant word first, irrespective of
+ * host endianness.
+ */
+static inline void u64_to_le32_copy(void *d, const u64 *s,
+ unsigned int cnt)
+{
+ u32 *dd = d;
+ const u32 *ss = (const u32 *)s;
+
+ while (cnt--) {
+ /*
+ * TBD: the toolchain was choking on the use of 64-bit types up
+ * until recently so this works entirely with 32-bit variables.
+ * When 64-bit types become usable again, investigate better
+ * ways of doing this.
+ */
+#if defined(__BIG_ENDIAN)
+ *(dd++) = ss[1];
+ *(dd++) = ss[0];
+ ss += 2;
+#else
+ *(dd++) = *(ss++);
+ *(dd++) = *(ss++);
+#endif
+ }
+}
+
+static inline void u64_from_le32_copy(u64 *d, const void *s,
+ unsigned int cnt)
+{
+ const u32 *ss = s;
+ u32 *dd = (u32 *)d;
+
+ while (cnt--) {
+#if defined(__BIG_ENDIAN)
+ dd[1] = *(ss++);
+ dd[0] = *(ss++);
+ dd += 2;
+#else
+ *(dd++) = *(ss++);
+ *(dd++) = *(ss++);
+#endif
+ }
+}
+
+/* decode a field from a cacheline */
+static inline u32 qb_attr_code_decode(const struct qb_attr_code *code,
+ const u32 *cacheline)
+{
+ return d32_u32(code->lsoffset, code->width, cacheline[code->word]);
+}
+
+static inline u64 qb_attr_code_decode_64(const struct qb_attr_code *code,
+ const u64 *cacheline)
+{
+ u64 res;
+
+ u64_from_le32_copy(&res, &cacheline[code->word / 2], 1);
+ return res;
+}
+
+/* encode a field to a cacheline */
+static inline void qb_attr_code_encode(const struct qb_attr_code *code,
+ u32 *cacheline, u32 val)
+{
+ cacheline[code->word] =
+ r32_u32(code->lsoffset, code->width, cacheline[code->word])
+ | e32_u32(code->lsoffset, code->width, val);
+}
+
+static inline void qb_attr_code_encode_64(const struct qb_attr_code *code,
+ u64 *cacheline, u64 val)
+{
+ u64_to_le32_copy(&cacheline[code->word / 2], &val, 1);
+}
+
+/* Small-width signed values (two's-complement) will decode into medium-width
+ * positives. (Eg. for an 8-bit signed field, which stores values from -128 to
+ * +127, a setting of -7 would appear to decode to the 32-bit unsigned value
+ * 249. Likewise -120 would decode as 136.) This function allows the caller to
+ * "re-sign" such fields to 32-bit signed. (Eg. -7, which was 249 with an 8-bit
+ * encoding, will become 0xfffffff9 if you cast the return value to u32).
+ */
+static inline int32_t qb_attr_code_makesigned(const struct qb_attr_code *code,
+ u32 val)
+{
+ WARN_ON(val >= (1 << code->width));
+ /* If the high bit was set, it was encoding a negative */
+ if (val >= (1 << (code->width - 1)))
+ return (int32_t)0 - (int32_t)(((u32)1 << code->width) -
+ val);
+ /* Otherwise, it was encoding a positive */
+ return (int32_t)val;
+}
+
+/* ---------------------- */
+/* Descriptors/cachelines */
+/* ---------------------- */
+
+/* To avoid needless dynamic allocation, the driver API often gives the caller
+ * a "descriptor" type that the caller can instantiate however they like.
+ * Ultimately though, it is just a cacheline of binary storage (or something
+ * smaller when it is known that the descriptor doesn't need all 64 bytes) for
+ * holding pre-formatted pieces of hardware commands. The performance-critical
+ * code can then copy these descriptors directly into hardware command
+ * registers more efficiently than trying to construct/format commands
+ * on-the-fly. The API user sees the descriptor as an array of 32-bit words in
+ * order for the compiler to know its size, but the internal details are not
+ * exposed. The following macro is used within the driver for converting *any*
+ * descriptor pointer to a usable array pointer. The use of a macro (instead of
+ * an inline) is necessary to work with different descriptor types and to work
+ * correctly with const and non-const inputs (and similarly-qualified outputs).
+ */
+#define qb_cl(d) (&(d)->dont_manipulate_directly[0])
+
+#endif /* __FSL_QBMAN_PORTAL_H */
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/dpio/qbman_debug.c
@@ -0,0 +1,853 @@
+/* Copyright (C) 2015 Freescale Semiconductor, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <linux/errno.h>
+
+#include "../../include/dpaa2-global.h"
+#include "qbman-portal.h"
+#include "qbman_debug.h"
+
+/* QBMan portal management command code */
+#define QBMAN_BP_QUERY 0x32
+#define QBMAN_FQ_QUERY 0x44
+#define QBMAN_FQ_QUERY_NP 0x45
+#define QBMAN_CGR_QUERY 0x51
+#define QBMAN_WRED_QUERY 0x54
+#define QBMAN_CGR_STAT_QUERY 0x55
+#define QBMAN_CGR_STAT_QUERY_CLR 0x56
+
+enum qbman_attr_usage_e {
+ qbman_attr_usage_fq,
+ qbman_attr_usage_bpool,
+ qbman_attr_usage_cgr,
+};
+
+struct int_qbman_attr {
+ u32 words[32];
+ enum qbman_attr_usage_e usage;
+};
+
+#define attr_type_set(a, e) \
+{ \
+ struct qbman_attr *__attr = a; \
+ enum qbman_attr_usage_e __usage = e; \
+ ((struct int_qbman_attr *)__attr)->usage = __usage; \
+}
+
+#define ATTR32(d) (&(d)->dont_manipulate_directly[0])
+#define ATTR32_1(d) (&(d)->dont_manipulate_directly[16])
+
+static struct qb_attr_code code_bp_bpid = QB_CODE(0, 16, 16);
+static struct qb_attr_code code_bp_bdi = QB_CODE(1, 16, 1);
+static struct qb_attr_code code_bp_va = QB_CODE(1, 17, 1);
+static struct qb_attr_code code_bp_wae = QB_CODE(1, 18, 1);
+static struct qb_attr_code code_bp_swdet = QB_CODE(4, 0, 16);
+static struct qb_attr_code code_bp_swdxt = QB_CODE(4, 16, 16);
+static struct qb_attr_code code_bp_hwdet = QB_CODE(5, 0, 16);
+static struct qb_attr_code code_bp_hwdxt = QB_CODE(5, 16, 16);
+static struct qb_attr_code code_bp_swset = QB_CODE(6, 0, 16);
+static struct qb_attr_code code_bp_swsxt = QB_CODE(6, 16, 16);
+static struct qb_attr_code code_bp_vbpid = QB_CODE(7, 0, 14);
+static struct qb_attr_code code_bp_icid = QB_CODE(7, 16, 15);
+static struct qb_attr_code code_bp_pl = QB_CODE(7, 31, 1);
+static struct qb_attr_code code_bp_bpscn_addr_lo = QB_CODE(8, 0, 32);
+static struct qb_attr_code code_bp_bpscn_addr_hi = QB_CODE(9, 0, 32);
+static struct qb_attr_code code_bp_bpscn_ctx_lo = QB_CODE(10, 0, 32);
+static struct qb_attr_code code_bp_bpscn_ctx_hi = QB_CODE(11, 0, 32);
+static struct qb_attr_code code_bp_hw_targ = QB_CODE(12, 0, 16);
+static struct qb_attr_code code_bp_state = QB_CODE(1, 24, 3);
+static struct qb_attr_code code_bp_fill = QB_CODE(2, 0, 32);
+static struct qb_attr_code code_bp_hdptr = QB_CODE(3, 0, 32);
+static struct qb_attr_code code_bp_sdcnt = QB_CODE(13, 0, 8);
+static struct qb_attr_code code_bp_hdcnt = QB_CODE(13, 1, 8);
+static struct qb_attr_code code_bp_sscnt = QB_CODE(13, 2, 8);
+
+void qbman_bp_attr_clear(struct qbman_attr *a)
+{
+ memset(a, 0, sizeof(*a));
+ attr_type_set(a, qbman_attr_usage_bpool);
+}
+
+int qbman_bp_query(struct qbman_swp *s, u32 bpid,
+ struct qbman_attr *a)
+{
+ u32 *p;
+ u32 verb, rslt;
+ u32 *attr = ATTR32(a);
+
+ qbman_bp_attr_clear(a);
+
+ /* Start the management command */
+ p = qbman_swp_mc_start(s);
+ if (!p)
+ return -EBUSY;
+
+ /* Encode the caller-provided attributes */
+ qb_attr_code_encode(&code_bp_bpid, p, bpid);
+
+ /* Complete the management command */
+ p = qbman_swp_mc_complete(s, p, QBMAN_BP_QUERY);
+
+ /* Decode the outcome */
+ verb = qb_attr_code_decode(&code_generic_verb, p);
+ rslt = qb_attr_code_decode(&code_generic_rslt, p);
+ WARN_ON(verb != QBMAN_BP_QUERY);
+
+ /* Determine success or failure */
+ if (unlikely(rslt != QBMAN_MC_RSLT_OK)) {
+ pr_err("Query of BPID 0x%x failed, code=0x%02x\n", bpid, rslt);
+ return -EIO;
+ }
+
+ /* For the query, word[0] of the result contains only the
+ * verb/rslt fields, so skip word[0].
+ */
+ word_copy(&attr[1], &p[1], 15);
+ return 0;
+}
+
+void qbman_bp_attr_get_bdi(struct qbman_attr *a, int *bdi, int *va, int *wae)
+{
+ u32 *p = ATTR32(a);
+
+ *bdi = !!qb_attr_code_decode(&code_bp_bdi, p);
+ *va = !!qb_attr_code_decode(&code_bp_va, p);
+ *wae = !!qb_attr_code_decode(&code_bp_wae, p);
+}
+
+static u32 qbman_bp_thresh_to_value(u32 val)
+{
+ return (val & 0xff) << ((val & 0xf00) >> 8);
+}
+
+void qbman_bp_attr_get_swdet(struct qbman_attr *a, u32 *swdet)
+{
+ u32 *p = ATTR32(a);
+
+ *swdet = qbman_bp_thresh_to_value(qb_attr_code_decode(&code_bp_swdet,
+ p));
+}
+
+void qbman_bp_attr_get_swdxt(struct qbman_attr *a, u32 *swdxt)
+{
+ u32 *p = ATTR32(a);
+
+ *swdxt = qbman_bp_thresh_to_value(qb_attr_code_decode(&code_bp_swdxt,
+ p));
+}
+
+void qbman_bp_attr_get_hwdet(struct qbman_attr *a, u32 *hwdet)
+{
+ u32 *p = ATTR32(a);
+
+ *hwdet = qbman_bp_thresh_to_value(qb_attr_code_decode(&code_bp_hwdet,
+ p));
+}
+
+void qbman_bp_attr_get_hwdxt(struct qbman_attr *a, u32 *hwdxt)
+{
+ u32 *p = ATTR32(a);
+
+ *hwdxt = qbman_bp_thresh_to_value(qb_attr_code_decode(&code_bp_hwdxt,
+ p));
+}
+
+void qbman_bp_attr_get_swset(struct qbman_attr *a, u32 *swset)
+{
+ u32 *p = ATTR32(a);
+
+ *swset = qbman_bp_thresh_to_value(qb_attr_code_decode(&code_bp_swset,
+ p));
+}
+
+void qbman_bp_attr_get_swsxt(struct qbman_attr *a, u32 *swsxt)
+{
+ u32 *p = ATTR32(a);
+
+ *swsxt = qbman_bp_thresh_to_value(qb_attr_code_decode(&code_bp_swsxt,
+ p));
+}
+
+void qbman_bp_attr_get_vbpid(struct qbman_attr *a, u32 *vbpid)
+{
+ u32 *p = ATTR32(a);
+
+ *vbpid = qb_attr_code_decode(&code_bp_vbpid, p);
+}
+
+void qbman_bp_attr_get_icid(struct qbman_attr *a, u32 *icid, int *pl)
+{
+ u32 *p = ATTR32(a);
+
+ *icid = qb_attr_code_decode(&code_bp_icid, p);
+ *pl = !!qb_attr_code_decode(&code_bp_pl, p);
+}
+
+void qbman_bp_attr_get_bpscn_addr(struct qbman_attr *a, u64 *bpscn_addr)
+{
+ u32 *p = ATTR32(a);
+
+ *bpscn_addr = ((u64)qb_attr_code_decode(&code_bp_bpscn_addr_hi,
+ p) << 32) |
+ (u64)qb_attr_code_decode(&code_bp_bpscn_addr_lo,
+ p);
+}
+
+void qbman_bp_attr_get_bpscn_ctx(struct qbman_attr *a, u64 *bpscn_ctx)
+{
+ u32 *p = ATTR32(a);
+
+ *bpscn_ctx = ((u64)qb_attr_code_decode(&code_bp_bpscn_ctx_hi, p)
+ << 32) |
+ (u64)qb_attr_code_decode(&code_bp_bpscn_ctx_lo,
+ p);
+}
+
+void qbman_bp_attr_get_hw_targ(struct qbman_attr *a, u32 *hw_targ)
+{
+ u32 *p = ATTR32(a);
+
+ *hw_targ = qb_attr_code_decode(&code_bp_hw_targ, p);
+}
+
+int qbman_bp_info_has_free_bufs(struct qbman_attr *a)
+{
+ u32 *p = ATTR32(a);
+
+ return !(int)(qb_attr_code_decode(&code_bp_state, p) & 0x1);
+}
+
+int qbman_bp_info_is_depleted(struct qbman_attr *a)
+{
+ u32 *p = ATTR32(a);
+
+ return (int)(qb_attr_code_decode(&code_bp_state, p) & 0x2);
+}
+
+int qbman_bp_info_is_surplus(struct qbman_attr *a)
+{
+ u32 *p = ATTR32(a);
+
+ return (int)(qb_attr_code_decode(&code_bp_state, p) & 0x4);
+}
+
+u32 qbman_bp_info_num_free_bufs(struct qbman_attr *a)
+{
+ u32 *p = ATTR32(a);
+
+ return qb_attr_code_decode(&code_bp_fill, p);
+}
+
+u32 qbman_bp_info_hdptr(struct qbman_attr *a)
+{
+ u32 *p = ATTR32(a);
+
+ return qb_attr_code_decode(&code_bp_hdptr, p);
+}
+
+u32 qbman_bp_info_sdcnt(struct qbman_attr *a)
+{
+ u32 *p = ATTR32(a);
+
+ return qb_attr_code_decode(&code_bp_sdcnt, p);
+}
+
+u32 qbman_bp_info_hdcnt(struct qbman_attr *a)
+{
+ u32 *p = ATTR32(a);
+
+ return qb_attr_code_decode(&code_bp_hdcnt, p);
+}
+
+u32 qbman_bp_info_sscnt(struct qbman_attr *a)
+{
+ u32 *p = ATTR32(a);
+
+ return qb_attr_code_decode(&code_bp_sscnt, p);
+}
+
+static struct qb_attr_code code_fq_fqid = QB_CODE(1, 0, 24);
+static struct qb_attr_code code_fq_cgrid = QB_CODE(2, 16, 16);
+static struct qb_attr_code code_fq_destwq = QB_CODE(3, 0, 15);
+static struct qb_attr_code code_fq_fqctrl = QB_CODE(3, 24, 8);
+static struct qb_attr_code code_fq_icscred = QB_CODE(4, 0, 15);
+static struct qb_attr_code code_fq_tdthresh = QB_CODE(4, 16, 13);
+static struct qb_attr_code code_fq_oa_len = QB_CODE(5, 0, 12);
+static struct qb_attr_code code_fq_oa_ics = QB_CODE(5, 14, 1);
+static struct qb_attr_code code_fq_oa_cgr = QB_CODE(5, 15, 1);
+static struct qb_attr_code code_fq_mctl_bdi = QB_CODE(5, 24, 1);
+static struct qb_attr_code code_fq_mctl_ff = QB_CODE(5, 25, 1);
+static struct qb_attr_code code_fq_mctl_va = QB_CODE(5, 26, 1);
+static struct qb_attr_code code_fq_mctl_ps = QB_CODE(5, 27, 1);
+static struct qb_attr_code code_fq_ctx_lower32 = QB_CODE(6, 0, 32);
+static struct qb_attr_code code_fq_ctx_upper32 = QB_CODE(7, 0, 32);
+static struct qb_attr_code code_fq_icid = QB_CODE(8, 0, 15);
+static struct qb_attr_code code_fq_pl = QB_CODE(8, 15, 1);
+static struct qb_attr_code code_fq_vfqid = QB_CODE(9, 0, 24);
+static struct qb_attr_code code_fq_erfqid = QB_CODE(10, 0, 24);
+
+void qbman_fq_attr_clear(struct qbman_attr *a)
+{
+ memset(a, 0, sizeof(*a));
+ attr_type_set(a, qbman_attr_usage_fq);
+}
+
+/* FQ query function for programmable fields */
+int qbman_fq_query(struct qbman_swp *s, u32 fqid, struct qbman_attr *desc)
+{
+ u32 *p;
+ u32 verb, rslt;
+ u32 *d = ATTR32(desc);
+
+ qbman_fq_attr_clear(desc);
+
+ p = qbman_swp_mc_start(s);
+ if (!p)
+ return -EBUSY;
+ qb_attr_code_encode(&code_fq_fqid, p, fqid);
+ p = qbman_swp_mc_complete(s, p, QBMAN_FQ_QUERY);
+
+ /* Decode the outcome */
+ verb = qb_attr_code_decode(&code_generic_verb, p);
+ rslt = qb_attr_code_decode(&code_generic_rslt, p);
+ WARN_ON(verb != QBMAN_FQ_QUERY);
+
+ /* Determine success or failure */
+ if (unlikely(rslt != QBMAN_MC_RSLT_OK)) {
+ pr_err("Query of FQID 0x%x failed, code=0x%02x\n",
+ fqid, rslt);
+ return -EIO;
+ }
+ /*
+ * For the configure, word[0] of the command contains only the WE-mask.
+ * For the query, word[0] of the result contains only the verb/rslt
+ * fields. Skip word[0] in the latter case.
+ */
+ word_copy(&d[1], &p[1], 15);
+ return 0;
+}
+
+void qbman_fq_attr_get_fqctrl(struct qbman_attr *d, u32 *fqctrl)
+{
+ u32 *p = ATTR32(d);
+
+ *fqctrl = qb_attr_code_decode(&code_fq_fqctrl, p);
+}
+
+void qbman_fq_attr_get_cgrid(struct qbman_attr *d, u32 *cgrid)
+{
+ u32 *p = ATTR32(d);
+
+ *cgrid = qb_attr_code_decode(&code_fq_cgrid, p);
+}
+
+void qbman_fq_attr_get_destwq(struct qbman_attr *d, u32 *destwq)
+{
+ u32 *p = ATTR32(d);
+
+ *destwq = qb_attr_code_decode(&code_fq_destwq, p);
+}
+
+void qbman_fq_attr_get_icscred(struct qbman_attr *d, u32 *icscred)
+{
+ u32 *p = ATTR32(d);
+
+ *icscred = qb_attr_code_decode(&code_fq_icscred, p);
+}
+
+static struct qb_attr_code code_tdthresh_exp = QB_CODE(0, 0, 5);
+static struct qb_attr_code code_tdthresh_mant = QB_CODE(0, 5, 8);
+static u32 qbman_thresh_to_value(u32 val)
+{
+ u32 m, e;
+
+ m = qb_attr_code_decode(&code_tdthresh_mant, &val);
+ e = qb_attr_code_decode(&code_tdthresh_exp, &val);
+ return m << e;
+}
+
+void qbman_fq_attr_get_tdthresh(struct qbman_attr *d, u32 *tdthresh)
+{
+ u32 *p = ATTR32(d);
+
+ *tdthresh = qbman_thresh_to_value(qb_attr_code_decode(&code_fq_tdthresh,
+ p));
+}
+
+void qbman_fq_attr_get_oa(struct qbman_attr *d,
+ int *oa_ics, int *oa_cgr, int32_t *oa_len)
+{
+ u32 *p = ATTR32(d);
+
+ *oa_ics = !!qb_attr_code_decode(&code_fq_oa_ics, p);
+ *oa_cgr = !!qb_attr_code_decode(&code_fq_oa_cgr, p);
+ *oa_len = qb_attr_code_makesigned(&code_fq_oa_len,
+ qb_attr_code_decode(&code_fq_oa_len, p));
+}
+
+void qbman_fq_attr_get_mctl(struct qbman_attr *d,
+ int *bdi, int *ff, int *va, int *ps)
+{
+ u32 *p = ATTR32(d);
+
+ *bdi = !!qb_attr_code_decode(&code_fq_mctl_bdi, p);
+ *ff = !!qb_attr_code_decode(&code_fq_mctl_ff, p);
+ *va = !!qb_attr_code_decode(&code_fq_mctl_va, p);
+ *ps = !!qb_attr_code_decode(&code_fq_mctl_ps, p);
+}
+
+void qbman_fq_attr_get_ctx(struct qbman_attr *d, u32 *hi, u32 *lo)
+{
+ u32 *p = ATTR32(d);
+
+ *hi = qb_attr_code_decode(&code_fq_ctx_upper32, p);
+ *lo = qb_attr_code_decode(&code_fq_ctx_lower32, p);
+}
+
+void qbman_fq_attr_get_icid(struct qbman_attr *d, u32 *icid, int *pl)
+{
+ u32 *p = ATTR32(d);
+
+ *icid = qb_attr_code_decode(&code_fq_icid, p);
+ *pl = !!qb_attr_code_decode(&code_fq_pl, p);
+}
+
+void qbman_fq_attr_get_vfqid(struct qbman_attr *d, u32 *vfqid)
+{
+ u32 *p = ATTR32(d);
+
+ *vfqid = qb_attr_code_decode(&code_fq_vfqid, p);
+}
+
+void qbman_fq_attr_get_erfqid(struct qbman_attr *d, u32 *erfqid)
+{
+ u32 *p = ATTR32(d);
+
+ *erfqid = qb_attr_code_decode(&code_fq_erfqid, p);
+}
+
+/* Query FQ Non-Programmalbe Fields */
+static struct qb_attr_code code_fq_np_state = QB_CODE(0, 16, 3);
+static struct qb_attr_code code_fq_np_fe = QB_CODE(0, 19, 1);
+static struct qb_attr_code code_fq_np_x = QB_CODE(0, 20, 1);
+static struct qb_attr_code code_fq_np_r = QB_CODE(0, 21, 1);
+static struct qb_attr_code code_fq_np_oe = QB_CODE(0, 22, 1);
+static struct qb_attr_code code_fq_np_frm_cnt = QB_CODE(6, 0, 24);
+static struct qb_attr_code code_fq_np_byte_cnt = QB_CODE(7, 0, 32);
+
+int qbman_fq_query_state(struct qbman_swp *s, u32 fqid,
+ struct qbman_attr *state)
+{
+ u32 *p;
+ u32 verb, rslt;
+ u32 *d = ATTR32(state);
+
+ qbman_fq_attr_clear(state);
+
+ p = qbman_swp_mc_start(s);
+ if (!p)
+ return -EBUSY;
+ qb_attr_code_encode(&code_fq_fqid, p, fqid);
+ p = qbman_swp_mc_complete(s, p, QBMAN_FQ_QUERY_NP);
+
+ /* Decode the outcome */
+ verb = qb_attr_code_decode(&code_generic_verb, p);
+ rslt = qb_attr_code_decode(&code_generic_rslt, p);
+ WARN_ON(verb != QBMAN_FQ_QUERY_NP);
+
+ /* Determine success or failure */
+ if (unlikely(rslt != QBMAN_MC_RSLT_OK)) {
+ pr_err("Query NP fields of FQID 0x%x failed, code=0x%02x\n",
+ fqid, rslt);
+ return -EIO;
+ }
+ word_copy(&d[0], &p[0], 16);
+ return 0;
+}
+
+u32 qbman_fq_state_schedstate(const struct qbman_attr *state)
+{
+ const u32 *p = ATTR32(state);
+
+ return qb_attr_code_decode(&code_fq_np_state, p);
+}
+
+int qbman_fq_state_force_eligible(const struct qbman_attr *state)
+{
+ const u32 *p = ATTR32(state);
+
+ return !!qb_attr_code_decode(&code_fq_np_fe, p);
+}
+
+int qbman_fq_state_xoff(const struct qbman_attr *state)
+{
+ const u32 *p = ATTR32(state);
+
+ return !!qb_attr_code_decode(&code_fq_np_x, p);
+}
+
+int qbman_fq_state_retirement_pending(const struct qbman_attr *state)
+{
+ const u32 *p = ATTR32(state);
+
+ return !!qb_attr_code_decode(&code_fq_np_r, p);
+}
+
+int qbman_fq_state_overflow_error(const struct qbman_attr *state)
+{
+ const u32 *p = ATTR32(state);
+
+ return !!qb_attr_code_decode(&code_fq_np_oe, p);
+}
+
+u32 qbman_fq_state_frame_count(const struct qbman_attr *state)
+{
+ const u32 *p = ATTR32(state);
+
+ return qb_attr_code_decode(&code_fq_np_frm_cnt, p);
+}
+
+u32 qbman_fq_state_byte_count(const struct qbman_attr *state)
+{
+ const u32 *p = ATTR32(state);
+
+ return qb_attr_code_decode(&code_fq_np_byte_cnt, p);
+}
+
+/* Query CGR */
+static struct qb_attr_code code_cgr_cgid = QB_CODE(0, 16, 16);
+static struct qb_attr_code code_cgr_cscn_wq_en_enter = QB_CODE(2, 0, 1);
+static struct qb_attr_code code_cgr_cscn_wq_en_exit = QB_CODE(2, 1, 1);
+static struct qb_attr_code code_cgr_cscn_wq_icd = QB_CODE(2, 2, 1);
+static struct qb_attr_code code_cgr_mode = QB_CODE(3, 16, 2);
+static struct qb_attr_code code_cgr_rej_cnt_mode = QB_CODE(3, 18, 1);
+static struct qb_attr_code code_cgr_cscn_bdi = QB_CODE(3, 19, 1);
+static struct qb_attr_code code_cgr_cscn_wr_en_enter = QB_CODE(3, 24, 1);
+static struct qb_attr_code code_cgr_cscn_wr_en_exit = QB_CODE(3, 25, 1);
+static struct qb_attr_code code_cgr_cg_wr_ae = QB_CODE(3, 26, 1);
+static struct qb_attr_code code_cgr_cscn_dcp_en = QB_CODE(3, 27, 1);
+static struct qb_attr_code code_cgr_cg_wr_va = QB_CODE(3, 28, 1);
+static struct qb_attr_code code_cgr_i_cnt_wr_en = QB_CODE(4, 0, 1);
+static struct qb_attr_code code_cgr_i_cnt_wr_bnd = QB_CODE(4, 1, 5);
+static struct qb_attr_code code_cgr_td_en = QB_CODE(4, 8, 1);
+static struct qb_attr_code code_cgr_cs_thres = QB_CODE(4, 16, 13);
+static struct qb_attr_code code_cgr_cs_thres_x = QB_CODE(5, 0, 13);
+static struct qb_attr_code code_cgr_td_thres = QB_CODE(5, 16, 13);
+static struct qb_attr_code code_cgr_cscn_tdcp = QB_CODE(6, 0, 16);
+static struct qb_attr_code code_cgr_cscn_wqid = QB_CODE(6, 16, 16);
+static struct qb_attr_code code_cgr_cscn_vcgid = QB_CODE(7, 0, 16);
+static struct qb_attr_code code_cgr_cg_icid = QB_CODE(7, 16, 15);
+static struct qb_attr_code code_cgr_cg_pl = QB_CODE(7, 31, 1);
+static struct qb_attr_code code_cgr_cg_wr_addr_lo = QB_CODE(8, 0, 32);
+static struct qb_attr_code code_cgr_cg_wr_addr_hi = QB_CODE(9, 0, 32);
+static struct qb_attr_code code_cgr_cscn_ctx_lo = QB_CODE(10, 0, 32);
+static struct qb_attr_code code_cgr_cscn_ctx_hi = QB_CODE(11, 0, 32);
+
+void qbman_cgr_attr_clear(struct qbman_attr *a)
+{
+ memset(a, 0, sizeof(*a));
+ attr_type_set(a, qbman_attr_usage_cgr);
+}
+
+int qbman_cgr_query(struct qbman_swp *s, u32 cgid, struct qbman_attr *attr)
+{
+ u32 *p;
+ u32 verb, rslt;
+ u32 *d[2];
+ int i;
+ u32 query_verb;
+
+ d[0] = ATTR32(attr);
+ d[1] = ATTR32_1(attr);
+
+ qbman_cgr_attr_clear(attr);
+
+ for (i = 0; i < 2; i++) {
+ p = qbman_swp_mc_start(s);
+ if (!p)
+ return -EBUSY;
+ query_verb = i ? QBMAN_WRED_QUERY : QBMAN_CGR_QUERY;
+
+ qb_attr_code_encode(&code_cgr_cgid, p, cgid);
+ p = qbman_swp_mc_complete(s, p, p[0] | query_verb);
+
+ /* Decode the outcome */
+ verb = qb_attr_code_decode(&code_generic_verb, p);
+ rslt = qb_attr_code_decode(&code_generic_rslt, p);
+ WARN_ON(verb != query_verb);
+
+ /* Determine success or failure */
+ if (unlikely(rslt != QBMAN_MC_RSLT_OK)) {
+ pr_err("Query CGID 0x%x failed,", cgid);
+ pr_err(" verb=0x%02x, code=0x%02x\n", verb, rslt);
+ return -EIO;
+ }
+ /* For the configure, word[0] of the command contains only the
+ * verb/cgid. For the query, word[0] of the result contains
+ * only the verb/rslt fields. Skip word[0] in the latter case.
+ */
+ word_copy(&d[i][1], &p[1], 15);
+ }
+ return 0;
+}
+
+void qbman_cgr_attr_get_ctl1(struct qbman_attr *d, int *cscn_wq_en_enter,
+ int *cscn_wq_en_exit, int *cscn_wq_icd)
+ {
+ u32 *p = ATTR32(d);
+ *cscn_wq_en_enter = !!qb_attr_code_decode(&code_cgr_cscn_wq_en_enter,
+ p);
+ *cscn_wq_en_exit = !!qb_attr_code_decode(&code_cgr_cscn_wq_en_exit, p);
+ *cscn_wq_icd = !!qb_attr_code_decode(&code_cgr_cscn_wq_icd, p);
+}
+
+void qbman_cgr_attr_get_mode(struct qbman_attr *d, u32 *mode,
+ int *rej_cnt_mode, int *cscn_bdi)
+{
+ u32 *p = ATTR32(d);
+ *mode = qb_attr_code_decode(&code_cgr_mode, p);
+ *rej_cnt_mode = !!qb_attr_code_decode(&code_cgr_rej_cnt_mode, p);
+ *cscn_bdi = !!qb_attr_code_decode(&code_cgr_cscn_bdi, p);
+}
+
+void qbman_cgr_attr_get_ctl2(struct qbman_attr *d, int *cscn_wr_en_enter,
+ int *cscn_wr_en_exit, int *cg_wr_ae,
+ int *cscn_dcp_en, int *cg_wr_va)
+{
+ u32 *p = ATTR32(d);
+ *cscn_wr_en_enter = !!qb_attr_code_decode(&code_cgr_cscn_wr_en_enter,
+ p);
+ *cscn_wr_en_exit = !!qb_attr_code_decode(&code_cgr_cscn_wr_en_exit, p);
+ *cg_wr_ae = !!qb_attr_code_decode(&code_cgr_cg_wr_ae, p);
+ *cscn_dcp_en = !!qb_attr_code_decode(&code_cgr_cscn_dcp_en, p);
+ *cg_wr_va = !!qb_attr_code_decode(&code_cgr_cg_wr_va, p);
+}
+
+void qbman_cgr_attr_get_iwc(struct qbman_attr *d, int *i_cnt_wr_en,
+ u32 *i_cnt_wr_bnd)
+{
+ u32 *p = ATTR32(d);
+ *i_cnt_wr_en = !!qb_attr_code_decode(&code_cgr_i_cnt_wr_en, p);
+ *i_cnt_wr_bnd = qb_attr_code_decode(&code_cgr_i_cnt_wr_bnd, p);
+}
+
+void qbman_cgr_attr_get_tdc(struct qbman_attr *d, int *td_en)
+{
+ u32 *p = ATTR32(d);
+ *td_en = !!qb_attr_code_decode(&code_cgr_td_en, p);
+}
+
+void qbman_cgr_attr_get_cs_thres(struct qbman_attr *d, u32 *cs_thres)
+{
+ u32 *p = ATTR32(d);
+ *cs_thres = qbman_thresh_to_value(qb_attr_code_decode(
+ &code_cgr_cs_thres, p));
+}
+
+void qbman_cgr_attr_get_cs_thres_x(struct qbman_attr *d,
+ u32 *cs_thres_x)
+{
+ u32 *p = ATTR32(d);
+ *cs_thres_x = qbman_thresh_to_value(qb_attr_code_decode(
+ &code_cgr_cs_thres_x, p));
+}
+
+void qbman_cgr_attr_get_td_thres(struct qbman_attr *d, u32 *td_thres)
+{
+ u32 *p = ATTR32(d);
+ *td_thres = qbman_thresh_to_value(qb_attr_code_decode(
+ &code_cgr_td_thres, p));
+}
+
+void qbman_cgr_attr_get_cscn_tdcp(struct qbman_attr *d, u32 *cscn_tdcp)
+{
+ u32 *p = ATTR32(d);
+ *cscn_tdcp = qb_attr_code_decode(&code_cgr_cscn_tdcp, p);
+}
+
+void qbman_cgr_attr_get_cscn_wqid(struct qbman_attr *d, u32 *cscn_wqid)
+{
+ u32 *p = ATTR32(d);
+ *cscn_wqid = qb_attr_code_decode(&code_cgr_cscn_wqid, p);
+}
+
+void qbman_cgr_attr_get_cscn_vcgid(struct qbman_attr *d,
+ u32 *cscn_vcgid)
+{
+ u32 *p = ATTR32(d);
+ *cscn_vcgid = qb_attr_code_decode(&code_cgr_cscn_vcgid, p);
+}
+
+void qbman_cgr_attr_get_cg_icid(struct qbman_attr *d, u32 *icid,
+ int *pl)
+{
+ u32 *p = ATTR32(d);
+ *icid = qb_attr_code_decode(&code_cgr_cg_icid, p);
+ *pl = !!qb_attr_code_decode(&code_cgr_cg_pl, p);
+}
+
+void qbman_cgr_attr_get_cg_wr_addr(struct qbman_attr *d,
+ u64 *cg_wr_addr)
+{
+ u32 *p = ATTR32(d);
+ *cg_wr_addr = ((u64)qb_attr_code_decode(&code_cgr_cg_wr_addr_hi,
+ p) << 32) |
+ (u64)qb_attr_code_decode(&code_cgr_cg_wr_addr_lo,
+ p);
+}
+
+void qbman_cgr_attr_get_cscn_ctx(struct qbman_attr *d, u64 *cscn_ctx)
+{
+ u32 *p = ATTR32(d);
+ *cscn_ctx = ((u64)qb_attr_code_decode(&code_cgr_cscn_ctx_hi, p)
+ << 32) |
+ (u64)qb_attr_code_decode(&code_cgr_cscn_ctx_lo, p);
+}
+
+#define WRED_EDP_WORD(n) (18 + (n) / 4)
+#define WRED_EDP_OFFSET(n) (8 * ((n) % 4))
+#define WRED_PARM_DP_WORD(n) ((n) + 20)
+#define WRED_WE_EDP(n) (16 + (n) * 2)
+#define WRED_WE_PARM_DP(n) (17 + (n) * 2)
+void qbman_cgr_attr_wred_get_edp(struct qbman_attr *d, u32 idx,
+ int *edp)
+{
+ u32 *p = ATTR32(d);
+ struct qb_attr_code code_wred_edp = QB_CODE(WRED_EDP_WORD(idx),
+ WRED_EDP_OFFSET(idx), 8);
+ *edp = (int)qb_attr_code_decode(&code_wred_edp, p);
+}
+
+void qbman_cgr_attr_wred_dp_decompose(u32 dp, u64 *minth,
+ u64 *maxth, u8 *maxp)
+{
+ u8 ma, mn, step_i, step_s, pn;
+
+ ma = (u8)(dp >> 24);
+ mn = (u8)(dp >> 19) & 0x1f;
+ step_i = (u8)(dp >> 11);
+ step_s = (u8)(dp >> 6) & 0x1f;
+ pn = (u8)dp & 0x3f;
+
+ *maxp = ((pn << 2) * 100) / 256;
+
+ if (mn == 0)
+ *maxth = ma;
+ else
+ *maxth = ((ma + 256) * (1 << (mn - 1)));
+
+ if (step_s == 0)
+ *minth = *maxth - step_i;
+ else
+ *minth = *maxth - (256 + step_i) * (1 << (step_s - 1));
+}
+
+void qbman_cgr_attr_wred_get_parm_dp(struct qbman_attr *d, u32 idx,
+ u32 *dp)
+{
+ u32 *p = ATTR32(d);
+ struct qb_attr_code code_wred_parm_dp = QB_CODE(WRED_PARM_DP_WORD(idx),
+ 0, 8);
+ *dp = qb_attr_code_decode(&code_wred_parm_dp, p);
+}
+
+/* Query CGR/CCGR/CQ statistics */
+static struct qb_attr_code code_cgr_stat_ct = QB_CODE(4, 0, 32);
+static struct qb_attr_code code_cgr_stat_frame_cnt_lo = QB_CODE(4, 0, 32);
+static struct qb_attr_code code_cgr_stat_frame_cnt_hi = QB_CODE(5, 0, 8);
+static struct qb_attr_code code_cgr_stat_byte_cnt_lo = QB_CODE(6, 0, 32);
+static struct qb_attr_code code_cgr_stat_byte_cnt_hi = QB_CODE(7, 0, 16);
+static int qbman_cgr_statistics_query(struct qbman_swp *s, u32 cgid,
+ int clear, u32 command_type,
+ u64 *frame_cnt, u64 *byte_cnt)
+{
+ u32 *p;
+ u32 verb, rslt;
+ u32 query_verb;
+ u32 hi, lo;
+
+ p = qbman_swp_mc_start(s);
+ if (!p)
+ return -EBUSY;
+
+ qb_attr_code_encode(&code_cgr_cgid, p, cgid);
+ if (command_type < 2)
+ qb_attr_code_encode(&code_cgr_stat_ct, p, command_type);
+ query_verb = clear ?
+ QBMAN_CGR_STAT_QUERY_CLR : QBMAN_CGR_STAT_QUERY;
+ p = qbman_swp_mc_complete(s, p, p[0] | query_verb);
+
+ /* Decode the outcome */
+ verb = qb_attr_code_decode(&code_generic_verb, p);
+ rslt = qb_attr_code_decode(&code_generic_rslt, p);
+ WARN_ON(verb != query_verb);
+
+ /* Determine success or failure */
+ if (unlikely(rslt != QBMAN_MC_RSLT_OK)) {
+ pr_err("Query statistics of CGID 0x%x failed,", cgid);
+ pr_err(" verb=0x%02x code=0x%02x\n", verb, rslt);
+ return -EIO;
+ }
+
+ if (*frame_cnt) {
+ hi = qb_attr_code_decode(&code_cgr_stat_frame_cnt_hi, p);
+ lo = qb_attr_code_decode(&code_cgr_stat_frame_cnt_lo, p);
+ *frame_cnt = ((u64)hi << 32) | (u64)lo;
+ }
+ if (*byte_cnt) {
+ hi = qb_attr_code_decode(&code_cgr_stat_byte_cnt_hi, p);
+ lo = qb_attr_code_decode(&code_cgr_stat_byte_cnt_lo, p);
+ *byte_cnt = ((u64)hi << 32) | (u64)lo;
+ }
+
+ return 0;
+}
+
+int qbman_cgr_reject_statistics(struct qbman_swp *s, u32 cgid, int clear,
+ u64 *frame_cnt, u64 *byte_cnt)
+{
+ return qbman_cgr_statistics_query(s, cgid, clear, 0xff,
+ frame_cnt, byte_cnt);
+}
+
+int qbman_ccgr_reject_statistics(struct qbman_swp *s, u32 cgid, int clear,
+ u64 *frame_cnt, u64 *byte_cnt)
+{
+ return qbman_cgr_statistics_query(s, cgid, clear, 1,
+ frame_cnt, byte_cnt);
+}
+
+int qbman_cq_dequeue_statistics(struct qbman_swp *s, u32 cgid, int clear,
+ u64 *frame_cnt, u64 *byte_cnt)
+{
+ return qbman_cgr_statistics_query(s, cgid, clear, 0,
+ frame_cnt, byte_cnt);
+}
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/dpio/qbman_debug.h
@@ -0,0 +1,136 @@
+/* Copyright (C) 2015 Freescale Semiconductor, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+struct qbman_attr {
+ u32 dont_manipulate_directly[40];
+};
+
+/* Buffer pool query commands */
+int qbman_bp_query(struct qbman_swp *s, u32 bpid,
+ struct qbman_attr *a);
+void qbman_bp_attr_get_bdi(struct qbman_attr *a, int *bdi, int *va, int *wae);
+void qbman_bp_attr_get_swdet(struct qbman_attr *a, u32 *swdet);
+void qbman_bp_attr_get_swdxt(struct qbman_attr *a, u32 *swdxt);
+void qbman_bp_attr_get_hwdet(struct qbman_attr *a, u32 *hwdet);
+void qbman_bp_attr_get_hwdxt(struct qbman_attr *a, u32 *hwdxt);
+void qbman_bp_attr_get_swset(struct qbman_attr *a, u32 *swset);
+void qbman_bp_attr_get_swsxt(struct qbman_attr *a, u32 *swsxt);
+void qbman_bp_attr_get_vbpid(struct qbman_attr *a, u32 *vbpid);
+void qbman_bp_attr_get_icid(struct qbman_attr *a, u32 *icid, int *pl);
+void qbman_bp_attr_get_bpscn_addr(struct qbman_attr *a, u64 *bpscn_addr);
+void qbman_bp_attr_get_bpscn_ctx(struct qbman_attr *a, u64 *bpscn_ctx);
+void qbman_bp_attr_get_hw_targ(struct qbman_attr *a, u32 *hw_targ);
+int qbman_bp_info_has_free_bufs(struct qbman_attr *a);
+int qbman_bp_info_is_depleted(struct qbman_attr *a);
+int qbman_bp_info_is_surplus(struct qbman_attr *a);
+u32 qbman_bp_info_num_free_bufs(struct qbman_attr *a);
+u32 qbman_bp_info_hdptr(struct qbman_attr *a);
+u32 qbman_bp_info_sdcnt(struct qbman_attr *a);
+u32 qbman_bp_info_hdcnt(struct qbman_attr *a);
+u32 qbman_bp_info_sscnt(struct qbman_attr *a);
+
+/* FQ query function for programmable fields */
+int qbman_fq_query(struct qbman_swp *s, u32 fqid,
+ struct qbman_attr *desc);
+void qbman_fq_attr_get_fqctrl(struct qbman_attr *d, u32 *fqctrl);
+void qbman_fq_attr_get_cgrid(struct qbman_attr *d, u32 *cgrid);
+void qbman_fq_attr_get_destwq(struct qbman_attr *d, u32 *destwq);
+void qbman_fq_attr_get_icscred(struct qbman_attr *d, u32 *icscred);
+void qbman_fq_attr_get_tdthresh(struct qbman_attr *d, u32 *tdthresh);
+void qbman_fq_attr_get_oa(struct qbman_attr *d,
+ int *oa_ics, int *oa_cgr, int32_t *oa_len);
+void qbman_fq_attr_get_mctl(struct qbman_attr *d,
+ int *bdi, int *ff, int *va, int *ps);
+void qbman_fq_attr_get_ctx(struct qbman_attr *d, u32 *hi, u32 *lo);
+void qbman_fq_attr_get_icid(struct qbman_attr *d, u32 *icid, int *pl);
+void qbman_fq_attr_get_vfqid(struct qbman_attr *d, u32 *vfqid);
+void qbman_fq_attr_get_erfqid(struct qbman_attr *d, u32 *erfqid);
+
+/* FQ query command for non-programmable fields*/
+enum qbman_fq_schedstate_e {
+ qbman_fq_schedstate_oos = 0,
+ qbman_fq_schedstate_retired,
+ qbman_fq_schedstate_tentatively_scheduled,
+ qbman_fq_schedstate_truly_scheduled,
+ qbman_fq_schedstate_parked,
+ qbman_fq_schedstate_held_active,
+};
+
+int qbman_fq_query_state(struct qbman_swp *s, u32 fqid,
+ struct qbman_attr *state);
+u32 qbman_fq_state_schedstate(const struct qbman_attr *state);
+int qbman_fq_state_force_eligible(const struct qbman_attr *state);
+int qbman_fq_state_xoff(const struct qbman_attr *state);
+int qbman_fq_state_retirement_pending(const struct qbman_attr *state);
+int qbman_fq_state_overflow_error(const struct qbman_attr *state);
+u32 qbman_fq_state_frame_count(const struct qbman_attr *state);
+u32 qbman_fq_state_byte_count(const struct qbman_attr *state);
+
+/* CGR query */
+int qbman_cgr_query(struct qbman_swp *s, u32 cgid,
+ struct qbman_attr *attr);
+void qbman_cgr_attr_get_ctl1(struct qbman_attr *d, int *cscn_wq_en_enter,
+ int *cscn_wq_en_exit, int *cscn_wq_icd);
+void qbman_cgr_attr_get_mode(struct qbman_attr *d, u32 *mode,
+ int *rej_cnt_mode, int *cscn_bdi);
+void qbman_cgr_attr_get_ctl2(struct qbman_attr *d, int *cscn_wr_en_enter,
+ int *cscn_wr_en_exit, int *cg_wr_ae,
+ int *cscn_dcp_en, int *cg_wr_va);
+void qbman_cgr_attr_get_iwc(struct qbman_attr *d, int *i_cnt_wr_en,
+ u32 *i_cnt_wr_bnd);
+void qbman_cgr_attr_get_tdc(struct qbman_attr *d, int *td_en);
+void qbman_cgr_attr_get_cs_thres(struct qbman_attr *d, u32 *cs_thres);
+void qbman_cgr_attr_get_cs_thres_x(struct qbman_attr *d,
+ u32 *cs_thres_x);
+void qbman_cgr_attr_get_td_thres(struct qbman_attr *d, u32 *td_thres);
+void qbman_cgr_attr_get_cscn_tdcp(struct qbman_attr *d, u32 *cscn_tdcp);
+void qbman_cgr_attr_get_cscn_wqid(struct qbman_attr *d, u32 *cscn_wqid);
+void qbman_cgr_attr_get_cscn_vcgid(struct qbman_attr *d,
+ u32 *cscn_vcgid);
+void qbman_cgr_attr_get_cg_icid(struct qbman_attr *d, u32 *icid,
+ int *pl);
+void qbman_cgr_attr_get_cg_wr_addr(struct qbman_attr *d,
+ u64 *cg_wr_addr);
+void qbman_cgr_attr_get_cscn_ctx(struct qbman_attr *d, u64 *cscn_ctx);
+void qbman_cgr_attr_wred_get_edp(struct qbman_attr *d, u32 idx,
+ int *edp);
+void qbman_cgr_attr_wred_dp_decompose(u32 dp, u64 *minth,
+ u64 *maxth, u8 *maxp);
+void qbman_cgr_attr_wred_get_parm_dp(struct qbman_attr *d, u32 idx,
+ u32 *dp);
+
+/* CGR/CCGR/CQ statistics query */
+int qbman_cgr_reject_statistics(struct qbman_swp *s, u32 cgid, int clear,
+ u64 *frame_cnt, u64 *byte_cnt);
+int qbman_ccgr_reject_statistics(struct qbman_swp *s, u32 cgid, int clear,
+ u64 *frame_cnt, u64 *byte_cnt);
+int qbman_cq_dequeue_statistics(struct qbman_swp *s, u32 cgid, int clear,
+ u64 *frame_cnt, u64 *byte_cnt);
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/dpio/qbman_private.h
@@ -0,0 +1,171 @@
+/* Copyright (C) 2014 Freescale Semiconductor, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/* Perform extra checking */
+#define QBMAN_CHECKING
+
+/* To maximise the amount of logic that is common between the Linux driver and
+ * other targets (such as the embedded MC firmware), we pivot here between the
+ * inclusion of two platform-specific headers.
+ *
+ * The first, qbman_sys_decl.h, includes any and all required system headers as
+ * well as providing any definitions for the purposes of compatibility. The
+ * second, qbman_sys.h, is where platform-specific routines go.
+ *
+ * The point of the split is that the platform-independent code (including this
+ * header) may depend on platform-specific declarations, yet other
+ * platform-specific routines may depend on platform-independent definitions.
+ */
+
+#define QMAN_REV_4000 0x04000000
+#define QMAN_REV_4100 0x04010000
+#define QMAN_REV_4101 0x04010001
+
+/* When things go wrong, it is a convenient trick to insert a few FOO()
+ * statements in the code to trace progress. TODO: remove this once we are
+ * hacking the code less actively.
+ */
+#define FOO() fsl_os_print("FOO: %s:%d\n", __FILE__, __LINE__)
+
+/* Any time there is a register interface which we poll on, this provides a
+ * "break after x iterations" scheme for it. It's handy for debugging, eg.
+ * where you don't want millions of lines of log output from a polling loop
+ * that won't, because such things tend to drown out the earlier log output
+ * that might explain what caused the problem. (NB: put ";" after each macro!)
+ * TODO: we should probably remove this once we're done sanitising the
+ * simulator...
+ */
+#define DBG_POLL_START(loopvar) (loopvar = 1000)
+#define DBG_POLL_CHECK(loopvar) \
+ do {if (!((loopvar)--)) WARN_ON(1); } while (0)
+
+/* For CCSR or portal-CINH registers that contain fields at arbitrary offsets
+ * and widths, these macro-generated encode/decode/isolate/remove inlines can
+ * be used.
+ *
+ * Eg. to "d"ecode a 14-bit field out of a register (into a "u16" type),
+ * where the field is located 3 bits "up" from the least-significant bit of the
+ * register (ie. the field location within the 32-bit register corresponds to a
+ * mask of 0x0001fff8), you would do;
+ * u16 field = d32_u16(3, 14, reg_value);
+ *
+ * Or to "e"ncode a 1-bit boolean value (input type is "int", zero is FALSE,
+ * non-zero is TRUE, so must convert all non-zero inputs to 1, hence the "!!"
+ * operator) into a register at bit location 0x00080000 (19 bits "in" from the
+ * LS bit), do;
+ * reg_value |= e32_int(19, 1, !!field);
+ *
+ * If you wish to read-modify-write a register, such that you leave the 14-bit
+ * field as-is but have all other fields set to zero, then "i"solate the 14-bit
+ * value using;
+ * reg_value = i32_u16(3, 14, reg_value);
+ *
+ * Alternatively, you could "r"emove the 1-bit boolean field (setting it to
+ * zero) but leaving all other fields as-is;
+ * reg_val = r32_int(19, 1, reg_value);
+ *
+ */
+#define MAKE_MASK32(width) (width == 32 ? 0xffffffff : \
+ (u32)((1 << width) - 1))
+#define DECLARE_CODEC32(t) \
+static inline u32 e32_##t(u32 lsoffset, u32 width, t val) \
+{ \
+ WARN_ON(width > (sizeof(t) * 8)); \
+ return ((u32)val & MAKE_MASK32(width)) << lsoffset; \
+} \
+static inline t d32_##t(u32 lsoffset, u32 width, u32 val) \
+{ \
+ WARN_ON(width > (sizeof(t) * 8)); \
+ return (t)((val >> lsoffset) & MAKE_MASK32(width)); \
+} \
+static inline u32 i32_##t(u32 lsoffset, u32 width, \
+ u32 val) \
+{ \
+ WARN_ON(width > (sizeof(t) * 8)); \
+ return e32_##t(lsoffset, width, d32_##t(lsoffset, width, val)); \
+} \
+static inline u32 r32_##t(u32 lsoffset, u32 width, \
+ u32 val) \
+{ \
+ WARN_ON(width > (sizeof(t) * 8)); \
+ return ~(MAKE_MASK32(width) << lsoffset) & val; \
+}
+DECLARE_CODEC32(u32)
+DECLARE_CODEC32(u16)
+DECLARE_CODEC32(u8)
+DECLARE_CODEC32(int)
+
+ /*********************/
+ /* Debugging assists */
+ /*********************/
+
+static inline void __hexdump(unsigned long start, unsigned long end,
+ unsigned long p, size_t sz,
+ const unsigned char *c)
+{
+ while (start < end) {
+ unsigned int pos = 0;
+ char buf[64];
+ int nl = 0;
+
+ pos += sprintf(buf + pos, "%08lx: ", start);
+ do {
+ if ((start < p) || (start >= (p + sz)))
+ pos += sprintf(buf + pos, "..");
+ else
+ pos += sprintf(buf + pos, "%02x", *(c++));
+ if (!(++start & 15)) {
+ buf[pos++] = '\n';
+ nl = 1;
+ } else {
+ nl = 0;
+ if (!(start & 1))
+ buf[pos++] = ' ';
+ if (!(start & 3))
+ buf[pos++] = ' ';
+ }
+ } while (start & 15);
+ if (!nl)
+ buf[pos++] = '\n';
+ buf[pos] = '\0';
+ pr_info("%s", buf);
+ }
+}
+
+static inline void hexdump(const void *ptr, size_t sz)
+{
+ unsigned long p = (unsigned long)ptr;
+ unsigned long start = p & ~15ul;
+ unsigned long end = (p + sz + 15) & ~15ul;
+ const unsigned char *c = ptr;
+
+ __hexdump(start, end, p, sz, c);
+}
--- a/drivers/staging/fsl-mc/bus/dpmcp-cmd.h
+++ b/drivers/staging/fsl-mc/bus/dpmcp-cmd.h
@@ -1,4 +1,5 @@
-/* Copyright 2013-2016 Freescale Semiconductor Inc.
+/*
+ * Copyright 2013-2016 Freescale Semiconductor Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@@ -11,7 +12,6 @@
* names of any contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
- *
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") as published by the Free Software
* Foundation, either version 2 of that License or (at your option) any
@@ -33,108 +33,24 @@
#define _FSL_DPMCP_CMD_H
/* Minimal supported DPMCP Version */
-#define DPMCP_MIN_VER_MAJOR 3
-#define DPMCP_MIN_VER_MINOR 0
-
-/* Command IDs */
-#define DPMCP_CMDID_CLOSE 0x800
-#define DPMCP_CMDID_OPEN 0x80b
-#define DPMCP_CMDID_CREATE 0x90b
-#define DPMCP_CMDID_DESTROY 0x900
-
-#define DPMCP_CMDID_GET_ATTR 0x004
-#define DPMCP_CMDID_RESET 0x005
-
-#define DPMCP_CMDID_SET_IRQ 0x010
-#define DPMCP_CMDID_GET_IRQ 0x011
-#define DPMCP_CMDID_SET_IRQ_ENABLE 0x012
-#define DPMCP_CMDID_GET_IRQ_ENABLE 0x013
-#define DPMCP_CMDID_SET_IRQ_MASK 0x014
-#define DPMCP_CMDID_GET_IRQ_MASK 0x015
-#define DPMCP_CMDID_GET_IRQ_STATUS 0x016
-
-struct dpmcp_cmd_open {
- __le32 dpmcp_id;
-};
-
-struct dpmcp_cmd_create {
- __le32 portal_id;
-};
-
-struct dpmcp_cmd_set_irq {
- /* cmd word 0 */
- u8 irq_index;
- u8 pad[3];
- __le32 irq_val;
- /* cmd word 1 */
- __le64 irq_addr;
- /* cmd word 2 */
- __le32 irq_num;
-};
-
-struct dpmcp_cmd_get_irq {
- __le32 pad;
- u8 irq_index;
-};
-
-struct dpmcp_rsp_get_irq {
- /* cmd word 0 */
- __le32 irq_val;
- __le32 pad;
- /* cmd word 1 */
- __le64 irq_paddr;
- /* cmd word 2 */
- __le32 irq_num;
- __le32 type;
-};
+#define DPMCP_MIN_VER_MAJOR 3
+#define DPMCP_MIN_VER_MINOR 0
-#define DPMCP_ENABLE 0x1
+/* Command versioning */
+#define DPMCP_CMD_BASE_VERSION 1
+#define DPMCP_CMD_ID_OFFSET 4
-struct dpmcp_cmd_set_irq_enable {
- u8 enable;
- u8 pad[3];
- u8 irq_index;
-};
+#define DPMCP_CMD(id) ((id << DPMCP_CMD_ID_OFFSET) | DPMCP_CMD_BASE_VERSION)
-struct dpmcp_cmd_get_irq_enable {
- __le32 pad;
- u8 irq_index;
-};
-
-struct dpmcp_rsp_get_irq_enable {
- u8 enabled;
-};
-
-struct dpmcp_cmd_set_irq_mask {
- __le32 mask;
- u8 irq_index;
-};
-
-struct dpmcp_cmd_get_irq_mask {
- __le32 pad;
- u8 irq_index;
-};
-
-struct dpmcp_rsp_get_irq_mask {
- __le32 mask;
-};
+/* Command IDs */
+#define DPMCP_CMDID_CLOSE DPMCP_CMD(0x800)
+#define DPMCP_CMDID_OPEN DPMCP_CMD(0x80b)
+#define DPMCP_CMDID_GET_API_VERSION DPMCP_CMD(0xa0b)
-struct dpmcp_cmd_get_irq_status {
- __le32 status;
- u8 irq_index;
-};
+#define DPMCP_CMDID_RESET DPMCP_CMD(0x005)
-struct dpmcp_rsp_get_irq_status {
- __le32 status;
-};
-
-struct dpmcp_rsp_get_attributes {
- /* response word 0 */
- __le32 pad;
- __le32 id;
- /* response word 1 */
- __le16 version_major;
- __le16 version_minor;
+struct dpmcp_cmd_open {
+ __le32 dpmcp_id;
};
#endif /* _FSL_DPMCP_CMD_H */
--- a/drivers/staging/fsl-mc/bus/dpmcp.c
+++ b/drivers/staging/fsl-mc/bus/dpmcp.c
@@ -1,4 +1,5 @@
-/* Copyright 2013-2016 Freescale Semiconductor Inc.
+/*
+ * Copyright 2013-2016 Freescale Semiconductor Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@@ -11,7 +12,6 @@
* names of any contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
- *
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") as published by the Free Software
* Foundation, either version 2 of that License or (at your option) any
@@ -104,76 +104,6 @@ int dpmcp_close(struct fsl_mc_io *mc_io,
}
/**
- * dpmcp_create() - Create the DPMCP object.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @cfg: Configuration structure
- * @token: Returned token; use in subsequent API calls
- *
- * Create the DPMCP object, allocate required resources and
- * perform required initialization.
- *
- * The object can be created either by declaring it in the
- * DPL file, or by calling this function.
- * This function returns a unique authentication token,
- * associated with the specific object ID and the specific MC
- * portal; this token must be used in all subsequent calls to
- * this specific object. For objects that are created using the
- * DPL file, call dpmcp_open function to get an authentication
- * token first.
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpmcp_create(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- const struct dpmcp_cfg *cfg,
- u16 *token)
-{
- struct mc_command cmd = { 0 };
- struct dpmcp_cmd_create *cmd_params;
-
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPMCP_CMDID_CREATE,
- cmd_flags, 0);
- cmd_params = (struct dpmcp_cmd_create *)cmd.params;
- cmd_params->portal_id = cpu_to_le32(cfg->portal_id);
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- *token = mc_cmd_hdr_read_token(&cmd);
-
- return 0;
-}
-
-/**
- * dpmcp_destroy() - Destroy the DPMCP object and release all its resources.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPMCP object
- *
- * Return: '0' on Success; error code otherwise.
- */
-int dpmcp_destroy(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token)
-{
- struct mc_command cmd = { 0 };
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPMCP_CMDID_DESTROY,
- cmd_flags, token);
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
* dpmcp_reset() - Reset the DPMCP, returns the object to initial state.
* @mc_io: Pointer to MC portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
@@ -196,309 +126,33 @@ int dpmcp_reset(struct fsl_mc_io *mc_io,
}
/**
- * dpmcp_set_irq() - Set IRQ information for the DPMCP to trigger an interrupt.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPMCP object
- * @irq_index: Identifies the interrupt index to configure
- * @irq_cfg: IRQ configuration
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpmcp_set_irq(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- struct dpmcp_irq_cfg *irq_cfg)
-{
- struct mc_command cmd = { 0 };
- struct dpmcp_cmd_set_irq *cmd_params;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPMCP_CMDID_SET_IRQ,
- cmd_flags, token);
- cmd_params = (struct dpmcp_cmd_set_irq *)cmd.params;
- cmd_params->irq_index = irq_index;
- cmd_params->irq_val = cpu_to_le32(irq_cfg->val);
- cmd_params->irq_addr = cpu_to_le64(irq_cfg->paddr);
- cmd_params->irq_num = cpu_to_le32(irq_cfg->irq_num);
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpmcp_get_irq() - Get IRQ information from the DPMCP.
- * @mc_io: Pointer to MC portal's I/O object
+ * dpmcp_get_api_version - Get Data Path Management Command Portal API version
+ * @mc_io: Pointer to Mc portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPMCP object
- * @irq_index: The interrupt index to configure
- * @type: Interrupt type: 0 represents message interrupt
- * type (both irq_addr and irq_val are valid)
- * @irq_cfg: IRQ attributes
+ * @major_ver: Major version of Data Path Management Command Portal API
+ * @minor_ver: Minor version of Data Path Management Command Portal API
*
* Return: '0' on Success; Error code otherwise.
*/
-int dpmcp_get_irq(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- int *type,
- struct dpmcp_irq_cfg *irq_cfg)
+int dpmcp_get_api_version(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 *major_ver,
+ u16 *minor_ver)
{
struct mc_command cmd = { 0 };
- struct dpmcp_cmd_get_irq *cmd_params;
- struct dpmcp_rsp_get_irq *rsp_params;
int err;
/* prepare command */
- cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_IRQ,
- cmd_flags, token);
- cmd_params = (struct dpmcp_cmd_get_irq *)cmd.params;
- cmd_params->irq_index = irq_index;
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpmcp_rsp_get_irq *)cmd.params;
- irq_cfg->val = le32_to_cpu(rsp_params->irq_val);
- irq_cfg->paddr = le64_to_cpu(rsp_params->irq_paddr);
- irq_cfg->irq_num = le32_to_cpu(rsp_params->irq_num);
- *type = le32_to_cpu(rsp_params->type);
- return 0;
-}
-
-/**
- * dpmcp_set_irq_enable() - Set overall interrupt state.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPMCP object
- * @irq_index: The interrupt index to configure
- * @en: Interrupt state - enable = 1, disable = 0
- *
- * Allows GPP software to control when interrupts are generated.
- * Each interrupt can have up to 32 causes. The enable/disable control's the
- * overall interrupt state. if the interrupt is disabled no causes will cause
- * an interrupt.
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpmcp_set_irq_enable(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u8 en)
-{
- struct mc_command cmd = { 0 };
- struct dpmcp_cmd_set_irq_enable *cmd_params;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPMCP_CMDID_SET_IRQ_ENABLE,
- cmd_flags, token);
- cmd_params = (struct dpmcp_cmd_set_irq_enable *)cmd.params;
- cmd_params->enable = en & DPMCP_ENABLE;
- cmd_params->irq_index = irq_index;
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpmcp_get_irq_enable() - Get overall interrupt state
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPMCP object
- * @irq_index: The interrupt index to configure
- * @en: Returned interrupt state - enable = 1, disable = 0
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpmcp_get_irq_enable(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u8 *en)
-{
- struct mc_command cmd = { 0 };
- struct dpmcp_cmd_get_irq_enable *cmd_params;
- struct dpmcp_rsp_get_irq_enable *rsp_params;
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_IRQ_ENABLE,
- cmd_flags, token);
- cmd_params = (struct dpmcp_cmd_get_irq_enable *)cmd.params;
- cmd_params->irq_index = irq_index;
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpmcp_rsp_get_irq_enable *)cmd.params;
- *en = rsp_params->enabled & DPMCP_ENABLE;
- return 0;
-}
-
-/**
- * dpmcp_set_irq_mask() - Set interrupt mask.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPMCP object
- * @irq_index: The interrupt index to configure
- * @mask: Event mask to trigger interrupt;
- * each bit:
- * 0 = ignore event
- * 1 = consider event for asserting IRQ
- *
- * Every interrupt can have up to 32 causes and the interrupt model supports
- * masking/unmasking each cause independently
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpmcp_set_irq_mask(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u32 mask)
-{
- struct mc_command cmd = { 0 };
- struct dpmcp_cmd_set_irq_mask *cmd_params;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPMCP_CMDID_SET_IRQ_MASK,
- cmd_flags, token);
- cmd_params = (struct dpmcp_cmd_set_irq_mask *)cmd.params;
- cmd_params->mask = cpu_to_le32(mask);
- cmd_params->irq_index = irq_index;
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dpmcp_get_irq_mask() - Get interrupt mask.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPMCP object
- * @irq_index: The interrupt index to configure
- * @mask: Returned event mask to trigger interrupt
- *
- * Every interrupt can have up to 32 causes and the interrupt model supports
- * masking/unmasking each cause independently
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpmcp_get_irq_mask(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u32 *mask)
-{
- struct mc_command cmd = { 0 };
- struct dpmcp_cmd_get_irq_mask *cmd_params;
- struct dpmcp_rsp_get_irq_mask *rsp_params;
-
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_IRQ_MASK,
- cmd_flags, token);
- cmd_params = (struct dpmcp_cmd_get_irq_mask *)cmd.params;
- cmd_params->irq_index = irq_index;
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpmcp_rsp_get_irq_mask *)cmd.params;
- *mask = le32_to_cpu(rsp_params->mask);
-
- return 0;
-}
-
-/**
- * dpmcp_get_irq_status() - Get the current status of any pending interrupts.
- *
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPMCP object
- * @irq_index: The interrupt index to configure
- * @status: Returned interrupts status - one bit per cause:
- * 0 = no interrupt pending
- * 1 = interrupt pending
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpmcp_get_irq_status(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u32 *status)
-{
- struct mc_command cmd = { 0 };
- struct dpmcp_cmd_get_irq_status *cmd_params;
- struct dpmcp_rsp_get_irq_status *rsp_params;
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_IRQ_STATUS,
- cmd_flags, token);
- cmd_params = (struct dpmcp_cmd_get_irq_status *)cmd.params;
- cmd_params->status = cpu_to_le32(*status);
- cmd_params->irq_index = irq_index;
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpmcp_rsp_get_irq_status *)cmd.params;
- *status = le32_to_cpu(rsp_params->status);
-
- return 0;
-}
-
-/**
- * dpmcp_get_attributes - Retrieve DPMCP attributes.
- *
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPMCP object
- * @attr: Returned object's attributes
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpmcp_get_attributes(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- struct dpmcp_attr *attr)
-{
- struct mc_command cmd = { 0 };
- struct dpmcp_rsp_get_attributes *rsp_params;
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_ATTR,
- cmd_flags, token);
+ cmd.header = mc_encode_cmd_header(DPMCP_CMDID_GET_API_VERSION,
+ cmd_flags, 0);
- /* send command to mc*/
+ /* send command to mc */
err = mc_send_command(mc_io, &cmd);
if (err)
return err;
/* retrieve response parameters */
- rsp_params = (struct dpmcp_rsp_get_attributes *)cmd.params;
- attr->id = le32_to_cpu(rsp_params->id);
- attr->version.major = le16_to_cpu(rsp_params->version_major);
- attr->version.minor = le16_to_cpu(rsp_params->version_minor);
+ mc_cmd_read_api_version(&cmd, major_ver, minor_ver);
return 0;
}
--- a/drivers/staging/fsl-mc/bus/dpmcp.h
+++ b/drivers/staging/fsl-mc/bus/dpmcp.h
@@ -1,4 +1,5 @@
-/* Copyright 2013-2015 Freescale Semiconductor Inc.
+/*
+ * Copyright 2013-2016 Freescale Semiconductor Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@@ -11,7 +12,6 @@
* names of any contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
- *
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") as published by the Free Software
* Foundation, either version 2 of that License or (at your option) any
@@ -32,128 +32,29 @@
#ifndef __FSL_DPMCP_H
#define __FSL_DPMCP_H
-/* Data Path Management Command Portal API
+/*
+ * Data Path Management Command Portal API
* Contains initialization APIs and runtime control APIs for DPMCP
*/
struct fsl_mc_io;
int dpmcp_open(struct fsl_mc_io *mc_io,
- uint32_t cmd_flags,
+ u32 cmd_flags,
int dpmcp_id,
- uint16_t *token);
-
-/* Get portal ID from pool */
-#define DPMCP_GET_PORTAL_ID_FROM_POOL (-1)
+ u16 *token);
int dpmcp_close(struct fsl_mc_io *mc_io,
- uint32_t cmd_flags,
- uint16_t token);
+ u32 cmd_flags,
+ u16 token);
-/**
- * struct dpmcp_cfg - Structure representing DPMCP configuration
- * @portal_id: Portal ID; 'DPMCP_GET_PORTAL_ID_FROM_POOL' to get the portal ID
- * from pool
- */
-struct dpmcp_cfg {
- int portal_id;
-};
-
-int dpmcp_create(struct fsl_mc_io *mc_io,
- uint32_t cmd_flags,
- const struct dpmcp_cfg *cfg,
- uint16_t *token);
-
-int dpmcp_destroy(struct fsl_mc_io *mc_io,
- uint32_t cmd_flags,
- uint16_t token);
+int dpmcp_get_api_version(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 *major_ver,
+ u16 *minor_ver);
int dpmcp_reset(struct fsl_mc_io *mc_io,
- uint32_t cmd_flags,
- uint16_t token);
-
-/* IRQ */
-/* IRQ Index */
-#define DPMCP_IRQ_INDEX 0
-/* irq event - Indicates that the link state changed */
-#define DPMCP_IRQ_EVENT_CMD_DONE 0x00000001
-
-/**
- * struct dpmcp_irq_cfg - IRQ configuration
- * @paddr: Address that must be written to signal a message-based interrupt
- * @val: Value to write into irq_addr address
- * @irq_num: A user defined number associated with this IRQ
- */
-struct dpmcp_irq_cfg {
- uint64_t paddr;
- uint32_t val;
- int irq_num;
-};
-
-int dpmcp_set_irq(struct fsl_mc_io *mc_io,
- uint32_t cmd_flags,
- uint16_t token,
- uint8_t irq_index,
- struct dpmcp_irq_cfg *irq_cfg);
-
-int dpmcp_get_irq(struct fsl_mc_io *mc_io,
- uint32_t cmd_flags,
- uint16_t token,
- uint8_t irq_index,
- int *type,
- struct dpmcp_irq_cfg *irq_cfg);
-
-int dpmcp_set_irq_enable(struct fsl_mc_io *mc_io,
- uint32_t cmd_flags,
- uint16_t token,
- uint8_t irq_index,
- uint8_t en);
-
-int dpmcp_get_irq_enable(struct fsl_mc_io *mc_io,
- uint32_t cmd_flags,
- uint16_t token,
- uint8_t irq_index,
- uint8_t *en);
-
-int dpmcp_set_irq_mask(struct fsl_mc_io *mc_io,
- uint32_t cmd_flags,
- uint16_t token,
- uint8_t irq_index,
- uint32_t mask);
-
-int dpmcp_get_irq_mask(struct fsl_mc_io *mc_io,
- uint32_t cmd_flags,
- uint16_t token,
- uint8_t irq_index,
- uint32_t *mask);
-
-int dpmcp_get_irq_status(struct fsl_mc_io *mc_io,
- uint32_t cmd_flags,
- uint16_t token,
- uint8_t irq_index,
- uint32_t *status);
-
-/**
- * struct dpmcp_attr - Structure representing DPMCP attributes
- * @id: DPMCP object ID
- * @version: DPMCP version
- */
-struct dpmcp_attr {
- int id;
- /**
- * struct version - Structure representing DPMCP version
- * @major: DPMCP major version
- * @minor: DPMCP minor version
- */
- struct {
- uint16_t major;
- uint16_t minor;
- } version;
-};
-
-int dpmcp_get_attributes(struct fsl_mc_io *mc_io,
- uint32_t cmd_flags,
- uint16_t token,
- struct dpmcp_attr *attr);
+ u32 cmd_flags,
+ u16 token);
#endif /* __FSL_DPMCP_H */
--- a/drivers/staging/fsl-mc/bus/dpmng-cmd.h
+++ b/drivers/staging/fsl-mc/bus/dpmng-cmd.h
@@ -12,7 +12,6 @@
* names of any contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
- *
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") as published by the Free Software
* Foundation, either version 2 of that License or (at your option) any
@@ -41,13 +40,14 @@
#ifndef __FSL_DPMNG_CMD_H
#define __FSL_DPMNG_CMD_H
-/* Command IDs */
-#define DPMNG_CMDID_GET_CONT_ID 0x830
-#define DPMNG_CMDID_GET_VERSION 0x831
+/* Command versioning */
+#define DPMNG_CMD_BASE_VERSION 1
+#define DPMNG_CMD_ID_OFFSET 4
-struct dpmng_rsp_get_container_id {
- __le32 container_id;
-};
+#define DPMNG_CMD(id) ((id << DPMNG_CMD_ID_OFFSET) | DPMNG_CMD_BASE_VERSION)
+
+/* Command IDs */
+#define DPMNG_CMDID_GET_VERSION DPMNG_CMD(0x831)
struct dpmng_rsp_get_version {
__le32 revision;
--- a/drivers/staging/fsl-mc/bus/dpmng.c
+++ b/drivers/staging/fsl-mc/bus/dpmng.c
@@ -1,4 +1,5 @@
-/* Copyright 2013-2016 Freescale Semiconductor Inc.
+/*
+ * Copyright 2013-2016 Freescale Semiconductor Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@@ -11,7 +12,6 @@
* names of any contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
- *
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") as published by the Free Software
* Foundation, either version 2 of that License or (at your option) any
@@ -72,36 +72,3 @@ int mc_get_version(struct fsl_mc_io *mc_
}
EXPORT_SYMBOL(mc_get_version);
-/**
- * dpmng_get_container_id() - Get container ID associated with a given portal.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @container_id: Requested container ID
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dpmng_get_container_id(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- int *container_id)
-{
- struct mc_command cmd = { 0 };
- struct dpmng_rsp_get_container_id *rsp_params;
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPMNG_CMDID_GET_CONT_ID,
- cmd_flags,
- 0);
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dpmng_rsp_get_container_id *)cmd.params;
- *container_id = le32_to_cpu(rsp_params->container_id);
-
- return 0;
-}
-
--- a/drivers/staging/fsl-mc/bus/dprc-cmd.h
+++ b/drivers/staging/fsl-mc/bus/dprc-cmd.h
@@ -12,7 +12,6 @@
* names of any contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
- *
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") as published by the Free Software
* Foundation, either version 2 of that License or (at your option) any
@@ -42,48 +41,39 @@
#define _FSL_DPRC_CMD_H
/* Minimal supported DPRC Version */
-#define DPRC_MIN_VER_MAJOR 5
+#define DPRC_MIN_VER_MAJOR 6
#define DPRC_MIN_VER_MINOR 0
-/* Command IDs */
-#define DPRC_CMDID_CLOSE 0x800
-#define DPRC_CMDID_OPEN 0x805
-#define DPRC_CMDID_CREATE 0x905
-
-#define DPRC_CMDID_GET_ATTR 0x004
-#define DPRC_CMDID_RESET_CONT 0x005
-
-#define DPRC_CMDID_SET_IRQ 0x010
-#define DPRC_CMDID_GET_IRQ 0x011
-#define DPRC_CMDID_SET_IRQ_ENABLE 0x012
-#define DPRC_CMDID_GET_IRQ_ENABLE 0x013
-#define DPRC_CMDID_SET_IRQ_MASK 0x014
-#define DPRC_CMDID_GET_IRQ_MASK 0x015
-#define DPRC_CMDID_GET_IRQ_STATUS 0x016
-#define DPRC_CMDID_CLEAR_IRQ_STATUS 0x017
-
-#define DPRC_CMDID_CREATE_CONT 0x151
-#define DPRC_CMDID_DESTROY_CONT 0x152
-#define DPRC_CMDID_SET_RES_QUOTA 0x155
-#define DPRC_CMDID_GET_RES_QUOTA 0x156
-#define DPRC_CMDID_ASSIGN 0x157
-#define DPRC_CMDID_UNASSIGN 0x158
-#define DPRC_CMDID_GET_OBJ_COUNT 0x159
-#define DPRC_CMDID_GET_OBJ 0x15A
-#define DPRC_CMDID_GET_RES_COUNT 0x15B
-#define DPRC_CMDID_GET_RES_IDS 0x15C
-#define DPRC_CMDID_GET_OBJ_REG 0x15E
-#define DPRC_CMDID_SET_OBJ_IRQ 0x15F
-#define DPRC_CMDID_GET_OBJ_IRQ 0x160
-#define DPRC_CMDID_SET_OBJ_LABEL 0x161
-#define DPRC_CMDID_GET_OBJ_DESC 0x162
-
-#define DPRC_CMDID_CONNECT 0x167
-#define DPRC_CMDID_DISCONNECT 0x168
-#define DPRC_CMDID_GET_POOL 0x169
-#define DPRC_CMDID_GET_POOL_COUNT 0x16A
+/* Command versioning */
+#define DPRC_CMD_BASE_VERSION 1
+#define DPRC_CMD_ID_OFFSET 4
-#define DPRC_CMDID_GET_CONNECTION 0x16C
+#define DPRC_CMD(id) ((id << DPRC_CMD_ID_OFFSET) | DPRC_CMD_BASE_VERSION)
+
+/* Command IDs */
+#define DPRC_CMDID_CLOSE DPRC_CMD(0x800)
+#define DPRC_CMDID_OPEN DPRC_CMD(0x805)
+#define DPRC_CMDID_GET_API_VERSION DPRC_CMD(0xa05)
+
+#define DPRC_CMDID_GET_ATTR DPRC_CMD(0x004)
+#define DPRC_CMDID_RESET_CONT DPRC_CMD(0x005)
+
+#define DPRC_CMDID_SET_IRQ DPRC_CMD(0x010)
+#define DPRC_CMDID_GET_IRQ DPRC_CMD(0x011)
+#define DPRC_CMDID_SET_IRQ_ENABLE DPRC_CMD(0x012)
+#define DPRC_CMDID_GET_IRQ_ENABLE DPRC_CMD(0x013)
+#define DPRC_CMDID_SET_IRQ_MASK DPRC_CMD(0x014)
+#define DPRC_CMDID_GET_IRQ_MASK DPRC_CMD(0x015)
+#define DPRC_CMDID_GET_IRQ_STATUS DPRC_CMD(0x016)
+#define DPRC_CMDID_CLEAR_IRQ_STATUS DPRC_CMD(0x017)
+
+#define DPRC_CMDID_GET_CONT_ID DPRC_CMD(0x830)
+#define DPRC_CMDID_GET_OBJ_COUNT DPRC_CMD(0x159)
+#define DPRC_CMDID_GET_OBJ DPRC_CMD(0x15A)
+#define DPRC_CMDID_GET_RES_COUNT DPRC_CMD(0x15B)
+#define DPRC_CMDID_GET_OBJ_REG DPRC_CMD(0x15E)
+#define DPRC_CMDID_SET_OBJ_IRQ DPRC_CMD(0x15F)
+#define DPRC_CMDID_GET_OBJ_IRQ DPRC_CMD(0x160)
struct dprc_cmd_open {
__le32 container_id;
@@ -199,9 +189,6 @@ struct dprc_rsp_get_attributes {
/* response word 1 */
__le32 options;
__le32 portal_id;
- /* response word 2 */
- __le16 version_major;
- __le16 version_minor;
};
struct dprc_cmd_set_res_quota {
@@ -367,11 +354,16 @@ struct dprc_cmd_get_obj_region {
struct dprc_rsp_get_obj_region {
/* response word 0 */
- __le64 pad;
+ __le64 pad0;
/* response word 1 */
- __le64 base_addr;
+ __le32 base_addr;
+ __le32 pad1;
/* response word 2 */
__le32 size;
+ u8 type;
+ u8 pad2[3];
+ /* response word 3 */
+ __le32 flags;
};
struct dprc_cmd_set_obj_label {
--- a/drivers/staging/fsl-mc/bus/dprc-driver.c
+++ b/drivers/staging/fsl-mc/bus/dprc-driver.c
@@ -1,7 +1,7 @@
/*
* Freescale data path resource container (DPRC) driver
*
- * Copyright (C) 2014 Freescale Semiconductor, Inc.
+ * Copyright (C) 2014-2016 Freescale Semiconductor, Inc.
* Author: German Rivera <German.Rivera@freescale.com>
*
* This file is licensed under the terms of the GNU General Public
@@ -160,6 +160,8 @@ static void check_plugged_state_change(s
* dprc_add_new_devices - Adds devices to the logical bus for a DPRC
*
* @mc_bus_dev: pointer to the fsl-mc device that represents a DPRC object
+ * @driver_override: driver override to apply to new objects found in the
+ * DPRC, or NULL, if none.
* @obj_desc_array: array of device descriptors for child devices currently
* present in the physical DPRC.
* @num_child_objects_in_mc: number of entries in obj_desc_array
@@ -169,6 +171,7 @@ static void check_plugged_state_change(s
* in the physical DPRC.
*/
static void dprc_add_new_devices(struct fsl_mc_device *mc_bus_dev,
+ const char *driver_override,
struct dprc_obj_desc *obj_desc_array,
int num_child_objects_in_mc)
{
@@ -188,11 +191,12 @@ static void dprc_add_new_devices(struct
child_dev = fsl_mc_device_lookup(obj_desc, mc_bus_dev);
if (child_dev) {
check_plugged_state_change(child_dev, obj_desc);
+ put_device(&child_dev->dev);
continue;
}
error = fsl_mc_device_add(obj_desc, NULL, &mc_bus_dev->dev,
- &child_dev);
+ driver_override, &child_dev);
if (error < 0)
continue;
}
@@ -202,6 +206,8 @@ static void dprc_add_new_devices(struct
* dprc_scan_objects - Discover objects in a DPRC
*
* @mc_bus_dev: pointer to the fsl-mc device that represents a DPRC object
+ * @driver_override: driver override to apply to new objects found in the
+ * DPRC, or NULL, if none.
* @total_irq_count: total number of IRQs needed by objects in the DPRC.
*
* Detects objects added and removed from a DPRC and synchronizes the
@@ -217,6 +223,7 @@ static void dprc_add_new_devices(struct
* of the device drivers for the non-allocatable devices.
*/
int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev,
+ const char *driver_override,
unsigned int *total_irq_count)
{
int num_child_objects;
@@ -297,7 +304,7 @@ int dprc_scan_objects(struct fsl_mc_devi
dprc_remove_devices(mc_bus_dev, child_obj_desc_array,
num_child_objects);
- dprc_add_new_devices(mc_bus_dev, child_obj_desc_array,
+ dprc_add_new_devices(mc_bus_dev, driver_override, child_obj_desc_array,
num_child_objects);
if (child_obj_desc_array)
@@ -328,7 +335,7 @@ int dprc_scan_container(struct fsl_mc_de
* Discover objects in the DPRC:
*/
mutex_lock(&mc_bus->scan_mutex);
- error = dprc_scan_objects(mc_bus_dev, &irq_count);
+ error = dprc_scan_objects(mc_bus_dev, NULL, &irq_count);
mutex_unlock(&mc_bus->scan_mutex);
if (error < 0)
goto error;
@@ -415,7 +422,7 @@ static irqreturn_t dprc_irq0_handler_thr
DPRC_IRQ_EVENT_OBJ_CREATED)) {
unsigned int irq_count;
- error = dprc_scan_objects(mc_dev, &irq_count);
+ error = dprc_scan_objects(mc_dev, NULL, &irq_count);
if (error < 0) {
/*
* If the error is -ENXIO, we ignore it, as it indicates
@@ -505,7 +512,7 @@ static int register_dprc_irq_handler(str
dprc_irq0_handler,
dprc_irq0_handler_thread,
IRQF_NO_SUSPEND | IRQF_ONESHOT,
- "FSL MC DPRC irq0",
+ dev_name(&mc_dev->dev),
&mc_dev->dev);
if (error < 0) {
dev_err(&mc_dev->dev,
@@ -597,6 +604,7 @@ static int dprc_probe(struct fsl_mc_devi
struct fsl_mc_bus *mc_bus = to_fsl_mc_bus(mc_dev);
bool mc_io_created = false;
bool msi_domain_set = false;
+ u16 major_ver, minor_ver;
if (WARN_ON(strcmp(mc_dev->obj_desc.type, "dprc") != 0))
return -EINVAL;
@@ -669,13 +677,21 @@ static int dprc_probe(struct fsl_mc_devi
goto error_cleanup_open;
}
- if (mc_bus->dprc_attr.version.major < DPRC_MIN_VER_MAJOR ||
- (mc_bus->dprc_attr.version.major == DPRC_MIN_VER_MAJOR &&
- mc_bus->dprc_attr.version.minor < DPRC_MIN_VER_MINOR)) {
+ error = dprc_get_api_version(mc_dev->mc_io, 0,
+ &major_ver,
+ &minor_ver);
+ if (error < 0) {
+ dev_err(&mc_dev->dev, "dprc_get_api_version() failed: %d\n",
+ error);
+ goto error_cleanup_open;
+ }
+
+ if (major_ver < DPRC_MIN_VER_MAJOR ||
+ (major_ver == DPRC_MIN_VER_MAJOR &&
+ minor_ver < DPRC_MIN_VER_MINOR)) {
dev_err(&mc_dev->dev,
"ERROR: DPRC version %d.%d not supported\n",
- mc_bus->dprc_attr.version.major,
- mc_bus->dprc_attr.version.minor);
+ major_ver, minor_ver);
error = -ENOTSUPP;
goto error_cleanup_open;
}
--- a/drivers/staging/fsl-mc/bus/dprc.c
+++ b/drivers/staging/fsl-mc/bus/dprc.c
@@ -1,4 +1,5 @@
-/* Copyright 2013-2016 Freescale Semiconductor Inc.
+/*
+ * Copyright 2013-2016 Freescale Semiconductor Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@@ -11,7 +12,6 @@
* names of any contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
- *
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") as published by the Free Software
* Foundation, either version 2 of that License or (at your option) any
@@ -100,93 +100,6 @@ int dprc_close(struct fsl_mc_io *mc_io,
EXPORT_SYMBOL(dprc_close);
/**
- * dprc_create_container() - Create child container
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPRC object
- * @cfg: Child container configuration
- * @child_container_id: Returned child container ID
- * @child_portal_offset: Returned child portal offset from MC portal base
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dprc_create_container(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- struct dprc_cfg *cfg,
- int *child_container_id,
- u64 *child_portal_offset)
-{
- struct mc_command cmd = { 0 };
- struct dprc_cmd_create_container *cmd_params;
- struct dprc_rsp_create_container *rsp_params;
- int err;
-
- /* prepare command */
- cmd_params = (struct dprc_cmd_create_container *)cmd.params;
- cmd_params->options = cpu_to_le32(cfg->options);
- cmd_params->icid = cpu_to_le16(cfg->icid);
- cmd_params->portal_id = cpu_to_le32(cfg->portal_id);
- strncpy(cmd_params->label, cfg->label, 16);
- cmd_params->label[15] = '\0';
-
- cmd.header = mc_encode_cmd_header(DPRC_CMDID_CREATE_CONT,
- cmd_flags, token);
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dprc_rsp_create_container *)cmd.params;
- *child_container_id = le32_to_cpu(rsp_params->child_container_id);
- *child_portal_offset = le64_to_cpu(rsp_params->child_portal_addr);
-
- return 0;
-}
-
-/**
- * dprc_destroy_container() - Destroy child container.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPRC object
- * @child_container_id: ID of the container to destroy
- *
- * This function terminates the child container, so following this call the
- * child container ID becomes invalid.
- *
- * Notes:
- * - All resources and objects of the destroyed container are returned to the
- * parent container or destroyed if were created be the destroyed container.
- * - This function destroy all the child containers of the specified
- * container prior to destroying the container itself.
- *
- * warning: Only the parent container is allowed to destroy a child policy
- * Container 0 can't be destroyed
- *
- * Return: '0' on Success; Error code otherwise.
- *
- */
-int dprc_destroy_container(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int child_container_id)
-{
- struct mc_command cmd = { 0 };
- struct dprc_cmd_destroy_container *cmd_params;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPRC_CMDID_DESTROY_CONT,
- cmd_flags, token);
- cmd_params = (struct dprc_cmd_destroy_container *)cmd.params;
- cmd_params->child_container_id = cpu_to_le32(child_container_id);
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
* dprc_reset_container - Reset child container.
* @mc_io: Pointer to MC portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
@@ -565,279 +478,6 @@ int dprc_get_attributes(struct fsl_mc_io
attr->icid = le16_to_cpu(rsp_params->icid);
attr->options = le32_to_cpu(rsp_params->options);
attr->portal_id = le32_to_cpu(rsp_params->portal_id);
- attr->version.major = le16_to_cpu(rsp_params->version_major);
- attr->version.minor = le16_to_cpu(rsp_params->version_minor);
-
- return 0;
-}
-
-/**
- * dprc_set_res_quota() - Set allocation policy for a specific resource/object
- * type in a child container
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPRC object
- * @child_container_id: ID of the child container
- * @type: Resource/object type
- * @quota: Sets the maximum number of resources of the selected type
- * that the child container is allowed to allocate from its parent;
- * when quota is set to -1, the policy is the same as container's
- * general policy.
- *
- * Allocation policy determines whether or not a container may allocate
- * resources from its parent. Each container has a 'global' allocation policy
- * that is set when the container is created.
- *
- * This function sets allocation policy for a specific resource type.
- * The default policy for all resource types matches the container's 'global'
- * allocation policy.
- *
- * Return: '0' on Success; Error code otherwise.
- *
- * @warning Only the parent container is allowed to change a child policy.
- */
-int dprc_set_res_quota(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int child_container_id,
- char *type,
- u16 quota)
-{
- struct mc_command cmd = { 0 };
- struct dprc_cmd_set_res_quota *cmd_params;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPRC_CMDID_SET_RES_QUOTA,
- cmd_flags, token);
- cmd_params = (struct dprc_cmd_set_res_quota *)cmd.params;
- cmd_params->child_container_id = cpu_to_le32(child_container_id);
- cmd_params->quota = cpu_to_le16(quota);
- strncpy(cmd_params->type, type, 16);
- cmd_params->type[15] = '\0';
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dprc_get_res_quota() - Gets the allocation policy of a specific
- * resource/object type in a child container
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPRC object
- * @child_container_id; ID of the child container
- * @type: resource/object type
- * @quota: Returnes the maximum number of resources of the selected type
- * that the child container is allowed to allocate from the parent;
- * when quota is set to -1, the policy is the same as container's
- * general policy.
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dprc_get_res_quota(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int child_container_id,
- char *type,
- u16 *quota)
-{
- struct mc_command cmd = { 0 };
- struct dprc_cmd_get_res_quota *cmd_params;
- struct dprc_rsp_get_res_quota *rsp_params;
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_RES_QUOTA,
- cmd_flags, token);
- cmd_params = (struct dprc_cmd_get_res_quota *)cmd.params;
- cmd_params->child_container_id = cpu_to_le32(child_container_id);
- strncpy(cmd_params->type, type, 16);
- cmd_params->type[15] = '\0';
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dprc_rsp_get_res_quota *)cmd.params;
- *quota = le16_to_cpu(rsp_params->quota);
-
- return 0;
-}
-
-/**
- * dprc_assign() - Assigns objects or resource to a child container.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPRC object
- * @container_id: ID of the child container
- * @res_req: Describes the type and amount of resources to
- * assign to the given container
- *
- * Assignment is usually done by a parent (this DPRC) to one of its child
- * containers.
- *
- * According to the DPRC allocation policy, the assigned resources may be taken
- * (allocated) from the container's ancestors, if not enough resources are
- * available in the container itself.
- *
- * The type of assignment depends on the dprc_res_req options, as follows:
- * - DPRC_RES_REQ_OPT_EXPLICIT: indicates that assigned resources should have
- * the explicit base ID specified at the id_base_align field of res_req.
- * - DPRC_RES_REQ_OPT_ALIGNED: indicates that the assigned resources should be
- * aligned to the value given at id_base_align field of res_req.
- * - DPRC_RES_REQ_OPT_PLUGGED: Relevant only for object assignment,
- * and indicates that the object must be set to the plugged state.
- *
- * A container may use this function with its own ID in order to change a
- * object state to plugged or unplugged.
- *
- * If IRQ information has been set in the child DPRC, it will signal an
- * interrupt following every change in its object assignment.
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dprc_assign(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int container_id,
- struct dprc_res_req *res_req)
-{
- struct mc_command cmd = { 0 };
- struct dprc_cmd_assign *cmd_params;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPRC_CMDID_ASSIGN,
- cmd_flags, token);
- cmd_params = (struct dprc_cmd_assign *)cmd.params;
- cmd_params->container_id = cpu_to_le32(container_id);
- cmd_params->options = cpu_to_le32(res_req->options);
- cmd_params->num = cpu_to_le32(res_req->num);
- cmd_params->id_base_align = cpu_to_le32(res_req->id_base_align);
- strncpy(cmd_params->type, res_req->type, 16);
- cmd_params->type[15] = '\0';
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dprc_unassign() - Un-assigns objects or resources from a child container
- * and moves them into this (parent) DPRC.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPRC object
- * @child_container_id: ID of the child container
- * @res_req: Describes the type and amount of resources to un-assign from
- * the child container
- *
- * Un-assignment of objects can succeed only if the object is not in the
- * plugged or opened state.
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dprc_unassign(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int child_container_id,
- struct dprc_res_req *res_req)
-{
- struct mc_command cmd = { 0 };
- struct dprc_cmd_unassign *cmd_params;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPRC_CMDID_UNASSIGN,
- cmd_flags,
- token);
- cmd_params = (struct dprc_cmd_unassign *)cmd.params;
- cmd_params->child_container_id = cpu_to_le32(child_container_id);
- cmd_params->options = cpu_to_le32(res_req->options);
- cmd_params->num = cpu_to_le32(res_req->num);
- cmd_params->id_base_align = cpu_to_le32(res_req->id_base_align);
- strncpy(cmd_params->type, res_req->type, 16);
- cmd_params->type[15] = '\0';
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dprc_get_pool_count() - Get the number of dprc's pools
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @mc_io: Pointer to MC portal's I/O object
- * @token: Token of DPRC object
- * @pool_count: Returned number of resource pools in the dprc
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dprc_get_pool_count(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int *pool_count)
-{
- struct mc_command cmd = { 0 };
- struct dprc_rsp_get_pool_count *rsp_params;
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_POOL_COUNT,
- cmd_flags, token);
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dprc_rsp_get_pool_count *)cmd.params;
- *pool_count = le32_to_cpu(rsp_params->pool_count);
-
- return 0;
-}
-
-/**
- * dprc_get_pool() - Get the type (string) of a certain dprc's pool
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPRC object
- * @pool_index; Index of the pool to be queried (< pool_count)
- * @type: The type of the pool
- *
- * The pool types retrieved one by one by incrementing
- * pool_index up to (not including) the value of pool_count returned
- * from dprc_get_pool_count(). dprc_get_pool_count() must
- * be called prior to dprc_get_pool().
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dprc_get_pool(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int pool_index,
- char *type)
-{
- struct mc_command cmd = { 0 };
- struct dprc_cmd_get_pool *cmd_params;
- struct dprc_rsp_get_pool *rsp_params;
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_POOL,
- cmd_flags,
- token);
- cmd_params = (struct dprc_cmd_get_pool *)cmd.params;
- cmd_params->pool_index = cpu_to_le32(pool_index);
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dprc_rsp_get_pool *)cmd.params;
- strncpy(type, rsp_params->type, 16);
- type[15] = '\0';
return 0;
}
@@ -934,64 +574,6 @@ int dprc_get_obj(struct fsl_mc_io *mc_io
EXPORT_SYMBOL(dprc_get_obj);
/**
- * dprc_get_obj_desc() - Get object descriptor.
- *
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPRC object
- * @obj_type: The type of the object to get its descriptor.
- * @obj_id: The id of the object to get its descriptor
- * @obj_desc: The returned descriptor to fill and return to the user
- *
- * Return: '0' on Success; Error code otherwise.
- *
- */
-int dprc_get_obj_desc(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- char *obj_type,
- int obj_id,
- struct dprc_obj_desc *obj_desc)
-{
- struct mc_command cmd = { 0 };
- struct dprc_cmd_get_obj_desc *cmd_params;
- struct dprc_rsp_get_obj_desc *rsp_params;
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_OBJ_DESC,
- cmd_flags,
- token);
- cmd_params = (struct dprc_cmd_get_obj_desc *)cmd.params;
- cmd_params->obj_id = cpu_to_le32(obj_id);
- strncpy(cmd_params->type, obj_type, 16);
- cmd_params->type[15] = '\0';
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dprc_rsp_get_obj_desc *)cmd.params;
- obj_desc->id = le32_to_cpu(rsp_params->id);
- obj_desc->vendor = le16_to_cpu(rsp_params->vendor);
- obj_desc->irq_count = rsp_params->irq_count;
- obj_desc->region_count = rsp_params->region_count;
- obj_desc->state = le32_to_cpu(rsp_params->state);
- obj_desc->ver_major = le16_to_cpu(rsp_params->version_major);
- obj_desc->ver_minor = le16_to_cpu(rsp_params->version_minor);
- obj_desc->flags = le16_to_cpu(rsp_params->flags);
- strncpy(obj_desc->type, rsp_params->type, 16);
- obj_desc->type[15] = '\0';
- strncpy(obj_desc->label, rsp_params->label, 16);
- obj_desc->label[15] = '\0';
-
- return 0;
-}
-EXPORT_SYMBOL(dprc_get_obj_desc);
-
-/**
* dprc_set_obj_irq() - Set IRQ information for object to trigger an interrupt.
* @mc_io: Pointer to MC portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
@@ -1130,52 +712,6 @@ int dprc_get_res_count(struct fsl_mc_io
EXPORT_SYMBOL(dprc_get_res_count);
/**
- * dprc_get_res_ids() - Obtains IDs of free resources in the container
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPRC object
- * @type: pool type
- * @range_desc: range descriptor
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dprc_get_res_ids(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- char *type,
- struct dprc_res_ids_range_desc *range_desc)
-{
- struct mc_command cmd = { 0 };
- struct dprc_cmd_get_res_ids *cmd_params;
- struct dprc_rsp_get_res_ids *rsp_params;
- int err;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_RES_IDS,
- cmd_flags, token);
- cmd_params = (struct dprc_cmd_get_res_ids *)cmd.params;
- cmd_params->iter_status = range_desc->iter_status;
- cmd_params->base_id = cpu_to_le32(range_desc->base_id);
- cmd_params->last_id = cpu_to_le32(range_desc->last_id);
- strncpy(cmd_params->type, type, 16);
- cmd_params->type[15] = '\0';
-
- /* send command to mc*/
- err = mc_send_command(mc_io, &cmd);
- if (err)
- return err;
-
- /* retrieve response parameters */
- rsp_params = (struct dprc_rsp_get_res_ids *)cmd.params;
- range_desc->iter_status = rsp_params->iter_status;
- range_desc->base_id = le32_to_cpu(rsp_params->base_id);
- range_desc->last_id = le32_to_cpu(rsp_params->last_id);
-
- return 0;
-}
-EXPORT_SYMBOL(dprc_get_res_ids);
-
-/**
* dprc_get_obj_region() - Get region information for a specified object.
* @mc_io: Pointer to MC portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
@@ -1216,160 +752,66 @@ int dprc_get_obj_region(struct fsl_mc_io
/* retrieve response parameters */
rsp_params = (struct dprc_rsp_get_obj_region *)cmd.params;
- region_desc->base_offset = le64_to_cpu(rsp_params->base_addr);
+ region_desc->base_offset = le32_to_cpu(rsp_params->base_addr);
region_desc->size = le32_to_cpu(rsp_params->size);
+ region_desc->type = rsp_params->type;
+ region_desc->flags = le32_to_cpu(rsp_params->flags);
return 0;
}
EXPORT_SYMBOL(dprc_get_obj_region);
/**
- * dprc_set_obj_label() - Set object label.
- * @mc_io: Pointer to MC portal's I/O object
+ * dprc_get_api_version - Get Data Path Resource Container API version
+ * @mc_io: Pointer to Mc portal's I/O object
* @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPRC object
- * @obj_type: Object's type
- * @obj_id: Object's ID
- * @label: The required label. The maximum length is 16 chars.
+ * @major_ver: Major version of Data Path Resource Container API
+ * @minor_ver: Minor version of Data Path Resource Container API
*
* Return: '0' on Success; Error code otherwise.
*/
-int dprc_set_obj_label(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- char *obj_type,
- int obj_id,
- char *label)
+int dprc_get_api_version(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 *major_ver,
+ u16 *minor_ver)
{
struct mc_command cmd = { 0 };
- struct dprc_cmd_set_obj_label *cmd_params;
+ int err;
/* prepare command */
- cmd.header = mc_encode_cmd_header(DPRC_CMDID_SET_OBJ_LABEL,
- cmd_flags,
- token);
- cmd_params = (struct dprc_cmd_set_obj_label *)cmd.params;
- cmd_params->obj_id = cpu_to_le32(obj_id);
- strncpy(cmd_params->label, label, 16);
- cmd_params->label[15] = '\0';
- strncpy(cmd_params->obj_type, obj_type, 16);
- cmd_params->obj_type[15] = '\0';
+ cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_API_VERSION,
+ cmd_flags, 0);
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-EXPORT_SYMBOL(dprc_set_obj_label);
-
-/**
- * dprc_connect() - Connect two endpoints to create a network link between them
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPRC object
- * @endpoint1: Endpoint 1 configuration parameters
- * @endpoint2: Endpoint 2 configuration parameters
- * @cfg: Connection configuration. The connection configuration is ignored for
- * connections made to DPMAC objects, where rate is retrieved from the
- * MAC configuration.
- *
- * Return: '0' on Success; Error code otherwise.
- */
-int dprc_connect(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- const struct dprc_endpoint *endpoint1,
- const struct dprc_endpoint *endpoint2,
- const struct dprc_connection_cfg *cfg)
-{
- struct mc_command cmd = { 0 };
- struct dprc_cmd_connect *cmd_params;
+ /* send command to mc */
+ err = mc_send_command(mc_io, &cmd);
+ if (err)
+ return err;
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPRC_CMDID_CONNECT,
- cmd_flags,
- token);
- cmd_params = (struct dprc_cmd_connect *)cmd.params;
- cmd_params->ep1_id = cpu_to_le32(endpoint1->id);
- cmd_params->ep1_interface_id = cpu_to_le32(endpoint1->if_id);
- cmd_params->ep2_id = cpu_to_le32(endpoint2->id);
- cmd_params->ep2_interface_id = cpu_to_le32(endpoint2->if_id);
- strncpy(cmd_params->ep1_type, endpoint1->type, 16);
- cmd_params->ep1_type[15] = '\0';
- cmd_params->max_rate = cpu_to_le32(cfg->max_rate);
- cmd_params->committed_rate = cpu_to_le32(cfg->committed_rate);
- strncpy(cmd_params->ep2_type, endpoint2->type, 16);
- cmd_params->ep2_type[15] = '\0';
+ /* retrieve response parameters */
+ mc_cmd_read_api_version(&cmd, major_ver, minor_ver);
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
+ return 0;
}
/**
- * dprc_disconnect() - Disconnect one endpoint to remove its network connection
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPRC object
- * @endpoint: Endpoint configuration parameters
+ * dprc_get_container_id - Get container ID associated with a given portal.
+ * @mc_io: Pointer to Mc portal's I/O object
+ * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
+ * @container_id: Requested container id
*
* Return: '0' on Success; Error code otherwise.
*/
-int dprc_disconnect(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- const struct dprc_endpoint *endpoint)
-{
- struct mc_command cmd = { 0 };
- struct dprc_cmd_disconnect *cmd_params;
-
- /* prepare command */
- cmd.header = mc_encode_cmd_header(DPRC_CMDID_DISCONNECT,
- cmd_flags,
- token);
- cmd_params = (struct dprc_cmd_disconnect *)cmd.params;
- cmd_params->id = cpu_to_le32(endpoint->id);
- cmd_params->interface_id = cpu_to_le32(endpoint->if_id);
- strncpy(cmd_params->type, endpoint->type, 16);
- cmd_params->type[15] = '\0';
-
- /* send command to mc*/
- return mc_send_command(mc_io, &cmd);
-}
-
-/**
- * dprc_get_connection() - Get connected endpoint and link status if connection
- * exists.
- * @mc_io: Pointer to MC portal's I/O object
- * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
- * @token: Token of DPRC object
- * @endpoint1: Endpoint 1 configuration parameters
- * @endpoint2: Returned endpoint 2 configuration parameters
- * @state: Returned link state:
- * 1 - link is up;
- * 0 - link is down;
- * -1 - no connection (endpoint2 information is irrelevant)
- *
- * Return: '0' on Success; -ENAVAIL if connection does not exist.
- */
-int dprc_get_connection(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- const struct dprc_endpoint *endpoint1,
- struct dprc_endpoint *endpoint2,
- int *state)
+int dprc_get_container_id(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ int *container_id)
{
struct mc_command cmd = { 0 };
- struct dprc_cmd_get_connection *cmd_params;
- struct dprc_rsp_get_connection *rsp_params;
int err;
/* prepare command */
- cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_CONNECTION,
+ cmd.header = mc_encode_cmd_header(DPRC_CMDID_GET_CONT_ID,
cmd_flags,
- token);
- cmd_params = (struct dprc_cmd_get_connection *)cmd.params;
- cmd_params->ep1_id = cpu_to_le32(endpoint1->id);
- cmd_params->ep1_interface_id = cpu_to_le32(endpoint1->if_id);
- strncpy(cmd_params->ep1_type, endpoint1->type, 16);
- cmd_params->ep1_type[15] = '\0';
+ 0);
/* send command to mc*/
err = mc_send_command(mc_io, &cmd);
@@ -1377,12 +819,7 @@ int dprc_get_connection(struct fsl_mc_io
return err;
/* retrieve response parameters */
- rsp_params = (struct dprc_rsp_get_connection *)cmd.params;
- endpoint2->id = le32_to_cpu(rsp_params->ep2_id);
- endpoint2->if_id = le32_to_cpu(rsp_params->ep2_interface_id);
- strncpy(endpoint2->type, rsp_params->ep2_type, 16);
- endpoint2->type[15] = '\0';
- *state = le32_to_cpu(rsp_params->state);
+ *container_id = (int)mc_cmd_read_object_id(&cmd);
return 0;
}
--- a/drivers/staging/fsl-mc/bus/fsl-mc-allocator.c
+++ b/drivers/staging/fsl-mc/bus/fsl-mc-allocator.c
@@ -1,7 +1,7 @@
/*
- * Freescale MC object device allocator driver
+ * fsl-mc object allocator driver
*
- * Copyright (C) 2013 Freescale Semiconductor, Inc.
+ * Copyright (C) 2013-2016 Freescale Semiconductor, Inc.
*
* This file is licensed under the terms of the GNU General Public
* License version 2. This program is licensed "as is" without any
@@ -12,9 +12,9 @@
#include <linux/msi.h>
#include "../include/mc-bus.h"
#include "../include/mc-sys.h"
-#include "../include/dpbp-cmd.h"
-#include "../include/dpcon-cmd.h"
+#include "dpbp-cmd.h"
+#include "dpcon-cmd.h"
#include "fsl-mc-private.h"
#define FSL_MC_IS_ALLOCATABLE(_obj_type) \
@@ -23,15 +23,12 @@
strcmp(_obj_type, "dpcon") == 0)
/**
- * fsl_mc_resource_pool_add_device - add allocatable device to a resource
- * pool of a given MC bus
+ * fsl_mc_resource_pool_add_device - add allocatable object to a resource
+ * pool of a given fsl-mc bus
*
- * @mc_bus: pointer to the MC bus
- * @pool_type: MC bus pool type
- * @mc_dev: Pointer to allocatable MC object device
- *
- * It adds an allocatable MC object device to a container's resource pool of
- * the given resource type
+ * @mc_bus: pointer to the fsl-mc bus
+ * @pool_type: pool type
+ * @mc_dev: pointer to allocatable fsl-mc device
*/
static int __must_check fsl_mc_resource_pool_add_device(struct fsl_mc_bus
*mc_bus,
@@ -95,10 +92,10 @@ out:
* fsl_mc_resource_pool_remove_device - remove an allocatable device from a
* resource pool
*
- * @mc_dev: Pointer to allocatable MC object device
+ * @mc_dev: pointer to allocatable fsl-mc device
*
- * It permanently removes an allocatable MC object device from the resource
- * pool, the device is currently in, as long as it is in the pool's free list.
+ * It permanently removes an allocatable fsl-mc device from the resource
+ * pool. It's an error if the device is in use.
*/
static int __must_check fsl_mc_resource_pool_remove_device(struct fsl_mc_device
*mc_dev)
@@ -255,17 +252,18 @@ out_unlock:
EXPORT_SYMBOL_GPL(fsl_mc_resource_free);
/**
- * fsl_mc_object_allocate - Allocates a MC object device of the given
- * pool type from a given MC bus
+ * fsl_mc_object_allocate - Allocates an fsl-mc object of the given
+ * pool type from a given fsl-mc bus instance
*
- * @mc_dev: MC device for which the MC object device is to be allocated
- * @pool_type: MC bus resource pool type
- * @new_mc_dev: Pointer to area where the pointer to the allocated
- * MC object device is to be returned
+ * @mc_dev: fsl-mc device which is used in conjunction with the
+ * allocated object
+ * @pool_type: pool type
+ * @new_mc_dev: pointer to area where the pointer to the allocated device
+ * is to be returned
*
- * This function allocates a MC object device from the device's parent DPRC,
- * from the corresponding MC bus' pool of allocatable MC object devices of
- * the given resource type. mc_dev cannot be a DPRC itself.
+ * Allocatable objects are always used in conjunction with some functional
+ * device. This function allocates an object of the specified type from
+ * the DPRC containing the functional device.
*
* NOTE: pool_type must be different from FSL_MC_POOL_MCP, since MC
* portals are allocated using fsl_mc_portal_allocate(), instead of
@@ -312,10 +310,9 @@ error:
EXPORT_SYMBOL_GPL(fsl_mc_object_allocate);
/**
- * fsl_mc_object_free - Returns an allocatable MC object device to the
- * corresponding resource pool of a given MC bus.
- *
- * @mc_adev: Pointer to the MC object device
+ * fsl_mc_object_free - Returns an fsl-mc object to the resource
+ * pool where it came from.
+ * @mc_adev: Pointer to the fsl-mc device
*/
void fsl_mc_object_free(struct fsl_mc_device *mc_adev)
{
@@ -332,8 +329,14 @@ void fsl_mc_object_free(struct fsl_mc_de
EXPORT_SYMBOL_GPL(fsl_mc_object_free);
/*
- * Initialize the interrupt pool associated with a MC bus.
- * It allocates a block of IRQs from the GIC-ITS
+ * A DPRC and the devices in the DPRC all share the same GIC-ITS device
+ * ID. A block of IRQs is pre-allocated and maintained in a pool
+ * from which devices can allocate them when needed.
+ */
+
+/*
+ * Initialize the interrupt pool associated with an fsl-mc bus.
+ * It allocates a block of IRQs from the GIC-ITS.
*/
int fsl_mc_populate_irq_pool(struct fsl_mc_bus *mc_bus,
unsigned int irq_count)
@@ -395,7 +398,7 @@ cleanup_msi_irqs:
EXPORT_SYMBOL_GPL(fsl_mc_populate_irq_pool);
/**
- * Teardown the interrupt pool associated with an MC bus.
+ * Teardown the interrupt pool associated with an fsl-mc bus.
* It frees the IRQs that were allocated to the pool, back to the GIC-ITS.
*/
void fsl_mc_cleanup_irq_pool(struct fsl_mc_bus *mc_bus)
@@ -422,11 +425,7 @@ void fsl_mc_cleanup_irq_pool(struct fsl_
EXPORT_SYMBOL_GPL(fsl_mc_cleanup_irq_pool);
/**
- * It allocates the IRQs required by a given MC object device. The
- * IRQs are allocated from the interrupt pool associated with the
- * MC bus that contains the device, if the device is not a DPRC device.
- * Otherwise, the IRQs are allocated from the interrupt pool associated
- * with the MC bus that represents the DPRC device itself.
+ * Allocate the IRQs required by a given fsl-mc device.
*/
int __must_check fsl_mc_allocate_irqs(struct fsl_mc_device *mc_dev)
{
@@ -495,8 +494,7 @@ error_resource_alloc:
EXPORT_SYMBOL_GPL(fsl_mc_allocate_irqs);
/*
- * It frees the IRQs that were allocated for a MC object device, by
- * returning them to the corresponding interrupt pool.
+ * Frees the IRQs that were allocated for an fsl-mc device.
*/
void fsl_mc_free_irqs(struct fsl_mc_device *mc_dev)
{
@@ -605,7 +603,7 @@ static int fsl_mc_allocator_probe(struct
return error;
dev_dbg(&mc_dev->dev,
- "Allocatable MC object device bound to fsl_mc_allocator driver");
+ "Allocatable fsl-mc device bound to fsl_mc_allocator driver");
return 0;
}
@@ -627,7 +625,7 @@ static int fsl_mc_allocator_remove(struc
}
dev_dbg(&mc_dev->dev,
- "Allocatable MC object device unbound from fsl_mc_allocator driver");
+ "Allocatable fsl-mc device unbound from fsl_mc_allocator driver");
return 0;
}
--- a/drivers/staging/fsl-mc/bus/fsl-mc-bus.c
+++ b/drivers/staging/fsl-mc/bus/fsl-mc-bus.c
@@ -1,7 +1,7 @@
/*
* Freescale Management Complex (MC) bus driver
*
- * Copyright (C) 2014 Freescale Semiconductor, Inc.
+ * Copyright (C) 2014-2016 Freescale Semiconductor, Inc.
* Author: German Rivera <German.Rivera@freescale.com>
*
* This file is licensed under the terms of the GNU General Public
@@ -9,6 +9,8 @@
* warranty of any kind, whether express or implied.
*/
+#define pr_fmt(fmt) "fsl-mc: " fmt
+
#include <linux/module.h>
#include <linux/of_device.h>
#include <linux/of_address.h>
@@ -25,8 +27,6 @@
#include "fsl-mc-private.h"
#include "dprc-cmd.h"
-static struct kmem_cache *mc_dev_cache;
-
/**
* Default DMA mask for devices on a fsl-mc bus
*/
@@ -34,7 +34,7 @@ static struct kmem_cache *mc_dev_cache;
/**
* struct fsl_mc - Private data of a "fsl,qoriq-mc" platform device
- * @root_mc_bus_dev: MC object device representing the root DPRC
+ * @root_mc_bus_dev: fsl-mc device representing the root DPRC
* @num_translation_ranges: number of entries in addr_translation_ranges
* @translation_ranges: array of bus to system address translation ranges
*/
@@ -62,8 +62,8 @@ struct fsl_mc_addr_translation_range {
/**
* fsl_mc_bus_match - device to driver matching callback
- * @dev: the MC object device structure to match against
- * @drv: the device driver to search for matching MC object device id
+ * @dev: the fsl-mc device to match against
+ * @drv: the device driver to search for matching fsl-mc object type
* structures
*
* Returns 1 on success, 0 otherwise.
@@ -75,8 +75,11 @@ static int fsl_mc_bus_match(struct devic
struct fsl_mc_driver *mc_drv = to_fsl_mc_driver(drv);
bool found = false;
- if (WARN_ON(!fsl_mc_bus_exists()))
+ /* When driver_override is set, only bind to the matching driver */
+ if (mc_dev->driver_override) {
+ found = !strcmp(mc_dev->driver_override, mc_drv->driver.name);
goto out;
+ }
if (!mc_drv->match_id_table)
goto out;
@@ -91,7 +94,7 @@ static int fsl_mc_bus_match(struct devic
/*
* Traverse the match_id table of the given driver, trying to find
- * a matching for the given MC object device.
+ * a matching for the given device.
*/
for (id = mc_drv->match_id_table; id->vendor != 0x0; id++) {
if (id->vendor == mc_dev->obj_desc.vendor &&
@@ -132,23 +135,141 @@ static ssize_t modalias_show(struct devi
}
static DEVICE_ATTR_RO(modalias);
+static ssize_t rescan_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ unsigned long val;
+ unsigned int irq_count;
+ struct fsl_mc_device *root_mc_dev;
+ struct fsl_mc_bus *root_mc_bus;
+
+ if (!fsl_mc_is_root_dprc(dev))
+ return -EINVAL;
+
+ root_mc_dev = to_fsl_mc_device(dev);
+ root_mc_bus = to_fsl_mc_bus(root_mc_dev);
+
+ if (kstrtoul(buf, 0, &val) < 0)
+ return -EINVAL;
+
+ if (val) {
+ mutex_lock(&root_mc_bus->scan_mutex);
+ dprc_scan_objects(root_mc_dev, NULL, &irq_count);
+ mutex_unlock(&root_mc_bus->scan_mutex);
+ }
+
+ return count;
+}
+static DEVICE_ATTR_WO(rescan);
+
+static ssize_t driver_override_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
+ const char *driver_override, *old = mc_dev->driver_override;
+ char *cp;
+
+ if (WARN_ON(dev->bus != &fsl_mc_bus_type))
+ return -EINVAL;
+
+ if (count >= (PAGE_SIZE - 1))
+ return -EINVAL;
+
+ driver_override = kstrndup(buf, count, GFP_KERNEL);
+ if (!driver_override)
+ return -ENOMEM;
+
+ cp = strchr(driver_override, '\n');
+ if (cp)
+ *cp = '\0';
+
+ if (strlen(driver_override)) {
+ mc_dev->driver_override = driver_override;
+ } else {
+ kfree(driver_override);
+ mc_dev->driver_override = NULL;
+ }
+
+ kfree(old);
+
+ return count;
+}
+
+static ssize_t driver_override_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
+
+ return snprintf(buf, PAGE_SIZE, "%s\n", mc_dev->driver_override);
+}
+static DEVICE_ATTR_RW(driver_override);
+
static struct attribute *fsl_mc_dev_attrs[] = {
&dev_attr_modalias.attr,
+ &dev_attr_rescan.attr,
+ &dev_attr_driver_override.attr,
NULL,
};
ATTRIBUTE_GROUPS(fsl_mc_dev);
+static int scan_fsl_mc_bus(struct device *dev, void *data)
+{
+ unsigned int irq_count;
+ struct fsl_mc_device *root_mc_dev;
+ struct fsl_mc_bus *root_mc_bus;
+
+ if (fsl_mc_is_root_dprc(dev)) {
+ root_mc_dev = to_fsl_mc_device(dev);
+ root_mc_bus = to_fsl_mc_bus(root_mc_dev);
+ mutex_lock(&root_mc_bus->scan_mutex);
+ dprc_scan_objects(root_mc_dev, NULL, &irq_count);
+ mutex_unlock(&root_mc_bus->scan_mutex);
+ }
+
+ return 0;
+}
+
+static ssize_t bus_rescan_store(struct bus_type *bus,
+ const char *buf, size_t count)
+{
+ unsigned long val;
+
+ if (kstrtoul(buf, 0, &val) < 0)
+ return -EINVAL;
+
+ if (val)
+ bus_for_each_dev(bus, NULL, NULL, scan_fsl_mc_bus);
+
+ return count;
+}
+static BUS_ATTR(rescan, (S_IWUSR | S_IWGRP), NULL, bus_rescan_store);
+
+static struct attribute *fsl_mc_bus_attrs[] = {
+ &bus_attr_rescan.attr,
+ NULL,
+};
+
+static const struct attribute_group fsl_mc_bus_group = {
+ .attrs = fsl_mc_bus_attrs,
+};
+
+static const struct attribute_group *fsl_mc_bus_groups[] = {
+ &fsl_mc_bus_group,
+ NULL,
+};
+
struct bus_type fsl_mc_bus_type = {
.name = "fsl-mc",
.match = fsl_mc_bus_match,
.uevent = fsl_mc_bus_uevent,
.dev_groups = fsl_mc_dev_groups,
+ .bus_groups = fsl_mc_bus_groups,
};
EXPORT_SYMBOL_GPL(fsl_mc_bus_type);
-static atomic_t root_dprc_count = ATOMIC_INIT(0);
-
static int fsl_mc_driver_probe(struct device *dev)
{
struct fsl_mc_driver *mc_drv;
@@ -164,8 +285,7 @@ static int fsl_mc_driver_probe(struct de
error = mc_drv->probe(mc_dev);
if (error < 0) {
- dev_err(dev, "MC object device probe callback failed: %d\n",
- error);
+ dev_err(dev, "%s failed: %d\n", __func__, error);
return error;
}
@@ -183,9 +303,7 @@ static int fsl_mc_driver_remove(struct d
error = mc_drv->remove(mc_dev);
if (error < 0) {
- dev_err(dev,
- "MC object device remove callback failed: %d\n",
- error);
+ dev_err(dev, "%s failed: %d\n", __func__, error);
return error;
}
@@ -232,8 +350,6 @@ int __fsl_mc_driver_register(struct fsl_
return error;
}
- pr_info("MC object device driver %s registered\n",
- mc_driver->driver.name);
return 0;
}
EXPORT_SYMBOL_GPL(__fsl_mc_driver_register);
@@ -249,15 +365,6 @@ void fsl_mc_driver_unregister(struct fsl
EXPORT_SYMBOL_GPL(fsl_mc_driver_unregister);
/**
- * fsl_mc_bus_exists - check if a root dprc exists
- */
-bool fsl_mc_bus_exists(void)
-{
- return atomic_read(&root_dprc_count) > 0;
-}
-EXPORT_SYMBOL_GPL(fsl_mc_bus_exists);
-
-/**
* fsl_mc_get_root_dprc - function to traverse to the root dprc
*/
void fsl_mc_get_root_dprc(struct device *dev,
@@ -315,21 +422,6 @@ static int get_dprc_icid(struct fsl_mc_i
return error;
}
-static int get_dprc_version(struct fsl_mc_io *mc_io,
- int container_id, u16 *major, u16 *minor)
-{
- struct dprc_attributes attr;
- int error;
-
- error = get_dprc_attr(mc_io, container_id, &attr);
- if (error == 0) {
- *major = attr.version.major;
- *minor = attr.version.minor;
- }
-
- return error;
-}
-
static int translate_mc_addr(struct fsl_mc_device *mc_dev,
enum dprc_region_type mc_region_type,
u64 mc_offset, phys_addr_t *phys_addr)
@@ -451,18 +543,37 @@ bool fsl_mc_is_root_dprc(struct device *
return dev == root_dprc_dev;
}
+static void fsl_mc_device_release(struct device *dev)
+{
+ struct fsl_mc_device *mc_dev = to_fsl_mc_device(dev);
+ struct fsl_mc_bus *mc_bus = NULL;
+
+ kfree(mc_dev->regions);
+
+ if (strcmp(mc_dev->obj_desc.type, "dprc") == 0)
+ mc_bus = to_fsl_mc_bus(mc_dev);
+
+ if (mc_bus)
+ kfree(mc_bus);
+ else
+ kfree(mc_dev);
+}
+
/**
- * Add a newly discovered MC object device to be visible in Linux
+ * Add a newly discovered fsl-mc device to be visible in Linux
*/
int fsl_mc_device_add(struct dprc_obj_desc *obj_desc,
struct fsl_mc_io *mc_io,
struct device *parent_dev,
+ const char *driver_override,
struct fsl_mc_device **new_mc_dev)
{
int error;
struct fsl_mc_device *mc_dev = NULL;
struct fsl_mc_bus *mc_bus = NULL;
struct fsl_mc_device *parent_mc_dev;
+ struct device *fsl_mc_platform_dev;
+ struct device_node *fsl_mc_platform_node;
if (dev_is_fsl_mc(parent_dev))
parent_mc_dev = to_fsl_mc_device(parent_dev);
@@ -473,7 +584,7 @@ int fsl_mc_device_add(struct dprc_obj_de
/*
* Allocate an MC bus device object:
*/
- mc_bus = devm_kzalloc(parent_dev, sizeof(*mc_bus), GFP_KERNEL);
+ mc_bus = kzalloc(sizeof(*mc_bus), GFP_KERNEL);
if (!mc_bus)
return -ENOMEM;
@@ -482,16 +593,30 @@ int fsl_mc_device_add(struct dprc_obj_de
/*
* Allocate a regular fsl_mc_device object:
*/
- mc_dev = kmem_cache_zalloc(mc_dev_cache, GFP_KERNEL);
+ mc_dev = kzalloc(sizeof(*mc_dev), GFP_KERNEL);
if (!mc_dev)
return -ENOMEM;
}
mc_dev->obj_desc = *obj_desc;
mc_dev->mc_io = mc_io;
+
+ if (driver_override) {
+ /*
+ * We trust driver_override, so we don't need to use
+ * kstrndup() here
+ */
+ mc_dev->driver_override = kstrdup(driver_override, GFP_KERNEL);
+ if (!mc_dev->driver_override) {
+ error = -ENOMEM;
+ goto error_cleanup_dev;
+ }
+ }
+
device_initialize(&mc_dev->dev);
mc_dev->dev.parent = parent_dev;
mc_dev->dev.bus = &fsl_mc_bus_type;
+ mc_dev->dev.release = fsl_mc_device_release;
dev_set_name(&mc_dev->dev, "%s.%d", obj_desc->type, obj_desc->id);
if (strcmp(obj_desc->type, "dprc") == 0) {
@@ -524,8 +649,6 @@ int fsl_mc_device_add(struct dprc_obj_de
}
mc_io2 = mc_io;
-
- atomic_inc(&root_dprc_count);
}
error = get_dprc_icid(mc_io2, obj_desc->id, &mc_dev->icid);
@@ -533,8 +656,8 @@ int fsl_mc_device_add(struct dprc_obj_de
goto error_cleanup_dev;
} else {
/*
- * A non-DPRC MC object device has to be a child of another
- * MC object (specifically a DPRC object)
+ * A non-DPRC object has to be a child of a DPRC, use the
+ * parent's ICID and interrupt domain.
*/
mc_dev->icid = parent_mc_dev->icid;
mc_dev->dma_mask = FSL_MC_DEFAULT_DMA_MASK;
@@ -556,9 +679,14 @@ int fsl_mc_device_add(struct dprc_obj_de
goto error_cleanup_dev;
}
- /* Objects are coherent, unless 'no shareability' flag set. */
- if (!(obj_desc->flags & DPRC_OBJ_FLAG_NO_MEM_SHAREABILITY))
- arch_setup_dma_ops(&mc_dev->dev, 0, 0, NULL, true);
+ fsl_mc_platform_dev = &mc_dev->dev;
+ while (dev_is_fsl_mc(fsl_mc_platform_dev))
+ fsl_mc_platform_dev = fsl_mc_platform_dev->parent;
+ fsl_mc_platform_node = fsl_mc_platform_dev->of_node;
+
+ /* Set up the iommu configuration for the devices. */
+ fsl_mc_dma_configure(mc_dev, fsl_mc_platform_node,
+ !(obj_desc->flags & DPRC_OBJ_FLAG_NO_MEM_SHAREABILITY));
/*
* The device-specific probe callback will get invoked by device_add()
@@ -571,9 +699,7 @@ int fsl_mc_device_add(struct dprc_obj_de
goto error_cleanup_dev;
}
- (void)get_device(&mc_dev->dev);
- dev_dbg(parent_dev, "Added MC object device %s\n",
- dev_name(&mc_dev->dev));
+ dev_dbg(parent_dev, "added %s\n", dev_name(&mc_dev->dev));
*new_mc_dev = mc_dev;
return 0;
@@ -581,47 +707,34 @@ int fsl_mc_device_add(struct dprc_obj_de
error_cleanup_dev:
kfree(mc_dev->regions);
if (mc_bus)
- devm_kfree(parent_dev, mc_bus);
+ kfree(mc_bus);
else
- kmem_cache_free(mc_dev_cache, mc_dev);
+ kfree(mc_dev);
return error;
}
EXPORT_SYMBOL_GPL(fsl_mc_device_add);
/**
- * fsl_mc_device_remove - Remove a MC object device from being visible to
+ * fsl_mc_device_remove - Remove an fsl-mc device from being visible to
* Linux
*
- * @mc_dev: Pointer to a MC object device object
+ * @mc_dev: Pointer to an fsl-mc device
*/
void fsl_mc_device_remove(struct fsl_mc_device *mc_dev)
{
- struct fsl_mc_bus *mc_bus = NULL;
-
- kfree(mc_dev->regions);
+ kfree(mc_dev->driver_override);
+ mc_dev->driver_override = NULL;
/*
* The device-specific remove callback will get invoked by device_del()
*/
device_del(&mc_dev->dev);
- put_device(&mc_dev->dev);
- if (strcmp(mc_dev->obj_desc.type, "dprc") == 0) {
- mc_bus = to_fsl_mc_bus(mc_dev);
-
- if (fsl_mc_is_root_dprc(&mc_dev->dev)) {
- if (atomic_read(&root_dprc_count) > 0)
- atomic_dec(&root_dprc_count);
- else
- WARN_ON(1);
- }
- }
+ if (strcmp(mc_dev->obj_desc.type, "dprc") != 0)
+ mc_dev->dev.iommu_fwspec = NULL;
- if (mc_bus)
- devm_kfree(mc_dev->dev.parent, mc_bus);
- else
- kmem_cache_free(mc_dev_cache, mc_dev);
+ put_device(&mc_dev->dev);
}
EXPORT_SYMBOL_GPL(fsl_mc_device_remove);
@@ -629,8 +742,7 @@ static int parse_mc_ranges(struct device
int *paddr_cells,
int *mc_addr_cells,
int *mc_size_cells,
- const __be32 **ranges_start,
- u8 *num_ranges)
+ const __be32 **ranges_start)
{
const __be32 *prop;
int range_tuple_cell_count;
@@ -643,8 +755,6 @@ static int parse_mc_ranges(struct device
dev_warn(dev,
"missing or empty ranges property for device tree node '%s'\n",
mc_node->name);
-
- *num_ranges = 0;
return 0;
}
@@ -671,8 +781,7 @@ static int parse_mc_ranges(struct device
return -EINVAL;
}
- *num_ranges = ranges_len / tuple_len;
- return 0;
+ return ranges_len / tuple_len;
}
static int get_mc_addr_translation_ranges(struct device *dev,
@@ -680,7 +789,7 @@ static int get_mc_addr_translation_range
**ranges,
u8 *num_ranges)
{
- int error;
+ int ret;
int paddr_cells;
int mc_addr_cells;
int mc_size_cells;
@@ -688,16 +797,16 @@ static int get_mc_addr_translation_range
const __be32 *ranges_start;
const __be32 *cell;
- error = parse_mc_ranges(dev,
+ ret = parse_mc_ranges(dev,
&paddr_cells,
&mc_addr_cells,
&mc_size_cells,
- &ranges_start,
- num_ranges);
- if (error < 0)
- return error;
+ &ranges_start);
+ if (ret < 0)
+ return ret;
- if (!(*num_ranges)) {
+ *num_ranges = ret;
+ if (!ret) {
/*
* Missing or empty ranges property ("ranges;") for the
* 'fsl,qoriq-mc' node. In this case, identity mapping
@@ -749,8 +858,6 @@ static int fsl_mc_bus_probe(struct platf
struct mc_version mc_version;
struct resource res;
- dev_info(&pdev->dev, "Root MC bus device probed");
-
mc = devm_kzalloc(&pdev->dev, sizeof(*mc), GFP_KERNEL);
if (!mc)
return -ENOMEM;
@@ -783,8 +890,7 @@ static int fsl_mc_bus_probe(struct platf
goto error_cleanup_mc_io;
}
- dev_info(&pdev->dev,
- "Freescale Management Complex Firmware version: %u.%u.%u\n",
+ dev_info(&pdev->dev, "MC firmware version: %u.%u.%u\n",
mc_version.major, mc_version.minor, mc_version.revision);
error = get_mc_addr_translation_ranges(&pdev->dev,
@@ -793,16 +899,17 @@ static int fsl_mc_bus_probe(struct platf
if (error < 0)
goto error_cleanup_mc_io;
- error = dpmng_get_container_id(mc_io, 0, &container_id);
+ error = dprc_get_container_id(mc_io, 0, &container_id);
if (error < 0) {
dev_err(&pdev->dev,
- "dpmng_get_container_id() failed: %d\n", error);
+ "dprc_get_container_id() failed: %d\n", error);
goto error_cleanup_mc_io;
}
memset(&obj_desc, 0, sizeof(struct dprc_obj_desc));
- error = get_dprc_version(mc_io, container_id,
- &obj_desc.ver_major, &obj_desc.ver_minor);
+ error = dprc_get_api_version(mc_io, 0,
+ &obj_desc.ver_major,
+ &obj_desc.ver_minor);
if (error < 0)
goto error_cleanup_mc_io;
@@ -812,7 +919,8 @@ static int fsl_mc_bus_probe(struct platf
obj_desc.irq_count = 1;
obj_desc.region_count = 0;
- error = fsl_mc_device_add(&obj_desc, mc_io, &pdev->dev, &mc_bus_dev);
+ error = fsl_mc_device_add(&obj_desc, mc_io, &pdev->dev, NULL,
+ &mc_bus_dev);
if (error < 0)
goto error_cleanup_mc_io;
@@ -840,7 +948,6 @@ static int fsl_mc_bus_remove(struct plat
fsl_destroy_mc_io(mc->root_mc_bus_dev->mc_io);
mc->root_mc_bus_dev->mc_io = NULL;
- dev_info(&pdev->dev, "Root MC bus device removed");
return 0;
}
@@ -865,22 +972,12 @@ static int __init fsl_mc_bus_driver_init
{
int error;
- mc_dev_cache = kmem_cache_create("fsl_mc_device",
- sizeof(struct fsl_mc_device), 0, 0,
- NULL);
- if (!mc_dev_cache) {
- pr_err("Could not create fsl_mc_device cache\n");
- return -ENOMEM;
- }
-
error = bus_register(&fsl_mc_bus_type);
if (error < 0) {
- pr_err("fsl-mc bus type registration failed: %d\n", error);
+ pr_err("bus type registration failed: %d\n", error);
goto error_cleanup_cache;
}
- pr_info("fsl-mc bus type registered\n");
-
error = platform_driver_register(&fsl_mc_bus_driver);
if (error < 0) {
pr_err("platform_driver_register() failed: %d\n", error);
@@ -914,7 +1011,6 @@ error_cleanup_bus:
bus_unregister(&fsl_mc_bus_type);
error_cleanup_cache:
- kmem_cache_destroy(mc_dev_cache);
return error;
}
postcore_initcall(fsl_mc_bus_driver_init);
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/fsl-mc-iommu.c
@@ -0,0 +1,104 @@
+/*
+ * Copyright 2016-17 NXP
+ * Author: Nipun Gupta <nipun.gupta@nxp.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/iommu.h>
+#include <linux/of.h>
+#include <linux/of_iommu.h>
+#include "../include/mc.h"
+
+/* Setup the IOMMU for the DPRC container */
+static const struct iommu_ops
+*fsl_mc_iommu_configure(struct fsl_mc_device *mc_dev,
+ struct device_node *fsl_mc_platform_node)
+{
+ struct of_phandle_args iommu_spec;
+ const struct iommu_ops *ops;
+ u32 iommu_phandle;
+ struct device_node *iommu_node;
+ const __be32 *map = NULL;
+ int iommu_cells, map_len, ret;
+
+ map = of_get_property(fsl_mc_platform_node, "iommu-map", &map_len);
+ if (!map)
+ return NULL;
+
+ ops = mc_dev->dev.bus->iommu_ops;
+ if (!ops || !ops->of_xlate)
+ return NULL;
+
+ iommu_phandle = be32_to_cpup(map + 1);
+ iommu_node = of_find_node_by_phandle(iommu_phandle);
+
+ if (of_property_read_u32(iommu_node, "#iommu-cells", &iommu_cells)) {
+ pr_err("%s: missing #iommu-cells property\n", iommu_node->name);
+ return NULL;
+ }
+
+ /* Initialize the fwspec */
+ ret = iommu_fwspec_init(&mc_dev->dev, &iommu_node->fwnode, ops);
+ if (ret)
+ return NULL;
+
+ /*
+ * Fill in the required stream-id before calling the iommu's
+ * ops->xlate callback.
+ */
+ iommu_spec.np = iommu_node;
+ iommu_spec.args[0] = mc_dev->icid;
+ iommu_spec.args_count = 1;
+
+ ret = ops->of_xlate(&mc_dev->dev, &iommu_spec);
+ if (ret)
+ return NULL;
+
+ of_node_put(iommu_spec.np);
+
+ return ops;
+}
+
+/* Set up DMA configuration for fsl-mc devices */
+void fsl_mc_dma_configure(struct fsl_mc_device *mc_dev,
+ struct device_node *fsl_mc_platform_node, int coherent)
+{
+ const struct iommu_ops *ops;
+
+ ops = fsl_mc_iommu_configure(mc_dev, fsl_mc_platform_node);
+
+ mc_dev->dev.coherent_dma_mask = DMA_BIT_MASK(48);
+ mc_dev->dev.dma_mask = &mc_dev->dev.coherent_dma_mask;
+ arch_setup_dma_ops(&mc_dev->dev, 0,
+ mc_dev->dev.coherent_dma_mask + 1, ops, coherent);
+}
+
+/* Macro to get the container device of a MC device */
+#define fsl_mc_cont_dev(_dev) ((to_fsl_mc_device(_dev)->flags & \
+ FSL_MC_IS_DPRC) ? (_dev) : ((_dev)->parent))
+
+/* Macro to check if a device is a container device */
+#define is_cont_dev(_dev) (to_fsl_mc_device(_dev)->flags & FSL_MC_IS_DPRC)
+
+/* Get the IOMMU group for device on fsl-mc bus */
+struct iommu_group *fsl_mc_device_group(struct device *dev)
+{
+ struct device *cont_dev = fsl_mc_cont_dev(dev);
+ struct iommu_group *group;
+
+ /* Container device is responsible for creating the iommu group */
+ if (is_cont_dev(dev)) {
+ group = iommu_group_alloc();
+ if (IS_ERR(group))
+ return NULL;
+ } else {
+ get_device(cont_dev);
+ group = iommu_group_get(cont_dev);
+ put_device(cont_dev);
+ }
+
+ return group;
+}
--- a/drivers/staging/fsl-mc/bus/fsl-mc-msi.c
+++ b/drivers/staging/fsl-mc/bus/fsl-mc-msi.c
@@ -1,7 +1,7 @@
/*
* Freescale Management Complex (MC) bus driver MSI support
*
- * Copyright (C) 2015 Freescale Semiconductor, Inc.
+ * Copyright (C) 2015-2016 Freescale Semiconductor, Inc.
* Author: German Rivera <German.Rivera@freescale.com>
*
* This file is licensed under the terms of the GNU General Public
--- a/drivers/staging/fsl-mc/bus/fsl-mc-private.h
+++ b/drivers/staging/fsl-mc/bus/fsl-mc-private.h
@@ -10,13 +10,15 @@
#ifndef _FSL_MC_PRIVATE_H_
#define _FSL_MC_PRIVATE_H_
+#include "../include/mc.h"
+#include "../include/mc-bus.h"
+
int __must_check fsl_mc_device_add(struct dprc_obj_desc *obj_desc,
struct fsl_mc_io *mc_io,
struct device *parent_dev,
+ const char *driver_override,
struct fsl_mc_device **new_mc_dev);
-void fsl_mc_device_remove(struct fsl_mc_device *mc_dev);
-
int __init dprc_driver_init(void);
void dprc_driver_exit(void);
--- a/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c
+++ b/drivers/staging/fsl-mc/bus/irq-gic-v3-its-fsl-mc-msi.c
@@ -1,7 +1,7 @@
/*
* Freescale Management Complex (MC) bus driver MSI support
*
- * Copyright (C) 2015 Freescale Semiconductor, Inc.
+ * Copyright (C) 2015-2016 Freescale Semiconductor, Inc.
* Author: German Rivera <German.Rivera@freescale.com>
*
* This file is licensed under the terms of the GNU General Public
@@ -20,7 +20,7 @@
#include "fsl-mc-private.h"
static struct irq_chip its_msi_irq_chip = {
- .name = "fsl-mc-bus-msi",
+ .name = "ITS-fMSI",
.irq_mask = irq_chip_mask_parent,
.irq_unmask = irq_chip_unmask_parent,
.irq_eoi = irq_chip_eoi_parent,
@@ -52,7 +52,7 @@ static int its_fsl_mc_msi_prepare(struct
return msi_info->ops->msi_prepare(msi_domain->parent, dev, nvec, info);
}
-static struct msi_domain_ops its_fsl_mc_msi_ops = {
+static struct msi_domain_ops its_fsl_mc_msi_ops __ro_after_init = {
.msi_prepare = its_fsl_mc_msi_prepare,
};
@@ -95,8 +95,8 @@ int __init its_fsl_mc_msi_init(void)
continue;
}
- WARN_ON(mc_msi_domain->
- host_data != &its_fsl_mc_msi_domain_info);
+ WARN_ON(mc_msi_domain->host_data !=
+ &its_fsl_mc_msi_domain_info);
pr_info("fsl-mc MSI: %s domain created\n", np->full_name);
}
--- a/drivers/staging/fsl-mc/bus/mc-io.c
+++ b/drivers/staging/fsl-mc/bus/mc-io.c
@@ -1,4 +1,5 @@
-/* Copyright 2013-2016 Freescale Semiconductor Inc.
+/*
+ * Copyright 2013-2016 Freescale Semiconductor Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@@ -11,7 +12,6 @@
* names of any contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
- *
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") as published by the Free Software
* Foundation, either version 2 of that License or (at your option) any
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/mc-ioctl.h
@@ -0,0 +1,22 @@
+/*
+ * Freescale Management Complex (MC) ioclt interface
+ *
+ * Copyright (C) 2014 Freescale Semiconductor, Inc.
+ * Author: Lijun Pan <Lijun.Pan@freescale.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+#ifndef _FSL_MC_IOCTL_H_
+#define _FSL_MC_IOCTL_H_
+
+#include <linux/ioctl.h>
+#include "../include/mc-sys.h"
+
+#define RESTOOL_IOCTL_TYPE 'R'
+
+#define RESTOOL_SEND_MC_COMMAND \
+ _IOWR(RESTOOL_IOCTL_TYPE, 0xE0, struct mc_command)
+
+#endif /* _FSL_MC_IOCTL_H_ */
--- /dev/null
+++ b/drivers/staging/fsl-mc/bus/mc-restool.c
@@ -0,0 +1,405 @@
+/*
+ * Freescale Management Complex (MC) restool driver
+ *
+ * Copyright (C) 2014 Freescale Semiconductor, Inc.
+ * Author: Lijun Pan <Lijun.Pan@freescale.com>
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include "../include/mc.h"
+#include <linux/module.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/mm.h>
+#include <linux/slab.h>
+#include <linux/uaccess.h>
+#include <linux/mutex.h>
+#include <linux/platform_device.h>
+#include "mc-ioctl.h"
+#include "../include/mc-sys.h"
+#include "../include/mc-bus.h"
+#include "../include/mc-cmd.h"
+#include "../include/dpmng.h"
+
+/**
+ * Maximum number of DPRCs that can be opened at the same time
+ */
+#define MAX_DPRC_HANDLES 64
+
+/**
+ * restool_misc - information associated with the newly added miscdevice
+ * @misc: newly created miscdevice associated with root dprc
+ * @miscdevt: device id of this miscdevice
+ * @list: a linked list node representing this miscdevcie
+ * @static_mc_io: pointer to the static MC I/O object used by the restool
+ * @dynamic_instance_count: number of dynamically created instances
+ * @static_instance_in_use: static instance is in use or not
+ * @mutex: mutex lock to serialze the open/release operations
+ * @dev: root dprc associated with this miscdevice
+ */
+struct restool_misc {
+ struct miscdevice misc;
+ dev_t miscdevt;
+ struct list_head list;
+ struct fsl_mc_io *static_mc_io;
+ u32 dynamic_instance_count;
+ bool static_instance_in_use;
+ struct mutex mutex; /* serialze the open/release operations */
+ struct device *dev;
+};
+
+/**
+ * struct fsl_mc - Private data of a "fsl,qoriq-mc" platform device
+ * @root_mc_bus_dev: fsl-mc device representing the root DPRC
+ * @num_translation_ranges: number of entries in addr_translation_ranges
+ * @translation_ranges: array of bus to system address translation ranges
+ */
+struct fsl_mc {
+ struct fsl_mc_device *root_mc_bus_dev;
+ u8 num_translation_ranges;
+ struct fsl_mc_addr_translation_range *translation_ranges;
+};
+
+/*
+ * initialize a global list to link all
+ * the miscdevice nodes (struct restool_misc)
+ */
+static LIST_HEAD(misc_list);
+static DEFINE_MUTEX(misc_list_mutex);
+
+static int fsl_mc_restool_dev_open(struct inode *inode, struct file *filep)
+{
+ struct fsl_mc_device *root_mc_dev;
+ int error;
+ struct fsl_mc_io *dynamic_mc_io = NULL;
+ struct restool_misc *restool_misc = NULL;
+ struct restool_misc *restool_misc_cursor;
+
+ mutex_lock(&misc_list_mutex);
+
+ list_for_each_entry(restool_misc_cursor, &misc_list, list) {
+ if (restool_misc_cursor->miscdevt == inode->i_rdev) {
+ restool_misc = restool_misc_cursor;
+ break;
+ }
+ }
+
+ mutex_unlock(&misc_list_mutex);
+
+ if (!restool_misc)
+ return -EINVAL;
+
+ if (WARN_ON(!restool_misc->dev))
+ return -EINVAL;
+
+ mutex_lock(&restool_misc->mutex);
+
+ if (!restool_misc->static_instance_in_use) {
+ restool_misc->static_instance_in_use = true;
+ filep->private_data = restool_misc->static_mc_io;
+ } else {
+ dynamic_mc_io = kzalloc(sizeof(*dynamic_mc_io), GFP_KERNEL);
+ if (!dynamic_mc_io) {
+ error = -ENOMEM;
+ goto err_unlock;
+ }
+
+ root_mc_dev = to_fsl_mc_device(restool_misc->dev);
+ error = fsl_mc_portal_allocate(root_mc_dev, 0, &dynamic_mc_io);
+ if (error < 0) {
+ pr_err("Not able to allocate MC portal\n");
+ goto free_dynamic_mc_io;
+ }
+ ++restool_misc->dynamic_instance_count;
+ filep->private_data = dynamic_mc_io;
+ }
+
+ mutex_unlock(&restool_misc->mutex);
+
+ return 0;
+
+free_dynamic_mc_io:
+ kfree(dynamic_mc_io);
+err_unlock:
+ mutex_unlock(&restool_misc->mutex);
+
+ return error;
+}
+
+static int fsl_mc_restool_dev_release(struct inode *inode, struct file *filep)
+{
+ struct fsl_mc_io *local_mc_io = filep->private_data;
+ struct restool_misc *restool_misc = NULL;
+ struct restool_misc *restool_misc_cursor;
+
+ if (WARN_ON(!filep->private_data))
+ return -EINVAL;
+
+ mutex_lock(&misc_list_mutex);
+
+ list_for_each_entry(restool_misc_cursor, &misc_list, list) {
+ if (restool_misc_cursor->miscdevt == inode->i_rdev) {
+ restool_misc = restool_misc_cursor;
+ break;
+ }
+ }
+
+ mutex_unlock(&misc_list_mutex);
+
+ if (!restool_misc)
+ return -EINVAL;
+
+ mutex_lock(&restool_misc->mutex);
+
+ if (WARN_ON(restool_misc->dynamic_instance_count == 0 &&
+ !restool_misc->static_instance_in_use)) {
+ mutex_unlock(&restool_misc->mutex);
+ return -EINVAL;
+ }
+
+ /* Globally clean up opened/untracked handles */
+ fsl_mc_portal_reset(local_mc_io);
+
+ /*
+ * must check
+ * whether local_mc_io is dynamic or static instance
+ * Otherwise it will free up the reserved portal by accident
+ * or even not free up the dynamic allocated portal
+ * if 2 or more instances running concurrently
+ */
+ if (local_mc_io == restool_misc->static_mc_io) {
+ restool_misc->static_instance_in_use = false;
+ } else {
+ fsl_mc_portal_free(local_mc_io);
+ kfree(filep->private_data);
+ --restool_misc->dynamic_instance_count;
+ }
+
+ filep->private_data = NULL;
+ mutex_unlock(&restool_misc->mutex);
+
+ return 0;
+}
+
+static int restool_send_mc_command(unsigned long arg,
+ struct fsl_mc_io *local_mc_io)
+{
+ int error;
+ struct mc_command mc_cmd;
+
+ if (copy_from_user(&mc_cmd, (void __user *)arg, sizeof(mc_cmd)))
+ return -EFAULT;
+
+ /*
+ * Send MC command to the MC:
+ */
+ error = mc_send_command(local_mc_io, &mc_cmd);
+ if (error < 0)
+ return error;
+
+ if (copy_to_user((void __user *)arg, &mc_cmd, sizeof(mc_cmd)))
+ return -EFAULT;
+
+ return 0;
+}
+
+static long
+fsl_mc_restool_dev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+ int error;
+
+ switch (cmd) {
+ case RESTOOL_SEND_MC_COMMAND:
+ error = restool_send_mc_command(arg, file->private_data);
+ break;
+ default:
+ pr_err("%s: unexpected ioctl call number\n", __func__);
+ error = -EINVAL;
+ }
+
+ return error;
+}
+
+static const struct file_operations fsl_mc_restool_dev_fops = {
+ .owner = THIS_MODULE,
+ .open = fsl_mc_restool_dev_open,
+ .release = fsl_mc_restool_dev_release,
+ .unlocked_ioctl = fsl_mc_restool_dev_ioctl,
+};
+
+static int restool_add_device_file(struct device *dev)
+{
+ u32 name1 = 0;
+ char name2[20] = {0};
+ int error;
+ struct fsl_mc_device *root_mc_dev;
+ struct restool_misc *restool_misc;
+
+ if (dev->bus == &platform_bus_type && dev->driver_data) {
+ if (sscanf(dev_name(dev), "%x.%s", &name1, name2) != 2)
+ return -EINVAL;
+
+ if (strcmp(name2, "fsl-mc") == 0)
+ pr_debug("platform's root dprc name is: %s\n",
+ dev_name(&(((struct fsl_mc *)
+ (dev->driver_data))->root_mc_bus_dev->dev)));
+ }
+
+ if (!fsl_mc_is_root_dprc(dev))
+ return 0;
+
+ restool_misc = kzalloc(sizeof(*restool_misc), GFP_KERNEL);
+ if (!restool_misc)
+ return -ENOMEM;
+
+ restool_misc->dev = dev;
+ root_mc_dev = to_fsl_mc_device(dev);
+ error = fsl_mc_portal_allocate(root_mc_dev, 0,
+ &restool_misc->static_mc_io);
+ if (error < 0) {
+ pr_err("Not able to allocate MC portal\n");
+ goto free_restool_misc;
+ }
+
+ restool_misc->misc.minor = MISC_DYNAMIC_MINOR;
+ restool_misc->misc.name = dev_name(dev);
+ restool_misc->misc.fops = &fsl_mc_restool_dev_fops;
+
+ error = misc_register(&restool_misc->misc);
+ if (error < 0) {
+ pr_err("misc_register() failed: %d\n", error);
+ goto free_portal;
+ }
+
+ restool_misc->miscdevt = restool_misc->misc.this_device->devt;
+ mutex_init(&restool_misc->mutex);
+ mutex_lock(&misc_list_mutex);
+ list_add(&restool_misc->list, &misc_list);
+ mutex_unlock(&misc_list_mutex);
+
+ pr_info("/dev/%s driver registered\n", dev_name(dev));
+
+ return 0;
+
+free_portal:
+ fsl_mc_portal_free(restool_misc->static_mc_io);
+free_restool_misc:
+ kfree(restool_misc);
+
+ return error;
+}
+
+static int restool_bus_notifier(struct notifier_block *nb,
+ unsigned long action, void *data)
+{
+ int error;
+ struct device *dev = data;
+
+ switch (action) {
+ case BUS_NOTIFY_ADD_DEVICE:
+ error = restool_add_device_file(dev);
+ if (error)
+ return error;
+ break;
+ case BUS_NOTIFY_DEL_DEVICE:
+ case BUS_NOTIFY_REMOVED_DEVICE:
+ case BUS_NOTIFY_BIND_DRIVER:
+ case BUS_NOTIFY_BOUND_DRIVER:
+ case BUS_NOTIFY_UNBIND_DRIVER:
+ case BUS_NOTIFY_UNBOUND_DRIVER:
+ break;
+ default:
+ pr_err("%s: unrecognized device action from %s\n", __func__,
+ dev_name(dev));
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int add_to_restool(struct device *dev, void *data)
+{
+ return restool_add_device_file(dev);
+}
+
+static int __init fsl_mc_restool_driver_init(void)
+{
+ int error;
+ struct notifier_block *nb;
+
+ nb = kzalloc(sizeof(*nb), GFP_KERNEL);
+ if (!nb)
+ return -ENOMEM;
+
+ nb->notifier_call = restool_bus_notifier;
+ error = bus_register_notifier(&fsl_mc_bus_type, nb);
+ if (error)
+ goto free_nb;
+
+ /*
+ * This driver runs after fsl-mc bus driver runs.
+ * Hence, many of the root dprcs are already attached to fsl-mc bus
+ * In order to make sure we find all the root dprcs,
+ * we need to scan the fsl_mc_bus_type.
+ */
+ error = bus_for_each_dev(&fsl_mc_bus_type, NULL, NULL, add_to_restool);
+ if (error) {
+ bus_unregister_notifier(&fsl_mc_bus_type, nb);
+ kfree(nb);
+ pr_err("restool driver registration failure\n");
+ return error;
+ }
+
+ return 0;
+
+free_nb:
+ kfree(nb);
+ return error;
+}
+
+module_init(fsl_mc_restool_driver_init);
+
+static void __exit fsl_mc_restool_driver_exit(void)
+{
+ struct restool_misc *restool_misc;
+ struct restool_misc *restool_misc_tmp;
+ char name1[20] = {0};
+ u32 name2 = 0;
+
+ list_for_each_entry_safe(restool_misc, restool_misc_tmp,
+ &misc_list, list) {
+ if (sscanf(restool_misc->misc.name, "%4s.%u", name1, &name2)
+ != 2)
+ continue;
+
+ pr_debug("name1=%s,name2=%u\n", name1, name2);
+ pr_debug("misc-device: %s\n", restool_misc->misc.name);
+ if (strcmp(name1, "dprc") != 0)
+ continue;
+
+ if (WARN_ON(!restool_misc->static_mc_io))
+ return;
+
+ if (WARN_ON(restool_misc->dynamic_instance_count != 0))
+ return;
+
+ if (WARN_ON(restool_misc->static_instance_in_use))
+ return;
+
+ misc_deregister(&restool_misc->misc);
+ pr_info("/dev/%s driver unregistered\n",
+ restool_misc->misc.name);
+ fsl_mc_portal_free(restool_misc->static_mc_io);
+ list_del(&restool_misc->list);
+ kfree(restool_misc);
+ }
+}
+
+module_exit(fsl_mc_restool_driver_exit);
+
+MODULE_AUTHOR("Freescale Semiconductor Inc.");
+MODULE_DESCRIPTION("Freescale's MC restool driver");
+MODULE_LICENSE("GPL");
--- a/drivers/staging/fsl-mc/bus/mc-sys.c
+++ b/drivers/staging/fsl-mc/bus/mc-sys.c
@@ -1,4 +1,5 @@
-/* Copyright 2013-2014 Freescale Semiconductor Inc.
+/*
+ * Copyright 2013-2016 Freescale Semiconductor Inc.
*
* I/O services to send MC commands to the MC hardware
*
@@ -13,7 +14,6 @@
* names of any contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
- *
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") as published by the Free Software
* Foundation, either version 2 of that License or (at your option) any
@@ -46,7 +46,7 @@
/**
* Timeout in milliseconds to wait for the completion of an MC command
*/
-#define MC_CMD_COMPLETION_TIMEOUT_MS 500
+#define MC_CMD_COMPLETION_TIMEOUT_MS 15000
/*
* usleep_range() min and max values used to throttle down polling
@@ -67,7 +67,7 @@ static u16 mc_cmd_hdr_read_cmdid(struct
struct mc_cmd_header *hdr = (struct mc_cmd_header *)&cmd->header;
u16 cmd_id = le16_to_cpu(hdr->cmd_id);
- return (cmd_id & MC_CMD_HDR_CMDID_MASK) >> MC_CMD_HDR_CMDID_SHIFT;
+ return cmd_id;
}
static int mc_status_to_error(enum mc_cmd_status status)
@@ -200,7 +200,7 @@ static int mc_polling_wait_preemptible(s
if (time_after_eq(jiffies, jiffies_until_timeout)) {
dev_dbg(mc_io->dev,
- "MC command timed out (portal: %#llx, obj handle: %#x, command: %#x)\n",
+ "MC command timed out (portal: %#llx, dprc handle: %#x, command: %#x)\n",
mc_io->portal_phys_addr,
(unsigned int)mc_cmd_hdr_read_token(cmd),
(unsigned int)mc_cmd_hdr_read_cmdid(cmd));
@@ -240,7 +240,7 @@ static int mc_polling_wait_atomic(struct
timeout_usecs -= MC_CMD_COMPLETION_POLLING_MAX_SLEEP_USECS;
if (timeout_usecs == 0) {
dev_dbg(mc_io->dev,
- "MC command timed out (portal: %#llx, obj handle: %#x, command: %#x)\n",
+ "MC command timed out (portal: %#llx, dprc handle: %#x, command: %#x)\n",
mc_io->portal_phys_addr,
(unsigned int)mc_cmd_hdr_read_token(cmd),
(unsigned int)mc_cmd_hdr_read_cmdid(cmd));
@@ -294,7 +294,7 @@ int mc_send_command(struct fsl_mc_io *mc
if (status != MC_CMD_STATUS_OK) {
dev_dbg(mc_io->dev,
- "MC command failed: portal: %#llx, obj handle: %#x, command: %#x, status: %s (%#x)\n",
+ "MC command failed: portal: %#llx, dprc handle: %#x, command: %#x, status: %s (%#x)\n",
mc_io->portal_phys_addr,
(unsigned int)mc_cmd_hdr_read_token(cmd),
(unsigned int)mc_cmd_hdr_read_cmdid(cmd),
--- /dev/null
+++ b/drivers/staging/fsl-mc/include/dpaa2-fd.h
@@ -0,0 +1,706 @@
+/*
+ * Copyright 2014-2016 Freescale Semiconductor Inc.
+ * Copyright 2016 NXP
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __FSL_DPAA2_FD_H
+#define __FSL_DPAA2_FD_H
+
+#include <linux/kernel.h>
+
+/**
+ * DOC: DPAA2 FD - Frame Descriptor APIs for DPAA2
+ *
+ * Frame Descriptors (FDs) are used to describe frame data in the DPAA2.
+ * Frames can be enqueued and dequeued to Frame Queues (FQs) which are consumed
+ * by the various DPAA accelerators (WRIOP, SEC, PME, DCE)
+ *
+ * There are three types of frames: single, scatter gather, and frame lists.
+ *
+ * The set of APIs in this file must be used to create, manipulate and
+ * query Frame Descriptors.
+ */
+
+/**
+ * struct dpaa2_fd - Struct describing FDs
+ * @words: for easier/faster copying the whole FD structure
+ * @addr: address in the FD
+ * @len: length in the FD
+ * @bpid: buffer pool ID
+ * @format_offset: format, offset, and short-length fields
+ * @frc: frame context
+ * @ctrl: control bits...including dd, sc, va, err, etc
+ * @flc: flow context address
+ *
+ * This structure represents the basic Frame Descriptor used in the system.
+ */
+struct dpaa2_fd {
+ union {
+ u32 words[8];
+ struct dpaa2_fd_simple {
+ __le64 addr;
+ __le32 len;
+ __le16 bpid;
+ __le16 format_offset;
+ __le32 frc;
+ __le32 ctrl;
+ __le64 flc;
+ } simple;
+ };
+};
+
+#define FD_SHORT_LEN_FLAG_MASK 0x1
+#define FD_SHORT_LEN_FLAG_SHIFT 14
+#define FD_SHORT_LEN_MASK 0x3FFFF
+#define FD_OFFSET_MASK 0x0FFF
+#define FD_FORMAT_MASK 0x3
+#define FD_FORMAT_SHIFT 12
+#define FD_BPID_MASK 0x3FFF
+#define SG_SHORT_LEN_FLAG_MASK 0x1
+#define SG_SHORT_LEN_FLAG_SHIFT 14
+#define SG_SHORT_LEN_MASK 0x1FFFF
+#define SG_OFFSET_MASK 0x0FFF
+#define SG_FORMAT_MASK 0x3
+#define SG_FORMAT_SHIFT 12
+#define SG_BPID_MASK 0x3FFF
+#define SG_FINAL_FLAG_MASK 0x1
+#define SG_FINAL_FLAG_SHIFT 15
+#define FL_SHORT_LEN_FLAG_MASK 0x1
+#define FL_SHORT_LEN_FLAG_SHIFT 14
+#define FL_SHORT_LEN_MASK 0x3FFFF
+#define FL_OFFSET_MASK 0x0FFF
+#define FL_FORMAT_MASK 0x3
+#define FL_FORMAT_SHIFT 12
+#define FL_BPID_MASK 0x3FFF
+#define FL_FINAL_FLAG_MASK 0x1
+#define FL_FINAL_FLAG_SHIFT 15
+
+/* Error bits in FD CTRL */
+#define FD_CTRL_ERR_MASK 0x000000FF
+#define FD_CTRL_UFD 0x00000004
+#define FD_CTRL_SBE 0x00000008
+#define FD_CTRL_FLC 0x00000010
+#define FD_CTRL_FSE 0x00000020
+#define FD_CTRL_FAERR 0x00000040
+
+/* Annotation bits in FD CTRL */
+#define FD_CTRL_PTA 0x00800000
+#define FD_CTRL_PTV1 0x00400000
+
+enum dpaa2_fd_format {
+ dpaa2_fd_single = 0,
+ dpaa2_fd_list,
+ dpaa2_fd_sg
+};
+
+/**
+ * dpaa2_fd_get_addr() - get the addr field of frame descriptor
+ * @fd: the given frame descriptor
+ *
+ * Return the address in the frame descriptor.
+ */
+static inline dma_addr_t dpaa2_fd_get_addr(const struct dpaa2_fd *fd)
+{
+ return (dma_addr_t)le64_to_cpu(fd->simple.addr);
+}
+
+/**
+ * dpaa2_fd_set_addr() - Set the addr field of frame descriptor
+ * @fd: the given frame descriptor
+ * @addr: the address needs to be set in frame descriptor
+ */
+static inline void dpaa2_fd_set_addr(struct dpaa2_fd *fd, dma_addr_t addr)
+{
+ fd->simple.addr = cpu_to_le64(addr);
+}
+
+/**
+ * dpaa2_fd_get_frc() - Get the frame context in the frame descriptor
+ * @fd: the given frame descriptor
+ *
+ * Return the frame context field in the frame descriptor.
+ */
+static inline u32 dpaa2_fd_get_frc(const struct dpaa2_fd *fd)
+{
+ return le32_to_cpu(fd->simple.frc);
+}
+
+/**
+ * dpaa2_fd_set_frc() - Set the frame context in the frame descriptor
+ * @fd: the given frame descriptor
+ * @frc: the frame context needs to be set in frame descriptor
+ */
+static inline void dpaa2_fd_set_frc(struct dpaa2_fd *fd, u32 frc)
+{
+ fd->simple.frc = cpu_to_le32(frc);
+}
+
+/**
+ * dpaa2_fd_get_ctrl() - Get the control bits in the frame descriptor
+ * @fd: the given frame descriptor
+ *
+ * Return the control bits field in the frame descriptor.
+ */
+static inline u32 dpaa2_fd_get_ctrl(const struct dpaa2_fd *fd)
+{
+ return le32_to_cpu(fd->simple.ctrl);
+}
+
+/**
+ * dpaa2_fd_set_ctrl() - Set the control bits in the frame descriptor
+ * @fd: the given frame descriptor
+ * @ctrl: the control bits to be set in the frame descriptor
+ */
+static inline void dpaa2_fd_set_ctrl(struct dpaa2_fd *fd, u32 ctrl)
+{
+ fd->simple.ctrl = cpu_to_le32(ctrl);
+}
+
+/**
+ * dpaa2_fd_get_flc() - Get the flow context in the frame descriptor
+ * @fd: the given frame descriptor
+ *
+ * Return the flow context in the frame descriptor.
+ */
+static inline dma_addr_t dpaa2_fd_get_flc(const struct dpaa2_fd *fd)
+{
+ return (dma_addr_t)le64_to_cpu(fd->simple.flc);
+}
+
+/**
+ * dpaa2_fd_set_flc() - Set the flow context field of frame descriptor
+ * @fd: the given frame descriptor
+ * @flc_addr: the flow context needs to be set in frame descriptor
+ */
+static inline void dpaa2_fd_set_flc(struct dpaa2_fd *fd, dma_addr_t flc_addr)
+{
+ fd->simple.flc = cpu_to_le64(flc_addr);
+}
+
+static inline bool dpaa2_fd_short_len(const struct dpaa2_fd *fd)
+{
+ return !!((le16_to_cpu(fd->simple.format_offset) >>
+ FD_SHORT_LEN_FLAG_SHIFT) & FD_SHORT_LEN_FLAG_MASK);
+}
+
+/**
+ * dpaa2_fd_get_len() - Get the length in the frame descriptor
+ * @fd: the given frame descriptor
+ *
+ * Return the length field in the frame descriptor.
+ */
+static inline u32 dpaa2_fd_get_len(const struct dpaa2_fd *fd)
+{
+ if (dpaa2_fd_short_len(fd))
+ return le32_to_cpu(fd->simple.len) & FD_SHORT_LEN_MASK;
+
+ return le32_to_cpu(fd->simple.len);
+}
+
+/**
+ * dpaa2_fd_set_len() - Set the length field of frame descriptor
+ * @fd: the given frame descriptor
+ * @len: the length needs to be set in frame descriptor
+ */
+static inline void dpaa2_fd_set_len(struct dpaa2_fd *fd, u32 len)
+{
+ fd->simple.len = cpu_to_le32(len);
+}
+
+/**
+ * dpaa2_fd_get_offset() - Get the offset field in the frame descriptor
+ * @fd: the given frame descriptor
+ *
+ * Return the offset.
+ */
+static inline uint16_t dpaa2_fd_get_offset(const struct dpaa2_fd *fd)
+{
+ return le16_to_cpu(fd->simple.format_offset) & FD_OFFSET_MASK;
+}
+
+/**
+ * dpaa2_fd_set_offset() - Set the offset field of frame descriptor
+ * @fd: the given frame descriptor
+ * @offset: the offset needs to be set in frame descriptor
+ */
+static inline void dpaa2_fd_set_offset(struct dpaa2_fd *fd, uint16_t offset)
+{
+ fd->simple.format_offset &= cpu_to_le16(~FD_OFFSET_MASK);
+ fd->simple.format_offset |= cpu_to_le16(offset);
+}
+
+/**
+ * dpaa2_fd_get_format() - Get the format field in the frame descriptor
+ * @fd: the given frame descriptor
+ *
+ * Return the format.
+ */
+static inline enum dpaa2_fd_format dpaa2_fd_get_format(
+ const struct dpaa2_fd *fd)
+{
+ return (enum dpaa2_fd_format)((le16_to_cpu(fd->simple.format_offset)
+ >> FD_FORMAT_SHIFT) & FD_FORMAT_MASK);
+}
+
+/**
+ * dpaa2_fd_set_format() - Set the format field of frame descriptor
+ * @fd: the given frame descriptor
+ * @format: the format needs to be set in frame descriptor
+ */
+static inline void dpaa2_fd_set_format(struct dpaa2_fd *fd,
+ enum dpaa2_fd_format format)
+{
+ fd->simple.format_offset &=
+ cpu_to_le16(~(FD_FORMAT_MASK << FD_FORMAT_SHIFT));
+ fd->simple.format_offset |= cpu_to_le16(format << FD_FORMAT_SHIFT);
+}
+
+/**
+ * dpaa2_fd_get_bpid() - Get the bpid field in the frame descriptor
+ * @fd: the given frame descriptor
+ *
+ * Return the buffer pool id.
+ */
+static inline uint16_t dpaa2_fd_get_bpid(const struct dpaa2_fd *fd)
+{
+ return le16_to_cpu(fd->simple.bpid) & FD_BPID_MASK;
+}
+
+/**
+ * dpaa2_fd_set_bpid() - Set the bpid field of frame descriptor
+ * @fd: the given frame descriptor
+ * @bpid: buffer pool id to be set
+ */
+static inline void dpaa2_fd_set_bpid(struct dpaa2_fd *fd, uint16_t bpid)
+{
+ fd->simple.bpid &= cpu_to_le16(~(FD_BPID_MASK));
+ fd->simple.bpid |= cpu_to_le16(bpid);
+}
+
+/**
+ * struct dpaa2_sg_entry - the scatter-gathering structure
+ * @addr: address of the sg entry
+ * @len: length in this sg entry
+ * @bpid: buffer pool id
+ * @format_offset: format and offset fields
+ */
+struct dpaa2_sg_entry {
+ __le64 addr;
+ __le32 len;
+ __le16 bpid;
+ __le16 format_offset;
+};
+
+enum dpaa2_sg_format {
+ dpaa2_sg_single = 0,
+ dpaa2_sg_frame_data,
+ dpaa2_sg_sgt_ext
+};
+
+/* Accessors for SG entry fields */
+
+/**
+ * dpaa2_sg_get_addr() - Get the address from SG entry
+ * @sg: the given scatter-gathering object
+ *
+ * Return the address.
+ */
+static inline dma_addr_t dpaa2_sg_get_addr(const struct dpaa2_sg_entry *sg)
+{
+ return le64_to_cpu((dma_addr_t)sg->addr);
+}
+
+/**
+ * dpaa2_sg_set_addr() - Set the address in SG entry
+ * @sg: the given scatter-gathering object
+ * @addr: the address to be set
+ */
+static inline void dpaa2_sg_set_addr(struct dpaa2_sg_entry *sg, dma_addr_t addr)
+{
+ sg->addr = cpu_to_le64(addr);
+}
+
+static inline bool dpaa2_sg_short_len(const struct dpaa2_sg_entry *sg)
+{
+ return !!((le16_to_cpu(sg->format_offset) >> SG_SHORT_LEN_FLAG_SHIFT)
+ & SG_SHORT_LEN_FLAG_MASK);
+}
+
+/**
+ * dpaa2_sg_get_len() - Get the length in SG entry
+ * @sg: the given scatter-gathering object
+ *
+ * Return the length.
+ */
+static inline u32 dpaa2_sg_get_len(const struct dpaa2_sg_entry *sg)
+{
+ if (dpaa2_sg_short_len(sg))
+ return le32_to_cpu(sg->len) & SG_SHORT_LEN_MASK;
+
+ return le32_to_cpu(sg->len);
+}
+
+/**
+ * dpaa2_sg_set_len() - Set the length in SG entry
+ * @sg: the given scatter-gathering object
+ * @len: the length to be set
+ */
+static inline void dpaa2_sg_set_len(struct dpaa2_sg_entry *sg, u32 len)
+{
+ sg->len = cpu_to_le32(len);
+}
+
+/**
+ * dpaa2_sg_get_offset() - Get the offset in SG entry
+ * @sg: the given scatter-gathering object
+ *
+ * Return the offset.
+ */
+static inline u16 dpaa2_sg_get_offset(const struct dpaa2_sg_entry *sg)
+{
+ return le16_to_cpu(sg->format_offset) & SG_OFFSET_MASK;
+}
+
+/**
+ * dpaa2_sg_set_offset() - Set the offset in SG entry
+ * @sg: the given scatter-gathering object
+ * @offset: the offset to be set
+ */
+static inline void dpaa2_sg_set_offset(struct dpaa2_sg_entry *sg,
+ u16 offset)
+{
+ sg->format_offset &= cpu_to_le16(~SG_OFFSET_MASK);
+ sg->format_offset |= cpu_to_le16(offset);
+}
+
+/**
+ * dpaa2_sg_get_format() - Get the SG format in SG entry
+ * @sg: the given scatter-gathering object
+ *
+ * Return the format.
+ */
+static inline enum dpaa2_sg_format
+ dpaa2_sg_get_format(const struct dpaa2_sg_entry *sg)
+{
+ return (enum dpaa2_sg_format)((le16_to_cpu(sg->format_offset)
+ >> SG_FORMAT_SHIFT) & SG_FORMAT_MASK);
+}
+
+/**
+ * dpaa2_sg_set_format() - Set the SG format in SG entry
+ * @sg: the given scatter-gathering object
+ * @format: the format to be set
+ */
+static inline void dpaa2_sg_set_format(struct dpaa2_sg_entry *sg,
+ enum dpaa2_sg_format format)
+{
+ sg->format_offset &= cpu_to_le16(~(SG_FORMAT_MASK << SG_FORMAT_SHIFT));
+ sg->format_offset |= cpu_to_le16(format << SG_FORMAT_SHIFT);
+}
+
+/**
+ * dpaa2_sg_get_bpid() - Get the buffer pool id in SG entry
+ * @sg: the given scatter-gathering object
+ *
+ * Return the bpid.
+ */
+static inline u16 dpaa2_sg_get_bpid(const struct dpaa2_sg_entry *sg)
+{
+ return le16_to_cpu(sg->bpid) & SG_BPID_MASK;
+}
+
+/**
+ * dpaa2_sg_set_bpid() - Set the buffer pool id in SG entry
+ * @sg: the given scatter-gathering object
+ * @bpid: the bpid to be set
+ */
+static inline void dpaa2_sg_set_bpid(struct dpaa2_sg_entry *sg, u16 bpid)
+{
+ sg->bpid &= cpu_to_le16(~(SG_BPID_MASK));
+ sg->bpid |= cpu_to_le16(bpid);
+}
+
+/**
+ * dpaa2_sg_is_final() - Check final bit in SG entry
+ * @sg: the given scatter-gathering object
+ *
+ * Return bool.
+ */
+static inline bool dpaa2_sg_is_final(const struct dpaa2_sg_entry *sg)
+{
+ return !!(le16_to_cpu(sg->format_offset) >> SG_FINAL_FLAG_SHIFT);
+}
+
+/**
+ * dpaa2_sg_set_final() - Set the final bit in SG entry
+ * @sg: the given scatter-gathering object
+ * @final: the final boolean to be set
+ */
+static inline void dpaa2_sg_set_final(struct dpaa2_sg_entry *sg, bool final)
+{
+ sg->format_offset &= cpu_to_le16(~(SG_FINAL_FLAG_MASK
+ << SG_FINAL_FLAG_SHIFT));
+ sg->format_offset |= cpu_to_le16(final << SG_FINAL_FLAG_SHIFT);
+}
+
+/**
+ * struct dpaa2_fl_entry - structure for frame list entry.
+ * @addr: address in the FLE
+ * @len: length in the FLE
+ * @bpid: buffer pool ID
+ * @format_offset: format, offset, and short-length fields
+ * @frc: frame context
+ * @ctrl: control bits...including pta, pvt1, pvt2, err, etc
+ * @flc: flow context address
+ */
+struct dpaa2_fl_entry {
+ __le64 addr;
+ __le32 len;
+ __le16 bpid;
+ __le16 format_offset;
+ __le32 frc;
+ __le32 ctrl;
+ __le64 flc;
+};
+
+enum dpaa2_fl_format {
+ dpaa2_fl_single = 0,
+ dpaa2_fl_res,
+ dpaa2_fl_sg
+};
+
+/**
+ * dpaa2_fl_get_addr() - get the addr field of FLE
+ * @fle: the given frame list entry
+ *
+ * Return the address in the frame list entry.
+ */
+static inline dma_addr_t dpaa2_fl_get_addr(const struct dpaa2_fl_entry *fle)
+{
+ return (dma_addr_t)le64_to_cpu(fle->addr);
+}
+
+/**
+ * dpaa2_fl_set_addr() - Set the addr field of FLE
+ * @fle: the given frame list entry
+ * @addr: the address needs to be set in frame list entry
+ */
+static inline void dpaa2_fl_set_addr(struct dpaa2_fl_entry *fle,
+ dma_addr_t addr)
+{
+ fle->addr = cpu_to_le64(addr);
+}
+
+/**
+ * dpaa2_fl_get_frc() - Get the frame context in the FLE
+ * @fle: the given frame list entry
+ *
+ * Return the frame context field in the frame lsit entry.
+ */
+static inline u32 dpaa2_fl_get_frc(const struct dpaa2_fl_entry *fle)
+{
+ return le32_to_cpu(fle->frc);
+}
+
+/**
+ * dpaa2_fl_set_frc() - Set the frame context in the FLE
+ * @fle: the given frame list entry
+ * @frc: the frame context needs to be set in frame list entry
+ */
+static inline void dpaa2_fl_set_frc(struct dpaa2_fl_entry *fle, u32 frc)
+{
+ fle->frc = cpu_to_le32(frc);
+}
+
+/**
+ * dpaa2_fl_get_ctrl() - Get the control bits in the FLE
+ * @fle: the given frame list entry
+ *
+ * Return the control bits field in the frame list entry.
+ */
+static inline u32 dpaa2_fl_get_ctrl(const struct dpaa2_fl_entry *fle)
+{
+ return le32_to_cpu(fle->ctrl);
+}
+
+/**
+ * dpaa2_fl_set_ctrl() - Set the control bits in the FLE
+ * @fle: the given frame list entry
+ * @ctrl: the control bits to be set in the frame list entry
+ */
+static inline void dpaa2_fl_set_ctrl(struct dpaa2_fl_entry *fle, u32 ctrl)
+{
+ fle->ctrl = cpu_to_le32(ctrl);
+}
+
+/**
+ * dpaa2_fl_get_flc() - Get the flow context in the FLE
+ * @fle: the given frame list entry
+ *
+ * Return the flow context in the frame list entry.
+ */
+static inline dma_addr_t dpaa2_fl_get_flc(const struct dpaa2_fl_entry *fle)
+{
+ return (dma_addr_t)le64_to_cpu(fle->flc);
+}
+
+/**
+ * dpaa2_fl_set_flc() - Set the flow context field of FLE
+ * @fle: the given frame list entry
+ * @flc_addr: the flow context needs to be set in frame list entry
+ */
+static inline void dpaa2_fl_set_flc(struct dpaa2_fl_entry *fle,
+ dma_addr_t flc_addr)
+{
+ fle->flc = cpu_to_le64(flc_addr);
+}
+
+static inline bool dpaa2_fl_short_len(const struct dpaa2_fl_entry *fle)
+{
+ return !!((le16_to_cpu(fle->format_offset) >>
+ FL_SHORT_LEN_FLAG_SHIFT) & FL_SHORT_LEN_FLAG_MASK);
+}
+
+/**
+ * dpaa2_fl_get_len() - Get the length in the FLE
+ * @fle: the given frame list entry
+ *
+ * Return the length field in the frame list entry.
+ */
+static inline u32 dpaa2_fl_get_len(const struct dpaa2_fl_entry *fle)
+{
+ if (dpaa2_fl_short_len(fle))
+ return le32_to_cpu(fle->len) & FL_SHORT_LEN_MASK;
+
+ return le32_to_cpu(fle->len);
+}
+
+/**
+ * dpaa2_fl_set_len() - Set the length field of FLE
+ * @fle: the given frame list entry
+ * @len: the length needs to be set in frame list entry
+ */
+static inline void dpaa2_fl_set_len(struct dpaa2_fl_entry *fle, u32 len)
+{
+ fle->len = cpu_to_le32(len);
+}
+
+/**
+ * dpaa2_fl_get_offset() - Get the offset field in the frame list entry
+ * @fle: the given frame list entry
+ *
+ * Return the offset.
+ */
+static inline u16 dpaa2_fl_get_offset(const struct dpaa2_fl_entry *fle)
+{
+ return le16_to_cpu(fle->format_offset) & FL_OFFSET_MASK;
+}
+
+/**
+ * dpaa2_fl_set_offset() - Set the offset field of FLE
+ * @fle: the given frame list entry
+ * @offset: the offset needs to be set in frame list entry
+ */
+static inline void dpaa2_fl_set_offset(struct dpaa2_fl_entry *fle, u16 offset)
+{
+ fle->format_offset &= cpu_to_le16(~FL_OFFSET_MASK);
+ fle->format_offset |= cpu_to_le16(offset);
+}
+
+/**
+ * dpaa2_fl_get_format() - Get the format field in the FLE
+ * @fle: the given frame list entry
+ *
+ * Return the format.
+ */
+static inline enum dpaa2_fl_format dpaa2_fl_get_format(
+ const struct dpaa2_fl_entry *fle)
+{
+ return (enum dpaa2_fl_format)((le16_to_cpu(fle->format_offset) >>
+ FL_FORMAT_SHIFT) & FL_FORMAT_MASK);
+}
+
+/**
+ * dpaa2_fl_set_format() - Set the format field of FLE
+ * @fle: the given frame list entry
+ * @format: the format needs to be set in frame list entry
+ */
+static inline void dpaa2_fl_set_format(struct dpaa2_fl_entry *fle,
+ enum dpaa2_fl_format format)
+{
+ fle->format_offset &= cpu_to_le16(~(FL_FORMAT_MASK << FL_FORMAT_SHIFT));
+ fle->format_offset |= cpu_to_le16(format << FL_FORMAT_SHIFT);
+}
+
+/**
+ * dpaa2_fl_get_bpid() - Get the bpid field in the FLE
+ * @fle: the given frame list entry
+ *
+ * Return the buffer pool id.
+ */
+static inline u16 dpaa2_fl_get_bpid(const struct dpaa2_fl_entry *fle)
+{
+ return le16_to_cpu(fle->bpid) & FL_BPID_MASK;
+}
+
+/**
+ * dpaa2_fl_set_bpid() - Set the bpid field of FLE
+ * @fle: the given frame list entry
+ * @bpid: buffer pool id to be set
+ */
+static inline void dpaa2_fl_set_bpid(struct dpaa2_fl_entry *fle, u16 bpid)
+{
+ fle->bpid &= cpu_to_le16(~(FL_BPID_MASK));
+ fle->bpid |= cpu_to_le16(bpid);
+}
+
+/**
+ * dpaa2_fl_is_final() - Check final bit in FLE
+ * @fle: the given frame list entry
+ *
+ * Return bool.
+ */
+static inline bool dpaa2_fl_is_final(const struct dpaa2_fl_entry *fle)
+{
+ return !!(le16_to_cpu(fle->format_offset) >> FL_FINAL_FLAG_SHIFT);
+}
+
+/**
+ * dpaa2_fl_set_final() - Set the final bit in FLE
+ * @fle: the given frame list entry
+ * @final: the final boolean to be set
+ */
+static inline void dpaa2_fl_set_final(struct dpaa2_fl_entry *fle, bool final)
+{
+ fle->format_offset &= cpu_to_le16(~(FL_FINAL_FLAG_MASK <<
+ FL_FINAL_FLAG_SHIFT));
+ fle->format_offset |= cpu_to_le16(final << FL_FINAL_FLAG_SHIFT);
+}
+
+#endif /* __FSL_DPAA2_FD_H */
--- /dev/null
+++ b/drivers/staging/fsl-mc/include/dpaa2-global.h
@@ -0,0 +1,202 @@
+/*
+ * Copyright 2014-2016 Freescale Semiconductor Inc.
+ * Copyright 2016 NXP
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __FSL_DPAA2_GLOBAL_H
+#define __FSL_DPAA2_GLOBAL_H
+
+#include <linux/types.h>
+#include <linux/cpumask.h>
+#include "dpaa2-fd.h"
+
+struct dpaa2_dq {
+ union {
+ struct common {
+ u8 verb;
+ u8 reserved[63];
+ } common;
+ struct dq {
+ u8 verb;
+ u8 stat;
+ __le16 seqnum;
+ __le16 oprid;
+ u8 reserved;
+ u8 tok;
+ __le32 fqid;
+ u32 reserved2;
+ __le32 fq_byte_cnt;
+ __le32 fq_frm_cnt;
+ __le64 fqd_ctx;
+ u8 fd[32];
+ } dq;
+ struct scn {
+ u8 verb;
+ u8 stat;
+ u8 state;
+ u8 reserved;
+ __le32 rid_tok;
+ __le64 ctx;
+ } scn;
+ };
+};
+
+/* Parsing frame dequeue results */
+/* FQ empty */
+#define DPAA2_DQ_STAT_FQEMPTY 0x80
+/* FQ held active */
+#define DPAA2_DQ_STAT_HELDACTIVE 0x40
+/* FQ force eligible */
+#define DPAA2_DQ_STAT_FORCEELIGIBLE 0x20
+/* valid frame */
+#define DPAA2_DQ_STAT_VALIDFRAME 0x10
+/* FQ ODP enable */
+#define DPAA2_DQ_STAT_ODPVALID 0x04
+/* volatile dequeue */
+#define DPAA2_DQ_STAT_VOLATILE 0x02
+/* volatile dequeue command is expired */
+#define DPAA2_DQ_STAT_EXPIRED 0x01
+
+#define DQ_FQID_MASK 0x00FFFFFF
+#define DQ_FRAME_COUNT_MASK 0x00FFFFFF
+
+/**
+ * dpaa2_dq_flags() - Get the stat field of dequeue response
+ * @dq: the dequeue result.
+ */
+static inline u32 dpaa2_dq_flags(const struct dpaa2_dq *dq)
+{
+ return dq->dq.stat;
+}
+
+/**
+ * dpaa2_dq_is_pull() - Check whether the dq response is from a pull
+ * command.
+ * @dq: the dequeue result
+ *
+ * Return 1 for volatile(pull) dequeue, 0 for static dequeue.
+ */
+static inline int dpaa2_dq_is_pull(const struct dpaa2_dq *dq)
+{
+ return (int)(dpaa2_dq_flags(dq) & DPAA2_DQ_STAT_VOLATILE);
+}
+
+/**
+ * dpaa2_dq_is_pull_complete() - Check whether the pull command is completed.
+ * @dq: the dequeue result
+ *
+ * Return boolean.
+ */
+static inline bool dpaa2_dq_is_pull_complete(const struct dpaa2_dq *dq)
+{
+ return !!(dpaa2_dq_flags(dq) & DPAA2_DQ_STAT_EXPIRED);
+}
+
+/**
+ * dpaa2_dq_seqnum() - Get the seqnum field in dequeue response
+ * @dq: the dequeue result
+ *
+ * seqnum is valid only if VALIDFRAME flag is TRUE
+ *
+ * Return seqnum.
+ */
+static inline u16 dpaa2_dq_seqnum(const struct dpaa2_dq *dq)
+{
+ return le16_to_cpu(dq->dq.seqnum);
+}
+
+/**
+ * dpaa2_dq_odpid() - Get the odpid field in dequeue response
+ * @dq: the dequeue result
+ *
+ * odpid is valid only if ODPVALID flag is TRUE.
+ *
+ * Return odpid.
+ */
+static inline u16 dpaa2_dq_odpid(const struct dpaa2_dq *dq)
+{
+ return le16_to_cpu(dq->dq.oprid);
+}
+
+/**
+ * dpaa2_dq_fqid() - Get the fqid in dequeue response
+ * @dq: the dequeue result
+ *
+ * Return fqid.
+ */
+static inline u32 dpaa2_dq_fqid(const struct dpaa2_dq *dq)
+{
+ return le32_to_cpu(dq->dq.fqid) & DQ_FQID_MASK;
+}
+
+/**
+ * dpaa2_dq_byte_count() - Get the byte count in dequeue response
+ * @dq: the dequeue result
+ *
+ * Return the byte count remaining in the FQ.
+ */
+static inline u32 dpaa2_dq_byte_count(const struct dpaa2_dq *dq)
+{
+ return le32_to_cpu(dq->dq.fq_byte_cnt);
+}
+
+/**
+ * dpaa2_dq_frame_count() - Get the frame count in dequeue response
+ * @dq: the dequeue result
+ *
+ * Return the frame count remaining in the FQ.
+ */
+static inline u32 dpaa2_dq_frame_count(const struct dpaa2_dq *dq)
+{
+ return le32_to_cpu(dq->dq.fq_frm_cnt) & DQ_FRAME_COUNT_MASK;
+}
+
+/**
+ * dpaa2_dq_fd_ctx() - Get the frame queue context in dequeue response
+ * @dq: the dequeue result
+ *
+ * Return the frame queue context.
+ */
+static inline u64 dpaa2_dq_fqd_ctx(const struct dpaa2_dq *dq)
+{
+ return le64_to_cpu(dq->dq.fqd_ctx);
+}
+
+/**
+ * dpaa2_dq_fd() - Get the frame descriptor in dequeue response
+ * @dq: the dequeue result
+ *
+ * Return the frame descriptor.
+ */
+static inline const struct dpaa2_fd *dpaa2_dq_fd(const struct dpaa2_dq *dq)
+{
+ return (const struct dpaa2_fd *)&dq->dq.fd[0];
+}
+
+#endif /* __FSL_DPAA2_GLOBAL_H */
--- /dev/null
+++ b/drivers/staging/fsl-mc/include/dpaa2-io.h
@@ -0,0 +1,190 @@
+/*
+ * Copyright 2014-2016 Freescale Semiconductor Inc.
+ * Copyright 2017 NXP
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of Freescale Semiconductor nor the
+ * names of its contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __FSL_DPAA2_IO_H
+#define __FSL_DPAA2_IO_H
+
+#include <linux/types.h>
+#include <linux/cpumask.h>
+
+#include "dpaa2-fd.h"
+#include "dpaa2-global.h"
+
+struct dpaa2_io;
+struct dpaa2_io_store;
+struct device;
+
+/**
+ * DOC: DPIO Service
+ *
+ * The DPIO service provides APIs for users to interact with the datapath
+ * by enqueueing and dequeing frame descriptors.
+ *
+ * The following set of APIs can be used to enqueue and dequeue frames
+ * as well as producing notification callbacks when data is available
+ * for dequeue.
+ */
+
+/**
+ * struct dpaa2_io_desc - The DPIO descriptor
+ * @receives_notifications: Use notificaton mode. Non-zero if the DPIO
+ * has a channel.
+ * @has_8prio: Set to non-zero for channel with 8 priority WQs. Ignored
+ * unless receives_notification is TRUE.
+ * @cpu: The cpu index that at least interrupt handlers will
+ * execute on.
+ * @stash_affinity: The stash affinity for this portal favour 'cpu'
+ * @regs_cena: The cache enabled regs.
+ * @regs_cinh: The cache inhibited regs
+ * @dpio_id: The dpio index
+ * @qman_version: The qman version
+ *
+ * Describes the attributes and features of the DPIO object.
+ */
+struct dpaa2_io_desc {
+ int receives_notifications;
+ int has_8prio;
+ int cpu;
+ void *regs_cena;
+ void *regs_cinh;
+ int dpio_id;
+ u32 qman_version;
+};
+
+struct dpaa2_io *dpaa2_io_create(const struct dpaa2_io_desc *desc);
+
+void dpaa2_io_down(struct dpaa2_io *d);
+
+irqreturn_t dpaa2_io_irq(struct dpaa2_io *obj);
+
+/**
+ * struct dpaa2_io_notification_ctx - The DPIO notification context structure
+ * @cb: The callback to be invoked when the notification arrives
+ * @is_cdan: Zero for FQDAN, non-zero for CDAN
+ * @id: FQID or channel ID, needed for rearm
+ * @desired_cpu: The cpu on which the notifications will show up. -1 means
+ * any CPU.
+ * @dpio_id: The dpio index
+ * @qman64: The 64-bit context value shows up in the FQDAN/CDAN.
+ * @node: The list node
+ * @dpio_private: The dpio object internal to dpio_service
+ *
+ * Used when a FQDAN/CDAN registration is made by drivers.
+ */
+struct dpaa2_io_notification_ctx {
+ void (*cb)(struct dpaa2_io_notification_ctx *);
+ int is_cdan;
+ u32 id;
+ int desired_cpu;
+ int dpio_id;
+ u64 qman64;
+ struct list_head node;
+ void *dpio_private;
+};
+
+int dpaa2_io_service_register(struct dpaa2_io *service,
+ struct dpaa2_io_notification_ctx *ctx);
+void dpaa2_io_service_deregister(struct dpaa2_io *service,
+ struct dpaa2_io_notification_ctx *ctx);
+int dpaa2_io_service_rearm(struct dpaa2_io *service,
+ struct dpaa2_io_notification_ctx *ctx);
+
+int dpaa2_io_service_pull_fq(struct dpaa2_io *d, u32 fqid,
+ struct dpaa2_io_store *s);
+int dpaa2_io_service_pull_channel(struct dpaa2_io *d, u32 channelid,
+ struct dpaa2_io_store *s);
+
+int dpaa2_io_service_enqueue_fq(struct dpaa2_io *d, u32 fqid,
+ const struct dpaa2_fd *fd);
+int dpaa2_io_service_enqueue_qd(struct dpaa2_io *d, u32 qdid, u8 prio,
+ u16 qdbin, const struct dpaa2_fd *fd);
+int dpaa2_io_service_release(struct dpaa2_io *d, u32 bpid,
+ const u64 *buffers, unsigned int num_buffers);
+int dpaa2_io_service_acquire(struct dpaa2_io *d, u32 bpid,
+ u64 *buffers, unsigned int num_buffers);
+
+struct dpaa2_io_store *dpaa2_io_store_create(unsigned int max_frames,
+ struct device *dev);
+void dpaa2_io_store_destroy(struct dpaa2_io_store *s);
+struct dpaa2_dq *dpaa2_io_store_next(struct dpaa2_io_store *s, int *is_last);
+
+#ifdef CONFIG_FSL_QBMAN_DEBUG
+int dpaa2_io_query_fq_count(struct dpaa2_io *d, uint32_t fqid,
+ uint32_t *fcnt, uint32_t *bcnt);
+int dpaa2_io_query_bp_count(struct dpaa2_io *d, uint32_t bpid,
+ uint32_t *num);
+#endif
+
+
+/***************/
+/* CSCN */
+/***************/
+
+/**
+ * struct dpaa2_cscn - The CSCN message format
+ * @verb: identifies the type of message (should be 0x27).
+ * @stat: status bits related to dequeuing response (not used)
+ * @state: bit 0 = 0/1 if CG is no/is congested
+ * @reserved: reserved byte
+ * @cgid: congest grp ID - the first 16 bits
+ * @ctx: context data
+ *
+ * Congestion management can be implemented in software through
+ * the use of Congestion State Change Notifications (CSCN). These
+ * are messages written by DPAA2 hardware to memory whenever the
+ * instantaneous count (I_CNT field in the CG) exceeds the
+ * Congestion State (CS) entrance threshold, signifying congestion
+ * entrance, or when the instantaneous count returns below exit
+ * threshold, signifying congestion exit. The format of the message
+ * is given by the dpaa2_cscn structure. Bit 0 of the state field
+ * represents congestion state written by the hardware.
+ */
+struct dpaa2_cscn {
+ u8 verb;
+ u8 stat;
+ u8 state;
+ u8 reserved;
+ __le32 cgid;
+ __le64 ctx;
+};
+
+#define DPAA2_CSCN_SIZE 64
+#define DPAA2_CSCN_ALIGN 16
+
+#define DPAA2_CSCN_STATE_MASK 0x1
+#define DPAA2_CSCN_CONGESTED 1
+
+static inline bool dpaa2_cscn_state_congested(struct dpaa2_cscn *cscn)
+{
+ return ((cscn->state & DPAA2_CSCN_STATE_MASK) == DPAA2_CSCN_CONGESTED);
+}
+
+#endif /* __FSL_DPAA2_IO_H */
--- a/drivers/staging/fsl-mc/include/dpbp-cmd.h
+++ /dev/null
@@ -1,185 +0,0 @@
-/* Copyright 2013-2016 Freescale Semiconductor Inc.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are met:
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in the
- * documentation and/or other materials provided with the distribution.
- * * Neither the name of the above-listed copyright holders nor the
- * names of any contributors may be used to endorse or promote products
- * derived from this software without specific prior written permission.
- *
- *
- * ALTERNATIVELY, this software may be distributed under the terms of the
- * GNU General Public License ("GPL") as published by the Free Software
- * Foundation, either version 2 of that License or (at your option) any
- * later version.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
- * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
- * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
- * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
- * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
- * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
- * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
- * POSSIBILITY OF SUCH DAMAGE.
- */
-#ifndef _FSL_DPBP_CMD_H
-#define _FSL_DPBP_CMD_H
-
-/* DPBP Version */
-#define DPBP_VER_MAJOR 2
-#define DPBP_VER_MINOR 2
-
-/* Command IDs */
-#define DPBP_CMDID_CLOSE 0x800
-#define DPBP_CMDID_OPEN 0x804
-#define DPBP_CMDID_CREATE 0x904
-#define DPBP_CMDID_DESTROY 0x900
-
-#define DPBP_CMDID_ENABLE 0x002
-#define DPBP_CMDID_DISABLE 0x003
-#define DPBP_CMDID_GET_ATTR 0x004
-#define DPBP_CMDID_RESET 0x005
-#define DPBP_CMDID_IS_ENABLED 0x006
-
-#define DPBP_CMDID_SET_IRQ 0x010
-#define DPBP_CMDID_GET_IRQ 0x011
-#define DPBP_CMDID_SET_IRQ_ENABLE 0x012
-#define DPBP_CMDID_GET_IRQ_ENABLE 0x013
-#define DPBP_CMDID_SET_IRQ_MASK 0x014
-#define DPBP_CMDID_GET_IRQ_MASK 0x015
-#define DPBP_CMDID_GET_IRQ_STATUS 0x016
-#define DPBP_CMDID_CLEAR_IRQ_STATUS 0x017
-
-#define DPBP_CMDID_SET_NOTIFICATIONS 0x01b0
-#define DPBP_CMDID_GET_NOTIFICATIONS 0x01b1
-
-struct dpbp_cmd_open {
- __le32 dpbp_id;
-};
-
-#define DPBP_ENABLE 0x1
-
-struct dpbp_rsp_is_enabled {
- u8 enabled;
-};
-
-struct dpbp_cmd_set_irq {
- /* cmd word 0 */
- u8 irq_index;
- u8 pad[3];
- __le32 irq_val;
- /* cmd word 1 */
- __le64 irq_addr;
- /* cmd word 2 */
- __le32 irq_num;
-};
-
-struct dpbp_cmd_get_irq {
- __le32 pad;
- u8 irq_index;
-};
-
-struct dpbp_rsp_get_irq {
- /* response word 0 */
- __le32 irq_val;
- __le32 pad;
- /* response word 1 */
- __le64 irq_addr;
- /* response word 2 */
- __le32 irq_num;
- __le32 type;
-};
-
-struct dpbp_cmd_set_irq_enable {
- u8 enable;
- u8 pad[3];
- u8 irq_index;
-};
-
-struct dpbp_cmd_get_irq_enable {
- __le32 pad;
- u8 irq_index;
-};
-
-struct dpbp_rsp_get_irq_enable {
- u8 enabled;
-};
-
-struct dpbp_cmd_set_irq_mask {
- __le32 mask;
- u8 irq_index;
-};
-
-struct dpbp_cmd_get_irq_mask {
- __le32 pad;
- u8 irq_index;
-};
-
-struct dpbp_rsp_get_irq_mask {
- __le32 mask;
-};
-
-struct dpbp_cmd_get_irq_status {
- __le32 status;
- u8 irq_index;
-};
-
-struct dpbp_rsp_get_irq_status {
- __le32 status;
-};
-
-struct dpbp_cmd_clear_irq_status {
- __le32 status;
- u8 irq_index;
-};
-
-struct dpbp_rsp_get_attributes {
- /* response word 0 */
- __le16 pad;
- __le16 bpid;
- __le32 id;
- /* response word 1 */
- __le16 version_major;
- __le16 version_minor;
-};
-
-struct dpbp_cmd_set_notifications {
- /* cmd word 0 */
- __le32 depletion_entry;
- __le32 depletion_exit;
- /* cmd word 1 */
- __le32 surplus_entry;
- __le32 surplus_exit;
- /* cmd word 2 */
- __le16 options;
- __le16 pad[3];
- /* cmd word 3 */
- __le64 message_ctx;
- /* cmd word 4 */
- __le64 message_iova;
-};
-
-struct dpbp_rsp_get_notifications {
- /* response word 0 */
- __le32 depletion_entry;
- __le32 depletion_exit;
- /* response word 1 */
- __le32 surplus_entry;
- __le32 surplus_exit;
- /* response word 2 */
- __le16 options;
- __le16 pad[3];
- /* response word 3 */
- __le64 message_ctx;
- /* response word 4 */
- __le64 message_iova;
-};
-
-#endif /* _FSL_DPBP_CMD_H */
--- a/drivers/staging/fsl-mc/include/dpbp.h
+++ b/drivers/staging/fsl-mc/include/dpbp.h
@@ -1,4 +1,5 @@
-/* Copyright 2013-2015 Freescale Semiconductor Inc.
+/*
+ * Copyright 2013-2016 Freescale Semiconductor Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@@ -32,7 +33,8 @@
#ifndef __FSL_DPBP_H
#define __FSL_DPBP_H
-/* Data Path Buffer Pool API
+/*
+ * Data Path Buffer Pool API
* Contains initialization APIs and runtime control APIs for DPBP
*/
@@ -44,25 +46,8 @@ int dpbp_open(struct fsl_mc_io *mc_io,
u16 *token);
int dpbp_close(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token);
-
-/**
- * struct dpbp_cfg - Structure representing DPBP configuration
- * @options: place holder
- */
-struct dpbp_cfg {
- u32 options;
-};
-
-int dpbp_create(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- const struct dpbp_cfg *cfg,
- u16 *token);
-
-int dpbp_destroy(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token);
+ u32 cmd_flags,
+ u16 token);
int dpbp_enable(struct fsl_mc_io *mc_io,
u32 cmd_flags,
@@ -82,139 +67,24 @@ int dpbp_reset(struct fsl_mc_io *mc_io,
u16 token);
/**
- * struct dpbp_irq_cfg - IRQ configuration
- * @addr: Address that must be written to signal a message-based interrupt
- * @val: Value to write into irq_addr address
- * @irq_num: A user defined number associated with this IRQ
- */
-struct dpbp_irq_cfg {
- u64 addr;
- u32 val;
- int irq_num;
-};
-
-int dpbp_set_irq(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- struct dpbp_irq_cfg *irq_cfg);
-
-int dpbp_get_irq(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- int *type,
- struct dpbp_irq_cfg *irq_cfg);
-
-int dpbp_set_irq_enable(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u8 en);
-
-int dpbp_get_irq_enable(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u8 *en);
-
-int dpbp_set_irq_mask(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u32 mask);
-
-int dpbp_get_irq_mask(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u32 *mask);
-
-int dpbp_get_irq_status(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u32 *status);
-
-int dpbp_clear_irq_status(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u32 status);
-
-/**
* struct dpbp_attr - Structure representing DPBP attributes
* @id: DPBP object ID
- * @version: DPBP version
* @bpid: Hardware buffer pool ID; should be used as an argument in
* acquire/release operations on buffers
*/
struct dpbp_attr {
int id;
- /**
- * struct version - Structure representing DPBP version
- * @major: DPBP major version
- * @minor: DPBP minor version
- */
- struct {
- u16 major;
- u16 minor;
- } version;
u16 bpid;
};
-int dpbp_get_attributes(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- struct dpbp_attr *attr);
-
-/**
- * DPBP notifications options
- */
-
-/**
- * BPSCN write will attempt to allocate into a cache (coherent write)
- */
-#define DPBP_NOTIF_OPT_COHERENT_WRITE 0x00000001
-
-/**
- * struct dpbp_notification_cfg - Structure representing DPBP notifications
- * towards software
- * @depletion_entry: below this threshold the pool is "depleted";
- * set it to '0' to disable it
- * @depletion_exit: greater than or equal to this threshold the pool exit its
- * "depleted" state
- * @surplus_entry: above this threshold the pool is in "surplus" state;
- * set it to '0' to disable it
- * @surplus_exit: less than or equal to this threshold the pool exit its
- * "surplus" state
- * @message_iova: MUST be given if either 'depletion_entry' or 'surplus_entry'
- * is not '0' (enable); I/O virtual address (must be in DMA-able memory),
- * must be 16B aligned.
- * @message_ctx: The context that will be part of the BPSCN message and will
- * be written to 'message_iova'
- * @options: Mask of available options; use 'DPBP_NOTIF_OPT_<X>' values
- */
-struct dpbp_notification_cfg {
- u32 depletion_entry;
- u32 depletion_exit;
- u32 surplus_entry;
- u32 surplus_exit;
- u64 message_iova;
- u64 message_ctx;
- u16 options;
-};
-
-int dpbp_set_notifications(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- struct dpbp_notification_cfg *cfg);
-
-int dpbp_get_notifications(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- struct dpbp_notification_cfg *cfg);
-
-/** @} */
+int dpbp_get_attributes(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpbp_attr *attr);
+
+int dpbp_get_api_version(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 *major_ver,
+ u16 *minor_ver);
#endif /* __FSL_DPBP_H */
--- /dev/null
+++ b/drivers/staging/fsl-mc/include/dpcon.h
@@ -0,0 +1,115 @@
+/* Copyright 2013-2016 Freescale Semiconductor Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __FSL_DPCON_H
+#define __FSL_DPCON_H
+
+/* Data Path Concentrator API
+ * Contains initialization APIs and runtime control APIs for DPCON
+ */
+
+struct fsl_mc_io;
+
+/** General DPCON macros */
+
+/**
+ * Use it to disable notifications; see dpcon_set_notification()
+ */
+#define DPCON_INVALID_DPIO_ID (int)(-1)
+
+int dpcon_open(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ int dpcon_id,
+ u16 *token);
+
+int dpcon_close(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+int dpcon_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+int dpcon_disable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+int dpcon_is_enabled(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int *en);
+
+int dpcon_reset(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token);
+
+/**
+ * struct dpcon_attr - Structure representing DPCON attributes
+ * @id: DPCON object ID
+ * @qbman_ch_id: Channel ID to be used by dequeue operation
+ * @num_priorities: Number of priorities for the DPCON channel (1-8)
+ */
+struct dpcon_attr {
+ int id;
+ u16 qbman_ch_id;
+ u8 num_priorities;
+};
+
+int dpcon_get_attributes(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpcon_attr *attr);
+
+/**
+ * struct dpcon_notification_cfg - Structure representing notification params
+ * @dpio_id: DPIO object ID; must be configured with a notification channel;
+ * to disable notifications set it to 'DPCON_INVALID_DPIO_ID';
+ * @priority: Priority selection within the DPIO channel; valid values
+ * are 0-7, depending on the number of priorities in that channel
+ * @user_ctx: User context value provided with each CDAN message
+ */
+struct dpcon_notification_cfg {
+ int dpio_id;
+ u8 priority;
+ u64 user_ctx;
+};
+
+int dpcon_set_notification(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dpcon_notification_cfg *cfg);
+
+int dpcon_get_api_version(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 *major_ver,
+ u16 *minor_ver);
+
+#endif /* __FSL_DPCON_H */
--- a/drivers/staging/fsl-mc/include/dpmng.h
+++ b/drivers/staging/fsl-mc/include/dpmng.h
@@ -1,4 +1,5 @@
-/* Copyright 2013-2015 Freescale Semiconductor Inc.
+/*
+ * Copyright 2013-2016 Freescale Semiconductor Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@@ -32,7 +33,8 @@
#ifndef __FSL_DPMNG_H
#define __FSL_DPMNG_H
-/* Management Complex General API
+/*
+ * Management Complex General API
* Contains general API for the Management Complex firmware
*/
@@ -58,12 +60,8 @@ struct mc_version {
u32 revision;
};
-int mc_get_version(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- struct mc_version *mc_ver_info);
-
-int dpmng_get_container_id(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- int *container_id);
+int mc_get_version(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ struct mc_version *mc_ver_info);
#endif /* __FSL_DPMNG_H */
--- /dev/null
+++ b/drivers/staging/fsl-mc/include/dpopr.h
@@ -0,0 +1,110 @@
+/*
+ * Copyright 2017 NXP
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * * Neither the name of the above-listed copyright holders nor the
+ * names of any contributors may be used to endorse or promote products
+ * derived from this software without specific prior written permission.
+ *
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") as published by the Free Software
+ * Foundation, either version 2 of that License or (at your option) any
+ * later version.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDERS OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+#ifndef __FSL_DPOPR_H_
+#define __FSL_DPOPR_H_
+
+/* Data Path Order Restoration API
+ * Contains initialization APIs and runtime APIs for the Order Restoration
+ */
+
+/** Order Restoration properties */
+
+/**
+ * Create a new Order Point Record option
+ */
+#define OPR_OPT_CREATE 0x1
+/**
+ * Retire an existing Order Point Record option
+ */
+#define OPR_OPT_RETIRE 0x2
+
+/**
+ * struct opr_cfg - Structure representing OPR configuration
+ * @oprrws: Order point record (OPR) restoration window size (0 to 5)
+ * 0 - Window size is 32 frames.
+ * 1 - Window size is 64 frames.
+ * 2 - Window size is 128 frames.
+ * 3 - Window size is 256 frames.
+ * 4 - Window size is 512 frames.
+ * 5 - Window size is 1024 frames.
+ * @oa: OPR auto advance NESN window size (0 disabled, 1 enabled)
+ * @olws: OPR acceptable late arrival window size (0 to 3)
+ * 0 - Disabled. Late arrivals are always rejected.
+ * 1 - Window size is 32 frames.
+ * 2 - Window size is the same as the OPR restoration
+ * window size configured in the OPRRWS field.
+ * 3 - Window size is 8192 frames. Late arrivals are
+ * always accepted.
+ * @oeane: Order restoration list (ORL) resource exhaustion
+ * advance NESN enable (0 disabled, 1 enabled)
+ * @oloe: OPR loose ordering enable (0 disabled, 1 enabled)
+ */
+struct opr_cfg {
+ u8 oprrws;
+ u8 oa;
+ u8 olws;
+ u8 oeane;
+ u8 oloe;
+};
+
+/**
+ * struct opr_qry - Structure representing OPR configuration
+ * @enable: Enabled state
+ * @rip: Retirement In Progress
+ * @ndsn: Next dispensed sequence number
+ * @nesn: Next expected sequence number
+ * @ea_hseq: Early arrival head sequence number
+ * @hseq_nlis: HSEQ not last in sequence
+ * @ea_tseq: Early arrival tail sequence number
+ * @tseq_nlis: TSEQ not last in sequence
+ * @ea_tptr: Early arrival tail pointer
+ * @ea_hptr: Early arrival head pointer
+ * @opr_id: Order Point Record ID
+ * @opr_vid: Order Point Record Virtual ID
+ */
+struct opr_qry {
+ char enable;
+ char rip;
+ u16 ndsn;
+ u16 nesn;
+ u16 ea_hseq;
+ char hseq_nlis;
+ u16 ea_tseq;
+ char tseq_nlis;
+ u16 ea_tptr;
+ u16 ea_hptr;
+ u16 opr_id;
+ u16 opr_vid;
+};
+
+#endif /* __FSL_DPOPR_H_ */
--- a/drivers/staging/fsl-mc/include/dprc.h
+++ b/drivers/staging/fsl-mc/include/dprc.h
@@ -1,4 +1,5 @@
-/* Copyright 2013-2015 Freescale Semiconductor Inc.
+/*
+ * Copyright 2013-2016 Freescale Semiconductor Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@@ -34,26 +35,13 @@
#include "mc-cmd.h"
-/* Data Path Resource Container API
+/*
+ * Data Path Resource Container API
* Contains DPRC API for managing and querying DPAA resources
*/
struct fsl_mc_io;
-/**
- * Set this value as the icid value in dprc_cfg structure when creating a
- * container, in case the ICID is not selected by the user and should be
- * allocated by the DPRC from the pool of ICIDs.
- */
-#define DPRC_GET_ICID_FROM_POOL (u16)(~(0))
-
-/**
- * Set this value as the portal_id value in dprc_cfg structure when creating a
- * container, in case the portal ID is not specifically selected by the
- * user and should be allocated by the DPRC from the pool of portal ids.
- */
-#define DPRC_GET_PORTAL_ID_FROM_POOL (int)(~(0))
-
int dprc_open(struct fsl_mc_io *mc_io,
u32 cmd_flags,
int container_id,
@@ -63,75 +51,6 @@ int dprc_close(struct fsl_mc_io *mc_io,
u32 cmd_flags,
u16 token);
-/**
- * Container general options
- *
- * These options may be selected at container creation by the container creator
- * and can be retrieved using dprc_get_attributes()
- */
-
-/* Spawn Policy Option allowed - Indicates that the new container is allowed
- * to spawn and have its own child containers.
- */
-#define DPRC_CFG_OPT_SPAWN_ALLOWED 0x00000001
-
-/* General Container allocation policy - Indicates that the new container is
- * allowed to allocate requested resources from its parent container; if not
- * set, the container is only allowed to use resources in its own pools; Note
- * that this is a container's global policy, but the parent container may
- * override it and set specific quota per resource type.
- */
-#define DPRC_CFG_OPT_ALLOC_ALLOWED 0x00000002
-
-/* Object initialization allowed - software context associated with this
- * container is allowed to invoke object initialization operations.
- */
-#define DPRC_CFG_OPT_OBJ_CREATE_ALLOWED 0x00000004
-
-/* Topology change allowed - software context associated with this
- * container is allowed to invoke topology operations, such as attach/detach
- * of network objects.
- */
-#define DPRC_CFG_OPT_TOPOLOGY_CHANGES_ALLOWED 0x00000008
-
-/* AIOP - Indicates that container belongs to AIOP. */
-#define DPRC_CFG_OPT_AIOP 0x00000020
-
-/* IRQ Config - Indicates that the container allowed to configure its IRQs. */
-#define DPRC_CFG_OPT_IRQ_CFG_ALLOWED 0x00000040
-
-/**
- * struct dprc_cfg - Container configuration options
- * @icid: Container's ICID; if set to 'DPRC_GET_ICID_FROM_POOL', a free
- * ICID value is allocated by the DPRC
- * @portal_id: Portal ID; if set to 'DPRC_GET_PORTAL_ID_FROM_POOL', a free
- * portal ID is allocated by the DPRC
- * @options: Combination of 'DPRC_CFG_OPT_<X>' options
- * @label: Object's label
- */
-struct dprc_cfg {
- u16 icid;
- int portal_id;
- u64 options;
- char label[16];
-};
-
-int dprc_create_container(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- struct dprc_cfg *cfg,
- int *child_container_id,
- u64 *child_portal_offset);
-
-int dprc_destroy_container(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int child_container_id);
-
-int dprc_reset_container(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int child_container_id);
/* IRQ */
@@ -139,7 +58,7 @@ int dprc_reset_container(struct fsl_mc_i
#define DPRC_IRQ_INDEX 0
/* Number of dprc's IRQs */
-#define DPRC_NUM_OF_IRQS 1
+#define DPRC_NUM_OF_IRQS 1
/* DPRC IRQ events */
@@ -151,12 +70,14 @@ int dprc_reset_container(struct fsl_mc_i
#define DPRC_IRQ_EVENT_RES_ADDED 0x00000004
/* IRQ event - Indicates that resources removed from the container */
#define DPRC_IRQ_EVENT_RES_REMOVED 0x00000008
-/* IRQ event - Indicates that one of the descendant containers that opened by
+/*
+ * IRQ event - Indicates that one of the descendant containers that opened by
* this container is destroyed
*/
#define DPRC_IRQ_EVENT_CONTAINER_DESTROYED 0x00000010
-/* IRQ event - Indicates that on one of the container's opened object is
+/*
+ * IRQ event - Indicates that on one of the container's opened object is
* destroyed
*/
#define DPRC_IRQ_EVENT_OBJ_DESTROYED 0x00000020
@@ -171,59 +92,59 @@ int dprc_reset_container(struct fsl_mc_i
* @irq_num: A user defined number associated with this IRQ
*/
struct dprc_irq_cfg {
- phys_addr_t paddr;
- u32 val;
- int irq_num;
-};
-
-int dprc_set_irq(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- struct dprc_irq_cfg *irq_cfg);
-
-int dprc_get_irq(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- int *type,
- struct dprc_irq_cfg *irq_cfg);
-
-int dprc_set_irq_enable(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u8 en);
-
-int dprc_get_irq_enable(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u8 *en);
-
-int dprc_set_irq_mask(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u32 mask);
-
-int dprc_get_irq_mask(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u32 *mask);
-
-int dprc_get_irq_status(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u32 *status);
-
-int dprc_clear_irq_status(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- u8 irq_index,
- u32 status);
+ phys_addr_t paddr;
+ u32 val;
+ int irq_num;
+};
+
+int dprc_set_irq(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ struct dprc_irq_cfg *irq_cfg);
+
+int dprc_get_irq(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ int *type,
+ struct dprc_irq_cfg *irq_cfg);
+
+int dprc_set_irq_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u8 en);
+
+int dprc_get_irq_enable(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u8 *en);
+
+int dprc_set_irq_mask(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 mask);
+
+int dprc_get_irq_mask(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 *mask);
+
+int dprc_get_irq_status(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 *status);
+
+int dprc_clear_irq_status(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ u8 irq_index,
+ u32 status);
/**
* struct dprc_attributes - Container attributes
@@ -231,114 +152,23 @@ int dprc_clear_irq_status(struct fsl_mc_
* @icid: Container's ICID
* @portal_id: Container's portal ID
* @options: Container's options as set at container's creation
- * @version: DPRC version
*/
struct dprc_attributes {
int container_id;
u16 icid;
int portal_id;
u64 options;
- /**
- * struct version - DPRC version
- * @major: DPRC major version
- * @minor: DPRC minor version
- */
- struct {
- u16 major;
- u16 minor;
- } version;
};
-int dprc_get_attributes(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- struct dprc_attributes *attributes);
-
-int dprc_set_res_quota(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int child_container_id,
- char *type,
- u16 quota);
-
-int dprc_get_res_quota(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int child_container_id,
- char *type,
- u16 *quota);
-
-/* Resource request options */
-
-/* Explicit resource ID request - The requested objects/resources
- * are explicit and sequential (in case of resources).
- * The base ID is given at res_req at base_align field
- */
-#define DPRC_RES_REQ_OPT_EXPLICIT 0x00000001
-
-/* Aligned resources request - Relevant only for resources
- * request (and not objects). Indicates that resources base ID should be
- * sequential and aligned to the value given at dprc_res_req base_align field
- */
-#define DPRC_RES_REQ_OPT_ALIGNED 0x00000002
-
-/* Plugged Flag - Relevant only for object assignment request.
- * Indicates that after all objects assigned. An interrupt will be invoked at
- * the relevant GPP. The assigned object will be marked as plugged.
- * plugged objects can't be assigned from their container
- */
-#define DPRC_RES_REQ_OPT_PLUGGED 0x00000004
-
-/**
- * struct dprc_res_req - Resource request descriptor, to be used in assignment
- * or un-assignment of resources and objects.
- * @type: Resource/object type: Represent as a NULL terminated string.
- * This string may received by using dprc_get_pool() to get resource
- * type and dprc_get_obj() to get object type;
- * Note: it is not possible to assign/un-assign DPRC objects
- * @num: Number of resources
- * @options: Request options: combination of DPRC_RES_REQ_OPT_ options
- * @id_base_align: In case of explicit assignment (DPRC_RES_REQ_OPT_EXPLICIT
- * is set at option), this field represents the required base ID
- * for resource allocation; In case of aligned assignment
- * (DPRC_RES_REQ_OPT_ALIGNED is set at option), this field
- * indicates the required alignment for the resource ID(s) -
- * use 0 if there is no alignment or explicit ID requirements
- */
-struct dprc_res_req {
- char type[16];
- u32 num;
- u32 options;
- int id_base_align;
-};
-
-int dprc_assign(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int container_id,
- struct dprc_res_req *res_req);
-
-int dprc_unassign(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int child_container_id,
- struct dprc_res_req *res_req);
-
-int dprc_get_pool_count(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int *pool_count);
-
-int dprc_get_pool(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int pool_index,
- char *type);
+int dprc_get_attributes(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ struct dprc_attributes *attributes);
int dprc_get_obj_count(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int *obj_count);
+ u32 cmd_flags,
+ u16 token,
+ int *obj_count);
/* Objects Attributes Flags */
@@ -353,7 +183,7 @@ int dprc_get_obj_count(struct fsl_mc_io
* masters;
* user is responsible for proper memory handling through IOMMU configuration.
*/
-#define DPRC_OBJ_FLAG_NO_MEM_SHAREABILITY 0x0001
+#define DPRC_OBJ_FLAG_NO_MEM_SHAREABILITY 0x0001
/**
* struct dprc_obj_desc - Object descriptor, returned from dprc_get_obj()
@@ -381,41 +211,41 @@ struct dprc_obj_desc {
u16 flags;
};
-int dprc_get_obj(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- int obj_index,
- struct dprc_obj_desc *obj_desc);
-
-int dprc_get_obj_desc(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- char *obj_type,
- int obj_id,
- struct dprc_obj_desc *obj_desc);
-
-int dprc_set_obj_irq(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- char *obj_type,
- int obj_id,
- u8 irq_index,
- struct dprc_irq_cfg *irq_cfg);
-
-int dprc_get_obj_irq(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- char *obj_type,
- int obj_id,
- u8 irq_index,
- int *type,
- struct dprc_irq_cfg *irq_cfg);
-
-int dprc_get_res_count(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- char *type,
- int *res_count);
+int dprc_get_obj(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int obj_index,
+ struct dprc_obj_desc *obj_desc);
+
+int dprc_get_obj_desc(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ char *obj_type,
+ int obj_id,
+ struct dprc_obj_desc *obj_desc);
+
+int dprc_set_obj_irq(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ char *obj_type,
+ int obj_id,
+ u8 irq_index,
+ struct dprc_irq_cfg *irq_cfg);
+
+int dprc_get_obj_irq(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ char *obj_type,
+ int obj_id,
+ u8 irq_index,
+ int *type,
+ struct dprc_irq_cfg *irq_cfg);
+
+int dprc_get_res_count(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ char *type,
+ int *res_count);
/**
* enum dprc_iter_status - Iteration status
@@ -429,27 +259,6 @@ enum dprc_iter_status {
DPRC_ITER_STATUS_LAST = 2
};
-/**
- * struct dprc_res_ids_range_desc - Resource ID range descriptor
- * @base_id: Base resource ID of this range
- * @last_id: Last resource ID of this range
- * @iter_status: Iteration status - should be set to DPRC_ITER_STATUS_FIRST at
- * first iteration; while the returned marker is DPRC_ITER_STATUS_MORE,
- * additional iterations are needed, until the returned marker is
- * DPRC_ITER_STATUS_LAST
- */
-struct dprc_res_ids_range_desc {
- int base_id;
- int last_id;
- enum dprc_iter_status iter_status;
-};
-
-int dprc_get_res_ids(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- char *type,
- struct dprc_res_ids_range_desc *range_desc);
-
/* Region flags */
/* Cacheable - Indicates that region should be mapped as cacheable */
#define DPRC_REGION_CACHEABLE 0x00000001
@@ -481,64 +290,27 @@ struct dprc_region_desc {
enum dprc_region_type type;
};
-int dprc_get_obj_region(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- char *obj_type,
- int obj_id,
- u8 region_index,
- struct dprc_region_desc *region_desc);
-
-int dprc_set_obj_label(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- char *obj_type,
- int obj_id,
- char *label);
+int dprc_get_obj_region(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ char *obj_type,
+ int obj_id,
+ u8 region_index,
+ struct dprc_region_desc *region_desc);
-/**
- * struct dprc_endpoint - Endpoint description for link connect/disconnect
- * operations
- * @type: Endpoint object type: NULL terminated string
- * @id: Endpoint object ID
- * @if_id: Interface ID; should be set for endpoints with multiple
- * interfaces ("dpsw", "dpdmux"); for others, always set to 0
- */
-struct dprc_endpoint {
- char type[16];
- int id;
- int if_id;
-};
+int dprc_get_api_version(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 *major_ver,
+ u16 *minor_ver);
-/**
- * struct dprc_connection_cfg - Connection configuration.
- * Used for virtual connections only
- * @committed_rate: Committed rate (Mbits/s)
- * @max_rate: Maximum rate (Mbits/s)
- */
-struct dprc_connection_cfg {
- u32 committed_rate;
- u32 max_rate;
-};
+int dprc_get_container_id(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ int *container_id);
-int dprc_connect(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- const struct dprc_endpoint *endpoint1,
- const struct dprc_endpoint *endpoint2,
- const struct dprc_connection_cfg *cfg);
-
-int dprc_disconnect(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- const struct dprc_endpoint *endpoint);
-
-int dprc_get_connection(struct fsl_mc_io *mc_io,
- u32 cmd_flags,
- u16 token,
- const struct dprc_endpoint *endpoint1,
- struct dprc_endpoint *endpoint2,
- int *state);
+int dprc_reset_container(struct fsl_mc_io *mc_io,
+ u32 cmd_flags,
+ u16 token,
+ int child_container_id);
#endif /* _FSL_DPRC_H */
--- a/drivers/staging/fsl-mc/include/mc-bus.h
+++ b/drivers/staging/fsl-mc/include/mc-bus.h
@@ -1,7 +1,7 @@
/*
* Freescale Management Complex (MC) bus declarations
*
- * Copyright (C) 2014 Freescale Semiconductor, Inc.
+ * Copyright (C) 2014-2016 Freescale Semiconductor, Inc.
* Author: German Rivera <German.Rivera@freescale.com>
*
* This file is licensed under the terms of the GNU General Public
@@ -42,8 +42,8 @@ struct msi_domain_info;
*/
struct fsl_mc_resource_pool {
enum fsl_mc_pool_type type;
- int16_t max_count;
- int16_t free_count;
+ int max_count;
+ int free_count;
struct mutex mutex; /* serializes access to free_list */
struct list_head free_list;
struct fsl_mc_bus *mc_bus;
@@ -73,6 +73,7 @@ struct fsl_mc_bus {
int dprc_scan_container(struct fsl_mc_device *mc_bus_dev);
int dprc_scan_objects(struct fsl_mc_device *mc_bus_dev,
+ const char *driver_override,
unsigned int *total_irq_count);
int __init dprc_driver_init(void);
--- a/drivers/staging/fsl-mc/include/mc-cmd.h
+++ b/drivers/staging/fsl-mc/include/mc-cmd.h
@@ -1,4 +1,5 @@
-/* Copyright 2013-2015 Freescale Semiconductor Inc.
+/*
+ * Copyright 2013-2016 Freescale Semiconductor Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
@@ -48,6 +49,15 @@ struct mc_command {
u64 params[MC_CMD_NUM_OF_PARAMS];
};
+struct mc_rsp_create {
+ __le32 object_id;
+};
+
+struct mc_rsp_api_ver {
+ __le16 major_ver;
+ __le16 minor_ver;
+};
+
enum mc_cmd_status {
MC_CMD_STATUS_OK = 0x0, /* Completed successfully */
MC_CMD_STATUS_READY = 0x1, /* Ready to be processed */
@@ -72,11 +82,6 @@ enum mc_cmd_status {
/* Command completion flag */
#define MC_CMD_FLAG_INTR_DIS 0x01
-#define MC_CMD_HDR_CMDID_MASK 0xFFF0
-#define MC_CMD_HDR_CMDID_SHIFT 4
-#define MC_CMD_HDR_TOKEN_MASK 0xFFC0
-#define MC_CMD_HDR_TOKEN_SHIFT 6
-
static inline u64 mc_encode_cmd_header(u16 cmd_id,
u32 cmd_flags,
u16 token)
@@ -84,10 +89,8 @@ static inline u64 mc_encode_cmd_header(u
u64 header = 0;
struct mc_cmd_header *hdr = (struct mc_cmd_header *)&header;
- hdr->cmd_id = cpu_to_le16((cmd_id << MC_CMD_HDR_CMDID_SHIFT) &
- MC_CMD_HDR_CMDID_MASK);
- hdr->token = cpu_to_le16((token << MC_CMD_HDR_TOKEN_SHIFT) &
- MC_CMD_HDR_TOKEN_MASK);
+ hdr->cmd_id = cpu_to_le16(cmd_id);
+ hdr->token = cpu_to_le16(token);
hdr->status = MC_CMD_STATUS_READY;
if (cmd_flags & MC_CMD_FLAG_PRI)
hdr->flags_hw = MC_CMD_FLAG_PRI;
@@ -102,7 +105,26 @@ static inline u16 mc_cmd_hdr_read_token(
struct mc_cmd_header *hdr = (struct mc_cmd_header *)&cmd->header;
u16 token = le16_to_cpu(hdr->token);
- return (token & MC_CMD_HDR_TOKEN_MASK) >> MC_CMD_HDR_TOKEN_SHIFT;
+ return token;
+}
+
+static inline u32 mc_cmd_read_object_id(struct mc_command *cmd)
+{
+ struct mc_rsp_create *rsp_params;
+
+ rsp_params = (struct mc_rsp_create *)cmd->params;
+ return le32_to_cpu(rsp_params->object_id);
+}
+
+static inline void mc_cmd_read_api_version(struct mc_command *cmd,
+ u16 *major_ver,
+ u16 *minor_ver)
+{
+ struct mc_rsp_api_ver *rsp_params;
+
+ rsp_params = (struct mc_rsp_api_ver *)cmd->params;
+ *major_ver = le16_to_cpu(rsp_params->major_ver);
+ *minor_ver = le16_to_cpu(rsp_params->minor_ver);
}
#endif /* __FSL_MC_CMD_H */
--- a/drivers/staging/fsl-mc/include/mc-sys.h
+++ b/drivers/staging/fsl-mc/include/mc-sys.h
@@ -1,4 +1,5 @@
-/* Copyright 2013-2014 Freescale Semiconductor Inc.
+/*
+ * Copyright 2013-2016 Freescale Semiconductor Inc.
*
* Interface of the I/O services to send MC commands to the MC hardware
*
--- a/drivers/staging/fsl-mc/include/mc.h
+++ b/drivers/staging/fsl-mc/include/mc.h
@@ -1,7 +1,7 @@
/*
* Freescale Management Complex (MC) bus public interface
*
- * Copyright (C) 2014 Freescale Semiconductor, Inc.
+ * Copyright (C) 2014-2016 Freescale Semiconductor, Inc.
* Author: German Rivera <German.Rivera@freescale.com>
*
* This file is licensed under the terms of the GNU General Public
@@ -81,7 +81,7 @@ enum fsl_mc_pool_type {
*/
struct fsl_mc_resource {
enum fsl_mc_pool_type type;
- int32_t id;
+ s32 id;
void *data;
struct fsl_mc_resource_pool *parent_pool;
struct list_head node;
@@ -122,6 +122,7 @@ struct fsl_mc_device_irq {
* @regions: pointer to array of MMIO region entries
* @irqs: pointer to array of pointers to interrupts allocated to this device
* @resource: generic resource associated with this MC object device, if any.
+ * @driver_override: Driver name to force a match
*
* Generic device object for MC object devices that are "attached" to a
* MC bus.
@@ -154,6 +155,7 @@ struct fsl_mc_device {
struct resource *regions;
struct fsl_mc_device_irq **irqs;
struct fsl_mc_resource *resource;
+ const char *driver_override;
};
#define to_fsl_mc_device(_dev) \
@@ -175,6 +177,8 @@ struct fsl_mc_device {
#define fsl_mc_driver_register(drv) \
__fsl_mc_driver_register(drv, THIS_MODULE)
+void fsl_mc_device_remove(struct fsl_mc_device *mc_dev);
+
int __must_check __fsl_mc_driver_register(struct fsl_mc_driver *fsl_mc_driver,
struct module *owner);
@@ -198,4 +202,13 @@ int __must_check fsl_mc_allocate_irqs(st
void fsl_mc_free_irqs(struct fsl_mc_device *mc_dev);
+void fsl_mc_dma_configure(struct fsl_mc_device *mc_dev,
+ struct device_node *fsl_mc_platform_node, int coherent);
+
+#ifdef CONFIG_FSL_MC_BUS
+struct iommu_group *fsl_mc_device_group(struct device *dev);
+#else
+#define fsl_mc_device_group(__dev) NULL
+#endif
+
#endif /* _FSL_MC_H_ */
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