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Diffstat (limited to 'drivers/iommu/intel/cache.c')
| -rw-r--r-- | drivers/iommu/intel/cache.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/iommu/intel/cache.c b/drivers/iommu/intel/cache.c index e8418cdd8331..44e92638c0cd 100644 --- a/drivers/iommu/intel/cache.c +++ b/drivers/iommu/intel/cache.c @@ -245,7 +245,8 @@ static unsigned long calculate_psi_aligned_address(unsigned long start, * shared_bits are all equal in both pfn and end_pfn. */ shared_bits = ~(pfn ^ end_pfn) & ~bitmask; - mask = shared_bits ? __ffs(shared_bits) : BITS_PER_LONG; + mask = shared_bits ? __ffs(shared_bits) : MAX_AGAW_PFN_WIDTH; + aligned_pages = 1UL << mask; } *_pages = aligned_pages; |