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[08/17] drm: Allow drm_mode_object_find() to look up an object of any type

Message ID 1400956226-28053-9-git-send-email-robdclark@gmail.com (mailing list archive)
State New, archived
Headers show

Commit Message

Rob Clark May 24, 2014, 6:30 p.m. UTC 
From: Ville Syrjälä <ville.syrjala@linux.intel.com>

To avoid having to pass object types from userspace for atomic mode
setting ioctl, allow drm_mode_object_find() to look up an object of any
type. This will only work as long as the all object types share the ID
space.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>
---
 drivers/gpu/drm/drm_crtc.c | 3 ++-
 include/drm/drm_crtc.h     | 1 +
 2 files changed, 3 insertions(+), 1 deletion(-)
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Patch

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index e01c286..511d33e 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -463,7 +463,8 @@  struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
 
 	mutex_lock(&dev->mode_config.idr_mutex);
 	obj = idr_find(&dev->mode_config.crtc_idr, id);
-	if (!obj || (obj->type != type) || (obj->id != id))
+	if (!obj || (type != DRM_MODE_OBJECT_ANY && obj->type != type) ||
+	    (obj->id != id))
 		obj = NULL;
 	mutex_unlock(&dev->mode_config.idr_mutex);
 
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 9caf434..31ed7c6 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -52,6 +52,7 @@  struct drm_object_property_values;
 #define DRM_MODE_OBJECT_BLOB 0xbbbbbbbb
 #define DRM_MODE_OBJECT_PLANE 0xeeeeeeee
 #define DRM_MODE_OBJECT_BRIDGE 0xbdbdbdbd
+#define DRM_MODE_OBJECT_ANY 0
 
 struct drm_mode_object {
 	uint32_t id;