ptrace-decl.h

  1/* SPDX-License-Identifier: GPL-2.0-or-later */
  2
  3#include <linux/regset.h>
  4
  5/*
  6 * Set of msr bits that gdb can change on behalf of a process.
  7 */
  8#ifdef CONFIG_PPC_ADV_DEBUG_REGS
  9#define MSR_DEBUGCHANGE	0
 10#else
 11#define MSR_DEBUGCHANGE	(MSR_SE | MSR_BE)
 12#endif
 13
 14/*
 15 * Max register writeable via put_reg
 16 */
 17#ifdef CONFIG_PPC32
 18#define PT_MAX_PUT_REG	PT_MQ
 19#else
 20#define PT_MAX_PUT_REG	PT_CCR
 21#endif
 22
 23#define TVSO(f)	(offsetof(struct thread_vr_state, f))
 24#define TFSO(f)	(offsetof(struct thread_fp_state, f))
 25#define TSO(f)	(offsetof(struct thread_struct, f))
 26
 27/*
 28 * These are our native regset flavors.
 29 */
 30enum powerpc_regset {
 31	REGSET_GPR,
 32	REGSET_FPR,
 33#ifdef CONFIG_ALTIVEC
 34	REGSET_VMX,
 35#endif
 36#ifdef CONFIG_VSX
 37	REGSET_VSX,
 38#endif
 39#ifdef CONFIG_SPE
 40	REGSET_SPE,
 41#endif
 42#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 43	REGSET_TM_CGPR,		/* TM checkpointed GPR registers */
 44	REGSET_TM_CFPR,		/* TM checkpointed FPR registers */
 45	REGSET_TM_CVMX,		/* TM checkpointed VMX registers */
 46	REGSET_TM_CVSX,		/* TM checkpointed VSX registers */
 47	REGSET_TM_SPR,		/* TM specific SPR registers */
 48	REGSET_TM_CTAR,		/* TM checkpointed TAR register */
 49	REGSET_TM_CPPR,		/* TM checkpointed PPR register */
 50	REGSET_TM_CDSCR,	/* TM checkpointed DSCR register */
 51#endif
 52#ifdef CONFIG_PPC64
 53	REGSET_PPR,		/* PPR register */
 54	REGSET_DSCR,		/* DSCR register */
 55#endif
 56#ifdef CONFIG_PPC_BOOK3S_64
 57	REGSET_TAR,		/* TAR register */
 58	REGSET_EBB,		/* EBB registers */
 59	REGSET_PMR,		/* Performance Monitor Registers */
 60	REGSET_DEXCR,		/* DEXCR registers */
 61#ifdef CONFIG_CHECKPOINT_RESTORE
 62	REGSET_HASHKEYR,	/* HASHKEYR register */
 63#endif
 64#endif
 65#ifdef CONFIG_PPC_MEM_KEYS
 66	REGSET_PKEY,		/* AMR register */
 67#endif
 68};
 69
 70/* ptrace-(no)vsx */
 71
 72user_regset_get2_fn fpr_get;
 73int fpr_set(struct task_struct *target, const struct user_regset *regset,
 74	    unsigned int pos, unsigned int count,
 75	    const void *kbuf, const void __user *ubuf);
 76
 77/* ptrace-vsx */
 78
 79int vsr_active(struct task_struct *target, const struct user_regset *regset);
 80user_regset_get2_fn vsr_get;
 81int vsr_set(struct task_struct *target, const struct user_regset *regset,
 82	    unsigned int pos, unsigned int count,
 83	    const void *kbuf, const void __user *ubuf);
 84
 85/* ptrace-altivec */
 86
 87int vr_active(struct task_struct *target, const struct user_regset *regset);
 88user_regset_get2_fn vr_get;
 89int vr_set(struct task_struct *target, const struct user_regset *regset,
 90	   unsigned int pos, unsigned int count,
 91	   const void *kbuf, const void __user *ubuf);
 92
 93/* ptrace-spe */
 94
 95int evr_active(struct task_struct *target, const struct user_regset *regset);
 96user_regset_get2_fn evr_get;
 97int evr_set(struct task_struct *target, const struct user_regset *regset,
 98	    unsigned int pos, unsigned int count,
 99	    const void *kbuf, const void __user *ubuf);
100
101/* ptrace */
102
103int gpr32_get_common(struct task_struct *target,
104		     const struct user_regset *regset,
105		     struct membuf to,
106		     unsigned long *regs);
107int gpr32_set_common(struct task_struct *target,
108		     const struct user_regset *regset,
109		     unsigned int pos, unsigned int count,
110		     const void *kbuf, const void __user *ubuf,
111		     unsigned long *regs);
112
113/* ptrace-tm */
114
115#ifdef CONFIG_PPC_TRANSACTIONAL_MEM
116void flush_tmregs_to_thread(struct task_struct *tsk);
117#else
118static inline void flush_tmregs_to_thread(struct task_struct *tsk) { }
119#endif
120
121int tm_cgpr_active(struct task_struct *target, const struct user_regset *regset);
122user_regset_get2_fn tm_cgpr_get;
123int tm_cgpr_set(struct task_struct *target, const struct user_regset *regset,
124		unsigned int pos, unsigned int count,
125		const void *kbuf, const void __user *ubuf);
126int tm_cfpr_active(struct task_struct *target, const struct user_regset *regset);
127user_regset_get2_fn tm_cfpr_get;
128int tm_cfpr_set(struct task_struct *target, const struct user_regset *regset,
129		unsigned int pos, unsigned int count,
130		const void *kbuf, const void __user *ubuf);
131int tm_cvmx_active(struct task_struct *target, const struct user_regset *regset);
132user_regset_get2_fn tm_cvmx_get;
133int tm_cvmx_set(struct task_struct *target, const struct user_regset *regset,
134		unsigned int pos, unsigned int count,
135		const void *kbuf, const void __user *ubuf);
136int tm_cvsx_active(struct task_struct *target, const struct user_regset *regset);
137user_regset_get2_fn tm_cvsx_get;
138int tm_cvsx_set(struct task_struct *target, const struct user_regset *regset,
139		unsigned int pos, unsigned int count,
140		const void *kbuf, const void __user *ubuf);
141int tm_spr_active(struct task_struct *target, const struct user_regset *regset);
142user_regset_get2_fn tm_spr_get;
143int tm_spr_set(struct task_struct *target, const struct user_regset *regset,
144	       unsigned int pos, unsigned int count,
145	       const void *kbuf, const void __user *ubuf);
146int tm_tar_active(struct task_struct *target, const struct user_regset *regset);
147user_regset_get2_fn tm_tar_get;
148int tm_tar_set(struct task_struct *target, const struct user_regset *regset,
149	       unsigned int pos, unsigned int count,
150	       const void *kbuf, const void __user *ubuf);
151int tm_ppr_active(struct task_struct *target, const struct user_regset *regset);
152user_regset_get2_fn tm_ppr_get;
153int tm_ppr_set(struct task_struct *target, const struct user_regset *regset,
154	       unsigned int pos, unsigned int count,
155	       const void *kbuf, const void __user *ubuf);
156int tm_dscr_active(struct task_struct *target, const struct user_regset *regset);
157user_regset_get2_fn tm_dscr_get;
158int tm_dscr_set(struct task_struct *target, const struct user_regset *regset,
159		unsigned int pos, unsigned int count,
160		const void *kbuf, const void __user *ubuf);
161user_regset_get2_fn tm_cgpr32_get;
162int tm_cgpr32_set(struct task_struct *target, const struct user_regset *regset,
163		  unsigned int pos, unsigned int count,
164		  const void *kbuf, const void __user *ubuf);
165
166/* ptrace-view */
167
168int ptrace_get_reg(struct task_struct *task, int regno, unsigned long *data);
169int ptrace_put_reg(struct task_struct *task, int regno, unsigned long data);
170
171extern const struct user_regset_view user_ppc_native_view;
172
173/* ptrace-fpu */
174int ptrace_get_fpr(struct task_struct *child, int index, unsigned long *data);
175int ptrace_put_fpr(struct task_struct *child, int index, unsigned long data);
176
177/* ptrace-(no)adv */
178void ppc_gethwdinfo(struct ppc_debug_info *dbginfo);
179int ptrace_get_debugreg(struct task_struct *child, unsigned long addr,
180			unsigned long __user *datalp);
181int ptrace_set_debugreg(struct task_struct *task, unsigned long addr, unsigned long data);
182long ppc_set_hwdebug(struct task_struct *child, struct ppc_hw_breakpoint *bp_info);
183long ppc_del_hwdebug(struct task_struct *child, long data);