Fixes need to clean up the mess I made with the mesa merge. This code

    allows the mesa drivers to use a single definition of the DRM
    sarea/IOCTLS located in the drm driver directory. Adjustments were made
    to the 2D drivers to not include these changes. Changes to the mesa
    copy of DRM were copied to the DRI copy. XFree86 bug: Reported by:
    Submitted by: Reviewed by: Obtained from:

1 files changed, 12 insertions, 0 deletions

diff --git a/shared-core/drm.h b/shared-core/drm.h
index 6f575d52..ceba2424 100644
--- a/shared-core/drm.h
+++ b/shared-core/drm.h
@@ -135,6 +135,18 @@ typedef struct drm_tex_region {
 	unsigned int	age;
 } drm_tex_region_t;
 
+/**
+ * Hardware lock.
+ *
+ * The lock structure is a simple cache-line aligned integer.  To avoid
+ * processor bus contention on a multiprocessor system, there should not be any
+ * other data stored in the same cache line.
+ */
+typedef struct drm_hw_lock {
+	__volatile__ unsigned int lock;		/**< lock variable */
+	char			  padding[60];	/**< Pad to cache line */
+} drm_hw_lock_t;
+
 
 /**
  * DRM_IOCTL_VERSION ioctl argument type.