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Commit 20cf33ea authored by Russell King's avatar Russell King
Browse files

[PATCH] ARM SMP: Add basic support Integrator/CP platform 



Add basic SMP support for the Integrator/CP platform.

Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent e65f38ed

arch/arm/mach-integrator/Makefile

+1 −0
Original line number Original line Diff line number Diff line
@@ -12,3 +12,4 @@ obj-$(CONFIG_LEDS) += leds.o 
obj-$(CONFIG_PCI)			+= pci_v3.o pci.o

obj-$(CONFIG_PCI)			+= pci_v3.o pci.o

obj-$(CONFIG_CPU_FREQ_INTEGRATOR)	+= cpu.o

obj-$(CONFIG_CPU_FREQ_INTEGRATOR)	+= cpu.o

obj-$(CONFIG_INTEGRATOR_IMPD1)		+= impd1.o

obj-$(CONFIG_INTEGRATOR_IMPD1)		+= impd1.o

obj-$(CONFIG_SMP)			+= platsmp.o headsmp.o

arch/arm/mach-integrator/core.c

+19 −1
Original line number Original line Diff line number Diff line
@@ -14,6 +14,7 @@ 
#include <linux/spinlock.h>

#include <linux/spinlock.h>

#include <linux/interrupt.h>

#include <linux/interrupt.h>

#include <linux/sched.h>

#include <linux/sched.h>

#include <linux/smp.h>





#include <asm/hardware.h>

#include <asm/hardware.h>

#include <asm/irq.h>

#include <asm/irq.h>
@@ -221,7 +222,24 @@ integrator_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs) 
	 */

	 */

	timer1->TimerClear = 1;

	timer1->TimerClear = 1;





	/*

	 * the clock tick routines are only processed on the

	 * primary CPU

	 */

	if (hard_smp_processor_id() == 0) {

		nmi_tick();

		timer_tick(regs);

		timer_tick(regs);

#ifdef CONFIG_SMP

		smp_send_timer();

#endif

	}



#ifdef CONFIG_SMP

	/*

	 * this is the ARM equivalent of the APIC timer interrupt

	 */

	update_process_times(user_mode(regs));

#endif /* CONFIG_SMP */





	write_sequnlock(&xtime_lock);

	write_sequnlock(&xtime_lock);

arch/arm/mach-integrator/leds.c

+3 −1
Original line number Original line Diff line number Diff line
@@ -22,6 +22,8 @@ 
 */

 */

#include <linux/kernel.h>

#include <linux/kernel.h>

#include <linux/init.h>

#include <linux/init.h>

#include <linux/smp.h>

#include <linux/spinlock.h>





#include <asm/hardware.h>

#include <asm/hardware.h>

#include <asm/io.h>

#include <asm/io.h>
@@ -85,4 +87,4 @@ static int __init leds_init(void) 
	return 0;

	return 0;

}

}





__initcall(leds_init);
 
core_initcall(leds_init);