LXR linux/arch/arm/include/asm/smp

   1#ifndef __ASMARM_ARCH_SCU_H
   2#define __ASMARM_ARCH_SCU_H
   3
   4#define SCU_PM_NORMAL   0
   5#define SCU_PM_DORMANT  2
   6#define SCU_PM_POWEROFF 3
   7
   8#ifndef __ASSEMBLER__
   9
  10#include <asm/cputype.h>
  11
  12static inline bool scu_a9_has_base(void)
  13{
  14        return read_cpuid_part() == ARM_CPU_PART_CORTEX_A9;
  15}
  16
  17static inline unsigned long scu_a9_get_base(void)
  18{
  19        unsigned long pa;
  20
  21        asm("mrc p15, 4, %0, c15, c0, 0" : "=r" (pa));
  22
  23        return pa;
  24}
  25
  26#ifdef CONFIG_HAVE_ARM_SCU
  27unsigned int scu_get_core_count(void __iomem *);
  28int scu_power_mode(void __iomem *, unsigned int);
  29#else
  30static inline unsigned int scu_get_core_count(void __iomem *scu_base)
  31{
  32        return 0;
  33}
  34static inline int scu_power_mode(void __iomem *scu_base, unsigned int mode)
  35{
  36        return -EINVAL;
  37}
  38#endif
  39
  40#if defined(CONFIG_SMP) && defined(CONFIG_HAVE_ARM_SCU)
  41void scu_enable(void __iomem *scu_base);
  42#else
  43static inline void scu_enable(void __iomem *scu_base) {}
  44#endif
  45
  46#endif
  47
  48#endif
  49