1 /* 2 * This file is subject to the terms and conditions of the GNU General Public 3 * License. See the file "COPYING" in the main directory of this archive 4 * for more details. 5 * 6 * KVM/MIPS: Interrupts 7 * Copyright (C) 2012 MIPS Technologies, Inc. All rights reserved. 8 * Authors: Sanjay Lal <sanjayl@kymasys.com> 9 */ 10 11 /* 12 * MIPS Exception Priorities, exceptions (including interrupts) are queued up 13 * for the guest in the order specified by their priorities 14 */ 15 16 #define MIPS_EXC_RESET 0 17 #define MIPS_EXC_SRESET 1 18 #define MIPS_EXC_DEBUG_ST 2 19 #define MIPS_EXC_DEBUG 3 20 #define MIPS_EXC_DDB 4 21 #define MIPS_EXC_NMI 5 22 #define MIPS_EXC_MCHK 6 23 #define MIPS_EXC_INT_TIMER 7 24 #define MIPS_EXC_INT_IO_1 8 25 #define MIPS_EXC_INT_IO_2 9 26 #define MIPS_EXC_EXECUTE 10 27 #define MIPS_EXC_INT_IPI_1 11 28 #define MIPS_EXC_INT_IPI_2 12 29 #define MIPS_EXC_MAX 13 30 /* XXXSL More to follow */ 31 32 #define C_TI (_ULCAST_(1) << 30) 33 34 #ifdef CONFIG_KVM_MIPS_VZ 35 #define KVM_MIPS_IRQ_DELIVER_ALL_AT_ONCE (1) 36 #define KVM_MIPS_IRQ_CLEAR_ALL_AT_ONCE (1) 37 #else 38 #define KVM_MIPS_IRQ_DELIVER_ALL_AT_ONCE (0) 39 #define KVM_MIPS_IRQ_CLEAR_ALL_AT_ONCE (0) 40 #endif 41 42 extern u32 *kvm_priority_to_irq; 43 u32 kvm_irq_to_priority(u32 irq); 44 45 void kvm_mips_queue_irq(struct kvm_vcpu *vcpu, unsigned int priority); 46 void kvm_mips_dequeue_irq(struct kvm_vcpu *vcpu, unsigned int priority); 47 int kvm_mips_pending_timer(struct kvm_vcpu *vcpu); 48 49 void kvm_mips_queue_timer_int_cb(struct kvm_vcpu *vcpu); 50 void kvm_mips_dequeue_timer_int_cb(struct kvm_vcpu *vcpu); 51 void kvm_mips_queue_io_int_cb(struct kvm_vcpu *vcpu, 52 struct kvm_mips_interrupt *irq); 53 void kvm_mips_dequeue_io_int_cb(struct kvm_vcpu *vcpu, 54 struct kvm_mips_interrupt *irq); 55 int kvm_mips_irq_deliver_cb(struct kvm_vcpu *vcpu, unsigned int priority, 56 u32 cause); 57 int kvm_mips_irq_clear_cb(struct kvm_vcpu *vcpu, unsigned int priority, 58 u32 cause); 59 void kvm_mips_deliver_interrupts(struct kvm_vcpu *vcpu, u32 cause); 60