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authorMatthew Garrett <mjg@redhat.com>2010-04-26 16:00:09 -0400
committerDave Airlie <airlied@redhat.com>2010-05-18 18:21:20 +1000
commit7c5ee5366f79f53de2a11e73953daee6d58df124 (patch)
treeb687002e761917b91e17fed3f327015939b115c8 /drivers/gpu/drm/ttm
parent8f5b5e632cd55d9acf10ba498b858fd996bd1a39 (diff)
ttm: Provide an API for starting and stopping the delayed workqueue
We want to be able to prevent the delayed workqueue from changing state while we're reclocking, so add an API to block and unblock it. Signed-off-by: Matthew Garrett <mjg@redhat.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/ttm')
-rw-r--r--drivers/gpu/drm/ttm/ttm_bo.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 3b5b094b1397..4c2299299ab2 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -604,6 +604,20 @@ void ttm_bo_unref(struct ttm_buffer_object **p_bo)
}
EXPORT_SYMBOL(ttm_bo_unref);
+int ttm_bo_lock_delayed_workqueue(struct ttm_bo_device *bdev)
+{
+ return cancel_delayed_work_sync(&bdev->wq);
+}
+EXPORT_SYMBOL(ttm_bo_lock_delayed_workqueue);
+
+void ttm_bo_unlock_delayed_workqueue(struct ttm_bo_device *bdev, int resched)
+{
+ if (resched)
+ schedule_delayed_work(&bdev->wq,
+ ((HZ / 100) < 1) ? 1 : HZ / 100);
+}
+EXPORT_SYMBOL(ttm_bo_unlock_delayed_workqueue);
+
static int ttm_bo_evict(struct ttm_buffer_object *bo, bool interruptible,
bool no_wait_reserve, bool no_wait_gpu)
{