From: will.deacon@arm.com (Will Deacon)
To: linus-amlogic@lists.infradead.org
Subject: [PATCH 2/2] firmware: qcom: scm: Fix interrupted SCM calls
Date: Tue, 6 Dec 2016 11:54:57 +0000 [thread overview]
Message-ID: <20161206115456.GC2498@arm.com> (raw)
In-Reply-To: <1480405463-23165-3-git-send-email-andy.gross@linaro.org>
On Tue, Nov 29, 2016 at 01:44:23AM -0600, Andy Gross wrote:
> This patch adds a Qualcomm specific quirk to the arm_smccc_smc call.
>
> On Qualcomm ARM64 platforms, the SMC call can return before it has
> completed. If this occurs, the call can be restarted, but it requires
> using the returned session ID value from the interrupted SMC call.
>
> The quirk stores off the session ID from the interrupted call in the
> quirk structure so that it can be used by the caller.
>
> This patch folds in a fix given by Sricharan R:
> https://lkml.org/lkml/2016/9/28/272
>
> Signed-off-by: Andy Gross <andy.gross@linaro.org>
> ---
> arch/arm64/kernel/smccc-call.S | 9 ++++++++-
> drivers/firmware/qcom_scm-64.c | 11 +++++++++--
> include/linux/arm-smccc.h | 11 ++++++++---
> 3 files changed, 25 insertions(+), 6 deletions(-)
Acked-by: Will Deacon <will.deacon@arm.com>
Will
WARNING: multiple messages have this Message-ID (diff)
From: Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>
To: Andy Gross <andy.gross-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
Cc: jesper.nilsson-VrBV9hrLPhE@public.gmane.org,
lorenzo.pieralisi-5wv7dgnIgG8@public.gmane.org,
heiko-4mtYJXux2i+zQB+pC5nmwQ@public.gmane.org,
linux-rockchip-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-I+IVW8TIWO2tmTQ+vhA3Yw@public.gmane.org,
matthias.bgg-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
Srinivas Kandagatla
<srinivas.kandagatla-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
lars.persson-VrBV9hrLPhE@public.gmane.org,
p.zabel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org,
niklas.cassel-VrBV9hrLPhE@public.gmane.org,
ck.hu-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org,
linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-amlogic-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
Bjorn Andersson
<bjorn.andersson-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
Kevin Hilman <khilman-rdvid1DuHRBWk0Htik3J/w@public.gmane.org>,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org
Subject: Re: [PATCH 2/2] firmware: qcom: scm: Fix interrupted SCM calls
Date: Tue, 6 Dec 2016 11:54:57 +0000 [thread overview]
Message-ID: <20161206115456.GC2498@arm.com> (raw)
In-Reply-To: <1480405463-23165-3-git-send-email-andy.gross-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
On Tue, Nov 29, 2016 at 01:44:23AM -0600, Andy Gross wrote:
> This patch adds a Qualcomm specific quirk to the arm_smccc_smc call.
>
> On Qualcomm ARM64 platforms, the SMC call can return before it has
> completed. If this occurs, the call can be restarted, but it requires
> using the returned session ID value from the interrupted SMC call.
>
> The quirk stores off the session ID from the interrupted call in the
> quirk structure so that it can be used by the caller.
>
> This patch folds in a fix given by Sricharan R:
> https://lkml.org/lkml/2016/9/28/272
>
> Signed-off-by: Andy Gross <andy.gross-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>
> ---
> arch/arm64/kernel/smccc-call.S | 9 ++++++++-
> drivers/firmware/qcom_scm-64.c | 11 +++++++++--
> include/linux/arm-smccc.h | 11 ++++++++---
> 3 files changed, 25 insertions(+), 6 deletions(-)
Acked-by: Will Deacon <will.deacon-5wv7dgnIgG8@public.gmane.org>
Will
WARNING: multiple messages have this Message-ID (diff)
From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 2/2] firmware: qcom: scm: Fix interrupted SCM calls
Date: Tue, 6 Dec 2016 11:54:57 +0000 [thread overview]
Message-ID: <20161206115456.GC2498@arm.com> (raw)
In-Reply-To: <1480405463-23165-3-git-send-email-andy.gross@linaro.org>
On Tue, Nov 29, 2016 at 01:44:23AM -0600, Andy Gross wrote:
> This patch adds a Qualcomm specific quirk to the arm_smccc_smc call.
>
> On Qualcomm ARM64 platforms, the SMC call can return before it has
> completed. If this occurs, the call can be restarted, but it requires
> using the returned session ID value from the interrupted SMC call.
>
> The quirk stores off the session ID from the interrupted call in the
> quirk structure so that it can be used by the caller.
>
> This patch folds in a fix given by Sricharan R:
> https://lkml.org/lkml/2016/9/28/272
>
> Signed-off-by: Andy Gross <andy.gross@linaro.org>
> ---
> arch/arm64/kernel/smccc-call.S | 9 ++++++++-
> drivers/firmware/qcom_scm-64.c | 11 +++++++++--
> include/linux/arm-smccc.h | 11 ++++++++---
> 3 files changed, 25 insertions(+), 6 deletions(-)
Acked-by: Will Deacon <will.deacon@arm.com>
Will
WARNING: multiple messages have this Message-ID (diff)
From: Will Deacon <will.deacon@arm.com>
To: Andy Gross <andy.gross@linaro.org>
Cc: linux-kernel@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux@armlinux.org.uk,
jesper.nilsson@axis.com, lars.persson@axis.com,
niklas.cassel@axis.com, heiko@sntech.de,
Kevin Hilman <khilman@baylibre.com>,
lorenzo.pieralisi@arm.com, ck.hu@mediatek.com,
p.zabel@pengutronix.de, matthias.bgg@gmail.com,
Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
linux-mediatek@lists.infradead.org,
linux-rockchip@lists.infradead.org,
linux-amlogic@lists.infradead.org
Subject: Re: [PATCH 2/2] firmware: qcom: scm: Fix interrupted SCM calls
Date: Tue, 6 Dec 2016 11:54:57 +0000 [thread overview]
Message-ID: <20161206115456.GC2498@arm.com> (raw)
In-Reply-To: <1480405463-23165-3-git-send-email-andy.gross@linaro.org>
On Tue, Nov 29, 2016 at 01:44:23AM -0600, Andy Gross wrote:
> This patch adds a Qualcomm specific quirk to the arm_smccc_smc call.
>
> On Qualcomm ARM64 platforms, the SMC call can return before it has
> completed. If this occurs, the call can be restarted, but it requires
> using the returned session ID value from the interrupted SMC call.
>
> The quirk stores off the session ID from the interrupted call in the
> quirk structure so that it can be used by the caller.
>
> This patch folds in a fix given by Sricharan R:
> https://lkml.org/lkml/2016/9/28/272
>
> Signed-off-by: Andy Gross <andy.gross@linaro.org>
> ---
> arch/arm64/kernel/smccc-call.S | 9 ++++++++-
> drivers/firmware/qcom_scm-64.c | 11 +++++++++--
> include/linux/arm-smccc.h | 11 ++++++++---
> 3 files changed, 25 insertions(+), 6 deletions(-)
Acked-by: Will Deacon <will.deacon@arm.com>
Will
next prev parent reply other threads:[~2016-12-06 11:54 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-29 7:44 [PATCH 0/2] Support ARM SMCC SoC vendor quirks Andy Gross
2016-11-29 7:44 ` Andy Gross
2016-11-29 7:44 ` Andy Gross
2016-11-29 7:44 ` [PATCH 1/2] arm: kernel: Add SMC structure parameter Andy Gross
2016-11-29 7:44 ` Andy Gross
2016-11-29 7:44 ` Andy Gross
2016-12-06 11:55 ` Will Deacon
2016-12-06 11:55 ` Will Deacon
2016-12-06 11:55 ` Will Deacon
2016-12-06 11:55 ` Will Deacon
2016-12-06 18:01 ` Andy Gross
2016-12-06 18:01 ` Andy Gross
2016-12-06 18:01 ` Andy Gross
2016-11-29 7:44 ` [PATCH 2/2] firmware: qcom: scm: Fix interrupted SCM calls Andy Gross
2016-11-29 7:44 ` Andy Gross
2016-11-29 7:44 ` Andy Gross
2016-12-06 11:54 ` Will Deacon [this message]
2016-12-06 11:54 ` Will Deacon
2016-12-06 11:54 ` Will Deacon
2016-12-06 11:54 ` Will Deacon
-- strict thread matches above, loose matches on Subject: below --
2016-08-20 5:51 [PATCH 0/2] Qualcomm SMCCC Session ID Support Andy Gross
2016-08-20 5:51 ` [PATCH 2/2] firmware: qcom: scm: Fix interrupted SCM calls Andy Gross
2016-08-20 5:51 ` Andy Gross
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