diff options
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem_userptr.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem_userptr.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem_userptr.c b/drivers/gpu/drm/i915/i915_gem_userptr.c index 6be40f3ba2c7..291a9393493d 100644 --- a/drivers/gpu/drm/i915/i915_gem_userptr.c +++ b/drivers/gpu/drm/i915/i915_gem_userptr.c @@ -758,6 +758,13 @@ i915_gem_userptr_ioctl(struct drm_device *dev, void *data, struct drm_file *file int ret; u32 handle; + if (!HAS_LLC(dev) && !HAS_SNOOP(dev)) { + /* We cannot support coherent userptr objects on hw without + * LLC and broken snooping. + */ + return -ENODEV; + } + if (args->flags & ~(I915_USERPTR_READ_ONLY | I915_USERPTR_UNSYNCHRONIZED)) return -EINVAL; |