Module Name: src Committed By: reinoud Date: Thu Sep 15 15:34:20 UTC 2011
Modified Files: src/sys/arch/usermode/usermode: pmap.c Log Message: Implement pmap_copy_page()! That was missing a long time! To generate a diff of this commit: cvs rdiff -u -r1.69 -r1.70 src/sys/arch/usermode/usermode/pmap.c Please note that diffs are not public domain; they are subject to the copyright notices on the relevant files.
Modified files: Index: src/sys/arch/usermode/usermode/pmap.c diff -u src/sys/arch/usermode/usermode/pmap.c:1.69 src/sys/arch/usermode/usermode/pmap.c:1.70 --- src/sys/arch/usermode/usermode/pmap.c:1.69 Thu Sep 15 15:24:39 2011 +++ src/sys/arch/usermode/usermode/pmap.c Thu Sep 15 15:34:19 2011 @@ -1,4 +1,4 @@ -/* $NetBSD: pmap.c,v 1.69 2011/09/15 15:24:39 reinoud Exp $ */ +/* $NetBSD: pmap.c,v 1.70 2011/09/15 15:34:19 reinoud Exp $ */ /*- * Copyright (c) 2011 Reinoud Zandijk <rein...@netbsd.org> @@ -27,7 +27,7 @@ */ #include <sys/cdefs.h> -__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.69 2011/09/15 15:24:39 reinoud Exp $"); +__KERNEL_RCSID(0, "$NetBSD: pmap.c,v 1.70 2011/09/15 15:34:19 reinoud Exp $"); #include "opt_memsize.h" #include "opt_kmempages.h" @@ -1021,13 +1021,24 @@ memset(blob, 0, PAGE_SIZE); num = thunk_pwrite(mem_fh, blob, PAGE_SIZE, pa); if (num != PAGE_SIZE) - panic("pmap_zero_page couldn't write out\n"); + panic("%s: couldn't write out\n", __func__); } +/* XXX braindead copy page implementation but it works for now */ void pmap_copy_page(paddr_t src, paddr_t dst) { -dprintf_debug("pmap_copy_page not implemented\n"); + char blob[PAGE_SIZE]; + int num; + + dprintf_debug("pmap_copy_page: pa src %p, pa dst %p\n", + (void *) src, (void *) dst); + num = thunk_pread(mem_fh, blob, PAGE_SIZE, src); + if (num != PAGE_SIZE) + panic("%s: can't read in src\n", __func__); + num = thunk_pwrite(mem_fh, blob, PAGE_SIZE, dst); + if (num != PAGE_SIZE) + panic("%s: couldn't write out dst\n", __func__); } /* change access permissions on a given physical page */