tree bcc3426a5639d2837186adc3f8d52a09962f1a49
parent 242b1d713386e8e2fd7f62cc1ed4681a12290848
author Tomeu Vizoso <tomeu.vizoso@collabora.com> 1426171690 +0100
committer Thierry Reding <treding@nvidia.com> 1430744976 +0200

memory: tegra: Disable ARBITRATION_EMEM interrupt

As this interrupt is just for development purposes, as the TRM says, and
the sheer amount of interrupts fired can seriously disrupt userspace
when testing the lower frequencies supported by the EMC.

From the TRM:

"There is one performance warning type interrupt: ARBITRATION_EMEM. It
fires when the MC detects that a request has been pending in the Row
Sorter long enough to hit the DEADLOCK_PREVENTION_SLACK_THRESHOLD. In
addition to true performance problems, this interrupt may fire in
situations such as clock-change where the EMC backpressures pending
traffic for long periods of time. This interrupt helps developers
identify and debug performance issues and configuration issues."

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>