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authorAlok Kataria <akataria@vmware.com>2008-07-01 11:43:36 -0700
committerIngo Molnar <mingo@elte.hu>2008-07-09 07:43:28 +0200
commite93ef949fd9a3f237aedfb8e64414b28980530b8 (patch)
tree4856aa8bf0e02ed1692fe7b4f545c52cdc1705a3
parent8fbbc4b45ce3e4c0eeb15004c79c72b6896a79c2 (diff)
x86: rename paravirtualized TSC functions
Rename the paravirtualized calculate_cpu_khz to calibrate_tsc. In all cases, we actually calibrate_tsc and use that as the cpu_khz value. Signed-off-by: Alok N Kataria <akataria@vmware.com> Signed-off-by: Dan Hecht <dhecht@vmware.com> Cc: Dan Hecht <dhecht@vmware.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--arch/x86/kernel/paravirt.c2
-rw-r--r--arch/x86/kernel/tsc.c18
-rw-r--r--arch/x86/kernel/vmi_32.c2
-rw-r--r--arch/x86/kernel/vmiclock_32.c4
-rw-r--r--arch/x86/lguest/boot.c4
-rw-r--r--arch/x86/xen/enlighten.c2
-rw-r--r--arch/x86/xen/time.c4
-rw-r--r--arch/x86/xen/xen-ops.h2
-rw-r--r--include/asm-x86/paravirt.h4
-rw-r--r--include/asm-x86/timer.h4
-rw-r--r--include/asm-x86/vmi_time.h2
11 files changed, 22 insertions, 26 deletions
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index e7e5652f65b..e0f571d58c1 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -285,7 +285,7 @@ struct pv_time_ops pv_time_ops = {
.get_wallclock = native_get_wallclock,
.set_wallclock = native_set_wallclock,
.sched_clock = native_sched_clock,
- .get_cpu_khz = native_calculate_cpu_khz,
+ .get_tsc_khz = native_calibrate_tsc,
};
struct pv_irq_ops pv_irq_ops = {
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index 94c16bdd569..3c36f92160c 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -123,9 +123,9 @@ static u64 __init tsc_read_refs(u64 *pm, u64 *hpet)
}
/**
- * tsc_calibrate - calibrate the tsc on boot
+ * native_calibrate_tsc - calibrate the tsc on boot
*/
-static unsigned int __init tsc_calibrate(void)
+unsigned long native_calibrate_tsc(void)
{
unsigned long flags;
u64 tsc1, tsc2, tr1, tr2, delta, pm1, pm2, hpet1, hpet2;
@@ -195,10 +195,6 @@ out:
return tsc_khz_val;
}
-unsigned long native_calculate_cpu_khz(void)
-{
- return tsc_calibrate();
-}
#ifdef CONFIG_X86_32
/* Only called from the Powernow K7 cpu freq driver */
@@ -208,8 +204,8 @@ int recalibrate_cpu_khz(void)
unsigned long cpu_khz_old = cpu_khz;
if (cpu_has_tsc) {
- cpu_khz = calculate_cpu_khz();
- tsc_khz = cpu_khz;
+ tsc_khz = calibrate_tsc();
+ cpu_khz = tsc_khz;
cpu_data(0).loops_per_jiffy =
cpufreq_scale(cpu_data(0).loops_per_jiffy,
cpu_khz_old, cpu_khz);
@@ -487,10 +483,10 @@ void __init tsc_init(void)
if (!cpu_has_tsc)
return;
- cpu_khz = calculate_cpu_khz();
- tsc_khz = cpu_khz;
+ tsc_khz = calibrate_tsc();
+ cpu_khz = tsc_khz;
- if (!cpu_khz) {
+ if (!tsc_khz) {
mark_tsc_unstable("could not calculate TSC khz");
return;
}
diff --git a/arch/x86/kernel/vmi_32.c b/arch/x86/kernel/vmi_32.c
index 946bf13b44a..b15346092b7 100644
--- a/arch/x86/kernel/vmi_32.c
+++ b/arch/x86/kernel/vmi_32.c
@@ -932,7 +932,7 @@ static inline int __init activate_vmi(void)
pv_apic_ops.setup_secondary_clock = vmi_time_ap_init;
#endif
pv_time_ops.sched_clock = vmi_sched_clock;
- pv_time_ops.get_cpu_khz = vmi_cpu_khz;
+ pv_time_ops.get_tsc_khz = vmi_tsc_khz;
/* We have true wallclock functions; disable CMOS clock sync */
no_sync_cmos_clock = 1;
diff --git a/arch/x86/kernel/vmiclock_32.c b/arch/x86/kernel/vmiclock_32.c
index ba7d19e102b..6953859fe28 100644
--- a/arch/x86/kernel/vmiclock_32.c
+++ b/arch/x86/kernel/vmiclock_32.c
@@ -69,8 +69,8 @@ unsigned long long vmi_sched_clock(void)
return cycles_2_ns(vmi_timer_ops.get_cycle_counter(VMI_CYCLES_AVAILABLE));
}
-/* paravirt_ops.get_cpu_khz = vmi_cpu_khz */
-unsigned long vmi_cpu_khz(void)
+/* paravirt_ops.get_tsc_khz = vmi_tsc_khz */
+unsigned long vmi_tsc_khz(void)
{
unsigned long long khz;
khz = vmi_timer_ops.get_cycle_frequency();
diff --git a/arch/x86/lguest/boot.c b/arch/x86/lguest/boot.c
index e72cf0793fb..50dad44fb54 100644
--- a/arch/x86/lguest/boot.c
+++ b/arch/x86/lguest/boot.c
@@ -607,7 +607,7 @@ static unsigned long lguest_get_wallclock(void)
* what speed it runs at, or 0 if it's unusable as a reliable clock source.
* This matches what we want here: if we return 0 from this function, the x86
* TSC clock will give up and not register itself. */
-static unsigned long lguest_cpu_khz(void)
+static unsigned long lguest_tsc_khz(void)
{
return lguest_data.tsc_khz;
}
@@ -998,7 +998,7 @@ __init void lguest_init(void)
/* time operations */
pv_time_ops.get_wallclock = lguest_get_wallclock;
pv_time_ops.time_init = lguest_time_init;
- pv_time_ops.get_cpu_khz = lguest_cpu_khz;
+ pv_time_ops.get_tsc_khz = lguest_tsc_khz;
/* Now is a good time to look at the implementations of these functions
* before returning to the rest of lguest_init(). */
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index 3b980831602..dcd4e51f2f1 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -1062,7 +1062,7 @@ static const struct pv_time_ops xen_time_ops __initdata = {
.set_wallclock = xen_set_wallclock,
.get_wallclock = xen_get_wallclock,
- .get_cpu_khz = xen_cpu_khz,
+ .get_tsc_khz = xen_tsc_khz,
.sched_clock = xen_sched_clock,
};
diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c
index 64f0038b955..685b77470fc 100644
--- a/arch/x86/xen/time.c
+++ b/arch/x86/xen/time.c
@@ -197,8 +197,8 @@ unsigned long long xen_sched_clock(void)
}
-/* Get the CPU speed from Xen */
-unsigned long xen_cpu_khz(void)
+/* Get the TSC speed from Xen */
+unsigned long xen_tsc_khz(void)
{
u64 xen_khz = 1000000ULL << 32;
const struct pvclock_vcpu_time_info *info =
diff --git a/arch/x86/xen/xen-ops.h b/arch/x86/xen/xen-ops.h
index 9a055592a30..d852ddbb344 100644
--- a/arch/x86/xen/xen-ops.h
+++ b/arch/x86/xen/xen-ops.h
@@ -32,7 +32,7 @@ void __init xen_build_dynamic_phys_to_machine(void);
void xen_setup_timer(int cpu);
void xen_setup_cpu_clockevents(void);
-unsigned long xen_cpu_khz(void);
+unsigned long xen_tsc_khz(void);
void __init xen_time_init(void);
unsigned long xen_get_wallclock(void);
int xen_set_wallclock(unsigned long time);
diff --git a/include/asm-x86/paravirt.h b/include/asm-x86/paravirt.h
index 6d8966f9d19..ef5e8ec6a6a 100644
--- a/include/asm-x86/paravirt.h
+++ b/include/asm-x86/paravirt.h
@@ -84,7 +84,7 @@ struct pv_time_ops {
int (*set_wallclock)(unsigned long);
unsigned long long (*sched_clock)(void);
- unsigned long (*get_cpu_khz)(void);
+ unsigned long (*get_tsc_khz)(void);
};
struct pv_cpu_ops {
@@ -779,7 +779,7 @@ static inline unsigned long long paravirt_sched_clock(void)
{
return PVOP_CALL0(unsigned long long, pv_time_ops.sched_clock);
}
-#define calculate_cpu_khz() (pv_time_ops.get_cpu_khz())
+#define calibrate_tsc() (pv_time_ops.get_tsc_khz())
static inline unsigned long long paravirt_read_pmc(int counter)
{
diff --git a/include/asm-x86/timer.h b/include/asm-x86/timer.h
index 4f6fcb050c1..fb2a4ddddf3 100644
--- a/include/asm-x86/timer.h
+++ b/include/asm-x86/timer.h
@@ -7,14 +7,14 @@
#define TICK_SIZE (tick_nsec / 1000)
unsigned long long native_sched_clock(void);
-unsigned long native_calculate_cpu_khz(void);
+unsigned long native_calibrate_tsc(void);
extern int timer_ack;
extern int no_timer_check;
extern int recalibrate_cpu_khz(void);
#ifndef CONFIG_PARAVIRT
-#define calculate_cpu_khz() native_calculate_cpu_khz()
+#define calibrate_tsc() native_calibrate_tsc()
#endif
/* Accelerators for sched_clock()
diff --git a/include/asm-x86/vmi_time.h b/include/asm-x86/vmi_time.h
index 47818813032..c3118c38515 100644
--- a/include/asm-x86/vmi_time.h
+++ b/include/asm-x86/vmi_time.h
@@ -50,7 +50,7 @@ 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);
-extern unsigned long vmi_cpu_khz(void);
+extern unsigned long vmi_tsc_khz(void);
#ifdef CONFIG_X86_LOCAL_APIC
extern void __devinit vmi_time_bsp_init(void);