Commit e73b7afe authored by Joerg Roedel's avatar Joerg Roedel
Browse files

iommu/omap: Move data structures to omap-iommu.h 



The internal data-structures are scattered over various
header and C files. Consolidate them in omap-iommu.h.

While at this, add the kerneldoc comment for the missing
iommu domain variable and revise the iommu_arch_data name.

Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
[s-anna@ti.com: revise kerneldoc comments]
Signed-off-by: default avatarSuman Anna <s-anna@ti.com>
Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent 49a57ef7

drivers/iommu/omap-iommu.c

+0 −16
Original line number Diff line number Diff line
@@ -42,22 +42,6 @@ 
/* bitmap of the page sizes currently supported */

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



/**

 * struct omap_iommu_domain - omap iommu domain

 * @pgtable:	the page table

 * @iommu_dev:	an omap iommu device attached to this domain. only a single

 *		iommu device can be attached for now.

 * @dev:	Device using this domain.

 * @lock:	domain lock, should be taken when attaching/detaching

 */

struct omap_iommu_domain {

	u32 *pgtable;

	struct omap_iommu *iommu_dev;

	struct device *dev;

	spinlock_t lock;

	struct iommu_domain domain;

};



#define MMU_LOCK_BASE_SHIFT	10

#define MMU_LOCK_BASE_MASK	(0x1f << MMU_LOCK_BASE_SHIFT)

#define MMU_LOCK_BASE(x)	\

drivers/iommu/omap-iommu.h

+33 −0
Original line number Diff line number Diff line
@@ -14,6 +14,7 @@ 
#define _OMAP_IOMMU_H



#include <linux/bitops.h>

#include <linux/iommu.h>



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

	for (__i = 0;							\
@@ -27,6 +28,23 @@ struct iotlb_entry { 
	u32 endian, elsz, mixed;

};



/**

 * struct omap_iommu_domain - omap iommu domain

 * @pgtable:	the page table

 * @iommu_dev:	an omap iommu device attached to this domain. only a single

 *		iommu device can be attached for now.

 * @dev:	Device using this domain.

 * @lock:	domain lock, should be taken when attaching/detaching

 * @domain:	generic domain handle used by iommu core code

 */

struct omap_iommu_domain {

	u32 *pgtable;

	struct omap_iommu *iommu_dev;

	struct device *dev;

	spinlock_t lock;

	struct iommu_domain domain;

};



struct omap_iommu {

	const char	*name;

	void __iomem	*regbase;
@@ -52,6 +70,21 @@ struct omap_iommu { 
	u32 id;

};



/**

 * struct omap_iommu_arch_data - omap iommu private data

 * @name: name of the iommu device

 * @iommu_dev: handle of the iommu device

 *

 * This is an omap iommu private data object, which binds an iommu user

 * to its iommu device. This object should be placed at the iommu user's

 * dev_archdata so generic IOMMU API can be used without having to

 * utilize omap-specific plumbing anymore.

 */

struct omap_iommu_arch_data {

	const char *name;

	struct omap_iommu *iommu_dev;

};



struct cr_regs {

	u32 cam;

	u32 ram;

include/linux/platform_data/iommu-omap.h

+0 −17
Original line number Diff line number Diff line
@@ -12,23 +12,6 @@ 


#include <linux/platform_device.h>



#define MMU_REG_SIZE		256



/**

 * struct iommu_arch_data - omap iommu private data

 * @name: name of the iommu device

 * @iommu_dev: handle of the iommu device

 *

 * This is an omap iommu private data object, which binds an iommu user

 * to its iommu device. This object should be placed at the iommu user's

 * dev_archdata so generic IOMMU API can be used without having to

 * utilize omap-specific plumbing anymore.

 */

struct omap_iommu_arch_data {

	const char *name;

	struct omap_iommu *iommu_dev;

};



struct iommu_platform_data {

	const char *reset_name;

	int (*assert_reset)(struct platform_device *pdev, const char *name);

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