Re: [PATCH] ath10k: disable cpuidle during downloading firmware.
From: Kalle Valo
Date: Fri Nov 08 2019 - 03:54:14 EST
Ikjoon Jang <ikjn@xxxxxxxxxxxx> wrote:
> 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().
>
> Tested-on: QCA9880
> Tested-on: QCA6174 hw3.2 SDIO WLAN.RMH.4.4.1-00029
>
> Signed-off-by: Ikjoon Jang <ikjn@xxxxxxxxxxxx>
> Signed-off-by: Kalle Valo <kvalo@xxxxxxxxxxxxxx>
Patch applied to ath-next branch of ath.git, thanks.
3b58d6a599ba ath10k: disable cpuidle during downloading firmware
--
https://patchwork.kernel.org/patch/11222331/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches