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Code Issues Releases Activity

Remove PTE_ISFAKE. While here remove code

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between "#if 0" and "#endif".
This commit is contained in:
Marcel Moolenaar 2009-04-24 02:53:38 +00:00
parent d4f7b23302
commit d6a8fa0577
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=191445
1 changed files with 9 additions and 53 deletions
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62
sys/powerpc/booke/pmap.c
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@ -757,27 +757,21 @@ pte_remove(mmu_t mmu, pmap_t pmap, vm_offset_t va, uint8_t flags)
if (pte == NULL || !PTE_ISVALID(pte)) if (pte == NULL || !PTE_ISVALID(pte))
return (0); return (0);
/* Get vm_page_t for mapped pte. */
m = PHYS_TO_VM_PAGE(PTE_PA(pte));
if (PTE_ISWIRED(pte)) if (PTE_ISWIRED(pte))
pmap->pm_stats.wired_count--; pmap->pm_stats.wired_count--;
if (!PTE_ISFAKE(pte)) { /* Handle managed entry. */
/* Handle managed entry. */ if (PTE_ISMANAGED(pte)) {
if (PTE_ISMANAGED(pte)) { /* Get vm_page_t for mapped pte. */
m = PHYS_TO_VM_PAGE(PTE_PA(pte));
/* Handle modified pages. */ if (PTE_ISMODIFIED(pte))
if (PTE_ISMODIFIED(pte)) vm_page_dirty(m);
vm_page_dirty(m);
/* Referenced pages. */ if (PTE_ISREFERENCED(pte))
if (PTE_ISREFERENCED(pte)) vm_page_flag_set(m, PG_REFERENCED);
vm_page_flag_set(m, PG_REFERENCED);
/* Remove pv_entry from pv_list. */ pv_remove(pmap, va, m);
pv_remove(pmap, va, m);
}
} }
mtx_lock_spin(&tlbivax_mutex); mtx_lock_spin(&tlbivax_mutex);
@ -847,8 +841,6 @@ pte_enter(mmu_t mmu, pmap_t pmap, vm_page_t m, vm_offset_t va, uint32_t flags)
/* Create and insert pv entry. */ /* Create and insert pv entry. */
pv_insert(pmap, va, m); pv_insert(pmap, va, m);
} }
} else {
flags |= PTE_FAKE;
} }
pmap->pm_stats.resident_count++; pmap->pm_stats.resident_count++;
@ -1297,23 +1289,7 @@ mmu_booke_kenter(mmu_t mmu, vm_offset_t va, vm_offset_t pa)
KASSERT(((va >= VM_MIN_KERNEL_ADDRESS) && KASSERT(((va >= VM_MIN_KERNEL_ADDRESS) &&
(va <= VM_MAX_KERNEL_ADDRESS)), ("mmu_booke_kenter: invalid va")); (va <= VM_MAX_KERNEL_ADDRESS)), ("mmu_booke_kenter: invalid va"));
#if 0
/* assume IO mapping, set I, G bits */
flags = (PTE_G | PTE_I | PTE_FAKE);
/* if mapping is within system memory, do not set I, G bits */
for (i = 0; i < totalmem_regions_sz; i++) {
if ((pa >= totalmem_regions[i].mr_start) &&
(pa < (totalmem_regions[i].mr_start +
totalmem_regions[i].mr_size))) {
flags &= ~(PTE_I | PTE_G | PTE_FAKE);
break;
}
}
#else
flags = 0; flags = 0;
#endif
flags |= (PTE_SR | PTE_SW | PTE_SX | PTE_WIRED | PTE_VALID); flags |= (PTE_SR | PTE_SW | PTE_SX | PTE_WIRED | PTE_VALID);
flags |= PTE_M; flags |= PTE_M;
@ -1431,14 +1407,6 @@ mmu_booke_release(mmu_t mmu, pmap_t pmap)
PMAP_LOCK_DESTROY(pmap); PMAP_LOCK_DESTROY(pmap);
} }
#if 0
/* Not needed, kernel page tables are statically allocated. */
void
mmu_booke_growkernel(vm_offset_t maxkvaddr)
{
}
#endif
/* /*
* Insert the given physical page at the specified virtual address in the * Insert the given physical page at the specified virtual address in the
* target physical map with the protection requested. If specified the page * target physical map with the protection requested. If specified the page
@ -2031,18 +1999,6 @@ mmu_booke_copy_page(mmu_t mmu, vm_page_t sm, vm_page_t dm)
mtx_unlock(&copy_page_mutex); mtx_unlock(&copy_page_mutex);
} }
#if 0
/*
* Remove all pages from specified address space, this aids process exit
* speeds. This is much faster than mmu_booke_remove in the case of running
* down an entire address space. Only works for the current pmap.
*/
void
mmu_booke_remove_pages(pmap_t pmap)
{
}
#endif
/* /*
* mmu_booke_zero_page_idle zeros the specified hardware page by mapping it * mmu_booke_zero_page_idle zeros the specified hardware page by mapping it
* into virtual memory and using bzero to clear its contents. This is intended * into virtual memory and using bzero to clear its contents. This is intended