/* * Copyright (C) 2007 Advanced Micro Devices, Inc. * Author: Leo Duran <leo.duran@amd.com> * Author: Wei Wang <wei.wang2@amd.com> - adapted to xen * * 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; either version 2 of the License, or * (at your option) any later version. * * 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_64_AMD_IOMMU_PROTO_H#define _ASM_X86_64_AMD_IOMMU_PROTO_H#include <xen/sched.h>#include <asm/amd-iommu.h>#define for_each_amd_iommu(amd_iommu) \    list_for_each_entry(amd_iommu, \        &amd_iommu_head, list)#define DMA_32BIT_MASK  0x00000000ffffffffULL#define PAGE_ALIGN(addr)    (((addr) + PAGE_SIZE - 1) & PAGE_MASK)#ifdef AMD_IOV_DEBUG#define amd_iov_info(fmt, args...) \    printk(XENLOG_INFO "AMD_IOV: " fmt, ## args)#define amd_iov_warning(fmt, args...) \    printk(XENLOG_WARNING "AMD_IOV: " fmt, ## args)#define amd_iov_error(fmt, args...) \    printk(XENLOG_ERR "AMD_IOV: %s:%d: " fmt, __FILE__ , __LINE__ , ## args)#else#define amd_iov_info(fmt, args...)#define amd_iov_warning(fmt, args...)#define amd_iov_error(fmt, args...)#endif/* amd-iommu-detect functions */int __init amd_iommu_get_ivrs_dev_entries(void);int __init amd_iommu_detect_one_acpi(void *ivhd);int __init amd_iommu_detect_acpi(void);/* amd-iommu-init functions */int __init amd_iommu_init(void);int __init amd_iommu_init_one(struct amd_iommu *iommu);int __init amd_iommu_update_ivrs_mapping_acpi(void);void __init amd_iommu_init_cleanup(void);int __init amd_iommu_setup_shared_tables(void);/* mapping functions */int amd_iommu_map_page(struct domain *d, unsigned long gfn, unsigned long mfn);int amd_iommu_unmap_page(struct domain *d, unsigned long gfn);void *amd_iommu_get_vptr_from_page_table_entry(u32 *entry);int amd_iommu_reserve_domain_unity_map(struct domain *domain,        unsigned long phys_addr, unsigned long size, int iw, int ir);int amd_iommu_sync_p2m(struct domain *d);/* device table functions */void amd_iommu_set_dev_table_entry(u32 *dte, u64 root_ptr, u64 intremap_ptr,        u16 domain_id, u8 sys_mgt, u8 dev_ex, u8 paging_mode);int amd_iommu_is_dte_page_translation_valid(u32 *entry);void invalidate_dev_table_entry(struct amd_iommu *iommu,            u16 devic_id);/* send cmd to iommu */int send_iommu_command(struct amd_iommu *iommu, u32 cmd[]);void flush_command_buffer(struct amd_iommu *iommu);/* find iommu for bdf */struct amd_iommu *find_iommu_for_device(int bus, int devfn);/*interrupt remapping */int __init amd_iommu_setup_intremap_table(void);int __init deallocate_intremap_table(void);void invalidate_interrupt_table(struct amd_iommu *iommu, u16 device_id);void amd_iommu_ioapic_update_ire(    unsigned int apic, unsigned int reg, unsigned int value);void amd_iommu_msi_msg_update_ire(    struct msi_desc *msi_desc, struct msi_msg *msg);static inline u32 get_field_from_reg_u32(u32 reg_value, u32 mask, u32 shift){    u32 field;    field = (reg_value & mask) >> shift;    return field;}static inline u32 set_field_in_reg_u32(u32 field, u32 reg_value,        u32 mask, u32 shift, u32 *reg){    reg_value &= ~mask;    reg_value |= (field << shift) & mask;    if (reg)        *reg = reg_value;    return reg_value;}static inline u8 get_field_from_byte(u8 value, u8 mask, u8 shift){    u8 field;    field = (value & mask) >> shift;    return field;}static inline unsigned long region_to_pages(unsigned long addr, unsigned long size){    return (PAGE_ALIGN(addr + size) - (addr & PAGE_MASK)) >> PAGE_SHIFT;}#endif /* _ASM_X86_64_AMD_IOMMU_PROTO_H */