summaryrefslogtreecommitdiff
path: root/sys
diff options
context:
space:
mode:
Diffstat (limited to 'sys')
-rw-r--r--sys/arch/sparc/include/psl.h3
-rw-r--r--sys/arch/sparc/sparc/pmap.c110
2 files changed, 67 insertions, 46 deletions
diff --git a/sys/arch/sparc/include/psl.h b/sys/arch/sparc/include/psl.h
index 2016f5b8ca6..c724cfa20df 100644
--- a/sys/arch/sparc/include/psl.h
+++ b/sys/arch/sparc/include/psl.h
@@ -1,4 +1,4 @@
-/* $OpenBSD: psl.h,v 1.15 2002/08/12 10:44:04 miod Exp $ */
+/* $OpenBSD: psl.h,v 1.16 2002/11/11 05:04:44 miod Exp $ */
/* $NetBSD: psl.h,v 1.12 1997/03/10 21:49:11 pk Exp $ */
/*
@@ -226,7 +226,6 @@ SPLHOLD(spltty, IPL_TTY)
SPLHOLD(splvm, IPL_VM)
/* XXX - the following two should die. */
#define splimp splvm
-#define splpmap splvm
SPLHOLD(splclock, IPL_CLOCK)
SPLHOLD(splfd, IPL_FD)
SPLHOLD(splzs, IPL_ZS)
diff --git a/sys/arch/sparc/sparc/pmap.c b/sys/arch/sparc/sparc/pmap.c
index bdfb5a0f18e..c36b0facd07 100644
--- a/sys/arch/sparc/sparc/pmap.c
+++ b/sys/arch/sparc/sparc/pmap.c
@@ -1,4 +1,4 @@
-/* $OpenBSD: pmap.c,v 1.130 2002/10/28 19:30:21 art Exp $ */
+/* $OpenBSD: pmap.c,v 1.131 2002/11/11 05:04:46 miod Exp $ */
/* $NetBSD: pmap.c,v 1.118 1998/05/19 19:00:18 thorpej Exp $ */
/*
@@ -1612,7 +1612,7 @@ printf("mmu_pagein: kernel wants map at va 0x%x, vr %d, vs %d\n", va, vr, vs);
unsigned int tva = VA_ROUNDDOWNTOREG(va);
struct segmap *sp = rp->rg_segmap;
- s = splpmap(); /* paranoid */
+ s = splvm(); /* paranoid */
smeg = region_alloc(&region_lru, pm, vr)->me_cookie;
setregmap(tva, smeg);
i = NSEGRG;
@@ -1635,7 +1635,7 @@ printf("mmu_pagein: kernel wants map at va 0x%x, vr %d, vs %d\n", va, vr, vs);
/* reload segment: write PTEs into a new LRU entry */
va = VA_ROUNDDOWNTOSEG(va);
- s = splpmap(); /* paranoid */
+ s = splvm(); /* paranoid */
pmeg = me_alloc(&segm_lru, pm, vr, vs)->me_cookie;
setsegmap(va, pmeg);
i = NPTESG;
@@ -1677,7 +1677,7 @@ ctx_alloc(pm)
gap_end = pm->pm_gap_end;
}
- s = splpmap();
+ s = splvm();
if ((c = ctx_freelist) != NULL) {
ctx_freelist = c->c_nextfree;
cnum = c - cpuinfo.ctxinfo;
@@ -1907,7 +1907,7 @@ pv_changepte4_4c(pv0, bis, bic)
write_user_windows(); /* paranoid? */
- s = splpmap(); /* paranoid? */
+ s = splvm(); /* paranoid? */
if (pv0->pv_pmap == NULL) {
splx(s);
return;
@@ -2006,7 +2006,7 @@ pv_syncflags4_4c(pv0)
write_user_windows(); /* paranoid? */
- s = splpmap(); /* paranoid? */
+ s = splvm(); /* paranoid? */
if (pv0->pv_pmap == NULL) { /* paranoid */
splx(s);
return (0);
@@ -2158,6 +2158,7 @@ pv_link4_4c(pv, pm, va, nc)
pv->pv_flags |= nc ? PV_NC : 0;
return (ret);
}
+
/*
* Before entering the new mapping, see if
* it will cause old mappings to become aliased
@@ -2189,6 +2190,7 @@ pv_link4_4c(pv, pm, va, nc)
}
}
}
+
npv = pool_get(&pvpool, PR_NOWAIT);
if (npv == NULL)
panic("pv_link_4_4c: allocation failed");
@@ -2233,7 +2235,7 @@ pv_changepte4m(pv0, bis, bic)
write_user_windows(); /* paranoid? */
- s = splpmap(); /* paranoid? */
+ s = splvm(); /* paranoid? */
if (pv0->pv_pmap == NULL) {
splx(s);
return;
@@ -2321,7 +2323,7 @@ pv_syncflags4m(pv0)
write_user_windows(); /* paranoid? */
- s = splpmap(); /* paranoid? */
+ s = splvm(); /* paranoid? */
if (pv0->pv_pmap == NULL) { /* paranoid */
splx(s);
return (0);
@@ -2549,7 +2551,7 @@ pg_flushcache(struct vm_page *pg)
write_user_windows(); /* paranoia? */
- s = splpmap(); /* XXX extreme paranoia */
+ s = splvm(); /* XXX extreme paranoia */
if ((pm = pv->pv_pmap) != NULL) {
ctx = getcontext();
for (;;) {
@@ -3552,7 +3554,7 @@ pmap_release(pm)
struct pmap *pm;
{
union ctxinfo *c;
- int s = splpmap(); /* paranoia */
+ int s = splvm(); /* paranoia */
#ifdef DEBUG
if (pmapdebug & PDB_DESTROY)
@@ -3670,7 +3672,7 @@ pmap_remove(pm, va, endva)
}
ctx = getcontext();
- s = splpmap(); /* XXX conservative */
+ s = splvm(); /* XXX conservative */
simple_lock(&pm->pm_lock);
for (; va < endva; va = nva) {
/* do one virtual segment at a time */
@@ -3924,10 +3926,10 @@ pmap_rmu4_4c(pm, va, endva, vr, vs)
sp = &rp->rg_segmap[vs];
if ((nleft = sp->sg_npte) == 0)
return;
+
if (sp->sg_pte == NULL)
panic("pmap_rmu: no pages");
-
pmeg = sp->sg_pmeg;
pte0 = sp->sg_pte;
@@ -3980,8 +3982,8 @@ pmap_rmu4_4c(pm, va, endva, vr, vs)
*/
if (CTX_USABLE(pm,rp)) {
/* process has a context, must flush cache */
- npg = (endva - va) >> PGSHIFT;
setcontext4(pm->pm_ctxnum);
+ npg = (endva - va) >> PGSHIFT;
if (npg > PMAP_RMU_MAGIC) {
perpage = 0; /* flush the whole segment */
cache_flush_segment(vr, vs);
@@ -4195,10 +4197,10 @@ pmap_page_protect4_4c(struct vm_page *pg, vm_prot_t prot)
(pmapdebug & PDB_REMOVE && prot == VM_PROT_NONE))
printf("pmap_page_protect(0x%lx, 0x%x)\n", pa, prot);
#endif
+ pv = &pg->mdpage.pv_head;
/*
* Skip operations that do not take away write permission.
*/
- pv = &pg->mdpage.pv_head;
if (prot & VM_PROT_WRITE)
return;
write_user_windows(); /* paranoia */
@@ -4213,7 +4215,7 @@ pmap_page_protect4_4c(struct vm_page *pg, vm_prot_t prot)
* The logic is much like that for pmap_remove,
* but we know we are removing exactly one page.
*/
- s = splpmap();
+ s = splvm();
if ((pm = pv->pv_pmap) == NULL) {
splx(s);
return;
@@ -4221,18 +4223,22 @@ pmap_page_protect4_4c(struct vm_page *pg, vm_prot_t prot)
ctx = getcontext4();
pv0 = pv;
flags = pv->pv_flags & ~PV_NC;
- for (;; pm = pv->pv_pmap) {
+ while (pv != NULL) {
+ pm = pv->pv_pmap;
va = pv->pv_va;
vr = VA_VREG(va);
vs = VA_VSEG(va);
rp = &pm->pm_regmap[vr];
+#ifdef DIAGNOSTIC
if (rp->rg_nsegmap == 0)
panic("pmap_remove_all: empty vreg");
+#endif
sp = &rp->rg_segmap[vs];
- if ((nleft = sp->sg_npte) == 0)
+#ifdef DIAGNOSTIC
+ if (sp->sg_npte == 0)
panic("pmap_remove_all: empty vseg");
- nleft--;
- sp->sg_npte = nleft;
+#endif
+ nleft = --sp->sg_npte;
if (sp->sg_pmeg == seginval) {
/* Definitely not a kernel map */
@@ -4274,9 +4280,11 @@ pmap_page_protect4_4c(struct vm_page *pg, vm_prot_t prot)
}
tpte = getpte4(pteva);
+#ifdef DIAGNOSTIC
if ((tpte & PG_V) == 0)
panic("pmap_page_protect !PG_V: ctx %d, va 0x%x, pte 0x%x",
pm->pm_ctxnum, va, tpte);
+#endif
flags |= MR4_4C(tpte);
if (nleft) {
@@ -4342,11 +4350,10 @@ pmap_page_protect4_4c(struct vm_page *pg, vm_prot_t prot)
npv = pv->pv_next;
if (pv != pv0)
pool_put(&pvpool, pv);
- if ((pv = npv) == NULL)
- break;
+ pv = npv;
}
pv0->pv_pmap = NULL;
- pv0->pv_next = NULL; /* ? */
+ pv0->pv_next = NULL;
pv0->pv_flags = flags;
setcontext4(ctx);
splx(s);
@@ -4362,10 +4369,7 @@ pmap_page_protect4_4c(struct vm_page *pg, vm_prot_t prot)
* fairly easy.
*/
void
-pmap_protect4_4c(pm, sva, eva, prot)
- struct pmap *pm;
- vaddr_t sva, eva;
- vm_prot_t prot;
+pmap_protect4_4c(struct pmap *pm, vaddr_t sva, vaddr_t eva, vm_prot_t prot)
{
int va, nva, vr, vs;
int s, ctx;
@@ -4382,7 +4386,7 @@ pmap_protect4_4c(pm, sva, eva, prot)
write_user_windows();
ctx = getcontext4();
- s = splpmap();
+ s = splvm();
simple_lock(&pm->pm_lock);
for (va = sva; va < eva;) {
@@ -4407,7 +4411,7 @@ if (nva == 0) panic("pmap_protect: last segment"); /* cannot happen */
continue;
}
#ifdef DEBUG
- if (pm != pmap_kernel() && sp->sg_pte == NULL)
+ if (sp->sg_pte == NULL)
panic("pmap_protect: no pages");
#endif
if (sp->sg_pmeg == seginval) {
@@ -4491,14 +4495,16 @@ pmap_changeprot4_4c(pm, va, prot, wired)
newprot = prot & VM_PROT_WRITE ? PG_W : 0;
vr = VA_VREG(va);
vs = VA_VSEG(va);
- s = splpmap(); /* conservative */
+ s = splvm(); /* conservative */
rp = &pm->pm_regmap[vr];
if (rp->rg_nsegmap == 0) {
printf("pmap_changeprot: no segments in %d\n", vr);
+ splx(s);
return;
}
if (rp->rg_segmap == NULL) {
printf("pmap_changeprot: no segments in %d!\n", vr);
+ splx(s);
return;
}
sp = &rp->rg_segmap[vs];
@@ -4605,7 +4611,7 @@ pmap_page_protect4m(struct vm_page *pg, vm_prot_t prot)
* The logic is much like that for pmap_remove,
* but we know we are removing exactly one page.
*/
- s = splpmap();
+ s = splvm();
if ((pm = pv->pv_pmap) == NULL) {
splx(s);
return;
@@ -4710,7 +4716,7 @@ pmap_protect4m(struct pmap *pm, vaddr_t sva, vaddr_t eva, vm_prot_t prot)
write_user_windows();
ctx = getcontext4m();
- s = splpmap();
+ s = splvm();
simple_lock(&pm->pm_lock);
for (va = sva; va < eva;) {
@@ -4743,7 +4749,7 @@ pmap_protect4m(struct pmap *pm, vaddr_t sva, vaddr_t eva, vm_prot_t prot)
if (pm->pm_ctx)
setcontext4m(pm->pm_ctxnum);
- pmap_stats.ps_npg_prot_all = (nva - va) >> PGSHIFT;
+ pmap_stats.ps_npg_prot_all += (nva - va) >> PGSHIFT;
for (; va < nva; va += NBPG) {
int tpte, npte;
@@ -4801,7 +4807,7 @@ pmap_changeprot4m(pm, va, prot, wired)
pmap_stats.ps_changeprots++;
- s = splpmap(); /* conservative */
+ s = splvm(); /* conservative */
ptep = getptep4m(pm, va);
if (pm->pm_ctx) {
ctx = getcontext4m();
@@ -4895,7 +4901,7 @@ pmap_enter4_4c(pm, va, pa, prot, flags)
else
ret = pmap_enu4_4c(pm, va, prot, flags, pv, pteproto);
#ifdef DIAGNOSTIC
- if ((flags & PMAP_CANFAIL) == 0 && ret)
+ if ((flags & PMAP_CANFAIL) == 0 && ret != 0)
panic("pmap_enter4_4c: can't fail, but did");
#endif
setcontext4(ctx);
@@ -4922,7 +4928,7 @@ pmap_enk4_4c(pm, va, prot, flags, pv, pteproto)
vs = VA_VSEG(va);
rp = &pm->pm_regmap[vr];
sp = &rp->rg_segmap[vs];
- s = splpmap(); /* XXX way too conservative */
+ s = splvm(); /* XXX way too conservative */
#if defined(SUN4_MMU3L)
if (HASSUN4_MMU3L && rp->rg_smeg == reginval) {
@@ -5045,7 +5051,7 @@ pmap_enu4_4c(pm, va, prot, flags, pv, pteproto)
vr = VA_VREG(va);
vs = VA_VSEG(va);
rp = &pm->pm_regmap[vr];
- s = splpmap(); /* XXX conservative */
+ s = splvm(); /* XXX conservative */
/*
* If there is no space in which the PTEs can be written
@@ -5193,7 +5199,25 @@ pmap_kenter_pa4_4c(va, pa, prot)
paddr_t pa;
vm_prot_t prot;
{
- pmap_enter4_4c(pmap_kernel(), va, pa, prot, PMAP_WIRED);
+ struct pvlist *pv;
+ int pteproto, ctx;
+
+ pteproto = PG_S | PG_V | PMAP_T2PTE_4(pa);
+ if (prot & VM_PROT_WRITE)
+ pteproto |= PG_W;
+
+ pa &= ~PMAP_TNC_4;
+
+ if ((pteproto & PG_TYPE) == PG_OBMEM)
+ pv = pvhead(atop(pa));
+ else
+ pv = NULL;
+
+ pteproto |= atop(pa) & PG_PFNUM;
+
+ ctx = getcontext4();
+ pmap_enk4_4c(pmap_kernel(), va, prot, PMAP_WIRED, pv, pteproto);
+ setcontext4(ctx);
}
void
@@ -5201,9 +5225,7 @@ pmap_kremove4_4c(va, len)
vaddr_t va;
vsize_t len;
{
- for (len >>= PAGE_SHIFT; len > 0; len--, va += PAGE_SIZE) {
- pmap_remove(pmap_kernel(), va, va + PAGE_SIZE);
- }
+ pmap_remove(pmap_kernel(), va, va + len);
}
#endif /*sun4,4c*/
@@ -5311,7 +5333,7 @@ pmap_enk4m(pm, va, prot, flags, pv, pteproto)
rp = &pm->pm_regmap[VA_VREG(va)];
sp = &rp->rg_segmap[VA_VSEG(va)];
- s = splpmap(); /* XXX way too conservative */
+ s = splvm(); /* XXX way too conservative */
#ifdef DEBUG
if (rp->rg_seg_ptps == NULL) /* enter new region */
@@ -5522,7 +5544,7 @@ pmap_kenter_pa4m(va, pa, prot)
pv = pvhead(atop(pa));
ctx = getcontext4m();
- pmap_enk4m(pmap_kernel(), va, prot, TRUE, pv, pteproto);
+ pmap_enk4m(pmap_kernel(), va, prot, PMAP_WIRED, pv, pteproto);
setcontext4m(ctx);
}
@@ -6205,7 +6227,7 @@ pmap_activate(p)
* the new context.
*/
- s = splpmap();
+ s = splvm();
if (p == curproc) {
write_user_windows();
if (pmap->pm_ctx == NULL) {
@@ -6529,7 +6551,7 @@ pmap_writetext(dst, ch)
int s, pte0, pte, ctx;
vaddr_t va;
- s = splpmap();
+ s = splvm();
va = (unsigned long)dst & (~PGOFSET);
cpuinfo.cache_flush(dst, 1);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-11 18:33:40 +0000