From: Anna Maniscalco <anna.maniscalco2000@gmail.com>
To: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Cc: Rob Clark <robin.clark@oss.qualcomm.com>,
Will Deacon <will@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
Joerg Roedel <joro@8bytes.org>, Sean Paul <sean@poorly.run>,
Konrad Dybcio <konradybcio@kernel.org>,
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>,
Bjorn Andersson <andersson@kernel.org>,
Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
iommu@lists.linux.dev, linux-arm-msm@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
freedreno@lists.freedesktop.org, devicetree@vger.kernel.org
Subject: Re: [PATCH RFC 01/13] iommu: arm-smmu-qcom: Configure lpac device with split address space
Date: Tue, 7 Jul 2026 17:04:46 +0200 [thread overview]
Message-ID: <6acf86dc-0df0-492a-b3dc-224a666214b9@gmail.com> (raw)
In-Reply-To: <5vfdbrk4bu77e7wgutp4h3ilbpjhcxxnwemqiufmtiwoffp4sl@oaonwwouw4qm>
On 7/6/26 5:00 PM, Dmitry Baryshkov wrote:
> On Sun, Jul 05, 2026 at 09:13:35PM +0200, Anna Maniscalco wrote:
>> We want the context bank used by LPAC to use split address space just
>> like GFX.
> Why?
I'll update the commit message in the next revision.
The reason is the same as GFX, we want split kernel and user address
spaces so we can use per context page tables for userspace submissions.
>
>> Signed-off-by: Anna Maniscalco <anna.maniscalco2000@gmail.com>
>> ---
>> drivers/iommu/arm/arm-smmu/arm-smmu-qcom.c | 11 ++++++++---
>> 1 file changed, 8 insertions(+), 3 deletions(-)
>>
Best regards,
--
Anna Maniscalco <anna.maniscalco2000@gmail.com>
next prev parent reply other threads:[~2026-07-07 15:05 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-07-05 19:13 [RFC PATCH 00/13] Enable LPAC on a7xx series GPUs Anna Maniscalco
2026-07-05 19:13 ` [PATCH RFC 01/13] iommu: arm-smmu-qcom: Configure lpac device with split address space Anna Maniscalco
2026-07-06 15:00 ` Dmitry Baryshkov
2026-07-07 15:04 ` Anna Maniscalco [this message]
2026-07-05 19:13 ` [PATCH RFC 02/13] drm/msm: add support for lpac_domain in msm_mmu Anna Maniscalco
2026-07-05 19:13 ` [PATCH RFC 03/13] drm/msm: look for lpac from dts Anna Maniscalco
2026-07-06 15:04 ` Dmitry Baryshkov
2026-07-07 15:02 ` Anna Maniscalco
2026-07-07 16:39 ` Dmitry Baryshkov
2026-07-05 19:13 ` [PATCH RFC 04/13] arm64: dts: qcom: sm8650: move smmu sid 1 to new lpac device Anna Maniscalco
2026-07-06 8:40 ` Konrad Dybcio
2026-07-05 19:13 ` [PATCH RFC 05/13] firmware: qcom: scm: Configure LPAC aperture Anna Maniscalco
2026-07-05 19:13 ` [PATCH RFC 06/13] DEBUGGING: print contextbank and other ttbrs on fault Anna Maniscalco
2026-07-05 19:13 ` [PATCH RFC 07/13] iommu: arm-smmu-qcom: Fixed mapping between sid and cb for gpu and lpac Anna Maniscalco
2026-07-05 19:13 ` [PATCH RFC 08/13] HACK: use cb1 address in lpac dtb node Anna Maniscalco
2026-07-05 19:13 ` [PATCH RFC 09/13] temp: add LPAC regs Anna Maniscalco
2026-07-05 19:13 ` [PATCH RFC 10/13] drm/msm: initialize LPAC ring Anna Maniscalco
2026-07-06 8:44 ` Konrad Dybcio
2026-07-06 11:07 ` Anna Maniscalco
2026-07-06 11:09 ` Konrad Dybcio
2026-07-06 21:56 ` Akhil P Oommen
2026-07-06 22:13 ` Anna Maniscalco
2026-07-05 19:13 ` [PATCH RFC 11/13] drm/msm: Add LPAC submitqueue Anna Maniscalco
2026-07-05 19:13 ` [PATCH RFC 12/13] drm/msm: set ctxbank and asid based on ring Anna Maniscalco
2026-07-05 19:13 ` [PATCH RFC 13/13] drm/msm: add lpac ring to devcoredump Anna Maniscalco
2026-07-06 14:57 ` [RFC PATCH 00/13] Enable LPAC on a7xx series GPUs Dmitry Baryshkov
2026-07-06 22:00 ` Akhil P Oommen
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=6acf86dc-0df0-492a-b3dc-224a666214b9@gmail.com \
--to=anna.maniscalco2000@gmail.com \
--cc=abhinav.kumar@linux.dev \
--cc=airlied@gmail.com \
--cc=akhilpo@oss.qualcomm.com \
--cc=andersson@kernel.org \
--cc=conor+dt@kernel.org \
--cc=devicetree@vger.kernel.org \
--cc=dmitry.baryshkov@oss.qualcomm.com \
--cc=dri-devel@lists.freedesktop.org \
--cc=freedreno@lists.freedesktop.org \
--cc=iommu@lists.linux.dev \
--cc=jesszhan0024@gmail.com \
--cc=joro@8bytes.org \
--cc=konradybcio@kernel.org \
--cc=krzk+dt@kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=lumag@kernel.org \
--cc=maarten.lankhorst@linux.intel.com \
--cc=marijn.suijten@somainline.org \
--cc=mripard@kernel.org \
--cc=robh@kernel.org \
--cc=robin.clark@oss.qualcomm.com \
--cc=robin.murphy@arm.com \
--cc=sean@poorly.run \
--cc=simona@ffwll.ch \
--cc=tzimmermann@suse.de \
--cc=will@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