8f8cffd9df
cpu_relax() need to be in asm/vdso/processor.h to be used by the C VDSO generic library. Move it there. Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20201126131006.2431205-2-mpe@ellerman.id.au
24 lines
836 B
C
24 lines
836 B
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#ifndef _ASM_POWERPC_VDSO_PROCESSOR_H
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#define _ASM_POWERPC_VDSO_PROCESSOR_H
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#ifndef __ASSEMBLY__
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/* Macros for adjusting thread priority (hardware multi-threading) */
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#define HMT_very_low() asm volatile("or 31, 31, 31 # very low priority")
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#define HMT_low() asm volatile("or 1, 1, 1 # low priority")
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#define HMT_medium_low() asm volatile("or 6, 6, 6 # medium low priority")
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#define HMT_medium() asm volatile("or 2, 2, 2 # medium priority")
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#define HMT_medium_high() asm volatile("or 5, 5, 5 # medium high priority")
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#define HMT_high() asm volatile("or 3, 3, 3 # high priority")
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#ifdef CONFIG_PPC64
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#define cpu_relax() do { HMT_low(); HMT_medium(); barrier(); } while (0)
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#else
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#define cpu_relax() barrier()
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* _ASM_POWERPC_VDSO_PROCESSOR_H */
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