diff options
| author | Yinghai Lu <yhlu.kernel@gmail.com> | 2008-06-16 19:58:28 -0700 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-07-08 10:38:25 +0200 |
| commit | 064d25f12014ae1d97c2882f9ab874995321f2b2 (patch) | |
| tree | a6f39b226bbae5a2abc15d911cdf12d01b9c8c19 /arch/x86/mm/init_64.c | |
| parent | cc9f7a0ccf000d4db5fbdc7b0ae48eefea102f69 (diff) | |
x86: merge setup_memory_map with e820
... 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>
Diffstat (limited to 'arch/x86/mm/init_64.c')
| -rw-r--r-- | arch/x86/mm/init_64.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c index b8c2c1ef7ad..5266f3141d6 100644 --- a/arch/x86/mm/init_64.c +++ b/arch/x86/mm/init_64.c @@ -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); |