diff options
| author | Rex Zhu <Rex.Zhu@amd.com> | 2016-12-23 15:24:37 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2017-01-27 11:12:57 -0500 |
| commit | 3bd58979648fd105258934fb9f0fea1d73341d08 (patch) | |
| tree | c66bbd3e2ae6e137c998d4c8bff55b864b808850 /drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | |
| parent | 9d273495e691f9473db6b2ae2da41515d53a70e9 (diff) | |
drm/amd/powerplay: add profiling mode in dpm level
In some case, App need to run under max stable clock.
so export profiling mode: GFX CG was disabled.
and user can select the max stable clock of the device.
Signed-off-by: Rex Zhu <Rex.Zhu@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/amdgpu_pm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c index ccf50b8b854b..0345fbbfff4e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c @@ -124,6 +124,7 @@ static ssize_t amdgpu_get_dpm_forced_performance_level(struct device *dev, (level & AMD_DPM_FORCED_LEVEL_LOW) ? "low" : (level & AMD_DPM_FORCED_LEVEL_HIGH) ? "high" : (level & AMD_DPM_FORCED_LEVEL_MANUAL) ? "manual" : + (level & AMD_DPM_FORCED_LEVEL_PROFILING) ? "profiling" : "unknown")); } @@ -135,6 +136,7 @@ static ssize_t amdgpu_set_dpm_forced_performance_level(struct device *dev, struct drm_device *ddev = dev_get_drvdata(dev); struct amdgpu_device *adev = ddev->dev_private; enum amd_dpm_forced_level level; + enum amd_dpm_forced_level current_level; int ret = 0; /* Can't force performance level when the card is off */ @@ -142,6 +144,8 @@ static ssize_t amdgpu_set_dpm_forced_performance_level(struct device *dev, (ddev->switch_power_state != DRM_SWITCH_POWER_ON)) return -EINVAL; + current_level = amdgpu_dpm_get_performance_level(adev); + if (strncmp("low", buf, strlen("low")) == 0) { level = AMD_DPM_FORCED_LEVEL_LOW; } else if (strncmp("high", buf, strlen("high")) == 0) { @@ -150,11 +154,24 @@ static ssize_t amdgpu_set_dpm_forced_performance_level(struct device *dev, level = AMD_DPM_FORCED_LEVEL_AUTO; } else if (strncmp("manual", buf, strlen("manual")) == 0) { level = AMD_DPM_FORCED_LEVEL_MANUAL; + } else if (strncmp("profile", buf, strlen("profile")) == 0) { + level = AMD_DPM_FORCED_LEVEL_PROFILING; } else { count = -EINVAL; goto fail; } + if (current_level == level) + return 0; + + if (level == AMD_DPM_FORCED_LEVEL_PROFILING) + amdgpu_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_GFX, + AMD_CG_STATE_UNGATE); + else if (level != AMD_DPM_FORCED_LEVEL_PROFILING && + current_level == AMD_DPM_FORCED_LEVEL_PROFILING) + amdgpu_set_clockgating_state(adev, AMD_IP_BLOCK_TYPE_GFX, + AMD_CG_STATE_GATE); + if (adev->pp_enabled) amdgpu_dpm_force_performance_level(adev, level); else { |