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authorBen Skeggs <bskeggs@redhat.com>2015-01-13 22:13:14 +1000
committerBen Skeggs <bskeggs@redhat.com>2015-01-22 12:15:10 +1000
commitc39f472e9f14e49a9bc091977ced0ec45fc00c57 (patch)
tree75af3291cccda2482913cc0044888a8a86f4841b /drivers/gpu/drm/nouveau/core/subdev/therm/temp.c
parentdrm/nouveau: merge nouveau_platform.ko into nouveau.ko (diff)
downloadlinux-dev-c39f472e9f14e49a9bc091977ced0ec45fc00c57.tar.xz
linux-dev-c39f472e9f14e49a9bc091977ced0ec45fc00c57.zip
drm/nouveau: remove symlinks, move core/ to nvkm/ (no code changes)
The symlinks were annoying some people, and they're not used anywhere else in the kernel tree. The include directory structure has been changed so that symlinks aren't needed anymore. NVKM has been moved from core/ to nvkm/ to make it more obvious as to what the directory is for, and as some minor prep for when NVKM gets split out into its own module (virt) at a later date. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/therm/temp.c')
-rw-r--r--drivers/gpu/drm/nouveau/core/subdev/therm/temp.c264
1 files changed, 0 insertions, 264 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/therm/temp.c b/drivers/gpu/drm/nouveau/core/subdev/therm/temp.c
deleted file mode 100644
index 6212537b90c5..000000000000
--- a/drivers/gpu/drm/nouveau/core/subdev/therm/temp.c
+++ /dev/null
@@ -1,264 +0,0 @@
-/*
- * Copyright 2012 The Nouveau community
- *
- * 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: Martin Peres
- */
-
-#include "priv.h"
-
-#include <core/object.h>
-#include <core/device.h>
-
-#include <subdev/bios.h>
-
-static void
-nouveau_therm_temp_set_defaults(struct nouveau_therm *therm)
-{
- struct nouveau_therm_priv *priv = (void *)therm;
-
- priv->bios_sensor.offset_constant = 0;
-
- priv->bios_sensor.thrs_fan_boost.temp = 90;
- priv->bios_sensor.thrs_fan_boost.hysteresis = 3;
-
- priv->bios_sensor.thrs_down_clock.temp = 95;
- priv->bios_sensor.thrs_down_clock.hysteresis = 3;
-
- priv->bios_sensor.thrs_critical.temp = 105;
- priv->bios_sensor.thrs_critical.hysteresis = 5;
-
- priv->bios_sensor.thrs_shutdown.temp = 135;
- priv->bios_sensor.thrs_shutdown.hysteresis = 5; /*not that it matters */
-}
-
-
-static void
-nouveau_therm_temp_safety_checks(struct nouveau_therm *therm)
-{
- struct nouveau_therm_priv *priv = (void *)therm;
- struct nvbios_therm_sensor *s = &priv->bios_sensor;
-
- /* enforce a minimum hysteresis on thresholds */
- s->thrs_fan_boost.hysteresis = max_t(u8, s->thrs_fan_boost.hysteresis, 2);
- s->thrs_down_clock.hysteresis = max_t(u8, s->thrs_down_clock.hysteresis, 2);
- s->thrs_critical.hysteresis = max_t(u8, s->thrs_critical.hysteresis, 2);
- s->thrs_shutdown.hysteresis = max_t(u8, s->thrs_shutdown.hysteresis, 2);
-}
-
-/* must be called with alarm_program_lock taken ! */
-void nouveau_therm_sensor_set_threshold_state(struct nouveau_therm *therm,
- enum nouveau_therm_thrs thrs,
- enum nouveau_therm_thrs_state st)
-{
- struct nouveau_therm_priv *priv = (void *)therm;
- priv->sensor.alarm_state[thrs] = st;
-}
-
-/* must be called with alarm_program_lock taken ! */
-enum nouveau_therm_thrs_state
-nouveau_therm_sensor_get_threshold_state(struct nouveau_therm *therm,
- enum nouveau_therm_thrs thrs)
-{
- struct nouveau_therm_priv *priv = (void *)therm;
- return priv->sensor.alarm_state[thrs];
-}
-
-static void
-nv_poweroff_work(struct work_struct *work)
-{
- orderly_poweroff(true);
- kfree(work);
-}
-
-void nouveau_therm_sensor_event(struct nouveau_therm *therm,
- enum nouveau_therm_thrs thrs,
- enum nouveau_therm_thrs_direction dir)
-{
- struct nouveau_therm_priv *priv = (void *)therm;
- bool active;
- const char *thresolds[] = {
- "fanboost", "downclock", "critical", "shutdown"
- };
- int temperature = therm->temp_get(therm);
-
- if (thrs < 0 || thrs > 3)
- return;
-
- if (dir == NOUVEAU_THERM_THRS_FALLING)
- nv_info(therm, "temperature (%i C) went below the '%s' threshold\n",
- temperature, thresolds[thrs]);
- else
- nv_info(therm, "temperature (%i C) hit the '%s' threshold\n",
- temperature, thresolds[thrs]);
-
- active = (dir == NOUVEAU_THERM_THRS_RISING);
- switch (thrs) {
- case NOUVEAU_THERM_THRS_FANBOOST:
- if (active) {
- nouveau_therm_fan_set(therm, true, 100);
- nouveau_therm_fan_mode(therm, NOUVEAU_THERM_CTRL_AUTO);
- }
- break;
- case NOUVEAU_THERM_THRS_DOWNCLOCK:
- if (priv->emergency.downclock)
- priv->emergency.downclock(therm, active);
- break;
- case NOUVEAU_THERM_THRS_CRITICAL:
- if (priv->emergency.pause)
- priv->emergency.pause(therm, active);
- break;
- case NOUVEAU_THERM_THRS_SHUTDOWN:
- if (active) {
- struct work_struct *work;
-
- work = kmalloc(sizeof(*work), GFP_ATOMIC);
- if (work) {
- INIT_WORK(work, nv_poweroff_work);
- schedule_work(work);
- }
- }
- break;
- case NOUVEAU_THERM_THRS_NR:
- break;
- }
-
-}
-
-/* must be called with alarm_program_lock taken ! */
-static void
-nouveau_therm_threshold_hyst_polling(struct nouveau_therm *therm,
- const struct nvbios_therm_threshold *thrs,
- enum nouveau_therm_thrs thrs_name)
-{
- enum nouveau_therm_thrs_direction direction;
- enum nouveau_therm_thrs_state prev_state, new_state;
- int temp = therm->temp_get(therm);
-
- prev_state = nouveau_therm_sensor_get_threshold_state(therm, thrs_name);
-
- if (temp >= thrs->temp && prev_state == NOUVEAU_THERM_THRS_LOWER) {
- direction = NOUVEAU_THERM_THRS_RISING;
- new_state = NOUVEAU_THERM_THRS_HIGHER;
- } else if (temp <= thrs->temp - thrs->hysteresis &&
- prev_state == NOUVEAU_THERM_THRS_HIGHER) {
- direction = NOUVEAU_THERM_THRS_FALLING;
- new_state = NOUVEAU_THERM_THRS_LOWER;
- } else
- return; /* nothing to do */
-
- nouveau_therm_sensor_set_threshold_state(therm, thrs_name, new_state);
- nouveau_therm_sensor_event(therm, thrs_name, direction);
-}
-
-static void
-alarm_timer_callback(struct nouveau_alarm *alarm)
-{
- struct nouveau_therm_priv *priv =
- container_of(alarm, struct nouveau_therm_priv, sensor.therm_poll_alarm);
- struct nvbios_therm_sensor *sensor = &priv->bios_sensor;
- struct nouveau_timer *ptimer = nouveau_timer(priv);
- struct nouveau_therm *therm = &priv->base;
- unsigned long flags;
-
- spin_lock_irqsave(&priv->sensor.alarm_program_lock, flags);
-
- nouveau_therm_threshold_hyst_polling(therm, &sensor->thrs_fan_boost,
- NOUVEAU_THERM_THRS_FANBOOST);
-
- nouveau_therm_threshold_hyst_polling(therm, &sensor->thrs_down_clock,
- NOUVEAU_THERM_THRS_DOWNCLOCK);
-
- nouveau_therm_threshold_hyst_polling(therm, &sensor->thrs_critical,
- NOUVEAU_THERM_THRS_CRITICAL);
-
- nouveau_therm_threshold_hyst_polling(therm, &sensor->thrs_shutdown,
- NOUVEAU_THERM_THRS_SHUTDOWN);
-
- spin_unlock_irqrestore(&priv->sensor.alarm_program_lock, flags);
-
- /* schedule the next poll in one second */
- if (therm->temp_get(therm) >= 0 && list_empty(&alarm->head))
- ptimer->alarm(ptimer, 1000000000ULL, alarm);
-}
-
-void
-nouveau_therm_program_alarms_polling(struct nouveau_therm *therm)
-{
- struct nouveau_therm_priv *priv = (void *)therm;
- struct nvbios_therm_sensor *sensor = &priv->bios_sensor;
-
- nv_debug(therm,
- "programmed thresholds [ %d(%d), %d(%d), %d(%d), %d(%d) ]\n",
- sensor->thrs_fan_boost.temp, sensor->thrs_fan_boost.hysteresis,
- sensor->thrs_down_clock.temp,
- sensor->thrs_down_clock.hysteresis,
- sensor->thrs_critical.temp, sensor->thrs_critical.hysteresis,
- sensor->thrs_shutdown.temp, sensor->thrs_shutdown.hysteresis);
-
- alarm_timer_callback(&priv->sensor.therm_poll_alarm);
-}
-
-int
-nouveau_therm_sensor_init(struct nouveau_therm *therm)
-{
- struct nouveau_therm_priv *priv = (void *)therm;
- priv->sensor.program_alarms(therm);
- return 0;
-}
-
-int
-nouveau_therm_sensor_fini(struct nouveau_therm *therm, bool suspend)
-{
- struct nouveau_therm_priv *priv = (void *)therm;
- struct nouveau_timer *ptimer = nouveau_timer(therm);
-
- if (suspend)
- ptimer->alarm_cancel(ptimer, &priv->sensor.therm_poll_alarm);
- return 0;
-}
-
-void
-nouveau_therm_sensor_preinit(struct nouveau_therm *therm)
-{
- const char *sensor_avail = "yes";
-
- if (therm->temp_get(therm) < 0)
- sensor_avail = "no";
-
- nv_info(therm, "internal sensor: %s\n", sensor_avail);
-}
-
-int
-nouveau_therm_sensor_ctor(struct nouveau_therm *therm)
-{
- struct nouveau_therm_priv *priv = (void *)therm;
- struct nouveau_bios *bios = nouveau_bios(therm);
-
- nouveau_alarm_init(&priv->sensor.therm_poll_alarm, alarm_timer_callback);
-
- nouveau_therm_temp_set_defaults(therm);
- if (nvbios_therm_sensor_parse(bios, NVBIOS_THERM_DOMAIN_CORE,
- &priv->bios_sensor))
- nv_error(therm, "nvbios_therm_sensor_parse failed\n");
- nouveau_therm_temp_safety_checks(therm);
-
- return 0;
-}