[PATCH 1/3] drm/amdgpu/pm: add workload profile pause helper

[Alex Deucher]

To be used for display idle optimizations when
we want to pause non-default profiles.

Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 .../gpu/drm/amd/include/kgd_pp_interface.h    |  1 +
 drivers/gpu/drm/amd/pm/amdgpu_dpm.c           | 19 +++++++++++++++++++
 drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h       |  2 ++
 3 files changed, 22 insertions(+)

diff --git a/drivers/gpu/drm/amd/include/kgd_pp_interface.h b/drivers/gpu/drm/amd/include/kgd_pp_interface.h
index 2a9606118d899..21dc956b5f35d 100644
--- a/drivers/gpu/drm/amd/include/kgd_pp_interface.h
+++ b/drivers/gpu/drm/amd/include/kgd_pp_interface.h
@@ -429,6 +429,7 @@ struct amd_pm_funcs {
 	int (*set_pp_table)(void *handle, const char *buf, size_t size);
 	void (*debugfs_print_current_performance_level)(void *handle, struct seq_file *m);
 	int (*switch_power_profile)(void *handle, enum PP_SMC_POWER_PROFILE type, bool en);
+	int (*pause_power_profile)(void *handle, bool pause);
 /* export to amdgpu */
 	struct amd_vce_state *(*get_vce_clock_state)(void *handle, u32 idx);
 	int (*dispatch_tasks)(void *handle, enum amd_pp_task task_id,
diff --git a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
index 0bcb82b2f3ae0..0e4d243641c8f 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
@@ -381,6 +381,25 @@ int amdgpu_dpm_switch_power_profile(struct amdgpu_device *adev,
 	return ret;
 }
 
+int amdgpu_dpm_pause_power_profile(struct amdgpu_device *adev,
+				   bool pause)
+{
+	const struct amd_pm_funcs *pp_funcs = adev->powerplay.pp_funcs;
+	int ret = 0;
+
+	if (amdgpu_sriov_vf(adev))
+		return 0;
+
+	if (pp_funcs && pp_funcs->pause_power_profile) {
+		mutex_lock(&adev->pm.mutex);
+		ret = pp_funcs->pause_power_profile(
+			adev->powerplay.pp_handle, pause);
+		mutex_unlock(&adev->pm.mutex);
+	}
+
+	return ret;
+}
+
 int amdgpu_dpm_set_xgmi_pstate(struct amdgpu_device *adev,
 			       uint32_t pstate)
 {
diff --git a/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h b/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
index 72565fab60673..df8850a01ea6b 100644
--- a/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
+++ b/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
@@ -410,6 +410,8 @@ int amdgpu_dpm_set_xgmi_pstate(struct amdgpu_device *adev,
 int amdgpu_dpm_switch_power_profile(struct amdgpu_device *adev,
 				    enum PP_SMC_POWER_PROFILE type,
 				    bool en);
+int amdgpu_dpm_pause_power_profile(struct amdgpu_device *adev,
+				   bool pause);
 
 int amdgpu_dpm_baco_reset(struct amdgpu_device *adev);
 
-- 
2.49.0