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ARM: dma-mapping: convert ARCH_HAS_DMA_SET_COHERENT_MASK to kconfig symbol 

The only users of ARCH_HAS_DMA_SET_COHERENT_MASK are 2 ARM platforms:
ixp4xx and pxa cm_x2xx. We've been getting lucky that the define is
implicitly included before dma-mapping.h, but the removal of io.h broke
things (c334bc1 ARM: make mach/io.h include optional). Since memory.h
is the correct place, but no longer exists, convert the define to a
kconfig entry.

Reported-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Rob Herring <rob.herring@calxeda.com>
Acked-by: Nicolas Pitre <nico@linaro.org>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Imre Kaloz <kaloz@openwrt.org>
Cc: Krzysztof Halasa <khc@pm.waw.pl>
Cc: Eric Miao <eric.y.miao@gmail.com>
Acked-by: Haojian Zhuang <haojian.zhuang@marvell.com>
Cc: Vinod Koul <vinod.koul@intel.com>
Cc: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Rob Herring 2012-03-20 14:33:01 -05:00
parent a2a47ca366
commit 58af4a244f
5 changed files with 6 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/arm/Kconfig
View File

@ -180,6 +180,9 @@ config ZONE_DMA
config NEED_DMA_MAP_STATE
def_bool y
config ARCH_HAS_DMA_SET_COHERENT_MASK
bool
config GENERIC_ISA_DMA
bool
@ -547,6 +550,7 @@ config ARCH_IXP2000
config ARCH_IXP4XX
bool "IXP4xx-based"
depends on MMU
select ARCH_HAS_DMA_SET_COHERENT_MASK
select CLKSRC_MMIO
select CPU_XSCALE
select GENERIC_GPIO

2
arch/arm/mach-ixp4xx/include/mach/hardware.h
View File

@ -23,8 +23,6 @@
#define PCIBIOS_MAX_MEM 0x4BFFFFFF
#endif
#define ARCH_HAS_DMA_SET_COHERENT_MASK
/* Register locations and bits */
#include "ixp4xx-regs.h"

1
arch/arm/mach-pxa/Kconfig
View File

@ -108,6 +108,7 @@ config CSB726_CSB701
config MACH_ARMCORE
bool "CompuLab CM-X255/CM-X270 modules"
select ARCH_HAS_DMA_SET_COHERENT_MASK if PCI
select PXA27x
select IWMMXT
select PXA25x

4
arch/arm/mach-pxa/include/mach/hardware.h
View File

@ -337,8 +337,4 @@ extern unsigned int get_memclk_frequency_10khz(void);
extern unsigned long get_clock_tick_rate(void);
#endif
#if defined(CONFIG_MACH_ARMCORE) && defined(CONFIG_PCI)
#define ARCH_HAS_DMA_SET_COHERENT_MASK
#endif
#endif /* _ASM_ARCH_HARDWARE_H */

2
include/linux/dma-mapping.h
View File

@ -77,7 +77,7 @@ static inline u64 dma_get_mask(struct device *dev)
return DMA_BIT_MASK(32);
}
#ifdef ARCH_HAS_DMA_SET_COHERENT_MASK
#ifdef CONFIG_ARCH_HAS_DMA_SET_COHERENT_MASK
int dma_set_coherent_mask(struct device *dev, u64 mask);
#else
static inline int dma_set_coherent_mask(struct device *dev, u64 mask)