diff options
| author | jhb <jhb@FreeBSD.org> | 2000-10-20 06:45:48 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2000-10-20 06:45:48 +0000 |
| commit | 16168b364a2ba06b962dc30e7a667864b5900d63 (patch) | |
| tree | 0930f871956c8a415441aee1aa9d4c7c253ae468 /sys/i386/include/bus_dma.h | |
| parent | 9ee7a66d3e2e71817788cf4b6bd57e8ca6f6d511 (diff) | |
| download | FreeBSD-src-16168b364a2ba06b962dc30e7a667864b5900d63.zip FreeBSD-src-16168b364a2ba06b962dc30e7a667864b5900d63.tar.gz | |
Axe the barrier_{read,write,rw}() helper functions as this method of
doing memory barriers doesn't really scale well for the ia64. Also,
memory barriers are more a property of the CPU than bus space.
Requested by: dfr
Diffstat (limited to 'sys/i386/include/bus_dma.h')
| -rw-r--r-- | sys/i386/include/bus_dma.h | 24 |
1 files changed, 0 insertions, 24 deletions
diff --git a/sys/i386/include/bus_dma.h b/sys/i386/include/bus_dma.h index 3423e6b..9f036b6 100644 --- a/sys/i386/include/bus_dma.h +++ b/sys/i386/include/bus_dma.h @@ -1152,30 +1152,6 @@ bus_space_barrier(bus_space_tag_t tag, bus_space_handle_t bsh, __asm __volatile("" : : : "memory"); } - -/* - * Generic memory barrier functions. - */ -static __inline void -barrier_read(void) -{ - bus_space_barrier(I386_BUS_SPACE_MEM, 0, 0, ~0, BUS_SPACE_BARRIER_READ); -} - -static __inline void -barrier_write(void) -{ - bus_space_barrier(I386_BUS_SPACE_MEM, 0, 0, ~0, - BUS_SPACE_BARRIER_WRITE); -} - -static __inline void -barrier_rw(void) -{ - bus_space_barrier(I386_BUS_SPACE_MEM, 0, 0, ~0, - BUS_SPACE_BARRIER_READ | BUS_SPACE_BARRIER_WRITE); -} - /* * Flags used in various bus DMA methods. */ |
