diff options
Diffstat (limited to 'arch/x86_64/kernel/setup.c')
| -rw-r--r-- | arch/x86_64/kernel/setup.c | 169 |
1 files changed, 17 insertions, 152 deletions
diff --git a/arch/x86_64/kernel/setup.c b/arch/x86_64/kernel/setup.c index 60477244d1a..3d98b696881 100644 --- a/arch/x86_64/kernel/setup.c +++ b/arch/x86_64/kernel/setup.c @@ -138,128 +138,6 @@ struct resource code_resource = { .flags = IORESOURCE_RAM, }; -#define IORESOURCE_ROM (IORESOURCE_BUSY | IORESOURCE_READONLY | IORESOURCE_MEM) - -static struct resource system_rom_resource = { - .name = "System ROM", - .start = 0xf0000, - .end = 0xfffff, - .flags = IORESOURCE_ROM, -}; - -static struct resource extension_rom_resource = { - .name = "Extension ROM", - .start = 0xe0000, - .end = 0xeffff, - .flags = IORESOURCE_ROM, -}; - -static struct resource adapter_rom_resources[] = { - { .name = "Adapter ROM", .start = 0xc8000, .end = 0, - .flags = IORESOURCE_ROM }, - { .name = "Adapter ROM", .start = 0, .end = 0, - .flags = IORESOURCE_ROM }, - { .name = "Adapter ROM", .start = 0, .end = 0, - .flags = IORESOURCE_ROM }, - { .name = "Adapter ROM", .start = 0, .end = 0, - .flags = IORESOURCE_ROM }, - { .name = "Adapter ROM", .start = 0, .end = 0, - .flags = IORESOURCE_ROM }, - { .name = "Adapter ROM", .start = 0, .end = 0, - .flags = IORESOURCE_ROM } -}; - -static struct resource video_rom_resource = { - .name = "Video ROM", - .start = 0xc0000, - .end = 0xc7fff, - .flags = IORESOURCE_ROM, -}; - -static struct resource video_ram_resource = { - .name = "Video RAM area", - .start = 0xa0000, - .end = 0xbffff, - .flags = IORESOURCE_RAM, -}; - -#define romsignature(x) (*(unsigned short *)(x) == 0xaa55) - -static int __init romchecksum(unsigned char *rom, unsigned long length) -{ - unsigned char *p, sum = 0; - - for (p = rom; p < rom + length; p++) - sum += *p; - return sum == 0; -} - -static void __init probe_roms(void) -{ - unsigned long start, length, upper; - unsigned char *rom; - int i; - - /* video rom */ - upper = adapter_rom_resources[0].start; - for (start = video_rom_resource.start; start < upper; start += 2048) { - rom = isa_bus_to_virt(start); - if (!romsignature(rom)) - continue; - - video_rom_resource.start = start; - - /* 0 < length <= 0x7f * 512, historically */ - length = rom[2] * 512; - - /* if checksum okay, trust length byte */ - if (length && romchecksum(rom, length)) - video_rom_resource.end = start + length - 1; - - request_resource(&iomem_resource, &video_rom_resource); - break; - } - - start = (video_rom_resource.end + 1 + 2047) & ~2047UL; - if (start < upper) - start = upper; - - /* system rom */ - request_resource(&iomem_resource, &system_rom_resource); - upper = system_rom_resource.start; - - /* check for extension rom (ignore length byte!) */ - rom = isa_bus_to_virt(extension_rom_resource.start); - if (romsignature(rom)) { - length = extension_rom_resource.end - extension_rom_resource.start + 1; - if (romchecksum(rom, length)) { - request_resource(&iomem_resource, &extension_rom_resource); - upper = extension_rom_resource.start; - } - } - - /* check for adapter roms on 2k boundaries */ - for (i = 0; i < ARRAY_SIZE(adapter_rom_resources) && start < upper; - start += 2048) { - rom = isa_bus_to_virt(start); - if (!romsignature(rom)) - continue; - - /* 0 < length <= 0x7f * 512, historically */ - length = rom[2] * 512; - - /* but accept any length that fits if checksum okay */ - if (!length || start + length > upper || !romchecksum(rom, length)) - continue; - - adapter_rom_resources[i].start = start; - adapter_rom_resources[i].end = start + length - 1; - request_resource(&iomem_resource, &adapter_rom_resources[i]); - - start = adapter_rom_resources[i++].end & ~2047UL; - } -} - #ifdef CONFIG_PROC_VMCORE /* elfcorehdr= specifies the location of elf core header * stored by the crashed kernel. This option will be passed @@ -444,6 +322,11 @@ void __init setup_arch(char **cmdline_p) /* reserve ebda region */ if (ebda_addr) reserve_bootmem_generic(ebda_addr, ebda_size); +#ifdef CONFIG_NUMA + /* reserve nodemap region */ + if (nodemap_addr) + reserve_bootmem_generic(nodemap_addr, nodemap_size); +#endif #ifdef CONFIG_SMP /* @@ -519,15 +402,11 @@ void __init setup_arch(char **cmdline_p) init_apic_mappings(); /* - * Request address space for all standard RAM and ROM resources - * and also for regions reported as reserved by the e820. - */ - probe_roms(); + * We trust e820 completely. No explicit ROM probing in memory. + */ e820_reserve_resources(); e820_mark_nosave_regions(); - request_resource(&iomem_resource, &video_ram_resource); - { unsigned i; /* request I/O space for devices used on all i[345]86 PCs */ @@ -1063,7 +942,8 @@ static int show_cpuinfo(struct seq_file *m, void *v) NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, "syscall", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, "nx", NULL, "mmxext", NULL, - NULL, "fxsr_opt", NULL, "rdtscp", NULL, "lm", "3dnowext", "3dnow", + NULL, "fxsr_opt", "pdpe1gb", "rdtscp", NULL, "lm", + "3dnowext", "3dnow", /* Transmeta-defined */ "recovery", "longrun", NULL, "lrti", NULL, NULL, NULL, NULL, @@ -1081,7 +961,7 @@ static int show_cpuinfo(struct seq_file *m, void *v) /* Intel-defined (#2) */ "pni", NULL, NULL, "monitor", "ds_cpl", "vmx", "smx", "est", "tm2", "ssse3", "cid", NULL, NULL, "cx16", "xtpr", NULL, - NULL, NULL, "dca", NULL, NULL, NULL, NULL, NULL, + NULL, NULL, "dca", NULL, NULL, NULL, NULL, "popcnt", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* VIA/Cyrix/Centaur-defined */ @@ -1091,8 +971,10 @@ static int show_cpuinfo(struct seq_file *m, void *v) NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, /* AMD-defined (#2) */ - "lahf_lm", "cmp_legacy", "svm", NULL, "cr8_legacy", NULL, NULL, NULL, - NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, + "lahf_lm", "cmp_legacy", "svm", "extapic", "cr8_legacy", + "altmovcr8", "abm", "sse4a", + "misalignsse", "3dnowprefetch", + "osvw", "ibs", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, }; @@ -1103,6 +985,9 @@ static int show_cpuinfo(struct seq_file *m, void *v) "ttp", /* thermal trip */ "tm", "stc", + "100mhzsteps", + "hwpstate", + NULL, /* tsc invariant mapped to constant_tsc */ NULL, /* nothing */ /* constant_tsc - moved to flags */ }; @@ -1219,23 +1104,3 @@ struct seq_operations cpuinfo_op = { .stop = c_stop, .show = show_cpuinfo, }; - -#if defined(CONFIG_INPUT_PCSPKR) || defined(CONFIG_INPUT_PCSPKR_MODULE) -#include <linux/platform_device.h> -static __init int add_pcspkr(void) -{ - struct platform_device *pd; - int ret; - - pd = platform_device_alloc("pcspkr", -1); - if (!pd) - return -ENOMEM; - - ret = platform_device_add(pd); - if (ret) - platform_device_put(pd); - - return ret; -} -device_initcall(add_pcspkr); -#endif |