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| author | Pekka Enberg <penberg@cs.helsinki.fi> | 2009-04-28 15:00:49 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-04-30 10:12:36 +0200 |
| commit | 2b72394e4089643f11669d9610907a1442fe044a (patch) | |
| tree | 406aba50f5cf070f77e4bc4eb84329e45454b1ca /arch/x86/kernel | |
| parent | x86: unify noexec handling (diff) | |
| download | linux-2b72394e4089643f11669d9610907a1442fe044a.tar.xz linux-2b72394e4089643f11669d9610907a1442fe044a.zip | |
x86: move max_pfn_mapped and max_low_pfn_mapped to setup.c
This patch moves the max_pfn_mapped and max_low_pfn_mapped global
variables to kernel/setup.c where they're initialized.
[ Impact: cleanup ]
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
LKML-Reference: <1240923649.1982.21.camel@penberg-laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/setup.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index b4158439bf63..0d77e56e821b 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -112,6 +112,14 @@ #define ARCH_SETUP #endif +/* + * end_pfn only includes RAM, while max_pfn_mapped includes all e820 entries. + * The direct mapping extends to max_pfn_mapped, so that we can directly access + * apertures, ACPI and other tables without having to play with fixmaps. + */ +unsigned long max_low_pfn_mapped; +unsigned long max_pfn_mapped; + RESERVE_BRK(dmi_alloc, 65536); unsigned int boot_cpu_id __read_mostly; |