From: jszhang@marvell.com (Jisheng Zhang)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC] how to implement suspend to ram for arm64?
Date: Thu, 8 Jan 2015 19:54:08 +0800 [thread overview]
Message-ID: <20150108195408.01a8dfdb@xhacker> (raw)
Hi list,
we need the suspend to ram feature on arm64. And I think the fundamental code
is ready, for example __cpu_suspend() etc.
However, there are several issues need to be resolved...
1. where to put platform_suspend_ops implementation? drivers/power?
2. If the "put ddr to self refresh" code must be in EL3 or secure EL1, how
linux tell the firmware to trigger it? extend PSCI or use the context_id
of PSCI CPU_SUSPEND function?
3. where to put the cod of invoke suspend_to_ram psci call?
Thanks in advance,
Jisheng
next reply other threads:[~2015-01-08 11:54 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-08 11:54 Jisheng Zhang [this message]
2015-01-08 13:49 ` [RFC] how to implement suspend to ram for arm64? Lorenzo Pieralisi
2015-01-08 13:55 ` Jisheng Zhang
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