arch/powerpc/kernel/ptrace/ptrace-decl.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2
   3 /*
   4  * Set of msr bits that gdb can change on behalf of a process.
   5  */
   6 #ifdef CONFIG_PPC_ADV_DEBUG_REGS
   7 #define MSR_DEBUGCHANGE 0
   8 #else
   9 #define MSR_DEBUGCHANGE (MSR_SE | MSR_BE)
  10 #endif
  11
  12 /*
  13  * Max register writeable via put_reg
  14  */
  15 #ifdef CONFIG_PPC32
  16 #define PT_MAX_PUT_REG  PT_MQ
  17 #else
  18 #define PT_MAX_PUT_REG  PT_CCR
  19 #endif
  20
  21 #define TVSO(f) (offsetof(struct thread_vr_state, f))
  22 #define TFSO(f) (offsetof(struct thread_fp_state, f))
  23 #define TSO(f)  (offsetof(struct thread_struct, f))
  24
  25 /*
  26  * These are our native regset flavors.
  27  */
  28 enum powerpc_regset {
  29         REGSET_GPR,
  30         REGSET_FPR,
  31 #ifdef CONFIG_ALTIVEC
  32         REGSET_VMX,
  33 #endif
  34 #ifdef CONFIG_VSX
  35         REGSET_VSX,
  36 #endif
  37 #ifdef CONFIG_SPE
  38         REGSET_SPE,
  39 #endif
  40 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
  41         REGSET_TM_CGPR,         /* TM checkpointed GPR registers */
  42         REGSET_TM_CFPR,         /* TM checkpointed FPR registers */
  43         REGSET_TM_CVMX,         /* TM checkpointed VMX registers */
  44         REGSET_TM_CVSX,         /* TM checkpointed VSX registers */
  45         REGSET_TM_SPR,          /* TM specific SPR registers */
  46         REGSET_TM_CTAR,         /* TM checkpointed TAR register */
  47         REGSET_TM_CPPR,         /* TM checkpointed PPR register */
  48         REGSET_TM_CDSCR,        /* TM checkpointed DSCR register */
  49 #endif
  50 #ifdef CONFIG_PPC64
  51         REGSET_PPR,             /* PPR register */
  52         REGSET_DSCR,            /* DSCR register */
  53 #endif
  54 #ifdef CONFIG_PPC_BOOK3S_64
  55         REGSET_TAR,             /* TAR register */
  56         REGSET_EBB,             /* EBB registers */
  57         REGSET_PMR,             /* Performance Monitor Registers */
  58 #endif
  59 #ifdef CONFIG_PPC_MEM_KEYS
  60         REGSET_PKEY,            /* AMR register */
  61 #endif
  62 };
  63
  64 /* ptrace-(no)vsx */
  65
  66 user_regset_get2_fn fpr_get;
  67 int fpr_set(struct task_struct *target, const struct user_regset *regset,
  68             unsigned int pos, unsigned int count,
  69             const void *kbuf, const void __user *ubuf);
  70
  71 /* ptrace-vsx */
  72
  73 int vsr_active(struct task_struct *target, const struct user_regset *regset);
  74 user_regset_get2_fn vsr_get;
  75 int vsr_set(struct task_struct *target, const struct user_regset *regset,
  76             unsigned int pos, unsigned int count,
  77             const void *kbuf, const void __user *ubuf);
  78
  79 /* ptrace-altivec */
  80
  81 int vr_active(struct task_struct *target, const struct user_regset *regset);
  82 user_regset_get2_fn vr_get;
  83 int vr_set(struct task_struct *target, const struct user_regset *regset,
  84            unsigned int pos, unsigned int count,
  85            const void *kbuf, const void __user *ubuf);
  86
  87 /* ptrace-spe */
  88
  89 int evr_active(struct task_struct *target, const struct user_regset *regset);
  90 user_regset_get2_fn evr_get;
  91 int evr_set(struct task_struct *target, const struct user_regset *regset,
  92             unsigned int pos, unsigned int count,
  93             const void *kbuf, const void __user *ubuf);
  94
  95 /* ptrace */
  96
  97 int gpr32_get_common(struct task_struct *target,
  98                      const struct user_regset *regset,
  99                      struct membuf to,
 100                      unsigned long *regs);
 101 int gpr32_set_common(struct task_struct *target,
 102                      const struct user_regset *regset,
 103                      unsigned int pos, unsigned int count,
 104                      const void *kbuf, const void __user *ubuf,
 105                      unsigned long *regs);
 106
 107 /* ptrace-tm */
 108
 109 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
 110 void flush_tmregs_to_thread(struct task_struct *tsk);
 111 #else
 112 static inline void flush_tmregs_to_thread(struct task_struct *tsk) { }
 113 #endif
 114
 115 int tm_cgpr_active(struct task_struct *target, const struct user_regset *regset);
 116 user_regset_get2_fn tm_cgpr_get;
 117 int tm_cgpr_set(struct task_struct *target, const struct user_regset *regset,
 118                 unsigned int pos, unsigned int count,
 119                 const void *kbuf, const void __user *ubuf);
 120 int tm_cfpr_active(struct task_struct *target, const struct user_regset *regset);
 121 user_regset_get2_fn tm_cfpr_get;
 122 int tm_cfpr_set(struct task_struct *target, const struct user_regset *regset,
 123                 unsigned int pos, unsigned int count,
 124                 const void *kbuf, const void __user *ubuf);
 125 int tm_cvmx_active(struct task_struct *target, const struct user_regset *regset);
 126 user_regset_get2_fn tm_cvmx_get;
 127 int tm_cvmx_set(struct task_struct *target, const struct user_regset *regset,
 128                 unsigned int pos, unsigned int count,
 129                 const void *kbuf, const void __user *ubuf);
 130 int tm_cvsx_active(struct task_struct *target, const struct user_regset *regset);
 131 user_regset_get2_fn tm_cvsx_get;
 132 int tm_cvsx_set(struct task_struct *target, const struct user_regset *regset,
 133                 unsigned int pos, unsigned int count,
 134                 const void *kbuf, const void __user *ubuf);
 135 int tm_spr_active(struct task_struct *target, const struct user_regset *regset);
 136 user_regset_get2_fn tm_spr_get;
 137 int tm_spr_set(struct task_struct *target, const struct user_regset *regset,
 138                unsigned int pos, unsigned int count,
 139                const void *kbuf, const void __user *ubuf);
 140 int tm_tar_active(struct task_struct *target, const struct user_regset *regset);
 141 user_regset_get2_fn tm_tar_get;
 142 int tm_tar_set(struct task_struct *target, const struct user_regset *regset,
 143                unsigned int pos, unsigned int count,
 144                const void *kbuf, const void __user *ubuf);
 145 int tm_ppr_active(struct task_struct *target, const struct user_regset *regset);
 146 user_regset_get2_fn tm_ppr_get;
 147 int tm_ppr_set(struct task_struct *target, const struct user_regset *regset,
 148                unsigned int pos, unsigned int count,
 149                const void *kbuf, const void __user *ubuf);
 150 int tm_dscr_active(struct task_struct *target, const struct user_regset *regset);
 151 user_regset_get2_fn tm_dscr_get;
 152 int tm_dscr_set(struct task_struct *target, const struct user_regset *regset,
 153                 unsigned int pos, unsigned int count,
 154                 const void *kbuf, const void __user *ubuf);
 155 user_regset_get2_fn tm_cgpr32_get;
 156 int tm_cgpr32_set(struct task_struct *target, const struct user_regset *regset,
 157                   unsigned int pos, unsigned int count,
 158                   const void *kbuf, const void __user *ubuf);
 159
 160 /* ptrace-view */
 161
 162 int ptrace_get_reg(struct task_struct *task, int regno, unsigned long *data);
 163 int ptrace_put_reg(struct task_struct *task, int regno, unsigned long data);
 164
 165 extern const struct user_regset_view user_ppc_native_view;
 166
 167 /* ptrace-fpu */
 168 #ifdef CONFIG_PPC_FPU_REGS
 169 int ptrace_get_fpr(struct task_struct *child, int index, unsigned long *data);
 170 int ptrace_put_fpr(struct task_struct *child, int index, unsigned long data);
 171 #else
 172 static inline int
 173 ptrace_get_fpr(struct task_struct *child, int index, unsigned long *data)
 174 {
 175         return -EIO;
 176 }
 177
 178 static inline int
 179 ptrace_put_fpr(struct task_struct *child, int index, unsigned long data)
 180 {
 181         return -EIO;
 182 }
 183 #endif
 184
 185 /* ptrace-(no)adv */
 186 void ppc_gethwdinfo(struct ppc_debug_info *dbginfo);
 187 int ptrace_get_debugreg(struct task_struct *child, unsigned long addr,
 188                         unsigned long __user *datalp);
 189 int ptrace_set_debugreg(struct task_struct *task, unsigned long addr, unsigned long data);
 190 long ppc_set_hwdebug(struct task_struct *child, struct ppc_hw_breakpoint *bp_info);
 191 long ppc_del_hwdebug(struct task_struct *child, long data);