linux-imx

/*

 * Copyright (C) 2009-2010 Advanced Micro Devices, Inc.

 * Author: Joerg Roedel <jroedel@suse.de>

 *

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

 * under the terms of the GNU General Public License version 2 as published

 * by the Free Software Foundation.

 *

 * This program is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with this program; if not, write to the Free Software

 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA

 */

​

#ifndef _ASM_X86_AMD_IOMMU_PROTO_H

#define _ASM_X86_AMD_IOMMU_PROTO_H

​

#include "amd_iommu_types.h"

​

extern int amd_iommu_get_num_iommus(void);

extern int amd_iommu_init_dma_ops(void);

extern int amd_iommu_init_passthrough(void);

extern irqreturn_t amd_iommu_int_thread(int irq, void *data);

extern irqreturn_t amd_iommu_int_handler(int irq, void *data);

extern void amd_iommu_apply_erratum_63(u16 devid);

extern void amd_iommu_reset_cmd_buffer(struct amd_iommu *iommu);

extern int amd_iommu_init_devices(void);

extern void amd_iommu_uninit_devices(void);

extern void amd_iommu_init_notifier(void);

extern int amd_iommu_init_api(void);

​

#ifdef CONFIG_AMD_IOMMU_DEBUGFS

void amd_iommu_debugfs_setup(struct amd_iommu *iommu);

#else

static inline void amd_iommu_debugfs_setup(struct amd_iommu *iommu) {}

#endif

​

/* Needed for interrupt remapping */

extern int amd_iommu_prepare(void);

extern int amd_iommu_enable(void);

extern void amd_iommu_disable(void);

extern int amd_iommu_reenable(int);

extern int amd_iommu_enable_faulting(void);

extern int amd_iommu_guest_ir;

​

/* IOMMUv2 specific functions */

struct iommu_domain;

​

extern bool amd_iommu_v2_supported(void);

extern int amd_iommu_register_ppr_notifier(struct notifier_block *nb);

extern int amd_iommu_unregister_ppr_notifier(struct notifier_block *nb);

extern void amd_iommu_domain_direct_map(struct iommu_domain *dom);

extern int amd_iommu_domain_enable_v2(struct iommu_domain *dom, int pasids);

extern int amd_iommu_flush_page(struct iommu_domain *dom, int pasid,

                u64 address);

extern int amd_iommu_flush_tlb(struct iommu_domain *dom, int pasid);

extern int amd_iommu_domain_set_gcr3(struct iommu_domain *dom, int pasid,

                     unsigned long cr3);

extern int amd_iommu_domain_clear_gcr3(struct iommu_domain *dom, int pasid);