#include <linux/pci.h>
#include <linux/io.h>
#include <linux/gfp.h>
#include <linux/export.h>

Functions
void	devm_ioremap_release (struct device dev, void res)

void __iomem *	devm_ioremap (struct device *dev, resource_size_t offset, unsigned long size)

	EXPORT_SYMBOL (devm_ioremap)

void __iomem *	devm_ioremap_nocache (struct device *dev, resource_size_t offset, unsigned long size)

	EXPORT_SYMBOL (devm_ioremap_nocache)

void	devm_iounmap (struct device dev, void __iomem addr)

	EXPORT_SYMBOL (devm_iounmap)

void __iomem *	devm_request_and_ioremap (struct device dev, struct resource res)

	EXPORT_SYMBOL (devm_request_and_ioremap)

Function Documentation

void __iomem* devm_ioremap	(	struct device *	dev,
		resource_size_t	offset,
		unsigned long	size
	)

devm_ioremap - Managed ioremap() : Generic device to remap IO address for : BUS offset to map : Size of map

Managed ioremap(). Map is automatically unmapped on driver detach.

Definition at line 24 of file devres.c.

void __iomem* devm_ioremap_nocache	(	struct device *	dev,
		resource_size_t	offset,
		unsigned long	size
	)

devm_ioremap_nocache - Managed ioremap_nocache() : Generic device to remap IO address for : BUS offset to map : Size of map

Managed ioremap_nocache(). Map is automatically unmapped on driver detach.

Definition at line 53 of file devres.c.

void devm_ioremap_release	(	struct device *	dev,
		void *	res
	)

Definition at line 6 of file devres.c.

void devm_iounmap	(	struct device *	dev,
		void __iomem *	addr
	)

devm_iounmap - Managed iounmap() : Generic device to unmap for : Address to unmap

Managed iounmap(). must have been mapped using devm_ioremap*().

Definition at line 80 of file devres.c.

void __iomem* devm_request_and_ioremap	(	struct device *	dev,
		struct resource *	res
	)

devm_request_and_ioremap() - Check, request region, and ioremap resource : Generic device to handle the resource for : resource to be handled

Takes all necessary steps to ioremap a mem resource. Uses managed device, so everything is undone on driver detach. Checks arguments, so you can feed it the result from e.g. platform_get_resource() directly. Returns the remapped pointer or NULL on error. Usage example:

res = platform_get_resource(pdev, IORESOURCE_MEM, 0); base = devm_request_and_ioremap(&pdev->dev, res); if (!base) return -EADDRNOTAVAIL;

Definition at line 103 of file devres.c.

EXPORT_SYMBOL ( devm_ioremap )

EXPORT_SYMBOL ( devm_ioremap_nocache )

EXPORT_SYMBOL ( devm_iounmap )

EXPORT_SYMBOL ( devm_request_and_ioremap )

Functions

Function Documentation