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Commit 007b74ba authored by Joerg Roedel's avatar Joerg Roedel
Browse files

iommu/amd: Move 'struct dma_ops_domain' definition to amd_iommu.c 



It is only used in this file anyway, so keep it there. Same
with 'struct aperture_range'.

Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent a7fb668f

drivers/iommu/amd_iommu.c

+40 −0
Original line number Diff line number Diff line
@@ -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

drivers/iommu/amd_iommu_types.h

+0 −40
Original line number Diff line number Diff line
@@ -424,46 +424,6 @@ struct protection_domain { 
	void *priv;             /* private data */

};



/*

 * 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.