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Puranam V G Tejaswi 4f704b0342 msm: kgsl: Perform cache flush on the pages obtained using get_user_pages()
Consider a scenario where user allocates anonymous memory but does not
write to it. Here the physical pages are not yet allocated. Now when this
memory is requested to be imported, a list of newly allocated zero pages
is obtained using get_user_pages(). Currently cache flush is not done for
these pages and hence GPU sees stale data. Fix this by performing cache
flush on these pages.

Change-Id: Id1e8aa20e8a9de112761732ed92f30c01088840b
Signed-off-by: Puranam V G Tejaswi <quic_pvgtejas@quicinc.com>
2025-02-14 16:07:29 +02:00
..
2017-08-24 15:09:03 -07:00