From 2fb3ec5c9503ba8874e24170de2b40e8f1a58370 Mon Sep 17 00:00:00 2001 From: Russell King Date: Wed, 11 May 2011 16:06:29 +0100 Subject: ARM: Replace platform definition of ISA_DMA_THRESHOLD/MAX_DMA_ADDRESS The values of ISA_DMA_THRESHOLD and MAX_DMA_ADDRESS are related; one is the physical/bus address, the other is the virtual address. Both need to be kept in step, so rather than having platforms define both, allow them to define a single macro which sets both of these macros appropraitely. Acked-by: Nicolas Pitre Acked-by: Catalin Marinas Signed-off-by: Russell King --- arch/arm/mach-davinci/include/mach/memory.h | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) (limited to 'arch/arm/mach-davinci/include') diff --git a/arch/arm/mach-davinci/include/mach/memory.h b/arch/arm/mach-davinci/include/mach/memory.h index 78822723f38..8d27246cca4 100644 --- a/arch/arm/mach-davinci/include/mach/memory.h +++ b/arch/arm/mach-davinci/include/mach/memory.h @@ -59,8 +59,7 @@ __arch_adjust_zones(unsigned long *size, unsigned long *holes) #define arch_adjust_zones(zone_size, holes) \ if ((meminfo.bank[0].size >> 20) > 128) __arch_adjust_zones(zone_size, holes) -#define ISA_DMA_THRESHOLD (PHYS_OFFSET + (128<<20) - 1) -#define MAX_DMA_ADDRESS (PAGE_OFFSET + (128<<20)) +#define ARM_DMA_ZONE_SIZE SZ_128M #endif -- cgit v1.2.3 From be20902ba67de70b38c995903321f4152dee57b7 Mon Sep 17 00:00:00 2001 From: Russell King Date: Wed, 11 May 2011 15:39:00 +0100 Subject: ARM: use ARM_DMA_ZONE_SIZE to adjust the zone sizes Rather than each platform providing its own function to adjust the zone sizes, use the new ARM_DMA_ZONE_SIZE definition to perform this adjustment. This ensures that the actual DMA zone size and the ISA_DMA_THRESHOLD/MAX_DMA_ADDRESS definitions are consistent with each other, and moves this complexity out of the platform code. Acked-by: Nicolas Pitre Acked-by: Catalin Marinas Signed-off-by: Russell King --- arch/arm/mach-davinci/include/mach/memory.h | 15 --------------- 1 file changed, 15 deletions(-) (limited to 'arch/arm/mach-davinci/include') diff --git a/arch/arm/mach-davinci/include/mach/memory.h b/arch/arm/mach-davinci/include/mach/memory.h index 8d27246cca4..491249ef209 100644 --- a/arch/arm/mach-davinci/include/mach/memory.h +++ b/arch/arm/mach-davinci/include/mach/memory.h @@ -41,26 +41,11 @@ */ #define CONSISTENT_DMA_SIZE (14<<20) -#ifndef __ASSEMBLY__ /* * Restrict DMA-able region to workaround silicon bug. The bug * restricts buffers available for DMA to video hardware to be * below 128M */ -static inline void -__arch_adjust_zones(unsigned long *size, unsigned long *holes) -{ - unsigned int sz = (128<<20) >> PAGE_SHIFT; - - size[1] = size[0] - sz; - size[0] = sz; -} - -#define arch_adjust_zones(zone_size, holes) \ - if ((meminfo.bank[0].size >> 20) > 128) __arch_adjust_zones(zone_size, holes) - #define ARM_DMA_ZONE_SIZE SZ_128M -#endif - #endif /* __ASM_ARCH_MEMORY_H */ -- cgit v1.2.3