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/* MIPS Exception Priorities, exceptions (including interrupts) are queued up
12 * for the guest in the order specified by their priorities
13 */
14
15#define MIPS_EXC_RESET              0
16#define MIPS_EXC_SRESET             1
17#define MIPS_EXC_DEBUG_ST           2
18#define MIPS_EXC_DEBUG              3
19#define MIPS_EXC_DDB                4
20#define MIPS_EXC_NMI                5
21#define MIPS_EXC_MCHK               6
22#define MIPS_EXC_INT_TIMER          7
23#define MIPS_EXC_INT_IO             8
24#define MIPS_EXC_EXECUTE            9
25#define MIPS_EXC_INT_IPI_1          10
26#define MIPS_EXC_INT_IPI_2          11
27#define MIPS_EXC_MAX                12
28/* XXXSL More to follow */
29
30#define C_TI        (_ULCAST_(1) << 30)
31
32#define KVM_MIPS_IRQ_DELIVER_ALL_AT_ONCE (0)
33#define KVM_MIPS_IRQ_CLEAR_ALL_AT_ONCE   (0)
34
35void kvm_mips_queue_irq(struct kvm_vcpu *vcpu, uint32_t priority);
36void kvm_mips_dequeue_irq(struct kvm_vcpu *vcpu, uint32_t priority);
37int kvm_mips_pending_timer(struct kvm_vcpu *vcpu);
38
39void kvm_mips_queue_timer_int_cb(struct kvm_vcpu *vcpu);
40void kvm_mips_dequeue_timer_int_cb(struct kvm_vcpu *vcpu);
41void kvm_mips_queue_io_int_cb(struct kvm_vcpu *vcpu,
42			      struct kvm_mips_interrupt *irq);
43void kvm_mips_dequeue_io_int_cb(struct kvm_vcpu *vcpu,
44				struct kvm_mips_interrupt *irq);
45int kvm_mips_irq_deliver_cb(struct kvm_vcpu *vcpu, unsigned int priority,
46			    uint32_t cause);
47int kvm_mips_irq_clear_cb(struct kvm_vcpu *vcpu, unsigned int priority,
48			  uint32_t cause);
49void kvm_mips_deliver_interrupts(struct kvm_vcpu *vcpu, uint32_t cause);