1 /* SPDX-License-Identifier: GPL-2.0 */
2 // Copyright (C) 2017 Arm Ltd.
6 /* Values for sdei_exit_mode */
7 #define SDEI_EXIT_HVC 0
8 #define SDEI_EXIT_SMC 1
10 #define SDEI_STACK_SIZE IRQ_STACK_SIZE
14 #include <linux/linkage.h>
15 #include <linux/preempt.h>
16 #include <linux/types.h>
20 DECLARE_PER_CPU(struct sdei_registered_event *, sdei_active_normal_event);
21 DECLARE_PER_CPU(struct sdei_registered_event *, sdei_active_critical_event);
23 extern unsigned long sdei_exit_mode;
25 /* Software Delegated Exception entry point from firmware*/
26 asmlinkage void __sdei_asm_handler(unsigned long event_num, unsigned long arg,
27 unsigned long pc, unsigned long pstate);
29 /* and its CONFIG_UNMAP_KERNEL_AT_EL0 trampoline */
30 asmlinkage void __sdei_asm_entry_trampoline(unsigned long event_num,
33 unsigned long pstate);
35 /* Abort a running handler. Context is discarded. */
36 void __sdei_handler_abort(void);
39 * The above entry point does the minimum to call C code. This function does
40 * anything else, before calling the driver.
42 struct sdei_registered_event;
43 asmlinkage unsigned long __sdei_handler(struct pt_regs *regs,
44 struct sdei_registered_event *arg);
46 unsigned long do_sdei_event(struct pt_regs *regs,
47 struct sdei_registered_event *arg);
49 unsigned long sdei_arch_get_entry_point(int conduit);
50 #define sdei_arch_get_entry_point(x) sdei_arch_get_entry_point(x)
52 #endif /* __ASSEMBLY__ */
53 #endif /* __ASM_SDEI_H */