X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=arch%2Farm%2Fkernel%2Fsetup.c;h=61a2242b18b86a8bc6174bc06a1fdf2475957a53;hb=5ed5fdf50cbe8195522e2176d6356b357c0c963f;hp=b7b0720bc1bbe8295ea3ca7b2849e4a5ad875bf2;hpb=f9166e736e516a4b1de16577b5428afd0cffe325;p=linux-2.6-omap-h63xx.git diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index b7b0720bc1b..61a2242b18b 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -26,16 +26,19 @@ #include #include +#include #include #include #include #include #include +#include #include #include #include #include +#include #include "compat.h" #include "atags.h" @@ -58,8 +61,7 @@ __setup("fpe=", fpe_setup); extern void paging_init(struct meminfo *, struct machine_desc *desc); extern void reboot_setup(char *str); -extern int root_mountflags; -extern void _stext, _text, _etext, __data_start, _edata, _end; +extern void _text, _etext, __data_start, _edata, _end; unsigned int processor_id; EXPORT_SYMBOL(processor_id); @@ -80,6 +82,8 @@ EXPORT_SYMBOL(system_serial_high); unsigned int elf_hwcap; EXPORT_SYMBOL(elf_hwcap); +unsigned long __initdata vmalloc_reserve = 128 << 20; + #ifdef MULTI_CPU struct processor processor; @@ -108,9 +112,6 @@ static struct stack stacks[NR_CPUS]; char elf_platform[ELF_PLATFORM_SIZE]; EXPORT_SYMBOL(elf_platform); -unsigned long phys_initrd_start __initdata = 0; -unsigned long phys_initrd_size __initdata = 0; - static struct meminfo meminfo __initdata = { 0, }; static const char *cpu_name; static const char *machine_name; @@ -277,9 +278,9 @@ static inline void dump_cache(const char *prefix, int cpu, unsigned int cache) static void __init dump_cpu_info(int cpu) { - unsigned int info = read_cpuid(CPUID_CACHETYPE); + unsigned int info = read_cpuid_cachetype(); - if (info != processor_id) { + if (info != read_cpuid_id()) { printk("CPU%u: D %s %s cache\n", cpu, cache_is_vivt() ? "VIVT" : "VIPT", cache_types[CACHE_TYPE(info)]); if (CACHE_S(info)) { @@ -298,15 +299,15 @@ int cpu_architecture(void) { int cpu_arch; - if ((processor_id & 0x0008f000) == 0) { + if ((read_cpuid_id() & 0x0008f000) == 0) { cpu_arch = CPU_ARCH_UNKNOWN; - } else if ((processor_id & 0x0008f000) == 0x00007000) { - cpu_arch = (processor_id & (1 << 23)) ? CPU_ARCH_ARMv4T : CPU_ARCH_ARMv3; - } else if ((processor_id & 0x00080000) == 0x00000000) { - cpu_arch = (processor_id >> 16) & 7; + } else if ((read_cpuid_id() & 0x0008f000) == 0x00007000) { + cpu_arch = (read_cpuid_id() & (1 << 23)) ? CPU_ARCH_ARMv4T : CPU_ARCH_ARMv3; + } else if ((read_cpuid_id() & 0x00080000) == 0x00000000) { + cpu_arch = (read_cpuid_id() >> 16) & 7; if (cpu_arch) cpu_arch += CPU_ARCH_ARMv3; - } else if ((processor_id & 0x000f0000) == 0x000f0000) { + } else if ((read_cpuid_id() & 0x000f0000) == 0x000f0000) { unsigned int mmfr0; /* Revised CPUID format. Read the Memory Model Feature @@ -343,10 +344,10 @@ static void __init setup_processor(void) * types. The linker builds this table for us from the * entries in arch/arm/mm/proc-*.S */ - list = lookup_processor_type(processor_id); + list = lookup_processor_type(read_cpuid_id()); if (!list) { printk("CPU configuration botched (ID %08x), unable " - "to continue.\n", processor_id); + "to continue.\n", read_cpuid_id()); while (1); } @@ -366,7 +367,7 @@ static void __init setup_processor(void) #endif printk("CPU: %s [%08x] revision %d (ARMv%s), cr=%08lx\n", - cpu_name, processor_id, (int)processor_id & 15, + cpu_name, read_cpuid_id(), read_cpuid_id() & 15, proc_arch[cpu_architecture()], cr_alignment); sprintf(init_utsname()->machine, "%s%c", list->arch_name, ENDIANNESS); @@ -440,20 +441,6 @@ static struct machine_desc * __init setup_machine(unsigned int nr) return list; } -static void __init early_initrd(char **p) -{ - unsigned long start, size; - - start = memparse(*p, p); - if (**p == ',') { - size = memparse((*p) + 1, p); - - phys_initrd_start = start; - phys_initrd_size = size; - } -} -__early_param("initrd=", early_initrd); - static void __init arm_add_memory(unsigned long start, unsigned long size) { struct membank *bank; @@ -499,6 +486,17 @@ static void __init early_mem(char **p) } __early_param("mem=", early_mem); +/* + * vmalloc=size forces the vmalloc area to be exactly 'size' + * bytes. This can be used to increase (or decrease) the vmalloc + * area - the default is 128m. + */ +static void __init early_vmalloc(char **arg) +{ + vmalloc_reserve = memparse(*arg, arg); +} +__early_param("vmalloc=", early_vmalloc); + /* * Initial parsing of the command line. */ @@ -513,12 +511,12 @@ static void __init parse_cmdline(char **cmdline_p, char *from) struct early_params *p; for (p = &__early_begin; p < &__early_end; p++) { - int len = strlen(p->arg); + int arglen = strlen(p->arg); - if (memcmp(from, p->arg, len) == 0) { + if (memcmp(from, p->arg, arglen) == 0) { if (to != command_line) to -= 1; - from += len; + from += arglen; p->fn(&from); while (*from != ' ' && *from != '\0') @@ -680,26 +678,6 @@ static int __init parse_tag_ramdisk(const struct tag *tag) __tagtable(ATAG_RAMDISK, parse_tag_ramdisk); -static int __init parse_tag_initrd(const struct tag *tag) -{ - printk(KERN_WARNING "ATAG_INITRD is deprecated; " - "please update your bootloader.\n"); - phys_initrd_start = __virt_to_phys(tag->u.initrd.start); - phys_initrd_size = tag->u.initrd.size; - return 0; -} - -__tagtable(ATAG_INITRD, parse_tag_initrd); - -static int __init parse_tag_initrd2(const struct tag *tag) -{ - phys_initrd_start = tag->u.initrd.start; - phys_initrd_size = tag->u.initrd.size; - return 0; -} - -__tagtable(ATAG_INITRD2, parse_tag_initrd2); - static int __init parse_tag_serialnr(const struct tag *tag) { system_serial_low = tag->u.serialnr.low; @@ -853,6 +831,7 @@ void __init setup_arch(char **cmdline_p) conswitchp = &dummy_con; #endif #endif + early_trap_init(); } @@ -907,7 +886,7 @@ static int c_show(struct seq_file *m, void *v) int i; seq_printf(m, "Processor\t: %s rev %d (%s)\n", - cpu_name, (int)processor_id & 15, elf_platform); + cpu_name, read_cpuid_id() & 15, elf_platform); #if defined(CONFIG_SMP) for_each_online_cpu(i) { @@ -934,30 +913,30 @@ static int c_show(struct seq_file *m, void *v) if (elf_hwcap & (1 << i)) seq_printf(m, "%s ", hwcap_str[i]); - seq_printf(m, "\nCPU implementer\t: 0x%02x\n", processor_id >> 24); + seq_printf(m, "\nCPU implementer\t: 0x%02x\n", read_cpuid_id() >> 24); seq_printf(m, "CPU architecture: %s\n", proc_arch[cpu_architecture()]); - if ((processor_id & 0x0008f000) == 0x00000000) { + if ((read_cpuid_id() & 0x0008f000) == 0x00000000) { /* pre-ARM7 */ - seq_printf(m, "CPU part\t: %07x\n", processor_id >> 4); + seq_printf(m, "CPU part\t: %07x\n", read_cpuid_id() >> 4); } else { - if ((processor_id & 0x0008f000) == 0x00007000) { + if ((read_cpuid_id() & 0x0008f000) == 0x00007000) { /* ARM7 */ seq_printf(m, "CPU variant\t: 0x%02x\n", - (processor_id >> 16) & 127); + (read_cpuid_id() >> 16) & 127); } else { /* post-ARM7 */ seq_printf(m, "CPU variant\t: 0x%x\n", - (processor_id >> 20) & 15); + (read_cpuid_id() >> 20) & 15); } seq_printf(m, "CPU part\t: 0x%03x\n", - (processor_id >> 4) & 0xfff); + (read_cpuid_id() >> 4) & 0xfff); } - seq_printf(m, "CPU revision\t: %d\n", processor_id & 15); + seq_printf(m, "CPU revision\t: %d\n", read_cpuid_id() & 15); { - unsigned int cache_info = read_cpuid(CPUID_CACHETYPE); - if (cache_info != processor_id) { + unsigned int cache_info = read_cpuid_cachetype(); + if (cache_info != read_cpuid_id()) { seq_printf(m, "Cache type\t: %s\n" "Cache clean\t: %s\n" "Cache lockdown\t: %s\n"