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