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Filename/usr/src/linux-headers-3.13.0-24/arch/arm/include/asm/smp_scu.h
Size929
Permissionrw-r--r--
Ownerroot : root
Create time27-Apr-2025 09:50
Last modified20-Jan-2014 10:40
Last accessed07-Jul-2025 07:16
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#ifndef __ASMARM_ARCH_SCU_H
#define __ASMARM_ARCH_SCU_H

#define SCU_PM_NORMAL 0
#define SCU_PM_DORMANT 2
#define SCU_PM_POWEROFF 3

#ifndef __ASSEMBLER__

#include <asm/cputype.h>

static inline bool scu_a9_has_base(void)
{
return read_cpuid_part_number() == ARM_CPU_PART_CORTEX_A9;
}

static inline unsigned long scu_a9_get_base(void)
{
unsigned long pa;

asm("mrc p15, 4, %0, c15, c0, 0" : "=r" (pa));

return pa;
}

#ifdef CONFIG_HAVE_ARM_SCU
unsigned int scu_get_core_count(void __iomem *);
int scu_power_mode(void __iomem *, unsigned int);
#else
static inline unsigned int scu_get_core_count(void __iomem *scu_base)
{
return 0;
}
static inline int scu_power_mode(void __iomem *scu_base, unsigned int mode)
{
return -EINVAL;
}
#endif

#if defined(CONFIG_SMP) && defined(CONFIG_HAVE_ARM_SCU)
void scu_enable(void __iomem *scu_base);
#else
static inline void scu_enable(void __iomem *scu_base) {}
#endif

#endif

#endif