Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Add POOL_VTOPHYS. Change vtophys to return -1 if pmap_extract fails. 

(callers of vtophys should always supply a valid VA so that
pmap_extract should never fail).
This commit is contained in:
matt 2003-04-09 22:37:32 +00:00
parent c72503e1bd
commit dd1424e7ac
1 changed files with 8 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
sys/arch/powerpc/include/oea/pmap.h
View File

@ -1,4 +1,4 @@
/* $NetBSD: pmap.h,v 1.3 2003/03/15 07:19:20 matt Exp $ */
/* $NetBSD: pmap.h,v 1.4 2003/04/09 22:37:32 matt Exp $ */
/*-
* Copyright (C) 1995, 1996 Wolfgang Solfrank.
@ -50,6 +50,8 @@ struct pmap {
typedef struct pmap *pmap_t;
#ifdef _KERNEL
#include <sys/systm.h>
extern register_t iosrtable[];
extern int pmap_use_altivec;
extern struct pmap kernel_pmap_;
@ -89,6 +91,8 @@ int pmap_pte_spill(struct pmap *, vaddr_t);
#define PMAP_NC 0x1000
#define PMAP_STEAL_MEMORY
static __inline paddr_t vtophys (vaddr_t);
#if 1
/*
* Alternate mapping hooks for pool pages. Avoids thrashing the TLB.
@ -100,19 +104,18 @@ int pmap_pte_spill(struct pmap *, vaddr_t);
#define PMAP_MAP_POOLPAGE(pa) (pa)
#define PMAP_UNMAP_POOLPAGE(pa) (pa)
#endif
#define POOL_VTOPHYS(va) vtophys((vaddr_t) va)
static __inline paddr_t vtophys (vaddr_t);
static __inline paddr_t
vtophys(vaddr_t va)
{
paddr_t pa;
/* XXX should check battable */
if (pmap_extract(pmap_kernel(), va, &pa))
return pa;
return va;
KASSERT(0);
return (paddr_t) -1;
}
#endif /* _KERNEL */