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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>
This commit is contained in:
Piotr Redlewski 2017-11-10 19:28:01 +01:00 committed by Alex Deucher
parent fa2123dbcc
commit c1fe75c9e4
5 changed files with 8 additions and 4 deletions
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4
drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.h
View File

@ -31,6 +31,10 @@
#define AMDGPU_UVD_SESSION_SIZE (50*1024)
#define AMDGPU_UVD_FIRMWARE_OFFSET 256
#define AMDGPU_UVD_FIRMWARE_SIZE(adev) \
(AMDGPU_GPU_PAGE_ALIGN(le32_to_cpu(((const struct common_firmware_header *)(adev)->uvd.fw->data)->ucode_size_bytes) + \
8) - AMDGPU_UVD_FIRMWARE_OFFSET)
struct amdgpu_uvd {
struct amdgpu_bo *vcpu_bo;
void *cpu_addr;

2
drivers/gpu/drm/amd/amdgpu/uvd_v4_2.c
View File

@ -563,7 +563,7 @@ static void uvd_v4_2_mc_resume(struct amdgpu_device *adev)
/* programm the VCPU memory controller bits 0-27 */
addr = (adev->uvd.gpu_addr + AMDGPU_UVD_FIRMWARE_OFFSET) >> 3;
size = AMDGPU_GPU_PAGE_ALIGN(adev->uvd.fw->size + 4) >> 3;
size = AMDGPU_UVD_FIRMWARE_SIZE(adev) >> 3;
WREG32(mmUVD_VCPU_CACHE_OFFSET0, addr);
WREG32(mmUVD_VCPU_CACHE_SIZE0, size);

2
drivers/gpu/drm/amd/amdgpu/uvd_v5_0.c
View File

@ -258,7 +258,7 @@ static void uvd_v5_0_mc_resume(struct amdgpu_device *adev)
upper_32_bits(adev->uvd.gpu_addr));
offset = AMDGPU_UVD_FIRMWARE_OFFSET;
size = AMDGPU_GPU_PAGE_ALIGN(adev->uvd.fw->size + 4);
size = AMDGPU_UVD_FIRMWARE_SIZE(adev);
WREG32(mmUVD_VCPU_CACHE_OFFSET0, offset >> 3);
WREG32(mmUVD_VCPU_CACHE_SIZE0, size);

2
drivers/gpu/drm/amd/amdgpu/uvd_v6_0.c
View File

@ -603,7 +603,7 @@ static void uvd_v6_0_mc_resume(struct amdgpu_device *adev)
upper_32_bits(adev->uvd.gpu_addr));
offset = AMDGPU_UVD_FIRMWARE_OFFSET;
size = AMDGPU_GPU_PAGE_ALIGN(adev->uvd.fw->size + 4);
size = AMDGPU_UVD_FIRMWARE_SIZE(adev);
WREG32(mmUVD_VCPU_CACHE_OFFSET0, offset >> 3);
WREG32(mmUVD_VCPU_CACHE_SIZE0, size);

2
drivers/gpu/drm/amd/amdgpu/uvd_v7_0.c
View File

@ -616,7 +616,7 @@ static int uvd_v7_0_resume(void *handle)
*/
static void uvd_v7_0_mc_resume(struct amdgpu_device *adev)
{
uint32_t size = AMDGPU_GPU_PAGE_ALIGN(adev->uvd.fw->size + 4);
uint32_t size = AMDGPU_UVD_FIRMWARE_SIZE(adev);
uint32_t offset;
if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP) {