diff options
| author | Mark Kettenis <kettenis@cvs.openbsd.org> | 2009-05-30 20:47:01 +0000 |
|---|---|---|
| committer | Mark Kettenis <kettenis@cvs.openbsd.org> | 2009-05-30 20:47:01 +0000 |
| commit | 1c726ef63fd4be85dc4f48e37dc99420a2fa3722 (patch) | |
| tree | 159b77e4d75fc8b573bf78db8ff04301318fb490 /sys | |
| parent | 46fed973a86fb9ce5d506bcab702eb3bfbb729cf (diff) | |
Don't use biosbasemem and biosextmem to initialize iomem_ex, since on some
BIOSen it's a complete lie. Instead use the information from the memory
map like we do on i386.
ok weingart@, oga@
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/arch/amd64/amd64/machdep.c | 27 |
1 files changed, 13 insertions, 14 deletions
diff --git a/sys/arch/amd64/amd64/machdep.c b/sys/arch/amd64/amd64/machdep.c index 83087b3953b..7b16c679bce 100644 --- a/sys/arch/amd64/amd64/machdep.c +++ b/sys/arch/amd64/amd64/machdep.c @@ -1,4 +1,4 @@ -/* $OpenBSD: machdep.c,v 1.90 2009/04/30 01:16:56 dlg Exp $ */ +/* $OpenBSD: machdep.c,v 1.91 2009/05/30 20:47:00 kettenis Exp $ */ /* $NetBSD: machdep.c,v 1.3 2003/05/07 22:58:18 fvdl Exp $ */ /*- @@ -1171,6 +1171,7 @@ cpu_init_extents(void) { extern struct extent *iomem_ex; static int already_done; + int i; /* We get called for each CPU, only first should do this */ if (already_done) @@ -1178,20 +1179,16 @@ cpu_init_extents(void) /* * Allocate the physical addresses used by RAM from the iomem - * extent map. This is done before the addresses are - * page rounded just to make sure we get them all. + * extent map. */ - if (extent_alloc_region(iomem_ex, 0, KBTOB(biosbasemem), - EX_NOWAIT)) { - /* XXX What should we do? */ - printf("WARNING: CAN'T ALLOCATE BASE MEMORY FROM " - "IOMEM EXTENT MAP!\n"); - } - if (extent_alloc_region(iomem_ex, IOM_END, KBTOB(biosextmem), - EX_NOWAIT)) { - /* XXX What should we do? */ - printf("WARNING: CAN'T ALLOCATE EXTENDED MEMORY FROM " - "IOMEM EXTENT MAP!\n"); + for (i = 0; i < mem_cluster_cnt; i++) { + if (extent_alloc_region(iomem_ex, mem_clusters[i].start, + mem_clusters[i].size, EX_NOWAIT)) { + /* XXX What should we do? */ + printf("WARNING: CAN'T ALLOCATE RAM (%lx-%lx)" + " FROM IOMEM EXTENT MAP!\n", mem_clusters[i].start, + mem_clusters[i].start + mem_clusters[i].size - 1); + } } already_done = 1; @@ -1366,6 +1363,8 @@ init_x86_64(paddr_t first_avail) /* Nuke page zero */ if (s1 < avail_start) { s1 = avail_start; + if (s1 > e1) + continue; } /* Crop to fit below 4GB for now */ |