From: sophian.yoma@gmail.com (yoma sophian)
To: linux-arm-kernel@lists.infradead.org
Subject: how to enable suspend to ram for arm-64 bits
Date: Thu, 18 Aug 2016 10:07:59 +0800 [thread overview]
Message-ID: <CADUS3onUDk_=UpRoZy1m0hV1VGZYSf22ea8D10MpDbqJCfTkqw@mail.gmail.com> (raw)
In-Reply-To: <06a4f0d7-9022-578d-99e0-ddcde31ed895@arm.com>
hi Sudeep
> Correct. What's the cpu enable method on your platform ? Is it PSCI ?
No, the enable method is "spin-table"
> If yes, does you PSCI implementation support SYSTEM_SUSPEND ? If yes,
> it should work. Check your PSCI implementation otherwise.
if so, there are 2 things make me curious:
a. I trace arch/arm64/kernel/psci.c even arch/arm64/*, but I sill
cannot find where it create global suspend method table with
suspend_set_ops.
# grep -rnw 'suspend_set_ops' ../linux-4.1/arch/arm64/
#
except arch/xxx folder, there are
../linux-4.1/drivers/macintosh/via-pmu.c:2276: suspend_set_ops(&pmu_pm_ops);
../linux-4.1/drivers/acpi/sleep.c:666: suspend_set_ops(old_suspend_ordering ?
Does that mean aarch64 register suspend_set_ops by apci flow when
adopt PSCI implementation?
b. in arm64, if some platform has its own suspend flow, couldn't it
adopts arm/match-xxx to register its own global suspend method?
appreciate your kind help,
next prev parent reply other threads:[~2016-08-18 2:07 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-17 17:26 how to enable suspend to ram for arm-64 bits yoma sophian
2016-08-17 17:49 ` Sudeep Holla
2016-08-18 2:07 ` yoma sophian [this message]
2016-08-18 8:47 ` Sudeep Holla
2016-08-18 10:43 ` yoma sophian
2016-08-18 10:52 ` Sudeep Holla
2016-08-22 14:41 ` yoma sophian
2016-08-22 15:00 ` Sudeep Holla
2016-10-18 10:00 ` Pavel Machek
2016-10-18 10:21 ` Sudeep Holla
2016-10-18 10:28 ` Lorenzo Pieralisi
2016-10-18 10:45 ` Mark Rutland
2016-10-18 10:59 ` Sudeep Holla
2016-10-19 7:18 ` yoma sophian
2016-10-19 9:42 ` Pavel Machek
2016-10-19 13:11 ` Mark Rutland
2016-11-03 9:57 ` Pavel Machek
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