arch/powerpc/kernel/ptrace/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  */
  30 enum 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
  72 user_regset_get2_fn fpr_get;
  73 int 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
  79 int vsr_active(struct task_struct *target, const struct user_regset *regset);
  80 user_regset_get2_fn vsr_get;
  81 int 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
  87 int vr_active(struct task_struct *target, const struct user_regset *regset);
  88 user_regset_get2_fn vr_get;
  89 int 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
  95 int evr_active(struct task_struct *target, const struct user_regset *regset);
  96 user_regset_get2_fn evr_get;
  97 int 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
 103 int gpr32_get_common(struct task_struct *target,
 104                      const struct user_regset *regset,
 105                      struct membuf to,
 106                      unsigned long *regs);
 107 int 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
 116 void flush_tmregs_to_thread(struct task_struct *tsk);
 117 #else
 118 static inline void flush_tmregs_to_thread(struct task_struct *tsk) { }
 119 #endif
 120
 121 int tm_cgpr_active(struct task_struct *target, const struct user_regset *regset);
 122 user_regset_get2_fn tm_cgpr_get;
 123 int 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);
 126 int tm_cfpr_active(struct task_struct *target, const struct user_regset *regset);
 127 user_regset_get2_fn tm_cfpr_get;
 128 int 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);
 131 int tm_cvmx_active(struct task_struct *target, const struct user_regset *regset);
 132 user_regset_get2_fn tm_cvmx_get;
 133 int 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);
 136 int tm_cvsx_active(struct task_struct *target, const struct user_regset *regset);
 137 user_regset_get2_fn tm_cvsx_get;
 138 int 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);
 141 int tm_spr_active(struct task_struct *target, const struct user_regset *regset);
 142 user_regset_get2_fn tm_spr_get;
 143 int 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);
 146 int tm_tar_active(struct task_struct *target, const struct user_regset *regset);
 147 user_regset_get2_fn tm_tar_get;
 148 int 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);
 151 int tm_ppr_active(struct task_struct *target, const struct user_regset *regset);
 152 user_regset_get2_fn tm_ppr_get;
 153 int 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);
 156 int tm_dscr_active(struct task_struct *target, const struct user_regset *regset);
 157 user_regset_get2_fn tm_dscr_get;
 158 int 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);
 161 user_regset_get2_fn tm_cgpr32_get;
 162 int 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
 168 int ptrace_get_reg(struct task_struct *task, int regno, unsigned long *data);
 169 int ptrace_put_reg(struct task_struct *task, int regno, unsigned long data);
 170
 171 extern const struct user_regset_view user_ppc_native_view;
 172
 173 /* ptrace-fpu */
 174 int ptrace_get_fpr(struct task_struct *child, int index, unsigned long *data);
 175 int ptrace_put_fpr(struct task_struct *child, int index, unsigned long data);
 176
 177 /* ptrace-(no)adv */
 178 void ppc_gethwdinfo(struct ppc_debug_info *dbginfo);
 179 int ptrace_get_debugreg(struct task_struct *child, unsigned long addr,
 180                         unsigned long __user *datalp);
 181 int ptrace_set_debugreg(struct task_struct *task, unsigned long addr, unsigned long data);
 182 long ppc_set_hwdebug(struct task_struct *child, struct ppc_hw_breakpoint *bp_info);
 183 long ppc_del_hwdebug(struct task_struct *child, long data);