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Commit ef017beb authored by Helge Deller's avatar Helge Deller Committed by Kyle McMartin
Browse files

parisc: Replace NR_CPUS in parisc code 



parisc: Replace most arrays sized by NR_CPUS with percpu variables.

Signed-off-by: default avatarHelge Deller <deller@gmx.de>
Signed-off-by: default avatarKyle McMartin <kyle@mcmartin.ca>
parent 7f2347a4

arch/parisc/include/asm/processor.h

+2 −2
Original line number Diff line number Diff line
@@ -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)

arch/parisc/kernel/irq.c

+5 −4
Original line number Diff line number Diff line
@@ -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;

}
@@ -309,7 +309,8 @@ 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 || 

	while ((next_cpu < NR_CPUS) &&

		(!per_cpu(cpu_data, next_cpu).txn_addr ||

		 !cpu_online(next_cpu)))

		next_cpu++;
@@ -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

arch/parisc/kernel/perf.c

+2 −2
Original line number Diff line number Diff line
@@ -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;

}

arch/parisc/kernel/processor.c

+35 −33
Original line number Diff line number Diff line
@@ -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 */
@@ -68,6 +68,23 @@ extern int update_cr16_clocksource(void); /* from time.c */ 
** The initialization of OS data structures is the same (done below).

*/



/**

 * 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() */
@@ -164,10 +181,7 @@ static int __cpuinit processor_probe(struct parisc_device *dev) 
	** FIXME: review if any other initialization is clobbered

	**	  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);

arch/parisc/kernel/setup.c

+3 −3
Original line number Diff line number Diff line
@@ -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 {