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![Masahiro Yamada](/assets/img/avatar_default.png)
All architectures have the same definition for s8/16/32/64 and u8/16/32/64. Factor out the duplicated code into <asm-generic/int-ll64.h>. BTW, Linux unified the kernel space definition into int-ll64.h a few years ago as you see in Linux commit 0c79a8e29b5f ("asm/types.h: Remove include/asm-generic/int-l64.h"). Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
46 lines
1.1 KiB
C
46 lines
1.1 KiB
C
#ifndef __ASM_ARM_TYPES_H
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#define __ASM_ARM_TYPES_H
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#include <asm-generic/int-ll64.h>
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typedef unsigned short umode_t;
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/*
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* These aren't exported outside the kernel to avoid name space clashes
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*/
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#ifdef __KERNEL__
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#ifdef CONFIG_ARM64
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#define BITS_PER_LONG 64
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#else /* CONFIG_ARM64 */
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#define BITS_PER_LONG 32
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#endif /* CONFIG_ARM64 */
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#ifdef CONFIG_PHYS_64BIT
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typedef unsigned long long phys_addr_t;
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typedef unsigned long long phys_size_t;
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#else
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/* DMA addresses are 32-bits wide */
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typedef unsigned long phys_addr_t;
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typedef unsigned long phys_size_t;
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#endif
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/*
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* A dma_addr_t can hold any valid DMA address, i.e., any address returned
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* by the DMA API.
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*
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* If the DMA API only uses 32-bit addresses, dma_addr_t need only be 32
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* bits wide. Bus addresses, e.g., PCI BARs, may be wider than 32 bits,
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* but drivers do memory-mapped I/O to ioremapped kernel virtual addresses,
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* so they don't care about the size of the actual bus addresses.
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*/
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#ifdef CONFIG_DMA_ADDR_T_64BIT
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typedef unsigned long long dma_addr_t;
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#else
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typedef u32 dma_addr_t;
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#endif
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#endif /* __KERNEL__ */
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#endif
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