diff options
| author | Vineet Gupta <vgupta@kernel.org> | 2020-05-21 17:44:32 -0700 |
|---|---|---|
| committer | Vineet Gupta <vgupta@kernel.org> | 2023-08-18 10:30:47 -0700 |
| commit | 58d9ceb7d9f56bd74b8e904e26511d27a4220827 (patch) | |
| tree | 51b4c2267c5009b4edd694f008e03fa7140e164c /arch/arc/include | |
| parent | d4624bf6a6c9d9ff084eb2cba6d3cf6aeda9f974 (diff) | |
ARC: pt_regs: create seperate type for ecr
Reduces duplication in each ISA specific pt_regs
Tested-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202308151342.ROQ9Urvv-lkp@intel.com
Signed-off-by: Vineet Gupta <vgupta@kernel.org>
Diffstat (limited to 'arch/arc/include')
| -rw-r--r-- | arch/arc/include/asm/ptrace.h | 47 |
1 files changed, 18 insertions, 29 deletions
diff --git a/arch/arc/include/asm/ptrace.h b/arch/arc/include/asm/ptrace.h index 3a054b695f28..4a2b30fb5a98 100644 --- a/arch/arc/include/asm/ptrace.h +++ b/arch/arc/include/asm/ptrace.h @@ -12,6 +12,17 @@ #ifndef __ASSEMBLY__ +typedef union { + struct { +#ifdef CONFIG_CPU_BIG_ENDIAN + unsigned long state:8, vec:8, cause:8, param:8; +#else + unsigned long param:8, cause:8, vec:8, state:8; +#endif + }; + unsigned long full; +} ecr_reg; + /* THE pt_regs: Defines how regs are saved during entry into kernel */ #ifdef CONFIG_ISA_ARCOMPACT @@ -40,21 +51,10 @@ struct pt_regs { * Last word used by Linux for extra state mgmt (syscall-restart) * For interrupts, use artificial ECR values to note current prio-level */ - union { - struct { -#ifdef CONFIG_CPU_BIG_ENDIAN - unsigned long state:8, ecr_vec:8, - ecr_cause:8, ecr_param:8; -#else - unsigned long ecr_param:8, ecr_cause:8, - ecr_vec:8, state:8; -#endif - }; - unsigned long event; - }; + ecr_reg ecr; }; -#define MAX_REG_OFFSET offsetof(struct pt_regs, event) +#define MAX_REG_OFFSET offsetof(struct pt_regs, ecr) #else @@ -62,18 +62,7 @@ struct pt_regs { unsigned long orig_r0; - union { - struct { -#ifdef CONFIG_CPU_BIG_ENDIAN - unsigned long state:8, ecr_vec:8, - ecr_cause:8, ecr_param:8; -#else - unsigned long ecr_param:8, ecr_cause:8, - ecr_vec:8, state:8; -#endif - }; - unsigned long event; - }; + ecr_reg ecr; /* Exception Cause Reg */ unsigned long bta; /* erbta */ @@ -131,13 +120,13 @@ struct callee_regs { /* return 1 if PC in delay slot */ #define delay_mode(regs) ((regs->status32 & STATUS_DE_MASK) == STATUS_DE_MASK) -#define in_syscall(regs) ((regs->ecr_vec == ECR_V_TRAP) && !regs->ecr_param) -#define in_brkpt_trap(regs) ((regs->ecr_vec == ECR_V_TRAP) && regs->ecr_param) +#define in_syscall(regs) ((regs->ecr.vec == ECR_V_TRAP) && !regs->ecr.param) +#define in_brkpt_trap(regs) ((regs->ecr.vec == ECR_V_TRAP) && regs->ecr.param) #define STATE_SCALL_RESTARTED 0x01 -#define syscall_wont_restart(reg) (reg->state |= STATE_SCALL_RESTARTED) -#define syscall_restartable(reg) !(reg->state & STATE_SCALL_RESTARTED) +#define syscall_wont_restart(regs) (regs->ecr.state |= STATE_SCALL_RESTARTED) +#define syscall_restartable(regs) !(regs->ecr.state & STATE_SCALL_RESTARTED) #define current_pt_regs() \ ({ \ |