Commit c2c460f7 authored by Hideki EIRAKU's avatar Hideki EIRAKU Committed by Joerg Roedel
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iommu/shmobile: Add iommu driver for Renesas IPMMU modules 



This is the Renesas IPMMU driver and IOMMU API implementation.

The IPMMU module supports the MMU function and the PMB function.  The
MMU function provides address translation by pagetable compatible with
ARMv6.  The PMB function provides address translation including
tile-linear translation.  This patch implements the MMU function.

The iommu driver does not register a platform driver directly because:
- the register space of the MMU function and the PMB function
  have a common register (used for settings flush), so they should ideally
  have a way to appropriately share this register.
- the MMU function uses the IOMMU API while the PMB function does not.
- the two functions may be used independently.

Signed-off-by: default avatarHideki EIRAKU <hdk@igel.co.jp>
Signed-off-by: default avatarJoerg Roedel <joro@8bytes.org>
parent 88b62b91

drivers/iommu/Kconfig

+74 −0
Original line number Diff line number Diff line
@@ -187,4 +187,78 @@ config EXYNOS_IOMMU_DEBUG 


	  Say N unless you need kernel log message for IOMMU debugging



config SHMOBILE_IPMMU

	bool



config SHMOBILE_IPMMU_TLB

	bool



config SHMOBILE_IOMMU

	bool "IOMMU for Renesas IPMMU/IPMMUI"

	default n

	depends on (ARM && ARCH_SHMOBILE)

	select IOMMU_API

	select ARM_DMA_USE_IOMMU

	select SHMOBILE_IPMMU

	select SHMOBILE_IPMMU_TLB

	help

	  Support for Renesas IPMMU/IPMMUI. This option enables

	  remapping of DMA memory accesses from all of the IP blocks

	  on the ICB.



	  Warning: Drivers (including userspace drivers of UIO

	  devices) of the IP blocks on the ICB *must* use addresses

	  allocated from the IPMMU (iova) for DMA with this option

	  enabled.



	  If unsure, say N.



choice

	prompt "IPMMU/IPMMUI address space size"

	default SHMOBILE_IOMMU_ADDRSIZE_2048MB

	depends on SHMOBILE_IOMMU

	help

	  This option sets IPMMU/IPMMUI address space size by

	  adjusting the 1st level page table size. The page table size

	  is calculated as follows:



	      page table size = number of page table entries * 4 bytes

	      number of page table entries = address space size / 1 MiB



	  For example, when the address space size is 2048 MiB, the

	  1st level page table size is 8192 bytes.



	config SHMOBILE_IOMMU_ADDRSIZE_2048MB

		bool "2 GiB"



	config SHMOBILE_IOMMU_ADDRSIZE_1024MB

		bool "1 GiB"



	config SHMOBILE_IOMMU_ADDRSIZE_512MB

		bool "512 MiB"



	config SHMOBILE_IOMMU_ADDRSIZE_256MB

		bool "256 MiB"



	config SHMOBILE_IOMMU_ADDRSIZE_128MB

		bool "128 MiB"



	config SHMOBILE_IOMMU_ADDRSIZE_64MB

		bool "64 MiB"



	config SHMOBILE_IOMMU_ADDRSIZE_32MB

		bool "32 MiB"



endchoice



config SHMOBILE_IOMMU_L1SIZE

	int

	default 8192 if SHMOBILE_IOMMU_ADDRSIZE_2048MB

	default 4096 if SHMOBILE_IOMMU_ADDRSIZE_1024MB

	default 2048 if SHMOBILE_IOMMU_ADDRSIZE_512MB

	default 1024 if SHMOBILE_IOMMU_ADDRSIZE_256MB

	default 512 if SHMOBILE_IOMMU_ADDRSIZE_128MB

	default 256 if SHMOBILE_IOMMU_ADDRSIZE_64MB

	default 128 if SHMOBILE_IOMMU_ADDRSIZE_32MB



endif # IOMMU_SUPPORT

drivers/iommu/Makefile

+2 −0
Original line number Diff line number Diff line
@@ -13,3 +13,5 @@ obj-$(CONFIG_OMAP_IOMMU_DEBUG) += omap-iommu-debug.o 
obj-$(CONFIG_TEGRA_IOMMU_GART) += tegra-gart.o

obj-$(CONFIG_TEGRA_IOMMU_SMMU) += tegra-smmu.o

obj-$(CONFIG_EXYNOS_IOMMU) += exynos-iommu.o

obj-$(CONFIG_SHMOBILE_IOMMU) += shmobile-iommu.o

obj-$(CONFIG_SHMOBILE_IPMMU) += shmobile-ipmmu.o

drivers/iommu/shmobile-iommu.c

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Original line number Diff line number Diff line 
/*

 * IOMMU for IPMMU/IPMMUI

 * Copyright (C) 2012  Hideki EIRAKU

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; version 2 of the License.

 */



#include <linux/dma-mapping.h>

#include <linux/io.h>

#include <linux/iommu.h>

#include <linux/platform_device.h>

#include <linux/sizes.h>

#include <linux/slab.h>

#include <asm/dma-iommu.h>

#include "shmobile-ipmmu.h"



#define L1_SIZE CONFIG_SHMOBILE_IOMMU_L1SIZE

#define L1_LEN (L1_SIZE / 4)

#define L1_ALIGN L1_SIZE

#define L2_SIZE SZ_1K

#define L2_LEN (L2_SIZE / 4)

#define L2_ALIGN L2_SIZE



struct shmobile_iommu_domain_pgtable {

	uint32_t *pgtable;

	dma_addr_t handle;

};



struct shmobile_iommu_archdata {

	struct list_head attached_list;

	struct dma_iommu_mapping *iommu_mapping;

	spinlock_t attach_lock;

	struct shmobile_iommu_domain *attached;

	int num_attached_devices;

	struct shmobile_ipmmu *ipmmu;

};



struct shmobile_iommu_domain {

	struct shmobile_iommu_domain_pgtable l1, l2[L1_LEN];

	spinlock_t map_lock;

	spinlock_t attached_list_lock;

	struct list_head attached_list;

};



static struct shmobile_iommu_archdata *ipmmu_archdata;

static struct kmem_cache *l1cache, *l2cache;



static int pgtable_alloc(struct shmobile_iommu_domain_pgtable *pgtable,

			 struct kmem_cache *cache, size_t size)

{

	pgtable->pgtable = kmem_cache_zalloc(cache, GFP_ATOMIC);

	if (!pgtable->pgtable)

		return -ENOMEM;

	pgtable->handle = dma_map_single(NULL, pgtable->pgtable, size,

					 DMA_TO_DEVICE);

	return 0;

}



static void pgtable_free(struct shmobile_iommu_domain_pgtable *pgtable,

			 struct kmem_cache *cache, size_t size)

{

	dma_unmap_single(NULL, pgtable->handle, size, DMA_TO_DEVICE);

	kmem_cache_free(cache, pgtable->pgtable);

}



static uint32_t pgtable_read(struct shmobile_iommu_domain_pgtable *pgtable,

			     unsigned int index)

{

	return pgtable->pgtable[index];

}



static void pgtable_write(struct shmobile_iommu_domain_pgtable *pgtable,

			  unsigned int index, unsigned int count, uint32_t val)

{

	unsigned int i;



	for (i = 0; i < count; i++)

		pgtable->pgtable[index + i] = val;

	dma_sync_single_for_device(NULL, pgtable->handle + index * sizeof(val),

				   sizeof(val) * count, DMA_TO_DEVICE);

}



static int shmobile_iommu_domain_init(struct iommu_domain *domain)

{

	struct shmobile_iommu_domain *sh_domain;

	int i, ret;



	sh_domain = kmalloc(sizeof(*sh_domain), GFP_KERNEL);

	if (!sh_domain)

		return -ENOMEM;

	ret = pgtable_alloc(&sh_domain->l1, l1cache, L1_SIZE);

	if (ret < 0) {

		kfree(sh_domain);

		return ret;

	}

	for (i = 0; i < L1_LEN; i++)

		sh_domain->l2[i].pgtable = NULL;

	spin_lock_init(&sh_domain->map_lock);

	spin_lock_init(&sh_domain->attached_list_lock);

	INIT_LIST_HEAD(&sh_domain->attached_list);

	domain->priv = sh_domain;

	return 0;

}



static void shmobile_iommu_domain_destroy(struct iommu_domain *domain)

{

	struct shmobile_iommu_domain *sh_domain = domain->priv;

	int i;



	for (i = 0; i < L1_LEN; i++) {

		if (sh_domain->l2[i].pgtable)

			pgtable_free(&sh_domain->l2[i], l2cache, L2_SIZE);

	}

	pgtable_free(&sh_domain->l1, l1cache, L1_SIZE);

	kfree(sh_domain);

	domain->priv = NULL;

}



static int shmobile_iommu_attach_device(struct iommu_domain *domain,

					struct device *dev)

{

	struct shmobile_iommu_archdata *archdata = dev->archdata.iommu;

	struct shmobile_iommu_domain *sh_domain = domain->priv;

	int ret = -EBUSY;



	if (!archdata)

		return -ENODEV;

	spin_lock(&sh_domain->attached_list_lock);

	spin_lock(&archdata->attach_lock);

	if (archdata->attached != sh_domain) {

		if (archdata->attached)

			goto err;

		ipmmu_tlb_set(archdata->ipmmu, sh_domain->l1.handle, L1_SIZE,

			      0);

		ipmmu_tlb_flush(archdata->ipmmu);

		archdata->attached = sh_domain;

		archdata->num_attached_devices = 0;

		list_add(&archdata->attached_list, &sh_domain->attached_list);

	}

	archdata->num_attached_devices++;

	ret = 0;

err:

	spin_unlock(&archdata->attach_lock);

	spin_unlock(&sh_domain->attached_list_lock);

	return ret;

}



static void shmobile_iommu_detach_device(struct iommu_domain *domain,

					 struct device *dev)

{

	struct shmobile_iommu_archdata *archdata = dev->archdata.iommu;

	struct shmobile_iommu_domain *sh_domain = domain->priv;



	if (!archdata)

		return;

	spin_lock(&sh_domain->attached_list_lock);

	spin_lock(&archdata->attach_lock);

	archdata->num_attached_devices--;

	if (!archdata->num_attached_devices) {

		ipmmu_tlb_set(archdata->ipmmu, 0, 0, 0);

		ipmmu_tlb_flush(archdata->ipmmu);

		archdata->attached = NULL;

		list_del(&archdata->attached_list);

	}

	spin_unlock(&archdata->attach_lock);

	spin_unlock(&sh_domain->attached_list_lock);

}



static void domain_tlb_flush(struct shmobile_iommu_domain *sh_domain)

{

	struct shmobile_iommu_archdata *archdata;



	spin_lock(&sh_domain->attached_list_lock);

	list_for_each_entry(archdata, &sh_domain->attached_list, attached_list)

		ipmmu_tlb_flush(archdata->ipmmu);

	spin_unlock(&sh_domain->attached_list_lock);

}



static int l2alloc(struct shmobile_iommu_domain *sh_domain,

		   unsigned int l1index)

{

	int ret;



	if (!sh_domain->l2[l1index].pgtable) {

		ret = pgtable_alloc(&sh_domain->l2[l1index], l2cache, L2_SIZE);

		if (ret < 0)

			return ret;

	}

	pgtable_write(&sh_domain->l1, l1index, 1,

		      sh_domain->l2[l1index].handle | 0x1);

	return 0;

}



static void l2realfree(struct shmobile_iommu_domain_pgtable *l2)

{

	if (l2->pgtable)

		pgtable_free(l2, l2cache, L2_SIZE);

}



static void l2free(struct shmobile_iommu_domain *sh_domain,

		   unsigned int l1index,

		   struct shmobile_iommu_domain_pgtable *l2)

{

	pgtable_write(&sh_domain->l1, l1index, 1, 0);

	if (sh_domain->l2[l1index].pgtable) {

		*l2 = sh_domain->l2[l1index];

		sh_domain->l2[l1index].pgtable = NULL;

	}

}



static int shmobile_iommu_map(struct iommu_domain *domain, unsigned long iova,

			      phys_addr_t paddr, size_t size, int prot)

{

	struct shmobile_iommu_domain_pgtable l2 = { .pgtable = NULL };

	struct shmobile_iommu_domain *sh_domain = domain->priv;

	unsigned int l1index, l2index;

	int ret;



	l1index = iova >> 20;

	switch (size) {

	case SZ_4K:

		l2index = (iova >> 12) & 0xff;

		spin_lock(&sh_domain->map_lock);

		ret = l2alloc(sh_domain, l1index);

		if (!ret)

			pgtable_write(&sh_domain->l2[l1index], l2index, 1,

				      paddr | 0xff2);

		spin_unlock(&sh_domain->map_lock);

		break;

	case SZ_64K:

		l2index = (iova >> 12) & 0xf0;

		spin_lock(&sh_domain->map_lock);

		ret = l2alloc(sh_domain, l1index);

		if (!ret)

			pgtable_write(&sh_domain->l2[l1index], l2index, 0x10,

				      paddr | 0xff1);

		spin_unlock(&sh_domain->map_lock);

		break;

	case SZ_1M:

		spin_lock(&sh_domain->map_lock);

		l2free(sh_domain, l1index, &l2);

		pgtable_write(&sh_domain->l1, l1index, 1, paddr | 0xc02);

		spin_unlock(&sh_domain->map_lock);

		ret = 0;

		break;

	default:

		ret = -EINVAL;

	}

	if (!ret)

		domain_tlb_flush(sh_domain);

	l2realfree(&l2);

	return ret;

}



static size_t shmobile_iommu_unmap(struct iommu_domain *domain,

				   unsigned long iova, size_t size)

{

	struct shmobile_iommu_domain_pgtable l2 = { .pgtable = NULL };

	struct shmobile_iommu_domain *sh_domain = domain->priv;

	unsigned int l1index, l2index;

	uint32_t l2entry = 0;

	size_t ret = 0;



	l1index = iova >> 20;

	if (!(iova & 0xfffff) && size >= SZ_1M) {

		spin_lock(&sh_domain->map_lock);

		l2free(sh_domain, l1index, &l2);

		spin_unlock(&sh_domain->map_lock);

		ret = SZ_1M;

		goto done;

	}

	l2index = (iova >> 12) & 0xff;

	spin_lock(&sh_domain->map_lock);

	if (sh_domain->l2[l1index].pgtable)

		l2entry = pgtable_read(&sh_domain->l2[l1index], l2index);

	switch (l2entry & 3) {

	case 1:

		if (l2index & 0xf)

			break;

		pgtable_write(&sh_domain->l2[l1index], l2index, 0x10, 0);

		ret = SZ_64K;

		break;

	case 2:

		pgtable_write(&sh_domain->l2[l1index], l2index, 1, 0);

		ret = SZ_4K;

		break;

	}

	spin_unlock(&sh_domain->map_lock);

done:

	if (ret)

		domain_tlb_flush(sh_domain);

	l2realfree(&l2);

	return ret;

}



static phys_addr_t shmobile_iommu_iova_to_phys(struct iommu_domain *domain,

					       unsigned long iova)

{

	struct shmobile_iommu_domain *sh_domain = domain->priv;

	uint32_t l1entry = 0, l2entry = 0;

	unsigned int l1index, l2index;



	l1index = iova >> 20;

	l2index = (iova >> 12) & 0xff;

	spin_lock(&sh_domain->map_lock);

	if (sh_domain->l2[l1index].pgtable)

		l2entry = pgtable_read(&sh_domain->l2[l1index], l2index);

	else

		l1entry = pgtable_read(&sh_domain->l1, l1index);

	spin_unlock(&sh_domain->map_lock);

	switch (l2entry & 3) {

	case 1:

		return (l2entry & ~0xffff) | (iova & 0xffff);

	case 2:

		return (l2entry & ~0xfff) | (iova & 0xfff);

	default:

		if ((l1entry & 3) == 2)

			return (l1entry & ~0xfffff) | (iova & 0xfffff);

		return 0;

	}

}



static int find_dev_name(struct shmobile_ipmmu *ipmmu, const char *dev_name)

{

	unsigned int i, n = ipmmu->num_dev_names;



	for (i = 0; i < n; i++) {

		if (strcmp(ipmmu->dev_names[i], dev_name) == 0)

			return 1;

	}

	return 0;

}



static int shmobile_iommu_add_device(struct device *dev)

{

	struct shmobile_iommu_archdata *archdata = ipmmu_archdata;

	struct dma_iommu_mapping *mapping;



	if (!find_dev_name(archdata->ipmmu, dev_name(dev)))

		return 0;

	mapping = archdata->iommu_mapping;

	if (!mapping) {

		mapping = arm_iommu_create_mapping(&platform_bus_type, 0,

						   L1_LEN << 20, 0);

		if (IS_ERR(mapping))

			return PTR_ERR(mapping);

		archdata->iommu_mapping = mapping;

	}

	dev->archdata.iommu = archdata;

	if (arm_iommu_attach_device(dev, mapping))

		pr_err("arm_iommu_attach_device failed\n");

	return 0;

}



static struct iommu_ops shmobile_iommu_ops = {

	.domain_init = shmobile_iommu_domain_init,

	.domain_destroy = shmobile_iommu_domain_destroy,

	.attach_dev = shmobile_iommu_attach_device,

	.detach_dev = shmobile_iommu_detach_device,

	.map = shmobile_iommu_map,

	.unmap = shmobile_iommu_unmap,

	.iova_to_phys = shmobile_iommu_iova_to_phys,

	.add_device = shmobile_iommu_add_device,

	.pgsize_bitmap = SZ_1M | SZ_64K | SZ_4K,

};



int ipmmu_iommu_init(struct shmobile_ipmmu *ipmmu)

{

	static struct shmobile_iommu_archdata *archdata;



	l1cache = kmem_cache_create("shmobile-iommu-pgtable1", L1_SIZE,

				    L1_ALIGN, SLAB_HWCACHE_ALIGN, NULL);

	if (!l1cache)

		return -ENOMEM;

	l2cache = kmem_cache_create("shmobile-iommu-pgtable2", L2_SIZE,

				    L2_ALIGN, SLAB_HWCACHE_ALIGN, NULL);

	if (!l2cache) {

		kmem_cache_destroy(l1cache);

		return -ENOMEM;

	}

	archdata = kmalloc(sizeof(*archdata), GFP_KERNEL);

	if (!archdata) {

		kmem_cache_destroy(l1cache);

		kmem_cache_destroy(l2cache);

		return -ENOMEM;

	}

	spin_lock_init(&archdata->attach_lock);

	archdata->attached = NULL;

	archdata->ipmmu = ipmmu;

	ipmmu_archdata = archdata;

	bus_set_iommu(&platform_bus_type, &shmobile_iommu_ops);

	return 0;

}

drivers/iommu/shmobile-ipmmu.c

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Original line number Diff line number Diff line 
/*

 * IPMMU/IPMMUI

 * Copyright (C) 2012  Hideki EIRAKU

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; version 2 of the License.

 */



#include <linux/err.h>

#include <linux/export.h>

#include <linux/io.h>

#include <linux/platform_device.h>

#include <linux/slab.h>

#include <linux/platform_data/sh_ipmmu.h>

#include "shmobile-ipmmu.h"



#define IMCTR1 0x000

#define IMCTR2 0x004

#define IMASID 0x010

#define IMTTBR 0x014

#define IMTTBCR 0x018



#define IMCTR1_TLBEN (1 << 0)

#define IMCTR1_FLUSH (1 << 1)



static void ipmmu_reg_write(struct shmobile_ipmmu *ipmmu, unsigned long reg_off,

			    unsigned long data)

{

	iowrite32(data, ipmmu->ipmmu_base + reg_off);

}



void ipmmu_tlb_flush(struct shmobile_ipmmu *ipmmu)

{

	if (!ipmmu)

		return;



	mutex_lock(&ipmmu->flush_lock);

	if (ipmmu->tlb_enabled)

		ipmmu_reg_write(ipmmu, IMCTR1, IMCTR1_FLUSH | IMCTR1_TLBEN);

	else

		ipmmu_reg_write(ipmmu, IMCTR1, IMCTR1_FLUSH);

	mutex_unlock(&ipmmu->flush_lock);

}



void ipmmu_tlb_set(struct shmobile_ipmmu *ipmmu, unsigned long phys, int size,

		   int asid)

{

	if (!ipmmu)

		return;



	mutex_lock(&ipmmu->flush_lock);

	switch (size) {

	default:

		ipmmu->tlb_enabled = 0;

		break;

	case 0x2000:

		ipmmu_reg_write(ipmmu, IMTTBCR, 1);

		ipmmu->tlb_enabled = 1;

		break;

	case 0x1000:

		ipmmu_reg_write(ipmmu, IMTTBCR, 2);

		ipmmu->tlb_enabled = 1;

		break;

	case 0x800:

		ipmmu_reg_write(ipmmu, IMTTBCR, 3);

		ipmmu->tlb_enabled = 1;

		break;

	case 0x400:

		ipmmu_reg_write(ipmmu, IMTTBCR, 4);

		ipmmu->tlb_enabled = 1;

		break;

	case 0x200:

		ipmmu_reg_write(ipmmu, IMTTBCR, 5);

		ipmmu->tlb_enabled = 1;

		break;

	case 0x100:

		ipmmu_reg_write(ipmmu, IMTTBCR, 6);

		ipmmu->tlb_enabled = 1;

		break;

	case 0x80:

		ipmmu_reg_write(ipmmu, IMTTBCR, 7);

		ipmmu->tlb_enabled = 1;

		break;

	}

	ipmmu_reg_write(ipmmu, IMTTBR, phys);

	ipmmu_reg_write(ipmmu, IMASID, asid);

	mutex_unlock(&ipmmu->flush_lock);

}



static int ipmmu_probe(struct platform_device *pdev)

{

	struct shmobile_ipmmu *ipmmu;

	struct resource *res;

	struct shmobile_ipmmu_platform_data *pdata = pdev->dev.platform_data;



	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);

	if (!res) {

		dev_err(&pdev->dev, "cannot get platform resources\n");

		return -ENOENT;

	}

	ipmmu = devm_kzalloc(&pdev->dev, sizeof(*ipmmu), GFP_KERNEL);

	if (!ipmmu) {

		dev_err(&pdev->dev, "cannot allocate device data\n");

		return -ENOMEM;

	}

	mutex_init(&ipmmu->flush_lock);

	ipmmu->dev = &pdev->dev;

	ipmmu->ipmmu_base = devm_ioremap_nocache(&pdev->dev, res->start,

						resource_size(res));

	if (!ipmmu->ipmmu_base) {

		dev_err(&pdev->dev, "ioremap_nocache failed\n");

		return -ENOMEM;

	}

	ipmmu->dev_names = pdata->dev_names;

	ipmmu->num_dev_names = pdata->num_dev_names;

	platform_set_drvdata(pdev, ipmmu);

	ipmmu_reg_write(ipmmu, IMCTR1, 0x0); /* disable TLB */

	ipmmu_reg_write(ipmmu, IMCTR2, 0x0); /* disable PMB */

	ipmmu_iommu_init(ipmmu);

	return 0;

}



static struct platform_driver ipmmu_driver = {

	.probe = ipmmu_probe,

	.driver = {

		.owner = THIS_MODULE,

		.name = "ipmmu",

	},

};



static int __init ipmmu_init(void)

{

	return platform_driver_register(&ipmmu_driver);

}

subsys_initcall(ipmmu_init);

drivers/iommu/shmobile-ipmmu.h

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Original line number Diff line number Diff line 
/* shmobile-ipmmu.h

 *

 * Copyright (C) 2012  Hideki EIRAKU

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation; version 2 of the License.

 */



#ifndef __SHMOBILE_IPMMU_H__

#define __SHMOBILE_IPMMU_H__



struct shmobile_ipmmu {

	struct device *dev;

	void __iomem *ipmmu_base;

	int tlb_enabled;

	struct mutex flush_lock;

	const char * const *dev_names;

	unsigned int num_dev_names;

};



#ifdef CONFIG_SHMOBILE_IPMMU_TLB

void ipmmu_tlb_flush(struct shmobile_ipmmu *ipmmu);

void ipmmu_tlb_set(struct shmobile_ipmmu *ipmmu, unsigned long phys, int size,

		   int asid);

int ipmmu_iommu_init(struct shmobile_ipmmu *ipmmu);

#else

static inline int ipmmu_iommu_init(struct shmobile_ipmmu *ipmmu)

{

	return -EINVAL;

}

#endif



#endif /* __SHMOBILE_IPMMU_H__ */

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