ia64/xen-unstable

view xen/drivers/passthrough/vtd/extern.h @ 19673:f3bed18decfc

[VTD] laying the ground work for ATS

These changes lay the ground work for ATS enabling in Xen. It will be
followed by patch which enables PCI MMCFG which is needed for actual
enabling of ATS functionality.

Signed-off-by: Allen Kay <allen.m.kay@intel.com>
author Keir Fraser <keir.fraser@citrix.com>
date Fri May 29 09:19:30 2009 +0100 (2009-05-29)
parents 115c164721dc
children 42fe00c6f8b4
line source
1 /*
2 * Copyright (c) 2006, Intel Corporation.
3 *
4 * This program is free software; you can redistribute it and/or modify it
5 * under the terms and conditions of the GNU General Public License,
6 * version 2, as published by the Free Software Foundation.
7 *
8 * This program is distributed in the hope it will be useful, but WITHOUT
9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
11 * more details.
12 *
13 * You should have received a copy of the GNU General Public License along with
14 * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
15 * Place - Suite 330, Boston, MA 02111-1307 USA.
16 *
17 * Copyright (C) Allen Kay <allen.m.kay@intel.com>
18 * Copyright (C) Weidong Han <weidong.han@intel.com>
19 */
21 #ifndef _VTD_EXTERN_H_
22 #define _VTD_EXTERN_H_
24 #include "dmar.h"
26 extern int qinval_enabled;
27 extern int ats_enabled;
28 extern struct qi_ctrl *qi_ctrl;
29 extern struct ir_ctrl *ir_ctrl;
31 void print_iommu_regs(struct acpi_drhd_unit *drhd);
32 void print_vtd_entries(struct iommu *iommu, int bus, int devfn, u64 gmfn);
33 void dump_iommu_info(unsigned char key);
35 int enable_qinval(struct iommu *iommu);
36 void disable_qinval(struct iommu *iommu);
37 int enable_intremap(struct iommu *iommu);
38 void disable_intremap(struct iommu *iommu);
39 int queue_invalidate_context(struct iommu *iommu,
40 u16 did, u16 source_id, u8 function_mask, u8 granu);
41 int queue_invalidate_iotlb(struct iommu *iommu,
42 u8 granu, u8 dr, u8 dw, u16 did, u8 am, u8 ih, u64 addr);
43 int queue_invalidate_iec(struct iommu *iommu,
44 u8 granu, u8 im, u16 iidx);
45 int invalidate_sync(struct iommu *iommu);
46 int iommu_flush_iec_global(struct iommu *iommu);
47 int iommu_flush_iec_index(struct iommu *iommu, u8 im, u16 iidx);
48 struct iommu * ioapic_to_iommu(unsigned int apic_id);
49 struct acpi_drhd_unit * ioapic_to_drhd(unsigned int apic_id);
50 void clear_fault_bits(struct iommu *iommu);
51 int qinval_device_iotlb(struct iommu *iommu,
52 u32 max_invs_pend, u16 sid, u16 size, u64 addr);
53 struct acpi_drhd_unit * find_ats_dev_drhd(struct iommu *iommu);
55 #endif // _VTD_EXTERN_H_