From: Bjorn Andersson <andersson@kernel.org>
To: Kees Cook <kees@kernel.org>,
"Gustavo A. R. Silva" <gustavoars@kernel.org>,
Rob Clark <robin.clark@oss.qualcomm.com>,
Sean Paul <sean@poorly.run>,
Akhil P Oommen <akhilpo@oss.qualcomm.com>,
Dmitry Baryshkov <lumag@kernel.org>,
Abhinav Kumar <abhinav.kumar@linux.dev>,
Jessica Zhang <jesszhan0024@gmail.com>,
Marijn Suijten <marijn.suijten@somainline.org>,
David Airlie <airlied@gmail.com>, Simona Vetter <simona@ffwll.ch>,
Alim Akhtar <alim.akhtar@samsung.com>,
Avri Altman <avri.altman@sandisk.com>,
Bart Van Assche <bvanassche@acm.org>,
"James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>,
"Martin K. Petersen" <martin.petersen@oracle.com>,
Matthias Brugger <matthias.bgg@gmail.com>,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@collabora.com>,
Suzuki K Poulose <suzuki.poulose@arm.com>,
Mike Leach <mike.leach@arm.com>,
James Clark <james.clark@linaro.org>, Leo Yan <leo.yan@arm.com>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Yuanfang Zhang <yuanfang.zhang@oss.qualcomm.com>,
Mao Jinlong <jinlong.mao@oss.qualcomm.com>,
Jie Gan <jie.gan@oss.qualcomm.com>,
Paul Walmsley <pjw@kernel.org>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Alexandre Ghiti <alex@ghiti.fr>,
Konrad Dybcio <konradybcio@kernel.org>
Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-hardening@vger.kernel.org, dri-devel@lists.freedesktop.org,
freedreno@lists.freedesktop.org,
Konrad Dybcio <konrad.dybcio@oss.qualcomm.com>,
linux-scsi@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
linux-mediatek@lists.infradead.org, coresight@lists.linaro.org,
devicetree@vger.kernel.org, linux-riscv@lists.infradead.org
Subject: Re: [PATCH v5 0/3] Retrieve information about DDR from SMEM
Date: Thu, 30 Jul 2026 22:23:43 -0500 [thread overview]
Message-ID: <178546821257.316167.5256445385425936604.b4-ty@kernel.org> (raw)
In-Reply-To: <20260727-topic-smem_dramc-v5-0-66188b3e338d@oss.qualcomm.com>
On Mon, 27 Jul 2026 11:59:26 +0200, Konrad Dybcio wrote:
> SMEM allows the OS to retrieve information about the DDR memory.
> Among that information, is a semi-magic value called 'HBB', or Highest
> Bank address Bit, which multimedia drivers (for hardware like Adreno
> and MDSS) must retrieve in order to program the IP blocks correctly.
>
> This series introduces an API to retrieve that value, uses it in the
> aforementioned programming sequences and exposes available DDR
> frequencies in debugfs (to e.g. pass to aoss_qmp debugfs). More
> information can be exposed in the future, as needed.
>
> [...]
Applied, thanks!
[1/3] soc: qcom: smem: Use 'unsigned int' instead of 'unsigned'
commit: 80350cdc5f7e2ddc6739987a78f04b9b7788e593
[2/3] soc: qcom: smem: Expose DDR data from SMEM
commit: 1d234eeafc56af8c9af6eee857f41a4310615e78
[3/3] soc: qcom: ubwc: Get HBB from SMEM
commit: 1b445022d1d0ec7431b6f8fe0054ae8ccf33d60a
Best regards,
--
Bjorn Andersson <andersson@kernel.org>
prev parent reply other threads:[~2026-07-31 3:24 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-27 9:59 [PATCH v5 0/3] Retrieve information about DDR from SMEM Konrad Dybcio
2026-07-27 9:59 ` [PATCH v5 1/3] soc: qcom: smem: Use 'unsigned int' instead of 'unsigned' Konrad Dybcio
2026-07-27 12:35 ` Mukesh Ojha
2026-07-27 9:59 ` [PATCH v5 2/3] soc: qcom: smem: Expose DDR data from SMEM Konrad Dybcio
2026-07-27 9:59 ` [PATCH v5 3/3] soc: qcom: ubwc: Get HBB " Konrad Dybcio
2026-07-31 3:23 ` Bjorn Andersson [this message]
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