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15 lines
398 B
15 lines
398 B
/* SPDX-License-Identifier: GPL-2.0 */ |
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#ifndef _ASM_RISCV_MMIOWB_H |
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#define _ASM_RISCV_MMIOWB_H |
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/* |
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* "o,w" is sufficient to ensure that all writes to the device have completed |
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* before the write to the spinlock is allowed to commit. |
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*/ |
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#define mmiowb() __asm__ __volatile__ ("fence o,w" : : : "memory"); |
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#include <linux/smp.h> |
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#include <asm-generic/mmiowb.h> |
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#endif /* _ASM_RISCV_MMIOWB_H */
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