diff options
Diffstat (limited to 'arch/mips/include/asm/branch.h')
| -rw-r--r-- | arch/mips/include/asm/branch.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/arch/mips/include/asm/branch.h b/arch/mips/include/asm/branch.h index e28a3e0eb3cb..de781cf54bc7 100644 --- a/arch/mips/include/asm/branch.h +++ b/arch/mips/include/asm/branch.h @@ -8,6 +8,8 @@ #ifndef _ASM_BRANCH_H #define _ASM_BRANCH_H +#include <asm/cpu-features.h> +#include <asm/mipsregs.h> #include <asm/ptrace.h> #include <asm/inst.h> @@ -18,12 +20,40 @@ extern int __compute_return_epc_for_insn(struct pt_regs *regs, extern int __microMIPS_compute_return_epc(struct pt_regs *regs); extern int __MIPS16e_compute_return_epc(struct pt_regs *regs); +/* + * microMIPS bitfields + */ +#define MM_POOL32A_MINOR_MASK 0x3f +#define MM_POOL32A_MINOR_SHIFT 0x6 +#define MM_MIPS32_COND_FC 0x30 + +extern int __mm_isBranchInstr(struct pt_regs *regs, + struct mm_decoded_insn dec_insn, unsigned long *contpc); + +static inline int mm_isBranchInstr(struct pt_regs *regs, + struct mm_decoded_insn dec_insn, unsigned long *contpc) +{ + if (!cpu_has_mmips) + return 0; + + return __mm_isBranchInstr(regs, dec_insn, contpc); +} static inline int delay_slot(struct pt_regs *regs) { return regs->cp0_cause & CAUSEF_BD; } +static inline void clear_delay_slot(struct pt_regs *regs) +{ + regs->cp0_cause &= ~CAUSEF_BD; +} + +static inline void set_delay_slot(struct pt_regs *regs) +{ + regs->cp0_cause |= CAUSEF_BD; +} + static inline unsigned long exception_epc(struct pt_regs *regs) { if (likely(!delay_slot(regs))) |