Unverified Commit 29b79be4 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
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!1148 LoongArch: cleanup swiotlb bakcup buffer related code 

Merge Pull Request from: @Hongchen_Zhang 
 
cleanup swiotlb bakcup buffer related code,not used now. 
 
Link:https://gitee.com/openeuler/kernel/pulls/1148

 

Reviewed-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
Signed-off-by: default avatarJialin Zhang <zhangjialin11@huawei.com>
parents 420dcdfd ffd28a27

arch/loongarch/Kconfig

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Original line number Diff line number Diff line
@@ -113,8 +113,6 @@ config LOONGARCH 
	select MODULES_USE_ELF_RELA if MODULES

	select NEED_PER_CPU_EMBED_FIRST_CHUNK

	select NEED_PER_CPU_PAGE_FIRST_CHUNK

	select DMA_OPS

	select ARCH_HAS_SETUP_DMA_OPS

	select OF

	select OF_EARLY_FLATTREE

	select PCI

arch/loongarch/include/asm/dma-mapping.h

deleted100644 → 0
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Original line number Diff line number Diff line 
/* SPDX-License-Identifier: GPL-2.0 */

/*

 * Copyright (C) 2020 Loongson Technology Corporation Limited

 */

#ifndef _ASM_DMA_MAPPING_H

#define _ASM_DMA_MAPPING_H



extern const struct dma_map_ops loongson_dma_ops;

extern bool swiotlb_need_fix;

extern phys_addr_t io_tlb_start;



static inline const struct dma_map_ops *get_arch_dma_ops(struct bus_type *bus)

{

	if (swiotlb_need_fix)

		return &loongson_dma_ops;

	else

		return NULL;

}



#endif /* _ASM_DMA_MAPPING_H */

arch/loongarch/kernel/dma.c

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