[PATCH] Remove Unused Barrier macros on Alpha

[Matt Turner]

Hi,

As a follow up to ajax's bde028dd8d856f8d47c39e3c6d3731c34c398c74
commit, this patch fully removes the (now unused) instruction barrier
macro on Alpha.

It also removes some ifdef logic choosing whether we're using ELF or
ECOFF. I can't find any other references to ECOFF in the source, so I
assume it's just waiting to be removed.

Thanks,

Matt Turner

Signed-off-by: Matt Turner <mattst88 at gmail.com>
---
diff --git a/hw/xfree86/common/compiler.h b/hw/xfree86/common/compiler.h
index 0c6928c..7c28c2c 100644
--- a/hw/xfree86/common/compiler.h
+++ b/hw/xfree86/common/compiler.h
@@ -358,15 +358,8 @@ static __inline__ void stw_u(unsigned long r5,
unsigned short * r11)
 }

 /* to flush the I-cache before jumping to code which just got loaded */
-#    define PAL_imb 134
-#    define istream_mem_barrier() \
-	__asm__ __volatile__("call_pal %0 #imb" : : "i" (PAL_imb) : "memory")
 #    define mem_barrier()        __asm__ __volatile__("mb"  : : : "memory")
-#    ifdef __ELF__
-#     define write_mem_barrier()  __asm__ __volatile__("wmb" : : : "memory")
-#    else  /*  ECOFF gas 2.6 doesn't know "wmb" :-(  */
-#     define write_mem_barrier()  mem_barrier()
-#    endif
+#    define write_mem_barrier()  __asm__ __volatile__("wmb" : : : "memory")


 #   elif defined(linux) && defined(__ia64__)
---