3d5391ac6f
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>
37 lines
695 B
C
37 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
|