Re: [PATCH] ath10k: disable cpuidle during downloading firmware.

Kalle Valo
2019-11-08T08:31:13Z

Tom Psyborg <pozega.tomislav@gmail.com> writes:

> On 06/11/2019, Kalle Valo <kvalo@codeaurora.org> wrote:
>> Ikjoon Jang <ikjn@chromium.org> writes:
>>
>>> Downloading ath10k firmware needs a large number of IOs and
>>> cpuidle's miss predictions make it worse. In the worst case,
>>> resume time can be three times longer than the average on sdio.
>>>
>>> This patch disables cpuidle during firmware downloading by
>>> applying PM_QOS_CPU_DMA_LATENCY in ath10k_download_fw().
>>>
>>> Signed-off-by: Ikjoon Jang <ikjn@chromium.org>
>>
>> On what hardware and firmware versions did you test this? I'll add that
>> to the commit log.
>
> I've tested this on QCA9880. No issues during firmware download.

Great, thanks for testing.