msm: sde: map/unmap timestamp buffer for every rotator session

In the current implementation, the timestamp buffer is mapped at
the beginning of the first rotator session, and unmapped during
the rotator device remove. In sdm 660/630, there is no separate
context bank for rotator. In some cases (like secure display),
the IOMMU might be detached and reattached, invalidating the
timestamp buffer map.

Changing the timestamp buffer implementation to map/unmap for every
rotator session instead of rotator device create/remove, to handle
such cases.

Change-Id: I4fca45bdc0a1f4a8c5e54574139478d4e443685a
Signed-off-by: Krishna Chaitanya Devarakonda <kdevarak@codeaurora.org>

0 files changed, 0 insertions, 0 deletions