dvma.c File Reference

#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/bitops.h>
#include <linux/mm.h>
#include <linux/bootmem.h>
#include <linux/vmalloc.h>
#include <asm/sun3x.h>
#include <asm/dvma.h>
#include <asm/io.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/pgalloc.h>

Go to the source code of this file.

Macros
#define	IOMMU_ADDR_MASK   0x03ffe000
#define	IOMMU_CACHE_INHIBIT   0x00000040
#define	IOMMU_FULL_BLOCK   0x00000020
#define	IOMMU_MODIFIED   0x00000010
#define	IOMMU_USED   0x00000008
#define	IOMMU_WRITE_PROTECT   0x00000004
#define	IOMMU_DT_MASK   0x00000003
#define	IOMMU_DT_INVALID   0x00000000
#define	IOMMU_DT_VALID   0x00000001
#define	IOMMU_DT_BAD   0x00000002
#define	dvma_entry_paddr(index)   (iommu_pte[index] & IOMMU_ADDR_MASK)
#define	dvma_entry_vaddr(index, paddr)
#define	dvma_entry_set(index, addr)
#define	dvma_entry_clr(index)   (iommu_pte[index] = IOMMU_DT_INVALID)
#define	dvma_entry_hash(addr)

Functions
int	dvma_map_cpu (unsigned long kaddr, unsigned long vaddr, int len)
int	dvma_map_iommu (unsigned long kaddr, unsigned long baddr, int len)
void	dvma_unmap_iommu (unsigned long baddr, int len)

Macro Definition Documentation

#define dvma_entry_clr

(

index

)

(iommu_pte[index] = IOMMU_DT_INVALID)

Definition at line 56 of file dvma.c.

#define dvma_entry_hash

(

addr

)

Value:

((addr >> DVMA_PAGE_SHIFT) ^ \
                     ((addr & 0x03c00000) >>     \
                        (DVMA_PAGE_SHIFT+4)))

Definition at line 57 of file dvma.c.

#define dvma_entry_paddr

(

index

)

(iommu_pte[index] & IOMMU_ADDR_MASK)

Definition at line 44 of file dvma.c.

#define dvma_entry_set	(		index,
			addr
	)

Value:

(iommu_pte[index] =            \
                        (addr & IOMMU_ADDR_MASK) | \
                             IOMMU_DT_VALID)

Definition at line 52 of file dvma.c.

#define dvma_entry_vaddr	(		index,
			paddr
	)

Value:

((index << DVMA_PAGE_SHIFT) |  \
                     (paddr & (DVMA_PAGE_SIZE-1)))

Definition at line 45 of file dvma.c.

#define IOMMU_ADDR_MASK   0x03ffe000

Definition at line 29 of file dvma.c.

#define IOMMU_CACHE_INHIBIT   0x00000040

Definition at line 30 of file dvma.c.

#define IOMMU_DT_BAD   0x00000002

Definition at line 38 of file dvma.c.

#define IOMMU_DT_INVALID   0x00000000

Definition at line 36 of file dvma.c.

#define IOMMU_DT_MASK   0x00000003

Definition at line 35 of file dvma.c.

#define IOMMU_DT_VALID   0x00000001

Definition at line 37 of file dvma.c.

#define IOMMU_FULL_BLOCK   0x00000020

Definition at line 31 of file dvma.c.

#define IOMMU_MODIFIED   0x00000010

Definition at line 32 of file dvma.c.

#define IOMMU_USED   0x00000008

Definition at line 33 of file dvma.c.

#define IOMMU_WRITE_PROTECT   0x00000004

Definition at line 34 of file dvma.c.

Function Documentation

int dvma_map_cpu ( unsigned long  kaddr, unsigned long  vaddr, int  len  )

inline

Definition at line 82 of file dvma.c.

int dvma_map_iommu ( unsigned long  kaddr, unsigned long  baddr, int  len  )

inline

Definition at line 151 of file dvma.c.

void dvma_unmap_iommu	(	unsigned long	baddr,
		int	len
	)

Definition at line 183 of file dvma.c.