cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

user.c (1951B)

      1/*
      2 * Copyright 2018 Red Hat 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#include <nvif/user.h>
     23#include <nvif/device.h>
     24
     25#include <nvif/class.h>
     26
     27void
     28nvif_user_dtor(struct nvif_device *device)
     29{
     30	if (device->user.func) {
     31		nvif_object_dtor(&device->user.object);
     32		device->user.func = NULL;
     33	}
     34}
     35
     36int
     37nvif_user_ctor(struct nvif_device *device, const char *name)
     38{
     39	struct {
     40		s32 oclass;
     41		int version;
     42		const struct nvif_user_func *func;
     43	} users[] = {
     44		{ VOLTA_USERMODE_A, -1, &nvif_userc361 },
     45		{}
     46	};
     47	int cid, ret;
     48
     49	if (device->user.func)
     50		return 0;
     51
     52	cid = nvif_mclass(&device->object, users);
     53	if (cid < 0)
     54		return cid;
     55
     56	ret = nvif_object_ctor(&device->object, name ? name : "nvifUsermode",
     57			       0, users[cid].oclass, NULL, 0,
     58			       &device->user.object);
     59	if (ret)
     60		return ret;
     61
     62	nvif_object_map(&device->user.object, NULL, 0);
     63	device->user.func = users[cid].func;
     64	return 0;
     65}