text: /*
   * 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 "head.h"
  
  static const struct nvkm_disp_oclass *
  nv04_disp_root(struct nvkm_disp *disp)
  {
  	return &nv04_disp_root_oclass;
  }
  
  static void
  nv04_disp_intr(struct nvkm_disp *disp)
  {
  	struct nvkm_subdev *subdev = &disp->engine.subdev;
  	struct nvkm_device *device = subdev->device;
  	u32 crtc0 = nvkm_rd32(device, 0x600100);
  	u32 crtc1 = nvkm_rd32(device, 0x602100);
  	u32 pvideo;
  
  	if (crtc0 & 0x00000001) {
  		nvkm_disp_vblank(disp, 0);
  		nvkm_wr32(device, 0x600100, 0x00000001);
  	}
  
  	if (crtc1 & 0x00000001) {
  		nvkm_disp_vblank(disp, 1);
  		nvkm_wr32(device, 0x602100, 0x00000001);
  	}
  
  	if (device->chipset >= 0x10 && device->chipset <= 0x40) {
  		pvideo = nvkm_rd32(device, 0x8100);
  		if (pvideo & ~0x11)
  			nvkm_info(subdev, "PVIDEO intr: %08x\n", pvideo);
  		nvkm_wr32(device, 0x8100, pvideo);
  	}
  }
  
  static const struct nvkm_disp_func
  nv04_disp = {
  	.intr = nv04_disp_intr,
  	.root = nv04_disp_root,
  };
  
  int
  nv04_disp_new(struct nvkm_device *device, int index, struct nvkm_disp **pdisp)
  {
  	int ret, i;
  
  	ret = nvkm_disp_new_(&nv04_disp, device, index, pdisp);
  	if (ret)
  		return ret;
  
  	for (i = 0; i < 2; i++) {
  		ret = nv04_head_new(*pdisp, i);
  		if (ret)
  			return ret;
  	}
  
  	return 0;
  }
  