drm/amdgpu:add callback in cgs for sriov detect

Signed-off-by: Frank Min <[e-mail]>
Reviewed-by: Alex Deucher <[e-mail]>
Signed-off-by: Alex Deucher <[e-mail]>

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

···
 	return 0;
 }
 
+static int amdgpu_cgs_is_virtualization_enabled(void *cgs_device)
+{
+	CGS_FUNC_ADEV;
+	return amdgpu_sriov_vf(adev);
+}
+
 static int amdgpu_cgs_query_system_info(struct cgs_device *cgs_device,
 					struct cgs_system_info *sys_info)
 {
···
 	amdgpu_cgs_notify_dpm_enabled,
 	amdgpu_cgs_call_acpi_method,
 	amdgpu_cgs_query_system_info,
+	amdgpu_cgs_is_virtualization_enabled
 };
 
 static const struct cgs_os_ops amdgpu_cgs_os_ops = {

drivers/gpu/drm/amd/include/cgs_common.h

···
 typedef int (*cgs_query_system_info)(struct cgs_device *cgs_device,
 				struct cgs_system_info *sys_info);
 
+typedef int (*cgs_is_virtualization_enabled_t)(void *cgs_device);
+
 struct cgs_ops {
 	/* memory management calls (similar to KFD interface) */
 	cgs_gpu_mem_info_t gpu_mem_info;
···
 	cgs_call_acpi_method call_acpi_method;
 	/* get system info */
 	cgs_query_system_info query_system_info;
+	cgs_is_virtualization_enabled_t is_virtualization_enabled;
 };
 
 struct cgs_os_ops; /* To be define in OS-specific CGS header */
···
 	CGS_CALL(get_pci_resource, cgs_device, resource_type, size, offset, \
 	resource_base)
 
+#define cgs_is_virtualization_enabled(cgs_device) \
+		CGS_CALL(is_virtualization_enabled, cgs_device)
 #endif /* _CGS_COMMON_H */