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Commit 06717352 authored by Russell King's avatar Russell King
Browse files

ARM: Provide common header for hard_smp_processor_id() 



Provide a common header to read the SMP CPU number from the MPIDR.

Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 971acb9b

arch/arm/include/asm/smp_mpidr.h

0 → 100644
+12 −0
Original line number Diff line number Diff line 
#ifndef ASMARM_SMP_MIDR_H

#define ASMARM_SMP_MIDR_H



#define hard_smp_processor_id()						\

	({								\

		unsigned int cpunum;					\

		__asm__("mrc p15, 0, %0, c0, c0, 5\n"			\

			: "=r" (cpunum));				\

		cpunum &= 0x0F;						\

	})



#endif

arch/arm/mach-realview/include/mach/smp.h

+1 −9
Original line number Diff line number Diff line 
#ifndef ASMARM_ARCH_SMP_H

#define ASMARM_ARCH_SMP_H





#include <asm/hardware/gic.h>



#define hard_smp_processor_id()			\

	({						\

		unsigned int cpunum;			\

		__asm__("mrc p15, 0, %0, c0, c0, 5"	\

			: "=r" (cpunum));		\

		cpunum &= 0x0F;				\

	})

#include <asm/smp_mpidr.h>



/*

 * We use IRQ1 as the IPI

arch/arm/mach-s5pv310/include/mach/smp.h

+1 −8
Original line number Diff line number Diff line
@@ -7,17 +7,10 @@ 
#define ASM_ARCH_SMP_H __FILE__



#include <asm/hardware/gic.h>

#include <asm/smp_mpidr.h>



extern void __iomem *gic_cpu_base_addr;



#define hard_smp_processor_id()			\

	({						\

		unsigned int cpunum;			\

		__asm__("mrc p15, 0, %0, c0, c0, 5"	\

			: "=r" (cpunum));		\

		cpunum &= 0x03;				\

	})



/*

 * We use IRQ1 as the IPI

 */

arch/arm/mach-tegra/include/mach/smp.h

+1 −9
Original line number Diff line number Diff line 
#ifndef ASMARM_ARCH_SMP_H

#define ASMARM_ARCH_SMP_H





#include <asm/hardware/gic.h>



#define hard_smp_processor_id()			\

	({						\

		unsigned int cpunum;			\

		__asm__("mrc p15, 0, %0, c0, c0, 5"	\

			: "=r" (cpunum));		\

		cpunum &= 0x0F;				\

	})

#include <asm/smp_mpidr.h>



/*

 * We use IRQ1 as the IPI

arch/arm/mach-ux500/include/mach/smp.h

+1 −8
Original line number Diff line number Diff line
@@ -10,18 +10,11 @@ 
#define ASMARM_ARCH_SMP_H



#include <asm/hardware/gic.h>

#include <asm/smp_mpidr.h>



/* This is required to wakeup the secondary core */

extern void u8500_secondary_startup(void);



#define hard_smp_processor_id()				\

	({						\

		unsigned int cpunum;			\

		__asm__("mrc p15, 0, %0, c0, c0, 5"	\

			: "=r" (cpunum));		\

		cpunum &= 0x0F;				\

	})



/*

 * We use IRQ1 as the IPI

 */