Murali Nalajala 6df9e96aa1 cpu_pm: Add level to the cluster pm notification ...

Cluster pm notifications without level information increases difficulty
and complexity for the registered drivers to figure out when the last
coherency level is going into power collapse.

Send notifications with level information that allows the registered
drivers to easily determine the cluster level that is going in/out of
power collapse.

There is an issue with this implementation. GIC driver saves and
restores the distributed registers as part of cluster notifications. On
newer platforms there are multiple cluster levels are defined (e.g l2,
cci etc). These cluster level notifications can happen independently. On
MSM platforms GIC is still active while the cluster sleeps in idle,
causing the GIC state to be overwritten with an incorrect previous state
of the interrupts. This leads to a system hang. Do not save and restore
on any L2 and higher cache coherency level sleep entry and exit.

Change-Id: I31918d6383f19e80fe3b064cfaf0b55e16b97eb6
Signed-off-by: Archana Sathyakumar <asathyak@codeaurora.org>
Signed-off-by: Murali Nalajala <mnalajal@codeaurora.org>
Signed-off-by: Mahesh Sivasubramanian <msivasub@codeaurora.org>
Signed-off-by: Stepan Moskovchenko <stepanm@codeaurora.org>

2017-12-21 21:47:10 +00:00

..

core.h

License cleanup: add SPDX GPL-2.0 license identifier to files with no license

2017-11-02 11:10:55 +01:00

highbank.c

arm: Remove unnecessary of_platform_populate with default match table

2016-06-23 14:58:37 -05:00

Kconfig

ARM: use "depends on" for SoC configs instead of "if" after prompt

2015-12-01 22:44:51 +01:00

Makefile

ARM: highbank: adapt to use ARM PSCI calls

2013-10-01 16:34:16 -05:00

pm.c

cpu_pm: Add level to the cluster pm notification

2017-12-21 21:47:10 +00:00

smc.S

…

sysregs.h

ARM: highbank: mask cluster id from cpu_logical_map

2013-01-31 13:54:30 -06:00

system.c

reboot: arm: change reboot_mode to use enum reboot_mode

2013-07-09 10:33:29 -07:00