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

Fix cache bit confusion in pmap_alloc_cpu().

This commit is contained in:
pk 1998-09-14 09:46:11 +00:00
parent bd946d241e
commit b1b69e4195
1 changed files with 4 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
sys/arch/sparc/sparc/pmap.c
View File

@ -1,4 +1,4 @@
/* $NetBSD: pmap.c,v 1.128 1998/09/12 14:11:53 pk Exp $ */
/* $NetBSD: pmap.c,v 1.129 1998/09/14 09:46:11 pk Exp $ */
/*
* Copyright (c) 1996
@ -3604,7 +3604,7 @@ pmap_alloc_cpu(sc)
vm_page_t m;
int cachebit;
cachebit = ((sc->flags & CPUFLG_CACHEPAGETABLES) != 0) ? SRMMU_PG_C : 0;
cachebit = (sc->flags & CPUFLG_CACHEPAGETABLES) != 0;
/*
* Allocate properly aligned and contiguous physically memory
@ -3628,7 +3628,7 @@ pmap_alloc_cpu(sc)
/* Map the pages */
for (; m != NULL; m = TAILQ_NEXT(m,pageq)) {
paddr_t pa = VM_PAGE_TO_PHYS(m);
pmap_enter(pmap_kernel(), va, pa | cachebit,
pmap_enter(pmap_kernel(), va, pa | (cachebit ? 0 : PMAP_NC),
VM_PROT_READ|VM_PROT_WRITE, 1);
va += NBPG;
}
@ -3671,17 +3671,10 @@ pmap_alloc_cpu(sc)
qcopy(sp->sg_pte, pagtable, SRMMU_L3SIZE * sizeof(int));
setpgt4m(&pagtable[vpg],
(VA2PA((caddr_t)sc) >> SRMMU_PPNPASHIFT) |
(SRMMU_TEPTE | PPROT_RWX_RWX | cachebit));
(SRMMU_TEPTE | PPROT_N_RWX | SRMMU_PG_C));
sc->ctx_tbl = ctxtable;
sc->L1_ptps = regtable;
#ifdef DEBUG
{char bits[64];
int pte = lda(((u_int)regtable & ~0xfff) | ASI_SRMMUFP_L3, ASI_SRMMUFP);
printf("regtab PTE at %p = %s\n", regtable,
bitmask_snprintf(pte, SRMMU_PTE_BITS, bits, sizeof(bits)));
}
#endif
}
#endif /* SUN4M */