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_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);