diff options
Diffstat (limited to 'arch/arm/include/asm/system_misc.h')
-rw-r--r-- | arch/arm/include/asm/system_misc.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/arch/arm/include/asm/system_misc.h b/arch/arm/include/asm/system_misc.h new file mode 100644 index 0000000000..98b3734037 --- /dev/null +++ b/arch/arm/include/asm/system_misc.h @@ -0,0 +1,42 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_ARM_SYSTEM_MISC_H +#define __ASM_ARM_SYSTEM_MISC_H + +#ifndef __ASSEMBLY__ + +#include <linux/compiler.h> +#include <linux/linkage.h> +#include <linux/irqflags.h> +#include <linux/reboot.h> +#include <linux/percpu.h> + +extern void cpu_init(void); + +void soft_restart(unsigned long); +extern void (*arm_pm_idle)(void); + +#ifdef CONFIG_HARDEN_BRANCH_PREDICTOR +typedef void (*harden_branch_predictor_fn_t)(void); +DECLARE_PER_CPU(harden_branch_predictor_fn_t, harden_branch_predictor_fn); +static inline void harden_branch_predictor(void) +{ + harden_branch_predictor_fn_t fn = per_cpu(harden_branch_predictor_fn, + smp_processor_id()); + if (fn) + fn(); +} +#else +#define harden_branch_predictor() do { } while (0) +#endif + +#define UDBG_UNDEFINED (1 << 0) +#define UDBG_SYSCALL (1 << 1) +#define UDBG_BADABORT (1 << 2) +#define UDBG_SEGV (1 << 3) +#define UDBG_BUS (1 << 4) + +extern unsigned int user_debug; + +#endif /* !__ASSEMBLY__ */ + +#endif /* __ASM_ARM_SYSTEM_MISC_H */ |