summaryrefslogtreecommitdiffstats
path: root/arch/arm/kernel
diff options
context:
space:
mode:
Diffstat (limited to 'arch/arm/kernel')
-rw-r--r--arch/arm/kernel/setup.c142
1 files changed, 1 insertions, 141 deletions
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 61a2242b18b8..1939c904dae3 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -176,63 +176,6 @@ static struct resource io_res[] = {
#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",
@@ -253,48 +196,6 @@ 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_cachetype();
-
- 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("I cache", cpu, CACHE_ISIZE(info));
- dump_cache("D cache", cpu, CACHE_DSIZE(info));
- } else {
- dump_cache("cache", cpu, CACHE_ISIZE(info));
- }
- }
-
- if (arch_is_coherent())
- printk("Cache coherency enabled\n");
-}
-
int cpu_architecture(void)
{
int cpu_arch;
@@ -383,8 +284,7 @@ static void __init setup_processor(void)
/*
* 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)
{
@@ -396,9 +296,6 @@ void cpu_init(void)
BUG();
}
- if (system_state == SYSTEM_BOOTING)
- dump_cpu_info(cpu);
-
/*
* setup stacks for re-entrant exception handlers
*/
@@ -865,22 +762,6 @@ static const char *hwcap_str[] = {
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;
@@ -934,27 +815,6 @@ static int c_show(struct seq_file *m, void *v)
}
seq_printf(m, "CPU revision\t: %d\n", read_cpuid_id() & 15);
- {
- 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"
- "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));
- }
- }
- }
-
seq_puts(m, "\n");
seq_printf(m, "Hardware\t: %s\n", machine_name);