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9702a046c2
CONFIG_* switches should not be exposed in uapi headers. The macros that are defined here are also only useful for the kernel code, so let's move them to asm/cmpxchg.h instead. The only two files that are using these macros are the headers arch/ia64/include/asm/bitops.h and arch/ia64/include/asm/atomic.h and these include asm/cmpxchg.h via asm/intrinsics.h, so this movement should not cause any trouble. Link: https://lkml.kernel.org/r/20230426065032.517693-1-thuth@redhat.com Signed-off-by: Thomas Huth <thuth@redhat.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
34 lines
1.0 KiB
C
34 lines
1.0 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_IA64_CMPXCHG_H
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#define _ASM_IA64_CMPXCHG_H
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#include <uapi/asm/cmpxchg.h>
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#define arch_xchg(ptr, x) \
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({(__typeof__(*(ptr))) __arch_xchg((unsigned long) (x), (ptr), sizeof(*(ptr)));})
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#define arch_cmpxchg(ptr, o, n) cmpxchg_acq((ptr), (o), (n))
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#define arch_cmpxchg64(ptr, o, n) cmpxchg_acq((ptr), (o), (n))
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#define arch_cmpxchg_local arch_cmpxchg
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#define arch_cmpxchg64_local arch_cmpxchg64
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#ifdef CONFIG_IA64_DEBUG_CMPXCHG
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# define CMPXCHG_BUGCHECK_DECL int _cmpxchg_bugcheck_count = 128;
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# define CMPXCHG_BUGCHECK(v) \
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do { \
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if (_cmpxchg_bugcheck_count-- <= 0) { \
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void *ip; \
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extern int _printk(const char *fmt, ...); \
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ip = (void *) ia64_getreg(_IA64_REG_IP); \
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_printk("CMPXCHG_BUGCHECK: stuck at %p on word %p\n", ip, (v));\
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break; \
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} \
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} while (0)
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#else /* !CONFIG_IA64_DEBUG_CMPXCHG */
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# define CMPXCHG_BUGCHECK_DECL
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# define CMPXCHG_BUGCHECK(v)
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#endif /* !CONFIG_IA64_DEBUG_CMPXCHG */
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#endif /* _ASM_IA64_CMPXCHG_H */
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