diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/1901-drm-amd-display-Fill-plane-attrs-only-for-valid-pxl-.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/1901-drm-amd-display-Fill-plane-attrs-only-for-valid-pxl-.patch | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/1901-drm-amd-display-Fill-plane-attrs-only-for-valid-pxl-.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/1901-drm-amd-display-Fill-plane-attrs-only-for-valid-pxl-.patch new file mode 100644 index 00000000..cc9c3f1f --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-4.19.8/1901-drm-amd-display-Fill-plane-attrs-only-for-valid-pxl-.patch @@ -0,0 +1,38 @@ +From 4e99f0e94871abbe926a1c1a137abdaf20264d50 Mon Sep 17 00:00:00 2001 +From: Roman Li <Roman.Li@amd.com> +Date: Thu, 25 Apr 2019 11:02:30 -0400 +Subject: [PATCH 1901/2940] drm/amd/display: Fill plane attrs only for valid + pxl format + +[Why] +In fill_plane_buffer_attributes() we calculate chroma/luma +assuming that the surface_pixel_format is always valid. +If it's not the case, there's a risk of divide by zero error. + +[How] +Check if format valid before calculating pixel format attributes + +Change-Id: I6bbc31b03ef35a3b8f8469ab2a633895f2590cef +Signed-off-by: Roman Li <Roman.Li@amd.com> +Reviewed-by: David Francis <David.Francis@amd.com> +Acked-by: Bhawanpreet Lakha <Bhawanpreet Lakha@amd.com> +--- + drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +index b1197f55a35d..834adb729c6d 100644 +--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c ++++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c +@@ -2672,7 +2672,7 @@ fill_plane_buffer_attributes(struct amdgpu_device *adev, + address->type = PLN_ADDR_TYPE_GRAPHICS; + address->grph.addr.low_part = lower_32_bits(afb->address); + address->grph.addr.high_part = upper_32_bits(afb->address); +- } else { ++ } else if (format < SURFACE_PIXEL_FORMAT_INVALID) { + uint64_t chroma_addr = afb->address + fb->offsets[1]; + + plane_size->video.luma_size.x = 0; +-- +2.17.1 + |