From: shawn.guo@freescale.com (Shawn Guo)
To: linux-arm-kernel@lists.infradead.org
Subject: ARM diagnostic register across suspend/resume
Date: Tue, 17 Jun 2014 16:31:18 +0800 [thread overview]
Message-ID: <20140617083117.GD8860@dragon> (raw)
Hi Will, Catalin,
The CP15 diagnostic register holds some bits for ARM errata workaround.
Since core gets power gated across suspend/resume cycle, these bits will
get lost along the way. Is it okay for errata workaround to continue
working after suspend, or do we have to save/restore diagnostic register
to keep workaround effective?
Shawn
next reply other threads:[~2014-06-17 8:31 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-06-17 8:31 Shawn Guo [this message]
2014-06-17 9:57 ` ARM diagnostic register across suspend/resume Will Deacon
2014-06-17 10:16 ` Russell King - ARM Linux
2014-06-17 10:21 ` Will Deacon
2014-06-17 10:23 ` Russell King - ARM Linux
2014-06-17 10:25 ` Will Deacon
2014-06-17 13:03 ` Shawn Guo
2014-06-17 14:34 ` Will Deacon
2014-06-17 14:54 ` Shawn Guo
2014-06-17 13:08 ` Shawn Guo
2014-06-17 14:02 ` Shawn Guo
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