diff options
| author | Kevin Wang <kevin1.wang@amd.com> | 2019-12-26 14:41:22 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-01-07 11:57:41 -0500 |
| commit | e4b613e0b27232cf6d31c385493159cabbc78884 (patch) | |
| tree | 913f23255589cc0558c7de3fcc714f2845d80677 /drivers/gpu/drm/amd | |
| parent | b36a62321d2e5cad1236167a1e0aba71296fa6a9 (diff) | |
drm/amdgpu/smu: add helper function smu_get_dpm_level_range() for smu driver
this function can help smu driver to query dpm level clock range from
smu firmware.
Signed-off-by: Kevin Wang <kevin1.wang@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')
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 29 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/powerplay/navi10_ppt.c | 12 |
3 files changed, 33 insertions, 10 deletions
diff --git a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c index e51cf5a151e8..dcc4ccd5c44e 100644 --- a/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c +++ b/drivers/gpu/drm/amd/powerplay/amdgpu_smu.c @@ -356,6 +356,35 @@ int smu_get_dpm_level_count(struct smu_context *smu, enum smu_clk_type clk_type, return smu_get_dpm_freq_by_index(smu, clk_type, 0xff, value); } +int smu_get_dpm_level_range(struct smu_context *smu, enum smu_clk_type clk_type, + uint32_t *min_value, uint32_t *max_value) +{ + int ret = 0; + uint32_t level_count = 0; + + if (!min_value && !max_value) + return -EINVAL; + + if (min_value) { + /* by default, level 0 clock value as min value */ + ret = smu_get_dpm_freq_by_index(smu, clk_type, 0, min_value); + if (ret) + return ret; + } + + if (max_value) { + ret = smu_get_dpm_level_count(smu, clk_type, &level_count); + if (ret) + return ret; + + ret = smu_get_dpm_freq_by_index(smu, clk_type, level_count - 1, max_value); + if (ret) + return ret; + } + + return ret; +} + bool smu_clk_dpm_is_enabled(struct smu_context *smu, enum smu_clk_type clk_type) { enum smu_feature_mask feature_id = 0; diff --git a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h index 541cfde289ea..5ddadd2d90cf 100644 --- a/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h +++ b/drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h @@ -697,6 +697,8 @@ int smu_set_soft_freq_range(struct smu_context *smu, enum smu_clk_type clk_type, uint32_t min, uint32_t max); int smu_set_hard_freq_range(struct smu_context *smu, enum smu_clk_type clk_type, uint32_t min, uint32_t max); +int smu_get_dpm_level_range(struct smu_context *smu, enum smu_clk_type clk_type, + uint32_t *min_value, uint32_t *max_value); enum amd_dpm_forced_level smu_get_performance_level(struct smu_context *smu); int smu_force_performance_level(struct smu_context *smu, enum amd_dpm_forced_level level); int smu_set_display_count(struct smu_context *smu, uint32_t count); diff --git a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c index e7ab8caee222..5cca52c34b42 100644 --- a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c +++ b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c @@ -1587,7 +1587,6 @@ static int navi10_set_peak_clock_by_device(struct smu_context *smu) struct amdgpu_device *adev = smu->adev; int ret = 0; uint32_t sclk_freq = 0, uclk_freq = 0; - uint32_t sclk_level = 0, uclk_level = 0; switch (adev->asic_type) { case CHIP_NAVI10: @@ -1632,19 +1631,12 @@ static int navi10_set_peak_clock_by_device(struct smu_context *smu) sclk_freq = NAVI12_UMD_PSTATE_PEAK_GFXCLK; break; default: - ret = smu_get_dpm_level_count(smu, SMU_SCLK, &sclk_level); + ret = smu_get_dpm_level_range(smu, SMU_SCLK, NULL, &sclk_freq); if (ret) return ret; - ret = smu_get_dpm_freq_by_index(smu, SMU_SCLK, sclk_level - 1, &sclk_freq); - if (ret) - return ret; - break; } - ret = smu_get_dpm_level_count(smu, SMU_UCLK, &uclk_level); - if (ret) - return ret; - ret = smu_get_dpm_freq_by_index(smu, SMU_UCLK, uclk_level - 1, &uclk_freq); + ret = smu_get_dpm_level_range(smu, SMU_UCLK, NULL, &uclk_freq); if (ret) return ret; |