31  * as we use unique identifier for each user, with handle 0 being reserved for
61  * @xe: the Xe device
70 u32 xe_gsc_emit_header(struct xe_device *xe, struct iosys_map *map, u32 offset,  in xe_gsc_emit_header()  argument
73 	xe_assert(xe, !(host_session_id & HOST_SESSION_CLIENT_MASK));  in xe_gsc_emit_header()
78 	xe_map_memset(xe, map, offset, 0, GSC_HDR_SIZE);  in xe_gsc_emit_header()
80 	mtl_gsc_header_wr(xe, map, offset, validity_marker, GSC_HECI_VALIDITY_MARKER);  in xe_gsc_emit_header()
81 	mtl_gsc_header_wr(xe, map, offset, heci_client_id, heci_client_id);  in xe_gsc_emit_header()
82 	mtl_gsc_header_wr(xe, map, offset, host_session_handle, host_session_id);  in xe_gsc_emit_header()
83 	mtl_gsc_header_wr(xe, map, offset, header_version, MTL_GSC_HEADER_VERSION);  in xe_gsc_emit_header()
84 	mtl_gsc_header_wr(xe, map, offset, message_size, payload_size + GSC_HDR_SIZE);  in xe_gsc_emit_header()
91  * @xe: the Xe device
95 void xe_gsc_poison_header(struct xe_device *xe, struct iosys_map *map, u32 offset)  in xe_gsc_poison_header()  argument
97 	xe_map_memset(xe, map, offset, POISON_FREE, GSC_HDR_SIZE);  in xe_gsc_poison_header()
103  * @xe: the Xe device
111 bool xe_gsc_check_and_update_pending(struct xe_device *xe,  in xe_gsc_check_and_update_pending()  argument
115 	if (mtl_gsc_header_rd(xe, out, offset_out, flags) & GSC_OUTFLAG_MSG_PENDING) {  in xe_gsc_check_and_update_pending()
116 		u64 handle = mtl_gsc_header_rd(xe, out, offset_out, gsc_message_handle);  in xe_gsc_check_and_update_pending()
118 		mtl_gsc_header_wr(xe, in, offset_in, gsc_message_handle, handle);  in xe_gsc_check_and_update_pending()
129  * @xe: the Xe device
135  * Returns: -errno value on failure, 0 otherwise
137 int xe_gsc_read_out_header(struct xe_device *xe,  in xe_gsc_read_out_header()  argument
142 	u32 marker = mtl_gsc_header_rd(xe, map, offset, validity_marker);  in xe_gsc_read_out_header()
143 	u32 size = mtl_gsc_header_rd(xe, map, offset, message_size);  in xe_gsc_read_out_header()
144 	u32 status = mtl_gsc_header_rd(xe, map, offset, status);  in xe_gsc_read_out_header()
150 	if (status != 0) {  in xe_gsc_read_out_header()
151 		drm_err(&xe->drm, "GSC header readout indicates error: %d\n",  in xe_gsc_read_out_header()
162 	return 0;  in xe_gsc_read_out_header()
199 	bb->cs[bb->len++] = 0;  in xe_gsc_pkt_submit_kernel()
214 	if (timeout < 0)  in xe_gsc_pkt_submit_kernel()
219 	return 0;  in xe_gsc_pkt_submit_kernel()