| /* $XFree86: xc/lib/GL/mesa/src/drv/ffb/ffb_lock.h,v 1.2 2002/02/22 21:32:59 dawes Exp $ */ |
| |
| #ifndef _FFB_LOCK_H |
| #define _FFB_LOCK_H |
| |
| #include "ffb_context.h" |
| |
| extern void ffbXMesaUpdateState(ffbContextPtr fmesa); |
| #define FFB_UPDATE_STATE(fmesa) ffbXMesaUpdateState(fmesa) |
| |
| /* Lock the hardware and validate our state. This hardware can only ever |
| * exist on SPARC platforms. Don't bother building the real LOCK_HARDWARE and |
| * UNLOCK_HARDWARE code on non-SPARC platforms. The only reason the driver |
| * gets built on non-SPARC is to catch build breakages earlier. |
| */ |
| #if !defined(__sparc__) |
| #define LOCK_HARDWARE(fmesa) |
| #define UNLOCK_HARDWARE(fmesa) |
| #else |
| #define LOCK_HARDWARE(fmesa) \ |
| do { \ |
| DRM_CAS_RESULT(__ret); \ |
| DRM_CAS(fmesa->driHwLock, fmesa->hHWContext, \ |
| (DRM_LOCK_HELD | fmesa->hHWContext), __ret);\ |
| if (__ret) { \ |
| drmGetLock(fmesa->driFd, fmesa->hHWContext, 0); \ |
| FFB_UPDATE_STATE(fmesa); \ |
| } \ |
| } while (0) |
| |
| |
| /* Unlock the hardware. */ |
| #define UNLOCK_HARDWARE(fmesa) \ |
| DRM_UNLOCK(fmesa->driFd, fmesa->driHwLock, fmesa->hHWContext); |
| #endif |
| |
| #endif /* !(_FFB_LOCK_H) */ |
