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Miller" Subject: Re: [PATCH] ath10k: disable cpuidle during downloading firmware. References: <20191101054035.42101-1-ikjn@chromium.org> <87y2ws3lvh.fsf@kamboji.qca.qualcomm.com> Date: Fri, 08 Nov 2019 10:31:07 +0200 In-Reply-To: (Tom Psyborg's message of "Wed, 6 Nov 2019 19:33:54 +0100") Message-ID: <87bltmydkk.fsf@kamboji.qca.qualcomm.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/24.5 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Tom Psyborg writes: > On 06/11/2019, Kalle Valo wrote: >> Ikjoon Jang 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 >> >> 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. -- https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches