From a95a014852d6390c812b8cb5677bacdce3c6bc82 Mon Sep 17 00:00:00 2001 From: jhibbits Date: Sun, 2 Mar 2014 15:53:39 +0000 Subject: [PATCH] MFC r261258 Use a loop of dcbz, instead of calling bzero() to zero a page. This matches what is done in mmu_oea64.c. --- sys/powerpc/aim/mmu_oea.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/sys/powerpc/aim/mmu_oea.c b/sys/powerpc/aim/mmu_oea.c index ac3e9fe8a59..5451bc3c6bc 100644 --- a/sys/powerpc/aim/mmu_oea.c +++ b/sys/powerpc/aim/mmu_oea.c @@ -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); } /* -- 2.45.2