diff options
Diffstat (limited to 'drivers/gpu/drm/msm/msm_gem.c')
-rw-r--r-- | drivers/gpu/drm/msm/msm_gem.c | 34 |
1 files changed, 24 insertions, 10 deletions
diff --git a/drivers/gpu/drm/msm/msm_gem.c b/drivers/gpu/drm/msm/msm_gem.c index 6b5a6c8..29eacfa 100644 --- a/drivers/gpu/drm/msm/msm_gem.c +++ b/drivers/gpu/drm/msm/msm_gem.c @@ -40,9 +40,9 @@ static struct page **get_pages(struct drm_gem_object *obj) } msm_obj->sgt = drm_prime_pages_to_sg(p, npages); - if (!msm_obj->sgt) { + if (IS_ERR(msm_obj->sgt)) { dev_err(dev->dev, "failed to allocate sgt\n"); - return ERR_PTR(-ENOMEM); + return ERR_CAST(msm_obj->sgt); } msm_obj->pages = p; @@ -159,7 +159,6 @@ out_unlock: out: switch (ret) { case -EAGAIN: - set_need_resched(); case 0: case -ERESTARTSYS: case -EINTR: @@ -393,11 +392,14 @@ int msm_gem_queue_inactive_work(struct drm_gem_object *obj, } void msm_gem_move_to_active(struct drm_gem_object *obj, - struct msm_gpu *gpu, uint32_t fence) + struct msm_gpu *gpu, bool write, uint32_t fence) { struct msm_gem_object *msm_obj = to_msm_bo(obj); msm_obj->gpu = gpu; - msm_obj->fence = fence; + if (write) + msm_obj->write_fence = fence; + else + msm_obj->read_fence = fence; list_del_init(&msm_obj->mm_list); list_add_tail(&msm_obj->mm_list, &gpu->active_list); } @@ -411,7 +413,8 @@ void msm_gem_move_to_inactive(struct drm_gem_object *obj) WARN_ON(!mutex_is_locked(&dev->struct_mutex)); msm_obj->gpu = NULL; - msm_obj->fence = 0; + msm_obj->read_fence = 0; + msm_obj->write_fence = 0; list_del_init(&msm_obj->mm_list); list_add_tail(&msm_obj->mm_list, &priv->inactive_list); @@ -433,8 +436,18 @@ int msm_gem_cpu_prep(struct drm_gem_object *obj, uint32_t op, struct msm_gem_object *msm_obj = to_msm_bo(obj); int ret = 0; - if (is_active(msm_obj) && !(op & MSM_PREP_NOSYNC)) - ret = msm_wait_fence_interruptable(dev, msm_obj->fence, timeout); + if (is_active(msm_obj)) { + uint32_t fence = 0; + + if (op & MSM_PREP_READ) + fence = msm_obj->write_fence; + if (op & MSM_PREP_WRITE) + fence = max(fence, msm_obj->read_fence); + if (op & MSM_PREP_NOSYNC) + timeout = NULL; + + ret = msm_wait_fence_interruptable(dev, fence, timeout); + } /* TODO cache maintenance */ @@ -455,9 +468,10 @@ void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m) uint64_t off = drm_vma_node_start(&obj->vma_node); WARN_ON(!mutex_is_locked(&dev->struct_mutex)); - seq_printf(m, "%08x: %c(%d) %2d (%2d) %08llx %p %d\n", + seq_printf(m, "%08x: %c(r=%u,w=%u) %2d (%2d) %08llx %p %d\n", msm_obj->flags, is_active(msm_obj) ? 'A' : 'I', - msm_obj->fence, obj->name, obj->refcount.refcount.counter, + msm_obj->read_fence, msm_obj->write_fence, + obj->name, obj->refcount.refcount.counter, off, msm_obj->vaddr, obj->size); } |