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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>
This commit is contained in:
Pekka Enberg 2009-04-28 16:00:49 +03:00 committed by Ingo Molnar
parent 89388913f2
commit 2b72394e40
3 changed files with 9 additions and 11 deletions
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8
arch/x86/kernel/setup.c
View File

@ -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;

4
arch/x86/mm/init_32.c
View File

@ -49,11 +49,9 @@
#include <asm/paravirt.h>
#include <asm/setup.h>
#include <asm/cacheflush.h>
#include <asm/page_types.h>
#include <asm/init.h>
unsigned long max_low_pfn_mapped;
unsigned long max_pfn_mapped;
DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
unsigned long highstart_pfn, highend_pfn;

8
arch/x86/mm/init_64.c
View File

@ -50,14 +50,6 @@
#include <asm/cacheflush.h>
#include <asm/init.h>
/*
* 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;
static unsigned long dma_reserve __initdata;
DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);