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-rw-r--r--meta-agl-bsp/meta-raspberrypi/recipes-kernel/linux/linux-raspberrypi/0003-Fix-PCIe-in-dom0-for-RPi4.patch31
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 835f36d..0000000
--- 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
-