AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

intel-iommu: Change dma_addr_level_pte() to dma_pfn_level_pte()

Browse Source 
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This commit is contained in:
David Woodhouse 2009-06-27 17:14:59 +01:00
parent 77dfa56c94
commit 90dcfb5eb2
1 changed files with 7 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/pci/intel-iommu.c
View File

@ -740,8 +740,9 @@ static struct dma_pte * addr_to_dma_pte(struct dmar_domain *domain, u64 addr)
}
/* return address's pte at specific level */
static struct dma_pte *dma_addr_level_pte(struct dmar_domain *domain, u64 addr,
int level)
static struct dma_pte *dma_pfn_level_pte(struct dmar_domain *domain,
unsigned long pfn,
int level)
{
struct dma_pte *parent, *pte = NULL;
int total = agaw_to_level(domain->agaw);
@ -749,7 +750,7 @@ static struct dma_pte *dma_addr_level_pte(struct dmar_domain *domain, u64 addr,
parent = domain->pgd;
while (level <= total) {
offset = pfn_level_offset(addr >> VTD_PAGE_SHIFT, total);
offset = pfn_level_offset(pfn, total);
pte = &parent[offset];
if (level == total)
return pte;
@ -768,7 +769,7 @@ static void dma_pte_clear_one(struct dmar_domain *domain, u64 addr)
struct dma_pte *pte = NULL;
/* get last level pte */
pte = dma_addr_level_pte(domain, addr, 1);
pte = dma_pfn_level_pte(domain, addr >> VTD_PAGE_SHIFT, 1);
if (pte) {
dma_clear_pte(pte);
@ -817,7 +818,8 @@ static void dma_pte_free_pagetable(struct dmar_domain *domain,
return;
while (tmp < end) {
pte = dma_addr_level_pte(domain, tmp, level);
pte = dma_pfn_level_pte(domain, tmp >> VTD_PAGE_SHIFT,
level);
if (pte) {
free_pgtable_page(
phys_to_virt(dma_pte_addr(pte)));