From: Jens Wiklander <jens.wiklander@linaro.org>
To: Sudeep Holla <sudeep.holla@arm.com>
Cc: Linux ARM <linux-arm-kernel@lists.infradead.org>,
Devicetree List <devicetree@vger.kernel.org>,
Trilok Soni <tsoni@codeaurora.org>,
arve@android.com, Andrew Walbran <qwandor@google.com>,
David Hartley <dhh@qti.qualcomm.com>,
Achin Gupta <Achin.Gupta@arm.com>,
Arunachalam Ganapathy <arunachalam.ganapathy@arm.com>
Subject: Re: [PATCH v3 6/7] firmware: arm_ffa: Setup in-kernel users of FFA partitions
Date: Wed, 13 Jan 2021 08:10:08 +0100 [thread overview]
Message-ID: <20210113071008.GA3643006@jade> (raw)
In-Reply-To: <20210112180414.ejcuhdf563hraqzx@bogus>
On Tue, Jan 12, 2021 at 06:04:14PM +0000, Sudeep Holla wrote:
> (sorry for late reply)
>
> On Fri, Dec 11, 2020 at 11:45:08AM +0100, Jens Wiklander wrote:
> > On Fri, Dec 4, 2020 at 1:11 PM Sudeep Holla <sudeep.holla@arm.com> wrote:
>
> [...]
>
> Agreed on all the comments, so have just removed those context.
>
> > We may need a way to indicate if we're to use the 32bit or 64bit
> > calling convention. OP-TEE depends on being able to use 32bit calls
> > here.
>
> I assume it would be OP-TEE indicating it would like to use 32-bit.
> I am thinking of API from the driver would be like:
>
> int (*32bit_mode_only_set)(struct ffa_device *dev);
>
> Let me know if that works for you. FF-A driver has no other way to evaluate
> that and I really don't like that in DT 😉
That should work for OP-TEE.
Thanks,
Jens
next prev parent reply other threads:[~2021-01-13 7:10 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-04 12:11 [PATCH v3 0/7] firmware: Add initial support for Arm FF-A Sudeep Holla
2020-12-04 12:11 ` [PATCH v3 1/7] dt-bindings: Arm: Add Firmware Framework for Armv8-A (FF-A) binding Sudeep Holla
2020-12-14 22:01 ` Rob Herring
2020-12-16 12:24 ` Sudeep Holla
2020-12-16 13:46 ` Jens Wiklander
2021-01-13 10:00 ` Sudeep Holla
2020-12-04 12:11 ` [PATCH v3 2/7] arm64: smccc: Add support for SMCCCv1.2 input/output registers Sudeep Holla
2020-12-04 12:11 ` [PATCH v3 3/7] firmware: arm_ffa: Add initial FFA bus support for device enumeration Sudeep Holla
2020-12-04 12:11 ` [PATCH v3 4/7] firmware: arm_ffa: Add initial Arm FFA driver support Sudeep Holla
2020-12-04 12:11 ` [PATCH v3 5/7] firmware: arm_ffa: Add support for SMCCC as transport to FFA driver Sudeep Holla
2020-12-04 12:11 ` [PATCH v3 6/7] firmware: arm_ffa: Setup in-kernel users of FFA partitions Sudeep Holla
2020-12-07 12:30 ` Jens Wiklander
2021-01-13 9:22 ` Sudeep Holla
2020-12-11 10:45 ` Jens Wiklander
2020-12-11 10:59 ` Jens Wiklander
2021-01-13 9:44 ` Sudeep Holla
2021-01-13 12:30 ` Jens Wiklander
2021-01-13 13:58 ` Achin Gupta
2021-01-13 17:20 ` Sudeep Holla
2021-01-14 6:48 ` Jens Wiklander
2021-01-12 18:04 ` Sudeep Holla
2021-01-13 7:10 ` Jens Wiklander [this message]
2020-12-04 12:11 ` [PATCH v3 7/7] firmware: arm_ffa: Add support for MEM_* interfaces Sudeep Holla
2020-12-11 10:54 ` Jens Wiklander
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