add the SiS driver - no kernel driver yet

(build tested, but not physically tested)

1 files changed, 87 insertions, 0 deletions

diff --git a/src/mesa/drivers/dri/sis/sis_lock.h b/src/mesa/drivers/dri/sis/sis_lock.h
new file mode 100644
index 0000000000..1c43d8cc34
--- /dev/null
+++ b/src/mesa/drivers/dri/sis/sis_lock.h
@@ -0,0 +1,87 @@
+/**************************************************************************
+
+Copyright 2000 Silicon Integrated Systems Corp, Inc., HsinChu, Taiwan.
+Copyright 2003 Eric Anholt
+All Rights Reserved.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the "Software"),
+to deal in the Software without restriction, including without limitation
+on the rights to use, copy, modify, merge, publish, distribute, sub
+license, and/or sell copies of the Software, and to permit persons to whom
+the Software is furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice (including the next
+paragraph) shall be included in all copies or substantial portions of the
+Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ATI, PRECISION INSIGHT AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
+DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+**************************************************************************/
+/* $XFree86$ */
+
+/*
+ * Authors:
+ *   Sung-Ching Lin <sclin@sis.com.tw>
+ *   Eric Anholt <anholt@FreeBSD.org>
+ */
+
+#ifndef __SIS_LOCK_H
+#define __SIS_LOCK_H
+
+extern void sisGetLock( sisContextPtr smesa, GLuint flags );
+
+#ifdef DEBUG_LOCKING
+extern char *prevLockFile;
+extern int prevLockLine;
+#define DEBUG_LOCK() \
+  do { \
+    prevLockFile=(__FILE__); \
+    prevLockLine=(__LINE__); \
+  } while (0)
+#define DEBUG_RESET() \
+  do { \
+    prevLockFile=NULL; \
+    prevLockLine=0; \
+  } while (0)
+#define DEBUG_CHECK_LOCK() \
+  do { \
+      if(prevLockFile){ \
+        fprintf(stderr, "LOCK SET : %s:%d\n", __FILE__, __LINE__); \
+      } \
+  } while (0)
+#else
+#define DEBUG_LOCK()
+#define DEBUG_RESET()
+#define DEBUG_CHECK_LOCK()
+#endif
+
+/* Lock the hardware using the global current context */
+#define LOCK_HARDWARE()							\
+  do {									\
+    char __ret=0;							\
+    mEndPrimitive();							\
+    DEBUG_CHECK_LOCK();							\
+    DRM_CAS( smesa->driHwLock, smesa->hHWContext,			\
+	     (DRM_LOCK_HELD | smesa->hHWContext), __ret );		\
+    if ( __ret != 0 )							\
+        sisGetLock( smesa, 0 );             					\
+    DEBUG_LOCK();							\
+  } while (0)
+
+/* Unlock the hardware using the global current context */
+#define UNLOCK_HARDWARE()						\
+  do {									\
+    mEndPrimitive(); 							\
+    DRM_UNLOCK(smesa->driFd, smesa->driHwLock, 				\
+	       smesa->hHWContext);					\
+    DEBUG_RESET(); 							\
+  } while (0)
+
+#endif