drm/amdgpu: Initialize mmhub v1_8 ras function

Initialize mmhub v1_8 ras function.

Signed-off-by: Hawking Zhang <[e-mail]>
Reviewed-by: Tao Zhou <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c

···
 	case IP_VERSION(9, 4, 2):
 		adev->mmhub.ras = &mmhub_v1_7_ras;
 		break;
+	case IP_VERSION(1, 8, 0):
+		adev->mmhub.ras = &mmhub_v1_8_ras;
+		break;
 	default:
 		/* mmhub ras is not available */
 		break;

drivers/gpu/drm/amd/amdgpu/mmhub_v1_8.c

···
 	for_each_inst(i, inst_mask)
 		mmhub_v1_8_inst_reset_ras_err_status(adev, i);
 }
+
+static const struct amdgpu_ras_block_hw_ops mmhub_v1_8_ras_hw_ops = {
+	.query_ras_error_count = mmhub_v1_8_query_ras_error_count,
+	.reset_ras_error_count = mmhub_v1_8_reset_ras_error_count,
+	.query_ras_error_status = mmhub_v1_8_query_ras_error_status,
+	.reset_ras_error_status = mmhub_v1_8_reset_ras_error_status,
+};
+
+struct amdgpu_mmhub_ras mmhub_v1_8_ras = {
+	.ras_block = {
+		.hw_ops = &mmhub_v1_8_ras_hw_ops,
+	},
+};

drivers/gpu/drm/amd/amdgpu/mmhub_v1_8.h

···
 #define __MMHUB_V1_8_H__
 
 extern const struct amdgpu_mmhub_funcs mmhub_v1_8_funcs;
+extern struct amdgpu_mmhub_ras mmhub_v1_8_ras;
 
 #endif