diff options
Diffstat (limited to 'target/linux/generic/backport-5.10/850-v5.17-0006-PCI-aardvark-Disable-bus-mastering-when-unbinding-dr.patch')
| -rw-r--r-- | target/linux/generic/backport-5.10/850-v5.17-0006-PCI-aardvark-Disable-bus-mastering-when-unbinding-dr.patch | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/target/linux/generic/backport-5.10/850-v5.17-0006-PCI-aardvark-Disable-bus-mastering-when-unbinding-dr.patch b/target/linux/generic/backport-5.10/850-v5.17-0006-PCI-aardvark-Disable-bus-mastering-when-unbinding-dr.patch deleted file mode 100644 index c8d5e391b8..0000000000 --- a/target/linux/generic/backport-5.10/850-v5.17-0006-PCI-aardvark-Disable-bus-mastering-when-unbinding-dr.patch +++ /dev/null @@ -1,41 +0,0 @@ -From a46f2f6dd4093438d9615dfbf5c0fea2a9835dba Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org> -Date: Tue, 30 Nov 2021 18:29:08 +0100 -Subject: [PATCH] PCI: aardvark: Disable bus mastering when unbinding driver -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -Ensure that after driver unbind PCIe cards are not able to forward -memory and I/O requests in the upstream direction. - -Link: https://lore.kernel.org/r/20211130172913.9727-7-kabel@kernel.org -Signed-off-by: Pali Rohár <pali@kernel.org> -Signed-off-by: Marek Behún <kabel@kernel.org> -Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> ---- - drivers/pci/controller/pci-aardvark.c | 6 ++++++ - 1 file changed, 6 insertions(+) - ---- a/drivers/pci/controller/pci-aardvark.c -+++ b/drivers/pci/controller/pci-aardvark.c -@@ -1690,6 +1690,7 @@ static int advk_pcie_remove(struct platf - { - struct advk_pcie *pcie = platform_get_drvdata(pdev); - struct pci_host_bridge *bridge = pci_host_bridge_from_priv(pcie); -+ u32 val; - int i; - - /* Remove PCI bus with all devices */ -@@ -1698,6 +1699,11 @@ static int advk_pcie_remove(struct platf - pci_remove_root_bus(bridge->bus); - pci_unlock_rescan_remove(); - -+ /* Disable Root Bridge I/O space, memory space and bus mastering */ -+ val = advk_readl(pcie, PCIE_CORE_CMD_STATUS_REG); -+ val &= ~(PCI_COMMAND_IO | PCI_COMMAND_MEMORY | PCI_COMMAND_MASTER); -+ advk_writel(pcie, val, PCIE_CORE_CMD_STATUS_REG); -+ - /* Remove IRQ domains */ - advk_pcie_remove_msi_irq_domain(pcie); - advk_pcie_remove_irq_domain(pcie); |