45 lines
1.6 KiB
Diff
45 lines
1.6 KiB
Diff
From 98feaf97bc64fc640a6c5b1394cd18fc7cd7dac8 Mon Sep 17 00:00:00 2001
|
|
From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
|
|
Date: Sun, 28 Mar 2021 14:34:49 +0200
|
|
Subject: [PATCH] PCI: aardvark: Refactor unmasking summary MSI interrupt
|
|
MIME-Version: 1.0
|
|
Content-Type: text/plain; charset=UTF-8
|
|
Content-Transfer-Encoding: 8bit
|
|
|
|
Refactor the masking of ISR0/1 Sources and unmasking of summary MSI interrupt
|
|
so that it corresponds to the comments:
|
|
- first mask all ISR0/1
|
|
- then unmask all MSIs
|
|
- then unmask summary MSI interrupt
|
|
|
|
Signed-off-by: Pali Rohár <pali@kernel.org>
|
|
Signed-off-by: Marek Behún <kabel@kernel.org>
|
|
---
|
|
drivers/pci/controller/pci-aardvark.c | 10 ++++++----
|
|
1 file changed, 6 insertions(+), 4 deletions(-)
|
|
|
|
--- a/drivers/pci/controller/pci-aardvark.c
|
|
+++ b/drivers/pci/controller/pci-aardvark.c
|
|
@@ -571,15 +571,17 @@ static void advk_pcie_setup_hw(struct ad
|
|
advk_writel(pcie, PCIE_IRQ_ALL_MASK, HOST_CTRL_INT_STATUS_REG);
|
|
|
|
/* Disable All ISR0/1 Sources */
|
|
- reg = PCIE_ISR0_ALL_MASK;
|
|
- reg &= ~PCIE_ISR0_MSI_INT_PENDING;
|
|
- advk_writel(pcie, reg, PCIE_ISR0_MASK_REG);
|
|
-
|
|
+ advk_writel(pcie, PCIE_ISR0_ALL_MASK, PCIE_ISR0_MASK_REG);
|
|
advk_writel(pcie, PCIE_ISR1_ALL_MASK, PCIE_ISR1_MASK_REG);
|
|
|
|
/* Unmask all MSIs */
|
|
advk_writel(pcie, ~(u32)PCIE_MSI_ALL_MASK, PCIE_MSI_MASK_REG);
|
|
|
|
+ /* Unmask summary MSI interrupt */
|
|
+ reg = advk_readl(pcie, PCIE_ISR0_MASK_REG);
|
|
+ reg &= ~PCIE_ISR0_MSI_INT_PENDING;
|
|
+ advk_writel(pcie, reg, PCIE_ISR0_MASK_REG);
|
|
+
|
|
/* Enable summary interrupt for GIC SPI source */
|
|
reg = PCIE_IRQ_ALL_MASK & (~PCIE_IRQ_ENABLE_INTS_MASK);
|
|
advk_writel(pcie, reg, HOST_CTRL_INT_MASK_REG);
|