diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-22 20:37:50 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-10-22 20:37:50 -0700 |
| commit | 10f2a2b0f68abf39c06cf519cbc1740fa50f900b (patch) | |
| tree | 70b33e4437ae0d5ac92f56c60b048756bde7f3e4 /arch/x86/mm/init_32.c | |
| parent | 8814011679d1a47d8b0158fc991727a5859471a0 (diff) | |
| parent | b40827fa7268fda8a62490728a61c2856f33830b (diff) | |
Merge branch 'x86-trampoline-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-trampoline-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86-32, mm: Add an initial page table for core bootstrapping
Diffstat (limited to 'arch/x86/mm/init_32.c')
| -rw-r--r-- | arch/x86/mm/init_32.c | 45 |
1 files changed, 0 insertions, 45 deletions
diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c index 5d0a6711c28..0e969f9f401 100644 --- a/arch/x86/mm/init_32.c +++ b/arch/x86/mm/init_32.c @@ -528,48 +528,6 @@ static void __init pagetable_init(void) permanent_kmaps_init(pgd_base); } -#ifdef CONFIG_ACPI_SLEEP -/* - * ACPI suspend needs this for resume, because things like the intel-agp - * driver might have split up a kernel 4MB mapping. - */ -char swsusp_pg_dir[PAGE_SIZE] - __attribute__ ((aligned(PAGE_SIZE))); - -static inline void save_pg_dir(void) -{ - copy_page(swsusp_pg_dir, swapper_pg_dir); -} -#else /* !CONFIG_ACPI_SLEEP */ -static inline void save_pg_dir(void) -{ -} -#endif /* !CONFIG_ACPI_SLEEP */ - -void zap_low_mappings(bool early) -{ - int i; - - /* - * Zap initial low-memory mappings. - * - * Note that "pgd_clear()" doesn't do it for - * us, because pgd_clear() is a no-op on i386. - */ - for (i = 0; i < KERNEL_PGD_BOUNDARY; i++) { -#ifdef CONFIG_X86_PAE - set_pgd(swapper_pg_dir+i, __pgd(1 + __pa(empty_zero_page))); -#else - set_pgd(swapper_pg_dir+i, __pgd(0)); -#endif - } - - if (early) - __flush_tlb(); - else - flush_tlb_all(); -} - pteval_t __supported_pte_mask __read_mostly = ~(_PAGE_NX | _PAGE_GLOBAL | _PAGE_IOMAP); EXPORT_SYMBOL_GPL(__supported_pte_mask); @@ -882,9 +840,6 @@ void __init mem_init(void) if (boot_cpu_data.wp_works_ok < 0) test_wp_bit(); - - save_pg_dir(); - zap_low_mappings(true); } #ifdef CONFIG_MEMORY_HOTPLUG |