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Commit b5f82176 authored by Stafford Horne's avatar Stafford Horne
Browse files

openrisc: use qspinlocks and qrwlocks 



Enable OpenRISC to use qspinlocks and qrwlocks for upcoming SMP support.

Signed-off-by: default avatarStafford Horne <shorne@gmail.com>
parent 489e0f80

arch/openrisc/Kconfig

+2 −0
Original line number Diff line number Diff line
@@ -28,6 +28,8 @@ config OPENRISC 
	select OR1K_PIC

	select CPU_NO_EFFICIENT_FFS if !OPENRISC_HAVE_INST_FF1

	select NO_BOOTMEM

	select ARCH_USE_QUEUED_SPINLOCKS

	select ARCH_USE_QUEUED_RWLOCKS



config CPU_BIG_ENDIAN

	def_bool y

arch/openrisc/include/asm/Kbuild

+4 −0
Original line number Diff line number Diff line
@@ -28,6 +28,10 @@ generic-y += module.h 
generic-y += pci.h

generic-y += percpu.h

generic-y += preempt.h

generic-y += qspinlock_types.h

generic-y += qspinlock.h

generic-y += qrwlock_types.h

generic-y += qrwlock.h

generic-y += sections.h

generic-y += segment.h

generic-y += string.h

arch/openrisc/include/asm/spinlock.h

+11 −1
Original line number Diff line number Diff line
@@ -19,6 +19,16 @@ 
#ifndef __ASM_OPENRISC_SPINLOCK_H

#define __ASM_OPENRISC_SPINLOCK_H



#error "or32 doesn't do SMP yet"

#include <asm/qspinlock.h>



#include <asm/qrwlock.h>



#define arch_read_lock_flags(lock, flags) arch_read_lock(lock)

#define arch_write_lock_flags(lock, flags) arch_write_lock(lock)



#define arch_spin_relax(lock)	cpu_relax()

#define arch_read_relax(lock)	cpu_relax()

#define arch_write_relax(lock)	cpu_relax()





#endif

arch/openrisc/include/asm/spinlock_types.h

0 → 100644
+7 −0
Original line number Diff line number Diff line 
#ifndef _ASM_OPENRISC_SPINLOCK_TYPES_H

#define _ASM_OPENRISC_SPINLOCK_TYPES_H



#include <asm/qspinlock_types.h>

#include <asm/qrwlock_types.h>



#endif /* _ASM_OPENRISC_SPINLOCK_TYPES_H */