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| author | Marek Szyprowski <m.szyprowski@samsung.com> | 2016-11-03 11:04:45 +0300 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2016-11-14 17:59:43 +0300 |
| commit | 1a0d8dac5155de0be01dad805413ee7515177436 (patch) | |
| tree | bb2973dc8b183771a0bb546771d680b5f566daff /drivers/accessibility | |
| parent | bc33b0ca11e3df467777a4fa7639ba488c9d4911 (diff) | |
| download | linux-1a0d8dac5155de0be01dad805413ee7515177436.tar.xz | |
iommu/exynos: Add support for page access protection bits
This patch add support for page access protection bits. Till now this
feature was disabled and Exynos SYSMMU always mapped pages as read/write.
Now page access bits are set according to the protection bits provided
in iommu_map(), so Exynos SYSMMU is able to detect incorrect access to
mapped pages. Exynos SYSMMU earlier than v5 doesn't support write-only
mappings, so pages with such protection bits are mapped as read/write.
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/accessibility')
0 files changed, 0 insertions, 0 deletions