From: Alexandre Courbot <acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
To: Stephen Warren <swarren-3lzwWm7+Weoh9ZMKESR00Q@public.gmane.org>,
Thierry Reding
<thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Russell King <linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org>,
Tomasz Figa <t.figa-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
Cc: Olof Johansson <olof-nZhT3qVonbNeoWH0uzbU5w@public.gmane.org>,
linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org,
linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
gnurou-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org,
Alexandre Courbot
<acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Subject: [PATCH v2 6/6] ARM: tegra: cpuidle: use firmware for power down
Date: Fri, 7 Feb 2014 13:35:06 +0900 [thread overview]
Message-ID: <1391747706-1847-7-git-send-email-acourbot@nvidia.com> (raw)
In-Reply-To: <1391747706-1847-1-git-send-email-acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
Attempt to invoke the prepare_idle() and do_idle() firmware calls
to power down a CPU so an underlying firmware gets informed of
the idle operation and performs it by itself if designed in such a way.
Signed-off-by: Alexandre Courbot <acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
---
arch/arm/mach-tegra/cpuidle-tegra114.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-tegra/cpuidle-tegra114.c b/arch/arm/mach-tegra/cpuidle-tegra114.c
index e0b87300243d..558067ddc186 100644
--- a/arch/arm/mach-tegra/cpuidle-tegra114.c
+++ b/arch/arm/mach-tegra/cpuidle-tegra114.c
@@ -19,6 +19,7 @@
#include <linux/cpuidle.h>
#include <linux/cpu_pm.h>
#include <linux/clockchips.h>
+#include <asm/firmware.h>
#include <asm/cpuidle.h>
#include <asm/suspend.h>
@@ -45,7 +46,15 @@ static int tegra114_idle_power_down(struct cpuidle_device *dev,
clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &dev->cpu);
- cpu_suspend(0, tegra30_sleep_cpu_secondary_finish);
+ call_firmware_op(prepare_idle);
+
+ switch (call_firmware_op(do_idle)) {
+ case -ENOSYS:
+ cpu_suspend(0, tegra30_sleep_cpu_secondary_finish);
+ break;
+ default:
+ break;
+ }
clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &dev->cpu);
--
1.8.5.3
WARNING: multiple messages have this Message-ID (diff)
From: Alexandre Courbot <acourbot@nvidia.com>
To: Stephen Warren <swarren@wwwdotorg.org>,
Thierry Reding <thierry.reding@gmail.com>,
Russell King <linux@arm.linux.org.uk>,
Tomasz Figa <t.figa@samsung.com>
Cc: Olof Johansson <olof@lixom.net>,
<linux-arm-kernel@lists.infradead.org>,
<linux-tegra@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<gnurou@gmail.com>, Alexandre Courbot <acourbot@nvidia.com>
Subject: [PATCH v2 6/6] ARM: tegra: cpuidle: use firmware for power down
Date: Fri, 7 Feb 2014 13:35:06 +0900 [thread overview]
Message-ID: <1391747706-1847-7-git-send-email-acourbot@nvidia.com> (raw)
In-Reply-To: <1391747706-1847-1-git-send-email-acourbot@nvidia.com>
Attempt to invoke the prepare_idle() and do_idle() firmware calls
to power down a CPU so an underlying firmware gets informed of
the idle operation and performs it by itself if designed in such a way.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
---
arch/arm/mach-tegra/cpuidle-tegra114.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-tegra/cpuidle-tegra114.c b/arch/arm/mach-tegra/cpuidle-tegra114.c
index e0b87300243d..558067ddc186 100644
--- a/arch/arm/mach-tegra/cpuidle-tegra114.c
+++ b/arch/arm/mach-tegra/cpuidle-tegra114.c
@@ -19,6 +19,7 @@
#include <linux/cpuidle.h>
#include <linux/cpu_pm.h>
#include <linux/clockchips.h>
+#include <asm/firmware.h>
#include <asm/cpuidle.h>
#include <asm/suspend.h>
@@ -45,7 +46,15 @@ static int tegra114_idle_power_down(struct cpuidle_device *dev,
clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &dev->cpu);
- cpu_suspend(0, tegra30_sleep_cpu_secondary_finish);
+ call_firmware_op(prepare_idle);
+
+ switch (call_firmware_op(do_idle)) {
+ case -ENOSYS:
+ cpu_suspend(0, tegra30_sleep_cpu_secondary_finish);
+ break;
+ default:
+ break;
+ }
clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &dev->cpu);
--
1.8.5.3
WARNING: multiple messages have this Message-ID (diff)
From: acourbot@nvidia.com (Alexandre Courbot)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 6/6] ARM: tegra: cpuidle: use firmware for power down
Date: Fri, 7 Feb 2014 13:35:06 +0900 [thread overview]
Message-ID: <1391747706-1847-7-git-send-email-acourbot@nvidia.com> (raw)
In-Reply-To: <1391747706-1847-1-git-send-email-acourbot@nvidia.com>
Attempt to invoke the prepare_idle() and do_idle() firmware calls
to power down a CPU so an underlying firmware gets informed of
the idle operation and performs it by itself if designed in such a way.
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
---
arch/arm/mach-tegra/cpuidle-tegra114.c | 11 ++++++++++-
1 file changed, 10 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-tegra/cpuidle-tegra114.c b/arch/arm/mach-tegra/cpuidle-tegra114.c
index e0b87300243d..558067ddc186 100644
--- a/arch/arm/mach-tegra/cpuidle-tegra114.c
+++ b/arch/arm/mach-tegra/cpuidle-tegra114.c
@@ -19,6 +19,7 @@
#include <linux/cpuidle.h>
#include <linux/cpu_pm.h>
#include <linux/clockchips.h>
+#include <asm/firmware.h>
#include <asm/cpuidle.h>
#include <asm/suspend.h>
@@ -45,7 +46,15 @@ static int tegra114_idle_power_down(struct cpuidle_device *dev,
clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &dev->cpu);
- cpu_suspend(0, tegra30_sleep_cpu_secondary_finish);
+ call_firmware_op(prepare_idle);
+
+ switch (call_firmware_op(do_idle)) {
+ case -ENOSYS:
+ cpu_suspend(0, tegra30_sleep_cpu_secondary_finish);
+ break;
+ default:
+ break;
+ }
clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &dev->cpu);
--
1.8.5.3
next prev parent reply other threads:[~2014-02-07 4:35 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-07 4:35 [PATCH v2 0/6] ARM: firmware: improvements to Trusted Foundations support Alexandre Courbot
2014-02-07 4:35 ` Alexandre Courbot
2014-02-07 4:35 ` Alexandre Courbot
2014-02-07 4:35 ` [PATCH v2 1/6] ARM: trusted_foundations: fix vendor prefix typos Alexandre Courbot
2014-02-07 4:35 ` Alexandre Courbot
2014-02-07 4:35 ` Alexandre Courbot
2014-02-07 4:35 ` [PATCH v2 2/6] ARM: trusted_foundations: fallback when TF support is missing Alexandre Courbot
2014-02-07 4:35 ` Alexandre Courbot
2014-02-07 4:35 ` Alexandre Courbot
2014-02-07 4:35 ` [PATCH v2 3/6] ARM: firmware: enable Trusted Foundations by default Alexandre Courbot
2014-02-07 4:35 ` Alexandre Courbot
2014-02-07 4:35 ` Alexandre Courbot
2014-02-07 4:35 ` [PATCH v2 4/6] ARM: firmware: add prepare_idle() operation Alexandre Courbot
2014-02-07 4:35 ` Alexandre Courbot
2014-02-07 4:35 ` Alexandre Courbot
[not found] ` <1391747706-1847-5-git-send-email-acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2014-02-13 11:01 ` Tomasz Figa
2014-02-13 11:01 ` Tomasz Figa
2014-02-13 11:01 ` Tomasz Figa
[not found] ` <52FCA5FC.80504-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>
2014-02-13 16:37 ` Stephen Warren
2014-02-13 16:37 ` Stephen Warren
2014-02-13 16:37 ` Stephen Warren
2014-02-14 5:16 ` Alexandre Courbot
2014-02-14 5:16 ` Alexandre Courbot
2014-02-14 5:16 ` Alexandre Courbot
[not found] ` <52FDA6B4.6070404-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2014-02-14 10:42 ` Tomasz Figa
2014-02-14 10:42 ` Tomasz Figa
2014-02-14 10:42 ` Tomasz Figa
2014-02-07 4:35 ` [PATCH v2 5/6] ARM: trusted_foundations: implement prepare_idle() Alexandre Courbot
2014-02-07 4:35 ` Alexandre Courbot
2014-02-07 4:35 ` Alexandre Courbot
[not found] ` <1391747706-1847-1-git-send-email-acourbot-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2014-02-07 4:35 ` Alexandre Courbot [this message]
2014-02-07 4:35 ` [PATCH v2 6/6] ARM: tegra: cpuidle: use firmware for power down Alexandre Courbot
2014-02-07 4:35 ` Alexandre Courbot
2014-02-12 1:36 ` Olof Johansson
2014-02-12 1:36 ` Olof Johansson
[not found] ` <20140212013650.GA7584-O5ziIzlqnXUVNXGz7ipsyg@public.gmane.org>
2014-02-12 1:56 ` Alexandre Courbot
2014-02-12 1:56 ` Alexandre Courbot
2014-02-12 1:56 ` Alexandre Courbot
[not found] ` <52FAD4C2.80803-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2014-02-12 2:43 ` [PATCH v3] " Alexandre Courbot
2014-02-12 2:43 ` Alexandre Courbot
2014-02-12 2:43 ` Alexandre Courbot
2014-02-12 20:04 ` Olof Johansson
2014-02-12 20:04 ` Olof Johansson
2014-02-12 20:04 ` Olof Johansson
2014-02-18 20:56 ` [PATCH v2 0/6] ARM: firmware: improvements to Trusted Foundations support Stephen Warren
2014-02-18 20:56 ` Stephen Warren
2014-02-18 20:56 ` Stephen Warren
2014-02-12 1:38 ` Olof Johansson
2014-02-12 1:38 ` Olof Johansson
[not found] ` <20140212013846.GB7584-O5ziIzlqnXUVNXGz7ipsyg@public.gmane.org>
2014-02-12 20:07 ` Stephen Warren
2014-02-12 20:07 ` Stephen Warren
2014-02-12 20:07 ` Stephen Warren
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