search for: vmi_cycles_avail

...tic DEFINE_PER_CPU(unsigned long long, stolen_cycles_accounted_cpu); + +/* Clock source. */ +static inline cycle_t read_real_cycles(void) +{ + return vmi_timer_ops.get_cycle_counter(VMI_CYCLES_REAL); +} + +static inline cycle_t read_available_cycles(void) +{ + return vmi_timer_ops.get_cycle_counter(VMI_CYCLES_AVAILABLE); +} + +static inline cycle_t read_stolen_cycles(void) +{ + return vmi_timer_ops.get_cycle_counter(VMI_CYCLES_STOLEN); +} + +static struct clocksource clocksource_vmi = { + .name = "vmi-timer", + .rating = 450, + .read = read_real_cycles, + .mask = CLOCKSOURCE_MASK(64), + .mul...

...tic DEFINE_PER_CPU(unsigned long long, stolen_cycles_accounted_cpu); + +/* Clock source. */ +static inline cycle_t read_real_cycles(void) +{ + return vmi_timer_ops.get_cycle_counter(VMI_CYCLES_REAL); +} + +static inline cycle_t read_available_cycles(void) +{ + return vmi_timer_ops.get_cycle_counter(VMI_CYCLES_AVAILABLE); +} + +static inline cycle_t read_stolen_cycles(void) +{ + return vmi_timer_ops.get_cycle_counter(VMI_CYCLES_STOLEN); +} + +static struct clocksource clocksource_vmi = { + .name = "vmi-timer", + .rating = 450, + .read = read_real_cycles, + .mask = CLOCKSOURCE_MASK(64), + .mul...

...tic DEFINE_PER_CPU(unsigned long long, stolen_cycles_accounted_cpu); + +/* Clock source. */ +static inline cycle_t read_real_cycles(void) +{ + return vmi_timer_ops.get_cycle_counter(VMI_CYCLES_REAL); +} + +static inline cycle_t read_available_cycles(void) +{ + return vmi_timer_ops.get_cycle_counter(VMI_CYCLES_AVAILABLE); +} + +static inline cycle_t read_stolen_cycles(void) +{ + return vmi_timer_ops.get_cycle_counter(VMI_CYCLES_STOLEN); +} + +static struct clocksource clocksource_vmi = { + .name = "vmi-timer", + .rating = 450, + .read = read_real_cycles, + .mask = CLOCKSOURCE_MASK(64), + .mul...

...tic DEFINE_PER_CPU(unsigned long long, stolen_cycles_accounted_cpu); + +/* Clock source. */ +static inline cycle_t read_real_cycles(void) +{ + return vmi_timer_ops.get_cycle_counter(VMI_CYCLES_REAL); +} + +static inline cycle_t read_available_cycles(void) +{ + return vmi_timer_ops.get_cycle_counter(VMI_CYCLES_AVAILABLE); +} + +static inline cycle_t read_stolen_cycles(void) +{ + return vmi_timer_ops.get_cycle_counter(VMI_CYCLES_STOLEN); +} + +static struct clocksource clocksource_vmi = { + .name = "vmi-timer", + .rating = 450, + .read = read_real_cycles, + .mask = CLOCKSOURCE_MASK(64), + .mul...

...c + + return wallclock; +} + +/* paravirt_ops.set_wallclock = vmi_set_wallclock */ +int vmi_set_wallclock(unsigned long now) +{ + return 0; +} + +/* paravirt_ops.get_scheduled_cycles = vmi_get_sched_cycles */ +unsigned long long vmi_get_sched_cycles(void) +{ + return vmi_timer_ops.get_cycle_counter(VMI_CYCLES_AVAILABLE); +} + +/* paravirt_ops.get_cpu_khz = vmi_cpu_khz */ +unsigned long vmi_cpu_khz(void) +{ + unsigned long long khz; + khz = vmi_timer_ops.get_cycle_frequency(); + (void)do_div(khz, 1000); + return khz; +} + +static inline unsigned int vmi_get_timer_vector(void) +{ +#ifdef CONFIG_X86_IO_APIC + re...

...c + + return wallclock; +} + +/* paravirt_ops.set_wallclock = vmi_set_wallclock */ +int vmi_set_wallclock(unsigned long now) +{ + return 0; +} + +/* paravirt_ops.get_scheduled_cycles = vmi_get_sched_cycles */ +unsigned long long vmi_get_sched_cycles(void) +{ + return vmi_timer_ops.get_cycle_counter(VMI_CYCLES_AVAILABLE); +} + +/* paravirt_ops.get_cpu_khz = vmi_cpu_khz */ +unsigned long vmi_cpu_khz(void) +{ + unsigned long long khz; + khz = vmi_timer_ops.get_cycle_frequency(); + (void)do_div(khz, 1000); + return khz; +} + +static inline unsigned int vmi_get_timer_vector(void) +{ +#ifdef CONFIG_X86_IO_APIC + re...

...else - idle = 1; + return 0; + } /* Convert jiffies to the real cycle counter. */ do { @@ -404,17 +400,13 @@ int vmi_stop_hz_timer(void) } while (read_seqretry(&xtime_lock, seq)); /* This cpu is going idle. Disable the periodic alarm. */ - if (idle) { - vmi_timer_ops.cancel_alarm(VMI_CYCLES_AVAILABLE); - per_cpu(idle_start_jiffies, cpu) = jiffies; - } - + vmi_timer_ops.cancel_alarm(VMI_CYCLES_AVAILABLE); + per_cpu(idle_start_jiffies, cpu) = jiffies; /* Set the real time alarm to expire at the next event. */ vmi_timer_ops.set_alarm( - VMI_ALARM_WIRING | VMI_ALARM_IS_ONESHOT | VMI...

...else - idle = 1; + return 0; + } /* Convert jiffies to the real cycle counter. */ do { @@ -404,17 +400,13 @@ int vmi_stop_hz_timer(void) } while (read_seqretry(&xtime_lock, seq)); /* This cpu is going idle. Disable the periodic alarm. */ - if (idle) { - vmi_timer_ops.cancel_alarm(VMI_CYCLES_AVAILABLE); - per_cpu(idle_start_jiffies, cpu) = jiffies; - } - + vmi_timer_ops.cancel_alarm(VMI_CYCLES_AVAILABLE); + per_cpu(idle_start_jiffies, cpu) = jiffies; /* Set the real time alarm to expire at the next event. */ vmi_timer_ops.set_alarm( - VMI_ALARM_WIRING | VMI_ALARM_IS_ONESHOT | VMI...

...r_alarm); + + /* Disable PIT. */ + outb_p(0x3a, PIT_MODE); /* binary, mode 5, LSB/MSB, ch 0 */ + + /* schedule the alarm. do this in phase with process_times_cycles_accounted_cpu + * reduce the latency calling update_process_times. */ + vmi_set_alarm(VMI_ALARM_WIRED_IRQ0 | VMI_ALARM_IS_PERIODIC | VMI_CYCLES_AVAILABLE, + per_cpu(process_times_cycles_accounted_cpu, 0) + cycles_per_alarm, + cycles_per_alarm); + + /* this routine is called after setup_vmi_timer -- too late to + * fall back to the PIT for timer interrupts. */ + if (override[0] && strncmp(override,"vmi",3)) + p...

...r_alarm); + + /* Disable PIT. */ + outb_p(0x3a, PIT_MODE); /* binary, mode 5, LSB/MSB, ch 0 */ + + /* schedule the alarm. do this in phase with process_times_cycles_accounted_cpu + * reduce the latency calling update_process_times. */ + vmi_set_alarm(VMI_ALARM_WIRED_IRQ0 | VMI_ALARM_IS_PERIODIC | VMI_CYCLES_AVAILABLE, + per_cpu(process_times_cycles_accounted_cpu, 0) + cycles_per_alarm, + cycles_per_alarm); + + /* this routine is called after setup_vmi_timer -- too late to + * fall back to the PIT for timer interrupts. */ + if (override[0] && strncmp(override,"vmi",3)) + p...

Hi Andi, This is a set of updates for the firstfloor patch queue. Quick rundown: revert-mm-x86_64-mm-account-for-module-percpu-space-separately-from-kernel-percpu.patch separate-module-percpu-space.patch Update the module percpu accounting patch fix-ff-allow-percpu-variables-to-be-page-aligned.patch Make sure the percpu memory allocation is page-aligned

Hi Andi, This is a set of updates for the firstfloor patch queue. Quick rundown: revert-mm-x86_64-mm-account-for-module-percpu-space-separately-from-kernel-percpu.patch separate-module-percpu-space.patch Update the module percpu accounting patch fix-ff-allow-percpu-variables-to-be-page-aligned.patch Make sure the percpu memory allocation is page-aligned

...TLB 0x01 +#define VMI_FLUSH_GLOBAL 0x02 + +/* Flags used by VMI_FlushSync call */ +#define VMI_FLUSH_PT_UPDATES 0x80 + +/* The number of VMI address translation slot */ +#define VMI_LINEAR_MAP_SLOTS 4 + +/* The cycle counters. */ +#define VMI_CYCLES_REAL 0 +#define VMI_CYCLES_AVAILABLE 1 +#define VMI_CYCLES_STOLEN 2 + +/* The alarm interface 'flags' bits. [TBD: exact format of 'flags'] */ +#define VMI_ALARM_COUNTERS 2 + +#define VMI_ALARM_COUNTER_MASK 0x000000ff + +#define VMI_ALARM_WIRED_IRQ0 0x00000000 +#define VMI_ALARM_WIRED_LVTT 0x000...

...TLB 0x01 +#define VMI_FLUSH_GLOBAL 0x02 + +/* Flags used by VMI_FlushSync call */ +#define VMI_FLUSH_PT_UPDATES 0x80 + +/* The number of VMI address translation slot */ +#define VMI_LINEAR_MAP_SLOTS 4 + +/* The cycle counters. */ +#define VMI_CYCLES_REAL 0 +#define VMI_CYCLES_AVAILABLE 1 +#define VMI_CYCLES_STOLEN 2 + +/* The alarm interface 'flags' bits. [TBD: exact format of 'flags'] */ +#define VMI_ALARM_COUNTERS 2 + +#define VMI_ALARM_COUNTER_MASK 0x000000ff + +#define VMI_ALARM_WIRED_IRQ0 0x00000000 +#define VMI_ALARM_WIRED_LVTT 0x000...

..._pending()) { + cpu_clear(cpu, nohz_cpu_mask); + return; + } + + next = next_timer_interrupt(); + + if (jiffies + VMI_MIN_NO_IDLE_HZ_SKIPPED_TICKS >= next) { + cpu_clear(cpu, nohz_cpu_mask); + return; + } + + /* This cpu is going really idle. Disable the periodic alarm. */ + vmi_cancel_alarm(VMI_CYCLES_AVAILABLE); + + /* Convert jiffies to the real cycle counter. */ + do { + seq = read_seqbegin(&xtime_lock); + real_cycles_expiry = real_cycles_accounted_system + + (next - jiffies) * cycles_per_jiffy; + } while (read_seqretry(&xtime_lock, seq)); + + /* For /proc/vmi/info idle_hz stat. */ +...

..._pending()) { + cpu_clear(cpu, nohz_cpu_mask); + return; + } + + next = next_timer_interrupt(); + + if (jiffies + VMI_MIN_NO_IDLE_HZ_SKIPPED_TICKS >= next) { + cpu_clear(cpu, nohz_cpu_mask); + return; + } + + /* This cpu is going really idle. Disable the periodic alarm. */ + vmi_cancel_alarm(VMI_CYCLES_AVAILABLE); + + /* Convert jiffies to the real cycle counter. */ + do { + seq = read_seqbegin(&xtime_lock); + real_cycles_expiry = real_cycles_accounted_system + + (next - jiffies) * cycles_per_jiffy; + } while (read_seqretry(&xtime_lock, seq)); + + /* For /proc/vmi/info idle_hz stat. */ +...

...gments: Standard + + VMI_GetCycleCounter + + VMICALL VMI_CYCLES VMI_GetCycleCounter(VMI_UINT32 whichCounter); + + VMI_GetCycleCounter returns the current value, in cycles units, of the + counter corresponding to 'whichCounter' if it is one of + VMI_CYCLES_REAL, VMI_CYCLES_AVAILABLE or VMI_CYCLES_STOLEN. + VMI_GetCycleCounter returns 0 for any other value of 'whichCounter'. + + Inputs: EAX = counter index, one of + #define VMI_CYCLES_REAL 0 + #define VMI_CYCLES_AVAILABLE 1 +...

...gments: Standard + + VMI_GetCycleCounter + + VMICALL VMI_CYCLES VMI_GetCycleCounter(VMI_UINT32 whichCounter); + + VMI_GetCycleCounter returns the current value, in cycles units, of the + counter corresponding to 'whichCounter' if it is one of + VMI_CYCLES_REAL, VMI_CYCLES_AVAILABLE or VMI_CYCLES_STOLEN. + VMI_GetCycleCounter returns 0 for any other value of 'whichCounter'. + + Inputs: EAX = counter index, one of + #define VMI_CYCLES_REAL 0 + #define VMI_CYCLES_AVAILABLE 1 +...

...s 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...

...s 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...