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path: root/drivers/gpu/drm/radeon/radeon_pm.c
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Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_pm.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_pm.c135
1 files changed, 117 insertions, 18 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index 3fa6984d989..f87efec7623 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -27,6 +27,8 @@
#include <linux/acpi.h>
#endif
#include <linux/power_supply.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
#define RADEON_IDLE_LOOP_MS 100
#define RADEON_RECLOCK_DELAY_MS 200
@@ -60,9 +62,9 @@ static int radeon_acpi_event(struct notifier_block *nb,
if (strcmp(entry->device_class, ACPI_AC_CLASS) == 0) {
if (power_supply_is_system_supplied() > 0)
- DRM_DEBUG("pm: AC\n");
+ DRM_DEBUG_DRIVER("pm: AC\n");
else
- DRM_DEBUG("pm: DC\n");
+ DRM_DEBUG_DRIVER("pm: DC\n");
if (rdev->pm.pm_method == PM_METHOD_PROFILE) {
if (rdev->pm.profile == PM_PROFILE_AUTO) {
@@ -196,7 +198,7 @@ static void radeon_set_power_state(struct radeon_device *rdev)
radeon_set_engine_clock(rdev, sclk);
radeon_pm_debug_check_in_vbl(rdev, true);
rdev->pm.current_sclk = sclk;
- DRM_DEBUG("Setting: e: %d\n", sclk);
+ DRM_DEBUG_DRIVER("Setting: e: %d\n", sclk);
}
/* set memory clock */
@@ -205,7 +207,7 @@ static void radeon_set_power_state(struct radeon_device *rdev)
radeon_set_memory_clock(rdev, mclk);
radeon_pm_debug_check_in_vbl(rdev, true);
rdev->pm.current_mclk = mclk;
- DRM_DEBUG("Setting: m: %d\n", mclk);
+ DRM_DEBUG_DRIVER("Setting: m: %d\n", mclk);
}
if (misc_after)
@@ -217,13 +219,18 @@ static void radeon_set_power_state(struct radeon_device *rdev)
rdev->pm.current_power_state_index = rdev->pm.requested_power_state_index;
rdev->pm.current_clock_mode_index = rdev->pm.requested_clock_mode_index;
} else
- DRM_DEBUG("pm: GUI not idle!!!\n");
+ DRM_DEBUG_DRIVER("pm: GUI not idle!!!\n");
}
static void radeon_pm_set_clocks(struct radeon_device *rdev)
{
int i;
+ /* no need to take locks, etc. if nothing's going to change */
+ if ((rdev->pm.requested_clock_mode_index == rdev->pm.current_clock_mode_index) &&
+ (rdev->pm.requested_power_state_index == rdev->pm.current_power_state_index))
+ return;
+
mutex_lock(&rdev->ddev->struct_mutex);
mutex_lock(&rdev->vram_mutex);
mutex_lock(&rdev->cp.mutex);
@@ -292,27 +299,27 @@ static void radeon_pm_print_states(struct radeon_device *rdev)
struct radeon_power_state *power_state;
struct radeon_pm_clock_info *clock_info;
- DRM_DEBUG("%d Power State(s)\n", rdev->pm.num_power_states);
+ DRM_DEBUG_DRIVER("%d Power State(s)\n", rdev->pm.num_power_states);
for (i = 0; i < rdev->pm.num_power_states; i++) {
power_state = &rdev->pm.power_state[i];
- DRM_DEBUG("State %d: %s\n", i,
+ DRM_DEBUG_DRIVER("State %d: %s\n", i,
radeon_pm_state_type_name[power_state->type]);
if (i == rdev->pm.default_power_state_index)
- DRM_DEBUG("\tDefault");
+ DRM_DEBUG_DRIVER("\tDefault");
if ((rdev->flags & RADEON_IS_PCIE) && !(rdev->flags & RADEON_IS_IGP))
- DRM_DEBUG("\t%d PCIE Lanes\n", power_state->pcie_lanes);
+ DRM_DEBUG_DRIVER("\t%d PCIE Lanes\n", power_state->pcie_lanes);
if (power_state->flags & RADEON_PM_STATE_SINGLE_DISPLAY_ONLY)
- DRM_DEBUG("\tSingle display only\n");
- DRM_DEBUG("\t%d Clock Mode(s)\n", power_state->num_clock_modes);
+ DRM_DEBUG_DRIVER("\tSingle display only\n");
+ DRM_DEBUG_DRIVER("\t%d Clock Mode(s)\n", power_state->num_clock_modes);
for (j = 0; j < power_state->num_clock_modes; j++) {
clock_info = &(power_state->clock_info[j]);
if (rdev->flags & RADEON_IS_IGP)
- DRM_DEBUG("\t\t%d e: %d%s\n",
+ DRM_DEBUG_DRIVER("\t\t%d e: %d%s\n",
j,
clock_info->sclk * 10,
clock_info->flags & RADEON_PM_MODE_NO_DISPLAY ? "\tNo display only" : "");
else
- DRM_DEBUG("\t\t%d e: %d\tm: %d\tv: %d%s\n",
+ DRM_DEBUG_DRIVER("\t\t%d e: %d\tm: %d\tv: %d%s\n",
j,
clock_info->sclk * 10,
clock_info->mclk * 10,
@@ -424,6 +431,93 @@ fail:
static DEVICE_ATTR(power_profile, S_IRUGO | S_IWUSR, radeon_get_pm_profile, radeon_set_pm_profile);
static DEVICE_ATTR(power_method, S_IRUGO | S_IWUSR, radeon_get_pm_method, radeon_set_pm_method);
+static ssize_t radeon_hwmon_show_temp(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct drm_device *ddev = pci_get_drvdata(to_pci_dev(dev));
+ struct radeon_device *rdev = ddev->dev_private;
+ u32 temp;
+
+ switch (rdev->pm.int_thermal_type) {
+ case THERMAL_TYPE_RV6XX:
+ temp = rv6xx_get_temp(rdev);
+ break;
+ case THERMAL_TYPE_RV770:
+ temp = rv770_get_temp(rdev);
+ break;
+ case THERMAL_TYPE_EVERGREEN:
+ temp = evergreen_get_temp(rdev);
+ break;
+ default:
+ temp = 0;
+ break;
+ }
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", temp);
+}
+
+static ssize_t radeon_hwmon_show_name(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "radeon\n");
+}
+
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO, radeon_hwmon_show_temp, NULL, 0);
+static SENSOR_DEVICE_ATTR(name, S_IRUGO, radeon_hwmon_show_name, NULL, 0);
+
+static struct attribute *hwmon_attributes[] = {
+ &sensor_dev_attr_temp1_input.dev_attr.attr,
+ &sensor_dev_attr_name.dev_attr.attr,
+ NULL
+};
+
+static const struct attribute_group hwmon_attrgroup = {
+ .attrs = hwmon_attributes,
+};
+
+static int radeon_hwmon_init(struct radeon_device *rdev)
+{
+ int err = 0;
+
+ rdev->pm.int_hwmon_dev = NULL;
+
+ switch (rdev->pm.int_thermal_type) {
+ case THERMAL_TYPE_RV6XX:
+ case THERMAL_TYPE_RV770:
+ case THERMAL_TYPE_EVERGREEN:
+ rdev->pm.int_hwmon_dev = hwmon_device_register(rdev->dev);
+ if (IS_ERR(rdev->pm.int_hwmon_dev)) {
+ err = PTR_ERR(rdev->pm.int_hwmon_dev);
+ dev_err(rdev->dev,
+ "Unable to register hwmon device: %d\n", err);
+ break;
+ }
+ dev_set_drvdata(rdev->pm.int_hwmon_dev, rdev->ddev);
+ err = sysfs_create_group(&rdev->pm.int_hwmon_dev->kobj,
+ &hwmon_attrgroup);
+ if (err) {
+ dev_err(rdev->dev,
+ "Unable to create hwmon sysfs file: %d\n", err);
+ hwmon_device_unregister(rdev->dev);
+ }
+ break;
+ default:
+ break;
+ }
+
+ return err;
+}
+
+static void radeon_hwmon_fini(struct radeon_device *rdev)
+{
+ if (rdev->pm.int_hwmon_dev) {
+ sysfs_remove_group(&rdev->pm.int_hwmon_dev->kobj, &hwmon_attrgroup);
+ hwmon_device_unregister(rdev->pm.int_hwmon_dev);
+ }
+}
+
void radeon_pm_suspend(struct radeon_device *rdev)
{
bool flush_wq = false;
@@ -462,6 +556,7 @@ void radeon_pm_resume(struct radeon_device *rdev)
int radeon_pm_init(struct radeon_device *rdev)
{
int ret;
+
/* default to profile method */
rdev->pm.pm_method = PM_METHOD_PROFILE;
rdev->pm.profile = PM_PROFILE_DEFAULT;
@@ -471,6 +566,7 @@ int radeon_pm_init(struct radeon_device *rdev)
rdev->pm.dynpm_can_downclock = true;
rdev->pm.current_sclk = rdev->clock.default_sclk;
rdev->pm.current_mclk = rdev->clock.default_mclk;
+ rdev->pm.int_thermal_type = THERMAL_TYPE_NONE;
if (rdev->bios) {
if (rdev->is_atom_bios)
@@ -481,6 +577,10 @@ int radeon_pm_init(struct radeon_device *rdev)
radeon_pm_init_profile(rdev);
}
+ /* set up the internal thermal sensor if applicable */
+ ret = radeon_hwmon_init(rdev);
+ if (ret)
+ return ret;
if (rdev->pm.num_power_states > 1) {
/* where's the best place to put these? */
ret = device_create_file(rdev->dev, &dev_attr_power_profile);
@@ -536,8 +636,7 @@ void radeon_pm_fini(struct radeon_device *rdev)
#endif
}
- if (rdev->pm.i2c_bus)
- radeon_i2c_destroy(rdev->pm.i2c_bus);
+ radeon_hwmon_fini(rdev);
}
void radeon_pm_compute_clocks(struct radeon_device *rdev)
@@ -576,7 +675,7 @@ void radeon_pm_compute_clocks(struct radeon_device *rdev)
radeon_pm_get_dynpm_state(rdev);
radeon_pm_set_clocks(rdev);
- DRM_DEBUG("radeon: dynamic power management deactivated\n");
+ DRM_DEBUG_DRIVER("radeon: dynamic power management deactivated\n");
}
} else if (rdev->pm.active_crtc_count == 1) {
/* TODO: Increase clocks if needed for current mode */
@@ -593,7 +692,7 @@ void radeon_pm_compute_clocks(struct radeon_device *rdev)
rdev->pm.dynpm_state = DYNPM_STATE_ACTIVE;
queue_delayed_work(rdev->wq, &rdev->pm.dynpm_idle_work,
msecs_to_jiffies(RADEON_IDLE_LOOP_MS));
- DRM_DEBUG("radeon: dynamic power management activated\n");
+ DRM_DEBUG_DRIVER("radeon: dynamic power management activated\n");
}
} else { /* count == 0 */
if (rdev->pm.dynpm_state != DYNPM_STATE_MINIMUM) {
@@ -689,7 +788,7 @@ static bool radeon_pm_debug_check_in_vbl(struct radeon_device *rdev, bool finish
bool in_vbl = radeon_pm_in_vbl(rdev);
if (in_vbl == false)
- DRM_DEBUG("not in vbl for pm change %08x at %s\n", stat_crtc,
+ DRM_DEBUG_DRIVER("not in vbl for pm change %08x at %s\n", stat_crtc,
finish ? "exit" : "entry");
return in_vbl;
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-21 05:30:26 +0000