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/Linux-v6.1/Documentation/devicetree/bindings/interrupt-controller/
Dmti,gic.yaml1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/interrupt-controller/mti,gic.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - Paul Burton <paulburton@kernel.org>
11 - Thomas Bogendoerfer <tsbogend@alpha.franken.de>
15 It also supports local (per-processor) interrupts and software-generated
16 interrupts which can be used as IPIs. The GIC also includes a free-running
17 global timer, per-CPU count/compare timers, and a watchdog.
23 "#interrupt-cells":
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/Linux-v6.1/arch/ia64/include/asm/
Dhw_irq.h1 /* SPDX-License-Identifier: GPL-2.0 */
6 * Copyright (C) 2001-2003 Hewlett-Packard Co
7 * David Mosberger-Tang <davidm@hpl.hp.com>
23 * 1,3-14 are reserved from firmware
25 * 16-255 (vectored external interrupts) are available
37 #define AUTO_ASSIGN -1
42 * Vectors 0x10-0x1f are used for low priority interrupts, e.g. CMCI.
45 #define IA64_CMCP_VECTOR 0x1d /* corrected machine-check polling vector */
47 #define IA64_CMC_VECTOR 0x1f /* corrected machine-check interrupt vector */
49 * Vectors 0x20-0x2f are reserved for legacy ISA IRQs.
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/Linux-v6.1/arch/arc/kernel/
Dentry-arcv2.S1 /* SPDX-License-Identifier: GPL-2.0-only */
3 * ARCv2 ISA based core Low Level Intr/Traps/Exceptions(non-TLB) Handling
17 ; first 16 lines are reserved for exceptions and are not configurable.
29 # Initial 16 slots are Exception Vectors
44 VECTOR reserved ; Reserved slots
45 VECTOR reserved ; Reserved slots
47 # Begin Interrupt Vectors
51 VECTOR handle_interrupt ; (19) Inter core Interrupt (IPI)
53 VECTOR handle_interrupt ; (21) Software Triggered Intr (Self IPI)
58 .rept NR_CPU_IRQS - 8
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/Linux-v6.1/drivers/irqchip/
Dirq-mips-gic.c6 * Copyright (C) 2008 Ralf Baechle (ralf@linux-mips.org)
7 * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
10 #define pr_fmt(fmt) "irq-mips-gic: " fmt
26 #include <asm/mips-cps.h>
30 #include <dt-bindings/interrupt-controller/mips-gic.h>
44 #define GIC_HWIRQ_TO_LOCAL(x) ((x) - GIC_LOCAL_HWIRQ_BASE)
47 #define GIC_HWIRQ_TO_SHARED(x) ((x) - GIC_SHARED_HWIRQ_BASE)
106 irq -= GIC_PIN_TO_VEC_OFFSET; in gic_bind_eic_interrupt()
132 return -1; in gic_get_c0_perfcount_int()
144 return -1; in gic_get_c0_fdc_int()
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/Linux-v6.1/arch/powerpc/sysdev/
Dmpic.c9 * Copyright 2010-2012 Freescale Semiconductor, Inc.
152 #define MPIC_INFO(name) mpic->hw_set[MPIC_IDX_##name]
164 if (!(mpic->flags & MPIC_SECONDARY)) in mpic_processor_id()
182 return dcr_read(rb->dhost, reg); in _mpic_read()
185 return in_be32(rb->base + (reg >> 2)); in _mpic_read()
188 return in_le32(rb->base + (reg >> 2)); in _mpic_read()
199 dcr_write(rb->dhost, reg, value); in _mpic_write()
203 out_be32(rb->base + (reg >> 2), value); in _mpic_write()
207 out_le32(rb->base + (reg >> 2), value); in _mpic_write()
212 static inline u32 _mpic_ipi_read(struct mpic *mpic, unsigned int ipi) in _mpic_ipi_read() argument
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/Linux-v6.1/drivers/infiniband/ulp/srp/
Dib_srp.c2 * Copyright (c) 2005 Cisco Systems. All rights reserved.
14 * - Redistributions of source code must retain the above
18 * - Redistributions in binary form must reproduce the above
142 …le completion vectors. The default value is the minimum of four times the number of online CPU soc…
169 int tmo = *(int *)kp->arg; in srp_tmo_get()
185 if (kp->arg == &srp_reconnect_delay) in srp_tmo_set()
188 else if (kp->arg == &srp_fast_io_fail_tmo) in srp_tmo_set()
195 *(int *)kp->arg = tmo; in srp_tmo_set()
208 return (struct srp_target_port *) host->hostdata; in host_to_target()
213 return host_to_target(host)->target_name; in srp_target_info()
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/Linux-v6.1/arch/mips/kvm/
Dmips.c8 * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved.
115 return !!(vcpu->arch.pending_exceptions); in kvm_arch_vcpu_runnable()
130 return kvm_mips_callbacks->hardware_enable(); in kvm_arch_hardware_enable()
135 kvm_mips_callbacks->hardware_disable(); in kvm_arch_hardware_disable()
159 return -EINVAL; in kvm_arch_init_vm()
162 /* Allocate page table to map GPA -> RPA */ in kvm_arch_init_vm()
163 kvm->arch.gpa_mm.pgd = kvm_pgd_alloc(); in kvm_arch_init_vm()
164 if (!kvm->arch.gpa_mm.pgd) in kvm_arch_init_vm()
165 return -ENOMEM; in kvm_arch_init_vm()
178 pgd_free(NULL, kvm->arch.gpa_mm.pgd); in kvm_mips_free_gpa_pt()
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/Linux-v6.1/arch/x86/kernel/apic/
Dapic.c1 // SPDX-License-Identifier: GPL-2.0-only
13 * Mikael Pettersson : Power Management for UP-APIC.
41 #include <asm/pc-conf-reg.h>
62 #include <asm/intel-family.h>
71 unsigned int boot_cpu_physical_apicid __ro_after_init = -1U;
151 * +1=force-enable
243 * so apic->write/read doesn't do anything
296 * get_physical_broadcast - Get number of physical broadcast IDs
305 * lapic_get_maxlvt - get the maximum number of local vector table entries
310 * - we always have APIC integrated on 64bit mode in lapic_get_maxlvt()
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/Linux-v6.1/arch/x86/kvm/
Dlapic.c1 // SPDX-License-Identifier: GPL-2.0-only
47 #define mod_64(x, y) ((x) - (y) * div64_u64(x, y))
69 /* step-by-step approximation to mitigate fluctuation */
81 __kvm_lapic_set_reg(apic->regs, reg_off, val); in kvm_lapic_set_reg()
92 return __kvm_lapic_get_reg64(apic->regs, reg); in kvm_lapic_get_reg64()
104 __kvm_lapic_set_reg64(apic->regs, reg, val); in kvm_lapic_set_reg64()
114 struct kvm_lapic *apic = vcpu->arch.apic; in kvm_apic_pending_eoi()
116 return apic_test_vector(vector, apic->regs + APIC_ISR) || in kvm_apic_pending_eoi()
117 apic_test_vector(vector, apic->regs + APIC_IRR); in kvm_apic_pending_eoi()
147 return apic->vcpu->vcpu_id; in kvm_x2apic_id()
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/Linux-v6.1/arch/arm/
DKconfig1 # SPDX-License-Identifier: GPL-2.0
144 The ARM series is a line of low-power-consumption RISC chip designs
146 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
147 manufactured, but legacy ARM-based PC hardware remains popular in
158 supported in LLD until version 14. The combined range is -/+ 256 MiB,
251 Patch phys-to-virt and virt-to-phys translation functions at
255 This can only be used with non-XIP MMU kernels where the base
302 bool "MMU-based Paged Memory Management Support"
305 Select if you want MMU-based virtualised addressing space
373 bool "ARMv7 based platforms (Cortex-A, PJ4, Scorpion, Krait)"
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/Linux-v6.1/arch/arm64/kernel/
Dcpufeature.c1 // SPDX-License-Identifier: GPL-2.0-only
9 * there's a little bit of over-abstraction that tends to obscure what's going
14 * user-visible instructions are available only on a subset of the available
18 * snapshot state to indicate the lowest-common denominator of the feature,
31 * - Mismatched features are *always* sanitised to a "safe" value, which
34 * - A mismatched feature marked with FTR_STRICT will cause a "SANITY CHECK"
38 * - Features marked as FTR_VISIBLE have their sanitised value visible to
43 * - A "feature" is typically a 4-bit register field. A "capability" is the
44 * high-level description derived from the sanitised field value.
46 * - Read the Arm ARM (DDI 0487F.a) section D13.1.3 ("Principles of the ID
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/Linux-v6.1/kernel/events/
Dcore.c1 // SPDX-License-Identifier: GPL-2.0
6 * Copyright (C) 2008-2011 Red Hat, Inc., Ingo Molnar
7 * Copyright (C) 2008-2011 Red Hat, Inc., Peter Zijlstra
75 struct task_struct *p = tfc->p; in remote_function()
78 /* -EAGAIN */ in remote_function()
87 tfc->ret = -ESRCH; /* No such (running) process */ in remote_function()
92 tfc->ret = tfc->func(tfc->info); in remote_function()
96 * task_function_call - call a function on the cpu on which a task runs
106 * returns @func return value or -ESRCH or -ENXIO when the process isn't running
115 .ret = -EAGAIN, in task_function_call()
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/Linux-v6.1/Documentation/virt/kvm/
Dapi.rst1 .. SPDX-License-Identifier: GPL-2.0
4 The Definitive KVM (Kernel-based Virtual Machine) API Documentation
13 - System ioctls: These query and set global attributes which affect the
17 - VM ioctls: These query and set attributes that affect an entire virtual
24 - vcpu ioctls: These query and set attributes that control the operation
32 - device ioctls: These query and set attributes that control the operation
80 facility that allows backward-compatible extensions to the API to be
104 the ioctl returns -ENOTTY.
122 -----------------------
139 -----------------
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