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drm/amdgpu: add get_clock_info for atomfirmware

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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>
This commit is contained in:
Alex Deucher 2017-07-10 10:39:09 -04:00
parent 9f57f7b47d
commit 79077ee1ed
2 changed files with 94 additions and 0 deletions
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93
drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.c
View File

@ -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;
}

1
drivers/gpu/drm/amd/amdgpu/amdgpu_atomfirmware.h
View File

@ -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