diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/i386/kernel/dmi_scan.c | 1 | ||||
| -rw-r--r-- | arch/x86_64/kernel/setup.c | 16 | ||||
| -rw-r--r-- | arch/x86_64/mm/init.c | 27 |
3 files changed, 37 insertions, 7 deletions
diff --git a/arch/i386/kernel/dmi_scan.c b/arch/i386/kernel/dmi_scan.c index d2dfd9c8d69..ebc8dc116c4 100644 --- a/arch/i386/kernel/dmi_scan.c +++ b/arch/i386/kernel/dmi_scan.c @@ -5,6 +5,7 @@ #include <linux/dmi.h> #include <linux/bootmem.h> #include <linux/slab.h> +#include <asm/dmi.h> static char * __init dmi_string(struct dmi_header *dm, u8 s) { diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c index 49f285871df..8acf5313e83 100644 --- a/arch/x86_64/kernel/setup.c +++ b/arch/x86_64/kernel/setup.c @@ -68,6 +68,7 @@ #include <asm/swiotlb.h> #include <asm/sections.h> #include <asm/gart-mapping.h> +#include <asm/dmi.h> /* * Machine setup.. @@ -92,6 +93,12 @@ int bootloader_type; unsigned long saved_video_mode; +/* + * Early DMI memory + */ +int dmi_alloc_index; +char dmi_alloc_data[DMI_MAX_DATA]; + /* * Setup options */ @@ -620,6 +627,8 @@ void __init setup_arch(char **cmdline_p) init_memory_mapping(0, (end_pfn_map << PAGE_SHIFT)); + dmi_scan_machine(); + zap_low_mappings(0); #ifdef CONFIG_ACPI @@ -1412,10 +1421,3 @@ struct seq_operations cpuinfo_op = { .show = show_cpuinfo, }; -static int __init run_dmi_scan(void) -{ - dmi_scan_machine(); - return 0; -} -core_initcall(run_dmi_scan); - diff --git a/arch/x86_64/mm/init.c b/arch/x86_64/mm/init.c index 675a4569133..54c7f5975b4 100644 --- a/arch/x86_64/mm/init.c +++ b/arch/x86_64/mm/init.c @@ -225,6 +225,33 @@ static __meminit void unmap_low_page(int i) ti->allocated = 0; } +/* Must run before zap_low_mappings */ +__init void *early_ioremap(unsigned long addr, unsigned long size) +{ + unsigned long map = round_down(addr, LARGE_PAGE_SIZE); + + /* actually usually some more */ + if (size >= LARGE_PAGE_SIZE) { + printk("SMBIOS area too long %lu\n", size); + return NULL; + } + set_pmd(temp_mappings[0].pmd, __pmd(map | _KERNPG_TABLE | _PAGE_PSE)); + map += LARGE_PAGE_SIZE; + set_pmd(temp_mappings[1].pmd, __pmd(map | _KERNPG_TABLE | _PAGE_PSE)); + __flush_tlb(); + return temp_mappings[0].address + (addr & (LARGE_PAGE_SIZE-1)); +} + +/* To avoid virtual aliases later */ +__init void early_iounmap(void *addr, unsigned long size) +{ + if ((void *)round_down((unsigned long)addr, LARGE_PAGE_SIZE) != temp_mappings[0].address) + printk("early_iounmap: bad address %p\n", addr); + set_pmd(temp_mappings[0].pmd, __pmd(0)); + set_pmd(temp_mappings[1].pmd, __pmd(0)); + __flush_tlb(); +} + static void __meminit phys_pmd_init(pmd_t *pmd, unsigned long address, unsigned long end) { |