Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 46b08e1a authored by Mark McLoughlin's avatar Mark McLoughlin Committed by Joerg Roedel
Browse files

intel-iommu: move root entry defs from dma_remapping.h 



We keep the struct root_entry forward declaration for the
pointer in struct intel_iommu.

Signed-off-by: default avatarMark McLoughlin <markmc@redhat.com>
Signed-off-by: default avatarDavid Woodhouse <David.Woodhouse@intel.com>
parent f27be03b

drivers/pci/intel-iommu.c

+33 −0
Original line number Diff line number Diff line
@@ -57,6 +57,39 @@ 
#define DMA_32BIT_PFN		IOVA_PFN(DMA_32BIT_MASK)

#define DMA_64BIT_PFN		IOVA_PFN(DMA_64BIT_MASK)



/*

 * 0: Present

 * 1-11: Reserved

 * 12-63: Context Ptr (12 - (haw-1))

 * 64-127: Reserved

 */

struct root_entry {

	u64	val;

	u64	rsvd1;

};

#define ROOT_ENTRY_NR (VTD_PAGE_SIZE/sizeof(struct root_entry))

static inline bool root_present(struct root_entry *root)

{

	return (root->val & 1);

}

static inline void set_root_present(struct root_entry *root)

{

	root->val |= 1;

}

static inline void set_root_value(struct root_entry *root, unsigned long value)

{

	root->val |= value & VTD_PAGE_MASK;

}



static inline struct context_entry *

get_context_addr_from_root(struct root_entry *root)

{

	return (struct context_entry *)

		(root_present(root)?phys_to_virt(

		root->val & VTD_PAGE_MASK) :

		NULL);

}



static void flush_unmaps_timeout(unsigned long data);



DEFINE_TIMER(unmap_timer,  flush_unmaps_timeout, 0, 0);

include/linux/dma_remapping.h

+1 −33
Original line number Diff line number Diff line
@@ -9,39 +9,7 @@ 
#define VTD_PAGE_MASK		(((u64)-1) << VTD_PAGE_SHIFT)

#define VTD_PAGE_ALIGN(addr)	(((addr) + VTD_PAGE_SIZE - 1) & VTD_PAGE_MASK)



/*

 * 0: Present

 * 1-11: Reserved

 * 12-63: Context Ptr (12 - (haw-1))

 * 64-127: Reserved

 */

struct root_entry {

	u64	val;

	u64	rsvd1;

};

#define ROOT_ENTRY_NR (VTD_PAGE_SIZE/sizeof(struct root_entry))

static inline bool root_present(struct root_entry *root)

{

	return (root->val & 1);

}

static inline void set_root_present(struct root_entry *root)

{

	root->val |= 1;

}

static inline void set_root_value(struct root_entry *root, unsigned long value)

{

	root->val |= value & VTD_PAGE_MASK;

}



struct context_entry;

static inline struct context_entry *

get_context_addr_from_root(struct root_entry *root)

{

	return (struct context_entry *)

		(root_present(root)?phys_to_virt(

		root->val & VTD_PAGE_MASK) :

		NULL);

}

struct root_entry;



/*

 * low 64 bits: