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ACPI: processor idle: Allow playing dead in C3 state
When some cores are disabled on AMD platforms, the system will no longer be able to enter suspend-to-idle s0ix. Update to allow playing dead in C3 state so that the CPUs can enter the deepest state on AMD platforms. BugLink: https://gitlab.freedesktop.org/drm/amd/-/issues/1708 Suggested-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Richard Gong <richard.gong@amd.com> [ rjw: Fixed coding style ] Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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1 changed files with 2 additions and 1 deletions
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@ -789,7 +789,8 @@ static int acpi_processor_setup_cstates(struct acpi_processor *pr)
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state->enter = acpi_idle_enter;
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state->flags = 0;
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if (cx->type == ACPI_STATE_C1 || cx->type == ACPI_STATE_C2) {
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if (cx->type == ACPI_STATE_C1 || cx->type == ACPI_STATE_C2 ||
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cx->type == ACPI_STATE_C3) {
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state->enter_dead = acpi_idle_play_dead;
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drv->safe_state_index = count;
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}
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