diff options
Diffstat (limited to 'arch/ia64/kernel/setup.c')
| -rw-r--r-- | arch/ia64/kernel/setup.c | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/arch/ia64/kernel/setup.c b/arch/ia64/kernel/setup.c index 5add0bcf87a..c0766575a3a 100644 --- a/arch/ia64/kernel/setup.c +++ b/arch/ia64/kernel/setup.c @@ -43,6 +43,7 @@ #include <linux/initrd.h> #include <linux/platform.h> #include <linux/pm.h> +#include <linux/cpufreq.h> #include <asm/ia32.h> #include <asm/machvec.h> @@ -59,6 +60,7 @@ #include <asm/smp.h> #include <asm/system.h> #include <asm/unistd.h> +#include <asm/system.h> #if defined(CONFIG_SMP) && (IA64_CPU_SIZE > PAGE_SIZE) # error "struct cpuinfo_ia64 too big!" @@ -517,6 +519,7 @@ show_cpuinfo (struct seq_file *m, void *v) char family[32], features[128], *cp, sep; struct cpuinfo_ia64 *c = v; unsigned long mask; + unsigned long proc_freq; int i; mask = c->features; @@ -549,6 +552,10 @@ show_cpuinfo (struct seq_file *m, void *v) sprintf(cp, " 0x%lx", mask); } + proc_freq = cpufreq_quick_get(cpunum); + if (!proc_freq) + proc_freq = c->proc_freq / 1000; + seq_printf(m, "processor : %d\n" "vendor : %s\n" @@ -565,7 +572,7 @@ show_cpuinfo (struct seq_file *m, void *v) "BogoMIPS : %lu.%02lu\n", cpunum, c->vendor, family, c->model, c->revision, c->archrev, features, c->ppn, c->number, - c->proc_freq / 1000000, c->proc_freq % 1000000, + proc_freq / 1000, proc_freq % 1000, c->itc_freq / 1000000, c->itc_freq % 1000000, lpj*HZ/500000, (lpj*HZ/5000) % 100); #ifdef CONFIG_SMP @@ -689,6 +696,7 @@ static void get_max_cacheline_size (void) { unsigned long line_size, max = 1; + unsigned int cache_size = 0; u64 l, levels, unique_caches; pal_cache_config_info_t cci; s64 status; @@ -718,6 +726,8 @@ get_max_cacheline_size (void) line_size = 1 << cci.pcci_line_size; if (line_size > max) max = line_size; + if (cache_size < cci.pcci_cache_size) + cache_size = cci.pcci_cache_size; if (!cci.pcci_unified) { status = ia64_pal_cache_config_info(l, /* cache_type (instruction)= */ 1, @@ -734,6 +744,9 @@ get_max_cacheline_size (void) ia64_i_cache_stride_shift = cci.pcci_stride; } out: +#ifdef CONFIG_SMP + max_cache_size = max(max_cache_size, cache_size); +#endif if (max > ia64_max_cacheline_size) ia64_max_cacheline_size = max; } @@ -788,7 +801,7 @@ cpu_init (void) #endif /* Clear the stack memory reserved for pt_regs: */ - memset(ia64_task_regs(current), 0, sizeof(struct pt_regs)); + memset(task_pt_regs(current), 0, sizeof(struct pt_regs)); ia64_set_kr(IA64_KR_FPU_OWNER, 0); @@ -864,6 +877,15 @@ cpu_init (void) pm_idle = default_idle; } +/* + * On SMP systems, when the scheduler does migration-cost autodetection, + * it needs a way to flush as much of the CPU's caches as possible. + */ +void sched_cacheflush(void) +{ + ia64_sal_cache_flush(3); +} + void check_bugs (void) { |