drivers/iommu/omap-iommu.c

2  * omap iommu: tlb and pagetable primitives
21 #include <linux/iommu.h>
27 #include <plat/iommu.h>
40  * struct omap_iommu_domain - omap iommu domain
42  * @iommu_dev:	an omap iommu device attached to this domain. only a single
43  *		iommu device can be attached for now.
59  * omap_install_iommu_arch - Install archtecure specific iommu functions
60  * @ops:	a pointer to architecture specific iommu functions
62  * There are several kind of iommu algorithm(tlb, pagetable) among
63  * omap series. This interface installs such an iommu algorighm.
76  * omap_uninstall_iommu_arch - Uninstall archtecure specific iommu functions
77  * @ops:	a pointer to architecture specific iommu functions
79  * This interface uninstalls the iommu algorighm installed previously.
115  * omap_iommu_arch_version - Return running iommu arch version
231  * iotlb_dump_cr - Dump an iommu tlb entry into buf
232  * @obj:	target iommu
259  * load_iotlb_entry - Set an iommu tlb entry
260  * @obj:	target iommu
261  * @e:		an iommu tlb entry info
336  * flush_iotlb_page - Clear an iommu tlb entry
337  * @obj:	target iommu
338  * @da:		iommu device virtual address
340  * Clear an iommu tlb entry which includes 'da' address.
373  * flush_iotlb_all - Clear all iommu tlb entries
374  * @obj:	target iommu
433  * @obj:	target iommu
643  * omap_iopgtable_store_entry - Make an iommu pte entry
644  * @obj:	target iommu
645  * @e:		an iommu tlb entry info
660  * iopgtable_lookup_entry - Lookup an iommu pte entry
661  * @obj:	target iommu
662  * @da:		iommu device virtual address
663  * @ppgd:	iommu pgd entry pointer to be returned
664  * @ppte:	iommu pte entry pointer to be returned
731  * iopgtable_clear_entry - Remove an iommu pte entry
732  * @obj:	target iommu
733  * @da:		iommu device virtual address
778  *	Device IOMMU generic operations
830  * omap_iommu_attach() - attach iommu device to an iommu domain
831  * @name:	name of target omap iommu device
850 	/* an iommu device can only be attached once */  in omap_iommu_attach()
881  * omap_iommu_detach - release iommu device
882  * @obj:	target iommu
904  *	OMAP Device MMU(IOMMU) detection
1007 		.name	= "omap-iommu",
1026 	/* we only support mapping a single iommu page for now */  in omap_iommu_map()
1063 	struct omap_iommu_arch_data *arch_data = dev->archdata.iommu;  in omap_iommu_attach_dev()
1070 		dev_err(dev, "iommu domain is already attached\n");  in omap_iommu_attach_dev()
1075 	/* get a handle to and enable the omap iommu */  in omap_iommu_attach_dev()
1079 		dev_err(dev, "can't get omap iommu: %d\n", ret);  in omap_iommu_attach_dev()
1095 	struct omap_iommu_arch_data *arch_data = dev->archdata.iommu;  in omap_iommu_detach_dev()
1102 		dev_err(dev, "invalid iommu device\n");  in omap_iommu_detach_dev()
1237 MODULE_DESCRIPTION("omap iommu: tlb and pagetable primitives");
1238 MODULE_ALIAS("platform:omap-iommu");