diff options
| author | Hawking Zhang <Hawking.Zhang@amd.com> | 2019-03-07 10:52:43 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2019-03-19 15:36:51 -0500 |
| commit | 8b6da23f511f8d85eb5330700b45b3f5c779ffdc (patch) | |
| tree | 2ac50c6eb4d35fabc097a97b8c3b191fc1a5943f /drivers/gpu/drm/amd/amdgpu | |
| parent | 511c4348cf7bb4d224e944e6d84a5bf8edacbfef (diff) | |
drm/amdgpu: add atomfirmware helper function to query sram ecc caps
sram ecc capability could be get from firmware_capability field in firmwareinfo table
Signed-off-by: Hawking Zhang <Hawking.Zhang@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')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c | 30 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h | 1 |
2 files changed, 31 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c index 742af0ed94d7..f96d75c6e099 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c @@ -271,6 +271,36 @@ union firmware_info { struct atom_firmware_info_v3_1 v31; }; +/* + * Return true if vbios supports sram ecc or false if not + */ +bool amdgpu_atomfirmware_sram_ecc_supported(struct amdgpu_device *adev) +{ + struct amdgpu_mode_info *mode_info = &adev->mode_info; + int index; + u16 data_offset, size; + union firmware_info *firmware_info; + u8 frev, crev; + bool sram_ecc_supported = false; + + index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1, + firmwareinfo); + + if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, + index, &size, &frev, &crev, &data_offset)) { + /* support firmware_info 3.1 + */ + if ((frev == 3 && crev >=1) || (frev > 3)) { + firmware_info = (union firmware_info *) + (mode_info->atom_context->bios + data_offset); + sram_ecc_supported = + (le32_to_cpu(firmware_info->v31.firmware_capability) & + ATOM_FIRMWARE_CAP_SRAM_ECC) ? true : false; + } + } + + return sram_ecc_supported; +} + union smu_info { struct atom_smu_info_v3_1 v31; }; diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h index 6da079e60619..5ec6f92f353c 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h @@ -34,5 +34,6 @@ int amdgpu_atomfirmware_get_vram_type(struct amdgpu_device *adev); int amdgpu_atomfirmware_get_clock_info(struct amdgpu_device *adev); int amdgpu_atomfirmware_get_gfx_info(struct amdgpu_device *adev); bool amdgpu_atomfirmware_mem_ecc_supported(struct amdgpu_device *adev); +bool amdgpu_atomfirmware_sram_ecc_supported(struct amdgpu_device *adev); #endif |