diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.14.71/0842-drm-amdgpu-Fix-non-contig-ptrace-VRAM-access-crossin.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.14.71/0842-drm-amdgpu-Fix-non-contig-ptrace-VRAM-access-crossin.patch | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.14.71/0842-drm-amdgpu-Fix-non-contig-ptrace-VRAM-access-crossin.patch b/common/recipes-kernel/linux/linux-yocto-4.14.71/0842-drm-amdgpu-Fix-non-contig-ptrace-VRAM-access-crossin.patch new file mode 100644 index 00000000..5d771e8a --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.14.71/0842-drm-amdgpu-Fix-non-contig-ptrace-VRAM-access-crossin.patch @@ -0,0 +1,33 @@ +From 2e34be59854020f8e0bb451588bda0eeb731dc20 Mon Sep 17 00:00:00 2001 +From: Felix Kuehling <Felix.Kuehling@amd.com> +Date: Thu, 22 Jun 2017 15:04:01 -0400 +Subject: [PATCH 0842/4131] drm/amdgpu: Fix non-contig ptrace VRAM access + crossing nodes + +Fix ptrace VRAM access when crossing non-contiguous VRAM node +boundaries. + +Change-Id: I9c876145d0087a78fc17f0a76b9ac47f55a4f35b +Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com> +--- + drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 4 ++++ + 1 file changed, 4 insertions(+) + +diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +index 57904b9..94e7611 100644 +--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c ++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +@@ -1617,6 +1617,10 @@ static int amdgpu_ttm_bo_access_vram(struct amdgpu_bo *abo, + buf = (uint8_t *)buf + bytes; + pos += bytes; + len -= bytes; ++ if (pos >= (nodes->start + nodes->size) << PAGE_SHIFT) { ++ ++nodes; ++ pos = (nodes->start << PAGE_SHIFT); ++ } + } + + return result; +-- +2.7.4 + |