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47 lines
1.0 KiB
C
47 lines
1.0 KiB
C
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/*
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* Copyright (c) 2022, Artinchip Technology Co., Ltd
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef IO_H__
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#define IO_H__
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#include "aic_common.h"
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static inline void __raw_writeb(u8 val, volatile void *addr)
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{
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asm volatile("sb %0, 0(%1)" : : "r"(val), "r"(addr));
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}
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static inline u8 __raw_readb(const volatile void *addr)
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{
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u8 val;
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asm volatile("lb %0, 0(%1)" : "=r"(val) : "r"(addr));
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return val;
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}
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static inline void __raw_writel(u32 val, volatile void *addr)
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{
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asm volatile("sw %0, 0(%1)" : : "r"(val), "r"(addr));
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}
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static inline u32 __raw_readl(const volatile void *addr)
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{
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u32 val;
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asm volatile("lw %0, 0(%1)" : "=r"(val) : "r"(addr));
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return val;
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}
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#define mmiowb_set_pending() \
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do { \
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} while (0)
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#define __io_br() do { } while (0)
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#define __io_ar(v) __asm__ __volatile__("fence i,r" : : : "memory");
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#define __io_bw() __asm__ __volatile__("fence w,o" : : : "memory");
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#define __io_aw() mmiowb_set_pending()
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#endif // AIC_CONFIG_H__
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