diff options
| author | Miod Vallat <miod@cvs.openbsd.org> | 2007-11-24 11:12:56 +0000 |
|---|---|---|
| committer | Miod Vallat <miod@cvs.openbsd.org> | 2007-11-24 11:12:56 +0000 |
| commit | fc8f5d963cbfbce1bd21dcd873cad6b8ddb17815 (patch) | |
| tree | db56fbd51fd8283f2b71924725af03ede923d026 /sys/arch | |
| parent | dbc5591e59e94430789d9b4bf7ceb898757a8bcb (diff) | |
Slightly faster cache flushing operations on MP systems.
Diffstat (limited to 'sys/arch')
| -rw-r--r-- | sys/arch/m88k/m88k/m8820x_machdep.c | 18 |
1 files changed, 10 insertions, 8 deletions
diff --git a/sys/arch/m88k/m88k/m8820x_machdep.c b/sys/arch/m88k/m88k/m8820x_machdep.c index 76f0ebc44b0..87ceede118a 100644 --- a/sys/arch/m88k/m88k/m8820x_machdep.c +++ b/sys/arch/m88k/m88k/m8820x_machdep.c @@ -1,6 +1,6 @@ -/* $OpenBSD: m8820x_machdep.c,v 1.32 2007/11/22 05:47:46 miod Exp $ */ +/* $OpenBSD: m8820x_machdep.c,v 1.33 2007/11/24 11:12:55 miod Exp $ */ /* - * Copyright (c) 2004, Miodrag Vallat. + * Copyright (c) 2004, 2007, Miodrag Vallat. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions @@ -741,8 +741,7 @@ m8820x_dma_cachectl(pmap_t pmap, vaddr_t _va, vsize_t _size, int op) if (pmap_extract(pmap, va, &pa) != FALSE) { #ifdef MULTIPROCESSOR /* writeback on a single cpu... */ - if (flusher != m8820x_cmmu_inval_cache) - (*flusher)(ci->ci_cpuid, pa, count); + (*flusher)(ci->ci_cpuid, pa, count); /* invalidate on all... */ if (flusher != m8820x_cmmu_sync_cache) { @@ -750,7 +749,9 @@ m8820x_dma_cachectl(pmap_t pmap, vaddr_t _va, vsize_t _size, int op) if (!ISSET(m88k_cpus[cpu].ci_flags, CIF_ALIVE)) continue; - (*flusher)(cpu, pa, count); + if (cpu == ci->ci_cpuid) + continue; + m8820x_cmmu_inval_cache(cpu, pa, count); } } #else /* MULTIPROCESSOR */ @@ -809,8 +810,7 @@ m8820x_dma_cachectl_pa(paddr_t _pa, psize_t _size, int op) #ifdef MULTIPROCESSOR /* writeback on a single cpu... */ - if (flusher != m8820x_cmmu_inval_cache) - (*flusher)(ci->ci_cpuid, pa, count); + (*flusher)(ci->ci_cpuid, pa, count); /* invalidate on all... */ if (flusher != m8820x_cmmu_sync_cache) { @@ -818,7 +818,9 @@ m8820x_dma_cachectl_pa(paddr_t _pa, psize_t _size, int op) if (!ISSET(m88k_cpus[cpu].ci_flags, CIF_ALIVE)) continue; - (*flusher)(cpu, pa, count); + if (cpu == ci->ci_cpuid) + continue; + m8820x_cmmu_inval_cache(cpu, pa, count); } } #else /* MULTIPROCESSOR */ |