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drm/vc4: Use dma_resv locking wrappers

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I'll add more fancy logic to them soon, so everyone really has to use
them. Plus they already provide some nice additional debug
infrastructure on top of direct ww_mutex usage for the fences tracked
by dma_resv.

Reviewed-by: Eric Anholt <eric@anholt.net>
Cc: Eric Anholt <eric@anholt.net>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191125094356.161941-5-daniel.vetter@ffwll.ch
This commit is contained in:
Daniel Vetter 2019-11-25 10:43:56 +01:00
parent 80f30930b6
commit 616b549b15
1 changed files with 5 additions and 6 deletions
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11
drivers/gpu/drm/vc4/vc4_gem.c
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@ -568,7 +568,7 @@ vc4_unlock_bo_reservations(struct drm_device *dev,
for (i = 0; i < exec->bo_count; i++) {
struct drm_gem_object *bo = &exec->bo[i]->base;
ww_mutex_unlock(&bo->resv->lock);
dma_resv_unlock(bo->resv);
}
ww_acquire_fini(acquire_ctx);
@ -595,8 +595,7 @@ vc4_lock_bo_reservations(struct drm_device *dev,
retry:
if (contended_lock != -1) {
bo = &exec->bo[contended_lock]->base;
ret = ww_mutex_lock_slow_interruptible(&bo->resv->lock,
acquire_ctx);
ret = dma_resv_lock_slow_interruptible(bo->resv, acquire_ctx);
if (ret) {
ww_acquire_done(acquire_ctx);
return ret;
@ -609,19 +608,19 @@ retry:
bo = &exec->bo[i]->base;
ret = ww_mutex_lock_interruptible(&bo->resv->lock, acquire_ctx);
ret = dma_resv_lock_interruptible(bo->resv, acquire_ctx);
if (ret) {
int j;
for (j = 0; j < i; j++) {
bo = &exec->bo[j]->base;
ww_mutex_unlock(&bo->resv->lock);
dma_resv_unlock(bo->resv);
}
if (contended_lock != -1 && contended_lock >= i) {
bo = &exec->bo[contended_lock]->base;
ww_mutex_unlock(&bo->resv->lock);
dma_resv_unlock(bo->resv);
}
if (ret == -EDEADLK) {