linux/include/asm-x86/iommu.h
Joerg Roedel 2842e5bf31 x86: move GART TLB flushing options to generic code
The GART currently implements the iommu=[no]fullflush command line
parameters which influence its IO/TLB flushing strategy. This patch
makes these parameters generic so that they can be used by the AMD IOMMU
too.

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2008-09-19 12:59:06 +02:00

48 lines
1.1 KiB
C

#ifndef _ASM_X8664_IOMMU_H
#define _ASM_X8664_IOMMU_H 1
extern void pci_iommu_shutdown(void);
extern void no_iommu_init(void);
extern struct dma_mapping_ops nommu_dma_ops;
extern int force_iommu, no_iommu;
extern int iommu_detected;
extern int dmar_disabled;
extern int iommu_fullflush;
extern unsigned long iommu_num_pages(unsigned long addr, unsigned long len);
#ifdef CONFIG_GART_IOMMU
extern int gart_iommu_aperture;
extern int gart_iommu_aperture_allowed;
extern int gart_iommu_aperture_disabled;
extern void early_gart_iommu_check(void);
extern void gart_iommu_init(void);
extern void gart_iommu_shutdown(void);
extern void __init gart_parse_options(char *);
extern void gart_iommu_hole_init(void);
#else
#define gart_iommu_aperture 0
#define gart_iommu_aperture_allowed 0
#define gart_iommu_aperture_disabled 1
static inline void early_gart_iommu_check(void)
{
}
static inline void gart_iommu_init(void)
{
}
static inline void gart_iommu_shutdown(void)
{
}
static inline void gart_parse_options(char *options)
{
}
static inline void gart_iommu_hole_init(void)
{
}
#endif
#endif