On Tue, Sep 15, 2015 at 02:03:25PM +0530, ankitprasad.r.sharma@xxxxxxxxx wrote:
> i915_gem_create(struct drm_file *file,
> struct drm_device *dev,
> uint64_t size,
> + uint32_t flags,
> uint32_t *handle_p)
> {
> struct drm_i915_gem_object *obj;
> @@ -385,8 +386,31 @@ i915_gem_create(struct drm_file *file,
> if (size == 0)
> return -EINVAL;
>
> + if (flags & __I915_CREATE_UNKNOWN_FLAGS)
> + return -EINVAL;
> +
> /* Allocate the new object */
> - obj = i915_gem_alloc_object(dev, size);
> + if (flags & I915_CREATE_PLACEMENT_STOLEN) {
> + mutex_lock(&dev->struct_mutex);
> + obj = i915_gem_object_create_stolen(dev, size);
> + if (!obj) {
> + mutex_unlock(&dev->struct_mutex);
> + return -ENOMEM;
Note that you should change the i915_gem_object_create_stolen() to
report the precise error, as with the eviction support we may trigger
EINTR. Also ENOSPC will be preferrable for requesting a larger stolen
object than the available space (to help distinguish between true oom).
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
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