diff options
Diffstat (limited to 'target/linux/generic/pending-5.10/850-0011-PCI-aardvark-Fix-setting-MSI-address.patch')
| -rw-r--r-- | target/linux/generic/pending-5.10/850-0011-PCI-aardvark-Fix-setting-MSI-address.patch | 91 |
1 files changed, 0 insertions, 91 deletions
diff --git a/target/linux/generic/pending-5.10/850-0011-PCI-aardvark-Fix-setting-MSI-address.patch b/target/linux/generic/pending-5.10/850-0011-PCI-aardvark-Fix-setting-MSI-address.patch deleted file mode 100644 index 587e78111a..0000000000 --- a/target/linux/generic/pending-5.10/850-0011-PCI-aardvark-Fix-setting-MSI-address.patch +++ /dev/null @@ -1,91 +0,0 @@ -From fa73c200f181436eab859374657c53a73778d8ad Mon Sep 17 00:00:00 2001 -From: =?UTF-8?q?Pali=20Roh=C3=A1r?= <pali@kernel.org> -Date: Fri, 26 Mar 2021 17:35:44 +0100 -Subject: [PATCH] PCI: aardvark: Fix setting MSI address -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -MSI address for receiving MSI interrupts needs to be correctly set before -enabling processing of MSI interrupts. - -Move code for setting PCIE_MSI_ADDR_LOW_REG and PCIE_MSI_ADDR_HIGH_REG -from advk_pcie_init_msi_irq_domain() to advk_pcie_setup_hw(), before -enabling PCIE_CORE_CTRL2_MSI_ENABLE. - -After this we can remove the now unused member msi_msg, which was used -only for MSI doorbell address. MSI address can be any address which cannot -be used to DMA to. So change it to the address of the main struct advk_pcie. - -Fixes: 8c39d710363c ("PCI: aardvark: Add Aardvark PCI host controller driver") -Signed-off-by: Pali Rohár <pali@kernel.org> -Acked-by: Marc Zyngier <maz@kernel.org> -Signed-off-by: Marek Behún <kabel@kernel.org> -Cc: stable@vger.kernel.org # f21a8b1b6837 ("PCI: aardvark: Move to MSI handling using generic MSI support") ---- - drivers/pci/controller/pci-aardvark.c | 21 +++++++++------------ - 1 file changed, 9 insertions(+), 12 deletions(-) - ---- a/drivers/pci/controller/pci-aardvark.c -+++ b/drivers/pci/controller/pci-aardvark.c -@@ -284,7 +284,6 @@ struct advk_pcie { - raw_spinlock_t msi_irq_lock; - DECLARE_BITMAP(msi_used, MSI_IRQ_NUM); - struct mutex msi_used_lock; -- u16 msi_msg; - int link_gen; - struct pci_bridge_emul bridge; - struct gpio_desc *reset_gpio; -@@ -479,6 +478,7 @@ static void advk_pcie_disable_ob_win(str - - static void advk_pcie_setup_hw(struct advk_pcie *pcie) - { -+ phys_addr_t msi_addr; - u32 reg; - int i; - -@@ -567,6 +567,11 @@ static void advk_pcie_setup_hw(struct ad - reg |= LANE_COUNT_1; - advk_writel(pcie, reg, PCIE_CORE_CTRL0_REG); - -+ /* Set MSI address */ -+ msi_addr = virt_to_phys(pcie); -+ advk_writel(pcie, lower_32_bits(msi_addr), PCIE_MSI_ADDR_LOW_REG); -+ advk_writel(pcie, upper_32_bits(msi_addr), PCIE_MSI_ADDR_HIGH_REG); -+ - /* Enable MSI */ - reg = advk_readl(pcie, PCIE_CORE_CTRL2_REG); - reg |= PCIE_CORE_CTRL2_MSI_ENABLE; -@@ -1186,10 +1191,10 @@ static void advk_msi_irq_compose_msi_msg - struct msi_msg *msg) - { - struct advk_pcie *pcie = irq_data_get_irq_chip_data(data); -- phys_addr_t msi_msg = virt_to_phys(&pcie->msi_msg); -+ phys_addr_t msi_addr = virt_to_phys(pcie); - -- msg->address_lo = lower_32_bits(msi_msg); -- msg->address_hi = upper_32_bits(msi_msg); -+ msg->address_lo = lower_32_bits(msi_addr); -+ msg->address_hi = upper_32_bits(msi_addr); - msg->data = data->hwirq; - } - -@@ -1348,18 +1353,10 @@ static struct msi_domain_info advk_msi_d - static int advk_pcie_init_msi_irq_domain(struct advk_pcie *pcie) - { - struct device *dev = &pcie->pdev->dev; -- phys_addr_t msi_msg_phys; - - raw_spin_lock_init(&pcie->msi_irq_lock); - mutex_init(&pcie->msi_used_lock); - -- msi_msg_phys = virt_to_phys(&pcie->msi_msg); -- -- advk_writel(pcie, lower_32_bits(msi_msg_phys), -- PCIE_MSI_ADDR_LOW_REG); -- advk_writel(pcie, upper_32_bits(msi_msg_phys), -- PCIE_MSI_ADDR_HIGH_REG); -- - pcie->msi_inner_domain = - irq_domain_add_linear(NULL, MSI_IRQ_NUM, - &advk_msi_domain_ops, pcie); |