drm/amdgpu: add some common definitions to amd_shared.h

Add GPU family definitions and timeout value for IP components.
Signed-off-by: Jammy Zhou <Jammy.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -23,6 +23,17 @@
 #ifndef __AMD_SHARED_H__
 #define __AMD_SHARED_H__
 
+#define AMD_MAX_USEC_TIMEOUT		100000  /* 100 ms */
+
+/*
+* Supported GPU families (aligned with amdgpu_drm.h)
+*/
+#define AMD_FAMILY_UNKNOWN              0
+#define AMD_FAMILY_CI                   120 /* Bonaire, Hawaii */
+#define AMD_FAMILY_KV                   125 /* Kaveri, Kabini, Mullins */
+#define AMD_FAMILY_VI                   130 /* Iceland, Tonga */
+#define AMD_FAMILY_CZ                   135 /* Carrizo */
+
 enum amd_ip_block_type {
 	AMD_IP_BLOCK_TYPE_COMMON,
 	AMD_IP_BLOCK_TYPE_GMC,