diff options
Diffstat (limited to 'tools/testing/selftests/iommu/iommufd_utils.h')
| -rw-r--r-- | tools/testing/selftests/iommu/iommufd_utils.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/tools/testing/selftests/iommu/iommufd_utils.h b/tools/testing/selftests/iommu/iommufd_utils.h index 8d2b46b211..c612fbf019 100644 --- a/tools/testing/selftests/iommu/iommufd_utils.h +++ b/tools/testing/selftests/iommu/iommufd_utils.h @@ -22,6 +22,8 @@ #define BIT_MASK(nr) (1UL << ((nr) % __BITS_PER_LONG)) #define BIT_WORD(nr) ((nr) / __BITS_PER_LONG) +#define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d)) + static inline void set_bit(unsigned int nr, unsigned long *addr) { unsigned long mask = BIT_MASK(nr); @@ -346,12 +348,12 @@ static int _test_cmd_mock_domain_set_dirty(int fd, __u32 hwpt_id, size_t length, static int _test_mock_dirty_bitmaps(int fd, __u32 hwpt_id, size_t length, __u64 iova, size_t page_size, size_t pte_page_size, __u64 *bitmap, - __u64 bitmap_size, __u32 flags, + __u64 nbits, __u32 flags, struct __test_metadata *_metadata) { unsigned long npte = pte_page_size / page_size, pteset = 2 * npte; - unsigned long nbits = bitmap_size * BITS_PER_BYTE; unsigned long j, i, nr = nbits / pteset ?: 1; + unsigned long bitmap_size = DIV_ROUND_UP(nbits, BITS_PER_BYTE); __u64 out_dirty = 0; /* Mark all even bits as dirty in the mock domain */ |