LXR linux/arch/mips/kvm/interrupt.h

   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             8
  25#define MIPS_EXC_EXECUTE            9
  26#define MIPS_EXC_INT_IPI_1          10
  27#define MIPS_EXC_INT_IPI_2          11
  28#define MIPS_EXC_MAX                12
  29/* XXXSL More to follow */
  30
  31extern char __kvm_mips_vcpu_run_end[];
  32extern char mips32_exception[], mips32_exceptionEnd[];
  33extern char mips32_GuestException[], mips32_GuestExceptionEnd[];
  34
  35#define C_TI        (_ULCAST_(1) << 30)
  36
  37#define KVM_MIPS_IRQ_DELIVER_ALL_AT_ONCE (0)
  38#define KVM_MIPS_IRQ_CLEAR_ALL_AT_ONCE   (0)
  39
  40void kvm_mips_queue_irq(struct kvm_vcpu *vcpu, uint32_t priority);
  41void kvm_mips_dequeue_irq(struct kvm_vcpu *vcpu, uint32_t priority);
  42int kvm_mips_pending_timer(struct kvm_vcpu *vcpu);
  43
  44void kvm_mips_queue_timer_int_cb(struct kvm_vcpu *vcpu);
  45void kvm_mips_dequeue_timer_int_cb(struct kvm_vcpu *vcpu);
  46void kvm_mips_queue_io_int_cb(struct kvm_vcpu *vcpu,
  47                              struct kvm_mips_interrupt *irq);
  48void kvm_mips_dequeue_io_int_cb(struct kvm_vcpu *vcpu,
  49                                struct kvm_mips_interrupt *irq);
  50int kvm_mips_irq_deliver_cb(struct kvm_vcpu *vcpu, unsigned int priority,
  51                            uint32_t cause);
  52int kvm_mips_irq_clear_cb(struct kvm_vcpu *vcpu, unsigned int priority,
  53                          uint32_t cause);
  54void kvm_mips_deliver_interrupts(struct kvm_vcpu *vcpu, uint32_t cause);
  55