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Use a loop of dcbz, instead of calling bzero() to zero a page. This matches

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what is done in mmu_oea64.c.

MFC after:	1 month
This commit is contained in:
jhibbits 2014-01-29 05:58:08 +00:00
parent 9d639789f0
commit d106d865ac
1 changed files with 4 additions and 6 deletions
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10
sys/powerpc/aim/mmu_oea.c
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@ -1084,10 +1084,10 @@ moea_copy_pages(mmu_t mmu, vm_page_t *ma, vm_offset_t a_offset,
void
moea_zero_page(mmu_t mmu, vm_page_t m)
{
vm_offset_t pa = VM_PAGE_TO_PHYS(m);
void *va = (void *)pa;
vm_offset_t off, pa = VM_PAGE_TO_PHYS(m);
bzero(va, PAGE_SIZE);
for (off = 0; off < PAGE_SIZE; off += cacheline_size)
__asm __volatile("dcbz 0,%0" :: "r"(pa + off));
}
void
@ -1102,10 +1102,8 @@ moea_zero_page_area(mmu_t mmu, vm_page_t m, int off, int size)
void
moea_zero_page_idle(mmu_t mmu, vm_page_t m)
{
vm_offset_t pa = VM_PAGE_TO_PHYS(m);
void *va = (void *)pa;
bzero(va, PAGE_SIZE);
moea_zero_page(mmu, m);
}
/*