add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/cpuidle/poll_state.c
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@@ -1,7 +1,6 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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 /*
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  * poll_state.c - Polling idle state
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- *
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- * This file is released under the GPLv2.
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  */
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 #include <linux/cpuidle.h>
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@@ -9,7 +8,6 @@
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 #include <linux/sched/clock.h>
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 #include <linux/sched/idle.h>
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-#define POLL_IDLE_TIME_LIMIT	(TICK_NSEC / 16)
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 #define POLL_IDLE_RELAX_COUNT	200
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 static int __cpuidle poll_idle(struct cpuidle_device *dev,
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@@ -22,6 +20,9 @@
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 	local_irq_enable();
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 	if (!current_set_polling_and_test()) {
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 		unsigned int loop_count = 0;
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+		u64 limit;
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+
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+		limit = cpuidle_poll_time(drv, dev);
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 		while (!need_resched()) {
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 			cpu_relax();
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@@ -29,7 +30,7 @@
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 				continue;
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 			loop_count = 0;
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-			if (local_clock() - time_start > POLL_IDLE_TIME_LIMIT) {
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+			if (local_clock() - time_start > limit) {
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 				dev->poll_time_limit = true;
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 				break;
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 			}
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@@ -48,9 +49,10 @@
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 	snprintf(state->desc, CPUIDLE_DESC_LEN, "CPUIDLE CORE POLL IDLE");
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 	state->exit_latency = 0;
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 	state->target_residency = 0;
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+	state->exit_latency_ns = 0;
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+	state->target_residency_ns = 0;
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 	state->power_usage = -1;
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 	state->enter = poll_idle;
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-	state->disabled = false;
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 	state->flags = CPUIDLE_FLAG_POLLING;
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 }
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 EXPORT_SYMBOL_GPL(cpuidle_poll_state_init);