cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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gm107.c (2482B)

      1/*
      2 * Copyright 2014 Martin Peres
      3 *
      4 * Permission is hereby granted, free of charge, to any person obtaining a
      5 * copy of this software and associated documentation files (the "Software"),
      6 * to deal in the Software without restriction, including without limitation
      7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8 * and/or sell copies of the Software, and to permit persons to whom the
      9 * Software is furnished to do so, subject to the following conditions:
     10 *
     11 * The above copyright notice and this permission notice shall be included in
     12 * all copies or substantial portions of the Software.
     13 *
     14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     18 * 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 OR
     20 * OTHER DEALINGS IN THE SOFTWARE.
     21 *
     22 * Authors: Martin Peres
     23 */
     24#include "priv.h"
     25
     26static int
     27gm107_fan_pwm_ctrl(struct nvkm_therm *therm, int line, bool enable)
     28{
     29	/* nothing to do, it seems hardwired */
     30	return 0;
     31}
     32
     33static int
     34gm107_fan_pwm_get(struct nvkm_therm *therm, int line, u32 *divs, u32 *duty)
     35{
     36	struct nvkm_device *device = therm->subdev.device;
     37	*divs = nvkm_rd32(device, 0x10eb20) & 0x1fff;
     38	*duty = nvkm_rd32(device, 0x10eb24) & 0x1fff;
     39	return 0;
     40}
     41
     42static int
     43gm107_fan_pwm_set(struct nvkm_therm *therm, int line, u32 divs, u32 duty)
     44{
     45	struct nvkm_device *device = therm->subdev.device;
     46	nvkm_mask(device, 0x10eb10, 0x1fff, divs); /* keep the high bits */
     47	nvkm_wr32(device, 0x10eb14, duty | 0x80000000);
     48	return 0;
     49}
     50
     51static int
     52gm107_fan_pwm_clock(struct nvkm_therm *therm, int line)
     53{
     54	return therm->subdev.device->crystal * 1000;
     55}
     56
     57static const struct nvkm_therm_func
     58gm107_therm = {
     59	.init = gf119_therm_init,
     60	.fini = g84_therm_fini,
     61	.pwm_ctrl = gm107_fan_pwm_ctrl,
     62	.pwm_get = gm107_fan_pwm_get,
     63	.pwm_set = gm107_fan_pwm_set,
     64	.pwm_clock = gm107_fan_pwm_clock,
     65	.temp_get = g84_temp_get,
     66	.fan_sense = gt215_therm_fan_sense,
     67	.program_alarms = nvkm_therm_program_alarms_polling,
     68};
     69
     70int
     71gm107_therm_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
     72		struct nvkm_therm **ptherm)
     73{
     74	return nvkm_therm_new_(&gm107_therm, device, type, inst, ptherm);
     75}