| /* SPDX-License-Identifier: GPL-2.0 */ |
| // Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd. |
| |
| #ifndef _CSKY_PTRACE_H |
| #define _CSKY_PTRACE_H |
| |
| #ifndef __ASSEMBLY__ |
| |
| struct pt_regs { |
| unsigned long tls; |
| unsigned long lr; |
| unsigned long pc; |
| unsigned long sr; |
| unsigned long usp; |
| |
| /* |
| * a0, a1, a2, a3: |
| * abiv1: r2, r3, r4, r5 |
| * abiv2: r0, r1, r2, r3 |
| */ |
| unsigned long orig_a0; |
| unsigned long a0; |
| unsigned long a1; |
| unsigned long a2; |
| unsigned long a3; |
| |
| /* |
| * ABIV2: r4 ~ r13 |
| * ABIV1: r6 ~ r14, r1 |
| */ |
| unsigned long regs[10]; |
| |
| #if defined(__CSKYABIV2__) |
| /* r16 ~ r30 */ |
| unsigned long exregs[15]; |
| |
| unsigned long rhi; |
| unsigned long rlo; |
| unsigned long pad; /* reserved */ |
| #endif |
| }; |
| |
| struct user_fp { |
| unsigned long vr[96]; |
| unsigned long fcr; |
| unsigned long fesr; |
| unsigned long fid; |
| unsigned long reserved; |
| }; |
| |
| /* |
| * Switch stack for switch_to after push pt_regs. |
| * |
| * ABI_CSKYV2: r4 ~ r11, r15 ~ r17, r26 ~ r30; |
| * ABI_CSKYV1: r8 ~ r14, r15; |
| */ |
| struct switch_stack { |
| #if defined(__CSKYABIV2__) |
| unsigned long r4; |
| unsigned long r5; |
| unsigned long r6; |
| unsigned long r7; |
| unsigned long r8; |
| unsigned long r9; |
| unsigned long r10; |
| unsigned long r11; |
| #else |
| unsigned long r8; |
| unsigned long r9; |
| unsigned long r10; |
| unsigned long r11; |
| unsigned long r12; |
| unsigned long r13; |
| unsigned long r14; |
| #endif |
| unsigned long r15; |
| #if defined(__CSKYABIV2__) |
| unsigned long r16; |
| unsigned long r17; |
| unsigned long r26; |
| unsigned long r27; |
| unsigned long r28; |
| unsigned long r29; |
| unsigned long r30; |
| #endif |
| }; |
| |
| #ifdef __KERNEL__ |
| |
| #define PS_S 0x80000000 /* Supervisor Mode */ |
| |
| #define arch_has_single_step() (1) |
| #define current_pt_regs() \ |
| ({ (struct pt_regs *)((char *)current_thread_info() + THREAD_SIZE) - 1; }) |
| |
| #define user_stack_pointer(regs) ((regs)->usp) |
| |
| #define user_mode(regs) (!((regs)->sr & PS_S)) |
| #define instruction_pointer(regs) ((regs)->pc) |
| #define profile_pc(regs) instruction_pointer(regs) |
| |
| #endif /* __KERNEL__ */ |
| #endif /* __ASSEMBLY__ */ |
| #endif /* _CSKY_PTRACE_H */ |
