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authorReinhard Tartler <siretart@tauware.de>2011-10-10 17:43:39 +0200
committerReinhard Tartler <siretart@tauware.de>2011-10-10 17:43:39 +0200
commitf4092abdf94af6a99aff944d6264bc1284e8bdd4 (patch)
tree2ac1c9cc16ceb93edb2c4382c088dac5aeafdf0f /nx-X11/extras/Mesa/src/mesa/drivers/dri/s3v/s3v_lock.h
parenta840692edc9c6d19cd7c057f68e39c7d95eb767d (diff)
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Imported nx-X11-3.1.0-1.tar.gznx-X11/3.1.0-1
Summary: Imported nx-X11-3.1.0-1.tar.gz Keywords: Imported nx-X11-3.1.0-1.tar.gz into Git repository
Diffstat (limited to 'nx-X11/extras/Mesa/src/mesa/drivers/dri/s3v/s3v_lock.h')
-rw-r--r--nx-X11/extras/Mesa/src/mesa/drivers/dri/s3v/s3v_lock.h99
1 files changed, 99 insertions, 0 deletions
diff --git a/nx-X11/extras/Mesa/src/mesa/drivers/dri/s3v/s3v_lock.h b/nx-X11/extras/Mesa/src/mesa/drivers/dri/s3v/s3v_lock.h
new file mode 100644
index 000000000..c39d24a38
--- /dev/null
+++ b/nx-X11/extras/Mesa/src/mesa/drivers/dri/s3v/s3v_lock.h
@@ -0,0 +1,99 @@
+/*
+ * Author: Max Lingua <sunmax@libero.it>
+ */
+
+#ifndef __S3V_LOCK_H__
+#define __S3V_LOCK_H__
+
+#include <sys/ioctl.h>
+
+extern void s3vGetLock( s3vContextPtr vmesa, 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( vmesa ) \
+ do { \
+ char __ret = 0; \
+ DEBUG_CHECK_LOCK(); \
+ DRM_CAS( vmesa->driHwLock, vmesa->hHWContext, \
+ (DRM_LOCK_HELD | vmesa->hHWContext), __ret ); \
+ if ( __ret ) \
+ s3vGetLock( vmesa, 0 ); \
+ DEBUG_LOCK(); \
+ } while (0)
+
+/* Unlock the hardware.
+ */
+#define UNLOCK_HARDWARE( vmesa ) \
+ do { \
+ DRM_UNLOCK( vmesa->driFd, \
+ vmesa->driHwLock, \
+ vmesa->hHWContext ); \
+ DEBUG_RESET(); \
+ } while (0)
+
+#define S3VHW_LOCK( vmesa ) \
+ DRM_UNLOCK(vmesa->driFd, vmesa->driHwLock, vmesa->hHWContext); \
+ DRM_SPINLOCK(&vmesa->driScreen->pSAREA->drawable_lock, \
+ vmesa->driScreen->drawLockID); \
+ /* VALIDATE_DRAWABLE_INFO_NO_LOCK(vmesa); */
+
+#define S3VHW_UNLOCK( vmesa ) \
+ DRM_SPINUNLOCK(&vmesa->driScreen->pSAREA->drawable_lock, \
+ vmesa->driScreen->drawLockID); \
+ /* VALIDATE_DRAWABLE_INFO_NO_LOCK_POST(vmesa); */
+
+#define S3V_SIMPLE_LOCK( vmesa ) \
+ ioctl(vmesa->driFd, 0x4a)
+
+#define S3V_SIMPLE_FLUSH_LOCK( vmesa ) \
+ ioctl(vmesa->driFd, 0x4b)
+
+#define S3V_SIMPLE_UNLOCK( vmesa ) \
+ ioctl(vmesa->driFd, 0x4c)
+
+#endif /* __S3V_LOCK_H__ */