diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-i386/apic.h | 2 | ||||
| -rw-r--r-- | include/asm-i386/paravirt.h | 12 | ||||
| -rw-r--r-- | include/asm-i386/time.h | 1 | ||||
| -rw-r--r-- | include/asm-i386/timer.h | 2 | ||||
| -rw-r--r-- | include/asm-i386/vmi_time.h | 103 |
5 files changed, 120 insertions, 0 deletions
diff --git a/include/asm-i386/apic.h b/include/asm-i386/apic.h index 41a44319905..3a61206fd10 100644 --- a/include/asm-i386/apic.h +++ b/include/asm-i386/apic.h @@ -43,6 +43,8 @@ extern void generic_apic_probe(void); #define apic_write native_apic_write #define apic_write_atomic native_apic_write_atomic #define apic_read native_apic_read +#define setup_boot_clock setup_boot_APIC_clock +#define setup_secondary_clock setup_secondary_APIC_clock #endif static __inline fastcall void native_apic_write(unsigned long reg, diff --git a/include/asm-i386/paravirt.h b/include/asm-i386/paravirt.h index 6ccf36499b2..12ef95924da 100644 --- a/include/asm-i386/paravirt.h +++ b/include/asm-i386/paravirt.h @@ -121,6 +121,8 @@ struct paravirt_ops void (fastcall *apic_write)(unsigned long reg, unsigned long v); void (fastcall *apic_write_atomic)(unsigned long reg, unsigned long v); unsigned long (fastcall *apic_read)(unsigned long reg); + void (*setup_boot_clock)(void); + void (*setup_secondary_clock)(void); #endif void (fastcall *flush_tlb_user)(void); @@ -323,6 +325,16 @@ static inline unsigned long apic_read(unsigned long reg) { return paravirt_ops.apic_read(reg); } + +static inline void setup_boot_clock(void) +{ + paravirt_ops.setup_boot_clock(); +} + +static inline void setup_secondary_clock(void) +{ + paravirt_ops.setup_secondary_clock(); +} #endif #ifdef CONFIG_SMP diff --git a/include/asm-i386/time.h b/include/asm-i386/time.h index ea8065af825..571b4294dc2 100644 --- a/include/asm-i386/time.h +++ b/include/asm-i386/time.h @@ -30,6 +30,7 @@ static inline int native_set_wallclock(unsigned long nowtime) #ifdef CONFIG_PARAVIRT #include <asm/paravirt.h> +extern unsigned long long native_sched_clock(void); #else /* !CONFIG_PARAVIRT */ #define get_wallclock() native_get_wallclock() diff --git a/include/asm-i386/timer.h b/include/asm-i386/timer.h index 1ee64e34cd3..4752c3a6a70 100644 --- a/include/asm-i386/timer.h +++ b/include/asm-i386/timer.h @@ -9,6 +9,8 @@ void setup_pit_timer(void); extern int pit_latch_buggy; extern int timer_ack; extern int no_timer_check; +extern unsigned long long (*custom_sched_clock)(void); +extern int no_sync_cmos_clock; extern int recalibrate_cpu_khz(void); #endif diff --git a/include/asm-i386/vmi_time.h b/include/asm-i386/vmi_time.h new file mode 100644 index 00000000000..c1293121100 --- /dev/null +++ b/include/asm-i386/vmi_time.h @@ -0,0 +1,103 @@ +/* + * VMI Time wrappers + * + * Copyright (C) 2006, VMware, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or + * NON INFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * Send feedback to dhecht@vmware.com + * + */ + +#ifndef __VMI_TIME_H +#define __VMI_TIME_H + +/* + * Raw VMI call indices for timer functions + */ +#define VMI_CALL_GetCycleFrequency 66 +#define VMI_CALL_GetCycleCounter 67 +#define VMI_CALL_SetAlarm 68 +#define VMI_CALL_CancelAlarm 69 +#define VMI_CALL_GetWallclockTime 70 +#define VMI_CALL_WallclockUpdated 71 + +/* Cached VMI timer operations */ +extern struct vmi_timer_ops { + u64 (*get_cycle_frequency)(void); + u64 (*get_cycle_counter)(int); + u64 (*get_wallclock)(void); + int (*wallclock_updated)(void); + void (*set_alarm)(u32 flags, u64 expiry, u64 period); + void (*cancel_alarm)(u32 flags); +} vmi_timer_ops; + +/* Prototypes */ +extern void __init vmi_time_init(void); +extern unsigned long vmi_get_wallclock(void); +extern int vmi_set_wallclock(unsigned long now); +extern unsigned long long vmi_sched_clock(void); + +#ifdef CONFIG_X86_LOCAL_APIC +extern void __init vmi_timer_setup_boot_alarm(void); +extern void __init vmi_timer_setup_secondary_alarm(void); +extern void apic_vmi_timer_interrupt(void); +#endif + +#ifdef CONFIG_NO_IDLE_HZ +extern int vmi_stop_hz_timer(void); +extern void vmi_account_time_restart_hz_timer(void); +#endif + +/* + * When run under a hypervisor, a vcpu is always in one of three states: + * running, halted, or ready. The vcpu is in the 'running' state if it + * is executing. When the vcpu executes the halt interface, the vcpu + * enters the 'halted' state and remains halted until there is some work + * pending for the vcpu (e.g. an alarm expires, host I/O completes on + * behalf of virtual I/O). At this point, the vcpu enters the 'ready' + * state (waiting for the hypervisor to reschedule it). Finally, at any + * time when the vcpu is not in the 'running' state nor the 'halted' + * state, it is in the 'ready' state. + * + * Real time is advances while the vcpu is 'running', 'ready', or + * 'halted'. Stolen time is the time in which the vcpu is in the + * 'ready' state. Available time is the remaining time -- the vcpu is + * either 'running' or 'halted'. + * + * All three views of time are accessible through the VMI cycle + * counters. + */ + +/* The cycle counters. */ +#define VMI_CYCLES_REAL 0 +#define VMI_CYCLES_AVAILABLE 1 +#define VMI_CYCLES_STOLEN 2 + +/* The alarm interface 'flags' bits */ +#define VMI_ALARM_COUNTERS 2 + +#define VMI_ALARM_COUNTER_MASK 0x000000ff + +#define VMI_ALARM_WIRED_IRQ0 0x00000000 +#define VMI_ALARM_WIRED_LVTT 0x00010000 + +#define VMI_ALARM_IS_ONESHOT 0x00000000 +#define VMI_ALARM_IS_PERIODIC 0x00000100 + +#define CONFIG_VMI_ALARM_HZ 100 + +#endif |