From: Ryan Roberts <ryan.roberts@arm.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Arnd Bergmann <arnd@arndb.de>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Marc Zyngier <maz@kernel.org>, Oliver Upton <oupton@kernel.org>,
Alex Williamson <alex@shazbot.org>,
Jason Gunthorpe <jgg@nvidia.com>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Conor Dooley <conor+dt@kernel.org>,
Jean-Philippe Brucker <jpb@kernel.org>,
Oded Gabbay <ogabbay@kernel.org>,
Jonathan Corbet <corbet@lwn.net>,
linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev,
kvm@vger.kernel.org, devicetree@vger.kernel.org,
dri-devel@lists.freedesktop.org, linux-doc@vger.kernel.org
Subject: Re: [RFC PATCH v2 02/15] misc/arm-cla: Add launch operation helpers
Date: Thu, 15 Oct 2026 17:32:18 +0100 [thread overview]
Message-ID: <e8d97f6c-8e22-4c85-b15d-6edade16d789@arm.com> (raw)
In-Reply-To: <2026101542-briskness-most-a8ca@gregkh>
On 15/10/2026 17:17, Greg Kroah-Hartman wrote:
> On Thu, Oct 15, 2026 at 03:25:36PM +0100, Ryan Roberts wrote:
>> From: Jean-Philippe Brucker <jpb@kernel.org>
>>
>> CLA commands are issued by writing optional payload registers,
>> programming the LAUNCH register and polling LRESP until the hardware
>> accepts or rejects the operation.
>>
>> Add a common launch helper that performs this sequence on the CLA's
>> local CPU, waits for LRESP completion and translates launch response
>> codes into Linux errors.
>>
>> Build accelerator reset and register read and write support on top of
>> it. The register read and write helpers split larger accesses into
>> multiple launch operations when an access crosses an eight-register
>> window.
>>
>> Signed-off-by: Jean-Philippe Brucker <jpb@kernel.org>
>
> You forgot to sign off on patches from others :(
Ahh sh*t, sorry about that. Hopefully given this is "just" an RFC that's not a
big deal? Else, let me know and I'll resend.
next prev parent reply other threads:[~2026-10-15 16:32 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-15 14:25 [RFC PATCH v2 00/15] Arm Core Local Accelerator Driver Ryan Roberts
2026-10-15 14:25 ` [RFC PATCH v2 01/15] misc/arm-cla: Add driver skeleton and documentation Ryan Roberts
2026-10-15 14:25 ` [RFC PATCH v2 02/15] misc/arm-cla: Add launch operation helpers Ryan Roberts
2026-10-15 16:17 ` Greg Kroah-Hartman
2026-10-15 16:32 ` Ryan Roberts [this message]
2026-10-15 14:25 ` [RFC PATCH v2 03/15] dt-bindings: misc: Add Arm Core Local Accelerator Ryan Roberts
2026-10-15 14:25 ` [RFC PATCH v2 04/15] misc/arm-cla: Probe firmware-described devices Ryan Roberts
2026-10-15 14:25 ` [RFC PATCH v2 05/15] misc/arm-cla: Initialize devices on CPU bringup Ryan Roberts
2026-10-15 14:25 ` [RFC PATCH v2 06/15] misc/arm-cla: Accelerator context save and restore Ryan Roberts
2026-10-15 14:25 ` [RFC PATCH v2 07/15] misc/arm-cla: Set up memory translation context Ryan Roberts
2026-10-15 14:25 ` [RFC PATCH v2 08/15] misc/arm-cla: Manage domain contexts Ryan Roberts
2026-10-15 14:25 ` [RFC PATCH v2 09/15] misc/arm-cla: Add userspace interface Ryan Roberts
2026-10-15 14:25 ` [RFC PATCH v2 10/15] KVM: arm64: Introduce support to pin VMIDs Ryan Roberts
2026-10-15 14:25 ` [RFC PATCH v2 11/15] KVM: arm64: Export stage-2 MMU config Ryan Roberts
2026-10-15 14:25 ` [RFC PATCH v2 12/15] vfio: Support VFIO devices that access the CPU MMU Ryan Roberts
2026-10-15 16:44 ` Jason Gunthorpe
2026-10-15 14:25 ` [RFC PATCH v2 13/15] misc/arm-cla: Add stage-2 MTC and VM context switch Ryan Roberts
2026-10-15 14:25 ` [RFC PATCH v2 14/15] misc/arm-cla: Support exclusive context assignment Ryan Roberts
2026-10-15 14:25 ` [RFC PATCH v2 15/15] misc/arm-cla: Add vfio-mdev user interface Ryan Roberts
2026-10-15 16:41 ` Jason Gunthorpe
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