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/Linux-v6.1/drivers/irqchip/
DMakefile4 obj-$(CONFIG_AL_FIC) += irq-al-fic.o
5 obj-$(CONFIG_ALPINE_MSI) += irq-alpine-msi.o
6 obj-$(CONFIG_ATH79) += irq-ath79-cpu.o
7 obj-$(CONFIG_ATH79) += irq-ath79-misc.o
8 obj-$(CONFIG_ARCH_BCM2835) += irq-bcm2835.o
9 obj-$(CONFIG_ARCH_BCM2835) += irq-bcm2836.o
10 obj-$(CONFIG_ARCH_ACTIONS) += irq-owl-sirq.o
11 obj-$(CONFIG_DAVINCI_AINTC) += irq-davinci-aintc.o
12 obj-$(CONFIG_DAVINCI_CP_INTC) += irq-davinci-cp-intc.o
14 obj-$(CONFIG_FARADAY_FTINTC010) += irq-ftintc010.o
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/Linux-v6.1/drivers/misc/ocxl/
Dafu_irq.c35 struct afu_irq *irq; in ocxl_irq_set_handler() local
39 irq = idr_find(&ctx->irq_idr, irq_id); in ocxl_irq_set_handler()
40 if (!irq) { in ocxl_irq_set_handler()
45 irq->handler = handler; in ocxl_irq_set_handler()
46 irq->private = private; in ocxl_irq_set_handler()
47 irq->free_private = free_private; in ocxl_irq_set_handler()
60 struct afu_irq *irq = (struct afu_irq *) data; in afu_irq_handler() local
64 if (irq->handler) in afu_irq_handler()
65 return irq->handler(irq->private); in afu_irq_handler()
70 static int setup_afu_irq(struct ocxl_context *ctx, struct afu_irq *irq) in setup_afu_irq() argument
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/Linux-v6.1/drivers/staging/media/atomisp/pci/hive_isp_css_include/host/
Dirq_public.h22 /*! Read the control registers of IRQ[ID]
24 \param ID[in] IRQ identifier
25 \param state[out] irq controller state structure
27 \return none, state = IRQ[ID].state
32 /*! Write to a control register of IRQ[ID]
34 \param ID[in] IRQ identifier
38 \return none, IRQ[ID].ctrl[reg] = value
45 /*! Read from a control register of IRQ[ID]
47 \param ID[in] IRQ identifier
51 \return IRQ[ID].ctrl[reg]
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/Linux-v6.1/arch/arm64/kvm/vgic/
Dvgic.c7 #include <linux/irq.h>
56 * matching interrupt ID and return a reference to the IRQ structure.
61 struct vgic_irq *irq = NULL; in vgic_get_lpi() local
66 list_for_each_entry(irq, &dist->lpi_list_head, lpi_list) { in vgic_get_lpi()
67 if (irq->intid != intid) in vgic_get_lpi()
72 * call vgic_put_irq() later once it's finished with the IRQ. in vgic_get_lpi()
74 vgic_get_irq_kref(irq); in vgic_get_lpi()
77 irq = NULL; in vgic_get_lpi()
82 return irq; in vgic_get_lpi()
88 * to call vgic_put_irq() once it's finished with this IRQ.
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Dvgic-mmio.c9 #include <linux/irq.h>
53 struct vgic_irq *irq = vgic_get_irq(vcpu->kvm, vcpu, intid + i); in vgic_mmio_read_group() local
55 if (irq->group) in vgic_mmio_read_group()
58 vgic_put_irq(vcpu->kvm, irq); in vgic_mmio_read_group()
64 static void vgic_update_vsgi(struct vgic_irq *irq) in vgic_update_vsgi() argument
66 WARN_ON(its_prop_update_vsgi(irq->host_irq, irq->priority, irq->group)); in vgic_update_vsgi()
77 struct vgic_irq *irq = vgic_get_irq(vcpu->kvm, vcpu, intid + i); in vgic_mmio_write_group() local
79 raw_spin_lock_irqsave(&irq->irq_lock, flags); in vgic_mmio_write_group()
80 irq->group = !!(val & BIT(i)); in vgic_mmio_write_group()
81 if (irq->hw && vgic_irq_is_sgi(irq->intid)) { in vgic_mmio_write_group()
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/Linux-v6.1/drivers/acpi/
Dpci_link.c10 * 1. Support more than one IRQ resource entry per link device (index).
12 * for IRQ management (e.g. start()->_SRS).
28 #include <linux/irq.h>
53 * later even the link is disable. Instead, we just repick the active irq
56 u32 active; /* Current IRQ */
69 struct acpi_pci_link_irq irq; member
97 struct acpi_resource_irq *p = &resource->data.irq; in acpi_pci_link_check_possible()
100 "Blank _PRS IRQ resource\n"); in acpi_pci_link_check_possible()
108 "Invalid _PRS IRQ %d\n", in acpi_pci_link_check_possible()
112 link->irq.possible[i] = p->interrupts[i]; in acpi_pci_link_check_possible()
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/Linux-v6.1/drivers/xen/events/
Devents_base.c9 * chip. When an event is received, it is mapped to an irq and sent
29 #include <linux/irq.h>
45 #include <asm/irq.h>
85 * Packed IRQ information:
87 * event channel - irq->event channel mapping
90 * PIRQ - vector, with MSB being "needs EIO", or physical IRQ of the HVM
91 * guest, or GSI (real passthrough IRQ) of the device.
108 unsigned irq; member
150 * Adding of event channels is no issue as the associated IRQ becomes active
151 * only after everything is setup (before request_[threaded_]irq() the handler
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/Linux-v6.1/arch/x86/include/asm/trace/
Dirq_vectors.h61 * irq_work - called when entering/exiting a irq work interrupt
128 TP_PROTO(unsigned int irq, unsigned int vector,
131 TP_ARGS(irq, vector, cpu, apicdest),
134 __field( unsigned int, irq )
141 __entry->irq = irq;
147 TP_printk("irq=%u vector=%u cpu=%u apicdest=0x%08x",
148 __entry->irq, __entry->vector, __entry->cpu,
154 TP_PROTO(unsigned int irq, unsigned int vector,
158 TP_ARGS(irq, vector, cpu, prev_vector, prev_cpu),
161 __field( unsigned int, irq )
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/Linux-v6.1/arch/ia64/kernel/
Diosapic.c17 * 00/10/27 Asit Mallick, Goutham Rao <goutham.rao@intel.com> IRQ vector
23 * 01/07/27 J.I. Lee PCI irq routing, Platform/Legacy interrupts
25 * 02/01/23 J.I. Lee iosapic pgm fixes for PCI irq routing from _PRT
28 * initializations for /proc/irq/#/smp_affinity
29 * 02/04/02 P. Diefenbaugh Cleaned up ACPI PCI IRQ routing.
31 * 02/04/30 J.I. Lee bug fix in find_iosapic to fix ACPI PCI IRQ to
34 * 02/08/04 T. Kochi Cleaned up terminology (irq, global system
43 * Updated to work with irq migration necessary
66 * (4) The kernel recognizes an interrupt as an IRQ. The IRQ interface is
68 * As an IRQ is a number, we have to have
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Dmsi_ia64.c7 #include <linux/irq.h>
22 unsigned int irq = idata->irq; in ia64_set_msi_irq_affinity() local
24 if (irq_prepare_move(irq, cpu)) in ia64_set_msi_irq_affinity()
36 data |= MSI_DATA_VECTOR(irq_to_vector(irq)); in ia64_set_msi_irq_affinity()
39 pci_write_msi_msg(irq, &msg); in ia64_set_msi_irq_affinity()
50 int irq, vector; in arch_setup_msi_irq() local
52 irq = create_irq(); in arch_setup_msi_irq()
53 if (irq < 0) in arch_setup_msi_irq()
54 return irq; in arch_setup_msi_irq()
56 irq_set_msi_desc(irq, desc); in arch_setup_msi_irq()
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Dirq_ia64.c32 #include <linux/irq.h>
61 * Legacy IRQ to IA-64 vector translation table.
64 /* 8259 IRQ translation, first 16 entries */
93 int irq; in find_unassigned_irq() local
95 for (irq = IA64_FIRST_DEVICE_VECTOR; irq < NR_IRQS; irq++) in find_unassigned_irq()
96 if (irq_status[irq] == IRQ_UNUSED) in find_unassigned_irq()
97 return irq; in find_unassigned_irq()
120 static int __bind_irq_vector(int irq, int vector, cpumask_t domain) in __bind_irq_vector() argument
124 struct irq_cfg *cfg = &irq_cfg[irq]; in __bind_irq_vector()
126 BUG_ON((unsigned)irq >= NR_IRQS); in __bind_irq_vector()
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/Linux-v6.1/drivers/misc/
Ddummy-irq.c3 * Dummy IRQ handler driver.
6 * by the 'irq' parameter.
9 * which spurious IRQs would happen on disabled IRQ vector.
15 #include <linux/irq.h>
18 static int irq = -1; variable
20 static irqreturn_t dummy_interrupt(int irq, void *dev_id) in dummy_interrupt() argument
25 printk(KERN_INFO "dummy-irq: interrupt occurred on IRQ %d\n", in dummy_interrupt()
26 irq); in dummy_interrupt()
35 if (irq < 0) { in dummy_irq_init()
36 printk(KERN_ERR "dummy-irq: no IRQ given. Use irq=N\n"); in dummy_irq_init()
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/Linux-v6.1/drivers/net/ethernet/mellanox/mlx5/core/
Dpci_irq.c126 static void irq_release(struct mlx5_irq *irq) in irq_release() argument
128 struct mlx5_irq_pool *pool = irq->pool; in irq_release()
130 xa_erase(&pool->irqs, irq->index); in irq_release()
135 irq_update_affinity_hint(irq->irqn, NULL); in irq_release()
136 free_cpumask_var(irq->mask); in irq_release()
137 free_irq(irq->irqn, &irq->nh); in irq_release()
138 kfree(irq); in irq_release()
141 int mlx5_irq_put(struct mlx5_irq *irq) in mlx5_irq_put() argument
143 struct mlx5_irq_pool *pool = irq->pool; in mlx5_irq_put()
147 irq->refcount--; in mlx5_irq_put()
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/Linux-v6.1/arch/m68k/coldfire/
Dintc-simr.c17 #include <linux/irq.h>
38 static inline unsigned int irq2ebit(unsigned int irq) in irq2ebit() argument
40 return irqebitmap[irq - EINT0]; in irq2ebit()
54 static inline unsigned int irq2ebit(unsigned int irq) in irq2ebit() argument
56 return irq - EINT0; in irq2ebit()
69 unsigned int irq = d->irq - MCFINT_VECBASE; in intc_irq_mask() local
71 if (MCFINTC2_SIMR && (irq > 127)) in intc_irq_mask()
72 __raw_writeb(irq - 128, MCFINTC2_SIMR); in intc_irq_mask()
73 else if (MCFINTC1_SIMR && (irq > 63)) in intc_irq_mask()
74 __raw_writeb(irq - 64, MCFINTC1_SIMR); in intc_irq_mask()
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Dintc-2.c24 #include <linux/irq.h>
52 unsigned int irq = d->irq - MCFINT_VECBASE; in intc_irq_mask() local
57 imraddr = (irq & 0x40) ? MCFICM_INTC1 : MCFICM_INTC0; in intc_irq_mask()
61 imraddr += (irq & 0x20) ? MCFINTC_IMRH : MCFINTC_IMRL; in intc_irq_mask()
62 imrbit = 0x1 << (irq & 0x1f); in intc_irq_mask()
70 unsigned int irq = d->irq - MCFINT_VECBASE; in intc_irq_unmask() local
75 imraddr = (irq & 0x40) ? MCFICM_INTC1 : MCFICM_INTC0; in intc_irq_unmask()
79 imraddr += ((irq & 0x20) ? MCFINTC_IMRH : MCFINTC_IMRL); in intc_irq_unmask()
80 imrbit = 0x1 << (irq & 0x1f); in intc_irq_unmask()
83 if ((irq & 0x20) == 0) in intc_irq_unmask()
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Dintc-5272.c16 #include <linux/irq.h>
78 * an interrupt on this irq (for the external irqs). So this mask function
83 unsigned int irq = d->irq; in intc_irq_mask() local
85 if ((irq >= MCFINT_VECBASE) && (irq <= MCFINT_VECMAX)) { in intc_irq_mask()
87 irq -= MCFINT_VECBASE; in intc_irq_mask()
88 v = 0x8 << intc_irqmap[irq].index; in intc_irq_mask()
89 writel(v, intc_irqmap[irq].icr); in intc_irq_mask()
95 unsigned int irq = d->irq; in intc_irq_unmask() local
97 if ((irq >= MCFINT_VECBASE) && (irq <= MCFINT_VECMAX)) { in intc_irq_unmask()
99 irq -= MCFINT_VECBASE; in intc_irq_unmask()
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/Linux-v6.1/arch/m68k/virt/
Dints.c5 #include <linux/irq.h>
13 #include <asm/irq.h>
34 * 6 goldfish-pic for CPU IRQ #1 to IRQ #6
35 * CPU IRQ #1 -> PIC #1
36 * IRQ #1 to IRQ #31 -> unused
37 * IRQ #32 -> goldfish-tty
38 * CPU IRQ #2 -> PIC #2
39 * IRQ #1 to IRQ #32 -> virtio-mmio from 1 to 32
40 * CPU IRQ #3 -> PIC #3
41 * IRQ #1 to IRQ #32 -> virtio-mmio from 33 to 64
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/Linux-v6.1/Documentation/arm/
Dinterrupts.rst16 Secondly, the IRQ subsystem.
39 SA1111 IRQ handler, SA1111 IRQs can hold off SMC9196 IRQs indefinitely.
48 We also bring the idea of an IRQ "chip" (mainly to reduce the size of
57 * Acknowledge the IRQ.
58 * If this is a level-based IRQ, then it is expected to mask the IRQ
61 void (*ack)(unsigned int irq);
63 * Mask the IRQ in hardware.
65 void (*mask)(unsigned int irq);
67 * Unmask the IRQ in hardware.
69 void (*unmask)(unsigned int irq);
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/Linux-v6.1/drivers/parisc/
Dgsc.c35 int irq = txn_alloc_irq(GSC_EIM_WIDTH); in gsc_alloc_irq() local
36 if (irq < 0) { in gsc_alloc_irq()
37 printk("cannot get irq\n"); in gsc_alloc_irq()
38 return irq; in gsc_alloc_irq()
41 i->txn_addr = txn_alloc_addr(irq); in gsc_alloc_irq()
42 i->txn_data = txn_alloc_data(irq); in gsc_alloc_irq()
43 i->irq = irq; in gsc_alloc_irq()
45 return irq; in gsc_alloc_irq()
48 int gsc_claim_irq(struct gsc_irq *i, int irq) in gsc_claim_irq() argument
50 int c = irq; in gsc_claim_irq()
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/Linux-v6.1/drivers/gpu/drm/i915/gvt/
Dinterrupt.c48 #define get_event_virt_handler(irq, e) (irq->events[e].v_handler) argument
49 #define get_irq_info(irq, e) (irq->events[e].info) argument
51 #define irq_to_gvt(irq) \ argument
52 container_of(irq, struct intel_gvt, irq)
153 struct intel_gvt_irq *irq = &gvt->irq; in regbase_to_irq_info() local
156 for_each_set_bit(i, irq->irq_info_bitmap, INTEL_GVT_IRQ_INFO_MAX) { in regbase_to_irq_info()
157 if (i915_mmio_reg_offset(irq->info[i]->reg_base) == reg) in regbase_to_irq_info()
158 return irq->info[i]; in regbase_to_irq_info()
182 const struct intel_gvt_irq_ops *ops = gvt->irq.ops; in intel_vgpu_reg_imr_handler()
196 * intel_vgpu_reg_master_irq_handler - master IRQ write emulation handler
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/Linux-v6.1/drivers/gpu/drm/amd/amdgpu/
Damdgpu_irq.c33 * passed to amdgpu IRQ handler which is responsible for detecting source and
41 * For GPU interrupt sources that may be driven by another driver, IRQ domain
45 #include <linux/irq.h>
109 * The work gets scheduled from the IRQ handler if there
115 * from the IRQ handler to a work handler because hotplug handler has to use
116 * mutexes which cannot be locked in an IRQ handler (since &mutex_lock may
151 spin_lock_irqsave(&adev->irq.lock, irqflags); in amdgpu_irq_disable_all()
153 if (!adev->irq.client[i].sources) in amdgpu_irq_disable_all()
157 struct amdgpu_irq_src *src = adev->irq.client[i].sources[j]; in amdgpu_irq_disable_all()
172 spin_unlock_irqrestore(&adev->irq.lock, irqflags); in amdgpu_irq_disable_all()
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/Linux-v6.1/include/linux/
Dirqnr.h9 extern struct irq_desc *irq_to_desc(unsigned int irq);
12 # define for_each_irq_desc(irq, desc) \ argument
13 for (irq = 0, desc = irq_to_desc(irq); irq < nr_irqs; \
14 irq++, desc = irq_to_desc(irq)) \
20 # define for_each_irq_desc_reverse(irq, desc) \ argument
21 for (irq = nr_irqs - 1, desc = irq_to_desc(irq); irq >= 0; \
22 irq--, desc = irq_to_desc(irq)) \
27 # define for_each_active_irq(irq) \ argument
28 for (irq = irq_get_next_irq(0); irq < nr_irqs; \
29 irq = irq_get_next_irq(irq + 1))
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Dinterrupt.h20 #include <asm/irq.h>
41 * irq handling routines.
43 * IRQF_SHARED - allow sharing the irq among several devices
47 * IRQF_NOBALANCING - Flag to exclude this interrupt from irq balancing
53 * irq line disabled until the threaded handler has been run.
54 * IRQF_NO_SUSPEND - Do not disable this IRQ during suspend. Does not guarantee
59 * IRQF_EARLY_RESUME - Resume IRQ early during syscore instead of at device
61 * IRQF_COND_SUSPEND - If the IRQ is shared with a NO_SUSPEND user, execute this
65 * IRQF_NO_AUTOEN - Don't enable IRQ or NMI automatically when users request it.
109 * @irq: interrupt number
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/Linux-v6.1/kernel/irq/
Dmanage.c6 * This file contains driver APIs to the irq subsystem.
11 #include <linux/irq.h>
77 * synchronize_hardirq - wait for pending hard IRQ handlers (on other CPUs)
78 * @irq: interrupt number to wait for
80 * This function waits for any pending hard IRQ handlers for this
82 * function while holding a resource the IRQ handler may need you
91 * This function may be called - with care - from IRQ context.
98 bool synchronize_hardirq(unsigned int irq) in synchronize_hardirq() argument
100 struct irq_desc *desc = irq_to_desc(irq); in synchronize_hardirq()
112 * synchronize_irq - wait for pending IRQ handlers (on other CPUs)
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/Linux-v6.1/arch/powerpc/platforms/4xx/
Dhsta_msi.c42 int irq, hwirq; in hsta_setup_msi_irqs() local
52 irq = msi_bitmap_alloc_hwirqs(&ppc4xx_hsta_msi.bmp, 1); in hsta_setup_msi_irqs()
53 if (irq < 0) { in hsta_setup_msi_irqs()
56 return irq; in hsta_setup_msi_irqs()
59 hwirq = ppc4xx_hsta_msi.irq_map[irq]; in hsta_setup_msi_irqs()
61 pr_err("%s: Failed mapping irq %d\n", __func__, irq); in hsta_setup_msi_irqs()
69 addr = ppc4xx_hsta_msi.address + irq*0x10; in hsta_setup_msi_irqs()
76 pr_debug("%s: Setup irq %d (0x%0llx)\n", __func__, hwirq, in hsta_setup_msi_irqs()
83 msi_bitmap_free_hwirqs(&ppc4xx_hsta_msi.bmp, irq, 1); in hsta_setup_msi_irqs()
94 int irq; in hsta_find_hwirq_offset() local
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