diff options
| author | Yong Wu <yong.wu@mediatek.com> | 2021-01-11 19:18:55 +0800 |
|---|---|---|
| committer | Will Deacon <will@kernel.org> | 2021-02-01 11:31:17 +0000 |
| commit | 2f317da4332a145be76ccd49d0a38803b499c39c (patch) | |
| tree | 3512b2d4995b09f923eb554e6dc6370fb412f405 /drivers/bus/sun50i-de2.c | |
| parent | f3a8a46d714fd67b856f09e4c783363076ebac62 (diff) | |
iommu/mediatek: Add a flag for iova 34bits case
Add a HW flag for if the HW support 34bit IOVA. the previous SoC
still use 32bit. normally the lvl1 pgtable size is 16KB when ias == 32.
if ias == 34, lvl1 pgtable size is 16KB * 4. The purpose of this patch
is to save 16KB*3 continuous memory for the previous SoC.
Signed-off-by: Yong Wu <yong.wu@mediatek.com>
Reviewed-by: Tomasz Figa <tfiga@chromium.org>
Link: https://lore.kernel.org/r/20210111111914.22211-15-yong.wu@mediatek.com
Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'drivers/bus/sun50i-de2.c')
0 files changed, 0 insertions, 0 deletions