* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
-#include <linux/config.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/stddef.h>
#include <linux/console.h>
#include <linux/bootmem.h>
#include <linux/seq_file.h>
-#include <linux/tty.h>
+#include <linux/screen_info.h>
#include <linux/init.h>
#include <linux/root_dev.h>
#include <linux/cpu.h>
#include <linux/interrupt.h>
#include <linux/smp.h>
+#include <linux/fs.h>
#include <asm/cpu.h>
+#include <asm/cputype.h>
#include <asm/elf.h>
#include <asm/procinfo.h>
#include <asm/setup.h>
#include <asm/mach-types.h>
#include <asm/cacheflush.h>
+#include <asm/cachetype.h>
#include <asm/tlbflush.h>
#include <asm/mach/arch.h>
#include <asm/mach/irq.h>
#include <asm/mach/time.h>
+#include <asm/traps.h>
#include "compat.h"
+#include "atags.h"
#ifndef MEM_SIZE
#define MEM_SIZE (16*1024*1024)
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 __atags_pointer __initdata;
+
unsigned int system_rev;
EXPORT_SYMBOL(system_rev);
unsigned int elf_hwcap;
EXPORT_SYMBOL(elf_hwcap);
+unsigned long __initdata vmalloc_reserve = 128 << 20;
+
#ifdef MULTI_CPU
struct processor processor;
#ifdef MULTI_CACHE
struct cpu_cache_fns cpu_cache;
#endif
+#ifdef CONFIG_OUTER_CACHE
+struct outer_cache_fns outer_cache;
+#endif
struct stack {
u32 irq[3];
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 command_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' } };
* 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]
#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]
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)) {
dump_cache("cache", cpu, CACHE_ISIZE(info));
}
}
+
+ if (arch_is_coherent())
+ printk("Cache coherency enabled\n");
}
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 {
- /* the revised CPUID */
- cpu_arch = ((processor_id >> 12) & 0xf) - 0xb + CPU_ARCH_ARMv6;
- }
+ } 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;
}
* These functions re-use the assembly code in head.S, which
* already provide the required functionality.
*/
-extern struct proc_info_list *lookup_processor_type(void);
+extern struct proc_info_list *lookup_processor_type(unsigned int);
extern struct machine_desc *lookup_machine_type(unsigned int);
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();
+ 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);
}
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
cpu_proc_init();
}
}
__early_param("initrd=", early_initrd);
-static void __init add_memory(unsigned long start, unsigned long size)
+static void __init arm_add_memory(unsigned long start, unsigned long size)
{
+ struct membank *bank;
+
/*
* Ensure that start/size are aligned to a page boundary.
* Size is appropriately rounded down, start is rounded up.
*/
size -= start & ~PAGE_MASK;
- 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;
+ bank = &meminfo.bank[meminfo.nr_banks++];
+
+ bank->start = PAGE_ALIGN(start);
+ bank->size = size & PAGE_MASK;
+ bank->node = PHYS_TO_NID(start);
}
/*
if (**p == '@')
start = memparse(*p + 1, p);
- add_memory(start, size);
+ arm_add_memory(start, size);
}
__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.
*/
static void __init parse_cmdline(char **cmdline_p, char *from)
tag->u.mem.start, tag->u.mem.size / 1024);
return -EINVAL;
}
- add_memory(tag->u.mem.start, tag->u.mem.size);
+ arm_add_memory(tag->u.mem.start, tag->u.mem.size);
return 0;
}
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);
/*
if (tags->hdr.tag == ATAG_CORE) {
if (meminfo.nr_banks != 0)
squash_mem_tags(tags);
+ save_atags(tags);
parse_tags(tags);
}
init_mm.end_data = (unsigned long) &_edata;
init_mm.brk = (unsigned long) &_end;
- memcpy(saved_command_line, from, COMMAND_LINE_SIZE);
- saved_command_line[COMMAND_LINE_SIZE-1] = '\0';
+ memcpy(boot_command_line, from, COMMAND_LINE_SIZE);
+ boot_command_line[COMMAND_LINE_SIZE-1] = '\0';
parse_cmdline(cmdline_p, from);
paging_init(&meminfo, mdesc);
request_standard_resources(&meminfo, mdesc);
conswitchp = &dummy_con;
#endif
#endif
+ early_trap_init();
}
{
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;
}
"vfp",
"edsp",
"java",
+ "iwmmxt",
+ "crunch",
NULL
};
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) {
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);
+ (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"
{
}
-struct seq_operations cpuinfo_op = {
+const struct seq_operations cpuinfo_op = {
.start = c_start,
.next = c_next,
.stop = c_stop,
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff