linux/arch/arm/include/asm/device.h
Stefano Stabellini 3d5391ac6f arm: introduce is_device_dma_coherent
Introduce a boolean flag and an accessor function to check whether a
device is dma_coherent. Set the flag from set_arch_dma_coherent_ops.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Russell King <linux@arm.linux.org.uk>
2014-12-04 12:41:50 +00:00

38 lines
695 B
C

/*
* Arch specific extensions to struct device
*
* This file is released under the GPLv2
*/
#ifndef ASMARM_DEVICE_H
#define ASMARM_DEVICE_H
struct dev_archdata {
struct dma_map_ops *dma_ops;
#ifdef CONFIG_DMABOUNCE
struct dmabounce_device_info *dmabounce;
#endif
#ifdef CONFIG_IOMMU_API
void *iommu; /* private IOMMU data */
#endif
#ifdef CONFIG_ARM_DMA_USE_IOMMU
struct dma_iommu_mapping *mapping;
#endif
bool dma_coherent;
};
struct omap_device;
struct pdev_archdata {
#ifdef CONFIG_ARCH_OMAP
struct omap_device *od;
#endif
};
#ifdef CONFIG_ARM_DMA_USE_IOMMU
#define to_dma_iommu_mapping(dev) ((dev)->archdata.mapping)
#else
#define to_dma_iommu_mapping(dev) NULL
#endif
#endif