62 lines · c
1/*2 * Copyright 2017 Rhys Kidd3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Authors: Rhys Kidd23 */24#include "priv.h"25 26#include <subdev/gsp.h>27 28static int29gp100_temp_get(struct nvkm_therm *therm)30{31 struct nvkm_device *device = therm->subdev.device;32 struct nvkm_subdev *subdev = &therm->subdev;33 u32 tsensor = nvkm_rd32(device, 0x020460);34 u32 inttemp = (tsensor & 0x0001fff8);35 36 /* device SHADOWed */37 if (tsensor & 0x40000000)38 nvkm_trace(subdev, "reading temperature from SHADOWed sensor\n");39 40 /* device valid */41 if (tsensor & 0x20000000)42 return (inttemp >> 8);43 else44 return -ENODEV;45}46 47static const struct nvkm_therm_func48gp100_therm = {49 .temp_get = gp100_temp_get,50 .program_alarms = nvkm_therm_program_alarms_polling,51};52 53int54gp100_therm_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,55 struct nvkm_therm **ptherm)56{57 if (nvkm_gsp_rm(device->gsp))58 return -ENODEV;59 60 return nvkm_therm_new_(&gp100_therm, device, type, inst, ptherm);61}62