diff options
| author | Eric Anholt <eric@anholt.net> | 2017-07-25 11:27:18 -0700 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2017-07-28 16:05:08 -0700 |
| commit | 4e6b1e91253ebf701b4ec3586cba5596527a4d0a (patch) | |
| tree | b2c953d7fb761d742f266e20b38434b059776135 /drivers/gpu/drm/vc4 | |
| parent | f30994622b2bf8e4fa224237ac65304b27a9cb6a (diff) | |
| download | linux-4e6b1e91253ebf701b4ec3586cba5596527a4d0a.tar.bz2 | |
drm/vc4: Convert more lock requirement comments to lockdep assertions.
Since I do my development with lockdep on, this will help make sure I
don't introduce bugs here.
Signed-off-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20170725182718.31468-3-eric@anholt.net
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/vc4')
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_bo.c | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_bo.c b/drivers/gpu/drm/vc4/vc4_bo.c index f4387e1e178d..b24dd8685590 100644 --- a/drivers/gpu/drm/vc4/vc4_bo.c +++ b/drivers/gpu/drm/vc4/vc4_bo.c @@ -163,10 +163,12 @@ static uint32_t bo_page_index(size_t size) return (size / PAGE_SIZE) - 1; } -/* Must be called with bo_lock held. */ static void vc4_bo_destroy(struct vc4_bo *bo) { struct drm_gem_object *obj = &bo->base.base; + struct vc4_dev *vc4 = to_vc4_dev(obj->dev); + + lockdep_assert_held(&vc4->bo_lock); vc4_bo_set_label(obj, -1); @@ -181,9 +183,11 @@ static void vc4_bo_destroy(struct vc4_bo *bo) drm_gem_cma_free_object(obj); } -/* Must be called with bo_lock held. */ static void vc4_bo_remove_from_cache(struct vc4_bo *bo) { + struct vc4_dev *vc4 = to_vc4_dev(bo->base.base.dev); + + lockdep_assert_held(&vc4->bo_lock); list_del(&bo->unref_head); list_del(&bo->size_head); } @@ -367,12 +371,13 @@ int vc4_dumb_create(struct drm_file *file_priv, return ret; } -/* Must be called with bo_lock held. */ static void vc4_bo_cache_free_old(struct drm_device *dev) { struct vc4_dev *vc4 = to_vc4_dev(dev); unsigned long expire_time = jiffies - msecs_to_jiffies(1000); + lockdep_assert_held(&vc4->bo_lock); + while (!list_empty(&vc4->bo_cache.time_list)) { struct vc4_bo *bo = list_last_entry(&vc4->bo_cache.time_list, struct vc4_bo, unref_head); |