diff options
author | Alex Deucher <alexander.deucher@amd.com> | 2017-07-10 10:39:09 -0400 |
---|---|---|
committer | Alex Deucher <alexander.deucher@amd.com> | 2017-07-14 11:06:38 -0400 |
commit | 79077ee1edceb95d8c0215a9af5e8373232672df (patch) | |
tree | bdd0bd533b8f26681e38e05fd70e33fbdb44643a /drivers/gpu/drm | |
parent | 9f57f7b47d4c9559ae85666eeaf9ffd150096574 (diff) |
drm/amdgpu: add get_clock_info for atomfirmware
The information has moved to different tables, notably
smu_info for core refclk and umc_info for mem refclk.
Acked-by: Chunming Zhou <david1.zhou@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c | 93 | ||||
-rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h | 1 |
2 files changed, 94 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c index a7d65f033883..f9ffe8ef0cd6 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c @@ -128,3 +128,96 @@ int amdgpu_atomfirmware_get_vram_width(struct amdgpu_device *adev) return 0; } + +union firmware_info { + struct atom_firmware_info_v3_1 v31; +}; + +union smu_info { + struct atom_smu_info_v3_1 v31; +}; + +union umc_info { + struct atom_umc_info_v3_1 v31; +}; + +int amdgpu_atomfirmware_get_clock_info(struct amdgpu_device *adev) +{ + struct amdgpu_mode_info *mode_info = &adev->mode_info; + struct amdgpu_pll *spll = &adev->clock.spll; + struct amdgpu_pll *mpll = &adev->clock.mpll; + uint8_t frev, crev; + uint16_t data_offset; + int ret = -EINVAL, index; + + index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1, + firmwareinfo); + if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL, + &frev, &crev, &data_offset)) { + union firmware_info *firmware_info = + (union firmware_info *)(mode_info->atom_context->bios + + data_offset); + + adev->clock.default_sclk = + le32_to_cpu(firmware_info->v31.bootup_sclk_in10khz); + adev->clock.default_mclk = + le32_to_cpu(firmware_info->v31.bootup_mclk_in10khz); + + adev->pm.current_sclk = adev->clock.default_sclk; + adev->pm.current_mclk = adev->clock.default_mclk; + + /* not technically a clock, but... */ + adev->mode_info.firmware_flags = + le32_to_cpu(firmware_info->v31.firmware_capability); + + ret = 0; + } + + index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1, + smu_info); + if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL, + &frev, &crev, &data_offset)) { + union smu_info *smu_info = + (union smu_info *)(mode_info->atom_context->bios + + data_offset); + + /* system clock */ + spll->reference_freq = le32_to_cpu(smu_info->v31.core_refclk_10khz); + + spll->reference_div = 0; + spll->min_post_div = 1; + spll->max_post_div = 1; + spll->min_ref_div = 2; + spll->max_ref_div = 0xff; + spll->min_feedback_div = 4; + spll->max_feedback_div = 0xff; + spll->best_vco = 0; + + ret = 0; + } + + index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1, + umc_info); + if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL, + &frev, &crev, &data_offset)) { + union umc_info *umc_info = + (union umc_info *)(mode_info->atom_context->bios + + data_offset); + + /* memory clock */ + mpll->reference_freq = le32_to_cpu(umc_info->v31.mem_refclk_10khz); + + mpll->reference_div = 0; + mpll->min_post_div = 1; + mpll->max_post_div = 1; + mpll->min_ref_div = 2; + mpll->max_ref_div = 0xff; + mpll->min_feedback_div = 4; + mpll->max_feedback_div = 0xff; + mpll->best_vco = 0; + + ret = 0; + } + + return ret; +} diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h index cedafbb9183e..288b97e54347 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h @@ -28,5 +28,6 @@ bool amdgpu_atomfirmware_gpu_supports_virtualization(struct amdgpu_device *adev) void amdgpu_atomfirmware_scratch_regs_init(struct amdgpu_device *adev); int amdgpu_atomfirmware_allocate_fb_scratch(struct amdgpu_device *adev); int amdgpu_atomfirmware_get_vram_width(struct amdgpu_device *adev); +int amdgpu_atomfirmware_get_clock_info(struct amdgpu_device *adev); #endif |