drm/amdgpu: Add nps info table to IP discovery

Add support to fetch NPS info table in IP discovery table.
Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Le Ma <le.ma@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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

@@ -31,15 +31,15 @@
 #define HARVEST_TABLE_SIGNATURE         0x56524148
 #define VCN_INFO_TABLE_ID               0x004E4356
 #define MALL_INFO_TABLE_ID              0x4C4C414D
+#define NPS_INFO_TABLE_ID 0x0053504E
 
-typedef enum
-{
+typedef enum {
 	IP_DISCOVERY = 0,
 	GC,
 	HARVEST_INFO,
 	VCN_INFO,
 	MALL_INFO,
-	RESERVED_1,
+	NPS_INFO,
 	TOTAL_TABLES = 6
 } table;
 
@@ -380,6 +380,28 @@ struct vcn_info_v1_0 {
 	uint32_t reserved[4];
 };
 
+#define NPS_INFO_TABLE_MAX_NUM_INSTANCES 12
+
+struct nps_info_header {
+	uint32_t table_id; /* table ID */
+	uint16_t version_major; /* table version */
+	uint16_t version_minor; /* table version */
+	uint32_t size_bytes; /* size of the entire header+data in bytes = 0x000000D4 (212) */
+};
+
+struct nps_instance_info_v1_0 {
+	uint64_t base_address;
+	uint64_t limit_address;
+};
+
+struct nps_info_v1_0 {
+	struct nps_info_header header;
+	uint32_t nps_type;
+	uint32_t count;
+	struct nps_instance_info_v1_0
+		instance_info[NPS_INFO_TABLE_MAX_NUM_INSTANCES];
+};
+
 #pragma pack()
 
 #endif