diff options
author | André Almeida <andrealmeid@igalia.com> | 2022-08-11 02:28:55 +0300 |
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committer | Alex Deucher <alexander.deucher@amd.com> | 2022-08-17 01:17:31 +0300 |
commit | 0ad7347a64ac4baec1786810709eebedc5f823d5 (patch) | |
tree | 3a01d9b4e40ba1aa6163454f10174f53f1bb721f /drivers/gpu/drm/amd/pm/amdgpu_dpm.c | |
parent | 30f2d2e49e826c2dda35153d2e108d06f6d7d9dc (diff) | |
download | linux-0ad7347a64ac4baec1786810709eebedc5f823d5.tar.xz |
drm/amd: Add detailed GFXOFF stats to debugfs
Add debugfs interface to log GFXOFF statistics:
- Read amdgpu_gfxoff_count to get the total GFXOFF entry count at the
time of query since system power-up
- Write 1 to amdgpu_gfxoff_residency to start logging, and 0 to stop.
Read it to get average GFXOFF residency % multiplied by 100
during the last logging interval.
Both features are designed to be keep the values persistent between
suspends.
Signed-off-by: André Almeida <andrealmeid@igalia.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/pm/amdgpu_dpm.c')
-rw-r--r-- | drivers/gpu/drm/amd/pm/amdgpu_dpm.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c index 956b6ce81c84..1b300c569faf 100644 --- a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c +++ b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c @@ -668,6 +668,51 @@ int amdgpu_dpm_wait_for_event(struct amdgpu_device *adev, return ret; } +int amdgpu_dpm_set_residency_gfxoff(struct amdgpu_device *adev, bool value) +{ + struct smu_context *smu = adev->powerplay.pp_handle; + int ret = 0; + + if (!is_support_sw_smu(adev)) + return -EOPNOTSUPP; + + mutex_lock(&adev->pm.mutex); + ret = smu_set_residency_gfxoff(smu, value); + mutex_unlock(&adev->pm.mutex); + + return ret; +} + +int amdgpu_dpm_get_residency_gfxoff(struct amdgpu_device *adev, u32 *value) +{ + struct smu_context *smu = adev->powerplay.pp_handle; + int ret = 0; + + if (!is_support_sw_smu(adev)) + return -EOPNOTSUPP; + + mutex_lock(&adev->pm.mutex); + ret = smu_get_residency_gfxoff(smu, value); + mutex_unlock(&adev->pm.mutex); + + return ret; +} + +int amdgpu_dpm_get_entrycount_gfxoff(struct amdgpu_device *adev, u64 *value) +{ + struct smu_context *smu = adev->powerplay.pp_handle; + int ret = 0; + + if (!is_support_sw_smu(adev)) + return -EOPNOTSUPP; + + mutex_lock(&adev->pm.mutex); + ret = smu_get_entrycount_gfxoff(smu, value); + mutex_unlock(&adev->pm.mutex); + + return ret; +} + int amdgpu_dpm_get_status_gfxoff(struct amdgpu_device *adev, uint32_t *value) { struct smu_context *smu = adev->powerplay.pp_handle; |