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[07/16] drm/i915: Differentiate between prime and stolen objects

Message ID 1352979151-9934-8-git-send-email-chris@chris-wilson.co.uk (mailing list archive)
State New, archived
Headers show

Commit Message

Chris Wilson Nov. 15, 2012, 11:32 a.m. UTC 
Stolen objects also share the property that they have no backing shmemfs
filp, but they can be used with pwrite/pread/gtt-mapping.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
---
 drivers/gpu/drm/i915/i915_drv.h |    5 +++++
 drivers/gpu/drm/i915/i915_gem.c |    4 ++--
 2 files changed, 7 insertions(+), 2 deletions(-)
diff mbox

Patch

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 9705380..b29ee03 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1098,6 +1098,11 @@  struct drm_i915_gem_object {
 	atomic_t pending_flip;
 };
 
+inline static bool i915_gem_object_is_prime(struct drm_i915_gem_object *obj)
+{
+	return obj->base.import_attach != NULL;
+}
+
 #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base)
 
 /**
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index cdcf19d..a6a2893 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -552,7 +552,7 @@  i915_gem_pread_ioctl(struct drm_device *dev, void *data,
 	/* prime objects have no backing filp to GEM pread/pwrite
 	 * pages from.
 	 */
-	if (!obj->base.filp) {
+	if (i915_gem_object_is_prime(obj)) {
 		ret = -EINVAL;
 		goto out;
 	}
@@ -901,7 +901,7 @@  i915_gem_pwrite_ioctl(struct drm_device *dev, void *data,
 	/* prime objects have no backing filp to GEM pread/pwrite
 	 * pages from.
 	 */
-	if (!obj->base.filp) {
+	if (i915_gem_object_is_prime(obj)) {
 		ret = -EINVAL;
 		goto out;
 	}