gmac get mac form eeprom

hc

2024-11-01 7e970c18f85f99acc678d90128b6e01dce1bf273

 kernel/arch/x86/kernel/apic/vector.c
..
..
@@ -39,7 +39,7 @@
39
39
 
40
40
 struct irq_domain *x86_vector_domain;
41
41
 EXPORT_SYMBOL_GPL(x86_vector_domain);
42
-static DEFINE_RAW_SPINLOCK(vector_lock);
42
+static DEFINE_HARD_SPINLOCK(vector_lock);
43
43
 static cpumask_var_t vector_searchmask;
44
44
 static struct irq_chip lapic_controller;
45
45
 static struct irq_matrix *vector_matrix;
..
..
@@ -757,6 +757,10 @@
757
757
 {
758
758
 	int isairq = vector - ISA_IRQ_VECTOR(0);
759
759
 
760
+	/* Copy the cleanup vector if irqs are pipelined. */
761
+	if (IS_ENABLED(CONFIG_IRQ_PIPELINE) &&
762
+		vector == IRQ_MOVE_CLEANUP_VECTOR)
763
+		return irq_to_desc(IRQ_MOVE_CLEANUP_VECTOR); /* 1:1 mapping */
760
764
 	/* Check whether the irq is in the legacy space */
761
765
 	if (isairq < 0 || isairq >= nr_legacy_irqs())
762
766
 		return VECTOR_UNUSED;
..
..
@@ -791,15 +795,19 @@
791
795
 
792
796
 void lapic_offline(void)
793
797
 {
794
-	lock_vector_lock();
798
+	unsigned long flags;
799
+
800
+	raw_spin_lock_irqsave(&vector_lock, flags);
795
801
 	irq_matrix_offline(vector_matrix);
796
-	unlock_vector_lock();
802
+	raw_spin_unlock_irqrestore(&vector_lock, flags);
797
803
 }
798
804
 
799
805
 static int apic_set_affinity(struct irq_data *irqd,
800
806
 			     const struct cpumask *dest, bool force)
801
807
 {
802
808
 	int err;
809
+
810
+	WARN_ON_ONCE(irqs_pipelined() && !hard_irqs_disabled());
803
811
 
804
812
 	if (WARN_ON_ONCE(!irqd_is_activated(irqd)))
805
813
 		return -EIO;
..
..
@@ -830,10 +838,44 @@
830
838
 	return 1;
831
839
 }
832
840
 
833
-void apic_ack_irq(struct irq_data *irqd)
841
+#if defined(CONFIG_IRQ_PIPELINE) &&	\
842
+	defined(CONFIG_GENERIC_PENDING_IRQ)
843
+
844
+static void apic_deferred_irq_move(struct irq_work *work)
845
+{
846
+	struct irq_data *irqd;
847
+	struct irq_desc *desc;
848
+	unsigned long flags;
849
+
850
+	irqd = container_of(work, struct irq_data, move_work);
851
+	desc = irq_data_to_desc(irqd);
852
+	raw_spin_lock_irqsave(&desc->lock, flags);
853
+	__irq_move_irq(irqd);
854
+	raw_spin_unlock_irqrestore(&desc->lock, flags);
855
+}
856
+
857
+static inline void apic_move_irq(struct irq_data *irqd)
858
+{
859
+	if (irqd_is_setaffinity_pending(irqd) &&
860
+		!irqd_is_setaffinity_blocked(irqd)) {
861
+		init_irq_work(&irqd->move_work, apic_deferred_irq_move);
862
+		irq_work_queue(&irqd->move_work);
863
+	}
864
+}
865
+
866
+#else
867
+
868
+static inline void apic_move_irq(struct irq_data *irqd)
834
869
 {
835
870
 	irq_move_irq(irqd);
836
-	ack_APIC_irq();
871
+}
872
+
873
+#endif
874
+
875
+void apic_ack_irq(struct irq_data *irqd)
876
+{
877
+	apic_move_irq(irqd);
878
+	__ack_APIC_irq();
837
879
 }
838
880
 
839
881
 void apic_ack_edge(struct irq_data *irqd)
..
..
@@ -876,15 +918,17 @@
876
918
 	apicd->move_in_progress = 0;
877
919
 }
878
920
 
879
-DEFINE_IDTENTRY_SYSVEC(sysvec_irq_move_cleanup)
921
+DEFINE_IDTENTRY_SYSVEC_PIPELINED(IRQ_MOVE_CLEANUP_VECTOR,
922
+				 sysvec_irq_move_cleanup)
880
923
 {
881
924
 	struct hlist_head *clhead = this_cpu_ptr(&cleanup_list);
882
925
 	struct apic_chip_data *apicd;
883
926
 	struct hlist_node *tmp;
927
+	unsigned long flags;
884
928
 
885
929
 	ack_APIC_irq();
886
930
 	/* Prevent vectors vanishing under us */
887
-	raw_spin_lock(&vector_lock);
931
+	raw_spin_lock_irqsave(&vector_lock, flags);
888
932
 
889
933
 	hlist_for_each_entry_safe(apicd, tmp, clhead, clist) {
890
934
 		unsigned int irr, vector = apicd->prev_vector;
..
..
@@ -906,14 +950,15 @@
906
950
 		free_moved_vector(apicd);
907
951
 	}
908
952
 
909
-	raw_spin_unlock(&vector_lock);
953
+	raw_spin_unlock_irqrestore(&vector_lock, flags);
910
954
 }
911
955
 
912
956
 static void __send_cleanup_vector(struct apic_chip_data *apicd)
913
957
 {
958
+	unsigned long flags;
914
959
 	unsigned int cpu;
915
960
 
916
-	raw_spin_lock(&vector_lock);
961
+	raw_spin_lock_irqsave(&vector_lock, flags);
917
962
 	apicd->move_in_progress = 0;
918
963
 	cpu = apicd->prev_cpu;
919
964
 	if (cpu_online(cpu)) {
..
..
@@ -922,7 +967,7 @@
922
967
 	} else {
923
968
 		apicd->prev_vector = 0;
924
969
 	}
925
-	raw_spin_unlock(&vector_lock);
970
+	raw_spin_unlock_irqrestore(&vector_lock, flags);
926
971
 }
927
972
 
928
973
 void send_cleanup_vector(struct irq_cfg *cfg)
..
..
@@ -960,6 +1005,8 @@
960
1005
 	struct apic_chip_data *apicd;
961
1006
 	struct irq_data *irqd;
962
1007
 	unsigned int vector;
1008
+
1009
+	WARN_ON_ONCE(irqs_pipelined() && !hard_irqs_disabled());
963
1010
 
964
1011
 	/*
965
1012
 	 * The function is called for all descriptors regardless of which
..
..
@@ -1051,9 +1098,10 @@
1051
1098
 int lapic_can_unplug_cpu(void)
1052
1099
 {
1053
1100
 	unsigned int rsvd, avl, tomove, cpu = smp_processor_id();
1101
+	unsigned long flags;
1054
1102
 	int ret = 0;
1055
1103
 
1056
-	raw_spin_lock(&vector_lock);
1104
+	raw_spin_lock_irqsave(&vector_lock, flags);
1057
1105
 	tomove = irq_matrix_allocated(vector_matrix);
1058
1106
 	avl = irq_matrix_available(vector_matrix, true);
1059
1107
 	if (avl < tomove) {
..
..
@@ -1068,7 +1116,7 @@
1068
1116
 			rsvd, avl);
1069
1117
 	}
1070
1118
 out:
1071
-	raw_spin_unlock(&vector_lock);
1119
+	raw_spin_unlock_irqrestore(&vector_lock, flags);
1072
1120
 	return ret;
1073
1121
 }
1074
1122
 #endif /* HOTPLUG_CPU */