1 // SPDX-License-Identifier: MIT
42  * xe_gsc_emit_header - write the MTL GSC header in memory
72  * xe_gsc_check_and_update_pending - check the pending bit and update the input
77  * @out: the iosys map containing the output buffer
84 				     struct iosys_map *out, u32 offset_out)  in xe_gsc_check_and_update_pending()  argument
86 	if (mtl_gsc_header_rd(xe, out, offset_out, flags) & GSC_OUTFLAG_MSG_PENDING) {  in xe_gsc_check_and_update_pending()
87 		u64 handle = mtl_gsc_header_rd(xe, out, offset_out, gsc_message_handle);  in xe_gsc_check_and_update_pending()
98  * xe_gsc_read_out_header - reads and validates the output header and returns
106  * Returns: -errno value on failure, 0 otherwise
115 	u32 payload_size = size - GSC_HDR_SIZE;  in xe_gsc_read_out_header()
118 		return -EPROTO;  in xe_gsc_read_out_header()
121 		return -ENODATA;  in xe_gsc_read_out_header()
130  * xe_gsc_pkt_submit_kernel - submit a kernel heci pkt to the GSC
147 		return -ENODATA;  in xe_gsc_pkt_submit_kernel()
150 		return -ENOMEM;  in xe_gsc_pkt_submit_kernel()
156 	bb->cs[bb->len++] = GSC_HECI_CMD_PKT;  in xe_gsc_pkt_submit_kernel()
157 	bb->cs[bb->len++] = lower_32_bits(addr_in);  in xe_gsc_pkt_submit_kernel()
158 	bb->cs[bb->len++] = upper_32_bits(addr_in);  in xe_gsc_pkt_submit_kernel()
159 	bb->cs[bb->len++] = size_in;  in xe_gsc_pkt_submit_kernel()
160 	bb->cs[bb->len++] = lower_32_bits(addr_out);  in xe_gsc_pkt_submit_kernel()
161 	bb->cs[bb->len++] = upper_32_bits(addr_out);  in xe_gsc_pkt_submit_kernel()
162 	bb->cs[bb->len++] = size_out;  in xe_gsc_pkt_submit_kernel()
163 	bb->cs[bb->len++] = 0;  in xe_gsc_pkt_submit_kernel()
165 	job = xe_bb_create_job(gsc->q, bb);  in xe_gsc_pkt_submit_kernel()
172 	fence = dma_fence_get(&job->drm.s_fence->finished);  in xe_gsc_pkt_submit_kernel()
181 		return -ETIME;  in xe_gsc_pkt_submit_kernel()