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-rw-r--r--include/drm/drm_modes.h22
1 files changed, 22 insertions, 0 deletions
diff --git a/include/drm/drm_modes.h b/include/drm/drm_modes.h
index 0d310beae6af..b159fe07fcf9 100644
--- a/include/drm/drm_modes.h
+++ b/include/drm/drm_modes.h
@@ -147,6 +147,12 @@ enum drm_mode_status {
#define DRM_MODE_FLAG_3D_MAX DRM_MODE_FLAG_3D_SIDE_BY_SIDE_HALF
+#define DRM_MODE_MATCH_TIMINGS (1 << 0)
+#define DRM_MODE_MATCH_CLOCK (1 << 1)
+#define DRM_MODE_MATCH_FLAGS (1 << 2)
+#define DRM_MODE_MATCH_3D_FLAGS (1 << 3)
+#define DRM_MODE_MATCH_ASPECT_RATIO (1 << 4)
+
/**
* struct drm_display_mode - DRM kernel-internal display mode structure
* @hdisplay: horizontal display size
@@ -405,6 +411,19 @@ struct drm_display_mode {
* Field for setting the HDMI picture aspect ratio of a mode.
*/
enum hdmi_picture_aspect picture_aspect_ratio;
+
+ /**
+ * @export_head:
+ *
+ * struct list_head for modes to be exposed to the userspace.
+ * This is to maintain a list of exposed modes while preparing
+ * user-mode's list in drm_mode_getconnector ioctl. The purpose of this
+ * list_head only lies in the ioctl function, and is not expected to be
+ * used outside the function.
+ * Once used, the stale pointers are not reset, but left as it is, to
+ * avoid overhead of protecting it by mode_config.mutex.
+ */
+ struct list_head export_head;
};
/**
@@ -490,6 +509,9 @@ void drm_mode_copy(struct drm_display_mode *dst,
const struct drm_display_mode *src);
struct drm_display_mode *drm_mode_duplicate(struct drm_device *dev,
const struct drm_display_mode *mode);
+bool drm_mode_match(const struct drm_display_mode *mode1,
+ const struct drm_display_mode *mode2,
+ unsigned int match_flags);
bool drm_mode_equal(const struct drm_display_mode *mode1,
const struct drm_display_mode *mode2);
bool drm_mode_equal_no_clocks(const struct drm_display_mode *mode1,