diff options
Diffstat (limited to 'arch/parisc')
| -rw-r--r-- | arch/parisc/include/asm/processor.h | 4 | ||||
| -rw-r--r-- | arch/parisc/kernel/irq.c | 9 | ||||
| -rw-r--r-- | arch/parisc/kernel/perf.c | 4 | ||||
| -rw-r--r-- | arch/parisc/kernel/processor.c | 68 | ||||
| -rw-r--r-- | arch/parisc/kernel/setup.c | 6 | ||||
| -rw-r--r-- | arch/parisc/kernel/smp.c | 24 | ||||
| -rw-r--r-- | arch/parisc/kernel/time.c | 4 | ||||
| -rw-r--r-- | arch/parisc/kernel/topology.c | 4 |
8 files changed, 64 insertions, 59 deletions
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h index 3c9d348..9d64df8 100644 --- a/arch/parisc/include/asm/processor.h +++ b/arch/parisc/include/asm/processor.h @@ -17,6 +17,7 @@ #include <asm/ptrace.h> #include <asm/types.h> #include <asm/system.h> +#include <asm/percpu.h> #endif /* __ASSEMBLY__ */ #define KERNEL_STACK_SIZE (4*PAGE_SIZE) @@ -109,8 +110,7 @@ struct cpuinfo_parisc { }; extern struct system_cpuinfo_parisc boot_cpu_data; -extern struct cpuinfo_parisc cpu_data[NR_CPUS]; -#define current_cpu_data cpu_data[smp_processor_id()] +DECLARE_PER_CPU(struct cpuinfo_parisc, cpu_data); #define CPU_HVERSION ((boot_cpu_data.hversion >> 4) & 0x0FFF) diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c index 13fc4cd..ac2c822 100644 --- a/arch/parisc/kernel/irq.c +++ b/arch/parisc/kernel/irq.c @@ -298,7 +298,7 @@ unsigned long txn_affinity_addr(unsigned int irq, int cpu) irq_desc[irq].affinity = cpumask_of_cpu(cpu); #endif - return cpu_data[cpu].txn_addr; + return per_cpu(cpu_data, cpu).txn_addr; } @@ -309,8 +309,9 @@ unsigned long txn_alloc_addr(unsigned int virt_irq) next_cpu++; /* assign to "next" CPU we want this bugger on */ /* validate entry */ - while ((next_cpu < NR_CPUS) && (!cpu_data[next_cpu].txn_addr || - !cpu_online(next_cpu))) + while ((next_cpu < NR_CPUS) && + (!per_cpu(cpu_data, next_cpu).txn_addr || + !cpu_online(next_cpu))) next_cpu++; if (next_cpu >= NR_CPUS) @@ -359,7 +360,7 @@ void do_cpu_irq_mask(struct pt_regs *regs) printk(KERN_DEBUG "redirecting irq %d from CPU %d to %d\n", irq, smp_processor_id(), cpu); gsc_writel(irq + CPU_IRQ_BASE, - cpu_data[cpu].hpa); + per_cpu(cpu_data, cpu).hpa); goto set_out; } #endif diff --git a/arch/parisc/kernel/perf.c b/arch/parisc/kernel/perf.c index f696f57..75099ef 100644 --- a/arch/parisc/kernel/perf.c +++ b/arch/parisc/kernel/perf.c @@ -541,9 +541,9 @@ static int __init perf_init(void) spin_lock_init(&perf_lock); /* TODO: this only lets us access the first cpu.. what to do for SMP? */ - cpu_device = cpu_data[0].dev; + cpu_device = per_cpu(cpu_data, 0).dev; printk("Performance monitoring counters enabled for %s\n", - cpu_data[0].dev->name); + per_cpu(cpu_data, 0).dev->name); return 0; } diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c index 370086f..ecb6093 100644 --- a/arch/parisc/kernel/processor.c +++ b/arch/parisc/kernel/processor.c @@ -3,7 +3,7 @@ * Initial setup-routines for HP 9000 based hardware. * * Copyright (C) 1991, 1992, 1995 Linus Torvalds - * Modifications for PA-RISC (C) 1999 Helge Deller <deller@gmx.de> + * Modifications for PA-RISC (C) 1999-2008 Helge Deller <deller@gmx.de> * Modifications copyright 1999 SuSE GmbH (Philipp Rumpf) * Modifications copyright 2000 Martin K. Petersen <mkp@mkp.net> * Modifications copyright 2000 Philipp Rumpf <prumpf@tux.org> @@ -46,7 +46,7 @@ struct system_cpuinfo_parisc boot_cpu_data __read_mostly; EXPORT_SYMBOL(boot_cpu_data); -struct cpuinfo_parisc cpu_data[NR_CPUS] __read_mostly; +DEFINE_PER_CPU(struct cpuinfo_parisc, cpu_data); extern int update_cr16_clocksource(void); /* from time.c */ @@ -69,6 +69,23 @@ extern int update_cr16_clocksource(void); /* from time.c */ */ /** + * init_cpu_profiler - enable/setup per cpu profiling hooks. + * @cpunum: The processor instance. + * + * FIXME: doesn't do much yet... + */ +static void __cpuinit +init_percpu_prof(unsigned long cpunum) +{ + struct cpuinfo_parisc *p; + + p = &per_cpu(cpu_data, cpunum); + p->prof_counter = 1; + p->prof_multiplier = 1; +} + + +/** * processor_probe - Determine if processor driver should claim this device. * @dev: The device which has been found. * @@ -147,7 +164,7 @@ static int __cpuinit processor_probe(struct parisc_device *dev) } #endif - p = &cpu_data[cpuid]; + p = &per_cpu(cpu_data, cpuid); boot_cpu_data.cpu_count++; /* initialize counters - CPU 0 gets it_value set in time_init() */ @@ -162,12 +179,9 @@ static int __cpuinit processor_probe(struct parisc_device *dev) #ifdef CONFIG_SMP /* ** FIXME: review if any other initialization is clobbered - ** for boot_cpu by the above memset(). + ** for boot_cpu by the above memset(). */ - - /* stolen from init_percpu_prof() */ - cpu_data[cpuid].prof_counter = 1; - cpu_data[cpuid].prof_multiplier = 1; + init_percpu_prof(cpuid); #endif /* @@ -261,19 +275,6 @@ void __init collect_boot_cpu_data(void) } -/** - * init_cpu_profiler - enable/setup per cpu profiling hooks. - * @cpunum: The processor instance. - * - * FIXME: doesn't do much yet... - */ -static inline void __init -init_percpu_prof(int cpunum) -{ - cpu_data[cpunum].prof_counter = 1; - cpu_data[cpunum].prof_multiplier = 1; -} - /** * init_per_cpu - Handle individual processor initializations. @@ -293,7 +294,7 @@ init_percpu_prof(int cpunum) * * o Enable CPU profiling hooks. */ -int __init init_per_cpu(int cpunum) +int __cpuinit init_per_cpu(int cpunum) { int ret; struct pdc_coproc_cfg coproc_cfg; @@ -307,8 +308,8 @@ int __init init_per_cpu(int cpunum) /* FWIW, FP rev/model is a more accurate way to determine ** CPU type. CPU rev/model has some ambiguous cases. */ - cpu_data[cpunum].fp_rev = coproc_cfg.revision; - cpu_data[cpunum].fp_model = coproc_cfg.model; + per_cpu(cpu_data, cpunum).fp_rev = coproc_cfg.revision; + per_cpu(cpu_data, cpunum).fp_model = coproc_cfg.model; printk(KERN_INFO "FP[%d] enabled: Rev %ld Model %ld\n", cpunum, coproc_cfg.revision, coproc_cfg.model); @@ -344,16 +345,17 @@ int __init init_per_cpu(int cpunum) int show_cpuinfo (struct seq_file *m, void *v) { - int n; + unsigned long cpu; - for(n=0; n<boot_cpu_data.cpu_count; n++) { + for_each_online_cpu(cpu) { + const struct cpuinfo_parisc *cpuinfo = &per_cpu(cpu_data, cpu); #ifdef CONFIG_SMP - if (0 == cpu_data[n].hpa) + if (0 == cpuinfo->hpa) continue; #endif - seq_printf(m, "processor\t: %d\n" + seq_printf(m, "processor\t: %lu\n" "cpu family\t: PA-RISC %s\n", - n, boot_cpu_data.family_name); + cpu, boot_cpu_data.family_name); seq_printf(m, "cpu\t\t: %s\n", boot_cpu_data.cpu_name ); @@ -365,8 +367,8 @@ show_cpuinfo (struct seq_file *m, void *v) seq_printf(m, "model\t\t: %s\n" "model name\t: %s\n", boot_cpu_data.pdc.sys_model_name, - cpu_data[n].dev ? - cpu_data[n].dev->name : "Unknown" ); + cpuinfo->dev ? + cpuinfo->dev->name : "Unknown"); seq_printf(m, "hversion\t: 0x%08x\n" "sversion\t: 0x%08x\n", @@ -377,8 +379,8 @@ show_cpuinfo (struct seq_file *m, void *v) show_cache_info(m); seq_printf(m, "bogomips\t: %lu.%02lu\n", - cpu_data[n].loops_per_jiffy / (500000 / HZ), - (cpu_data[n].loops_per_jiffy / (5000 / HZ)) % 100); + cpuinfo->loops_per_jiffy / (500000 / HZ), + (cpuinfo->loops_per_jiffy / (5000 / HZ)) % 100); seq_printf(m, "software id\t: %ld\n\n", boot_cpu_data.pdc.model.sw_id); diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c index 8d8b024..82131ca 100644 --- a/arch/parisc/kernel/setup.c +++ b/arch/parisc/kernel/setup.c @@ -316,7 +316,7 @@ static int __init parisc_init(void) processor_init(); printk(KERN_INFO "CPU(s): %d x %s at %d.%06d MHz\n", - boot_cpu_data.cpu_count, + num_present_cpus(), boot_cpu_data.cpu_name, boot_cpu_data.cpu_hz / 1000000, boot_cpu_data.cpu_hz % 1000000 ); @@ -382,8 +382,8 @@ void start_parisc(void) if (ret >= 0 && coproc_cfg.ccr_functional) { mtctl(coproc_cfg.ccr_functional, 10); - cpu_data[cpunum].fp_rev = coproc_cfg.revision; - cpu_data[cpunum].fp_model = coproc_cfg.model; + per_cpu(cpu_data, cpunum).fp_rev = coproc_cfg.revision; + per_cpu(cpu_data, cpunum).fp_model = coproc_cfg.model; asm volatile ("fstd %fr0,8(%sp)"); } else { diff --git a/arch/parisc/kernel/smp.c b/arch/parisc/kernel/smp.c index 70a5e0d..9995d7e 100644 --- a/arch/parisc/kernel/smp.c +++ b/arch/parisc/kernel/smp.c @@ -56,16 +56,17 @@ static int smp_debug_lvl = 0; if (lvl >= smp_debug_lvl) \ printk(printargs); #else -#define smp_debug(lvl, ...) +#define smp_debug(lvl, ...) do { } while(0) #endif /* DEBUG_SMP */ DEFINE_SPINLOCK(smp_lock); volatile struct task_struct *smp_init_current_idle_task; -static volatile int cpu_now_booting __read_mostly = 0; /* track which CPU is booting */ +/* track which CPU is booting */ +static volatile int cpu_now_booting __cpuinitdata; -static int parisc_max_cpus __read_mostly = 1; +static int parisc_max_cpus __cpuinitdata = 1; DEFINE_PER_CPU(spinlock_t, ipi_lock) = SPIN_LOCK_UNLOCKED; @@ -123,7 +124,7 @@ irqreturn_t ipi_interrupt(int irq, void *dev_id) { int this_cpu = smp_processor_id(); - struct cpuinfo_parisc *p = &cpu_data[this_cpu]; + struct cpuinfo_parisc *p = &per_cpu(cpu_data, this_cpu); unsigned long ops; unsigned long flags; @@ -202,13 +203,13 @@ ipi_interrupt(int irq, void *dev_id) static inline void ipi_send(int cpu, enum ipi_message_type op) { - struct cpuinfo_parisc *p = &cpu_data[cpu]; + struct cpuinfo_parisc *p = &per_cpu(cpu_data, cpu); spinlock_t *lock = &per_cpu(ipi_lock, cpu); unsigned long flags; spin_lock_irqsave(lock, flags); p->pending_ipi |= 1 << op; - gsc_writel(IPI_IRQ - CPU_IRQ_BASE, cpu_data[cpu].hpa); + gsc_writel(IPI_IRQ - CPU_IRQ_BASE, p->hpa); spin_unlock_irqrestore(lock, flags); } @@ -341,6 +342,7 @@ void __init smp_callin(void) */ int __cpuinit smp_boot_one_cpu(int cpuid) { + const struct cpuinfo_parisc *p = &per_cpu(cpu_data, cpuid); struct task_struct *idle; long timeout; @@ -372,7 +374,7 @@ int __cpuinit smp_boot_one_cpu(int cpuid) smp_init_current_idle_task = idle ; mb(); - printk("Releasing cpu %d now, hpa=%lx\n", cpuid, cpu_data[cpuid].hpa); + printk(KERN_INFO "Releasing cpu %d now, hpa=%lx\n", cpuid, p->hpa); /* ** This gets PDC to release the CPU from a very tight loop. @@ -383,7 +385,7 @@ int __cpuinit smp_boot_one_cpu(int cpuid) ** EIR{0}). MEM_RENDEZ is valid only when it is nonzero and the ** contents of memory are valid." */ - gsc_writel(TIMER_IRQ - CPU_IRQ_BASE, cpu_data[cpuid].hpa); + gsc_writel(TIMER_IRQ - CPU_IRQ_BASE, p->hpa); mb(); /* @@ -415,12 +417,12 @@ alive: return 0; } -void __devinit smp_prepare_boot_cpu(void) +void __init smp_prepare_boot_cpu(void) { - int bootstrap_processor=cpu_data[0].cpuid; /* CPU ID of BSP */ + int bootstrap_processor = per_cpu(cpu_data, 0).cpuid; /* Setup BSP mappings */ - printk("SMP: bootstrap CPU ID is %d\n",bootstrap_processor); + printk(KERN_INFO "SMP: bootstrap CPU ID is %d\n", bootstrap_processor); cpu_set(bootstrap_processor, cpu_online_map); cpu_set(bootstrap_processor, cpu_present_map); diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c index 4d09203..9d46c43 100644 --- a/arch/parisc/kernel/time.c +++ b/arch/parisc/kernel/time.c @@ -60,7 +60,7 @@ irqreturn_t timer_interrupt(int irq, void *dev_id) unsigned long cycles_elapsed, ticks_elapsed; unsigned long cycles_remainder; unsigned int cpu = smp_processor_id(); - struct cpuinfo_parisc *cpuinfo = &cpu_data[cpu]; + struct cpuinfo_parisc *cpuinfo = &per_cpu(cpu_data, cpu); /* gcc can optimize for "read-only" case with a local clocktick */ unsigned long cpt = clocktick; @@ -213,7 +213,7 @@ void __init start_cpu_itimer(void) mtctl(next_tick, 16); /* kick off Interval Timer (CR16) */ - cpu_data[cpu].it_value = next_tick; + per_cpu(cpu_data, cpu).it_value = next_tick; } struct platform_device rtc_parisc_dev = { diff --git a/arch/parisc/kernel/topology.c b/arch/parisc/kernel/topology.c index d71cb01..f515938 100644 --- a/arch/parisc/kernel/topology.c +++ b/arch/parisc/kernel/topology.c @@ -22,14 +22,14 @@ #include <linux/cpu.h> #include <linux/cache.h> -static struct cpu cpu_devices[NR_CPUS] __read_mostly; +static DEFINE_PER_CPU(struct cpu, cpu_devices); static int __init topology_init(void) { int num; for_each_present_cpu(num) { - register_cpu(&cpu_devices[num], num); + register_cpu(&per_cpu(cpu_devices, num), num); } return 0; } |
