diff options
Diffstat (limited to 'meta-agl-bsp/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi/0003-Fix-PCIe-in-dom0-for-RPi4.patch')
| -rw-r--r-- | meta-agl-bsp/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi/0003-Fix-PCIe-in-dom0-for-RPi4.patch | 31 |
1 files changed, 0 insertions, 31 deletions
diff --git a/meta-agl-bsp/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi/0003-Fix-PCIe-in-dom0-for-RPi4.patch b/meta-agl-bsp/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi/0003-Fix-PCIe-in-dom0-for-RPi4.patch deleted file mode 100644 index 835f36da3..000000000 --- a/meta-agl-bsp/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi/0003-Fix-PCIe-in-dom0-for-RPi4.patch +++ /dev/null @@ -1,31 +0,0 @@ -From 77765c2a47ce43911b8fe7b09f037c9bc13008ca Mon Sep 17 00:00:00 2001 -From: Jeff Kubascik <jeff.kubascik@dornerworks.com> -Date: Tue, 30 Jul 2019 08:49:56 -0400 -Subject: [PATCH 3/4] Fix PCIe in dom0 for RPi4 - -There is an issue where the Broadcom PCIe driver and Xen swiotlb layer -invoke each other's dma alloc function recursively until the stack blows -up. The cause appears to be due to arch_setup_dma_ops being called -more than once for the device, possibly through of_dma_configure, and -screwing up the dma_ops pointers. This patch adds a check to make sure -that the xen_dma_ops are applied only once for a device. ---- - arch/arm64/mm/dma-mapping.c | 2 +- - 1 file changed, 1 insertion(+), 1 deletion(-) - -diff --git a/arch/arm64/mm/dma-mapping.c b/arch/arm64/mm/dma-mapping.c -index d3a5bb16f..243a3b9be 100644 ---- a/arch/arm64/mm/dma-mapping.c -+++ b/arch/arm64/mm/dma-mapping.c -@@ -895,7 +895,7 @@ void arch_setup_dma_ops(struct device *dev, u64 dma_base, u64 size, - __iommu_setup_dma_ops(dev, dma_base, size, iommu); - - #ifdef CONFIG_XEN -- if (xen_initial_domain()) { -+ if (!dev->archdata.dev_dma_ops && xen_initial_domain()) { - dev->archdata.dev_dma_ops = dev->dma_ops; - dev->dma_ops = xen_dma_ops; - } --- -2.17.1 - |