diff options
| author | Li, Aubrey <[email protected]> | 2015-03-11 16:09:00 +0800 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2015-03-12 12:07:13 +0100 |
| commit | 7486341a98f26857f383aec88ffa10950087c3a1 (patch) | |
| tree | 8b21ca05646e33ad9853e223c1b3fbaf5b17b790 /tools/perf/scripts/python/bin/export-to-postgresql-report | |
| parent | 394838c96013ba414a24ffe7a2a593a9154daadf (diff) | |
x86/platform, acpi: Bypass legacy PIC and PIT in ACPI hardware reduced mode
On a platform in ACPI Hardware-reduced mode, the legacy PIC and
PIT may not be initialized even though they may be present in
silicon. Touching these legacy components causes unexpected
results on the system.
On the Bay Trail-T(ASUS-T100) platform, touching these legacy
components blocks platform hardware low idle power state(S0ix)
during system suspend. So we should bypass them in ACPI hardware
reduced mode.
Suggested-by: Arjan van de Ven <[email protected]>
Signed-off-by: Li Aubrey <[email protected]>
Cc: <[email protected]>
Cc: Alan Cox <[email protected]>
Cc: H. Peter Anvin <[email protected]>
Cc: Len Brown <[email protected]>
Cc: Rafael J. Wysocki <[email protected]>
Cc: Rafael J. Wysocki <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/bin/export-to-postgresql-report')
0 files changed, 0 insertions, 0 deletions