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| author | kib <kib@FreeBSD.org> | 2013-04-09 17:55:39 +0000 |
|---|---|---|
| committer | kib <kib@FreeBSD.org> | 2013-04-09 17:55:39 +0000 |
| commit | 4eacc6be7b9d078e160e4c2fb1f13d33849eba65 (patch) | |
| tree | 867947327ff89839505091df5519e2c5abb22f5f /sys/i386/include/counter.h | |
| parent | 204e3efd776da6c7944c99514ef256e1f350be8e (diff) | |
| download | FreeBSD-src-4eacc6be7b9d078e160e4c2fb1f13d33849eba65.zip FreeBSD-src-4eacc6be7b9d078e160e4c2fb1f13d33849eba65.tar.gz | |
Pass the segmented address of the counter, based on %fs, i.e. offset
from the pcpu[0] to the counter base, instead of the linear address.
Diffstat (limited to 'sys/i386/include/counter.h')
| -rw-r--r-- | sys/i386/include/counter.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/i386/include/counter.h b/sys/i386/include/counter.h index f45d953..3e93b36 100644 --- a/sys/i386/include/counter.h +++ b/sys/i386/include/counter.h @@ -46,6 +46,8 @@ critical_exit(); \ } while (0) +extern struct pcpu __pcpu[MAXCPU]; + static inline void counter_64_inc_8b(uint64_t *p, int64_t inc) { @@ -61,7 +63,7 @@ counter_64_inc_8b(uint64_t *p, int64_t inc) "cmpxchg8b %%fs:(%%esi)\n\t" "jnz 1b" : - : "S" (p), "D" (&inc) + : "S" ((char *)p - (char *)&__pcpu[0]), "D" (&inc) : "memory", "cc", "eax", "edx", "ebx", "ecx"); } |
