forked from ~ljy/RK356X_SDK_RELEASE

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hc
2023-12-08 01573e231f18eb2d99162747186f59511f56b64d 
 kernel/include/linux/irq.h
....@@ -27,6 +27,7 @@
2727 struct seq_file;
2828 struct module;
2929 struct msi_msg;
30
+struct irq_affinity_desc;
3031 enum irqchip_irq_state;
3132 
3233 /*
....@@ -70,6 +71,8 @@
7071  *				  it from the spurious interrupt detection
7172  *				  mechanism and from core side polling.
7273  * IRQ_DISABLE_UNLAZY		- Disable lazy irq disable
74
+ * IRQ_HIDDEN			- Don't show up in /proc/interrupts
75
+ * IRQ_RAW			- Skip tick management and irqtime accounting
7376  */
7477 enum {
7578 	IRQ_TYPE_NONE		= 0x00000000,
....@@ -96,13 +99,15 @@
9699 	IRQ_PER_CPU_DEVID	= (1 << 17),
97100 	IRQ_IS_POLLED		= (1 << 18),
98101 	IRQ_DISABLE_UNLAZY	= (1 << 19),
102
+	IRQ_HIDDEN		= (1 << 20),
103
+	IRQ_RAW			= (1 << 21),
99104 };
100105 
101106 #define IRQF_MODIFY_MASK	\
102107 	(IRQ_TYPE_SENSE_MASK | IRQ_NOPROBE | IRQ_NOREQUEST | \
103108 	 IRQ_NOAUTOEN | IRQ_MOVE_PCNTXT | IRQ_LEVEL | IRQ_NO_BALANCING | \
104109 	 IRQ_PER_CPU | IRQ_NESTED_THREAD | IRQ_NOTHREAD | IRQ_PER_CPU_DEVID | \
105
-	 IRQ_IS_POLLED | IRQ_DISABLE_UNLAZY)
110
+	 IRQ_IS_POLLED | IRQ_DISABLE_UNLAZY | IRQ_HIDDEN)
106111 
107112 #define IRQ_NO_BALANCING_MASK	(IRQ_PER_CPU | IRQ_NO_BALANCING)
108113 
....@@ -194,7 +199,7 @@
194199  * IRQD_LEVEL			- Interrupt is level triggered
195200  * IRQD_WAKEUP_STATE		- Interrupt is configured for wakeup
196201  *				  from suspend
197
- * IRDQ_MOVE_PCNTXT		- Interrupt can be moved in process
202
+ * IRQD_MOVE_PCNTXT		- Interrupt can be moved in process
198203  *				  context
199204  * IRQD_IRQ_DISABLED		- Disabled state of the interrupt
200205  * IRQD_IRQ_MASKED		- Masked state of the interrupt
....@@ -210,8 +215,12 @@
210215  * IRQD_CAN_RESERVE		- Can use reservation mode
211216  * IRQD_MSI_NOMASK_QUIRK	- Non-maskable MSI quirk for affinity change
212217  *				  required
218
+ * IRQD_HANDLE_ENFORCE_IRQCTX	- Enforce that handle_irq_*() is only invoked
219
+ *				  from actual interrupt context.
213220  * IRQD_AFFINITY_ON_ACTIVATE	- Affinity is set on activation. Don't call
214221  *				  irq_chip::irq_set_affinity() when deactivated.
222
+ * IRQD_IRQ_ENABLED_ON_SUSPEND	- Interrupt is enabled on suspend by irq pm if
223
+ *				  irqchip have flag IRQCHIP_ENABLE_WAKEUP_ON_SUSPEND set.
215224  */
216225 enum {
217226 	IRQD_TRIGGER_MASK		= 0xf,
....@@ -235,7 +244,9 @@
235244 	IRQD_DEFAULT_TRIGGER_SET	= (1 << 25),
236245 	IRQD_CAN_RESERVE		= (1 << 26),
237246 	IRQD_MSI_NOMASK_QUIRK		= (1 << 27),
247
+	IRQD_HANDLE_ENFORCE_IRQCTX	= (1 << 28),
238248 	IRQD_AFFINITY_ON_ACTIVATE	= (1 << 29),
249
+	IRQD_IRQ_ENABLED_ON_SUSPEND	= (1 << 30),
239250 };
240251 
241252 #define __irqd_to_state(d) ACCESS_PRIVATE((d)->common, state_use_accessors)
....@@ -303,6 +314,21 @@
303314 static inline bool irqd_is_single_target(struct irq_data *d)
304315 {
305316 	return __irqd_to_state(d) & IRQD_SINGLE_TARGET;
317
+}
318
+
319
+static inline void irqd_set_handle_enforce_irqctx(struct irq_data *d)
320
+{
321
+	__irqd_to_state(d) |= IRQD_HANDLE_ENFORCE_IRQCTX;
322
+}
323
+
324
+static inline bool irqd_is_handle_enforce_irqctx(struct irq_data *d)
325
+{
326
+	return __irqd_to_state(d) & IRQD_HANDLE_ENFORCE_IRQCTX;
327
+}
328
+
329
+static inline bool irqd_is_enabled_on_suspend(struct irq_data *d)
330
+{
331
+	return __irqd_to_state(d) & IRQD_IRQ_ENABLED_ON_SUSPEND;
306332 }
307333 
308334 static inline bool irqd_is_wakeup_set(struct irq_data *d)
....@@ -472,6 +498,8 @@
472498  * @irq_set_vcpu_affinity:	optional to target a vCPU in a virtual machine
473499  * @ipi_send_single:	send a single IPI to destination cpus
474500  * @ipi_send_mask:	send an IPI to destination cpus in cpumask
501
+ * @irq_nmi_setup:	function called from core code before enabling an NMI
502
+ * @irq_nmi_teardown:	function called from core code after disabling an NMI
475503  * @flags:		chip specific flags
476504  */
477505 struct irq_chip {
....@@ -520,33 +548,41 @@
520548 	void		(*ipi_send_single)(struct irq_data *data, unsigned int cpu);
521549 	void		(*ipi_send_mask)(struct irq_data *data, const struct cpumask *dest);
522550 
551
+	int		(*irq_nmi_setup)(struct irq_data *data);
552
+	void		(*irq_nmi_teardown)(struct irq_data *data);
553
+
523554 	unsigned long	flags;
524555 };
525556 
526557 /*
527558  * irq_chip specific flags
528559  *
529
- * IRQCHIP_SET_TYPE_MASKED:	Mask before calling chip.irq_set_type()
530
- * IRQCHIP_EOI_IF_HANDLED:	Only issue irq_eoi() when irq was handled
531
- * IRQCHIP_MASK_ON_SUSPEND:	Mask non wake irqs in the suspend path
532
- * IRQCHIP_ONOFFLINE_ENABLED:	Only call irq_on/off_line callbacks
533
- *				when irq enabled
534
- * IRQCHIP_SKIP_SET_WAKE:	Skip chip.irq_set_wake(), for this irq chip
535
- * IRQCHIP_ONESHOT_SAFE:	One shot does not require mask/unmask
536
- * IRQCHIP_EOI_THREADED:	Chip requires eoi() on unmask in threaded mode
537
- * IRQCHIP_SUPPORTS_LEVEL_MSI	Chip can provide two doorbells for Level MSIs
560
+ * IRQCHIP_SET_TYPE_MASKED:           Mask before calling chip.irq_set_type()
561
+ * IRQCHIP_EOI_IF_HANDLED:            Only issue irq_eoi() when irq was handled
562
+ * IRQCHIP_MASK_ON_SUSPEND:           Mask non wake irqs in the suspend path
563
+ * IRQCHIP_ONOFFLINE_ENABLED:         Only call irq_on/off_line callbacks
564
+ *                                    when irq enabled
565
+ * IRQCHIP_SKIP_SET_WAKE:             Skip chip.irq_set_wake(), for this irq chip
566
+ * IRQCHIP_ONESHOT_SAFE:              One shot does not require mask/unmask
567
+ * IRQCHIP_EOI_THREADED:              Chip requires eoi() on unmask in threaded mode
568
+ * IRQCHIP_SUPPORTS_LEVEL_MSI:        Chip can provide two doorbells for Level MSIs
569
+ * IRQCHIP_SUPPORTS_NMI:              Chip can deliver NMIs, only for root irqchips
570
+ * IRQCHIP_ENABLE_WAKEUP_ON_SUSPEND:  Invokes __enable_irq()/__disable_irq() for wake irqs
571
+ *                                    in the suspend path if they are in disabled state
538572  * IRQCHIP_AFFINITY_PRE_STARTUP:      Default affinity update before startup
539573  */
540574 enum {
541
-	IRQCHIP_SET_TYPE_MASKED		= (1 <<  0),
542
-	IRQCHIP_EOI_IF_HANDLED		= (1 <<  1),
543
-	IRQCHIP_MASK_ON_SUSPEND		= (1 <<  2),
544
-	IRQCHIP_ONOFFLINE_ENABLED	= (1 <<  3),
545
-	IRQCHIP_SKIP_SET_WAKE		= (1 <<  4),
546
-	IRQCHIP_ONESHOT_SAFE		= (1 <<  5),
547
-	IRQCHIP_EOI_THREADED		= (1 <<  6),
548
-	IRQCHIP_SUPPORTS_LEVEL_MSI	= (1 <<  7),
549
-	IRQCHIP_AFFINITY_PRE_STARTUP	= (1 << 10),
575
+	IRQCHIP_SET_TYPE_MASKED			= (1 <<  0),
576
+	IRQCHIP_EOI_IF_HANDLED			= (1 <<  1),
577
+	IRQCHIP_MASK_ON_SUSPEND			= (1 <<  2),
578
+	IRQCHIP_ONOFFLINE_ENABLED		= (1 <<  3),
579
+	IRQCHIP_SKIP_SET_WAKE			= (1 <<  4),
580
+	IRQCHIP_ONESHOT_SAFE			= (1 <<  5),
581
+	IRQCHIP_EOI_THREADED			= (1 <<  6),
582
+	IRQCHIP_SUPPORTS_LEVEL_MSI		= (1 <<  7),
583
+	IRQCHIP_SUPPORTS_NMI			= (1 <<  8),
584
+	IRQCHIP_ENABLE_WAKEUP_ON_SUSPEND	= (1 <<  9),
585
+	IRQCHIP_AFFINITY_PRE_STARTUP		= (1 << 10),
550586 };
551587 
552588 #include <linux/irqdesc.h>
....@@ -567,8 +603,6 @@
567603 #define IRQ_DEFAULT_INIT_FLAGS	ARCH_IRQ_INIT_FLAGS
568604 
569605 struct irqaction;
570
-extern int setup_irq(unsigned int irq, struct irqaction *new);
571
-extern void remove_irq(unsigned int irq, struct irqaction *act);
572606 extern int setup_percpu_irq(unsigned int irq, struct irqaction *new);
573607 extern void remove_percpu_irq(unsigned int irq, struct irqaction *act);
574608 
....@@ -617,6 +651,7 @@
617651  */
618652 extern void handle_level_irq(struct irq_desc *desc);
619653 extern void handle_fasteoi_irq(struct irq_desc *desc);
654
+extern void handle_percpu_devid_fasteoi_ipi(struct irq_desc *desc);
620655 extern void handle_edge_irq(struct irq_desc *desc);
621656 extern void handle_edge_eoi_irq(struct irq_desc *desc);
622657 extern void handle_simple_irq(struct irq_desc *desc);
....@@ -625,6 +660,9 @@
625660 extern void handle_percpu_devid_irq(struct irq_desc *desc);
626661 extern void handle_bad_irq(struct irq_desc *desc);
627662 extern void handle_nested_irq(unsigned int irq);
663
+
664
+extern void handle_fasteoi_nmi(struct irq_desc *desc);
665
+extern void handle_percpu_devid_fasteoi_nmi(struct irq_desc *desc);
628666 
629667 extern int irq_chip_compose_msi_msg(struct irq_data *data, struct msi_msg *msg);
630668 extern int irq_chip_pm_get(struct irq_data *data);
....@@ -643,6 +681,7 @@
643681 extern void irq_chip_ack_parent(struct irq_data *data);
644682 extern int irq_chip_retrigger_hierarchy(struct irq_data *data);
645683 extern void irq_chip_mask_parent(struct irq_data *data);
684
+extern void irq_chip_mask_ack_parent(struct irq_data *data);
646685 extern void irq_chip_unmask_parent(struct irq_data *data);
647686 extern void irq_chip_eoi_parent(struct irq_data *data);
648687 extern int irq_chip_set_affinity_parent(struct irq_data *data,
....@@ -652,6 +691,8 @@
652691 extern int irq_chip_set_vcpu_affinity_parent(struct irq_data *data,
653692 					     void *vcpu_info);
654693 extern int irq_chip_set_type_parent(struct irq_data *data, unsigned int type);
694
+extern int irq_chip_request_resources_parent(struct irq_data *data);
695
+extern void irq_chip_release_resources_parent(struct irq_data *data);
655696 #endif
656697 
657698 /* Handling of unhandled and spurious interrupts: */
....@@ -713,6 +754,9 @@
713754 void
714755 irq_set_chained_handler_and_data(unsigned int irq, irq_flow_handler_t handle,
715756 				 void *data);
757
+
758
+void __irq_modify_status(unsigned int irq, unsigned long clr,
759
+			 unsigned long set, unsigned long mask);
716760 
717761 void irq_modify_status(unsigned int irq, unsigned long clr, unsigned long set);
718762 
....@@ -873,18 +917,19 @@
873917 unsigned int arch_dynirq_lower_bound(unsigned int from);
874918 
875919 int __irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node,
876
-		      struct module *owner, const struct cpumask *affinity);
920
+		      struct module *owner,
921
+		      const struct irq_affinity_desc *affinity);
877922 
878923 int __devm_irq_alloc_descs(struct device *dev, int irq, unsigned int from,
879924 			   unsigned int cnt, int node, struct module *owner,
880
-			   const struct cpumask *affinity);
925
+			   const struct irq_affinity_desc *affinity);
881926 
882927 /* use macros to avoid needing export.h for THIS_MODULE */
883928 #define irq_alloc_descs(irq, from, cnt, node)	\
884929 	__irq_alloc_descs(irq, from, cnt, node, THIS_MODULE, NULL)
885930 
886931 #define irq_alloc_desc(node)			\
887
-	irq_alloc_descs(-1, 0, 1, node)
932
+	irq_alloc_descs(-1, 1, 1, node)
888933 
889934 #define irq_alloc_desc_at(at, node)		\
890935 	irq_alloc_descs(at, at, 1, node)
....@@ -899,7 +944,7 @@
899944 	__devm_irq_alloc_descs(dev, irq, from, cnt, node, THIS_MODULE, NULL)
900945 
901946 #define devm_irq_alloc_desc(dev, node)				\
902
-	devm_irq_alloc_descs(dev, -1, 0, 1, node)
947
+	devm_irq_alloc_descs(dev, -1, 1, 1, node)
903948 
904949 #define devm_irq_alloc_desc_at(dev, at, node)			\
905950 	devm_irq_alloc_descs(dev, at, at, 1, node)
....@@ -1030,7 +1075,7 @@
10301075 	unsigned long		unused;
10311076 	struct irq_domain	*domain;
10321077 	struct list_head	list;
1033
-	struct irq_chip_type	chip_types[0];
1078
+	struct irq_chip_type	chip_types[];
10341079 };
10351080 
10361081 /**
....@@ -1066,7 +1111,7 @@
10661111 	unsigned int		irq_flags_to_clear;
10671112 	unsigned int		irq_flags_to_set;
10681113 	enum irq_gc_flags	gc_flags;
1069
-	struct irq_chip_generic	*gc[0];
1114
+	struct irq_chip_generic	*gc[];
10701115 };
10711116 
10721117 /* Generic chip callback functions */
....@@ -1228,6 +1273,12 @@
12281273  * top-level IRQ handler.
12291274  */
12301275 extern void (*handle_arch_irq)(struct pt_regs *) __ro_after_init;
1276
+#else
1277
+#define set_handle_irq(handle_irq)		\
1278
+	do {					\
1279
+		(void)handle_irq;		\
1280
+		WARN_ON(1);			\
1281
+	} while (0)
12311282 #endif
12321283 
12331284 #endif /* _LINUX_IRQ_H */