drivers/gpu/drm/nouveau/nvkm/engine/sw/nv10.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 "priv.h"
  25 #include "chan.h"
  26 #include "nvsw.h"
  27
  28 #include <nvif/class.h>
  29
  30 /*******************************************************************************
  31  * software context
  32  ******************************************************************************/
  33
  34 static const struct nvkm_sw_chan_func
  35 nv10_sw_chan = {
  36 };
  37
  38 static int
  39 nv10_sw_chan_new(struct nvkm_sw *sw, struct nvkm_fifo_chan *fifo,
  40                  const struct nvkm_oclass *oclass, struct nvkm_object **pobject)
  41 {
  42         struct nvkm_sw_chan *chan;
  43
  44         if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))
  45                 return -ENOMEM;
  46         *pobject = &chan->object;
  47
  48         return nvkm_sw_chan_ctor(&nv10_sw_chan, sw, fifo, oclass, chan);
  49 }
  50
  51 /*******************************************************************************
  52  * software engine/subdev functions
  53  ******************************************************************************/
  54
  55 static const struct nvkm_sw_func
  56 nv10_sw = {
  57         .chan_new = nv10_sw_chan_new,
  58         .sclass = {
  59                 { nvkm_nvsw_new, { -1, -1, NVIF_CLASS_SW_NV10 } },
  60                 {}
  61         }
  62 };
  63
  64 int
  65 nv10_sw_new(struct nvkm_device *device, int index, struct nvkm_sw **psw)
  66 {
  67         return nvkm_sw_new_(&nv10_sw, device, index, psw);
  68 }