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@@ -252,6 +252,11 @@ static void power9_idle(void)
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*/
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u64 pnv_first_deep_stop_state = MAX_STOP_STATE;
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+/*
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+ * Deepest stop idle state. Used when a cpu is offlined
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+ */
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+u64 pnv_deepest_stop_state;
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+
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/*
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* Power ISA 3.0 idle initialization.
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*
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@@ -314,8 +319,11 @@ static int __init pnv_arch300_idle_init(struct device_node *np, u32 *flags,
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}
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/*
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- * Set pnv_first_deep_stop_state to the first stop level
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- * to cause hypervisor state loss
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+ * Set pnv_first_deep_stop_state and pnv_deepest_stop_state.
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+ * pnv_first_deep_stop_state should be set to the first stop
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+ * level to cause hypervisor state loss.
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+ * pnv_deepest_stop_state should be set to the deepest stop
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+ * stop state.
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*/
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pnv_first_deep_stop_state = MAX_STOP_STATE;
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for (i = 0; i < dt_idle_states; i++) {
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@@ -324,6 +332,9 @@ static int __init pnv_arch300_idle_init(struct device_node *np, u32 *flags,
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if ((flags[i] & OPAL_PM_LOSE_FULL_CONTEXT) &&
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(pnv_first_deep_stop_state > psscr_rl))
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pnv_first_deep_stop_state = psscr_rl;
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+
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+ if (pnv_deepest_stop_state < psscr_rl)
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+ pnv_deepest_stop_state = psscr_rl;
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}
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out:
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