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Diffstat (limited to 'tools/arch/x86/include/asm/irq_vectors.h')
| -rw-r--r-- | tools/arch/x86/include/asm/irq_vectors.h | 142 |
1 files changed, 0 insertions, 142 deletions
diff --git a/tools/arch/x86/include/asm/irq_vectors.h b/tools/arch/x86/include/asm/irq_vectors.h deleted file mode 100644 index 3f73ac3ed3a0..000000000000 --- a/tools/arch/x86/include/asm/irq_vectors.h +++ /dev/null @@ -1,142 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_X86_IRQ_VECTORS_H -#define _ASM_X86_IRQ_VECTORS_H - -#include <linux/threads.h> -/* - * Linux IRQ vector layout. - * - * There are 256 IDT entries (per CPU - each entry is 8 bytes) which can - * be defined by Linux. They are used as a jump table by the CPU when a - * given vector is triggered - by a CPU-external, CPU-internal or - * software-triggered event. - * - * Linux sets the kernel code address each entry jumps to early during - * bootup, and never changes them. This is the general layout of the - * IDT entries: - * - * Vectors 0 ... 31 : system traps and exceptions - hardcoded events - * Vectors 32 ... 127 : device interrupts - * Vector 128 : legacy int80 syscall interface - * Vectors 129 ... LOCAL_TIMER_VECTOR-1 - * Vectors LOCAL_TIMER_VECTOR ... 255 : special interrupts - * - * 64-bit x86 has per CPU IDT tables, 32-bit has one shared IDT table. - * - * This file enumerates the exact layout of them: - */ - -/* This is used as an interrupt vector when programming the APIC. */ -#define NMI_VECTOR 0x02 - -/* - * IDT vectors usable for external interrupt sources start at 0x20. - * (0x80 is the syscall vector, 0x30-0x3f are for ISA) - */ -#define FIRST_EXTERNAL_VECTOR 0x20 - -#define IA32_SYSCALL_VECTOR 0x80 - -/* - * Vectors 0x30-0x3f are used for ISA interrupts. - * round up to the next 16-vector boundary - */ -#define ISA_IRQ_VECTOR(irq) (((FIRST_EXTERNAL_VECTOR + 16) & ~15) + irq) - -/* - * Special IRQ vectors used by the SMP architecture, 0xf0-0xff - * - * some of the following vectors are 'rare', they are merged - * into a single vector (CALL_FUNCTION_VECTOR) to save vector space. - * TLB, reschedule and local APIC vectors are performance-critical. - */ - -#define SPURIOUS_APIC_VECTOR 0xff -/* - * Sanity check - */ -#if ((SPURIOUS_APIC_VECTOR & 0x0F) != 0x0F) -# error SPURIOUS_APIC_VECTOR definition error -#endif - -#define ERROR_APIC_VECTOR 0xfe -#define RESCHEDULE_VECTOR 0xfd -#define CALL_FUNCTION_VECTOR 0xfc -#define CALL_FUNCTION_SINGLE_VECTOR 0xfb -#define THERMAL_APIC_VECTOR 0xfa -#define THRESHOLD_APIC_VECTOR 0xf9 -#define REBOOT_VECTOR 0xf8 - -/* - * Generic system vector for platform specific use - */ -#define X86_PLATFORM_IPI_VECTOR 0xf7 - -/* - * IRQ work vector: - */ -#define IRQ_WORK_VECTOR 0xf6 - -/* 0xf5 - unused, was UV_BAU_MESSAGE */ -#define DEFERRED_ERROR_VECTOR 0xf4 - -/* Vector on which hypervisor callbacks will be delivered */ -#define HYPERVISOR_CALLBACK_VECTOR 0xf3 - -/* Vector for KVM to deliver posted interrupt IPI */ -#if IS_ENABLED(CONFIG_KVM) -#define POSTED_INTR_VECTOR 0xf2 -#define POSTED_INTR_WAKEUP_VECTOR 0xf1 -#define POSTED_INTR_NESTED_VECTOR 0xf0 -#endif - -#define MANAGED_IRQ_SHUTDOWN_VECTOR 0xef - -#if IS_ENABLED(CONFIG_HYPERV) -#define HYPERV_REENLIGHTENMENT_VECTOR 0xee -#define HYPERV_STIMER0_VECTOR 0xed -#endif - -#define LOCAL_TIMER_VECTOR 0xec - -#define NR_VECTORS 256 - -#ifdef CONFIG_X86_LOCAL_APIC -#define FIRST_SYSTEM_VECTOR LOCAL_TIMER_VECTOR -#else -#define FIRST_SYSTEM_VECTOR NR_VECTORS -#endif - -#define NR_EXTERNAL_VECTORS (FIRST_SYSTEM_VECTOR - FIRST_EXTERNAL_VECTOR) -#define NR_SYSTEM_VECTORS (NR_VECTORS - FIRST_SYSTEM_VECTOR) - -/* - * Size the maximum number of interrupts. - * - * If the irq_desc[] array has a sparse layout, we can size things - * generously - it scales up linearly with the maximum number of CPUs, - * and the maximum number of IO-APICs, whichever is higher. - * - * In other cases we size more conservatively, to not create too large - * static arrays. - */ - -#define NR_IRQS_LEGACY 16 - -#define CPU_VECTOR_LIMIT (64 * NR_CPUS) -#define IO_APIC_VECTOR_LIMIT (32 * MAX_IO_APICS) - -#if defined(CONFIG_X86_IO_APIC) && defined(CONFIG_PCI_MSI) -#define NR_IRQS \ - (CPU_VECTOR_LIMIT > IO_APIC_VECTOR_LIMIT ? \ - (NR_VECTORS + CPU_VECTOR_LIMIT) : \ - (NR_VECTORS + IO_APIC_VECTOR_LIMIT)) -#elif defined(CONFIG_X86_IO_APIC) -#define NR_IRQS (NR_VECTORS + IO_APIC_VECTOR_LIMIT) -#elif defined(CONFIG_PCI_MSI) -#define NR_IRQS (NR_VECTORS + CPU_VECTOR_LIMIT) -#else -#define NR_IRQS NR_IRQS_LEGACY -#endif - -#endif /* _ASM_X86_IRQ_VECTORS_H */ |