diff options
| author | Lijo Lazar <lijo.lazar@amd.com> | 2021-02-04 18:51:32 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-03-23 22:59:13 -0400 |
| commit | 65ec7c08c17141a7798418e48dd614ca8fe429f1 (patch) | |
| tree | 09d757af93acb7f0c5c2ee391153f768cba6e48a /drivers/gpu/drm | |
| parent | 2bb8ac85683d9cb9702721d0df8cbf803d114901 (diff) | |
drm/amd/pm: Enable user min/max gfxclk on aldebaran
Aldebaran has fine grained DPM for GFXCLK. Instead of a discrete level,
user can specify a min/max range of GFXCLK for any profiling/tuning
purpose.This option is available only in manual performance level mode.
Select "manual" as power_dpm_force_performance_level and specify the
min/max range using pp_dpm_sclk sysfs node. User cannot specify a min/max
range outside of the default min/max range of the ASIC. If specified
outside the range, values will be bound by the default min/max range.
Ex: To use gfxclk min = 600MHz and max = 900MHz
echo manual > /sys/bus/pci/devices/.../power_dpm_force_performance_level
echo min 600 max 900 > /sys/bus/pci/devices/.../pp_dpm_sclk
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c index 7bf8316b9816..befc117a25ef 100644 --- a/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c +++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/aldebaran_ppt.c @@ -1143,9 +1143,16 @@ static int aldebaran_set_soft_freq_limited_range(struct smu_context *smu, if (clk_type != SMU_GFXCLK && clk_type != SMU_SCLK) return -EINVAL; - if (smu_dpm->dpm_level != AMD_DPM_FORCED_LEVEL_PERF_DETERMINISM) + if ((smu_dpm->dpm_level != AMD_DPM_FORCED_LEVEL_MANUAL) + && (smu_dpm->dpm_level != AMD_DPM_FORCED_LEVEL_PERF_DETERMINISM)) return -EINVAL; + if (smu_dpm->dpm_level == AMD_DPM_FORCED_LEVEL_MANUAL) { + min_clk = max(min, dpm_context->dpm_tables.gfx_table.min); + max_clk = min(max, dpm_context->dpm_tables.gfx_table.max); + return smu_v13_0_set_soft_freq_limited_range(smu, SMU_GFXCLK, min_clk, max_clk); + } + if (smu_dpm->dpm_level == AMD_DPM_FORCED_LEVEL_PERF_DETERMINISM) { if (!max || (max < dpm_context->dpm_tables.gfx_table.min) || (max > dpm_context->dpm_tables.gfx_table.max)) { |