Date: Mon, 7 Apr 2003 17:26:07 -0700 (PDT) From: Peter Wemm <peter@FreeBSD.org> To: Perforce Change Reviews <perforce@freebsd.org> Subject: PERFORCE change 28466 for review Message-ID: <200304080026.h380Q7d9057822@repoman.freebsd.org>
next in thread | raw e-mail | index | archive | help
http://perforce.freebsd.org/chv.cgi?CH=28466 Change 28466 by peter@peter_overcee on 2003/04/07 17:25:56 update some 4MB page references to 2MB Affected files ... .. //depot/projects/hammer/sys/x86_64/x86_64/pmap.c#17 edit Differences ... ==== //depot/projects/hammer/sys/x86_64/x86_64/pmap.c#17 (text+ko) ==== @@ -246,8 +246,8 @@ /* * Move the kernel virtual free pointer to the next - * 4MB. This is used to help improve performance - * by using a large (4MB) page for much of the kernel + * 2MB. This is used to help improve performance + * by using a large (2MB) page for much of the kernel * (.text, .data, .bss) */ static vm_offset_t @@ -255,6 +255,9 @@ { vm_offset_t newaddr = addr; +#if 0 + newaddr = (addr + (NBPDR - 1)) & ~(NBPDR - 1); +#endif return newaddr; } @@ -364,9 +367,11 @@ pgeflag = 0; /* - * Initialize the 4MB page size flag + * Initialize the 2MB page size flag */ - pseflag = 0; +#if 0 + pseflag = PG_PS; +#endif invltlb(); } @@ -1185,7 +1190,7 @@ ptepa = (vm_offset_t) pmap->pm_pdir[ptepindex]; /* - * This supports switching from a 4MB page to a + * This supports switching from a 2MB page to a * normal 4K page. */ if (ptepa & PG_PS) { @@ -1807,7 +1812,7 @@ opa = origpte & PG_FRAME; if (origpte & PG_PS) - panic("pmap_enter: attempted pmap_enter on 4MB page"); + panic("pmap_enter: attempted pmap_enter on 2MB page"); /* * Mapping has not changed, must be protection or wiring change. @@ -1960,7 +1965,7 @@ */ if (ptepa) { if (ptepa & PG_PS) - panic("pmap_enter_quick: unexpected mapping into 4MB page"); + panic("pmap_enter_quick: unexpected mapping into 2MB page"); if (pmap->pm_pteobj->root && (pmap->pm_pteobj->root->pindex == ptepindex)) { mpte = pmap->pm_pteobj->root;
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?200304080026.h380Q7d9057822>