From e7b3789524eecc96213dd69d6686efd429235051 Mon Sep 17 00:00:00 2001 From: Yinghai Lu Date: Wed, 25 Jun 2008 21:51:28 -0700 Subject: [PATCH] x86: move fix mapping page table range early do that in init_memory_mapping also remove one init_ohci1394_dma_on_all_controllers Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- arch/x86/kernel/setup.c | 23 +++++++++-------------- arch/x86/mm/init_32.c | 15 +++++++++++---- 2 files changed, 20 insertions(+), 18 deletions(-) diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index 161609c6925..bf528b23750 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -611,11 +611,6 @@ void __init setup_arch(char **cmdline_p) #ifdef CONFIG_X86_32 probe_roms(); -#else -# ifdef CONFIG_PROVIDE_OHCI1394_DMA_INIT - if (init_ohci1394_dma_early) - init_ohci1394_dma_on_all_controllers(); -# endif #endif /* after parse_early_param, so could debug it */ @@ -672,6 +667,15 @@ void __init setup_arch(char **cmdline_p) /* max_pfn_mapped is updated here */ max_pfn_mapped = init_memory_mapping(0, (max_low_pfn << PAGE_SHIFT)); + /* + * NOTE: On x86-32, only from this point on, fixmaps are ready for use. + */ + +#ifdef CONFIG_PROVIDE_OHCI1394_DMA_INIT + if (init_ohci1394_dma_early) + init_ohci1394_dma_on_all_controllers(); +#endif + reserve_initrd(); #ifdef CONFIG_X86_64 @@ -739,15 +743,6 @@ void __init setup_arch(char **cmdline_p) map_vsyscall(); #endif - /* - * NOTE: On x86-32, only from this point on, fixmaps are ready for use. - */ - -#if defined(CONFIG_PROVIDE_OHCI1394_DMA_INIT) && defined(CONFIG_X86_32) - if (init_ohci1394_dma_early) - init_ohci1394_dma_on_all_controllers(); -#endif - #ifdef CONFIG_X86_GENERICARCH generic_apic_probe(); #endif diff --git a/arch/x86/mm/init_32.c b/arch/x86/mm/init_32.c index 156000de6e6..b9cf7f70530 100644 --- a/arch/x86/mm/init_32.c +++ b/arch/x86/mm/init_32.c @@ -442,13 +442,10 @@ void __init native_pagetable_setup_done(pgd_t *base) * be partially populated, and so it avoids stomping on any existing * mappings. */ -static void __init pagetable_init(void) +static void __init early_ioremap_page_table_range_init(pgd_t *pgd_base) { - pgd_t *pgd_base = swapper_pg_dir; unsigned long vaddr, end; - paravirt_pagetable_setup_start(pgd_base); - /* * Fixed mappings, only the page table structure has to be * created - mappings will be set by set_fixmap(): @@ -458,6 +455,13 @@ static void __init pagetable_init(void) end = (FIXADDR_TOP + PMD_SIZE - 1) & PMD_MASK; page_table_range_init(vaddr, end, pgd_base); early_ioremap_reset(); +} + +static void __init pagetable_init(void) +{ + pgd_t *pgd_base = swapper_pg_dir; + + paravirt_pagetable_setup_start(pgd_base); permanent_kmaps_init(pgd_base); @@ -788,6 +792,8 @@ unsigned long __init_refok init_memory_mapping(unsigned long start, kernel_physical_mapping_init(pgd_base, start, end); + early_ioremap_page_table_range_init(pgd_base); + load_cr3(swapper_pg_dir); __flush_tlb_all(); @@ -799,6 +805,7 @@ unsigned long __init_refok init_memory_mapping(unsigned long start, return end >> PAGE_SHIFT; } + /* * paging_init() sets up the page tables - note that the first 8MB are * already mapped by head.S. -- 2.41.1