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Code Issues Releases Activity

Avoid using pmap_kenter "early", since it may need to dink with vm_page

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structures, which may not be setup yet.  Minor cleanups.
This commit is contained in:
Jake Burkholder 2002-04-21 22:57:42 +00:00
parent 7ac993bf17
commit 11dcdc976b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=95232
1 changed files with 32 additions and 24 deletions
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56
sys/sparc64/sparc64/pmap.c
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@ -256,7 +256,6 @@ void
pmap_bootstrap(vm_offset_t ekva)
{
struct pmap *pm;
struct tte tte;
struct tte *tp;
vm_offset_t off;
vm_offset_t pa;
@ -323,8 +322,12 @@ pmap_bootstrap(vm_offset_t ekva)
for (i = 0; i < kernel_tlb_slots; i++) {
va = TV_GET_VA(kernel_ttes[i].tte_vpn);
pa = TD_GET_PA(kernel_ttes[i].tte_data);
for (off = 0; off < PAGE_SIZE_4M; off += PAGE_SIZE)
pmap_kenter(va + off, pa + off);
for (off = 0; off < PAGE_SIZE_4M; off += PAGE_SIZE) {
tp = tsb_kvtotte(va + off);
tp->tte_vpn = TV_VPN(va + off);
tp->tte_data = TD_V | TD_8K | TD_PA(pa + off) |
TD_REF | TD_SW | TD_CP | TD_CV | TD_P | TD_W;
}
}
/*
@ -338,8 +341,10 @@ pmap_bootstrap(vm_offset_t ekva)
for (i = 0; i < KSTACK_PAGES; i++) {
pa = kstack0_phys + i * PAGE_SIZE;
va = kstack0 + i * PAGE_SIZE;
pmap_kenter(va, pa);
/* tlb_page_demap(TLB_DTLB, kernel_pmap, va); */
tp = tsb_kvtotte(va);
tp->tte_vpn = TV_VPN(va);
tp->tte_data = TD_V | TD_8K | TD_PA(pa) | TD_REF | TD_SW |
TD_CP | TD_CV | TD_P | TD_W;
}
/*
@ -373,13 +378,9 @@ pmap_bootstrap(vm_offset_t ekva)
for (off = 0; off < translations[i].om_size;
off += PAGE_SIZE) {
va = translations[i].om_start + off;
tte.tte_data = translations[i].om_tte + off;
tte.tte_vpn = TV_VPN(va);
tp = tsb_kvtotte(va);
CTR4(KTR_PMAP,
"mapping: va=%#lx tp=%p tte=%#lx pa=%#lx",
va, tp, tte.tte_data, TD_GET_PA(tte.tte_data));
*tp = tte;
tp->tte_vpn = TV_VPN(va);
tp->tte_data = translations[i].om_tte + off;
}
}
@ -407,6 +408,8 @@ pmap_bootstrap(vm_offset_t ekva)
pm->pm_active = ~0;
pm->pm_count = 1;
TAILQ_INIT(&pm->pm_pvlist);
/* XXX flush all non-locked tlb entries */
}
void
@ -426,6 +429,7 @@ pmap_map_tsb(void)
for (i = 0; i < KVA_PAGES; i++) {
va = (vm_offset_t)tsb_kernel + i * PAGE_SIZE_4M;
pa = tsb_kernel_phys + i * PAGE_SIZE_4M;
/* XXX - cheetah */
data = TD_V | TD_4M | TD_PA(pa) | TD_L | TD_CP | TD_CV |
TD_P | TD_W;
stxa(AA_DMMU_TAR, ASI_DMMU, TLB_TAR_VA(va) |
@ -484,6 +488,7 @@ pmap_context_rollover(void)
mtx_assert(&sched_lock, MA_OWNED);
CTR0(KTR_PMAP, "pmap_context_rollover");
for (i = 0; i < 64; i++) {
/* XXX - cheetah */
data = ldxa(TLB_DAR_SLOT(i), ASI_DTLB_DATA_ACCESS_REG);
tag = ldxa(TLB_DAR_SLOT(i), ASI_DTLB_TAG_READ_REG);
if ((data & TD_V) != 0 && (data & TD_L) == 0 &&
@ -662,16 +667,14 @@ pmap_cache_remove(vm_page_t m, vm_offset_t va)
void
pmap_kenter(vm_offset_t va, vm_offset_t pa)
{
struct tte tte;
struct tte *tp;
tte.tte_vpn = TV_VPN(va);
tte.tte_data = TD_V | TD_8K | TD_PA(pa) | TD_REF | TD_SW | TD_CP |
TD_CV | TD_P | TD_W;
tp = tsb_kvtotte(va);
CTR4(KTR_PMAP, "pmap_kenter: va=%#lx pa=%#lx tp=%p data=%#lx",
va, pa, tp, tp->tte_data);
*tp = tte;
tp->tte_vpn = TV_VPN(va);
tp->tte_data = TD_V | TD_8K | TD_PA(pa) | TD_REF | TD_SW | TD_CP |
TD_CV | TD_P | TD_W;
}
/*
@ -684,15 +687,13 @@ pmap_kenter(vm_offset_t va, vm_offset_t pa)
void
pmap_kenter_flags(vm_offset_t va, vm_offset_t pa, u_long flags)
{
struct tte tte;
struct tte *tp;
tte.tte_vpn = TV_VPN(va);
tte.tte_data = TD_V | TD_8K | TD_PA(pa) | TD_REF | TD_P | flags;
tp = tsb_kvtotte(va);
CTR4(KTR_PMAP, "pmap_kenter_flags: va=%#lx pa=%#lx tp=%p data=%#lx",
va, pa, tp, tp->tte_data);
*tp = tte;
tp->tte_vpn = TV_VPN(va);
tp->tte_data = TD_V | TD_8K | TD_PA(pa) | TD_REF | TD_P | flags;
}
/*
@ -734,6 +735,7 @@ pmap_kremove(vm_offset_t va)
vm_offset_t
pmap_map(vm_offset_t *virt, vm_offset_t pa_start, vm_offset_t pa_end, int prot)
{
struct tte *tp;
vm_offset_t sva;
vm_offset_t va;
vm_offset_t pa;
@ -741,8 +743,12 @@ pmap_map(vm_offset_t *virt, vm_offset_t pa_start, vm_offset_t pa_end, int prot)
pa = pa_start;
sva = *virt;
va = sva;
for (; pa < pa_end; pa += PAGE_SIZE, va += PAGE_SIZE)
pmap_kenter(va, pa);
for (; pa < pa_end; pa += PAGE_SIZE, va += PAGE_SIZE) {
tp = tsb_kvtotte(va);
tp->tte_vpn = TV_VPN(va);
tp->tte_data = TD_V | TD_8K | TD_PA(pa) | TD_REF | TD_SW |
TD_CP | TD_CV | TD_P | TD_W;
}
tlb_range_demap(kernel_pmap, sva, sva + (pa_end - pa_start) - 1);
*virt = va;
return (sva);
@ -977,8 +983,10 @@ pmap_new_thread(struct thread *td)
(KSTACK_PAGES + KSTACK_GUARD_PAGES) * PAGE_SIZE);
if (ks == 0)
panic("pmap_new_thread: kstack allocation failed");
tlb_page_demap(TLB_DTLB, kernel_pmap, ks);
ks += KSTACK_GUARD_PAGES * PAGE_SIZE;
if (KSTACK_GUARD_PAGES != 0) {
tlb_page_demap(TLB_DTLB, kernel_pmap, ks);
ks += KSTACK_GUARD_PAGES * PAGE_SIZE;
}
td->td_kstack = ks;
}