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authorVladimir Lypak <vladimir.lypak@gmail.com>2021-12-12 16:03:17 +0000
committerRob Clark <robdclark@chromium.org>2021-12-17 15:09:46 -0800
commit6ed95285382d6f90a3c3a11d5806a5eb7db715c3 (patch)
tree801c2ec474a82a10eb60f304e71ac90b8fdec304 /.mailmap
parent6bf7805321b96e4144c1232d7c3f66b2dce35761 (diff)
drm/msm/a5xx: Fix missing CP_PROTECT for SMMU on A540
A CP_PROTECT entry for SMMU registers is missing for A540. According to downstream sources its length is same as on A530 - 0x20000 bytes. On all other revisions SMMU region length is 0x10000 bytes. Despite this, we setup region of length 0x20000 on all revisions. This doesn't cause any issues on those GPUs. As for preventing accesses to the region from protected mode it was tested to work the same. This patch drops the "if" condition in setup of CP_PROTECT entry because it already includes all supported revisions except A540. Signed-off-by: Vladimir Lypak <vladimir.lypak@gmail.com> Link: https://lore.kernel.org/r/20211212160333.980343-2-vladimir.lypak@gmail.com Signed-off-by: Rob Clark <robdclark@chromium.org>
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