projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blame
| Commit | Line | Data |
|---|---|---|
| 53e72406 MZ |
1 | /* |
| 2 | * Copyright (C) 2012 ARM Ltd. | |
| 3 | * Author: Marc Zyngier <marc.zyngier@arm.com> | |
| 4 | * | |
| 5 | * This program is free software; you can redistribute it and/or modify | |
| 6 | * it under the terms of the GNU General Public License version 2 as | |
| 7 | * published by the Free Software Foundation. | |
| 8 | * | |
| 9 | * This program is distributed in the hope that it will be useful, | |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 12 | * GNU General Public License for more details. | |
| 13 | * | |
| 14 | * You should have received a copy of the GNU General Public License | |
| 15 | * along with this program; if not, write to the Free Software | |
| 16 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA | |
| 17 | */ | |
| 18 | ||
| 19 | #ifndef __ASM_ARM_KVM_ARCH_TIMER_H | |
| 20 | #define __ASM_ARM_KVM_ARCH_TIMER_H | |
| 21 | ||
| 22 | #include <linux/clocksource.h> | |
| 23 | #include <linux/hrtimer.h> | |
| 24 | #include <linux/workqueue.h> | |
| 25 | ||
| 26 | struct arch_timer_kvm { | |
| 27 | #ifdef CONFIG_KVM_ARM_TIMER | |
| 28 | /* Is the timer enabled */ | |
| 29 | bool enabled; | |
| 30 | ||
| 31 | /* Virtual offset */ | |
| 32 | cycle_t cntvoff; | |
| 33 | #endif | |
| 34 | }; | |
| 35 | ||
| 36 | struct arch_timer_cpu { | |
| 37 | #ifdef CONFIG_KVM_ARM_TIMER | |
| 38 | /* Registers: control register, timer value */ | |
| 39 | u32 cntv_ctl; /* Saved/restored */ | |
| 40 | cycle_t cntv_cval; /* Saved/restored */ | |
| 41 | ||
| 42 | /* | |
| 43 | * Anything that is not used directly from assembly code goes | |
| 44 | * here. | |
| 45 | */ | |
| 46 | ||
| 47 | /* Background timer used when the guest is not running */ | |
| 48 | struct hrtimer timer; | |
| 49 | ||
| 50 | /* Work queued with the above timer expires */ | |
| 51 | struct work_struct expired; | |
| 52 | ||
| 53 | /* Background timer active */ | |
| 54 | bool armed; | |
| 55 | ||
| 56 | /* Timer IRQ */ | |
| 57 | const struct kvm_irq_level *irq; | |
| 58 | #endif | |
| 59 | }; | |
| 60 | ||
| 61 | #ifdef CONFIG_KVM_ARM_TIMER | |
| 62 | int kvm_timer_hyp_init(void); | |
| 63 | int kvm_timer_init(struct kvm *kvm); | |
| 64 | void kvm_timer_vcpu_init(struct kvm_vcpu *vcpu); | |
| 65 | void kvm_timer_flush_hwstate(struct kvm_vcpu *vcpu); | |
| 66 | void kvm_timer_sync_hwstate(struct kvm_vcpu *vcpu); | |
| 67 | void kvm_timer_vcpu_terminate(struct kvm_vcpu *vcpu); | |
| 68 | #else | |
| 69 | static inline int kvm_timer_hyp_init(void) | |
| 70 | { | |
| 71 | return 0; | |
| 72 | }; | |
| 73 | ||
| 74 | static inline int kvm_timer_init(struct kvm *kvm) | |
| 75 | { | |
| 76 | return 0; | |
| 77 | } | |
| 78 | ||
| 79 | static inline void kvm_timer_vcpu_init(struct kvm_vcpu *vcpu) {} | |
| 80 | static inline void kvm_timer_flush_hwstate(struct kvm_vcpu *vcpu) {} | |
| 81 | static inline void kvm_timer_sync_hwstate(struct kvm_vcpu *vcpu) {} | |
| 82 | static inline void kvm_timer_vcpu_terminate(struct kvm_vcpu *vcpu) {} | |
| 83 | #endif | |
| 84 | ||
| 85 | #endif |