release/src-rt-6.x.4708/linux/linux-2.6.36/drivers/gpu/drm/nouveau/nvc0_fifo.c

   1 /*
   2  * Copyright 2010 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
  25 #include "drmP.h"
  26
  27 #include "nouveau_drv.h"
  28
  29 void
  30 nvc0_fifo_disable(struct drm_device *dev)
  31 {
  32 }
  33
  34 void
  35 nvc0_fifo_enable(struct drm_device *dev)
  36 {
  37 }
  38
  39 bool
  40 nvc0_fifo_reassign(struct drm_device *dev, bool enable)
  41 {
  42         return false;
  43 }
  44
  45 bool
  46 nvc0_fifo_cache_flush(struct drm_device *dev)
  47 {
  48         return true;
  49 }
  50
  51 bool
  52 nvc0_fifo_cache_pull(struct drm_device *dev, bool enable)
  53 {
  54         return false;
  55 }
  56
  57 int
  58 nvc0_fifo_channel_id(struct drm_device *dev)
  59 {
  60         return 127;
  61 }
  62
  63 int
  64 nvc0_fifo_create_context(struct nouveau_channel *chan)
  65 {
  66         return 0;
  67 }
  68
  69 void
  70 nvc0_fifo_destroy_context(struct nouveau_channel *chan)
  71 {
  72 }
  73
  74 int
  75 nvc0_fifo_load_context(struct nouveau_channel *chan)
  76 {
  77         return 0;
  78 }
  79
  80 int
  81 nvc0_fifo_unload_context(struct drm_device *dev)
  82 {
  83         return 0;
  84 }
  85
  86 void
  87 nvc0_fifo_takedown(struct drm_device *dev)
  88 {
  89 }
  90
  91 int
  92 nvc0_fifo_init(struct drm_device *dev)
  93 {
  94         return 0;
  95 }