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| author | Russell King <rmk@dyn-67.arm.linux.org.uk> | 2008-11-29 11:56:33 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2008-11-29 19:42:34 +0100 |
| commit | c72e005b099302b3c6bee8381396199b77b6dd4f (patch) | |
| tree | 00b12648664fe10d86bcf45348cc348515a10eaa /arch/arm | |
| parent | [ARM] move MAX_DMA_ADDRESS to mach/memory.h (diff) | |
| download | linux-c72e005b099302b3c6bee8381396199b77b6dd4f.tar.xz linux-c72e005b099302b3c6bee8381396199b77b6dd4f.zip | |
[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 <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-h720x/include/mach/memory.h | 2 | ||||
| -rw-r--r-- | arch/arm/mach-s3c2410/include/mach/memory.h | 8 | ||||
| -rw-r--r-- | 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 8cfb665e04b1..c9bdb21a4445 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 2246966bbbe4..6f1e5871ae4b 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 b497a5868b06..c5ab038925d6 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 |