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/*
* 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);
}
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