Date: Fri, 9 May 2003 10:58:16 -0700 (PDT) From: Juli Mallett <jmallett@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 30854 for review Message-ID: <200305091758.h49HwGkG075948@repoman.freebsd.org>
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http://perforce.freebsd.org/chv.cgi?CH=30854 Change 30854 by jmallett@jmallett_dalek on 2003/05/09 10:57:31 page zeroing from alpha. Affected files ... .. //depot/projects/mips/sys/mips/mips/pmap.c#11 edit Differences ... ==== //depot/projects/mips/sys/mips/mips/pmap.c#11 (text+ko) ==== @@ -304,16 +304,33 @@ return (0); } +/* + * pmap_zero_page zeros the specified hardware page by + * mapping it into virtual memory and using bzero to clear + * its contents. + */ + void pmap_zero_page(vm_page_t m) { - UNIMPL(); + vm_offset_t va = MIPS_PHYS_TO_KSEG0(VM_PAGE_TO_PHYS(m)); + bzero((caddr_t) va, PAGE_SIZE); } + +/* + * pmap_zero_page_area zeros the specified hardware page by + * mapping it into virtual memory and using bzero to clear + * its contents. + * + * off and size must reside within a single page. + */ + void -pmap_zero_page_area(vm_page_t pa, int off, int size) +pmap_zero_page_area(vm_page_t m, int off, int size) { - UNIMPL(); + vm_offset_t va = MIPS_PHYS_TO_KSEG0(VM_PAGE_TO_PHYS(m)); + bzero((char *)(caddr_t)va + off, size); } void
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