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kernel/linux-rt-4.4.41/drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gk104.c 2 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"
  
  static void
  gk104_ltc_init(struct nvkm_ltc *ltc)
  {
  	struct nvkm_device *device = ltc->subdev.device;
  	u32 lpg128 = !(nvkm_rd32(device, 0x100c80) & 0x00000001);
  
  	nvkm_wr32(device, 0x17e8d8, ltc->ltc_nr);
  	nvkm_wr32(device, 0x17e000, ltc->ltc_nr);
  	nvkm_wr32(device, 0x17e8d4, ltc->tag_base);
  	nvkm_mask(device, 0x17e8c0, 0x00000002, lpg128 ? 0x00000002 : 0x00000000);
  }
  
  static const struct nvkm_ltc_func
  gk104_ltc = {
  	.oneinit = gf100_ltc_oneinit,
  	.init = gk104_ltc_init,
  	.intr = gf100_ltc_intr,
  	.cbc_clear = gf100_ltc_cbc_clear,
  	.cbc_wait = gf100_ltc_cbc_wait,
  	.zbc = 16,
  	.zbc_clear_color = gf100_ltc_zbc_clear_color,
  	.zbc_clear_depth = gf100_ltc_zbc_clear_depth,
  	.invalidate = gf100_ltc_invalidate,
  	.flush = gf100_ltc_flush,
  };
  
  int
  gk104_ltc_new(struct nvkm_device *device, int index, struct nvkm_ltc **pltc)
  {
  	return nvkm_ltc_new_(&gk104_ltc, device, index, pltc);
  }