libhsakmt: Update context save area size calculations

Currently, context save area size passed to KFD includes the
size of the debug area. Change this to report the actual size
of the context save area to KFD.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Change-Id: I5d440ae802255a97ade046775f6a000bae79d5d5

src/queues.c

@@ -291,7 +291,7 @@ static bool update_ctx_save_restore_size(uint32_t nodeid, struct queue *q)
 			ALIGN_UP(wave_num * DEBUGGER_BYTES_PER_WAVE, DEBUGGER_BYTES_ALIGN);
 
 		q->ctx_save_restore_size = q->ctl_stack_size
-					+ PAGE_ALIGN_UP(wg_data_size + q->debug_memory_size);
+					+ PAGE_ALIGN_UP(wg_data_size);
 		return true;
 	}
 	return false;
@@ -423,14 +423,21 @@ static int handle_concrete_asic(struct queue *q,
 	ret = update_ctx_save_restore_size(NodeId, q);
 
 	if (ret) {
+		uint32_t total_mem_alloc_size = 0;
 		HsaUserContextSaveAreaHeader *header;
 
 		args->ctx_save_restore_size = q->ctx_save_restore_size;
 		args->ctl_stack_size = q->ctl_stack_size;
+
+		/* Total memory to be allocated is =
+		 * (Control Stack size + WG size) + Debug memory area size
+		 */
+		total_mem_alloc_size = q->ctx_save_restore_size +
+				       q->debug_memory_size;
 		q->ctx_save_restore =
-			allocate_exec_aligned_memory(q->ctx_save_restore_size,
-							 q->use_ats,
-							 NodeId, false, false);
+			allocate_exec_aligned_memory(total_mem_alloc_size,
+					 q->use_ats, NodeId, false, false);
+
 		if (!q->ctx_save_restore)
 			return HSAKMT_STATUS_NO_MEMORY;
 
@@ -441,7 +448,7 @@ static int handle_concrete_asic(struct queue *q,
 		if (Event)
 			header->ErrorEventId = Event->EventId;
 		header->ErrorReason = ErrPayload;
-		header->DebugOffset = q->ctx_save_restore_size - q->debug_memory_size;
+		header->DebugOffset = q->ctx_save_restore_size;
 		header->DebugSize = q->debug_memory_size;
 	}