drm/amd/pm: add smu ras driver framework

add functions to get smu ras driver

Signed-off-by: Gangliang Xie <ganglxie@amd.com>
Signed-off-by: Yang Wang <kevinyang.wang@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_ras.h

@@ -620,6 +620,7 @@ struct amdgpu_ras {
 
 	/* Disable/Enable uniras switch */
 	bool uniras_enabled;
+	const struct ras_smu_drv *ras_smu_drv;
 };
 
 struct ras_fs_data {

drivers/gpu/drm/amd/pm/amdgpu_dpm.c

@@ -2122,3 +2122,10 @@ ssize_t amdgpu_dpm_get_xcp_metrics(struct amdgpu_device *adev, int xcp_id,
 
 	return ret;
 }
+
+const struct ras_smu_drv *amdgpu_dpm_get_ras_smu_driver(struct amdgpu_device *adev)
+{
+	void *pp_handle = adev->powerplay.pp_handle;
+
+	return smu_get_ras_smu_driver(pp_handle);
+}

drivers/gpu/drm/amd/pm/inc/amdgpu_dpm.h

@@ -612,5 +612,6 @@ int amdgpu_dpm_reset_vcn(struct amdgpu_device *adev, uint32_t inst_mask);
 bool amdgpu_dpm_reset_vcn_is_supported(struct amdgpu_device *adev);
 bool amdgpu_dpm_is_temp_metrics_supported(struct amdgpu_device *adev,
 					  enum smu_temp_metric_type type);
+const struct ras_smu_drv *amdgpu_dpm_get_ras_smu_driver(struct amdgpu_device *adev);
 
 #endif

drivers/gpu/drm/amd/pm/swsmu/amdgpu_smu.c

@@ -2803,6 +2803,17 @@ const struct amdgpu_ip_block_version smu_v14_0_ip_block = {
 	.funcs = &smu_ip_funcs,
 };
 
+const struct ras_smu_drv *smu_get_ras_smu_driver(void *handle)
+{
+	struct smu_context *smu = (struct smu_context *)handle;
+	const struct ras_smu_drv *tmp = NULL;
+	int ret;
+
+	ret = smu_get_ras_smu_drv(smu, &tmp);
+
+	return ret ? NULL : tmp;
+}
+
 static int smu_load_microcode(void *handle)
 {
 	struct smu_context *smu = handle;

drivers/gpu/drm/amd/pm/swsmu/inc/amdgpu_smu.h

@@ -1531,6 +1531,12 @@ struct pptable_funcs {
 	int (*ras_send_msg)(struct smu_context *smu,
 			    enum smu_message_type msg, uint32_t param, uint32_t *read_arg);
 
+
+	/**
+	 * @get_ras_smu_drv: Get RAS smu driver interface
+	 * Return: ras_smu_drv *
+	 */
+	int (*get_ras_smu_drv)(struct smu_context *smu, const struct ras_smu_drv **ras_smu_drv);
 };
 
 typedef enum {
@@ -1795,6 +1801,7 @@ 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,
 			       enum pp_pm_policy p_type, char *sysbuf);
+const struct ras_smu_drv *smu_get_ras_smu_driver(void *handle);
 
 int amdgpu_smu_ras_send_msg(struct amdgpu_device *adev, enum smu_message_type msg,
 			    uint32_t param, uint32_t *readarg);

drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_6_ppt.c

@@ -3905,6 +3905,26 @@ static void smu_v13_0_6_set_temp_funcs(struct smu_context *smu)
 			== IP_VERSION(13, 0, 12)) ? &smu_v13_0_12_temp_funcs : NULL;
 }
 
+static int smu_v13_0_6_get_ras_smu_drv(struct smu_context *smu, const struct ras_smu_drv **ras_smu_drv)
+{
+	if (!ras_smu_drv)
+		return -EINVAL;
+
+	if (amdgpu_sriov_vf(smu->adev))
+		return -EOPNOTSUPP;
+
+	switch (amdgpu_ip_version(smu->adev, MP1_HWIP, 0)) {
+	case IP_VERSION(13, 0, 12):
+		*ras_smu_drv = &smu_v13_0_12_ras_smu_drv;
+		break;
+	default:
+		*ras_smu_drv = NULL;
+		break;
+	}
+
+	return 0;
+}
+
 static const struct pptable_funcs smu_v13_0_6_ppt_funcs = {
 	/* init dpm */
 	.get_allowed_feature_mask = smu_v13_0_6_get_allowed_feature_mask,
@@ -3964,6 +3984,7 @@ static const struct pptable_funcs smu_v13_0_6_ppt_funcs = {
 	.dpm_reset_vcn = smu_v13_0_6_reset_vcn,
 	.post_init = smu_v13_0_6_post_init,
 	.ras_send_msg = smu_v13_0_6_ras_send_msg,
+	.get_ras_smu_drv = smu_v13_0_6_get_ras_smu_drv,
 };
 
 void smu_v13_0_6_set_ppt_funcs(struct smu_context *smu)

drivers/gpu/drm/amd/pm/swsmu/smu_internal.h

@@ -100,6 +100,7 @@
 #define smu_is_asic_wbrf_supported(smu)			smu_ppt_funcs(is_asic_wbrf_supported, false, smu)
 #define smu_enable_uclk_shadow(smu, enable)		smu_ppt_funcs(enable_uclk_shadow, 0, smu, enable)
 #define smu_set_wbrf_exclusion_ranges(smu, freq_band_range)		smu_ppt_funcs(set_wbrf_exclusion_ranges, -EOPNOTSUPP, smu, freq_band_range)
+#define smu_get_ras_smu_drv(smu, ras_smu_drv)			smu_ppt_funcs(get_ras_smu_drv, -EOPNOTSUPP, smu, ras_smu_drv)
 
 #endif
 #endif