drm/amd/pm: implement dpm vcn reset function

Implement VCN engine reset by sending MSG_ResetVCN
on smu 13.0.6.

v2: fix format for code and message

Reviewed-by: Sonny Jiang <sonny.jiang@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Ruili Ji <ruiliji2@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

7 files changed, 48 insertions, 1 deletions

diff --git a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
index 9f5768fa97dd..740ee2435f54 100644
--- a/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
+++ b/drivers/gpu/drm/amd/pm/amdgpu_dpm.c
@@ -789,6 +789,21 @@ int amdgpu_dpm_reset_sdma(struct amdgpu_device *adev, uint32_t inst_mask)
 	return ret;
 }
 
+int amdgpu_dpm_reset_vcn(struct amdgpu_device *adev, uint32_t inst_mask)
+{
+	struct smu_context *smu = adev->powerplay.pp_handle;
+	int ret;
+
+	if (!is_support_sw_smu(adev))
+		return -EOPNOTSUPP;
+
+	mutex_lock(&adev->pm.mutex);
+	ret = smu_reset_vcn(smu, inst_mask);
+	mutex_unlock(&adev->pm.mutex);
+
+	return ret;
+}
+
 int amdgpu_dpm_get_dpm_freq_range(struct amdgpu_device *adev,
 				  enum pp_clock_type type,
 				  uint32_t *min,
diff --git a/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h b/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
index 747019ed2bf5..4445d54f3322 100644
--- a/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
+++ b/drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h
@@ -607,5 +607,6 @@ ssize_t amdgpu_dpm_get_pm_policy_info(struct amdgpu_device *adev,
 				      enum pp_pm_policy p_type, char *buf);
 int amdgpu_dpm_reset_sdma(struct amdgpu_device *adev, uint32_t inst_mask);
 bool amdgpu_dpm_reset_sdma_is_supported(struct amdgpu_device *adev);
+int amdgpu_dpm_reset_vcn(struct amdgpu_device *adev, uint32_t inst_mask);
 
 #endif
diff --git a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
index a01b6244d99c..1da9e1287d2e 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c
@@ -3967,3 +3967,11 @@ int smu_reset_sdma(struct smu_context *smu, uint32_t inst_mask)
 
 	return ret;
 }
+
+int smu_reset_vcn(struct smu_context *smu, uint32_t inst_mask)
+{
+	if (smu->ppt_funcs && smu->ppt_funcs->dpm_reset_vcn)
+		smu->ppt_funcs->dpm_reset_vcn(smu, inst_mask);
+
+	return 0;
+}
diff --git a/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h b/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h
index 27cecf9688cc..ae89801adeb8 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h
+++ b/drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h
@@ -1397,6 +1397,11 @@ struct pptable_funcs {
 	bool (*reset_sdma_is_supported)(struct smu_context *smu);
 
 	/**
+	 * @reset_vcn: message SMU to soft reset vcn instance.
+	 */
+	int (*dpm_reset_vcn)(struct smu_context *smu, uint32_t inst_mask);
+
+	/**
 	 * @get_ecc_table:  message SMU to get ECC INFO table.
 	 */
 	ssize_t (*get_ecc_info)(struct smu_context *smu, void *table);
@@ -1659,6 +1664,7 @@ int smu_send_hbm_bad_channel_flag(struct smu_context *smu, uint32_t size);
 int smu_send_rma_reason(struct smu_context *smu);
 int smu_reset_sdma(struct smu_context *smu, uint32_t inst_mask);
 bool smu_reset_sdma_is_supported(struct smu_context *smu);
+int smu_reset_vcn(struct smu_context *smu, uint32_t inst_mask);
 int smu_set_pm_policy(struct smu_context *smu, enum pp_pm_policy p_type,
 		      int level);
 ssize_t smu_get_pm_policy_info(struct smu_context *smu,
diff --git a/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/smu_v13_0_6_ppsmc.h b/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/smu_v13_0_6_ppsmc.h
index 288b2576432b..348d06a3200c 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/smu_v13_0_6_ppsmc.h
+++ b/drivers/gpu/drm/amd/pm/swsmu/inc/pmfw_if/smu_v13_0_6_ppsmc.h
@@ -94,7 +94,8 @@
 #define PPSMC_MSG_RmaDueToBadPageThreshold          0x43
 #define PPSMC_MSG_SetThrottlingPolicy               0x44
 #define PPSMC_MSG_ResetSDMA                         0x4D
-#define PPSMC_Message_Count                         0x4E
+#define PPSMC_MSG_ResetVCN                          0x4E
+#define PPSMC_Message_Count                         0x4F
 
 //PPSMC Reset Types for driver msg argument
 #define PPSMC_RESET_TYPE_DRIVER_MODE_1_RESET        0x1
diff --git a/drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h b/drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h
index c9dee09395e3..eefdaa0b5df6 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h
+++ b/drivers/gpu/drm/amd/pm/swsmu/inc/smu_types.h
@@ -277,6 +277,7 @@
 	__SMU_DUMMY_MAP(MALLPowerController), \
 	__SMU_DUMMY_MAP(MALLPowerState), \
 	__SMU_DUMMY_MAP(ResetSDMA), \
+	__SMU_DUMMY_MAP(ResetVCN), \
 	__SMU_DUMMY_MAP(GetStaticMetricsTable),
 
 #undef __SMU_DUMMY_MAP
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c
index 8900c94bda0e..34ffaa0cfeeb 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c
@@ -176,6 +176,7 @@ static const struct cmn2asic_msg_mapping smu_v13_0_6_message_map[SMU_MSG_MAX_COU
 	MSG_MAP(RmaDueToBadPageThreshold,            PPSMC_MSG_RmaDueToBadPageThreshold,        0),
 	MSG_MAP(SetThrottlingPolicy,                 PPSMC_MSG_SetThrottlingPolicy,             0),
 	MSG_MAP(ResetSDMA,                           PPSMC_MSG_ResetSDMA,                       0),
+	MSG_MAP(ResetVCN,                            PPSMC_MSG_ResetVCN,                       0),
 };
 
 // clang-format on
@@ -2941,6 +2942,19 @@ static int smu_v13_0_6_reset_sdma(struct smu_context *smu, uint32_t inst_mask)
 	return ret;
 }
 
+static int smu_v13_0_6_reset_vcn(struct smu_context *smu, uint32_t inst_mask)
+{
+	int ret = 0;
+
+	ret = smu_cmn_send_smc_msg_with_param(smu, SMU_MSG_ResetVCN, inst_mask, NULL);
+	if (ret)
+		dev_err(smu->adev->dev,
+			"failed to send ResetVCN event with mask 0x%x\n",
+			inst_mask);
+	return ret;
+}
+
+
 static int mca_smu_set_debug_mode(struct amdgpu_device *adev, bool enable)
 {
 	struct smu_context *smu = adev->powerplay.pp_handle;
@@ -3615,6 +3629,7 @@ static const struct pptable_funcs smu_v13_0_6_ppt_funcs = {
 	.send_rma_reason = smu_v13_0_6_send_rma_reason,
 	.reset_sdma = smu_v13_0_6_reset_sdma,
 	.reset_sdma_is_supported = smu_v13_0_6_reset_sdma_is_supported,
+	.dpm_reset_vcn = smu_v13_0_6_reset_vcn,
 };
 
 void smu_v13_0_6_set_ppt_funcs(struct smu_context *smu)