mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-12 19:06:40 +07:00
8978b74253
This IOMMU helper function doesn't work for some architectures: http://marc.info/?l=linux-kernel&m=121699304403202&w=2 It also breaks POWER and SPARC builds: http://marc.info/?l=linux-kernel&m=121730388001890&w=2 Currently, only x86 IOMMUs use this so let's move it to x86 for now. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Ingo Molnar <mingo@elte.hu>
46 lines
1.0 KiB
C
46 lines
1.0 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 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
|