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| author | Fenghua Yu <fenghua.yu@intel.com> | 2008-10-17 12:14:13 -0700 |
|---|---|---|
| committer | Tony Luck <tony.luck@intel.com> | 2008-10-17 12:14:13 -0700 |
| commit | 62fdd7678a26efadd6ac5c2869543caff77d2df0 (patch) | |
| tree | 0dd67208590c4540ff6a4476579a55bcac0d1fce /arch/ia64/dig | |
| parent | 6bb7a935489dab20802dde6c2cb7d8582f4849bf (diff) | |
| download | linux-62fdd7678a26efadd6ac5c2869543caff77d2df0.tar.bz2 | |
[IA64] Add Variable Page Size and IA64 Support in Intel IOMMU
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>
Diffstat (limited to 'arch/ia64/dig')
| -rw-r--r-- | arch/ia64/dig/Makefile | 5 | ||||
| -rw-r--r-- | arch/ia64/dig/dig_vtd_iommu.c | 59 | ||||
| -rw-r--r-- | arch/ia64/dig/machvec_vtd.c | 3 |
3 files changed, 67 insertions, 0 deletions
diff --git a/arch/ia64/dig/Makefile b/arch/ia64/dig/Makefile index 971cd7870dd4..5c0283830bd6 100644 --- a/arch/ia64/dig/Makefile +++ b/arch/ia64/dig/Makefile @@ -6,4 +6,9 @@ # obj-y := setup.o +ifeq ($(CONFIG_DMAR), y) +obj-$(CONFIG_IA64_GENERIC) += machvec.o machvec_vtd.o dig_vtd_iommu.o +else obj-$(CONFIG_IA64_GENERIC) += machvec.o +endif +obj-$(CONFIG_IA64_DIG_VTD) += dig_vtd_iommu.o diff --git a/arch/ia64/dig/dig_vtd_iommu.c b/arch/ia64/dig/dig_vtd_iommu.c new file mode 100644 index 000000000000..1c8a079017a3 --- /dev/null +++ b/arch/ia64/dig/dig_vtd_iommu.c @@ -0,0 +1,59 @@ +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/intel-iommu.h> + +void * +vtd_alloc_coherent(struct device *dev, size_t size, dma_addr_t *dma_handle, + gfp_t flags) +{ + return intel_alloc_coherent(dev, size, dma_handle, flags); +} +EXPORT_SYMBOL_GPL(vtd_alloc_coherent); + +void +vtd_free_coherent(struct device *dev, size_t size, void *vaddr, + dma_addr_t dma_handle) +{ + intel_free_coherent(dev, size, vaddr, dma_handle); +} +EXPORT_SYMBOL_GPL(vtd_free_coherent); + +dma_addr_t +vtd_map_single_attrs(struct device *dev, void *addr, size_t size, + int dir, struct dma_attrs *attrs) +{ + return intel_map_single(dev, (phys_addr_t)addr, size, dir); +} +EXPORT_SYMBOL_GPL(vtd_map_single_attrs); + +void +vtd_unmap_single_attrs(struct device *dev, dma_addr_t iova, size_t size, + int dir, struct dma_attrs *attrs) +{ + intel_unmap_single(dev, iova, size, dir); +} +EXPORT_SYMBOL_GPL(vtd_unmap_single_attrs); + +int +vtd_map_sg_attrs(struct device *dev, struct scatterlist *sglist, int nents, + int dir, struct dma_attrs *attrs) +{ + return intel_map_sg(dev, sglist, nents, dir); +} +EXPORT_SYMBOL_GPL(vtd_map_sg_attrs); + +void +vtd_unmap_sg_attrs(struct device *dev, struct scatterlist *sglist, + int nents, int dir, struct dma_attrs *attrs) +{ + intel_unmap_sg(dev, sglist, nents, dir); +} +EXPORT_SYMBOL_GPL(vtd_unmap_sg_attrs); + +int +vtd_dma_mapping_error(struct device *dev, dma_addr_t dma_addr) +{ + return 0; +} +EXPORT_SYMBOL_GPL(vtd_dma_mapping_error); diff --git a/arch/ia64/dig/machvec_vtd.c b/arch/ia64/dig/machvec_vtd.c new file mode 100644 index 000000000000..7cd3eb471cad --- /dev/null +++ b/arch/ia64/dig/machvec_vtd.c @@ -0,0 +1,3 @@ +#define MACHVEC_PLATFORM_NAME dig_vtd +#define MACHVEC_PLATFORM_HEADER <asm/machvec_dig_vtd.h> +#include <asm/machvec_init.h> |