diff options
| author | Lionel Landwerlin <[email protected]> | 2017-07-13 15:37:43 +0100 |
|---|---|---|
| committer | Lionel Landwerlin <[email protected]> | 2017-07-13 22:50:26 +0100 |
| commit | 19869d6091e170248378d38352339c65cff19d63 (patch) | |
| tree | 28610f6b5b9bdb9ecf3cf383a31a6c1674673608 /src/intel/isl/isl.c | |
| parent | 4df93a54f18ff8baca1d7a1b395c1fa70d65a9bb (diff) | |
isl: use 64bit arithmetic to compute size
If we allow the size to be more than 2^32, then we should compute it
in 64bit arithmetic otherwise we might run into overflow issues.
CID: 1412892, 1412891
Signed-off-by: Lionel Landwerlin <[email protected]>
Reviewed-by: Anuj Phogat <[email protected]>
Diffstat (limited to 'src/intel/isl/isl.c')
| -rw-r--r-- | src/intel/isl/isl.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/intel/isl/isl.c b/src/intel/isl/isl.c index ba56d86c178..1026fe94952 100644 --- a/src/intel/isl/isl.c +++ b/src/intel/isl/isl.c @@ -1469,7 +1469,7 @@ isl_surf_init_s(const struct isl_device *dev, uint32_t base_alignment; uint64_t size; if (tiling == ISL_TILING_LINEAR) { - size = row_pitch * padded_h_el + pad_bytes; + size = (uint64_t) row_pitch * padded_h_el + pad_bytes; /* From the Broadwell PRM Vol 2d, RENDER_SURFACE_STATE::SurfaceBaseAddress: * @@ -1494,7 +1494,7 @@ isl_surf_init_s(const struct isl_device *dev, const uint32_t total_h_tl = isl_align_div(padded_h_el, tile_info.logical_extent_el.height); - size = total_h_tl * tile_info.phys_extent_B.height * row_pitch; + size = (uint64_t) total_h_tl * tile_info.phys_extent_B.height * row_pitch; const uint32_t tile_size = tile_info.phys_extent_B.width * tile_info.phys_extent_B.height; |