1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * Copyright 2018 Red Hat Inc.
3*4882a593Smuzhiyun *
4*4882a593Smuzhiyun * Permission is hereby granted, free of charge, to any person obtaining a
5*4882a593Smuzhiyun * copy of this software and associated documentation files (the "Software"),
6*4882a593Smuzhiyun * to deal in the Software without restriction, including without limitation
7*4882a593Smuzhiyun * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8*4882a593Smuzhiyun * and/or sell copies of the Software, and to permit persons to whom the
9*4882a593Smuzhiyun * Software is furnished to do so, subject to the following conditions:
10*4882a593Smuzhiyun *
11*4882a593Smuzhiyun * The above copyright notice and this permission notice shall be included in
12*4882a593Smuzhiyun * all copies or substantial portions of the Software.
13*4882a593Smuzhiyun *
14*4882a593Smuzhiyun * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15*4882a593Smuzhiyun * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16*4882a593Smuzhiyun * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17*4882a593Smuzhiyun * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18*4882a593Smuzhiyun * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19*4882a593Smuzhiyun * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20*4882a593Smuzhiyun * OTHER DEALINGS IN THE SOFTWARE.
21*4882a593Smuzhiyun */
22*4882a593Smuzhiyun #include <nvif/user.h>
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun static u64
nvif_userc361_time(struct nvif_user * user)25*4882a593Smuzhiyun nvif_userc361_time(struct nvif_user *user)
26*4882a593Smuzhiyun {
27*4882a593Smuzhiyun u32 hi, lo;
28*4882a593Smuzhiyun
29*4882a593Smuzhiyun do {
30*4882a593Smuzhiyun hi = nvif_rd32(&user->object, 0x084);
31*4882a593Smuzhiyun lo = nvif_rd32(&user->object, 0x080);
32*4882a593Smuzhiyun } while (hi != nvif_rd32(&user->object, 0x084));
33*4882a593Smuzhiyun
34*4882a593Smuzhiyun return ((u64)hi << 32 | lo);
35*4882a593Smuzhiyun }
36*4882a593Smuzhiyun
37*4882a593Smuzhiyun static void
nvif_userc361_doorbell(struct nvif_user * user,u32 token)38*4882a593Smuzhiyun nvif_userc361_doorbell(struct nvif_user *user, u32 token)
39*4882a593Smuzhiyun {
40*4882a593Smuzhiyun nvif_wr32(&user->object, 0x90, token);
41*4882a593Smuzhiyun }
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun const struct nvif_user_func
44*4882a593Smuzhiyun nvif_userc361 = {
45*4882a593Smuzhiyun .doorbell = nvif_userc361_doorbell,
46*4882a593Smuzhiyun .time = nvif_userc361_time,
47*4882a593Smuzhiyun };
48