mirror of
https://github.com/torvalds/linux.git
synced 2024-12-28 22:02:28 +00:00
0975904276
When the IOMMU stays enabled the BIOS may not be able to finish the machine shutdown properly. So disable the hardware on shutdown. Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
40 lines
1.4 KiB
C
40 lines
1.4 KiB
C
/*
|
|
* Copyright (C) 2007-2008 Advanced Micro Devices, Inc.
|
|
* Author: Joerg Roedel <joerg.roedel@amd.com>
|
|
* Leo Duran <leo.duran@amd.com>
|
|
*
|
|
* 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_H
|
|
#define _ASM_X86_AMD_IOMMU_H
|
|
|
|
#include <linux/irqreturn.h>
|
|
|
|
#ifdef CONFIG_AMD_IOMMU
|
|
extern int amd_iommu_init(void);
|
|
extern int amd_iommu_init_dma_ops(void);
|
|
extern void amd_iommu_detect(void);
|
|
extern irqreturn_t amd_iommu_int_handler(int irq, void *data);
|
|
extern void amd_iommu_flush_all_domains(void);
|
|
extern void amd_iommu_flush_all_devices(void);
|
|
extern void amd_iommu_shutdown(void);
|
|
#else
|
|
static inline int amd_iommu_init(void) { return -ENODEV; }
|
|
static inline void amd_iommu_detect(void) { }
|
|
static inline void amd_iommu_shutdown(void) { }
|
|
#endif
|
|
|
|
#endif /* _ASM_X86_AMD_IOMMU_H */
|