LXR linux/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
  34static const struct nvkm_sw_chan_func
  35nv10_sw_chan = {
  36};
  37
  38static int
  39nv10_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
  55static const struct nvkm_sw_func
  56nv10_sw = {
  57        .chan_new = nv10_sw_chan_new,
  58        .sclass = {
  59                { nvkm_nvsw_new, { -1, -1, NVIF_CLASS_SW_NV10 } },
  60                {}
  61        }
  62};
  63
  64int
  65nv10_sw_new(struct nvkm_device *device, int index, struct nvkm_sw **psw)
  66{
  67        return nvkm_sw_new_(&nv10_sw, device, index, psw);
  68}
  69