From: Derek Basehore <dbasehore@chromium.org>
To: linux-kernel@vger.kernel.org
Cc: linux-pm@vger.kernel.org, rafael.j.wysocki@intel.com,
tglx@linutronix.de, briannorris@chromium.org,
marc.zyngier@arm.com, Derek Basehore <dbasehore@chromium.org>
Subject: [PATCH 0/8] GICv3 Save and Restore
Date: Fri, 12 Jan 2018 13:24:14 -0800 [thread overview]
Message-ID: <20180112212422.148625-1-dbasehore@chromium.org> (raw)
This patch set adds saving and restoring the GIC on v3
implementations through a devicetree flag.
The new CPU_PM state was the cleanest way to synchronize the save and
restore (that I figured out) with other PM operations since this isn't
going into any PSCI implementations (at least not in
ARM-Trusted-Firmware).
I've verified these patches on a Rockchip RK3399 platform (some
devicetree changes needed). This included turning off the power rail
for the GIC during suspend.
Derek Basehore (8):
cpu_pm: add syscore_suspend error handling
lib/iomap_copy: add __ioread64_copy()
cpu_pm: Add SYSTEM_PM state
irqchip/gic-v3: add ability to save/restore GIC/ITS state
DT/arm,gic-v3: add save-suspend-state property
irqchip/gic-v3-its: add ability to resend MAPC on resume
DT/arm,gic-v3: add resend-mapc-on-resume property
irqchip/gic-v3: add power down/up sequence
.../bindings/interrupt-controller/arm,gic-v3.txt | 43 +++
drivers/irqchip/irq-gic-v3-its.c | 136 +++++--
drivers/irqchip/irq-gic-v3.c | 391 ++++++++++++++++++++-
include/linux/cpu_pm.h | 14 +
include/linux/io.h | 1 +
include/linux/irqchip/arm-gic-v3.h | 26 ++
kernel/cpu_pm.c | 75 ++--
lib/iomap_copy.c | 26 ++
8 files changed, 640 insertions(+), 72 deletions(-)
--
2.16.0.rc1.238.g530d649a79-goog
next reply other threads:[~2018-01-12 21:24 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-12 21:24 Derek Basehore [this message]
2018-01-12 21:24 ` [PATCH 1/8] cpu_pm: add syscore_suspend error handling Derek Basehore
2018-01-12 22:07 ` Brian Norris
2018-01-12 21:24 ` [PATCH 2/8] lib/iomap_copy: add __ioread64_copy() Derek Basehore
2018-01-12 21:24 ` [PATCH 3/8] cpu_pm: Add SYSTEM_PM state Derek Basehore
2018-01-12 21:24 ` [PATCH 4/8] irqchip/gic-v3: add ability to save/restore GIC/ITS state Derek Basehore
2018-01-13 18:10 ` Marc Zyngier
2018-01-18 23:33 ` Brian Norris
2018-01-19 9:22 ` Marc Zyngier
2018-01-19 22:58 ` dbasehore .
2018-01-12 21:24 ` [PATCH 5/8] DT/arm,gic-v3: add save-suspend-state property Derek Basehore
2018-01-14 10:48 ` Marc Zyngier
2018-01-12 21:24 ` [PATCH 6/8] irqchip/gic-v3-its: add ability to resend MAPC on resume Derek Basehore
2018-01-14 10:56 ` Marc Zyngier
2018-01-25 23:07 ` dbasehore .
2018-01-12 21:24 ` [PATCH 7/8] DT/arm,gic-v3: add resend-mapc-on-resume property Derek Basehore
2018-01-12 21:24 ` [PATCH 8/8] irqchip/gic-v3: add power down/up sequence Derek Basehore
2018-01-14 11:04 ` Marc Zyngier
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