1 /* SPDX-License-Identifier: GPL-2.0 */
2
3 #ifndef _ASM_RISCV_ENTRY_COMMON_H
4 #define _ASM_RISCV_ENTRY_COMMON_H
5
6 #include <asm/stacktrace.h>
7 #include <asm/thread_info.h>
8 #include <asm/vector.h>
9
10 static inline void arch_exit_to_user_mode_prepare(struct pt_regs *regs,
11 unsigned long ti_work)
12 {
13 if (ti_work & _TIF_RISCV_V_DEFER_RESTORE) {
14 clear_thread_flag(TIF_RISCV_V_DEFER_RESTORE);
15 /*
16 * We are already called with irq disabled, so go without
17 * keeping track of riscv_v_flags.
18 */
19 riscv_v_vstate_restore(¤t->thread.vstate, regs);
20 }
21 }
22
23 #define arch_exit_to_user_mode_prepare arch_exit_to_user_mode_prepare
24
25 void handle_page_fault(struct pt_regs *regs);
26 void handle_break(struct pt_regs *regs);
27
28 #ifdef CONFIG_RISCV_MISALIGNED
29 int handle_misaligned_load(struct pt_regs *regs);
30 int handle_misaligned_store(struct pt_regs *regs);
31 #else
32 static inline int handle_misaligned_load(struct pt_regs *regs)
33 {
34 return -1;
35 }
36 static inline int handle_misaligned_store(struct pt_regs *regs)
37 {
38 return -1;
39 }
40 #endif
41
42 #endif /* _ASM_RISCV_ENTRY_COMMON_H */
43
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.