drm/amdkfd: PM4 packets change to support GWS

Add a field in map_queues packet to indicate whether
this is a gws control queue. Only one queue per process
can be gws control queue. Change num_gws field in
map_process packet to 7 bits
Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdkfd/kfd_kernel_queue_v9.c

@@ -159,6 +159,7 @@ static int pm_map_queues_v9(struct packet_manager *pm, uint32_t *buffer,
 
 	packet->bitfields2.engine_sel =
 		engine_sel__mes_map_queues__compute_vi;
+	packet->bitfields2.gws_control_queue = q->gws ? 1 : 0;
 	packet->bitfields2.queue_type =
 		queue_type__mes_map_queues__normal_compute_vi;
 

drivers/gpu/drm/amd/amdkfd/kfd_pm4_headers_ai.h

@@ -176,8 +176,7 @@ struct pm4_mes_map_process {
 
 	union {
 		struct {
-			uint32_t num_gws:6;
-			uint32_t reserved7:1;
+			uint32_t num_gws:7;
 			uint32_t sdma_enable:1;
 			uint32_t num_oac:4;
 			uint32_t reserved8:4;
@@ -272,7 +271,9 @@ struct pm4_mes_map_queues {
 		struct {
 			uint32_t reserved1:4;
 			enum mes_map_queues_queue_sel_enum queue_sel:2;
-			uint32_t reserved2:15;
+			uint32_t reserved5:6;
+			uint32_t gws_control_queue:1;
+			uint32_t reserved2:8;
 			enum mes_map_queues_queue_type_enum queue_type:3;
 			uint32_t reserved3:2;
 			enum mes_map_queues_engine_sel_enum engine_sel:3;