afa9fdc2f5
This patch against tip/x86/iommu virtually reverts
2842e5bf31. But just reverting the
commit breaks AMD IOMMU so this patch also includes some fixes.
The above commit adds new two options to x86 IOMMU generic kernel boot
options, fullflush and nofullflush. But such change that affects all
the IOMMUs needs more discussion (all IOMMU parties need the chance to
discuss it):
http://lkml.org/lkml/2008/9/19/106
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
47 lines
1.1 KiB
C
47 lines
1.1 KiB
C
#ifndef _ASM_X8664_IOMMU_H
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#define _ASM_X8664_IOMMU_H 1
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extern void pci_iommu_shutdown(void);
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extern void no_iommu_init(void);
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extern struct dma_mapping_ops nommu_dma_ops;
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extern int force_iommu, no_iommu;
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extern int iommu_detected;
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extern int dmar_disabled;
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extern unsigned long iommu_num_pages(unsigned long addr, unsigned long len);
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#ifdef CONFIG_GART_IOMMU
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extern int gart_iommu_aperture;
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extern int gart_iommu_aperture_allowed;
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extern int gart_iommu_aperture_disabled;
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extern void early_gart_iommu_check(void);
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extern void gart_iommu_init(void);
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extern void gart_iommu_shutdown(void);
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extern void __init gart_parse_options(char *);
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extern void gart_iommu_hole_init(void);
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#else
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#define gart_iommu_aperture 0
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#define gart_iommu_aperture_allowed 0
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#define gart_iommu_aperture_disabled 1
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static inline void early_gart_iommu_check(void)
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{
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}
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static inline void gart_iommu_init(void)
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{
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}
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static inline void gart_iommu_shutdown(void)
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{
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}
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static inline void gart_parse_options(char *options)
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{
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}
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static inline void gart_iommu_hole_init(void)
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{
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}
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#endif
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#endif
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