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Linux/arch/arm/include/asm/system_misc.h

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  1 /* SPDX-License-Identifier: GPL-2.0 */
  2 #ifndef __ASM_ARM_SYSTEM_MISC_H
  3 #define __ASM_ARM_SYSTEM_MISC_H
  4 
  5 #ifndef __ASSEMBLY__
  6 
  7 #include <linux/compiler.h>
  8 #include <linux/linkage.h>
  9 #include <linux/irqflags.h>
 10 #include <linux/reboot.h>
 11 #include <linux/percpu.h>
 12 
 13 extern void cpu_init(void);
 14 
 15 void soft_restart(unsigned long);
 16 extern void (*arm_pm_idle)(void);
 17 
 18 #ifdef CONFIG_HARDEN_BRANCH_PREDICTOR
 19 typedef void (*harden_branch_predictor_fn_t)(void);
 20 DECLARE_PER_CPU(harden_branch_predictor_fn_t, harden_branch_predictor_fn);
 21 static inline void harden_branch_predictor(void)
 22 {
 23         harden_branch_predictor_fn_t fn = per_cpu(harden_branch_predictor_fn,
 24                                                   smp_processor_id());
 25         if (fn)
 26                 fn();
 27 }
 28 #else
 29 #define harden_branch_predictor() do { } while (0)
 30 #endif
 31 
 32 #define UDBG_UNDEFINED  (1 << 0)
 33 #define UDBG_SYSCALL    (1 << 1)
 34 #define UDBG_BADABORT   (1 << 2)
 35 #define UDBG_SEGV       (1 << 3)
 36 #define UDBG_BUS        (1 << 4)
 37 
 38 extern unsigned int user_debug;
 39 
 40 #endif /* !__ASSEMBLY__ */
 41 
 42 #endif /* __ASM_ARM_SYSTEM_MISC_H */
 43 

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