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path: root/drivers/gpu/drm/nouveau/nouveau_gem.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_gem.c')
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_gem.c64
1 files changed, 4 insertions, 60 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c
index 454d5ceb28f..e14d10e3887 100644
--- a/drivers/gpu/drm/nouveau/nouveau_gem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_gem.c
@@ -48,9 +48,6 @@ nouveau_gem_object_del(struct drm_gem_object *gem)
return;
nvbo->gem = NULL;
- if (unlikely(nvbo->cpu_filp))
- ttm_bo_synccpu_write_release(bo);
-
if (unlikely(nvbo->pin_refcnt)) {
nvbo->pin_refcnt = 1;
nouveau_bo_unpin(nvbo);
@@ -334,23 +331,6 @@ retry:
validate_fini(op, NULL);
return -EINVAL;
}
-
- if (unlikely(atomic_read(&nvbo->bo.cpu_writers) > 0)) {
- validate_fini(op, NULL);
-
- if (nvbo->cpu_filp == file_priv) {
- NV_ERROR(dev, "bo %p mapped by process trying "
- "to validate it!\n", nvbo);
- return -EINVAL;
- }
-
- ret = ttm_bo_wait_cpu(&nvbo->bo, false);
- if (ret) {
- NV_ERROR(dev, "fail wait_cpu\n");
- return ret;
- }
- goto retry;
- }
}
return 0;
@@ -791,26 +771,9 @@ nouveau_gem_ioctl_cpu_prep(struct drm_device *dev, void *data,
return -ENOENT;
nvbo = nouveau_gem_object(gem);
- if (nvbo->cpu_filp) {
- if (nvbo->cpu_filp == file_priv)
- goto out;
-
- ret = ttm_bo_wait_cpu(&nvbo->bo, no_wait);
- if (ret)
- goto out;
- }
-
- if (req->flags & NOUVEAU_GEM_CPU_PREP_NOBLOCK) {
- spin_lock(&nvbo->bo.bdev->fence_lock);
- ret = ttm_bo_wait(&nvbo->bo, false, false, no_wait);
- spin_unlock(&nvbo->bo.bdev->fence_lock);
- } else {
- ret = ttm_bo_synccpu_write_grab(&nvbo->bo, no_wait);
- if (ret == 0)
- nvbo->cpu_filp = file_priv;
- }
-
-out:
+ spin_lock(&nvbo->bo.bdev->fence_lock);
+ ret = ttm_bo_wait(&nvbo->bo, true, true, no_wait);
+ spin_unlock(&nvbo->bo.bdev->fence_lock);
drm_gem_object_unreference_unlocked(gem);
return ret;
}
@@ -819,26 +782,7 @@ int
nouveau_gem_ioctl_cpu_fini(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
- struct drm_nouveau_gem_cpu_prep *req = data;
- struct drm_gem_object *gem;
- struct nouveau_bo *nvbo;
- int ret = -EINVAL;
-
- gem = drm_gem_object_lookup(dev, file_priv, req->handle);
- if (!gem)
- return -ENOENT;
- nvbo = nouveau_gem_object(gem);
-
- if (nvbo->cpu_filp != file_priv)
- goto out;
- nvbo->cpu_filp = NULL;
-
- ttm_bo_synccpu_write_release(&nvbo->bo);
- ret = 0;
-
-out:
- drm_gem_object_unreference_unlocked(gem);
- return ret;
+ return 0;
}
int