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kernel/linux-rt-4.4.41/drivers/gpu/drm/nouveau/nvkm/engine/ce/gk104.c 2.11 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 "priv.h"
  
  #include <nvif/class.h>
  
  void
  gk104_ce_intr(struct nvkm_engine *ce)
  {
  	const u32 base = (ce->subdev.index - NVKM_ENGINE_CE0) * 0x1000;
  	struct nvkm_subdev *subdev = &ce->subdev;
  	struct nvkm_device *device = subdev->device;
  	u32 stat = nvkm_rd32(device, 0x104908 + base);
  	if (stat) {
  		nvkm_warn(subdev, "intr %08x
  ", stat);
  		nvkm_wr32(device, 0x104908 + base, stat);
  	}
  }
  
  static const struct nvkm_engine_func
  gk104_ce = {
  	.intr = gk104_ce_intr,
  	.sclass = {
  		{ -1, -1, KEPLER_DMA_COPY_A },
  		{}
  	}
  };
  
  int
  gk104_ce_new(struct nvkm_device *device, int index,
  	     struct nvkm_engine **pengine)
  {
  	if (index == NVKM_ENGINE_CE0) {
  		return nvkm_engine_new_(&gk104_ce, device, index,
  					0x00000040, true, pengine);
  	} else
  	if (index == NVKM_ENGINE_CE1) {
  		return nvkm_engine_new_(&gk104_ce, device, index,
  					0x00000080, true, pengine);
  	} else
  	if (index == NVKM_ENGINE_CE2) {
  		return nvkm_engine_new_(&gk104_ce, device, index,
  					0x00200000, true, pengine);
  	}
  	return -ENODEV;
  }