mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-26 17:01:14 +00:00
53 lines
1.4 KiB
Diff
53 lines
1.4 KiB
Diff
From 48c48c4437603bad79eb848ac03b21a86cc3bb90 Mon Sep 17 00:00:00 2001
|
|
From: popcornmix <popcornmix@gmail.com>
|
|
Date: Thu, 7 Aug 2014 02:03:50 +0100
|
|
Subject: [PATCH 057/114] Revert "ARM: dma: Use dma_pfn_offset for dma address
|
|
translation"
|
|
|
|
This reverts commit 6ce0d20016925d031f1e24d64302e4c976d7cec6.
|
|
---
|
|
arch/arm/include/asm/dma-mapping.h | 18 +-----------------
|
|
1 file changed, 1 insertion(+), 17 deletions(-)
|
|
|
|
--- a/arch/arm/include/asm/dma-mapping.h
|
|
+++ b/arch/arm/include/asm/dma-mapping.h
|
|
@@ -58,37 +58,21 @@ static inline int dma_set_mask(struct de
|
|
#ifndef __arch_pfn_to_dma
|
|
static inline dma_addr_t pfn_to_dma(struct device *dev, unsigned long pfn)
|
|
{
|
|
- if (dev)
|
|
- pfn -= dev->dma_pfn_offset;
|
|
return (dma_addr_t)__pfn_to_bus(pfn);
|
|
}
|
|
|
|
static inline unsigned long dma_to_pfn(struct device *dev, dma_addr_t addr)
|
|
{
|
|
- unsigned long pfn = __bus_to_pfn(addr);
|
|
-
|
|
- if (dev)
|
|
- pfn += dev->dma_pfn_offset;
|
|
-
|
|
- return pfn;
|
|
+ return __bus_to_pfn(addr);
|
|
}
|
|
|
|
static inline void *dma_to_virt(struct device *dev, dma_addr_t addr)
|
|
{
|
|
- if (dev) {
|
|
- unsigned long pfn = dma_to_pfn(dev, addr);
|
|
-
|
|
- return phys_to_virt(__pfn_to_phys(pfn));
|
|
- }
|
|
-
|
|
return (void *)__bus_to_virt((unsigned long)addr);
|
|
}
|
|
|
|
static inline dma_addr_t virt_to_dma(struct device *dev, void *addr)
|
|
{
|
|
- if (dev)
|
|
- return pfn_to_dma(dev, virt_to_pfn(addr));
|
|
-
|
|
return (dma_addr_t)__virt_to_bus((unsigned long)(addr));
|
|
}
|
|
|