1 files changed, 77 insertions, 4 deletions
diff --git a/src/mesa/drivers/dri/radeon/radeon_lock.h b/src/mesa/drivers/dri/radeon/radeon_lock.h
index f2d17a54d47..f5ebb8dd54c 100644
--- a/src/mesa/drivers/dri/radeon/radeon_lock.h
+++ b/src/mesa/drivers/dri/radeon/radeon_lock.h
@@ -39,9 +39,82 @@ WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  *   Kevin E. Martin <[email protected]>
  */
 
-#ifndef __RADEON_LOCK_H__
-#define __RADEON_LOCK_H__
+#ifndef COMMON_LOCK_H
+#define COMMON_LOCK_H
 
-#include "common_lock.h"
+#include "main/colormac.h"
+#include "radeon_screen.h"
+#include "radeon_common.h"
 
-#endif				/* __RADEON_LOCK_H__ */
+extern void radeonGetLock(radeonContextPtr rmesa, GLuint flags);
+
+/* Turn DEBUG_LOCKING on to find locking conflicts.
+ */
+#define DEBUG_LOCKING	0
+
+#if DEBUG_LOCKING
+extern char *prevLockFile;
+extern int prevLockLine;
+
+#define DEBUG_LOCK()							\
+   do {									\
+      prevLockFile = (__FILE__);					\
+      prevLockLine = (__LINE__);					\
+   } while (0)
+
+#define DEBUG_RESET()							\
+   do {									\
+      prevLockFile = 0;							\
+      prevLockLine = 0;							\
+   } while (0)
+
+#define DEBUG_CHECK_LOCK()						\
+   do {									\
+      if ( prevLockFile ) {						\
+	 fprintf( stderr,						\
+		  "LOCK SET!\n\tPrevious %s:%d\n\tCurrent: %s:%d\n",	\
+		  prevLockFile, prevLockLine, __FILE__, __LINE__ );	\
+	 exit( 1 );							\
+      }									\
+   } while (0)
+
+#else
+
+#define DEBUG_LOCK()
+#define DEBUG_RESET()
+#define DEBUG_CHECK_LOCK()
+
+#endif
+
+/*
+ * !!! We may want to separate locks from locks with validation.  This
+ * could be used to improve performance for those things commands that
+ * do not do any drawing !!!
+ */
+
+/* Lock the hardware and validate our state.
+ */
+#define LOCK_HARDWARE( rmesa )					\
+   do {								\
+      char __ret = 0;						\
+      DEBUG_CHECK_LOCK();					\
+      if (!(rmesa)->radeonScreen->driScreen->dri2.enabled) {		\
+	DRM_CAS( (rmesa)->dri.hwLock, (rmesa)->dri.hwContext,		\
+		 (DRM_LOCK_HELD | (rmesa)->dri.hwContext), __ret );	\
+	if ( __ret )							\
+	  radeonGetLock( (rmesa), 0 );					\
+      }									\
+      DEBUG_LOCK();							\
+   } while (0)
+
+#define UNLOCK_HARDWARE( rmesa )					\
+   do {									\
+     if (!(rmesa)->radeonScreen->driScreen->dri2.enabled) {		\
+       DRM_UNLOCK( (rmesa)->dri.fd,					\
+		   (rmesa)->dri.hwLock,					\
+		   (rmesa)->dri.hwContext );				\
+       DEBUG_RESET();							\
+     }									\
+   } while (0)
+
+#endif