[Intel-gfx] [PATCH v6 14/64] drm/i915: Reject UNSYNCHRONIZED for userptr, v2.

[Maarten Lankhorst]

We should not allow this any more, as it will break with the new userptr
implementation, it could still be made to work, but there's no point in
doing so.

Inspection of the beignet opencl driver shows that it's only used
when normal userptr is not available, which means for new kernels
you will need CONFIG_I915_USERPTR.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst at linux.intel.com>
---
 drivers/gpu/drm/i915/gem/i915_gem_userptr.c | 10 ++--------
 1 file changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_userptr.c b/drivers/gpu/drm/i915/gem/i915_gem_userptr.c
index 64a946d5f753..241f865077b9 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_userptr.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_userptr.c
@@ -224,7 +224,7 @@ i915_gem_userptr_init__mmu_notifier(struct drm_i915_gem_object *obj,
 	struct i915_mmu_object *mo;
 
 	if (flags & I915_USERPTR_UNSYNCHRONIZED)
-		return capable(CAP_SYS_ADMIN) ? 0 : -EPERM;
+		return -ENODEV;
 
 	if (GEM_WARN_ON(!obj->userptr.mm))
 		return -EINVAL;
@@ -274,13 +274,7 @@ static int
 i915_gem_userptr_init__mmu_notifier(struct drm_i915_gem_object *obj,
 				    unsigned flags)
 {
-	if ((flags & I915_USERPTR_UNSYNCHRONIZED) == 0)
-		return -ENODEV;
-
-	if (!capable(CAP_SYS_ADMIN))
-		return -EPERM;
-
-	return 0;
+	return -ENODEV;
 }
 
 static void
-- 
2.30.0.rc1