100 lines
2.8 KiB
C
100 lines
2.8 KiB
C
/*
|
|
* Copyright 2018 Red Hat Inc.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
|
* copy of this software and associated documentation files (the "Software"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
|
|
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
#include <nvif/fifo.h>
|
|
|
|
static int
|
|
nvif_fifo_runlists(struct nvif_device *device)
|
|
{
|
|
struct nvif_object *object = &device->object;
|
|
struct {
|
|
struct nv_device_info_v1 m;
|
|
struct {
|
|
struct nv_device_info_v1_data runlists;
|
|
struct nv_device_info_v1_data runlist[64];
|
|
} v;
|
|
} *a;
|
|
int ret, i;
|
|
|
|
if (device->runlist)
|
|
return 0;
|
|
|
|
if (!(a = kmalloc(sizeof(*a), GFP_KERNEL)))
|
|
return -ENOMEM;
|
|
a->m.version = 1;
|
|
a->m.count = sizeof(a->v) / sizeof(a->v.runlists);
|
|
a->v.runlists.mthd = NV_DEVICE_FIFO_RUNLISTS;
|
|
for (i = 0; i < ARRAY_SIZE(a->v.runlist); i++)
|
|
a->v.runlist[i].mthd = NV_DEVICE_FIFO_RUNLIST_ENGINES(i);
|
|
|
|
ret = nvif_object_mthd(object, NV_DEVICE_V0_INFO, a, sizeof(*a));
|
|
if (ret)
|
|
goto done;
|
|
|
|
device->runlists = fls64(a->v.runlists.data);
|
|
device->runlist = kcalloc(device->runlists, sizeof(*device->runlist),
|
|
GFP_KERNEL);
|
|
if (!device->runlist) {
|
|
ret = -ENOMEM;
|
|
goto done;
|
|
}
|
|
|
|
for (i = 0; i < device->runlists; i++) {
|
|
if (a->v.runlists.data & BIT_ULL(i))
|
|
device->runlist[i].engines = a->v.runlist[i].data;
|
|
}
|
|
|
|
done:
|
|
kfree(a);
|
|
return ret;
|
|
}
|
|
|
|
u64
|
|
nvif_fifo_runlist(struct nvif_device *device, u64 engine)
|
|
{
|
|
struct nvif_object *object = &device->object;
|
|
struct {
|
|
struct nv_device_info_v1 m;
|
|
struct {
|
|
struct nv_device_info_v1_data engine;
|
|
} v;
|
|
} a = {
|
|
.m.version = 1,
|
|
.m.count = sizeof(a.v) / sizeof(a.v.engine),
|
|
.v.engine.mthd = engine,
|
|
};
|
|
u64 runm = 0;
|
|
int ret, i;
|
|
|
|
if ((ret = nvif_fifo_runlists(device)))
|
|
return runm;
|
|
|
|
ret = nvif_object_mthd(object, NV_DEVICE_V0_INFO, &a, sizeof(a));
|
|
if (ret == 0) {
|
|
for (i = 0; i < device->runlists; i++) {
|
|
if (device->runlist[i].engines & a.v.engine.data)
|
|
runm |= BIT_ULL(i);
|
|
}
|
|
}
|
|
|
|
return runm;
|
|
}
|