Orange Pi5 kernel

/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _ASM_POWERPC_BUG_H
#define _ASM_POWERPC_BUG_H
#ifdef __KERNEL__
 
#include <asm/asm-compat.h>
 
#ifdef CONFIG_BUG
 
#ifdef __ASSEMBLY__
#include <asm/asm-offsets.h>
#ifdef CONFIG_DEBUG_BUGVERBOSE
.macro EMIT_BUG_ENTRY addr,file,line,flags
<------> .section __bug_table,"aw"
5001:	 PPC_LONG \addr, 5002f
<------> .short \line, \flags
<------> .org 5001b+BUG_ENTRY_SIZE
<------> .previous
<------> .section .rodata,"a"
5002:	 .asciz "\file"
<------> .previous
.endm
#else
.macro EMIT_BUG_ENTRY addr,file,line,flags
<------> .section __bug_table,"aw"
5001:	 PPC_LONG \addr
<------> .short \flags
<------> .org 5001b+BUG_ENTRY_SIZE
<------> .previous
.endm
#endif /* verbose */
 
#else /* !__ASSEMBLY__ */
/* _EMIT_BUG_ENTRY expects args %0,%1,%2,%3 to be FILE, LINE, flags and
   sizeof(struct bug_entry), respectively */
#ifdef CONFIG_DEBUG_BUGVERBOSE
#define _EMIT_BUG_ENTRY				\
<------>".section __bug_table,\"aw\"\n"		\
<------>"2:\t" PPC_LONG "1b, %0\n"		\
<------>"\t.short %1, %2\n"			\
<------>".org 2b+%3\n"				\
<------>".previous\n"
#else
#define _EMIT_BUG_ENTRY				\
<------>".section __bug_table,\"aw\"\n"		\
<------>"2:\t" PPC_LONG "1b\n"			\
<------>"\t.short %2\n"				\
<------>".org 2b+%3\n"				\
<------>".previous\n"
#endif
 
#define BUG_ENTRY(insn, flags, ...)			\
<------>__asm__ __volatile__(				\
<------><------>"1:	" insn "\n"			\
<------><------>_EMIT_BUG_ENTRY				\
<------><------>: : "i" (__FILE__), "i" (__LINE__),	\
<------><------>  "i" (flags),				\
<------><------>  "i" (sizeof(struct bug_entry)),	\
<------><------>  ##__VA_ARGS__)
 
/*
 * BUG_ON() and WARN_ON() do their best to cooperate with compile-time
 * optimisations. However depending on the complexity of the condition
 * some compiler versions may not produce optimal results.
 */
 
#define BUG() do {						\
<------>BUG_ENTRY("twi 31, 0, 0", 0);				\
<------>unreachable();						\
} while (0)
 
#define BUG_ON(x) do {						\
<------>if (__builtin_constant_p(x)) {				\
<------><------>if (x)						\
<------><------><------>BUG();					\
<------>} else {						\
<------><------>BUG_ENTRY(PPC_TLNEI " %4, 0", 0, "r" ((__force long)(x)));	\
<------>}							\
} while (0)
 
#define __WARN_FLAGS(flags) BUG_ENTRY("twi 31, 0, 0", BUGFLAG_WARNING | (flags))
 
#define WARN_ON(x) ({						\
<------>int __ret_warn_on = !!(x);				\
<------>if (__builtin_constant_p(__ret_warn_on)) {		\
<------><------>if (__ret_warn_on)				\
<------><------><------>__WARN();				\
<------>} else {						\
<------><------>BUG_ENTRY(PPC_TLNEI " %4, 0",			\
<------><------><------>  BUGFLAG_WARNING | BUGFLAG_TAINT(TAINT_WARN),	\
<------><------><------>  "r" (__ret_warn_on));	\
<------>}							\
<------>unlikely(__ret_warn_on);				\
})
 
#define HAVE_ARCH_BUG
#define HAVE_ARCH_BUG_ON
#define HAVE_ARCH_WARN_ON
#endif /* __ASSEMBLY __ */
#else
#ifdef __ASSEMBLY__
.macro EMIT_BUG_ENTRY addr,file,line,flags
.endm
#else /* !__ASSEMBLY__ */
#define _EMIT_BUG_ENTRY
#endif
#endif /* CONFIG_BUG */
 
#include <asm-generic/bug.h>
 
#ifndef __ASSEMBLY__
 
struct pt_regs;
extern int do_page_fault(struct pt_regs *, unsigned long, unsigned long);
extern void bad_page_fault(struct pt_regs *, unsigned long, int);
extern void _exception(int, struct pt_regs *, int, unsigned long);
extern void _exception_pkey(struct pt_regs *, unsigned long, int);
extern void die(const char *, struct pt_regs *, long);
extern bool die_will_crash(void);
extern void panic_flush_kmsg_start(void);
extern void panic_flush_kmsg_end(void);
#endif /* !__ASSEMBLY__ */
 
#endif /* __KERNEL__ */
#endif /* _ASM_POWERPC_BUG_H */