1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
  2/*
  3 * This file is subject to the terms and conditions of the GNU General Public
  4 * License.  See the file "COPYING" in the main directory of this archive
  5 * for more details.
  6 *
  7 * Copyright (C) 1994, 95, 96, 97, 98, 99, 2000 by Ralf Baechle
  8 * Copyright (C) 1999, 2000 Silicon Graphics, Inc.
  9 */
 10#ifndef _ASM_PTRACE_H
 11#define _ASM_PTRACE_H
 12
 13#include <linux/types.h>
 14
 15/* 0 - 31 are integer registers, 32 - 63 are fp registers.  */
 16#define FPR_BASE	32
 17#define PC		64
 18#define CAUSE		65
 19#define BADVADDR	66
 20#define MMHI		67
 21#define MMLO		68
 22#define FPC_CSR		69
 23#define FPC_EIR		70
 24#define DSP_BASE	71		/* 3 more hi / lo register pairs */
 25#define DSP_CONTROL	77
 26#define ACX		78
 27
 28/*
 29 * This struct defines the registers as used by PTRACE_{GET,SET}REGS. The
 30 * format is the same for both 32- and 64-bit processes. Registers for 32-bit
 31 * processes are sign extended.
 32 */
 33struct pt_regs {
 34	/* Saved main processor registers. */
 35	__u64 regs[32];
 36
 37	/* Saved special registers. */
 38	__u64 lo;
 39	__u64 hi;
 40	__u64 cp0_epc;
 41	__u64 cp0_badvaddr;
 42	__u64 cp0_status;
 43	__u64 cp0_cause;
 44} __attribute__ ((aligned (8)));
 45
 46/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
 47#define PTRACE_GETREGS		12
 48#define PTRACE_SETREGS		13
 49#define PTRACE_GETFPREGS		14
 50#define PTRACE_SETFPREGS		15
 51/* #define PTRACE_GETFPXREGS		18 */
 52/* #define PTRACE_SETFPXREGS		19 */
 53
 54#define PTRACE_OLDSETOPTIONS	21
 55
 56#define PTRACE_GET_THREAD_AREA	25
 57#define PTRACE_SET_THREAD_AREA	26
 58
 59/* Calls to trace a 64bit program from a 32bit program.	 */
 60#define PTRACE_PEEKTEXT_3264	0xc0
 61#define PTRACE_PEEKDATA_3264	0xc1
 62#define PTRACE_POKETEXT_3264	0xc2
 63#define PTRACE_POKEDATA_3264	0xc3
 64#define PTRACE_GET_THREAD_AREA_3264	0xc4
 65
 66/* Read and write watchpoint registers.	 */
 67enum pt_watch_style {
 68	pt_watch_style_mips32,
 69	pt_watch_style_mips64
 70};
 71struct mips32_watch_regs {
 72	unsigned int watchlo[8];
 73	/* Lower 16 bits of watchhi. */
 74	unsigned short watchhi[8];
 75	/* Valid mask and I R W bits.
 76	 * bit 0 -- 1 if W bit is usable.
 77	 * bit 1 -- 1 if R bit is usable.
 78	 * bit 2 -- 1 if I bit is usable.
 79	 * bits 3 - 11 -- Valid watchhi mask bits.
 80	 */
 81	unsigned short watch_masks[8];
 82	/* The number of valid watch register pairs.  */
 83	unsigned int num_valid;
 84} __attribute__((aligned(8)));
 85
 86struct mips64_watch_regs {
 87	unsigned long long watchlo[8];
 88	unsigned short watchhi[8];
 89	unsigned short watch_masks[8];
 90	unsigned int num_valid;
 91} __attribute__((aligned(8)));
 92
 93struct pt_watch_regs {
 94	enum pt_watch_style style;
 95	union {
 96		struct mips32_watch_regs mips32;
 97		struct mips64_watch_regs mips64;
 98	};
 99};
100
101#define PTRACE_GET_WATCH_REGS	0xd0
102#define PTRACE_SET_WATCH_REGS	0xd1
103
104
105#endif /* _ASM_PTRACE_H */