固定GMAC1 网卡名为 eth3

hc

2024-11-15 a46a1ad097419aeea7350987dd95230f50d90392

 kernel/drivers/cpuidle/cpuidle.c
..
..
@@ -17,6 +17,7 @@
17
17
 #include <linux/pm_qos.h>
18
18
 #include <linux/cpu.h>
19
19
 #include <linux/cpuidle.h>
20
+#include <linux/irq_pipeline.h>
20
21
 #include <linux/ktime.h>
21
22
 #include <linux/hrtimer.h>
22
23
 #include <linux/module.h>
..
..
@@ -219,6 +220,22 @@
219
220
 	broadcast = !!(target_state->flags & CPUIDLE_FLAG_TIMER_STOP);
220
221
 
221
222
 	/*
223
+	 * A companion core running on the oob stage of the IRQ
224
+	 * pipeline may deny switching to a deeper C-state. If so,
225
+	 * call the default idle routine instead. If the core cannot
226
+	 * bear with the latency induced by the default idling
227
+	 * operation, then CPUIDLE is not usable and should be
228
+	 * disabled at build time. The in-band stage is currently
229
+	 * stalled, hard irqs are on. irq_cpuidle_enter() leaves us
230
+	 * stalled but returns with hard irqs off so that no event may
231
+	 * sneak in until we actually go idle.
232
+	 */
233
+	if (!irq_cpuidle_enter(dev, target_state)) {
234
+		default_idle_call();
235
+		return -EBUSY;
236
+	}
237
+
238
+	/*
222
239
 	 * Tell the time framework to switch to a broadcast timer because our
223
240
 	 * local timer will be shut down.  If a local timer is used from another
224
241
 	 * CPU as a broadcast timer, this call may fail if it is not available.
..
..
@@ -247,6 +264,7 @@
247
264
 	if (!(target_state->flags & CPUIDLE_FLAG_RCU_IDLE))
248
265
 		rcu_idle_enter();
249
266
 	entered_state = target_state->enter(dev, drv, index);
267
+	hard_cond_local_irq_enable();
250
268
 	if (!(target_state->flags & CPUIDLE_FLAG_RCU_IDLE))
251
269
 		rcu_idle_exit();
252
270
 	start_critical_timings();