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[ARM] cputype: separate definitions, use them

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Add asm/cputype.h, moving functions and definitions from asm/system.h
there.  Convert all users of 'processor_id' to the more efficient
read_cpuid_id() function.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King
2008-08-10 18:08:10 +01:00
committed by Russell King
parent b8e6c91c74
commit 0ba8b9b273
18 changed files with 131 additions and 114 deletions
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45
arch/arm/kernel/setup.c
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@@ -26,6 +26,7 @@
#include <linux/fs.h>
#include <asm/cpu.h>
#include <asm/cputype.h>
#include <asm/elf.h>
#include <asm/procinfo.h>
#include <asm/setup.h>
@@ -280,9 +281,9 @@ 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)) {
@@ -301,15 +302,15 @@ 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
@@ -346,10 +347,10 @@ 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);
}
@@ -369,7 +370,7 @@ 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);
@@ -922,7 +923,7 @@ 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) {
@@ -949,30 +950,30 @@ 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"