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kernel/linux-rt-4.4.41/drivers/gpu/drm/nouveau/nvkm/engine/fifo/g84.c 1.99 KB
5113f6f70   김현기   kernel add
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  /*
   * Copyright 2012 Red Hat Inc.
   *
   * Permission is hereby granted, free of charge, to any person obtaining a
   * copy of this software and associated documentation files (the "Software"),
   * to deal in the Software without restriction, including without limitation
   * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   * and/or sell copies of the Software, and to permit persons to whom the
   * Software is furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
   * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
   * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
   * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
   * OTHER DEALINGS IN THE SOFTWARE.
   *
   * Authors: Ben Skeggs
   */
  #include "nv50.h"
  #include "channv50.h"
  
  static void
  g84_fifo_uevent_fini(struct nvkm_fifo *fifo)
  {
  	struct nvkm_device *device = fifo->engine.subdev.device;
  	nvkm_mask(device, 0x002140, 0x40000000, 0x00000000);
  }
  
  static void
  g84_fifo_uevent_init(struct nvkm_fifo *fifo)
  {
  	struct nvkm_device *device = fifo->engine.subdev.device;
  	nvkm_mask(device, 0x002140, 0x40000000, 0x40000000);
  }
  
  static const struct nvkm_fifo_func
  g84_fifo = {
  	.dtor = nv50_fifo_dtor,
  	.oneinit = nv50_fifo_oneinit,
  	.init = nv50_fifo_init,
  	.intr = nv04_fifo_intr,
  	.pause = nv04_fifo_pause,
  	.start = nv04_fifo_start,
  	.uevent_init = g84_fifo_uevent_init,
  	.uevent_fini = g84_fifo_uevent_fini,
  	.chan = {
  		&g84_fifo_dma_oclass,
  		&g84_fifo_gpfifo_oclass,
  		NULL
  	},
  };
  
  int
  g84_fifo_new(struct nvkm_device *device, int index, struct nvkm_fifo **pfifo)
  {
  	return nv50_fifo_new_(&g84_fifo, device, index, pfifo);
  }