drivers/gpu/drm/nouveau/nvkm/engine/disp/cursnv50.c

   1 /*
   2  * Copyright 2012 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  * Authors: Ben Skeggs
  23  */
  24 #include "channv50.h"
  25
  26 #include <core/client.h>
  27
  28 #include <nvif/class.h>
  29 #include <nvif/unpack.h>
  30
  31 int
  32 nv50_disp_curs_ctor(struct nvkm_object *parent,
  33                     struct nvkm_object *engine,
  34                     struct nvkm_oclass *oclass, void *data, u32 size,
  35                     struct nvkm_object **pobject)
  36 {
  37         union {
  38                 struct nv50_disp_cursor_v0 v0;
  39         } *args = data;
  40         struct nv50_disp *disp = (void *)engine;
  41         struct nv50_disp_pioc *pioc;
  42         int ret;
  43
  44         nvif_ioctl(parent, "create disp cursor size %d\n", size);
  45         if (nvif_unpack(args->v0, 0, 0, false)) {
  46                 nvif_ioctl(parent, "create disp cursor vers %d head %d\n",
  47                            args->v0.version, args->v0.head);
  48                 if (args->v0.head > disp->head.nr)
  49                         return -EINVAL;
  50         } else
  51                 return ret;
  52
  53         ret = nv50_disp_pioc_create_(parent, engine, oclass, args->v0.head,
  54                                      sizeof(*pioc), (void **)&pioc);
  55         *pobject = nv_object(pioc);
  56         if (ret)
  57                 return ret;
  58
  59         return 0;
  60 }
  61
  62 struct nv50_disp_chan_impl
  63 nv50_disp_curs_ofuncs = {
  64         .base.ctor = nv50_disp_curs_ctor,
  65         .base.dtor = nv50_disp_pioc_dtor,
  66         .base.init = nv50_disp_pioc_init,
  67         .base.fini = nv50_disp_pioc_fini,
  68         .base.ntfy = nv50_disp_chan_ntfy,
  69         .base.map  = nv50_disp_chan_map,
  70         .base.rd32 = nv50_disp_chan_rd32,
  71         .base.wr32 = nv50_disp_chan_wr32,
  72         .chid = 7,
  73 };