diff options
Diffstat (limited to 'sys/arch/i386/include/pmap.h')
| -rw-r--r-- | sys/arch/i386/include/pmap.h | 27 |
1 files changed, 13 insertions, 14 deletions
diff --git a/sys/arch/i386/include/pmap.h b/sys/arch/i386/include/pmap.h index 74013d8824c..a7089d958fd 100644 --- a/sys/arch/i386/include/pmap.h +++ b/sys/arch/i386/include/pmap.h @@ -1,4 +1,4 @@ -/* $OpenBSD: pmap.h,v 1.34 2004/05/20 09:20:42 kettenis Exp $ */ +/* $OpenBSD: pmap.h,v 1.35 2004/06/13 21:49:16 niklas Exp $ */ /* $NetBSD: pmap.h,v 1.44 2000/04/24 17:18:18 thorpej Exp $ */ /* @@ -236,6 +236,12 @@ #define PG_PVLIST PG_AVAIL2 /* mapping has entry on pvlist */ #define PG_X PG_AVAIL3 /* executable mapping */ +/* + * Number of PTE's per cache line. 4 byte pte, 32-byte cache line + * Used to avoid false sharing of cache lines. + */ +#define NPTECL 8 + #ifdef _KERNEL /* * pmap data structures: see pmap.c for details of locking. @@ -272,6 +278,7 @@ struct pmap { union descriptor *pm_ldt; /* user-set LDT */ int pm_ldt_len; /* number of LDT entries */ int pm_ldt_sel; /* LDT selector */ + uint32_t pm_cpus; /* mask oc CPUs using map */ }; /* pm_flags */ @@ -330,19 +337,7 @@ struct pv_page { }; /* - * pmap_remove_record: a record of VAs that have been unmapped, used to - * flush TLB. If we have more than PMAP_RR_MAX then we stop recording. - */ - -#define PMAP_RR_MAX 16 /* max of 16 pages (64K) */ - -struct pmap_remove_record { - int prr_npages; - vaddr_t prr_vas[PMAP_RR_MAX]; -}; - -/* - * Global kernel variables + * global kernel variables */ extern pd_entry_t PTD[]; @@ -394,6 +389,10 @@ int pmap_exec_fixup(struct vm_map *, struct trapframe *, vaddr_t reserve_dumppages(vaddr_t); /* XXX: not a pmap fn */ +void pmap_tlb_shootdown(pmap_t, vaddr_t, pt_entry_t, int32_t *); +void pmap_tlb_shootnow(int32_t); +void pmap_do_tlb_shootdown(struct cpu_info *); + #define PMAP_GROWKERNEL /* turn on pmap_growkernel interface */ /* |