lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

[IA64] Add Variable Page Size and IA64 Support in Intel IOMMU

Browse Source 
The patch contains Intel IOMMU IA64 specific code. It defines new
machvec dig_vtd, hooks for IOMMU, DMAR table detection, cache line flush
function, etc.

For a generic kernel with CONFIG_DMAR=y, if Intel IOMMU is detected,
dig_vtd is used for machinve vector. Otherwise, kernel falls back to
dig machine vector. Kernel parameter "machvec=dig" or "intel_iommu=off"
can be used to force kernel to boot dig machine vector.

Signed-off-by: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
This commit is contained in:
Fenghua Yu
2008-10-17 12:14:13 -07:00
committed by Tony Luck
parent 6bb7a93548
commit 62fdd7678a
23 changed files with 620 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

38
arch/ia64/include/asm/machvec_dig_vtd.h Normal file
View File

@@ -0,0 +1,38 @@
#ifndef _ASM_IA64_MACHVEC_DIG_VTD_h
#define _ASM_IA64_MACHVEC_DIG_VTD_h
extern ia64_mv_setup_t dig_setup;
extern ia64_mv_dma_alloc_coherent vtd_alloc_coherent;
extern ia64_mv_dma_free_coherent vtd_free_coherent;
extern ia64_mv_dma_map_single_attrs vtd_map_single_attrs;
extern ia64_mv_dma_unmap_single_attrs vtd_unmap_single_attrs;
extern ia64_mv_dma_map_sg_attrs vtd_map_sg_attrs;
extern ia64_mv_dma_unmap_sg_attrs vtd_unmap_sg_attrs;
extern ia64_mv_dma_supported iommu_dma_supported;
extern ia64_mv_dma_mapping_error vtd_dma_mapping_error;
extern ia64_mv_dma_init pci_iommu_alloc;
/*
* This stuff has dual use!
*
* For a generic kernel, the macros are used to initialize the
* platform's machvec structure. When compiling a non-generic kernel,
* the macros are used directly.
*/
#define platform_name "dig_vtd"
#define platform_setup dig_setup
#define platform_dma_init pci_iommu_alloc
#define platform_dma_alloc_coherent vtd_alloc_coherent
#define platform_dma_free_coherent vtd_free_coherent
#define platform_dma_map_single_attrs vtd_map_single_attrs
#define platform_dma_unmap_single_attrs vtd_unmap_single_attrs
#define platform_dma_map_sg_attrs vtd_map_sg_attrs
#define platform_dma_unmap_sg_attrs vtd_unmap_sg_attrs
#define platform_dma_sync_single_for_cpu machvec_dma_sync_single
#define platform_dma_sync_sg_for_cpu machvec_dma_sync_sg
#define platform_dma_sync_single_for_device machvec_dma_sync_single
#define platform_dma_sync_sg_for_device machvec_dma_sync_sg
#define platform_dma_supported iommu_dma_supported
#define platform_dma_mapping_error vtd_dma_mapping_error
#endif /* _ASM_IA64_MACHVEC_DIG_VTD_h */