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/fifo.h>
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun static int
nvif_fifo_runlists(struct nvif_device * device)25*4882a593Smuzhiyun nvif_fifo_runlists(struct nvif_device *device)
26*4882a593Smuzhiyun {
27*4882a593Smuzhiyun struct nvif_object *object = &device->object;
28*4882a593Smuzhiyun struct {
29*4882a593Smuzhiyun struct nv_device_info_v1 m;
30*4882a593Smuzhiyun struct {
31*4882a593Smuzhiyun struct nv_device_info_v1_data runlists;
32*4882a593Smuzhiyun struct nv_device_info_v1_data runlist[64];
33*4882a593Smuzhiyun } v;
34*4882a593Smuzhiyun } *a;
35*4882a593Smuzhiyun int ret, i;
36*4882a593Smuzhiyun
37*4882a593Smuzhiyun if (device->runlist)
38*4882a593Smuzhiyun return 0;
39*4882a593Smuzhiyun
40*4882a593Smuzhiyun if (!(a = kmalloc(sizeof(*a), GFP_KERNEL)))
41*4882a593Smuzhiyun return -ENOMEM;
42*4882a593Smuzhiyun a->m.version = 1;
43*4882a593Smuzhiyun a->m.count = sizeof(a->v) / sizeof(a->v.runlists);
44*4882a593Smuzhiyun a->v.runlists.mthd = NV_DEVICE_FIFO_RUNLISTS;
45*4882a593Smuzhiyun for (i = 0; i < ARRAY_SIZE(a->v.runlist); i++)
46*4882a593Smuzhiyun a->v.runlist[i].mthd = NV_DEVICE_FIFO_RUNLIST_ENGINES(i);
47*4882a593Smuzhiyun
48*4882a593Smuzhiyun ret = nvif_object_mthd(object, NV_DEVICE_V0_INFO, a, sizeof(*a));
49*4882a593Smuzhiyun if (ret)
50*4882a593Smuzhiyun goto done;
51*4882a593Smuzhiyun
52*4882a593Smuzhiyun device->runlists = fls64(a->v.runlists.data);
53*4882a593Smuzhiyun device->runlist = kcalloc(device->runlists, sizeof(*device->runlist),
54*4882a593Smuzhiyun GFP_KERNEL);
55*4882a593Smuzhiyun if (!device->runlist) {
56*4882a593Smuzhiyun ret = -ENOMEM;
57*4882a593Smuzhiyun goto done;
58*4882a593Smuzhiyun }
59*4882a593Smuzhiyun
60*4882a593Smuzhiyun for (i = 0; i < device->runlists; i++) {
61*4882a593Smuzhiyun if (a->v.runlists.data & BIT_ULL(i))
62*4882a593Smuzhiyun device->runlist[i].engines = a->v.runlist[i].data;
63*4882a593Smuzhiyun }
64*4882a593Smuzhiyun
65*4882a593Smuzhiyun done:
66*4882a593Smuzhiyun kfree(a);
67*4882a593Smuzhiyun return ret;
68*4882a593Smuzhiyun }
69*4882a593Smuzhiyun
70*4882a593Smuzhiyun u64
nvif_fifo_runlist(struct nvif_device * device,u64 engine)71*4882a593Smuzhiyun nvif_fifo_runlist(struct nvif_device *device, u64 engine)
72*4882a593Smuzhiyun {
73*4882a593Smuzhiyun struct nvif_object *object = &device->object;
74*4882a593Smuzhiyun struct {
75*4882a593Smuzhiyun struct nv_device_info_v1 m;
76*4882a593Smuzhiyun struct {
77*4882a593Smuzhiyun struct nv_device_info_v1_data engine;
78*4882a593Smuzhiyun } v;
79*4882a593Smuzhiyun } a = {
80*4882a593Smuzhiyun .m.version = 1,
81*4882a593Smuzhiyun .m.count = sizeof(a.v) / sizeof(a.v.engine),
82*4882a593Smuzhiyun .v.engine.mthd = engine,
83*4882a593Smuzhiyun };
84*4882a593Smuzhiyun u64 runm = 0;
85*4882a593Smuzhiyun int ret, i;
86*4882a593Smuzhiyun
87*4882a593Smuzhiyun if ((ret = nvif_fifo_runlists(device)))
88*4882a593Smuzhiyun return runm;
89*4882a593Smuzhiyun
90*4882a593Smuzhiyun ret = nvif_object_mthd(object, NV_DEVICE_V0_INFO, &a, sizeof(a));
91*4882a593Smuzhiyun if (ret == 0) {
92*4882a593Smuzhiyun for (i = 0; i < device->runlists; i++) {
93*4882a593Smuzhiyun if (device->runlist[i].engines & a.v.engine.data)
94*4882a593Smuzhiyun runm |= BIT_ULL(i);
95*4882a593Smuzhiyun }
96*4882a593Smuzhiyun }
97*4882a593Smuzhiyun
98*4882a593Smuzhiyun return runm;
99*4882a593Smuzhiyun }
100