diff options
Diffstat (limited to 'common/recipes-kernel/linux/linux-yocto-4.19.8/1601-drm-amdgpu-Clear-VRAM-for-DRM-dumb_create-buffers.patch')
| -rw-r--r-- | common/recipes-kernel/linux/linux-yocto-4.19.8/1601-drm-amdgpu-Clear-VRAM-for-DRM-dumb_create-buffers.patch | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/common/recipes-kernel/linux/linux-yocto-4.19.8/1601-drm-amdgpu-Clear-VRAM-for-DRM-dumb_create-buffers.patch b/common/recipes-kernel/linux/linux-yocto-4.19.8/1601-drm-amdgpu-Clear-VRAM-for-DRM-dumb_create-buffers.patch new file mode 100644 index 00000000..71084139 --- /dev/null +++ b/common/recipes-kernel/linux/linux-yocto-4.19.8/1601-drm-amdgpu-Clear-VRAM-for-DRM-dumb_create-buffers.patch @@ -0,0 +1,35 @@ +From c23032bbd04a383eba4703cd13846224adb97059 Mon Sep 17 00:00:00 2001 +From: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> +Date: Fri, 8 Mar 2019 10:38:16 -0500 +Subject: [PATCH 1601/2940] drm/amdgpu: Clear VRAM for DRM dumb_create buffers + +The dumb_create API isn't intended for high performance rendering +and it's more useful for userspace (ie. IGT) to have them precleared. + +The bonus here is that we also won't needlessly leak whatever was +previously in VRAM, but it also probably wasn't sensitive if it was +going through this API. + +Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> +Reviewed-by: Alex Deucher <alexander.deucher@amd.com> +--- + drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 3 ++- + 1 file changed, 2 insertions(+), 1 deletion(-) + +diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c +index f79aad64fde3..72242b121d2b 100644 +--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c ++++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c +@@ -831,7 +831,8 @@ int amdgpu_mode_dumb_create(struct drm_file *file_priv, + domain = amdgpu_bo_get_preferred_pin_domain(adev, + amdgpu_display_supported_domains(adev)); + r = amdgpu_gem_object_create(adev, args->size, 0, domain, +- AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED, ++ AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED | ++ AMDGPU_GEM_CREATE_VRAM_CLEARED, + ttm_bo_type_device, NULL, &gobj); + if (r) + return -ENOMEM; +-- +2.17.1 + |