diff options
| -rw-r--r-- | drivers/gpu/drm/msm/msm_gem.c | 22 |
1 files changed, 10 insertions, 12 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index 6cd4af443139..0a9b5580b2e9 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -584,18 +584,16 @@ int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, ktime_t *timeout) { struct msm_gem_object *msm_obj = to_msm_bo(obj); bool write = !!(op & MSM_PREP_WRITE); - - if (op & MSM_PREP_NOSYNC) { - if (!reservation_object_test_signaled_rcu(msm_obj->resv, write)) - return -EBUSY; - } else { - int ret; - - ret = reservation_object_wait_timeout_rcu(msm_obj->resv, write, - true, timeout_to_jiffies(timeout)); - if (ret <= 0) - return ret == 0 ? -ETIMEDOUT : ret; - } + unsigned long remain = + op & MSM_PREP_NOSYNC ? 0 : timeout_to_jiffies(timeout); + long ret; + + ret = reservation_object_wait_timeout_rcu(msm_obj->resv, write, + true, remain); + if (ret == 0) + return remain == 0 ? -EBUSY : -ETIMEDOUT; + else if (ret < 0) + return ret; /* TODO cache maintenance */ |