tree ec6cf89ca670e12c93297d615bd4a115d5865e8b
parent 82e535078e00ab6d9da72bd4316b4a89b07c50af
author John Bauman <jbauman@google.com> 1544577119 -0800
committer CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> 1544665262 +0000

[msd-arm-mali] Fix deadlock processing gpu interrupts

The interrupt thread could be waiting for the device thread to process
a request (generally if the GPU faults) while the device thread could
wait for the interrupt thread to process a power changed interrupt.

Prevent the deadlock by avoiding having the interrupt thread wait on the
device thread - instead it can either process events itself or hand them
off asynchronously.

Test: astro:go/magma-tps#L0

Change-Id: I81e7cf4d8b652cdddf648a5f7ae6339a1263e361