From c72e005b099302b3c6bee8381396199b77b6dd4f Mon Sep 17 00:00:00 2001 From: Russell King Date: Sat, 29 Nov 2008 10:56:33 +0000 Subject: [PATCH] [ARM] fix constant values of MAX_DMA_ADDRESS Since 8d5796d2ec6b5a4e7a52861144e63af438d6f8f7, we have allowed PAGE_OFFSET to be configurable, so a constant virtual address for MAX_DMA_ADDRESS is buggy. It should be defined in terms of PAGE_OFFSET rather than a constant virtual address. Signed-off-by: Russell King --- arch/arm/mach-h720x/include/mach/memory.h | 2 +- arch/arm/mach-s3c2410/include/mach/memory.h | 8 -------- arch/arm/mach-shark/include/mach/memory.h | 2 +- 3 files changed, 2 insertions(+), 10 deletions(-) diff --git a/arch/arm/mach-h720x/include/mach/memory.h b/arch/arm/mach-h720x/include/mach/memory.h index 8cfb665e04b..c9bdb21a444 100644 --- a/arch/arm/mach-h720x/include/mach/memory.h +++ b/arch/arm/mach-h720x/include/mach/memory.h @@ -16,6 +16,6 @@ * If you set this, you must also set ISA_DMA_THRESHOLD and setup a DMA * zone if this does not cover all possible RAM. */ -#define MAX_DMA_ADDRESS 0xd0000000 +#define MAX_DMA_ADDRESS (PAGE_OFFSET + SZ_256M) #endif diff --git a/arch/arm/mach-s3c2410/include/mach/memory.h b/arch/arm/mach-s3c2410/include/mach/memory.h index 2246966bbbe..6f1e5871ae4 100644 --- a/arch/arm/mach-s3c2410/include/mach/memory.h +++ b/arch/arm/mach-s3c2410/include/mach/memory.h @@ -13,12 +13,4 @@ #define PHYS_OFFSET UL(0x30000000) -/* - * This is the maximum DMA address(physical address) that can be DMAd to. - * Err, no, this is a virtual address. And you must set ISA_DMA_THRESHOLD - * and setup a DMA zone if this restricts the amount of RAM which is - * capable of DMA. - */ -#define MAX_DMA_ADDRESS 0x40000000 - #endif diff --git a/arch/arm/mach-shark/include/mach/memory.h b/arch/arm/mach-shark/include/mach/memory.h index b497a5868b0..c5ab038925d 100644 --- a/arch/arm/mach-shark/include/mach/memory.h +++ b/arch/arm/mach-shark/include/mach/memory.h @@ -33,7 +33,7 @@ static inline void __arch_adjust_zones(int node, unsigned long *zone_size, unsig __arch_adjust_zones(node, size, holes) #define ISA_DMA_THRESHOLD (PHYS_OFFSET + SZ_4M - 1) -#define MAX_DMA_ADDRESS 0xC0400000 +#define MAX_DMA_ADDRESS (PAGE_OFFSET + SZ_4M) #endif -- 2.41.1