omap-iommu.c File Reference

#include <linux/err.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/clk.h>
#include <linux/platform_device.h>
#include <linux/iommu.h>
#include <linux/mutex.h>
#include <linux/spinlock.h>
#include <asm/cacheflush.h>
#include <plat/iommu.h>
#include <plat/iopgtable.h>

Go to the source code of this file.

Data Structures
struct	omap_iommu_domain

Macros
#define	for_each_iotlb_cr(obj, n, __i, cr)
#define	OMAP_IOMMU_PGSIZES   (SZ_4K | SZ_64K | SZ_1M | SZ_16M)

Functions
int	omap_install_iommu_arch (const struct iommu_functions *ops)
	EXPORT_SYMBOL_GPL (omap_install_iommu_arch)
void	omap_uninstall_iommu_arch (const struct iommu_functions *ops)
	EXPORT_SYMBOL_GPL (omap_uninstall_iommu_arch)
void	omap_iommu_save_ctx (struct device *dev)
	EXPORT_SYMBOL_GPL (omap_iommu_save_ctx)
void	omap_iommu_restore_ctx (struct device *dev)
	EXPORT_SYMBOL_GPL (omap_iommu_restore_ctx)
u32	omap_iommu_arch_version (void)
	EXPORT_SYMBOL_GPL (omap_iommu_arch_version)
void	omap_iotlb_cr_to_e (struct cr_regs *cr, struct iotlb_entry *e)
	EXPORT_SYMBOL_GPL (omap_iotlb_cr_to_e)
int	omap_iopgtable_store_entry (struct omap_iommu *obj, struct iotlb_entry *e)
	EXPORT_SYMBOL_GPL (omap_iopgtable_store_entry)

: name of target omap iommu device
omap_iommu_attach() - attach iommu device to an iommu domain : page table
	subsys_initcall (omap_iommu_init)
	module_exit (omap_iommu_exit)
	MODULE_DESCRIPTION ("omap iommu: tlb and pagetable primitives")
	MODULE_ALIAS ("platform:omap-iommu")
	MODULE_AUTHOR ("Hiroshi DOYU, Paul Mundt and Toshihiro Kobayashi")
	MODULE_LICENSE ("GPL v2")

Macro Definition Documentation

#define for_each_iotlb_cr	(		obj,
			n,
			__i,
			cr
	)

Value:

for (__i = 0;                           \
         (__i < (n)) && (cr = __iotlb_read_cr((obj), __i), true);   \
         __i++)

Definition at line 31 of file omap-iommu.c.

#define OMAP_IOMMU_PGSIZES   (SZ_4K | SZ_64K | SZ_1M | SZ_16M)

Definition at line 37 of file omap-iommu.c.

Function Documentation

EXPORT_SYMBOL_GPL

(

omap_install_iommu_arch

)

EXPORT_SYMBOL_GPL

(

omap_uninstall_iommu_arch

)

EXPORT_SYMBOL_GPL

(

omap_iommu_save_ctx

)

EXPORT_SYMBOL_GPL

(

omap_iommu_restore_ctx

)

EXPORT_SYMBOL_GPL

(

omap_iommu_arch_version

)

EXPORT_SYMBOL_GPL

(

omap_iotlb_cr_to_e

)

EXPORT_SYMBOL_GPL

(

omap_iopgtable_store_entry

)

MODULE_ALIAS

(

"platform:omap-iommu"

)

MODULE_AUTHOR	(	"Hiroshi	DOYU,
		Paul Mundt and Toshihiro Kobayashi"
	)

MODULE_DESCRIPTION

(

"omap iommu: tlb and pagetable primitives"

)

module_exit

(

omap_iommu_exit

)

MODULE_LICENSE

(

"GPL v2"

)

int omap_install_iommu_arch

(

const struct iommu_functions *

ops

)

omap_install_iommu_arch - Install archtecure specific iommu functions : a pointer to architecture specific iommu functions

There are several kind of iommu algorithm(tlb, pagetable) among omap series. This interface installs such an iommu algorighm.

Definition at line 67 of file omap-iommu.c.

u32 omap_iommu_arch_version

(

void

)

omap_iommu_arch_version - Return running iommu arch version

Definition at line 119 of file omap-iommu.c.

void omap_iommu_restore_ctx

(

struct device *

dev

)

omap_iommu_restore_ctx - Restore registers for pm off-mode support : client device

Definition at line 108 of file omap-iommu.c.

void omap_iommu_save_ctx

(

struct device *

dev

)

omap_iommu_save_ctx - Save registers for pm off-mode support : client device

Definition at line 96 of file omap-iommu.c.

int omap_iopgtable_store_entry	(	struct omap_iommu *	obj,
		struct iotlb_entry *	e
	)

omap_iopgtable_store_entry - Make an iommu pte entry : target iommu : an iommu tlb entry info

Definition at line 649 of file omap-iommu.c.

void omap_iotlb_cr_to_e	(	struct cr_regs *	cr,
		struct iotlb_entry *	e
	)

Definition at line 158 of file omap-iommu.c.

void omap_uninstall_iommu_arch

(

const struct iommu_functions *

ops

)

omap_uninstall_iommu_arch - Uninstall archtecure specific iommu functions : a pointer to architecture specific iommu functions

This interface uninstalls the iommu algorighm installed previously.

Definition at line 83 of file omap-iommu.c.

subsys_initcall

(

omap_iommu_init

)