From 48fe4a76e27dc64b47f3d2a2af2b6bbf2b2f5b6b Mon Sep 17 00:00:00 2001 From: Jan Beulich Date: Fri, 18 Jul 2008 13:29:00 +0100 Subject: x86: i386: reduce boot fixmap space As 256 entries are needed, aligning to a 256-entry boundary is sufficient and still guarantees the single pte table requirement. Signed-off-by: Jan Beulich Signed-off-by: H. Peter Anvin --- include/asm-x86/fixmap_32.h | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) (limited to 'include') diff --git a/include/asm-x86/fixmap_32.h b/include/asm-x86/fixmap_32.h index aae2f0501a4..f1ac2b2167d 100644 --- a/include/asm-x86/fixmap_32.h +++ b/include/asm-x86/fixmap_32.h @@ -90,13 +90,13 @@ enum fixed_addresses { * 256 temporary boot-time mappings, used by early_ioremap(), * before ioremap() is functional. * - * We round it up to the next 512 pages boundary so that we + * We round it up to the next 256 pages boundary so that we * can have a single pgd entry and a single pte table: */ #define NR_FIX_BTMAPS 64 #define FIX_BTMAPS_NESTING 4 - FIX_BTMAP_END = __end_of_permanent_fixed_addresses + 512 - - (__end_of_permanent_fixed_addresses & 511), + FIX_BTMAP_END = __end_of_permanent_fixed_addresses + 256 - + (__end_of_permanent_fixed_addresses & 255), FIX_BTMAP_BEGIN = FIX_BTMAP_END + NR_FIX_BTMAPS*FIX_BTMAPS_NESTING - 1, FIX_WP_TEST, #ifdef CONFIG_ACPI -- cgit v1.2.3-70-g09d2