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x86: merge setup_memory_map with e820

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... and kill e820_32/64.c and e820_32/64.h

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Yinghai Lu
2008-06-16 19:58:28 -07:00
committed by Ingo Molnar
parent cc9f7a0ccf
commit 064d25f120
11 changed files with 92 additions and 234 deletions
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12
arch/x86/mm/init_64.c
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@ -47,6 +47,18 @@
#include <asm/numa.h>
#include <asm/cacheflush.h>
/*
* PFN of last memory page.
*/
unsigned long end_pfn;
/*
* 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_pfn_mapped;
static unsigned long dma_reserve __initdata;
DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);