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drm/amdgpu: extend profiling mode.

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in profiling mode, powerplay will fix power state
as stable as possible.and disable gfx cg and LBPW feature.

profile_standard: as a prerequisite, ensure power and thermal
sustainable, set clocks ratio as close to the highest clock
ratio as possible.
profile_min_sclk: fix mclk as profile_normal, set lowest sclk
profile_min_mclk: fix sclk as profile_normal, set lowest mclk
profile_peak: set highest sclk and mclk, power and thermal not
sustainable
profile_exit: exit profile mode. enable gfx cg/lbpw feature.

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>
This commit is contained in:
Rex Zhu
2017-01-06 13:32:49 +08:00
committed by Alex Deucher
parent 7f61bed0c4
commit 570272d229
6 changed files with 155 additions and 27 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
drivers/gpu/drm/amd/amdgpu/amdgpu_pm.c
View File

@@ -142,12 +142,15 @@ static ssize_t amdgpu_get_dpm_forced_performance_level(struct device *dev,
level = amdgpu_dpm_get_performance_level(adev);
return snprintf(buf, PAGE_SIZE, "%s\n",
(level & (AMD_DPM_FORCED_LEVEL_AUTO) ? "auto" :
(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"));
(level == AMD_DPM_FORCED_LEVEL_AUTO) ? "auto" :
(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_PROFILE_STANDARD) ? "profile_standard" :
(level == AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK) ? "profile_min_sclk" :
(level == AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK) ? "profile_min_mclk" :
(level == AMD_DPM_FORCED_LEVEL_PROFILE_PEAK) ? "profile_peak" :
"unknown");
}
static ssize_t amdgpu_set_dpm_forced_performance_level(struct device *dev,
@@ -176,9 +179,17 @@ 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 {
} else if (strncmp("profile_exit", buf, strlen("profile_exit")) == 0) {
level = AMD_DPM_FORCED_LEVEL_PROFILE_EXIT;
} else if (strncmp("profile_standard", buf, strlen("profile_standard")) == 0) {
level = AMD_DPM_FORCED_LEVEL_PROFILE_STANDARD;
} else if (strncmp("profile_min_sclk", buf, strlen("profile_min_sclk")) == 0) {
level = AMD_DPM_FORCED_LEVEL_PROFILE_MIN_SCLK;
} else if (strncmp("profile_min_mclk", buf, strlen("profile_min_mclk")) == 0) {
level = AMD_DPM_FORCED_LEVEL_PROFILE_MIN_MCLK;
} else if (strncmp("profile_peak", buf, strlen("profile_peak")) == 0) {
level = AMD_DPM_FORCED_LEVEL_PROFILE_PEAK;
} else {
count = -EINVAL;
goto fail;
}
@@ -186,14 +197,6 @@ static ssize_t amdgpu_set_dpm_forced_performance_level(struct device *dev,
if (current_level == level)
return count;
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 {
@@ -210,6 +213,7 @@ static ssize_t amdgpu_set_dpm_forced_performance_level(struct device *dev,
adev->pm.dpm.forced_level = level;
mutex_unlock(&adev->pm.mutex);
}
fail:
return count;
}