dmub_hw_lock_mgr.c revision 1.1 
1/*
2 * Copyright 2019 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: AMD
23 *
24 */
25
26#include "dmub_hw_lock_mgr.h"
27#include "dc_dmub_srv.h"
28#include "dc_types.h"
29#include "core_types.h"
30
31void dmub_hw_lock_mgr_cmd(struct dc_dmub_srv *dmub_srv,
32				bool lock,
33				union dmub_hw_lock_flags *hw_locks,
34				struct dmub_hw_lock_inst_flags *inst_flags)
35{
36	union dmub_rb_cmd cmd = { 0 };
37
38	cmd.lock_hw.header.type = DMUB_CMD__HW_LOCK;
39	cmd.lock_hw.header.sub_type = 0;
40	cmd.lock_hw.header.payload_bytes = sizeof(struct dmub_cmd_lock_hw_data);
41	cmd.lock_hw.lock_hw_data.client = HW_LOCK_CLIENT_DRIVER;
42	cmd.lock_hw.lock_hw_data.lock = lock;
43	cmd.lock_hw.lock_hw_data.hw_locks.u8All = hw_locks->u8All;
44	memcpy(&cmd.lock_hw.lock_hw_data.inst_flags, inst_flags, sizeof(struct dmub_hw_lock_inst_flags));
45
46	if (!lock)
47		cmd.lock_hw.lock_hw_data.should_release = 1;
48
49	dc_dmub_srv_cmd_queue(dmub_srv, &cmd);
50	dc_dmub_srv_cmd_execute(dmub_srv);
51	dc_dmub_srv_wait_idle(dmub_srv);
52}
53
54bool should_use_dmub_lock(struct dc_link *link)
55{
56	return false;
57}
58