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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.c249
1 files changed, 207 insertions, 42 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index 02281269a881..58038f5cab38 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -27,12 +27,22 @@
#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
#define RADEON_WAIT_VBLANK_TIMEOUT 200
#define RADEON_WAIT_IDLE_TIMEOUT 200
+static const char *radeon_pm_state_type_name[5] = {
+ "Default",
+ "Powersave",
+ "Battery",
+ "Balanced",
+ "Performance",
+};
+
static void radeon_dynpm_idle_work_handler(struct work_struct *work);
static int radeon_debugfs_pm_init(struct radeon_device *rdev);
static bool radeon_pm_in_vbl(struct radeon_device *rdev);
@@ -52,9 +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) {
@@ -84,9 +94,9 @@ static void radeon_pm_update_profile(struct radeon_device *rdev)
rdev->pm.profile_index = PM_PROFILE_HIGH_SH_IDX;
} else {
if (rdev->pm.active_crtc_count > 1)
- rdev->pm.profile_index = PM_PROFILE_LOW_MH_IDX;
+ rdev->pm.profile_index = PM_PROFILE_MID_MH_IDX;
else
- rdev->pm.profile_index = PM_PROFILE_LOW_SH_IDX;
+ rdev->pm.profile_index = PM_PROFILE_MID_SH_IDX;
}
break;
case PM_PROFILE_LOW:
@@ -95,6 +105,12 @@ static void radeon_pm_update_profile(struct radeon_device *rdev)
else
rdev->pm.profile_index = PM_PROFILE_LOW_SH_IDX;
break;
+ case PM_PROFILE_MID:
+ if (rdev->pm.active_crtc_count > 1)
+ rdev->pm.profile_index = PM_PROFILE_MID_MH_IDX;
+ else
+ rdev->pm.profile_index = PM_PROFILE_MID_SH_IDX;
+ break;
case PM_PROFILE_HIGH:
if (rdev->pm.active_crtc_count > 1)
rdev->pm.profile_index = PM_PROFILE_HIGH_MH_IDX;
@@ -127,15 +143,6 @@ static void radeon_unmap_vram_bos(struct radeon_device *rdev)
if (bo->tbo.mem.mem_type == TTM_PL_VRAM)
ttm_bo_unmap_virtual(&bo->tbo);
}
-
- if (rdev->gart.table.vram.robj)
- ttm_bo_unmap_virtual(&rdev->gart.table.vram.robj->tbo);
-
- if (rdev->stollen_vga_memory)
- ttm_bo_unmap_virtual(&rdev->stollen_vga_memory->tbo);
-
- if (rdev->r600_blit.shader_obj)
- ttm_bo_unmap_virtual(&rdev->r600_blit.shader_obj->tbo);
}
static void radeon_sync_with_vblank(struct radeon_device *rdev)
@@ -191,7 +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 */
@@ -200,7 +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)
@@ -212,7 +219,7 @@ 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)
@@ -281,6 +288,42 @@ static void radeon_pm_set_clocks(struct radeon_device *rdev)
mutex_unlock(&rdev->ddev->struct_mutex);
}
+static void radeon_pm_print_states(struct radeon_device *rdev)
+{
+ int i, j;
+ struct radeon_power_state *power_state;
+ struct radeon_pm_clock_info *clock_info;
+
+ 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_DRIVER("State %d: %s\n", i,
+ radeon_pm_state_type_name[power_state->type]);
+ if (i == rdev->pm.default_power_state_index)
+ DRM_DEBUG_DRIVER("\tDefault");
+ if ((rdev->flags & RADEON_IS_PCIE) && !(rdev->flags & RADEON_IS_IGP))
+ DRM_DEBUG_DRIVER("\t%d PCIE Lanes\n", power_state->pcie_lanes);
+ if (power_state->flags & RADEON_PM_STATE_SINGLE_DISPLAY_ONLY)
+ 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_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_DRIVER("\t\t%d e: %d\tm: %d\tv: %d%s\n",
+ j,
+ clock_info->sclk * 10,
+ clock_info->mclk * 10,
+ clock_info->voltage.voltage,
+ clock_info->flags & RADEON_PM_MODE_NO_DISPLAY ? "\tNo display only" : "");
+ }
+ }
+}
+
static ssize_t radeon_get_pm_profile(struct device *dev,
struct device_attribute *attr,
char *buf)
@@ -292,6 +335,7 @@ static ssize_t radeon_get_pm_profile(struct device *dev,
return snprintf(buf, PAGE_SIZE, "%s\n",
(cp == PM_PROFILE_AUTO) ? "auto" :
(cp == PM_PROFILE_LOW) ? "low" :
+ (cp == PM_PROFILE_MID) ? "mid" :
(cp == PM_PROFILE_HIGH) ? "high" : "default");
}
@@ -311,6 +355,8 @@ static ssize_t radeon_set_pm_profile(struct device *dev,
rdev->pm.profile = PM_PROFILE_AUTO;
else if (strncmp("low", buf, strlen("low")) == 0)
rdev->pm.profile = PM_PROFILE_LOW;
+ else if (strncmp("mid", buf, strlen("mid")) == 0)
+ rdev->pm.profile = PM_PROFILE_MID;
else if (strncmp("high", buf, strlen("high")) == 0)
rdev->pm.profile = PM_PROFILE_HIGH;
else {
@@ -354,13 +400,20 @@ static ssize_t radeon_set_pm_method(struct device *dev,
rdev->pm.dynpm_planned_action = DYNPM_ACTION_DEFAULT;
mutex_unlock(&rdev->pm.mutex);
} else if (strncmp("profile", buf, strlen("profile")) == 0) {
+ bool flush_wq = false;
+
mutex_lock(&rdev->pm.mutex);
- rdev->pm.pm_method = PM_METHOD_PROFILE;
+ if (rdev->pm.pm_method == PM_METHOD_DYNPM) {
+ cancel_delayed_work(&rdev->pm.dynpm_idle_work);
+ flush_wq = true;
+ }
/* disable dynpm */
rdev->pm.dynpm_state = DYNPM_STATE_DISABLED;
rdev->pm.dynpm_planned_action = DYNPM_ACTION_NONE;
- cancel_delayed_work(&rdev->pm.dynpm_idle_work);
+ rdev->pm.pm_method = PM_METHOD_PROFILE;
mutex_unlock(&rdev->pm.mutex);
+ if (flush_wq)
+ flush_workqueue(rdev->wq);
} else {
DRM_ERROR("invalid power method!\n");
goto fail;
@@ -373,53 +426,157 @@ 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;
+
mutex_lock(&rdev->pm.mutex);
- cancel_delayed_work(&rdev->pm.dynpm_idle_work);
- rdev->pm.current_power_state_index = -1;
- rdev->pm.current_clock_mode_index = -1;
- rdev->pm.current_sclk = 0;
- rdev->pm.current_mclk = 0;
+ if (rdev->pm.pm_method == PM_METHOD_DYNPM) {
+ cancel_delayed_work(&rdev->pm.dynpm_idle_work);
+ if (rdev->pm.dynpm_state == DYNPM_STATE_ACTIVE)
+ rdev->pm.dynpm_state = DYNPM_STATE_SUSPENDED;
+ flush_wq = true;
+ }
mutex_unlock(&rdev->pm.mutex);
+ if (flush_wq)
+ flush_workqueue(rdev->wq);
}
void radeon_pm_resume(struct radeon_device *rdev)
{
+ /* asic init will reset the default power state */
+ mutex_lock(&rdev->pm.mutex);
+ rdev->pm.current_power_state_index = rdev->pm.default_power_state_index;
+ rdev->pm.current_clock_mode_index = 0;
+ rdev->pm.current_sclk = rdev->clock.default_sclk;
+ rdev->pm.current_mclk = rdev->clock.default_mclk;
+ rdev->pm.current_vddc = rdev->pm.power_state[rdev->pm.default_power_state_index].clock_info[0].voltage.voltage;
+ if (rdev->pm.pm_method == PM_METHOD_DYNPM
+ && rdev->pm.dynpm_state == DYNPM_STATE_SUSPENDED) {
+ rdev->pm.dynpm_state = DYNPM_STATE_ACTIVE;
+ queue_delayed_work(rdev->wq, &rdev->pm.dynpm_idle_work,
+ msecs_to_jiffies(RADEON_IDLE_LOOP_MS));
+ }
+ mutex_unlock(&rdev->pm.mutex);
radeon_pm_compute_clocks(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;
rdev->pm.dynpm_state = DYNPM_STATE_DISABLED;
rdev->pm.dynpm_planned_action = DYNPM_ACTION_NONE;
rdev->pm.dynpm_can_upclock = true;
rdev->pm.dynpm_can_downclock = true;
- rdev->pm.current_sclk = 0;
- rdev->pm.current_mclk = 0;
+ 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)
radeon_atombios_get_power_modes(rdev);
else
radeon_combios_get_power_modes(rdev);
+ radeon_pm_print_states(rdev);
radeon_pm_init_profile(rdev);
- rdev->pm.current_power_state_index = -1;
- rdev->pm.current_clock_mode_index = -1;
}
+ /* set up the internal thermal sensor if applicable */
+ ret = radeon_hwmon_init(rdev);
+ if (ret)
+ return ret;
if (rdev->pm.num_power_states > 1) {
- if (rdev->pm.pm_method == PM_METHOD_PROFILE) {
- mutex_lock(&rdev->pm.mutex);
- rdev->pm.profile = PM_PROFILE_DEFAULT;
- radeon_pm_update_profile(rdev);
- radeon_pm_set_clocks(rdev);
- mutex_unlock(&rdev->pm.mutex);
- }
-
/* where's the best place to put these? */
ret = device_create_file(rdev->dev, &dev_attr_power_profile);
if (ret)
@@ -447,6 +604,8 @@ int radeon_pm_init(struct radeon_device *rdev)
void radeon_pm_fini(struct radeon_device *rdev)
{
if (rdev->pm.num_power_states > 1) {
+ bool flush_wq = false;
+
mutex_lock(&rdev->pm.mutex);
if (rdev->pm.pm_method == PM_METHOD_PROFILE) {
rdev->pm.profile = PM_PROFILE_DEFAULT;
@@ -454,13 +613,16 @@ void radeon_pm_fini(struct radeon_device *rdev)
radeon_pm_set_clocks(rdev);
} else if (rdev->pm.pm_method == PM_METHOD_DYNPM) {
/* cancel work */
- cancel_delayed_work_sync(&rdev->pm.dynpm_idle_work);
+ cancel_delayed_work(&rdev->pm.dynpm_idle_work);
+ flush_wq = true;
/* reset default clocks */
rdev->pm.dynpm_state = DYNPM_STATE_DISABLED;
rdev->pm.dynpm_planned_action = DYNPM_ACTION_DEFAULT;
radeon_pm_set_clocks(rdev);
}
mutex_unlock(&rdev->pm.mutex);
+ if (flush_wq)
+ flush_workqueue(rdev->wq);
device_remove_file(rdev->dev, &dev_attr_power_profile);
device_remove_file(rdev->dev, &dev_attr_power_method);
@@ -469,6 +631,7 @@ void radeon_pm_fini(struct radeon_device *rdev)
#endif
}
+ radeon_hwmon_fini(rdev);
if (rdev->pm.i2c_bus)
radeon_i2c_destroy(rdev->pm.i2c_bus);
}
@@ -509,7 +672,7 @@ 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 */
@@ -526,7 +689,7 @@ 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) {
@@ -622,7 +785,7 @@ 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;
}
@@ -681,12 +844,12 @@ static void radeon_dynpm_idle_work_handler(struct work_struct *work)
radeon_pm_get_dynpm_state(rdev);
radeon_pm_set_clocks(rdev);
}
+
+ queue_delayed_work(rdev->wq, &rdev->pm.dynpm_idle_work,
+ msecs_to_jiffies(RADEON_IDLE_LOOP_MS));
}
mutex_unlock(&rdev->pm.mutex);
ttm_bo_unlock_delayed_workqueue(&rdev->mman.bdev, resched);
-
- queue_delayed_work(rdev->wq, &rdev->pm.dynpm_idle_work,
- msecs_to_jiffies(RADEON_IDLE_LOOP_MS));
}
/*
@@ -705,6 +868,8 @@ static int radeon_debugfs_pm_info(struct seq_file *m, void *data)
seq_printf(m, "default memory clock: %u0 kHz\n", rdev->clock.default_mclk);
if (rdev->asic->get_memory_clock)
seq_printf(m, "current memory clock: %u0 kHz\n", radeon_get_memory_clock(rdev));
+ if (rdev->pm.current_vddc)
+ seq_printf(m, "voltage: %u mV\n", rdev->pm.current_vddc);
if (rdev->asic->get_pcie_lanes)
seq_printf(m, "PCIE lanes: %d\n", radeon_get_pcie_lanes(rdev));
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