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be381a7ac7
Deleted (upstreamed): generic/backport-5.15/350-v5.18-MIPS-pgalloc-fix-memory-leak-caused-by-pgd_free.patch [1] generic/backport-5.15/730-v5.16-hv-utils-add-PTP_1588_CLOCK-to-Kconfig-to-fix-build.patch [2] generic/pending-5.15/850-0014-PCI-aardvark-Fix-reading-PCI_EXP_RTSTA_PME-bit-on-em.patch [3] generic/pending-5.15/850-0002-PCI-aardvark-Fix-reading-MSI-interrupt-number.patch [4] Manually rebased: generic/pending-5.15/850-0002-PCI-aardvark-Fix-reading-MSI-interrupt-number.patch ramips/patches-5.15/710-at803x.patch [1] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.33&id=d29cda15cab086d82d692de016f7249545d4b6b4 [2] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.33&id=d5aad7d63b1b5c1f3c4b69e12c05e7c7d196fae8 [3] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.33&id=ed750e22e44366e264bcdf7b1cf0713f08f7980a [4] https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.15.33&id=0fe94b84c43cfea867e1721606185e8686d7d32f Signed-off-by: Rui Salvaterra <rsalvaterra@gmail.com> [Refresh patches again] [Remove generic/pending-5.15/850-0002-PCI-aardvark-Fix-reading-MSI-interrupt-number.patch] Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
49 lines
1.9 KiB
Diff
49 lines
1.9 KiB
Diff
From 13bcdf07cb2ecff5d45d2c141df2539b15211448 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org>
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Date: Tue, 30 Nov 2021 18:29:09 +0100
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Subject: [PATCH] PCI: aardvark: Mask all interrupts when unbinding driver
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MIME-Version: 1.0
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Content-Type: text/plain; charset=UTF-8
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Content-Transfer-Encoding: 8bit
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Ensure that no interrupt can be triggered after driver unbind.
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Link: https://lore.kernel.org/r/20211130172913.9727-8-kabel@kernel.org
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Signed-off-by: Pali Rohár <pali@kernel.org>
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Signed-off-by: Marek Behún <kabel@kernel.org>
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Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
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---
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drivers/pci/controller/pci-aardvark.c | 21 +++++++++++++++++++++
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1 file changed, 21 insertions(+)
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--- a/drivers/pci/controller/pci-aardvark.c
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+++ b/drivers/pci/controller/pci-aardvark.c
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@@ -1697,6 +1697,27 @@ static int advk_pcie_remove(struct platf
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val &= ~(PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER);
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advk_writel(pcie, val, PCIE_CORE_CMD_STATUS_REG);
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+ /* Disable MSI */
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+ val = advk_readl(pcie, PCIE_CORE_CTRL2_REG);
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+ val &= ~PCIE_CORE_CTRL2_MSI_ENABLE;
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+ advk_writel(pcie, val, PCIE_CORE_CTRL2_REG);
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+
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+ /* Clear MSI address */
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+ advk_writel(pcie, 0, PCIE_MSI_ADDR_LOW_REG);
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+ advk_writel(pcie, 0, PCIE_MSI_ADDR_HIGH_REG);
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+
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+ /* Mask all interrupts */
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+ advk_writel(pcie, PCIE_MSI_ALL_MASK, PCIE_MSI_MASK_REG);
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+ advk_writel(pcie, PCIE_ISR0_ALL_MASK, PCIE_ISR0_MASK_REG);
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+ advk_writel(pcie, PCIE_ISR1_ALL_MASK, PCIE_ISR1_MASK_REG);
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+ advk_writel(pcie, PCIE_IRQ_ALL_MASK, HOST_CTRL_INT_MASK_REG);
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+
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+ /* Clear all interrupts */
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+ advk_writel(pcie, PCIE_MSI_ALL_MASK, PCIE_MSI_STATUS_REG);
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+ advk_writel(pcie, PCIE_ISR0_ALL_MASK, PCIE_ISR0_REG);
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+ advk_writel(pcie, PCIE_ISR1_ALL_MASK, PCIE_ISR1_REG);
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+ advk_writel(pcie, PCIE_IRQ_ALL_MASK, HOST_CTRL_INT_STATUS_REG);
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+
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/* Remove IRQ domains */
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advk_pcie_remove_msi_irq_domain(pcie);
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advk_pcie_remove_irq_domain(pcie);
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