From a5969cabbb4660eab42b6ef0412cbbd1200cf14d Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Sat, 12 Oct 2024 07:10:09 +0000
Subject: [PATCH] 修改led为gpio
---
kernel/arch/x86/include/asm/dma-mapping.h | 16 ++--------------
1 files changed, 2 insertions(+), 14 deletions(-)
diff --git a/kernel/arch/x86/include/asm/dma-mapping.h b/kernel/arch/x86/include/asm/dma-mapping.h
index ce4d176..bb1654f 100644
--- a/kernel/arch/x86/include/asm/dma-mapping.h
+++ b/kernel/arch/x86/include/asm/dma-mapping.h
@@ -3,24 +3,15 @@
#define _ASM_X86_DMA_MAPPING_H
/*
- * IOMMU interface. See Documentation/DMA-API-HOWTO.txt and
- * Documentation/DMA-API.txt for documentation.
+ * IOMMU interface. See Documentation/core-api/dma-api-howto.rst and
+ * Documentation/core-api/dma-api.rst for documentation.
*/
#include <linux/scatterlist.h>
-#include <linux/dma-debug.h>
#include <asm/io.h>
#include <asm/swiotlb.h>
-#include <linux/dma-contiguous.h>
-
-#ifdef CONFIG_ISA
-# define ISA_DMA_BIT_MASK DMA_BIT_MASK(24)
-#else
-# define ISA_DMA_BIT_MASK DMA_BIT_MASK(32)
-#endif
extern int iommu_merge;
-extern struct device x86_dma_fallback_dev;
extern int panic_on_overflow;
extern const struct dma_map_ops *dma_ops;
@@ -29,8 +20,5 @@
{
return dma_ops;
}
-
-bool arch_dma_alloc_attrs(struct device **dev);
-#define arch_dma_alloc_attrs arch_dma_alloc_attrs
#endif
--
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