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Diffstat (limited to 'include/linux/irq.h')
-rw-r--r--include/linux/irq.h52
1 files changed, 12 insertions, 40 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h
index fa711f80957b..1d6b606a81ef 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -64,7 +64,6 @@ enum irqchip_irq_state;
* IRQ_NOAUTOEN - Interrupt is not automatically enabled in
* request/setup_irq()
* IRQ_NO_BALANCING - Interrupt cannot be balanced (affinity set)
- * IRQ_MOVE_PCNTXT - Interrupt can be migrated from process context
* IRQ_NESTED_THREAD - Interrupt nests into another thread
* IRQ_PER_CPU_DEVID - Dev_id is a per-cpu variable
* IRQ_IS_POLLED - Always polled by another interrupt. Exclude
@@ -93,7 +92,6 @@ enum {
IRQ_NOREQUEST = (1 << 11),
IRQ_NOAUTOEN = (1 << 12),
IRQ_NO_BALANCING = (1 << 13),
- IRQ_MOVE_PCNTXT = (1 << 14),
IRQ_NESTED_THREAD = (1 << 15),
IRQ_NOTHREAD = (1 << 16),
IRQ_PER_CPU_DEVID = (1 << 17),
@@ -105,7 +103,7 @@ enum {
#define IRQF_MODIFY_MASK \
(IRQ_TYPE_SENSE_MASK | IRQ_NOPROBE | IRQ_NOREQUEST | \
- IRQ_NOAUTOEN | IRQ_MOVE_PCNTXT | IRQ_LEVEL | IRQ_NO_BALANCING | \
+ IRQ_NOAUTOEN | IRQ_LEVEL | IRQ_NO_BALANCING | \
IRQ_PER_CPU | IRQ_NESTED_THREAD | IRQ_NOTHREAD | IRQ_PER_CPU_DEVID | \
IRQ_IS_POLLED | IRQ_DISABLE_UNLAZY | IRQ_HIDDEN)
@@ -201,8 +199,6 @@ struct irq_data {
* IRQD_LEVEL - Interrupt is level triggered
* IRQD_WAKEUP_STATE - Interrupt is configured for wakeup
* from suspend
- * IRQD_MOVE_PCNTXT - Interrupt can be moved in process
- * context
* IRQD_IRQ_DISABLED - Disabled state of the interrupt
* IRQD_IRQ_MASKED - Masked state of the interrupt
* IRQD_IRQ_INPROGRESS - In progress state of the interrupt
@@ -233,7 +229,6 @@ enum {
IRQD_AFFINITY_SET = BIT(12),
IRQD_LEVEL = BIT(13),
IRQD_WAKEUP_STATE = BIT(14),
- IRQD_MOVE_PCNTXT = BIT(15),
IRQD_IRQ_DISABLED = BIT(16),
IRQD_IRQ_MASKED = BIT(17),
IRQD_IRQ_INPROGRESS = BIT(18),
@@ -338,11 +333,6 @@ static inline bool irqd_is_wakeup_set(struct irq_data *d)
return __irqd_to_state(d) & IRQD_WAKEUP_STATE;
}
-static inline bool irqd_can_move_in_process_context(struct irq_data *d)
-{
- return __irqd_to_state(d) & IRQD_MOVE_PCNTXT;
-}
-
static inline bool irqd_irq_disabled(struct irq_data *d)
{
return __irqd_to_state(d) & IRQD_IRQ_DISABLED;
@@ -496,6 +486,7 @@ static inline irq_hw_number_t irqd_to_hwirq(struct irq_data *d)
* @ipi_send_mask: send an IPI to destination cpus in cpumask
* @irq_nmi_setup: function called from core code before enabling an NMI
* @irq_nmi_teardown: function called from core code after disabling an NMI
+ * @irq_force_complete_move: optional function to force complete pending irq move
* @flags: chip specific flags
*/
struct irq_chip {
@@ -547,6 +538,8 @@ struct irq_chip {
int (*irq_nmi_setup)(struct irq_data *data);
void (*irq_nmi_teardown)(struct irq_data *data);
+ void (*irq_force_complete_move)(struct irq_data *data);
+
unsigned long flags;
};
@@ -567,6 +560,7 @@ struct irq_chip {
* in the suspend path if they are in disabled state
* IRQCHIP_AFFINITY_PRE_STARTUP: Default affinity update before startup
* IRQCHIP_IMMUTABLE: Don't ever change anything in this chip
+ * IRQCHIP_MOVE_DEFERRED: Move the interrupt in actual interrupt context
*/
enum {
IRQCHIP_SET_TYPE_MASKED = (1 << 0),
@@ -581,6 +575,7 @@ enum {
IRQCHIP_ENABLE_WAKEUP_ON_SUSPEND = (1 << 9),
IRQCHIP_AFFINITY_PRE_STARTUP = (1 << 10),
IRQCHIP_IMMUTABLE = (1 << 11),
+ IRQCHIP_MOVE_DEFERRED = (1 << 12),
};
#include <linux/irqdesc.h>
@@ -602,7 +597,6 @@ enum {
struct irqaction;
extern int setup_percpu_irq(unsigned int irq, struct irqaction *new);
-extern void remove_percpu_irq(unsigned int irq, struct irqaction *act);
#ifdef CONFIG_DEPRECATED_IRQ_CPU_ONOFFLINE
extern void irq_cpu_online(void);
@@ -620,6 +614,7 @@ extern int irq_affinity_online_cpu(unsigned int cpu);
#endif
#if defined(CONFIG_SMP) && defined(CONFIG_GENERIC_PENDING_IRQ)
+bool irq_can_move_in_process_context(struct irq_data *data);
void __irq_move_irq(struct irq_data *data);
static inline void irq_move_irq(struct irq_data *data)
{
@@ -627,11 +622,10 @@ static inline void irq_move_irq(struct irq_data *data)
__irq_move_irq(data);
}
void irq_move_masked_irq(struct irq_data *data);
-void irq_force_complete_move(struct irq_desc *desc);
#else
+static inline bool irq_can_move_in_process_context(struct irq_data *data) { return true; }
static inline void irq_move_irq(struct irq_data *data) { }
static inline void irq_move_masked_irq(struct irq_data *data) { }
-static inline void irq_force_complete_move(struct irq_desc *desc) { }
#endif
extern int no_irq_affinity;
@@ -694,6 +688,9 @@ extern int irq_chip_request_resources_parent(struct irq_data *data);
extern void irq_chip_release_resources_parent(struct irq_data *data);
#endif
+/* Disable or mask interrupts during a kernel kexec */
+extern void machine_kexec_mask_interrupts(void);
+
/* Handling of unhandled and spurious interrupts: */
extern void note_interrupt(struct irq_desc *desc, irqreturn_t action_ret);
@@ -702,7 +699,7 @@ extern void note_interrupt(struct irq_desc *desc, irqreturn_t action_ret);
extern int noirqdebug_setup(char *str);
/* Checks whether the interrupt can be requested by request_irq(): */
-extern int can_request_irq(unsigned int irq, unsigned long irqflags);
+extern bool can_request_irq(unsigned int irq, unsigned long irqflags);
/* Dummy irq-chip implementations: */
extern struct irq_chip no_irq_chip;
@@ -1224,31 +1221,6 @@ static inline struct irq_chip_type *irq_data_get_chip_type(struct irq_data *d)
#define IRQ_MSK(n) (u32)((n) < 32 ? ((1 << (n)) - 1) : UINT_MAX)
-#ifdef CONFIG_SMP
-static inline void irq_gc_lock(struct irq_chip_generic *gc)
-{
- raw_spin_lock(&gc->lock);
-}
-
-static inline void irq_gc_unlock(struct irq_chip_generic *gc)
-{
- raw_spin_unlock(&gc->lock);
-}
-#else
-static inline void irq_gc_lock(struct irq_chip_generic *gc) { }
-static inline void irq_gc_unlock(struct irq_chip_generic *gc) { }
-#endif
-
-/*
- * The irqsave variants are for usage in non interrupt code. Do not use
- * them in irq_chip callbacks. Use irq_gc_lock() instead.
- */
-#define irq_gc_lock_irqsave(gc, flags) \
- raw_spin_lock_irqsave(&(gc)->lock, flags)
-
-#define irq_gc_unlock_irqrestore(gc, flags) \
- raw_spin_unlock_irqrestore(&(gc)->lock, flags)
-
static inline void irq_reg_writel(struct irq_chip_generic *gc,
u32 val, int reg_offset)
{
generated by cgit (git 2.34.1) at 2025-06-07 03:05:27 +0000