Pull 5165 into release branch
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927fe18397
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@ -274,8 +274,6 @@ static void acpi_processor_idle(void)
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}
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}
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cx->usage++;
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#ifdef CONFIG_HOTPLUG_CPU
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/*
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* Check for P_LVL2_UP flag before entering C2 and above on
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@ -283,9 +281,12 @@ static void acpi_processor_idle(void)
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* detection phase, to work cleanly with logical CPU hotplug.
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*/
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if ((cx->type != ACPI_STATE_C1) && (num_online_cpus() > 1) &&
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!pr->flags.has_cst && acpi_fadt.plvl2_up)
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cx->type = ACPI_STATE_C1;
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!pr->flags.has_cst && !acpi_fadt.plvl2_up)
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cx = &pr->power.states[ACPI_STATE_C1];
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#endif
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cx->usage++;
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/*
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* Sleep:
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* ------
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@ -386,6 +387,15 @@ static void acpi_processor_idle(void)
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next_state = pr->power.state;
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#ifdef CONFIG_HOTPLUG_CPU
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/* Don't do promotion/demotion */
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if ((cx->type == ACPI_STATE_C1) && (num_online_cpus() > 1) &&
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!pr->flags.has_cst && !acpi_fadt.plvl2_up) {
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next_state = cx;
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goto end;
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}
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#endif
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/*
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* Promotion?
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* ----------
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@ -557,7 +567,7 @@ static int acpi_processor_get_power_info_fadt(struct acpi_processor *pr)
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* Check for P_LVL2_UP flag before entering C2 and above on
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* an SMP system.
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*/
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if ((num_online_cpus() > 1) && acpi_fadt.plvl2_up)
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if ((num_online_cpus() > 1) && !acpi_fadt.plvl2_up)
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return_VALUE(-ENODEV);
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#endif
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