1 /* SPDX-License-Identifier: GPL-2.0-only */
5 #define COMPAT_UTS_MACHINE "riscv\0\0"
8 * Architecture specific compatibility types
10 #include <linux/types.h>
11 #include <linux/sched.h>
12 #include <linux/sched/task_stack.h>
13 #include <asm-generic/compat.h>
15 static inline int is_compat_task(void)
17 return test_thread_flag(TIF_32BIT);
20 struct compat_user_regs_struct {
55 static inline void regs_to_cregs(struct compat_user_regs_struct *cregs,
58 cregs->pc = (compat_ulong_t) regs->epc;
59 cregs->ra = (compat_ulong_t) regs->ra;
60 cregs->sp = (compat_ulong_t) regs->sp;
61 cregs->gp = (compat_ulong_t) regs->gp;
62 cregs->tp = (compat_ulong_t) regs->tp;
63 cregs->t0 = (compat_ulong_t) regs->t0;
64 cregs->t1 = (compat_ulong_t) regs->t1;
65 cregs->t2 = (compat_ulong_t) regs->t2;
66 cregs->s0 = (compat_ulong_t) regs->s0;
67 cregs->s1 = (compat_ulong_t) regs->s1;
68 cregs->a0 = (compat_ulong_t) regs->a0;
69 cregs->a1 = (compat_ulong_t) regs->a1;
70 cregs->a2 = (compat_ulong_t) regs->a2;
71 cregs->a3 = (compat_ulong_t) regs->a3;
72 cregs->a4 = (compat_ulong_t) regs->a4;
73 cregs->a5 = (compat_ulong_t) regs->a5;
74 cregs->a6 = (compat_ulong_t) regs->a6;
75 cregs->a7 = (compat_ulong_t) regs->a7;
76 cregs->s2 = (compat_ulong_t) regs->s2;
77 cregs->s3 = (compat_ulong_t) regs->s3;
78 cregs->s4 = (compat_ulong_t) regs->s4;
79 cregs->s5 = (compat_ulong_t) regs->s5;
80 cregs->s6 = (compat_ulong_t) regs->s6;
81 cregs->s7 = (compat_ulong_t) regs->s7;
82 cregs->s8 = (compat_ulong_t) regs->s8;
83 cregs->s9 = (compat_ulong_t) regs->s9;
84 cregs->s10 = (compat_ulong_t) regs->s10;
85 cregs->s11 = (compat_ulong_t) regs->s11;
86 cregs->t3 = (compat_ulong_t) regs->t3;
87 cregs->t4 = (compat_ulong_t) regs->t4;
88 cregs->t5 = (compat_ulong_t) regs->t5;
89 cregs->t6 = (compat_ulong_t) regs->t6;
92 static inline void cregs_to_regs(struct compat_user_regs_struct *cregs,
95 regs->epc = (unsigned long) cregs->pc;
96 regs->ra = (unsigned long) cregs->ra;
97 regs->sp = (unsigned long) cregs->sp;
98 regs->gp = (unsigned long) cregs->gp;
99 regs->tp = (unsigned long) cregs->tp;
100 regs->t0 = (unsigned long) cregs->t0;
101 regs->t1 = (unsigned long) cregs->t1;
102 regs->t2 = (unsigned long) cregs->t2;
103 regs->s0 = (unsigned long) cregs->s0;
104 regs->s1 = (unsigned long) cregs->s1;
105 regs->a0 = (unsigned long) cregs->a0;
106 regs->a1 = (unsigned long) cregs->a1;
107 regs->a2 = (unsigned long) cregs->a2;
108 regs->a3 = (unsigned long) cregs->a3;
109 regs->a4 = (unsigned long) cregs->a4;
110 regs->a5 = (unsigned long) cregs->a5;
111 regs->a6 = (unsigned long) cregs->a6;
112 regs->a7 = (unsigned long) cregs->a7;
113 regs->s2 = (unsigned long) cregs->s2;
114 regs->s3 = (unsigned long) cregs->s3;
115 regs->s4 = (unsigned long) cregs->s4;
116 regs->s5 = (unsigned long) cregs->s5;
117 regs->s6 = (unsigned long) cregs->s6;
118 regs->s7 = (unsigned long) cregs->s7;
119 regs->s8 = (unsigned long) cregs->s8;
120 regs->s9 = (unsigned long) cregs->s9;
121 regs->s10 = (unsigned long) cregs->s10;
122 regs->s11 = (unsigned long) cregs->s11;
123 regs->t3 = (unsigned long) cregs->t3;
124 regs->t4 = (unsigned long) cregs->t4;
125 regs->t5 = (unsigned long) cregs->t5;
126 regs->t6 = (unsigned long) cregs->t6;
129 #endif /* __ASM_COMPAT_H */