kernel/drivers/gpu/drm/nouveau/nvif/user.c
2024-07-22 17:22:30 +08:00

66 lines
1.9 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/user.h>
#include <nvif/device.h>
#include <nvif/class.h>
void
nvif_user_dtor(struct nvif_device *device)
{
if (device->user.func) {
nvif_object_dtor(&device->user.object);
device->user.func = NULL;
}
}
int
nvif_user_ctor(struct nvif_device *device, const char *name)
{
struct {
s32 oclass;
int version;
const struct nvif_user_func *func;
} users[] = {
{ VOLTA_USERMODE_A, -1, &nvif_userc361 },
{}
};
int cid, ret;
if (device->user.func)
return 0;
cid = nvif_mclass(&device->object, users);
if (cid < 0)
return cid;
ret = nvif_object_ctor(&device->object, name ? name : "nvifUsermode",
0, users[cid].oclass, NULL, 0,
&device->user.object);
if (ret)
return ret;
nvif_object_map(&device->user.object, NULL, 0);
device->user.func = users[cid].func;
return 0;
}