X-Git-Url: http://ftp.safe.ca/?a=blobdiff_plain;f=arch%2Farm%2Fkernel%2Fsetup.c;h=122d999bdc7ca0c8f690355a101f59f1ea8152f8;hb=92d2040d78f662f634efce7a5106bbed70b8708b;hp=b7cd280bfd638585f6caec72c30d829774546d75;hpb=0f44ba1d1e67201c0c58af26eb441fa7014c89ec;p=safe%2Fjmp%2Flinux-2.6 diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index b7cd280..122d999 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -7,7 +7,6 @@ * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ -#include #include #include #include @@ -18,26 +17,36 @@ #include #include #include -#include +#include #include #include #include #include #include +#include +#include +#include #include +#include #include #include +#include #include #include #include +#include #include #include #include #include +#include +#include #include "compat.h" +#include "atags.h" +#include "tcm.h" #ifndef MEM_SIZE #define MEM_SIZE (16*1024*1024) @@ -55,14 +64,17 @@ static int __init fpe_setup(char *line) __setup("fpe=", fpe_setup); #endif -extern void paging_init(struct meminfo *, struct machine_desc *desc); +extern void paging_init(struct machine_desc *desc); extern void reboot_setup(char *str); -extern int root_mountflags; -extern void _stext, _text, _etext, __data_start, _edata, _end; unsigned int processor_id; +EXPORT_SYMBOL(processor_id); unsigned int __machine_arch_type; EXPORT_SYMBOL(__machine_arch_type); +unsigned int cacheid; +EXPORT_SYMBOL(cacheid); + +unsigned int __atags_pointer __initdata; unsigned int system_rev; EXPORT_SYMBOL(system_rev); @@ -89,6 +101,10 @@ struct cpu_user_fns cpu_user; #ifdef MULTI_CACHE struct cpu_cache_fns cpu_cache; #endif +#ifdef CONFIG_OUTER_CACHE +struct outer_cache_fns outer_cache; +EXPORT_SYMBOL(outer_cache); +#endif struct stack { u32 irq[3]; @@ -101,13 +117,9 @@ 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; -static char command_line[COMMAND_LINE_SIZE]; +static char __initdata cmd_line[COMMAND_LINE_SIZE]; static char default_command_line[COMMAND_LINE_SIZE] __initdata = CONFIG_CMDLINE; static union { char c[4]; unsigned long l; } endian_test __initdata = { { 'l', '?', '?', 'b' } }; @@ -119,9 +131,24 @@ DEFINE_PER_CPU(struct cpuinfo_arm, cpu_data); * Standard memory resources */ static struct resource mem_res[] = { - { "Video RAM", 0, 0, IORESOURCE_MEM }, - { "Kernel text", 0, 0, IORESOURCE_MEM }, - { "Kernel data", 0, 0, IORESOURCE_MEM } + { + .name = "Video RAM", + .start = 0, + .end = 0, + .flags = IORESOURCE_MEM + }, + { + .name = "Kernel text", + .start = 0, + .end = 0, + .flags = IORESOURCE_MEM + }, + { + .name = "Kernel data", + .start = 0, + .end = 0, + .flags = IORESOURCE_MEM + } }; #define video_ram mem_res[0] @@ -129,72 +156,30 @@ static struct resource mem_res[] = { #define kernel_data mem_res[2] static struct resource io_res[] = { - { "reserved", 0x3bc, 0x3be, IORESOURCE_IO | IORESOURCE_BUSY }, - { "reserved", 0x378, 0x37f, IORESOURCE_IO | IORESOURCE_BUSY }, - { "reserved", 0x278, 0x27f, IORESOURCE_IO | IORESOURCE_BUSY } + { + .name = "reserved", + .start = 0x3bc, + .end = 0x3be, + .flags = IORESOURCE_IO | IORESOURCE_BUSY + }, + { + .name = "reserved", + .start = 0x378, + .end = 0x37f, + .flags = IORESOURCE_IO | IORESOURCE_BUSY + }, + { + .name = "reserved", + .start = 0x278, + .end = 0x27f, + .flags = IORESOURCE_IO | IORESOURCE_BUSY + } }; #define lp0 io_res[0] #define lp1 io_res[1] #define lp2 io_res[2] -static const char *cache_types[16] = { - "write-through", - "write-back", - "write-back", - "undefined 3", - "undefined 4", - "undefined 5", - "write-back", - "write-back", - "undefined 8", - "undefined 9", - "undefined 10", - "undefined 11", - "undefined 12", - "undefined 13", - "write-back", - "undefined 15", -}; - -static const char *cache_clean[16] = { - "not required", - "read-block", - "cp15 c7 ops", - "undefined 3", - "undefined 4", - "undefined 5", - "cp15 c7 ops", - "cp15 c7 ops", - "undefined 8", - "undefined 9", - "undefined 10", - "undefined 11", - "undefined 12", - "undefined 13", - "cp15 c7 ops", - "undefined 15", -}; - -static const char *cache_lockdown[16] = { - "not supported", - "not supported", - "not supported", - "undefined 3", - "undefined 4", - "undefined 5", - "format A", - "format B", - "undefined 8", - "undefined 9", - "undefined 10", - "undefined 11", - "undefined 12", - "undefined 13", - "format C", - "undefined 15", -}; - static const char *proc_arch[] = { "undefined/unknown", "3", @@ -215,63 +200,66 @@ static const char *proc_arch[] = { "?(17)", }; -#define CACHE_TYPE(x) (((x) >> 25) & 15) -#define CACHE_S(x) ((x) & (1 << 24)) -#define CACHE_DSIZE(x) (((x) >> 12) & 4095) /* only if S=1 */ -#define CACHE_ISIZE(x) ((x) & 4095) - -#define CACHE_SIZE(y) (((y) >> 6) & 7) -#define CACHE_ASSOC(y) (((y) >> 3) & 7) -#define CACHE_M(y) ((y) & (1 << 2)) -#define CACHE_LINE(y) ((y) & 3) - -static inline void dump_cache(const char *prefix, int cpu, unsigned int cache) -{ - unsigned int mult = 2 + (CACHE_M(cache) ? 1 : 0); - - printk("CPU%u: %s: %d bytes, associativity %d, %d byte lines, %d sets\n", - cpu, prefix, - mult << (8 + CACHE_SIZE(cache)), - (mult << CACHE_ASSOC(cache)) >> 1, - 8 << CACHE_LINE(cache), - 1 << (6 + CACHE_SIZE(cache) - CACHE_ASSOC(cache) - - CACHE_LINE(cache))); -} - -static void __init dump_cpu_info(int cpu) -{ - unsigned int info = read_cpuid(CPUID_CACHETYPE); - - if (info != processor_id) { - printk("CPU%u: D %s %s cache\n", cpu, cache_is_vivt() ? "VIVT" : "VIPT", - cache_types[CACHE_TYPE(info)]); - if (CACHE_S(info)) { - dump_cache("I cache", cpu, CACHE_ISIZE(info)); - dump_cache("D cache", cpu, CACHE_DSIZE(info)); - } else { - dump_cache("cache", cpu, CACHE_ISIZE(info)); - } - } -} - 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 ((read_cpuid_id() & 0x000f0000) == 0x000f0000) { + unsigned int mmfr0; + + /* Revised CPUID format. Read the Memory Model Feature + * Register 0 and check for VMSAv7 or PMSAv7 */ + asm("mrc p15, 0, %0, c0, c1, 4" + : "=r" (mmfr0)); + if ((mmfr0 & 0x0000000f) == 0x00000003 || + (mmfr0 & 0x000000f0) == 0x00000030) + cpu_arch = CPU_ARCH_ARMv7; + else if ((mmfr0 & 0x0000000f) == 0x00000002 || + (mmfr0 & 0x000000f0) == 0x00000020) + cpu_arch = CPU_ARCH_ARMv6; + else + cpu_arch = CPU_ARCH_UNKNOWN; + } else + cpu_arch = CPU_ARCH_UNKNOWN; + + return cpu_arch; +} + +static void __init cacheid_init(void) +{ + unsigned int cachetype = read_cpuid_cachetype(); + unsigned int arch = cpu_architecture(); + + if (arch >= CPU_ARCH_ARMv6) { + if ((cachetype & (7 << 29)) == 4 << 29) { + /* ARMv7 register format */ + cacheid = CACHEID_VIPT_NONALIASING; + if ((cachetype & (3 << 14)) == 1 << 14) + cacheid |= CACHEID_ASID_TAGGED; + } else if (cachetype & (1 << 23)) + cacheid = CACHEID_VIPT_ALIASING; + else + cacheid = CACHEID_VIPT_NONALIASING; } else { - /* the revised CPUID */ - cpu_arch = ((processor_id >> 12) & 0xf) - 0xb + CPU_ARCH_ARMv6; + cacheid = CACHEID_VIVT; } - return cpu_arch; + printk("CPU: %s data cache, %s instruction cache\n", + cache_is_vivt() ? "VIVT" : + cache_is_vipt_aliasing() ? "VIPT aliasing" : + cache_is_vipt_nonaliasing() ? "VIPT nonaliasing" : "unknown", + cache_is_vivt() ? "VIVT" : + icache_is_vivt_asid_tagged() ? "VIVT ASID tagged" : + cache_is_vipt_aliasing() ? "VIPT aliasing" : + cache_is_vipt_nonaliasing() ? "VIPT nonaliasing" : "unknown"); } /* @@ -290,10 +278,10 @@ 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); } @@ -312,22 +300,25 @@ static void __init setup_processor(void) cpu_cache = *list->cache; #endif - printk("CPU: %s [%08x] revision %d (ARMv%s)\n", - cpu_name, processor_id, (int)processor_id & 15, - proc_arch[cpu_architecture()]); + printk("CPU: %s [%08x] revision %d (ARMv%s), cr=%08lx\n", + cpu_name, read_cpuid_id(), read_cpuid_id() & 15, + proc_arch[cpu_architecture()], cr_alignment); - sprintf(system_utsname.machine, "%s%c", list->arch_name, ENDIANNESS); + sprintf(init_utsname()->machine, "%s%c", list->arch_name, ENDIANNESS); sprintf(elf_platform, "%s%c", list->elf_name, ENDIANNESS); elf_hwcap = list->elf_hwcap; +#ifndef CONFIG_ARM_THUMB + elf_hwcap &= ~HWCAP_THUMB; +#endif + cacheid_init(); cpu_proc_init(); } /* * cpu_init - initialise one CPU. * - * cpu_init dumps the cache information, initialises SMP specific - * information, and sets up the per-CPU stacks. + * cpu_init sets up the per-CPU stacks. */ void cpu_init(void) { @@ -339,29 +330,39 @@ void cpu_init(void) BUG(); } - if (system_state == SYSTEM_BOOTING) - dump_cpu_info(cpu); + /* + * Define the placement constraint for the inline asm directive below. + * In Thumb-2, msr with an immediate value is not allowed. + */ +#ifdef CONFIG_THUMB2_KERNEL +#define PLC "r" +#else +#define PLC "I" +#endif /* * setup stacks for re-entrant exception handlers */ __asm__ ( "msr cpsr_c, %1\n\t" - "add sp, %0, %2\n\t" + "add r14, %0, %2\n\t" + "mov sp, r14\n\t" "msr cpsr_c, %3\n\t" - "add sp, %0, %4\n\t" + "add r14, %0, %4\n\t" + "mov sp, r14\n\t" "msr cpsr_c, %5\n\t" - "add sp, %0, %6\n\t" + "add r14, %0, %6\n\t" + "mov sp, r14\n\t" "msr cpsr_c, %7" : : "r" (stk), - "I" (PSR_F_BIT | PSR_I_BIT | IRQ_MODE), + PLC (PSR_F_BIT | PSR_I_BIT | IRQ_MODE), "I" (offsetof(struct stack, irq[0])), - "I" (PSR_F_BIT | PSR_I_BIT | ABT_MODE), + PLC (PSR_F_BIT | PSR_I_BIT | ABT_MODE), "I" (offsetof(struct stack, abt[0])), - "I" (PSR_F_BIT | PSR_I_BIT | UND_MODE), + PLC (PSR_F_BIT | PSR_I_BIT | UND_MODE), "I" (offsetof(struct stack, und[0])), - "I" (PSR_F_BIT | PSR_I_BIT | SVC_MODE) + PLC (PSR_F_BIT | PSR_I_BIT | SVC_MODE) : "r14"); } @@ -384,42 +385,45 @@ static struct machine_desc * __init setup_machine(unsigned int nr) return list; } -static void __init early_initrd(char **p) +static int __init arm_add_memory(unsigned long start, unsigned long size) { - unsigned long start, size; - - start = memparse(*p, p); - if (**p == ',') { - size = memparse((*p) + 1, p); + struct membank *bank = &meminfo.bank[meminfo.nr_banks]; - phys_initrd_start = start; - phys_initrd_size = size; + if (meminfo.nr_banks >= NR_BANKS) { + printk(KERN_CRIT "NR_BANKS too low, " + "ignoring memory at %#lx\n", start); + return -EINVAL; } -} -__early_param("initrd=", early_initrd); -static void __init add_memory(unsigned long start, unsigned long size) -{ /* * Ensure that start/size are aligned to a page boundary. * Size is appropriately rounded down, start is rounded up. */ size -= start & ~PAGE_MASK; + bank->start = PAGE_ALIGN(start); + bank->size = size & PAGE_MASK; + bank->node = PHYS_TO_NID(start); + + /* + * Check whether this memory region has non-zero size or + * invalid node number. + */ + if (bank->size == 0 || bank->node >= MAX_NUMNODES) + return -EINVAL; - meminfo.bank[meminfo.nr_banks].start = PAGE_ALIGN(start); - meminfo.bank[meminfo.nr_banks].size = size & PAGE_MASK; - meminfo.bank[meminfo.nr_banks].node = PHYS_TO_NID(start); - meminfo.nr_banks += 1; + meminfo.nr_banks++; + return 0; } /* * Pick out the memory size. We look for mem=size@start, * where start and size are "size[KkMm]" */ -static void __init early_mem(char **p) +static int __init early_mem(char *p) { static int usermem __initdata = 0; unsigned long size, start; + char *endp; /* * If the user specifies memory size, we @@ -432,52 +436,15 @@ static void __init early_mem(char **p) } start = PHYS_OFFSET; - size = memparse(*p, p); - if (**p == '@') - start = memparse(*p + 1, p); + size = memparse(p, &endp); + if (*endp == '@') + start = memparse(endp + 1, NULL); - add_memory(start, size); -} -__early_param("mem=", early_mem); + arm_add_memory(start, size); -/* - * Initial parsing of the command line. - */ -static void __init parse_cmdline(char **cmdline_p, char *from) -{ - char c = ' ', *to = command_line; - int len = 0; - - for (;;) { - if (c == ' ') { - extern struct early_params __early_begin, __early_end; - struct early_params *p; - - for (p = &__early_begin; p < &__early_end; p++) { - int len = strlen(p->arg); - - if (memcmp(from, p->arg, len) == 0) { - if (to != command_line) - to -= 1; - from += len; - p->fn(&from); - - while (*from != ' ' && *from != '\0') - from++; - break; - } - } - } - c = *from++; - if (!c) - break; - if (COMMAND_LINE_SIZE <= ++len) - break; - *to++ = c; - } - *to = '\0'; - *cmdline_p = command_line; + return 0; } +early_param("mem", early_mem); static void __init setup_ramdisk(int doload, int prompt, int image_start, unsigned int rd_sz) @@ -500,24 +467,19 @@ request_standard_resources(struct meminfo *mi, struct machine_desc *mdesc) struct resource *res; int i; - kernel_code.start = virt_to_phys(&_text); - kernel_code.end = virt_to_phys(&_etext - 1); - kernel_data.start = virt_to_phys(&__data_start); - kernel_data.end = virt_to_phys(&_end - 1); + kernel_code.start = virt_to_phys(_text); + kernel_code.end = virt_to_phys(_etext - 1); + kernel_data.start = virt_to_phys(_data); + kernel_data.end = virt_to_phys(_end - 1); for (i = 0; i < mi->nr_banks; i++) { - unsigned long virt_start, virt_end; - if (mi->bank[i].size == 0) continue; - virt_start = __phys_to_virt(mi->bank[i].start); - virt_end = virt_start + mi->bank[i].size - 1; - res = alloc_bootmem_low(sizeof(*res)); res->name = "System RAM"; - res->start = __virt_to_phys(virt_start); - res->end = __virt_to_phys(virt_end); + res->start = mi->bank[i].start; + res->end = mi->bank[i].start + mi->bank[i].size - 1; res->flags = IORESOURCE_MEM | IORESOURCE_BUSY; request_resource(&iomem_resource, res); @@ -572,14 +534,7 @@ __tagtable(ATAG_CORE, parse_tag_core); static int __init parse_tag_mem32(const struct tag *tag) { - if (meminfo.nr_banks >= NR_BANKS) { - printk(KERN_WARNING - "Ignoring memory bank 0x%08x size %dKB\n", - tag->u.mem.start, tag->u.mem.size / 1024); - return -EINVAL; - } - add_memory(tag->u.mem.start, tag->u.mem.size); - return 0; + return arm_add_memory(tag->u.mem.start, tag->u.mem.size); } __tagtable(ATAG_MEM, parse_tag_mem32); @@ -621,26 +576,6 @@ 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; @@ -658,6 +593,7 @@ static int __init parse_tag_revision(const struct tag *tag) __tagtable(ATAG_REVISION, parse_tag_revision); +#ifndef CONFIG_CMDLINE_FORCE static int __init parse_tag_cmdline(const struct tag *tag) { strlcpy(default_command_line, tag->u.cmdline.cmdline, COMMAND_LINE_SIZE); @@ -665,6 +601,7 @@ static int __init parse_tag_cmdline(const struct tag *tag) } __tagtable(ATAG_CMDLINE, parse_tag_cmdline); +#endif /* CONFIG_CMDLINE_FORCE */ /* * Scan the tag table for this tag, and call its parse function. @@ -732,6 +669,8 @@ void __init setup_arch(char **cmdline_p) struct machine_desc *mdesc; char *from = default_command_line; + unwind_init(); + setup_processor(); mdesc = setup_machine(machine_arch_type); machine_name = mdesc->name; @@ -739,7 +678,9 @@ void __init setup_arch(char **cmdline_p) if (mdesc->soft_reboot) reboot_setup("s"); - if (mdesc->boot_params) + if (__atags_pointer) + tags = phys_to_virt(__atags_pointer); + else if (mdesc->boot_params) tags = phys_to_virt(mdesc->boot_params); /* @@ -757,18 +698,25 @@ void __init setup_arch(char **cmdline_p) if (tags->hdr.tag == ATAG_CORE) { if (meminfo.nr_banks != 0) squash_mem_tags(tags); + save_atags(tags); parse_tags(tags); } - init_mm.start_code = (unsigned long) &_text; - init_mm.end_code = (unsigned long) &_etext; - init_mm.end_data = (unsigned long) &_edata; - init_mm.brk = (unsigned long) &_end; + init_mm.start_code = (unsigned long) _text; + init_mm.end_code = (unsigned long) _etext; + init_mm.end_data = (unsigned long) _edata; + init_mm.brk = (unsigned long) _end; + + /* parse_early_param needs a boot_command_line */ + strlcpy(boot_command_line, from, COMMAND_LINE_SIZE); - memcpy(saved_command_line, from, COMMAND_LINE_SIZE); - saved_command_line[COMMAND_LINE_SIZE-1] = '\0'; - parse_cmdline(cmdline_p, from); - paging_init(&meminfo, mdesc); + /* populate cmd_line too for later use, preserving boot_command_line */ + strlcpy(cmd_line, boot_command_line, COMMAND_LINE_SIZE); + *cmdline_p = cmd_line; + + parse_early_param(); + + paging_init(mdesc); request_standard_resources(&meminfo, mdesc); #ifdef CONFIG_SMP @@ -776,6 +724,7 @@ void __init setup_arch(char **cmdline_p) #endif cpu_init(); + tcm_init(); /* * Set up various architecture-specific pointers @@ -791,6 +740,7 @@ void __init setup_arch(char **cmdline_p) conswitchp = &dummy_con; #endif #endif + early_trap_init(); } @@ -798,14 +748,29 @@ static int __init topology_init(void) { int cpu; - for_each_cpu(cpu) - register_cpu(&per_cpu(cpu_data, cpu).cpu, cpu, NULL); + for_each_possible_cpu(cpu) { + struct cpuinfo_arm *cpuinfo = &per_cpu(cpu_data, cpu); + cpuinfo->cpu.hotpluggable = 1; + register_cpu(&cpuinfo->cpu, cpu); + } return 0; } - subsys_initcall(topology_init); +#ifdef CONFIG_HAVE_PROC_CPU +static int __init proc_cpu_init(void) +{ + struct proc_dir_entry *res; + + res = proc_mkdir("cpu", NULL); + if (!res) + return -ENOMEM; + return 0; +} +fs_initcall(proc_cpu_init); +#endif + static const char *hwcap_str[] = { "swp", "half", @@ -816,31 +781,21 @@ static const char *hwcap_str[] = { "vfp", "edsp", "java", + "iwmmxt", + "crunch", + "thumbee", + "neon", + "vfpv3", + "vfpv3d16", NULL }; -static void -c_show_cache(struct seq_file *m, const char *type, unsigned int cache) -{ - unsigned int mult = 2 + (CACHE_M(cache) ? 1 : 0); - - seq_printf(m, "%s size\t\t: %d\n" - "%s assoc\t\t: %d\n" - "%s line length\t: %d\n" - "%s sets\t\t: %d\n", - type, mult << (8 + CACHE_SIZE(cache)), - type, (mult << CACHE_ASSOC(cache)) >> 1, - type, 8 << CACHE_LINE(cache), - type, 1 << (6 + CACHE_SIZE(cache) - CACHE_ASSOC(cache) - - CACHE_LINE(cache))); -} - 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) { @@ -867,47 +822,26 @@ 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\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); - } - seq_printf(m, "CPU revision\t: %d\n", processor_id & 15); - - { - unsigned int cache_info = read_cpuid(CPUID_CACHETYPE); - if (cache_info != processor_id) { - seq_printf(m, "Cache type\t: %s\n" - "Cache clean\t: %s\n" - "Cache lockdown\t: %s\n" - "Cache format\t: %s\n", - cache_types[CACHE_TYPE(cache_info)], - cache_clean[CACHE_TYPE(cache_info)], - cache_lockdown[CACHE_TYPE(cache_info)], - CACHE_S(cache_info) ? "Harvard" : "Unified"); - - if (CACHE_S(cache_info)) { - c_show_cache(m, "I", CACHE_ISIZE(cache_info)); - c_show_cache(m, "D", CACHE_DSIZE(cache_info)); - } else { - c_show_cache(m, "Cache", CACHE_ISIZE(cache_info)); - } - } + (read_cpuid_id() >> 4) & 0xfff); } + seq_printf(m, "CPU revision\t: %d\n", read_cpuid_id() & 15); seq_puts(m, "\n"); @@ -934,7 +868,7 @@ static void c_stop(struct seq_file *m, void *v) { } -struct seq_operations cpuinfo_op = { +const struct seq_operations cpuinfo_op = { .start = c_start, .next = c_next, .stop = c_stop,