]> git.baikalelectronics.ru Git - kernel.git/commit
drm/amd/amdgpu: fix UVD mc offsets
authorPiotr Redlewski <predlewski@gmail.com>
Fri, 10 Nov 2017 18:28:01 +0000 (19:28 +0100)
committerAlex Deucher <alexander.deucher@amd.com>
Wed, 6 Dec 2017 17:47:22 +0000 (12:47 -0500)
commitc1fe75c9e42c8c598a7fb810ecc4f7be258e700c
tree3193f160fa5826c52f23f64181dfd00c5925c7ec
parentfa2123dbccdc881fae02aaf8b05758db53d62955
drm/amd/amdgpu: fix UVD mc offsets

When UVD bo is created, its size is based on the information from firmware
header (ucode_size_bytes). The same value should be be used when programming
UVD mc controller offsets, otherwise it can happen that
(mmUVD_VCPU_CACHE_OFFSET2 + mmUVD_VCPU_CACHE_SIZE2) will point
AMDGPU_GPU_PAGE_SIZE bytes after the UVD bo end.

Second issue is that when programming the mmUVD_VCPU_CACHE_SIZE0 register,
AMDGPU_UVD_FIRMWARE_OFFSET should be taken into account. If it isn't,
(mmUVD_VCPU_CACHE_OFFSET2 + mmUVD_VCPU_CACHE_SIZE2) will always point
AMDGPU_UVD_FIRMWARE_OFFSET bytes after the UVD bo end.

v2: move firmware size calculation into macro definition
v3: align firmware size to the gpu page size

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Piotr Redlewski <predlewski@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.h
drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c
drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c
drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c