diff options
Diffstat (limited to 'drivers/iommu')
-rw-r--r-- | drivers/iommu/amd_iommu.c | 40 | ||||
-rw-r--r-- | drivers/iommu/amd_iommu_types.h | 40 |
2 files changed, 40 insertions, 40 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 3cdfac6024a5..9ce51eb1c33a 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -114,6 +114,46 @@ struct kmem_cache *amd_iommu_irq_cache; static void update_domain(struct protection_domain *domain); static int protection_domain_init(struct protection_domain *domain); +/* + * For dynamic growth the aperture size is split into ranges of 128MB of + * DMA address space each. This struct represents one such range. + */ +struct aperture_range { + + /* address allocation bitmap */ + unsigned long *bitmap; + + /* + * Array of PTE pages for the aperture. In this array we save all the + * leaf pages of the domain page table used for the aperture. This way + * we don't need to walk the page table to find a specific PTE. We can + * just calculate its address in constant time. + */ + u64 *pte_pages[64]; + + unsigned long offset; +}; + +/* + * Data container for a dma_ops specific protection domain + */ +struct dma_ops_domain { + /* generic protection domain information */ + struct protection_domain domain; + + /* size of the aperture for the mappings */ + unsigned long aperture_size; + + /* address we start to search for free addresses */ + unsigned long next_address; + + /* address space relevant data */ + struct aperture_range *aperture[APERTURE_MAX_RANGES]; + + /* This will be set to true when TLB needs to be flushed */ + bool need_flush; +}; + /**************************************************************************** * * Helper functions diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h index b08cf57bf455..9d32b20a5e9a 100644 --- a/drivers/iommu/amd_iommu_types.h +++ b/drivers/iommu/amd_iommu_types.h @@ -425,46 +425,6 @@ struct protection_domain { }; /* - * For dynamic growth the aperture size is split into ranges of 128MB of - * DMA address space each. This struct represents one such range. - */ -struct aperture_range { - - /* address allocation bitmap */ - unsigned long *bitmap; - - /* - * Array of PTE pages for the aperture. In this array we save all the - * leaf pages of the domain page table used for the aperture. This way - * we don't need to walk the page table to find a specific PTE. We can - * just calculate its address in constant time. - */ - u64 *pte_pages[64]; - - unsigned long offset; -}; - -/* - * Data container for a dma_ops specific protection domain - */ -struct dma_ops_domain { - /* generic protection domain information */ - struct protection_domain domain; - - /* size of the aperture for the mappings */ - unsigned long aperture_size; - - /* address we start to search for free addresses */ - unsigned long next_address; - - /* address space relevant data */ - struct aperture_range *aperture[APERTURE_MAX_RANGES]; - - /* This will be set to true when TLB needs to be flushed */ - bool need_flush; -}; - -/* * Structure where we save information about one hardware AMD IOMMU in the * system. */ |