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 flush_tmregs_to_thread(struct task_struct * tsk)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); 184