diff options
| author | Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com> | 2025-02-05 17:52:09 +0200 |
|---|---|---|
| committer | Dave Hansen <dave.hansen@linux.intel.com> | 2025-02-05 10:44:52 -0800 |
| commit | 541ddf31e30022b8e6f44b3a943964e8f0989d15 (patch) | |
| tree | 2e5829b1d5349e06d9acf44ad24a6ad928fa4d58 /drivers/acpi/processor_idle.c | |
| parent | a7dd183f0b3848c056bbeed78ef5d5c52fe94d83 (diff) | |
ACPI/processor_idle: Add FFH state handling
Recent Intel platforms will depend on the idle driver to pass the
correct hint for playing dead via mwait_play_dead_with_hint(). Expand
the existing enter_dead interface with handling for FFH states and pass
the MWAIT hint to the mwait_play_dead code.
Suggested-by: Gautham R. Shenoy <gautham.shenoy@amd.com>
Signed-off-by: Patryk Wlazlyn <patryk.wlazlyn@linux.intel.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Link: https://lore.kernel.org/all/20250205155211.329780-3-artem.bityutskiy%40linux.intel.com
Diffstat (limited to 'drivers/acpi/processor_idle.c')
| -rw-r--r-- | drivers/acpi/processor_idle.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 698897b29de2..586cc7d1d8aa 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -590,6 +590,8 @@ static void acpi_idle_play_dead(struct cpuidle_device *dev, int index) raw_safe_halt(); else if (cx->entry_method == ACPI_CSTATE_SYSTEMIO) { io_idle(cx->address); + } else if (cx->entry_method == ACPI_CSTATE_FFH) { + acpi_processor_ffh_play_dead(cx); } else return; } |