tree 2e91836fca22390db3571b3b0b1563d63680602a
parent e64be25303f5381b093a520b72f8adb6979b7d8d
author Sean Callanan <spyffe@google.com> 1681923904 +0000
committer Sean Callanan <spyffe@google.com> 1681924206 +0000

msm: kgsl: Keep postamble packets in a privileged buffer

Postamble packets are executed in privileged mode by gpu. So we should keep
them in a privileged scratch buffer to block userspace access. For
targets with APRIV feature support, we can mark the preemption scratch
buffer as privileged too to avoid similar issues in future.

Bug: 276750663
Change-Id: Ifda360dda251083f38dfde80ce1b5dc83daae902
Signed-off-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
Signed-off-by: Kaushal Sanadhya <quic_ksanadhy@quicinc.com>
Signed-off-by: Sean Callanan <spyffe@google.com>