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[v2,15/20] drm/qxl: implement mmap access managament

Message ID 1373217456-32282-16-git-send-email-dh.herrmann@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

David Herrmann July 7, 2013, 5:17 p.m. UTC 
Correctly allow and revoke buffer access on each open/close via the new
VMA offset manager.

Cc: Dave Airlie <airlied@redhat.com>
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
---
 drivers/gpu/drm/qxl/qxl_gem.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/gpu/drm/qxl/qxl_gem.c b/drivers/gpu/drm/qxl/qxl_gem.c
index a235693..fb38a5e 100644
--- a/drivers/gpu/drm/qxl/qxl_gem.c
+++ b/drivers/gpu/drm/qxl/qxl_gem.c
@@ -129,12 +129,17 @@  void qxl_gem_object_unpin(struct drm_gem_object *obj)
 
 int qxl_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv)
 {
-	return 0;
+	struct qxl_bo *qobj = obj->driver_private;
+
+	return drm_vma_node_allow(&qobj->tbo.vma_node, file_priv->filp);
 }
 
 void qxl_gem_object_close(struct drm_gem_object *obj,
 			  struct drm_file *file_priv)
 {
+	struct qxl_bo *qobj = obj->driver_private;
+
+	drm_vma_node_revoke(&qobj->tbo.vma_node, file_priv->filp);
 }
 
 int qxl_gem_init(struct qxl_device *qdev)