AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2025-02-08 09:45:13 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

radeon: Take drm struct_mutex over reclocking

Browse Source 
We need to block the drm core from doing anything that may touch our vram
during reclock, so take the drm mutex for the duration.

Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Matthew Garrett 2010-04-26 15:57:01 -04:00 committed by Dave Airlie
parent 5876dd249e
commit 8f5b5e632c
1 changed files with 10 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
drivers/gpu/drm/radeon/radeon_pm.c
View File

@ -131,6 +131,7 @@ static ssize_t radeon_set_power_state_static(struct device *dev,
return count;
}
mutex_lock(&rdev->ddev->struct_mutex);
mutex_lock(&rdev->pm.mutex);
if ((ps >= 0) && (ps < rdev->pm.num_power_states) &&
(cm >= 0) && (cm < rdev->pm.power_state[ps].num_clock_modes)) {
@ -148,6 +149,7 @@ static ssize_t radeon_set_power_state_static(struct device *dev,
} else
DRM_ERROR("Invalid power state: %d.%d\n\n", ps, cm);
mutex_unlock(&rdev->pm.mutex);
mutex_unlock(&rdev->ddev->struct_mutex);
return count;
}
@ -184,11 +186,13 @@ static ssize_t radeon_set_dynpm(struct device *dev,
} else if (tmp == 1) {
if (rdev->pm.num_power_states > 1) {
/* enable dynpm */
mutex_lock(&rdev->ddev->struct_mutex);
mutex_lock(&rdev->pm.mutex);
rdev->pm.state = PM_STATE_PAUSED;
rdev->pm.planned_action = PM_ACTION_DEFAULT;
radeon_get_power_state(rdev, rdev->pm.planned_action);
mutex_unlock(&rdev->pm.mutex);
mutex_unlock(&rdev->ddev->struct_mutex);
/* update power mode info */
radeon_pm_compute_clocks(rdev);
DRM_INFO("radeon: dynamic power management enabled\n");
@ -311,9 +315,11 @@ void radeon_pm_fini(struct radeon_device *rdev)
(rdev->pm.current_clock_mode_index != 0)) {
rdev->pm.requested_power_state_index = rdev->pm.default_power_state_index;
rdev->pm.requested_clock_mode_index = 0;
mutex_lock(&rdev->ddev->struct_mutex);
mutex_lock(&rdev->pm.mutex);
radeon_pm_set_clocks(rdev, true);
mutex_unlock(&rdev->pm.mutex);
mutex_unlock(&rdev->ddev->struct_mutex);
}
device_remove_file(rdev->dev, &dev_attr_power_state);
@ -332,6 +338,7 @@ void radeon_pm_compute_clocks(struct radeon_device *rdev)
if (rdev->pm.state == PM_STATE_DISABLED)
return;
mutex_lock(&rdev->ddev->struct_mutex);
mutex_lock(&rdev->pm.mutex);
rdev->pm.active_crtcs = 0;
@ -382,6 +389,7 @@ void radeon_pm_compute_clocks(struct radeon_device *rdev)
}
mutex_unlock(&rdev->pm.mutex);
mutex_unlock(&rdev->ddev->struct_mutex);
}
bool radeon_pm_debug_check_in_vbl(struct radeon_device *rdev, bool finish)
@ -455,6 +463,7 @@ static void radeon_pm_idle_work_handler(struct work_struct *work)
rdev = container_of(work, struct radeon_device,
pm.idle_work.work);
mutex_lock(&rdev->ddev->struct_mutex);
mutex_lock(&rdev->pm.mutex);
if (rdev->pm.state == PM_STATE_ACTIVE) {
unsigned long irq_flags;
@ -499,6 +508,7 @@ static void radeon_pm_idle_work_handler(struct work_struct *work)
}
}
mutex_unlock(&rdev->pm.mutex);
mutex_unlock(&rdev->ddev->struct_mutex);
queue_delayed_work(rdev->wq, &rdev->pm.idle_work,
msecs_to_jiffies(RADEON_IDLE_LOOP_MS));