pci_iommu.c File Reference

#include <linux/kernel.h>
#include <linux/mm.h>
#include <linux/pci.h>
#include <linux/gfp.h>
#include <linux/bootmem.h>
#include <linux/export.h>
#include <linux/scatterlist.h>
#include <linux/log2.h>
#include <linux/dma-mapping.h>
#include <linux/iommu-helper.h>
#include <asm/io.h>
#include <asm/hwrpb.h>
#include "proto.h"
#include "pci_impl.h"

Go to the source code of this file.

Macros
#define	DEBUG_ALLOC   0
#define	DBGA(args...)
#define	DBGA2(args...)
#define	DEBUG_NODIRECT   0
#define	ISA_DMA_MASK   0x00ffffff
#define	SG_ENT_VIRT_ADDRESS(SG)   (sg_virt((SG)))
#define	SG_ENT_PHYS_ADDRESS(SG)   __pa(SG_ENT_VIRT_ADDRESS(SG))

Functions
unsigned long	size_for_memory (unsigned long max)
struct pci_iommu_arena *__init	iommu_arena_new_node (int nid, struct pci_controller *hose, dma_addr_t base, unsigned long window_size, unsigned long align)
struct pci_iommu_arena *__init	iommu_arena_new (struct pci_controller *hose, dma_addr_t base, unsigned long window_size, unsigned long align)
int	iommu_reserve (struct pci_iommu_arena *arena, long pg_count, long align_mask)
int	iommu_release (struct pci_iommu_arena *arena, long pg_start, long pg_count)
int	iommu_bind (struct pci_iommu_arena *arena, long pg_start, long pg_count, struct page **pages)
int	iommu_unbind (struct pci_iommu_arena *arena, long pg_start, long pg_count)
	EXPORT_SYMBOL (dma_ops)

Variables
struct dma_map_ops	alpha_pci_ops
struct dma_map_ops *	dma_ops = &alpha_pci_ops

Macro Definition Documentation

#define DBGA

(

args...

)

Definition at line 27 of file pci_iommu.c.

#define DBGA2

(

args...

)

Definition at line 32 of file pci_iommu.c.

#define DEBUG_ALLOC   0

Definition at line 23 of file pci_iommu.c.

#define DEBUG_NODIRECT   0

Definition at line 35 of file pci_iommu.c.

#define ISA_DMA_MASK   0x00ffffff

Definition at line 37 of file pci_iommu.c.

#define SG_ENT_PHYS_ADDRESS

(

SG

)

__pa(SG_ENT_VIRT_ADDRESS(SG))

Definition at line 503 of file pci_iommu.c.

#define SG_ENT_VIRT_ADDRESS

(

SG

)

(sg_virt((SG)))

Definition at line 502 of file pci_iommu.c.

Function Documentation

EXPORT_SYMBOL

(

dma_ops

)

struct pci_iommu_arena* __init iommu_arena_new ( struct pci_controller *  hose, dma_addr_t  base, unsigned long  window_size, unsigned long  align  )

read

Definition at line 113 of file pci_iommu.c.

struct pci_iommu_arena* __init iommu_arena_new_node ( int  nid, struct pci_controller *  hose, dma_addr_t  base, unsigned long  window_size, unsigned long  align  )

read

Definition at line 58 of file pci_iommu.c.

int iommu_bind	(	struct pci_iommu_arena *	arena,
		long	pg_start,
		long	pg_count,
		struct page **	pages
	)

Definition at line 898 of file pci_iommu.c.

int iommu_release	(	struct pci_iommu_arena *	arena,
		long	pg_start,
		long	pg_count
	)

Definition at line 879 of file pci_iommu.c.

int iommu_reserve	(	struct pci_iommu_arena *	arena,
		long	pg_count,
		long	align_mask
	)

Definition at line 848 of file pci_iommu.c.

int iommu_unbind	(	struct pci_iommu_arena *	arena,
		long	pg_start,
		long	pg_count
	)

Definition at line 927 of file pci_iommu.c.

unsigned long size_for_memory

(

unsigned long

max

)

Definition at line 49 of file pci_iommu.c.

Variable Documentation

struct dma_map_ops alpha_pci_ops

Initial value:

= {
    .alloc          = alpha_pci_alloc_coherent,
    .free           = alpha_pci_free_coherent,
    .map_page       = alpha_pci_map_page,
    .unmap_page     = alpha_pci_unmap_page,
    .map_sg         = alpha_pci_map_sg,
    .unmap_sg       = alpha_pci_unmap_sg,
    .mapping_error      = alpha_pci_mapping_error,
    .dma_supported      = alpha_pci_supported,
    .set_dma_mask       = alpha_pci_set_mask,
}

Definition at line 956 of file pci_iommu.c.

struct dma_map_ops* dma_ops = &alpha_pci_ops

Definition at line 968 of file pci_iommu.c.