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
flush_tmregs_to_thread(struct task_struct * tsk)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 int ptrace_get_fpr(struct task_struct *child, int index, unsigned long *data);
169 int ptrace_put_fpr(struct task_struct *child, int index, unsigned long data);
170
171 /* ptrace-(no)adv */
172 void ppc_gethwdinfo(struct ppc_debug_info *dbginfo);
173 int ptrace_get_debugreg(struct task_struct *child, unsigned long addr,
174 unsigned long __user *datalp);
175 int ptrace_set_debugreg(struct task_struct *task, unsigned long addr, unsigned long data);
176 long ppc_set_hwdebug(struct task_struct *child, struct ppc_hw_breakpoint *bp_info);
177 long ppc_del_hwdebug(struct task_struct *child, long data);
178