Remove unused code: getptesw4m(),setptesw4m()
This commit is contained in:
pk
parent
716a862d08
commit
d46e0d77c0
@ -1,4 +1,4 @@
|
||||
/* $NetBSD: pmap.c,v 1.160 2000/05/01 15:19:46 pk Exp $ */
|
||||
/* $NetBSD: pmap.c,v 1.161 2000/05/02 10:35:06 pk Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1996
|
||||
@ -420,8 +420,6 @@ static u_long segfixmask = 0xffffffff; /* all bits valid to start */
|
||||
#if defined(SUN4M)
|
||||
void setpgt4m __P((int *ptep, int pte));
|
||||
void setpte4m __P((vaddr_t va, int pte));
|
||||
void setptesw4m __P((struct pmap *pm, vaddr_t va, int pte));
|
||||
static u_int getptesw4m __P((struct pmap *pm, vaddr_t va));
|
||||
#endif
|
||||
|
||||
/* Function pointer messiness for supporting multiple sparc architectures
|
||||
@ -576,39 +574,6 @@ VA2PA(addr)
|
||||
#endif
|
||||
}
|
||||
|
||||
/*
|
||||
* Get the page table entry (PTE) for va by looking it up in the software
|
||||
* page tables. These are the same tables that are used by the MMU; this
|
||||
* routine allows easy access to the page tables even if the context
|
||||
* corresponding to the table is not loaded or selected.
|
||||
* This routine should NOT be used if there is any chance that the desired
|
||||
* pte is in the TLB cache, since it will return stale data in that case.
|
||||
* For that case, and for general use, use getpte4m, which is much faster
|
||||
* and avoids walking in-memory page tables if the page is in the cache.
|
||||
* Note also that this routine only works if a kernel mapping has been
|
||||
* installed for the given page!
|
||||
*/
|
||||
__inline u_int
|
||||
getptesw4m(pm, va) /* Assumes L3 mapping! */
|
||||
struct pmap *pm;
|
||||
vaddr_t va;
|
||||
{
|
||||
struct regmap *rm;
|
||||
struct segmap *sm;
|
||||
|
||||
rm = &pm->pm_regmap[VA_VREG(va)];
|
||||
#ifdef DEBUG
|
||||
if (rm == NULL)
|
||||
panic("getptesw4m: no regmap entry");
|
||||
#endif
|
||||
sm = &rm->rg_segmap[VA_VSEG(va)];
|
||||
#ifdef DEBUG
|
||||
if (sm == NULL)
|
||||
panic("getptesw4m: no segmap");
|
||||
#endif
|
||||
return (sm->sg_pte[VA_SUN4M_VPG(va)]); /* return pte */
|
||||
}
|
||||
|
||||
__inline void
|
||||
setpgt4m(ptep, pte)
|
||||
int *ptep;
|
||||
@ -622,37 +587,6 @@ setpgt4m(ptep, pte)
|
||||
#endif
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Set the page table entry for va to pte. Only affects software MMU page-
|
||||
* tables (the in-core pagetables read by the MMU). Ignores TLB, and
|
||||
* thus should _not_ be called if the pte translation could be in the TLB.
|
||||
* In this case, use setpte4m().
|
||||
*/
|
||||
__inline void
|
||||
setptesw4m(pm, va, pte)
|
||||
struct pmap *pm;
|
||||
vaddr_t va;
|
||||
int pte;
|
||||
{
|
||||
struct regmap *rm;
|
||||
struct segmap *sm;
|
||||
|
||||
rm = &pm->pm_regmap[VA_VREG(va)];
|
||||
|
||||
#ifdef DEBUG
|
||||
if (pm->pm_regmap == NULL || rm == NULL)
|
||||
panic("setptesw4m: no regmap entry");
|
||||
#endif
|
||||
sm = &rm->rg_segmap[VA_VSEG(va)];
|
||||
|
||||
#ifdef DEBUG
|
||||
if (rm->rg_segmap == NULL || sm == NULL || sm->sg_pte == NULL)
|
||||
panic("setptesw4m: no segmap for va %p", (caddr_t)va);
|
||||
#endif
|
||||
setpgt4m(sm->sg_pte + VA_SUN4M_VPG(va), pte);
|
||||
}
|
||||
|
||||
/* Set the page table entry for va to pte. */
|
||||
__inline void
|
||||
setpte4m(va, pte)
|
||||
@ -4164,7 +4098,9 @@ pmap_rmk4m(pm, va, endva, vr, vs)
|
||||
if ((nleft = sp->sg_npte) == 0)
|
||||
return;
|
||||
|
||||
#ifdef DEBUG
|
||||
#ifdef DIAGNOSTIC
|
||||
if (va < virtual_avail)
|
||||
panic("pmap_rmk4m: attempt to free base kernel addr %lx", va);
|
||||
if (sp->sg_pte == NULL || rp->rg_seg_ptps == NULL)
|
||||
panic("pmap_rmk: segment/region does not exist");
|
||||
if (pm->pm_ctx == NULL)
|
||||
@ -4217,34 +4153,10 @@ pmap_rmk4m(pm, va, endva, vr, vs)
|
||||
va += NBPG;
|
||||
}
|
||||
|
||||
/*
|
||||
* If the segment is all gone, remove it from everyone and
|
||||
* flush the TLB.
|
||||
*/
|
||||
if ((sp->sg_npte = nleft) == 0) {
|
||||
va = VSTOVA(vr,vs); /* retract */
|
||||
|
||||
tlb_flush_segment(vr, vs); /* Paranoia? */
|
||||
|
||||
/*
|
||||
* We need to free the segment table. The problem is that
|
||||
* we can't free the initial (bootstrap) mapping, so
|
||||
* we have to explicitly check for this case (ugh).
|
||||
*/
|
||||
if (va < virtual_avail) {
|
||||
#ifdef DEBUG
|
||||
printf("pmap_rmk4m: attempt to free base kernel alloc\n");
|
||||
#endif
|
||||
/* sp->sg_pte = NULL; */
|
||||
sp->sg_npte = 0;
|
||||
return;
|
||||
}
|
||||
/* no need to free the table; it is statically allocated */
|
||||
qzero(sp->sg_pte, SRMMU_L3SIZE * sizeof(long));
|
||||
}
|
||||
/* if we're done with a region, leave it wired */
|
||||
sp->sg_npte = nleft;
|
||||
}
|
||||
#endif /* SUN4M */
|
||||
|
||||
/*
|
||||
* Just like pmap_rmk_magic, but we have a different threshold.
|
||||
* Note that this may well deserve further tuning work.
|
||||
@ -5046,12 +4958,6 @@ pmap_page_protect4m(pg, prot)
|
||||
#endif
|
||||
goto nextpv;
|
||||
}
|
||||
#if 0 /* no need for this */
|
||||
/* no need to free the table; it is static */
|
||||
qzero(sp->sg_pte, SRMMU_L3SIZE * sizeof(int));
|
||||
#endif
|
||||
|
||||
/* if we're done with a region, leave it */
|
||||
|
||||
} else { /* User mode mapping */
|
||||
if (pm->pm_ctx)
|
||||
|
||||
Loading…
Reference in New Issue
Block a user