335 lines
8.1 KiB
C
335 lines
8.1 KiB
C
/*
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* Copyright 2010 PathScale inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Martin Peres
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*/
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#include <linux/module.h>
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#include "drmP.h"
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#include "nouveau_drv.h"
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#include "nouveau_pm.h"
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static void
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nouveau_temp_vbios_parse(struct drm_device *dev, u8 *temp)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
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struct nouveau_pm_temp_sensor_constants *sensor = &pm->sensor_constants;
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struct nouveau_pm_threshold_temp *temps = &pm->threshold_temp;
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int i, headerlen, recordlen, entries;
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if (!temp) {
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NV_DEBUG(dev, "temperature table pointer invalid\n");
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return;
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}
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/* Set the default sensor's contants */
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sensor->offset_constant = 0;
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sensor->offset_mult = 0;
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sensor->offset_div = 1;
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sensor->slope_mult = 1;
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sensor->slope_div = 1;
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/* Set the default temperature thresholds */
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temps->critical = 110;
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temps->down_clock = 100;
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temps->fan_boost = 90;
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/* Set the default range for the pwm fan */
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pm->fan.min_duty = 30;
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pm->fan.max_duty = 100;
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/* Set the known default values to setup the temperature sensor */
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if (dev_priv->card_type >= NV_40) {
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switch (dev_priv->chipset) {
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case 0x43:
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sensor->offset_mult = 32060;
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sensor->offset_div = 1000;
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sensor->slope_mult = 792;
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sensor->slope_div = 1000;
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break;
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case 0x44:
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case 0x47:
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case 0x4a:
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sensor->offset_mult = 27839;
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sensor->offset_div = 1000;
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sensor->slope_mult = 780;
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sensor->slope_div = 1000;
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break;
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case 0x46:
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sensor->offset_mult = -24775;
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sensor->offset_div = 100;
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sensor->slope_mult = 467;
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sensor->slope_div = 10000;
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break;
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case 0x49:
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sensor->offset_mult = -25051;
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sensor->offset_div = 100;
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sensor->slope_mult = 458;
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sensor->slope_div = 10000;
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break;
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case 0x4b:
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sensor->offset_mult = -24088;
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sensor->offset_div = 100;
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sensor->slope_mult = 442;
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sensor->slope_div = 10000;
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break;
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case 0x50:
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sensor->offset_mult = -22749;
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sensor->offset_div = 100;
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sensor->slope_mult = 431;
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sensor->slope_div = 10000;
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break;
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case 0x67:
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sensor->offset_mult = -26149;
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sensor->offset_div = 100;
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sensor->slope_mult = 484;
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sensor->slope_div = 10000;
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break;
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}
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}
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headerlen = temp[1];
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recordlen = temp[2];
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entries = temp[3];
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temp = temp + headerlen;
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/* Read the entries from the table */
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for (i = 0; i < entries; i++) {
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s16 value = ROM16(temp[1]);
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switch (temp[0]) {
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case 0x01:
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if ((value & 0x8f) == 0)
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sensor->offset_constant = (value >> 9) & 0x7f;
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break;
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case 0x04:
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if ((value & 0xf00f) == 0xa000) /* core */
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temps->critical = (value&0x0ff0) >> 4;
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break;
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case 0x07:
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if ((value & 0xf00f) == 0xa000) /* core */
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temps->down_clock = (value&0x0ff0) >> 4;
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break;
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case 0x08:
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if ((value & 0xf00f) == 0xa000) /* core */
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temps->fan_boost = (value&0x0ff0) >> 4;
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break;
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case 0x10:
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sensor->offset_mult = value;
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break;
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case 0x11:
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sensor->offset_div = value;
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break;
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case 0x12:
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sensor->slope_mult = value;
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break;
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case 0x13:
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sensor->slope_div = value;
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break;
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case 0x22:
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pm->fan.min_duty = value & 0xff;
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pm->fan.max_duty = (value & 0xff00) >> 8;
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break;
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case 0x26:
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pm->fan.pwm_freq = value;
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break;
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}
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temp += recordlen;
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}
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nouveau_temp_safety_checks(dev);
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/* check the fan min/max settings */
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if (pm->fan.min_duty < 10)
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pm->fan.min_duty = 10;
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if (pm->fan.max_duty > 100)
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pm->fan.max_duty = 100;
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if (pm->fan.max_duty < pm->fan.min_duty)
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pm->fan.max_duty = pm->fan.min_duty;
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}
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static int
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nv40_sensor_setup(struct drm_device *dev)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
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struct nouveau_pm_temp_sensor_constants *sensor = &pm->sensor_constants;
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s32 offset = sensor->offset_mult / sensor->offset_div;
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s32 sensor_calibration;
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/* set up the sensors */
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sensor_calibration = 120 - offset - sensor->offset_constant;
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sensor_calibration = sensor_calibration * sensor->slope_div /
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sensor->slope_mult;
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if (dev_priv->chipset >= 0x46)
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sensor_calibration |= 0x80000000;
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else
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sensor_calibration |= 0x10000000;
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nv_wr32(dev, 0x0015b0, sensor_calibration);
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/* Wait for the sensor to update */
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msleep(5);
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/* read */
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return nv_rd32(dev, 0x0015b4) & 0x1fff;
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}
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int
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nv40_temp_get(struct drm_device *dev)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
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struct nouveau_pm_temp_sensor_constants *sensor = &pm->sensor_constants;
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int offset = sensor->offset_mult / sensor->offset_div;
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int core_temp;
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if (dev_priv->card_type >= NV_50) {
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core_temp = nv_rd32(dev, 0x20008);
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} else {
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core_temp = nv_rd32(dev, 0x0015b4) & 0x1fff;
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/* Setup the sensor if the temperature is 0 */
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if (core_temp == 0)
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core_temp = nv40_sensor_setup(dev);
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}
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core_temp = core_temp * sensor->slope_mult / sensor->slope_div;
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core_temp = core_temp + offset + sensor->offset_constant;
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return core_temp;
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}
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int
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nv84_temp_get(struct drm_device *dev)
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{
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return nv_rd32(dev, 0x20400);
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}
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void
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nouveau_temp_safety_checks(struct drm_device *dev)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
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struct nouveau_pm_threshold_temp *temps = &pm->threshold_temp;
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if (temps->critical > 120)
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temps->critical = 120;
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else if (temps->critical < 80)
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temps->critical = 80;
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if (temps->down_clock > 110)
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temps->down_clock = 110;
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else if (temps->down_clock < 60)
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temps->down_clock = 60;
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if (temps->fan_boost > 100)
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temps->fan_boost = 100;
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else if (temps->fan_boost < 40)
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temps->fan_boost = 40;
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}
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static bool
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probe_monitoring_device(struct nouveau_i2c_chan *i2c,
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struct i2c_board_info *info)
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{
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struct i2c_client *client;
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request_module("%s%s", I2C_MODULE_PREFIX, info->type);
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client = i2c_new_device(&i2c->adapter, info);
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if (!client)
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return false;
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if (!client->driver || client->driver->detect(client, info)) {
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i2c_unregister_device(client);
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return false;
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}
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return true;
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}
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static void
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nouveau_temp_probe_i2c(struct drm_device *dev)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct dcb_table *dcb = &dev_priv->vbios.dcb;
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struct i2c_board_info info[] = {
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{ I2C_BOARD_INFO("w83l785ts", 0x2d) },
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{ I2C_BOARD_INFO("w83781d", 0x2d) },
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{ I2C_BOARD_INFO("adt7473", 0x2e) },
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{ I2C_BOARD_INFO("f75375", 0x2e) },
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{ I2C_BOARD_INFO("lm99", 0x4c) },
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{ }
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};
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int idx = (dcb->version >= 0x40 ?
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dcb->i2c_default_indices & 0xf : 2);
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nouveau_i2c_identify(dev, "monitoring device", info,
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probe_monitoring_device, idx);
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}
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void
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nouveau_temp_init(struct drm_device *dev)
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{
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struct drm_nouveau_private *dev_priv = dev->dev_private;
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struct nvbios *bios = &dev_priv->vbios;
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struct bit_entry P;
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u8 *temp = NULL;
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if (bios->type == NVBIOS_BIT) {
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if (bit_table(dev, 'P', &P))
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return;
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if (P.version == 1)
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temp = ROMPTR(bios, P.data[12]);
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else if (P.version == 2)
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temp = ROMPTR(bios, P.data[16]);
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else
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NV_WARN(dev, "unknown temp for BIT P %d\n", P.version);
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nouveau_temp_vbios_parse(dev, temp);
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}
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nouveau_temp_probe_i2c(dev);
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}
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void
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nouveau_temp_fini(struct drm_device *dev)
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{
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}
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