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Change History

In the Linux kernel, the following vulnerability has been resolved:

drm/amd/display: Disable idle reallow as part of command/gpint execution

[Why]
Workaroud for a race condition where DMCUB is in the process of
committing to IPS1 during the handshake causing us to miss the
transition into IPS2 and touch the INBOX1 RPTR causing a HW hang.

[How]
Disable the reallow to ensure that we have enough of a gap between entry
and exit and we're not seeing back-to-back wake_and_executes.

kernel.org https://git.kernel.org/stable/c/2aac387445610d6dfd681f5214388e86f5677ef7 [No types assigned]

kernel.org https://git.kernel.org/stable/c/6226a5aa77370329e01ee8abe50a95e60618ce97 [No types assigned]