diff options
| author | Maarten Lankhorst <maarten.lankhorst@linux.intel.com> | 2021-03-23 16:50:01 +0100 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2021-03-24 17:27:19 +0100 |
| commit | ae4e55b894dd0ce8c12bbd03d81889c27d95f17f (patch) | |
| tree | 148284ede8f6aed302e281043a1a643311f85c59 /drivers/gpu/drm/i915/gem/i915_gem_userptr.c | |
| parent | ae30af84edb5b7cc95485922e43afd909a892e1b (diff) | |
drm/i915: No longer allow exporting userptr through dma-buf
It doesn't make sense to export a memory address, we will prevent
allowing access this way to different address spaces when we
rework userptr handling, so best to explicitly disable it.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Acked-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20210323155059.628690-13-maarten.lankhorst@linux.intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/gem/i915_gem_userptr.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_userptr.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_userptr.c b/drivers/gpu/drm/i915/gem/i915_gem_userptr.c index 8c3d1eb2f96a..44af6265948d 100644 --- a/drivers/gpu/drm/i915/gem/i915_gem_userptr.c +++ b/drivers/gpu/drm/i915/gem/i915_gem_userptr.c @@ -694,10 +694,9 @@ i915_gem_userptr_release(struct drm_i915_gem_object *obj) static int i915_gem_userptr_dmabuf_export(struct drm_i915_gem_object *obj) { - if (obj->userptr.mmu_object) - return 0; + drm_dbg(obj->base.dev, "Exporting userptr no longer allowed\n"); - return i915_gem_userptr_init__mmu_notifier(obj, 0); + return -EINVAL; } static int |