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kernel/linux-rt-4.4.41/drivers/gpu/drm/nouveau/nvkm/engine/gr/gm20b.c 2.61 KB
5113f6f70   김현기   kernel add
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  /*
   * Copyright (c) 2015, NVIDIA CORPORATION. All rights reserved.
   *
   * 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 AUTHORS OR COPYRIGHT HOLDERS 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.
   */
  #include "gf100.h"
  #include "ctxgf100.h"
  
  #include <subdev/timer.h>
  
  #include <nvif/class.h>
  
  static void
  gm20b_gr_init_gpc_mmu(struct gf100_gr *gr)
  {
  	struct nvkm_device *device = gr->base.engine.subdev.device;
  	u32 val;
  
  	/* TODO this needs to be removed once secure boot works */
  	if (1) {
  		nvkm_wr32(device, 0x100ce4, 0xffffffff);
  	}
  
  	/* TODO update once secure boot works */
  	val = nvkm_rd32(device, 0x100c80);
  	val &= 0xf000087f;
  	nvkm_wr32(device, 0x418880, val);
  	nvkm_wr32(device, 0x418890, 0);
  	nvkm_wr32(device, 0x418894, 0);
  
  	nvkm_wr32(device, 0x4188b0, nvkm_rd32(device, 0x100cc4));
  	nvkm_wr32(device, 0x4188b4, nvkm_rd32(device, 0x100cc8));
  	nvkm_wr32(device, 0x4188b8, nvkm_rd32(device, 0x100ccc));
  
  	nvkm_wr32(device, 0x4188ac, nvkm_rd32(device, 0x100800));
  }
  
  static void
  gm20b_gr_set_hww_esr_report_mask(struct gf100_gr *gr)
  {
  	struct nvkm_device *device = gr->base.engine.subdev.device;
  	nvkm_wr32(device, 0x419e44, 0xdffffe);
  	nvkm_wr32(device, 0x419e4c, 0x5);
  }
  
  static const struct gf100_gr_func
  gm20b_gr = {
  	.dtor = gk20a_gr_dtor,
  	.init = gk20a_gr_init,
  	.init_gpc_mmu = gm20b_gr_init_gpc_mmu,
  	.set_hww_esr_report_mask = gm20b_gr_set_hww_esr_report_mask,
  	.ppc_nr = 1,
  	.grctx = &gm20b_grctx,
  	.sclass = {
  		{ -1, -1, FERMI_TWOD_A },
  		{ -1, -1, KEPLER_INLINE_TO_MEMORY_B },
  		{ -1, -1, MAXWELL_B, &gf100_fermi },
  		{ -1, -1, MAXWELL_COMPUTE_B },
  		{}
  	}
  };
  
  int
  gm20b_gr_new(struct nvkm_device *device, int index, struct nvkm_gr **pgr)
  {
  	return gk20a_gr_new_(&gm20b_gr, device, index, pgr);
  }