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kernel/linux-rt-4.4.41/drivers/gpu/drm/nouveau/nvkm/engine/fifo/nv40.c 4.11 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 "nv04.h"
  #include "channv04.h"
  #include "regsnv04.h"
  
  #include <core/ramht.h>
  #include <subdev/fb.h>
  #include <subdev/instmem.h>
  
  static const struct nv04_fifo_ramfc
  nv40_fifo_ramfc[] = {
  	{ 32,  0, 0x00,  0, NV04_PFIFO_CACHE1_DMA_PUT },
  	{ 32,  0, 0x04,  0, NV04_PFIFO_CACHE1_DMA_GET },
  	{ 32,  0, 0x08,  0, NV10_PFIFO_CACHE1_REF_CNT },
  	{ 32,  0, 0x0c,  0, NV04_PFIFO_CACHE1_DMA_INSTANCE },
  	{ 32,  0, 0x10,  0, NV04_PFIFO_CACHE1_DMA_DCOUNT },
  	{ 32,  0, 0x14,  0, NV04_PFIFO_CACHE1_DMA_STATE },
  	{ 28,  0, 0x18,  0, NV04_PFIFO_CACHE1_DMA_FETCH },
  	{  2, 28, 0x18, 28, 0x002058 },
  	{ 32,  0, 0x1c,  0, NV04_PFIFO_CACHE1_ENGINE },
  	{ 32,  0, 0x20,  0, NV04_PFIFO_CACHE1_PULL1 },
  	{ 32,  0, 0x24,  0, NV10_PFIFO_CACHE1_ACQUIRE_VALUE },
  	{ 32,  0, 0x28,  0, NV10_PFIFO_CACHE1_ACQUIRE_TIMESTAMP },
  	{ 32,  0, 0x2c,  0, NV10_PFIFO_CACHE1_ACQUIRE_TIMEOUT },
  	{ 32,  0, 0x30,  0, NV10_PFIFO_CACHE1_SEMAPHORE },
  	{ 32,  0, 0x34,  0, NV10_PFIFO_CACHE1_DMA_SUBROUTINE },
  	{ 32,  0, 0x38,  0, NV40_PFIFO_GRCTX_INSTANCE },
  	{ 17,  0, 0x3c,  0, NV04_PFIFO_DMA_TIMESLICE },
  	{ 32,  0, 0x40,  0, 0x0032e4 },
  	{ 32,  0, 0x44,  0, 0x0032e8 },
  	{ 32,  0, 0x4c,  0, 0x002088 },
  	{ 32,  0, 0x50,  0, 0x003300 },
  	{ 32,  0, 0x54,  0, 0x00330c },
  	{}
  };
  
  static void
  nv40_fifo_init(struct nvkm_fifo *base)
  {
  	struct nv04_fifo *fifo = nv04_fifo(base);
  	struct nvkm_device *device = fifo->base.engine.subdev.device;
  	struct nvkm_fb *fb = device->fb;
  	struct nvkm_instmem *imem = device->imem;
  	struct nvkm_ramht *ramht = imem->ramht;
  	struct nvkm_memory *ramro = imem->ramro;
  	struct nvkm_memory *ramfc = imem->ramfc;
  
  	nvkm_wr32(device, 0x002040, 0x000000ff);
  	nvkm_wr32(device, 0x002044, 0x2101ffff);
  	nvkm_wr32(device, 0x002058, 0x00000001);
  
  	nvkm_wr32(device, NV03_PFIFO_RAMHT, (0x03 << 24) /* search 128 */ |
  					    ((ramht->bits - 9) << 16) |
  					    (ramht->gpuobj->addr >> 8));
  	nvkm_wr32(device, NV03_PFIFO_RAMRO, nvkm_memory_addr(ramro) >> 8);
  
  	switch (device->chipset) {
  	case 0x47:
  	case 0x49:
  	case 0x4b:
  		nvkm_wr32(device, 0x002230, 0x00000001);
  	case 0x40:
  	case 0x41:
  	case 0x42:
  	case 0x43:
  	case 0x45:
  	case 0x48:
  		nvkm_wr32(device, 0x002220, 0x00030002);
  		break;
  	default:
  		nvkm_wr32(device, 0x002230, 0x00000000);
  		nvkm_wr32(device, 0x002220, ((fb->ram->size - 512 * 1024 +
  					      nvkm_memory_addr(ramfc)) >> 16) |
  					    0x00030000);
  		break;
  	}
  
  	nvkm_wr32(device, NV03_PFIFO_CACHE1_PUSH1, fifo->base.nr - 1);
  
  	nvkm_wr32(device, NV03_PFIFO_INTR_0, 0xffffffff);
  	nvkm_wr32(device, NV03_PFIFO_INTR_EN_0, 0xffffffff);
  
  	nvkm_wr32(device, NV03_PFIFO_CACHE1_PUSH0, 1);
  	nvkm_wr32(device, NV04_PFIFO_CACHE1_PULL0, 1);
  	nvkm_wr32(device, NV03_PFIFO_CACHES, 1);
  }
  
  static const struct nvkm_fifo_func
  nv40_fifo = {
  	.init = nv40_fifo_init,
  	.intr = nv04_fifo_intr,
  	.pause = nv04_fifo_pause,
  	.start = nv04_fifo_start,
  	.chan = {
  		&nv40_fifo_dma_oclass,
  		NULL
  	},
  };
  
  int
  nv40_fifo_new(struct nvkm_device *device, int index, struct nvkm_fifo **pfifo)
  {
  	return nv04_fifo_new_(&nv40_fifo, device, index, 32,
  			      nv40_fifo_ramfc, pfifo);
  }