diff options
| author | Matthew Garrett <mjg@redhat.com> | 2010-04-26 15:57:01 -0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-05-18 18:21:19 +1000 |
| commit | 8f5b5e632cd55d9acf10ba498b858fd996bd1a39 (patch) | |
| tree | 576ccaf0fad16bb5ff9032f17214ca60c1374a69 | |
| parent | 5876dd249e8e47c730cac090bf6edd88e5f04327 (diff) | |
radeon: Take drm struct_mutex over reclocking
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>
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_pm.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c index da35bd7f38dc..c9390ea56f96 100644 --- a/drivers/gpu/drm/radeon/radeon_pm.c +++ b/drivers/gpu/drm/radeon/radeon_pm.c @@ -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)); |