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Use better arm memory barrier

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Warner Losh 2013-01-11 00:03:19 +00:00
parent b174b65819
commit d5cd45a38d
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=245275
1 changed files with 2 additions and 1 deletions
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sys/dev/sym/sym_hipd.c
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@ -86,6 +86,7 @@ __FBSDID("$FreeBSD$");
#include <machine/bus.h>
#include <machine/resource.h>
#include <machine/atomic.h>
#ifdef __sparc64__
#include <dev/ofw/openfirm.h>
@ -136,7 +137,7 @@ typedef u_int32_t u32;
#elif defined __sparc64__
#define MEMORY_BARRIER() __asm__ volatile("membar #Sync" : : : "memory")
#elif defined __arm__
#define MEMORY_BARRIER() __do_dmb()
#define MEMORY_BARRIER() dmb()
#else
#error "Not supported platform"
#endif