LXR linux/drivers/gpu/drm/nouveau/nvkm/engine/disp/capsgv100.c

   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}
  61