Date: Wed, 17 May 2006 00:15:05 GMT From: Kip Macy <kmacy@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 97312 for review Message-ID: <200605170015.k4H0F5Ps011045@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=97312 Change 97312 by kmacy@kmacy_storage:sun4v_rwbuf on 2006/05/17 00:14:24 remove unused lock functions Affected files ... .. //depot/projects/kmacy_sun4v/src/sys/sun4v/sun4v/tte_hash.c#28 edit Differences ... ==== //depot/projects/kmacy_sun4v/src/sys/sun4v/sun4v/tte_hash.c#28 (text+ko) ==== @@ -122,6 +122,10 @@ static struct vm_object thzone_obj; static int tte_hash_count = 0, tte_hash_max = 0; +extern uint64_t hash_bucket_lock(tte_hash_field_t fields); + +extern void hash_bucket_unlock(tte_hash_field_t fields, uint64_t s); + static tte_hash_t get_tte_hash(void) { @@ -142,44 +146,7 @@ uma_zfree(thzone, th); } -#if 0 -static uint64_t -hash_bucket_lock(tte_hash_field_t fields) -{ - uint64_t data; - int s; - s = intr_disable(); - data = fields[0].tte.data & ~VTD_LOCK; - while (atomic_cmpset_long(&fields[0].tte.data, data, data | VTD_LOCK)) - data = fields[0].tte.data & ~VTD_LOCK; - - membar(Sync); - return (uint64_t)s; - -} - -static void -hash_bucket_unlock(tte_hash_field_t fields, uint64_t s) -{ - - membar(StoreStore|LoadStore); -#ifdef DEBUG - if ((fields[0].tte.data & VTD_LOCK) == 0) - panic("trying to unlock bucket that isn't locked"); -#endif - - fields[0].tte.data &= ~VTD_LOCK; - membar(Sync); - intr_restore(s); -} - -#else -extern uint64_t hash_bucket_lock(tte_hash_field_t fields); - -extern void hash_bucket_unlock(tte_hash_field_t fields, uint64_t s); - -#endif void tte_hash_init(void) {
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