intel-iommu: Change address_level_offset() to pfn_level_offset()
We're shifting the inputs for now, but that'll change... Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
parent
dd4e831960
commit
77dfa56c94
|
@ -671,9 +671,9 @@ static inline unsigned int level_to_offset_bits(int level)
|
|||
return (12 + (level - 1) * LEVEL_STRIDE);
|
||||
}
|
||||
|
||||
static inline int address_level_offset(u64 addr, int level)
|
||||
static inline int pfn_level_offset(unsigned long pfn, int level)
|
||||
{
|
||||
return ((addr >> level_to_offset_bits(level)) & LEVEL_MASK);
|
||||
return (pfn >> (level_to_offset_bits(level) - 12)) & LEVEL_MASK;
|
||||
}
|
||||
|
||||
static inline u64 level_mask(int level)
|
||||
|
@ -708,7 +708,7 @@ static struct dma_pte * addr_to_dma_pte(struct dmar_domain *domain, u64 addr)
|
|||
while (level > 0) {
|
||||
void *tmp_page;
|
||||
|
||||
offset = address_level_offset(addr, level);
|
||||
offset = pfn_level_offset(addr >> VTD_PAGE_SHIFT, level);
|
||||
pte = &parent[offset];
|
||||
if (level == 1)
|
||||
break;
|
||||
|
@ -749,7 +749,7 @@ static struct dma_pte *dma_addr_level_pte(struct dmar_domain *domain, u64 addr,
|
|||
|
||||
parent = domain->pgd;
|
||||
while (level <= total) {
|
||||
offset = address_level_offset(addr, total);
|
||||
offset = pfn_level_offset(addr >> VTD_PAGE_SHIFT, total);
|
||||
pte = &parent[offset];
|
||||
if (level == total)
|
||||
return pte;
|
||||
|
|
Loading…
Reference in a new issue