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Retire PVO_EXECUTABLE. It's neither used nor set correctly.

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This commit is contained in:
Alan Cox 2014-08-01 04:53:35 +00:00
parent 21b787b81a
commit eb2af3e758
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=269368
2 changed files with 0 additions and 8 deletions
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7
sys/powerpc/aim/mmu_oea.c
View File

@ -1184,9 +1184,6 @@ moea_enter_locked(pmap_t pmap, vm_offset_t va, vm_page_t m, vm_prot_t prot,
} else
pte_lo |= PTE_BR;
if (prot & VM_PROT_EXECUTE)
pvo_flags |= PVO_EXECUTABLE;
if (wired)
pvo_flags |= PVO_WIRED;
@ -1742,8 +1739,6 @@ moea_protect(mmu_t mmu, pmap_t pm, vm_offset_t sva, vm_offset_t eva,
for (pvo = RB_NFIND(pvo_tree, &pm->pmap_pvo, &key);
pvo != NULL && PVO_VADDR(pvo) < eva; pvo = tpvo) {
tpvo = RB_NEXT(pvo_tree, &pm->pmap_pvo, pvo);
if ((prot & VM_PROT_EXECUTE) == 0)
pvo->pvo_vaddr &= ~PVO_EXECUTABLE;
/*
* Grab the PTE pointer before we diddle with the cached PTE
@ -1999,8 +1994,6 @@ moea_pvo_enter(pmap_t pm, uma_zone_t zone, struct pvo_head *pvo_head,
pvo->pvo_pmap = pm;
LIST_INSERT_HEAD(&moea_pvo_table[ptegidx], pvo, pvo_olink);
pvo->pvo_vaddr &= ~ADDR_POFF;
if (flags & VM_PROT_EXECUTE)
pvo->pvo_vaddr |= PVO_EXECUTABLE;
if (flags & PVO_WIRED)
pvo->pvo_vaddr |= PVO_WIRED;
if (pvo_head != &moea_pvo_kunmanaged)

1
sys/powerpc/include/pmap.h
View File

@ -112,7 +112,6 @@ RB_PROTOTYPE(pvo_tree, pvo_entry, pvo_plink, pvo_vaddr_compare);
#define PVO_PTEGIDX_VALID 0x008UL /* slot is valid */
#define PVO_WIRED 0x010UL /* PVO entry is wired */
#define PVO_MANAGED 0x020UL /* PVO entry is managed */
#define PVO_EXECUTABLE 0x040UL /* PVO entry is executable */
#define PVO_BOOTSTRAP 0x080UL /* PVO entry allocated during
bootstrap */
#define PVO_LARGE 0x200UL /* large page */