[PATCH 4/4] drm/amd/pm: add gfx_state_change_set() for rn gfx power switch

[Prike Liang]

The gfx_state_change_set() funtion can support set GFX power
change status to D0/D3.

Signed-off-by: Prike Liang <Prike.Liang at amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c         | 18 +++++++++---------
 drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h         |  2 ++
 drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c       | 12 ++++++++++++
 drivers/gpu/drm/amd/pm/swsmu/smu12/renoir_ppt.c |  7 +++++++
 4 files changed, 30 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
index 380dd3a..cd2c676 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c
@@ -828,14 +828,14 @@ int amdgpu_gfx_get_num_kcq(struct amdgpu_device *adev)
 
 void amdgpu_gfx_state_change_set(struct amdgpu_device *adev, enum gfx_change_state state)
 {
-
-	mutex_lock(&adev->pm.mutex);
-
-	if (adev->powerplay.pp_funcs &&
-	    adev->powerplay.pp_funcs->gfx_state_change_set)
+	if (is_support_sw_smu(adev)) {
+		smu_gfx_state_change_set(&adev->smu, state);
+	} else {
+		mutex_lock(&adev->pm.mutex);
+		if (adev->powerplay.pp_funcs &&
+		    adev->powerplay.pp_funcs->gfx_state_change_set)
 			((adev)->powerplay.pp_funcs->gfx_state_change_set(
-					(adev)->powerplay.pp_handle, state));
-
-	mutex_unlock(&adev->pm.mutex);
-
+				(adev)->powerplay.pp_handle, state));
+		mutex_unlock(&adev->pm.mutex);
+	}
 }
diff --git a/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h
index 9724d6f..ae8ff7b 100644
--- a/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/pm/inc/amdgpu_smu.h
@@ -576,6 +576,7 @@ struct pptable_funcs {
 	int (*post_init)(struct smu_context *smu);
 	void (*interrupt_work)(struct smu_context *smu);
 	int (*gpo_control)(struct smu_context *smu, bool enablement);
+	int (*gfx_state_change_set)(struct smu_context *smu, uint32_t state);
 };
 
 typedef enum {
@@ -764,6 +765,7 @@ int smu_get_status_gfxoff(struct amdgpu_device *adev, uint32_t *value);
 ssize_t smu_sys_get_gpu_metrics(struct smu_context *smu, void **table);
 
 int smu_enable_mgpu_fan_boost(struct smu_context *smu);
+int smu_gfx_state_change_set(struct smu_context *smu, uint32_t state);
 
 #endif
 #endif
diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index 3999079..7b698c5 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -2529,3 +2529,15 @@ int smu_enable_mgpu_fan_boost(struct smu_context *smu)
 
 	return ret;
 }
+
+int smu_gfx_state_change_set(struct smu_context *smu, uint32_t state)
+{
+	int ret = 0;
+
+	mutex_lock(&smu->mutex);
+	if (smu->ppt_funcs->gfx_state_change_set)
+		ret = smu->ppt_funcs->gfx_state_change_set(smu, state);
+	mutex_unlock(&smu->mutex);
+
+	return ret;
+}
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu12/renoir_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu12/renoir_ppt.c
index 66c1026..46c44f0 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu12/renoir_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu12/renoir_ppt.c
@@ -1136,6 +1136,12 @@ static ssize_t renoir_get_gpu_metrics(struct smu_context *smu,
 	return sizeof(struct gpu_metrics_v2_0);
 }
 
+static int renoir_gfx_state_change_set(struct smu_context *smu, uint32_t state)
+{
+
+	return smu_cmn_send_smc_msg_with_param(smu, SMU_MSG_GpuChangeState, state, NULL);
+}
+
 static const struct pptable_funcs renoir_ppt_funcs = {
 	.set_power_state = NULL,
 	.print_clk_levels = renoir_print_clk_levels,
@@ -1171,6 +1177,7 @@ static const struct pptable_funcs renoir_ppt_funcs = {
 	.get_pp_feature_mask = smu_cmn_get_pp_feature_mask,
 	.set_pp_feature_mask = smu_cmn_set_pp_feature_mask,
 	.get_gpu_metrics = renoir_get_gpu_metrics,
+	.gfx_state_change_set = renoir_gfx_state_change_set,
 };
 
 void renoir_set_ppt_funcs(struct smu_context *smu)
-- 
2.7.4