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| author | Nick Hu <nick.hu@sifive.com> | 2025-12-02 14:07:41 +0800 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2025-12-16 19:08:43 +0100 |
| commit | 95a8ddde36601d0a645475fb080ed118db59c8c3 (patch) | |
| tree | 1451dc89f092ba95b3cf5f5d5b1776cd0068aaef /tools/perf/lib/Documentation/tutorial/git@git.tavy.me:linux.git | |
| parent | f48b4bd0915bf61ac12b8c65c7939ebd03bc8abf (diff) | |
irqchip/riscv-aplic: Preserve APLIC states across suspend/resume
The APLIC states might be reset when the platform enters a low power
state, but the register states are not being preserved and restored,
which prevents interrupt delivery after the platform resumes.
Solve this by adding a syscore ops and a power management notifier to
preserve and restore the APLIC states on suspend and resume.
[ tglx: Folded the build fix provided by Geert ]
Signed-off-by: Nick Hu <nick.hu@sifive.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Yong-Xuan Wang <yongxuan.wang@sifive.com>
Reviewed-by: Cyan Yang <cyan.yang@sifive.com>
Reviewed-by: Nutty Liu <liujingqi@lanxincomputing.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Link: https://patch.msgid.link/20251202-preserve-aplic-imsic-v3-2-1844fbf1fe92@sifive.com
Diffstat (limited to 'tools/perf/lib/Documentation/tutorial/git@git.tavy.me:linux.git')
0 files changed, 0 insertions, 0 deletions