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

capsgv100.c (2139B)

      1/*
      2 * Copyright 2020 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#define gv100_disp_caps(p) container_of((p), struct gv100_disp_caps, object)
     23#include "rootnv50.h"
     24
     25struct gv100_disp_caps {
     26	struct nvkm_object object;
     27	struct nv50_disp *disp;
     28};
     29
     30static int
     31gv100_disp_caps_map(struct nvkm_object *object, void *argv, u32 argc,
     32		    enum nvkm_object_map *type, u64 *addr, u64 *size)
     33{
     34	struct gv100_disp_caps *caps = gv100_disp_caps(object);
     35	struct nvkm_device *device = caps->disp->base.engine.subdev.device;
     36	*type = NVKM_OBJECT_MAP_IO;
     37	*addr = 0x640000 + device->func->resource_addr(device, 0);
     38	*size = 0x1000;
     39	return 0;
     40}
     41
     42static const struct nvkm_object_func
     43gv100_disp_caps = {
     44	.map = gv100_disp_caps_map,
     45};
     46
     47int
     48gv100_disp_caps_new(const struct nvkm_oclass *oclass, void *argv, u32 argc,
     49		    struct nv50_disp *disp, struct nvkm_object **pobject)
     50{
     51	struct gv100_disp_caps *caps;
     52
     53	if (!(caps = kzalloc(sizeof(*caps), GFP_KERNEL)))
     54		return -ENOMEM;
     55	*pobject = &caps->object;
     56
     57	nvkm_object_ctor(&gv100_disp_caps, oclass, &caps->object);
     58	caps->disp = disp;
     59	return 0;
     60}