text: /*
   * Copyright 2017 Rhys Kidd
   *
   * 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: Rhys Kidd
   */
  #include "priv.h"
  
  static int
  gp100_temp_get(struct nvkm_therm *therm)
  {
  	struct nvkm_device *device = therm->subdev.device;
  	struct nvkm_subdev *subdev = &therm->subdev;
  	u32 tsensor = nvkm_rd32(device, 0x020460);
  	u32 inttemp = (tsensor & 0x0001fff8);
  
  	/* device SHADOWed */
  	if (tsensor & 0x40000000)
  		nvkm_trace(subdev, "reading temperature from SHADOWed sensor\n");
  
  	/* device valid */
  	if (tsensor & 0x20000000)
  		return (inttemp >> 8);
  	else
  		return -ENODEV;
  }
  
  static const struct nvkm_therm_func
  gp100_therm = {
  	.temp_get = gp100_temp_get,
  	.program_alarms = nvkm_therm_program_alarms_polling,
  };
  
  int
  gp100_therm_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
  		struct nvkm_therm **ptherm)
  {
  	return nvkm_therm_new_(&gp100_therm, device, type, inst, ptherm);
  }
  