forked from mirrors/linux
d3f138106b
Change the CONFIG_DMAR to CONFIG_INTEL_IOMMU to be consistent with the other IOMMU options. Rename the CONFIG_INTR_REMAP to CONFIG_IRQ_REMAP to match the irq subsystem name. And define the CONFIG_DMAR_TABLE for the common ACPI DMAR routines shared by both CONFIG_INTEL_IOMMU and CONFIG_IRQ_REMAP. Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com> Cc: yinghai@kernel.org Cc: youquan.song@intel.com Cc: joerg.roedel@amd.com Cc: tony.luck@intel.com Cc: dwmw2@infradead.org Link: http://lkml.kernel.org/r/20110824001456.558630224@sbsiddha-desk.sc.intel.com Signed-off-by: Ingo Molnar <mingo@elte.hu>
50 lines
1.2 KiB
C
50 lines
1.2 KiB
C
#ifndef _DMA_REMAPPING_H
|
|
#define _DMA_REMAPPING_H
|
|
|
|
/*
|
|
* VT-d hardware uses 4KiB page size regardless of host page size.
|
|
*/
|
|
#define VTD_PAGE_SHIFT (12)
|
|
#define VTD_PAGE_SIZE (1UL << VTD_PAGE_SHIFT)
|
|
#define VTD_PAGE_MASK (((u64)-1) << VTD_PAGE_SHIFT)
|
|
#define VTD_PAGE_ALIGN(addr) (((addr) + VTD_PAGE_SIZE - 1) & VTD_PAGE_MASK)
|
|
|
|
#define VTD_STRIDE_SHIFT (9)
|
|
#define VTD_STRIDE_MASK (((u64)-1) << VTD_STRIDE_SHIFT)
|
|
|
|
#define DMA_PTE_READ (1)
|
|
#define DMA_PTE_WRITE (2)
|
|
#define DMA_PTE_LARGE_PAGE (1 << 7)
|
|
#define DMA_PTE_SNP (1 << 11)
|
|
|
|
#define CONTEXT_TT_MULTI_LEVEL 0
|
|
#define CONTEXT_TT_DEV_IOTLB 1
|
|
#define CONTEXT_TT_PASS_THROUGH 2
|
|
|
|
struct intel_iommu;
|
|
struct dmar_domain;
|
|
struct root_entry;
|
|
|
|
|
|
#ifdef CONFIG_INTEL_IOMMU
|
|
extern void free_dmar_iommu(struct intel_iommu *iommu);
|
|
extern int iommu_calculate_agaw(struct intel_iommu *iommu);
|
|
extern int iommu_calculate_max_sagaw(struct intel_iommu *iommu);
|
|
extern int dmar_disabled;
|
|
#else
|
|
static inline int iommu_calculate_agaw(struct intel_iommu *iommu)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline int iommu_calculate_max_sagaw(struct intel_iommu *iommu)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline void free_dmar_iommu(struct intel_iommu *iommu)
|
|
{
|
|
}
|
|
#define dmar_disabled (1)
|
|
#endif
|
|
|
|
|
|
#endif
|