diff options
| author | David Francis <David.Francis@amd.com> | 2018-09-11 20:41:01 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-09-13 00:29:09 +0300 |
| commit | 01fcfc83fe07ae42af707c3217f533fb350d4c19 (patch) | |
| tree | 7ebe0342d2fdddbb5b07b45cb1d8952c0d42e88c /drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h | |
| parent | 240cd9a64226e013ac1a608ebf720a1813790196 (diff) | |
| download | linux-01fcfc83fe07ae42af707c3217f533fb350d4c19.tar.xz | |
drm/amd: Add ucode DMCU support
DMCU (Display Microcontroller Unit) is a GPU chip involved in
eDP features like Adaptive Backlight Modulation and Panel Self
Refresh.
DMCU has two pieces of firmware: the ERAM and the interrupt
vectors, which must be loaded seperately.
To this end, the DMCU firmware has a custom header and parsing
logic similar to MEC, to extract the two ucodes from a single
struct firmware.
Signed-off-by: David Francis <David.Francis@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h index b358e7519987..8f3f1117728c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ucode.h @@ -157,6 +157,13 @@ struct gpu_info_firmware_header_v1_0 { uint16_t version_minor; /* version */ }; +/* version_major=1, version_minor=0 */ +struct dmcu_firmware_header_v1_0 { + struct common_firmware_header header; + uint32_t intv_offset_bytes; /* interrupt vectors offset from end of header, in bytes */ + uint32_t intv_size_bytes; /* size of interrupt vectors, in bytes */ +}; + /* header is fixed size */ union amdgpu_firmware_header { struct common_firmware_header common; @@ -170,6 +177,7 @@ union amdgpu_firmware_header { struct sdma_firmware_header_v1_0 sdma; struct sdma_firmware_header_v1_1 sdma_v1_1; struct gpu_info_firmware_header_v1_0 gpu_info; + struct dmcu_firmware_header_v1_0 dmcu; uint8_t raw[0x100]; }; @@ -196,6 +204,8 @@ enum AMDGPU_UCODE_ID { AMDGPU_UCODE_ID_UVD1, AMDGPU_UCODE_ID_VCE, AMDGPU_UCODE_ID_VCN, + AMDGPU_UCODE_ID_DMCU_ERAM, + AMDGPU_UCODE_ID_DMCU_INTV, AMDGPU_UCODE_ID_MAXIMUM, }; |