Florian Fainelli 1f761b3e67 MIPS: Allow modules to set board_be_handler
After making the brcmstb_gisb driver modular with 707a4cdf86e5 ("bus:
brcmstb_gisb: Allow building as module") Guenter reported that mips
allmodconfig failed to link because board_be_handler was referenced.

Thomas indicated that if we were to continue making the brcmstb_gisb
driver modular for MIPS we would need to introduce a function that
allows setting the board_be_handler and export that function towards
modules.

This is what is being done here: board_be_handler is made static and is
now settable with a mips_set_be_handler() function which is exported.

Reported-by: Guenter Roeck <linux@roeck-us.net>
Suggested-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Fixes: 707a4cdf86e5 ("bus: brcmstb_gisb: Allow building as module")
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2021-11-09 16:07:26 +01:00

43 lines
1.2 KiB
C

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Trap handling definitions.
*
* Copyright (C) 2002, 2003 Maciej W. Rozycki
*/
#ifndef _ASM_TRAPS_H
#define _ASM_TRAPS_H
/*
* Possible status responses for a board_be_handler backend.
*/
#define MIPS_BE_DISCARD 0 /* return with no action */
#define MIPS_BE_FIXUP 1 /* return to the fixup code */
#define MIPS_BE_FATAL 2 /* treat as an unrecoverable error */
extern void (*board_be_init)(void);
void mips_set_be_handler(int (*handler)(struct pt_regs *reg, int is_fixup));
extern void (*board_nmi_handler_setup)(void);
extern void (*board_ejtag_handler_setup)(void);
extern void (*board_bind_eic_interrupt)(int irq, int regset);
extern void (*board_ebase_setup)(void);
extern void (*board_cache_error_setup)(void);
extern int register_nmi_notifier(struct notifier_block *nb);
extern void reserve_exception_space(phys_addr_t addr, unsigned long size);
extern char except_vec_nmi[];
#define VECTORSPACING 0x100 /* for EI/VI mode */
#define nmi_notifier(fn, pri) \
({ \
static struct notifier_block fn##_nb = { \
.notifier_call = fn, \
.priority = pri \
}; \
\
register_nmi_notifier(&fn##_nb); \
})
#endif /* _ASM_TRAPS_H */