diff options
Diffstat (limited to 'sys/arch/i386')
| -rw-r--r-- | sys/arch/i386/i386/bios.c | 29 |
1 files changed, 13 insertions, 16 deletions
diff --git a/sys/arch/i386/i386/bios.c b/sys/arch/i386/i386/bios.c index 1c94a6f50b2..9023a0a4d29 100644 --- a/sys/arch/i386/i386/bios.c +++ b/sys/arch/i386/i386/bios.c @@ -1,4 +1,4 @@ -/* $OpenBSD: bios.c,v 1.82 2008/08/16 00:26:26 krw Exp $ */ +/* $OpenBSD: bios.c,v 1.83 2008/10/28 00:05:32 deraadt Exp $ */ /* * Copyright (c) 1997-2001 Michael Shalayeff @@ -156,10 +156,7 @@ biosattach(struct device *parent, struct device *self, void *aux) struct smbtable bios; volatile u_int8_t *va; char scratch[64], *str; - int flags, havesmbios = 0; -#if NAPM > 0 || defined(MULTIPROCESSOR) - int ncpu = 0; -#endif + int flags, smbiosrev = 0, ncpu = 0; /* remember flags */ flags = sc->sc_dev.dv_cfdata->cf_flags; @@ -275,9 +272,15 @@ biosattach(struct device *parent, struct device *self, void *aux) for (; pa < end; pa+= NBPG, eva+= NBPG) pmap_kenter_pa(eva, pa, VM_PROT_READ); - havesmbios = 1; printf(", SMBIOS rev. %d.%d @ 0x%lx (%d entries)", sh->majrev, sh->minrev, sh->addr, sh->count); + /* + * Unbelievably the SMBIOS version number + * sequence is like 2.3 ... 2.33 ... 2.4 ... 2.5 + */ + smbiosrev = sh->majrev * 100 + sh->minrev; + if (sh->minrev < 10) + smbiosrev = sh->majrev * 100 + sh->minrev * 10; bios.cookie = 0; if (smbios_find_table(SMBIOS_TYPE_BIOS, &bios)) { @@ -298,18 +301,14 @@ biosattach(struct device *parent, struct device *self, void *aux) } smbios_info(sc->sc_dev.dv_xname); -#ifdef MULTIPROCESSOR /* count cpus so that we can disable apm when cpu > 1 */ bzero(&bios, sizeof(bios)); while (smbios_find_table(SMBIOS_TYPE_PROCESSOR,&bios)) { struct smbios_cpu *cpu = bios.tblhdr; if (cpu->cpu_status & SMBIOS_CPUST_POPULATED) { - /* - * smbios 2.5 added multi code support - */ - if (sh->majrev * 100 + - sh->minrev >= 250 && + /* SMBIOS 2.5 added multicore support */ + if (smbiosrev >= 250 && cpu->cpu_core_enabled) ncpu += cpu->cpu_core_enabled; else { @@ -319,8 +318,6 @@ biosattach(struct device *parent, struct device *self, void *aux) } } } -#endif /* MULTIPROCESSOR */ - break; } } @@ -328,7 +325,7 @@ biosattach(struct device *parent, struct device *self, void *aux) printf("\n"); #if NAPM > 0 - if (apm && ncpu < 2) { + if (apm && ncpu < 2 && smbiosrev < 240) { struct bios_attach_args ba; #if defined(DEBUG) || defined(APMDEBUG) @@ -349,7 +346,7 @@ biosattach(struct device *parent, struct device *self, void *aux) #if NACPI > 0 #if NPCI > 0 - if (havesmbios && pci_mode_detect() != 0) + if (smbiosrev && pci_mode_detect() != 0) #endif { struct bios_attach_args ba; |