From: Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>
To: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>,
Ling Xu <quic_lxu5@quicinc.com>
Cc: cros-qcom-dts-watchers@chromium.org, andersson@kernel.org,
konradybcio@kernel.org, robh@kernel.org, krzk+dt@kernel.org,
conor+dt@kernel.org, quic_kuiw@quicinc.com,
ekansh.gupta@oss.qualcomm.com, devicetree@vger.kernel.org,
linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH v4 2/2] arm64: dts: qcom: sc7280: Add nsessions property for adsp
Date: Mon, 11 Aug 2025 13:06:55 +0200 [thread overview]
Message-ID: <53644b36-2eff-4b1c-9886-591afee8b589@oss.qualcomm.com> (raw)
In-Reply-To: <nsdj4ytpdn55mn5l2gr23w4whpbt2ogxbaomimqoarvskz3uzs@5mbrq7jvxnp2>
On 8/11/25 12:42 PM, Dmitry Baryshkov wrote:
> On Tue, Jul 01, 2025 at 02:19:05PM +0530, Ling Xu wrote:
>> Add nsessions property for adsp context bank to make sessions
>> available for ADSP offload.
>
> - Describe the problem, describe _how_ the commit solves it.
This is pure software configuration, the only real limitation is that
the total amount of sessions per channel can't exceed 14 (because our
driver says so? I have conflicting information where this number comes
from), but no more than 5 is recommended for optimal performance
I'd rather waste a couple of bytes and pre-alloc the maximum amount on
every channel, so that if someone decides they want to use the DSPs ever
so slightly differently, they don't have to run around changing the DT..
Konrad
next prev parent reply other threads:[~2025-08-11 11:18 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-01 8:49 [PATCH v4 0/2] arm64: dts: qcom: sc7280: Add property for sc7280 Ling Xu
2025-07-01 8:49 ` [PATCH v4 1/2] arm64: dts: qcom: sc7280: Add memory region for audiopd Ling Xu
2025-08-11 10:43 ` Dmitry Baryshkov
2025-07-01 8:49 ` [PATCH v4 2/2] arm64: dts: qcom: sc7280: Add nsessions property for adsp Ling Xu
2025-08-11 10:42 ` Dmitry Baryshkov
2025-08-11 11:06 ` Konrad Dybcio [this message]
2025-08-11 1:40 ` [PATCH v4 0/2] arm64: dts: qcom: sc7280: Add property for sc7280 Ling Xu
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=53644b36-2eff-4b1c-9886-591afee8b589@oss.qualcomm.com \
--to=konrad.dybcio@oss.qualcomm.com \
--cc=andersson@kernel.org \
--cc=conor+dt@kernel.org \
--cc=cros-qcom-dts-watchers@chromium.org \
--cc=devicetree@vger.kernel.org \
--cc=dmitry.baryshkov@oss.qualcomm.com \
--cc=ekansh.gupta@oss.qualcomm.com \
--cc=konradybcio@kernel.org \
--cc=krzk+dt@kernel.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=quic_kuiw@quicinc.com \
--cc=quic_lxu5@quicinc.com \
--cc=robh@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®