iommu_common.h File Reference

#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/scatterlist.h>
#include <linux/device.h>
#include <linux/iommu-helper.h>
#include <asm/iommu.h>
#include <asm/scatterlist.h>

Go to the source code of this file.

Macros
#define	IO_PAGE_SHIFT   13
#define	IO_PAGE_SIZE   (1UL << IO_PAGE_SHIFT)
#define	IO_PAGE_MASK   (~(IO_PAGE_SIZE-1))
#define	IO_PAGE_ALIGN(addr)   ALIGN(addr, IO_PAGE_SIZE)
#define	IO_TSB_ENTRIES   (128*1024)
#define	IO_TSB_SIZE   (IO_TSB_ENTRIES * 8)
#define	IOMMU_PAGE_SHIFT   13
#define	SG_ENT_PHYS_ADDRESS(SG)   (__pa(sg_virt((SG))))

Functions
unsigned long	iommu_range_alloc (struct device *dev, struct iommu *iommu, unsigned long npages, unsigned long *handle)
void	iommu_range_free (struct iommu *iommu, dma_addr_t dma_addr, unsigned long npages)

Macro Definition Documentation

#define IO_PAGE_ALIGN

(

addr

)

ALIGN(addr, IO_PAGE_SIZE)

Definition at line 26 of file iommu_common.h.

#define IO_PAGE_MASK   (~(IO_PAGE_SIZE-1))

Definition at line 25 of file iommu_common.h.

#define IO_PAGE_SHIFT   13

Definition at line 23 of file iommu_common.h.

#define IO_PAGE_SIZE   (1UL << IO_PAGE_SHIFT)

Definition at line 24 of file iommu_common.h.

#define IO_TSB_ENTRIES   (128*1024)

Definition at line 28 of file iommu_common.h.

#define IO_TSB_SIZE   (IO_TSB_ENTRIES * 8)

Definition at line 29 of file iommu_common.h.

#define IOMMU_PAGE_SHIFT   13

Definition at line 34 of file iommu_common.h.

#define SG_ENT_PHYS_ADDRESS

(

SG

)

(__pa(sg_virt((SG))))

Definition at line 36 of file iommu_common.h.

Function Documentation

unsigned long iommu_range_alloc	(	struct device *	dev,
		struct iommu *	iommu,
		unsigned long	npages,
		unsigned long *	handle
	)

Definition at line 96 of file iommu.c.

void iommu_range_free	(	struct iommu *	iommu,
		dma_addr_t	dma_addr,
		unsigned long	npages
	)

Definition at line 167 of file iommu.c.