lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

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

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

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
Mark McLoughlin
2008-11-20 15:49:44 +00:00
committed by Joerg Roedel
parent f27be03b27
commit 46b08e1a76
2 changed files with 34 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
drivers/pci/intel-iommu.c
View File

@@ -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);