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x86/cpufeature: Replace cpu_has_tsc with boot_cpu_has() usage

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Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Brian Gerst <brgerst@gmail.com>
Cc: Denys Vlasenko <dvlasenk@redhat.com>
Cc: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Thomas Sailer <t.sailer@alumni.ethz.ch>
Link: http://lkml.kernel.org/r/1459801503-15600-7-git-send-email-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Borislav Petkov 2016-04-04 22:24:59 +02:00 committed by Ingo Molnar
parent a402a8dffc
commit 59e21e3d00
7 changed files with 20 additions and 21 deletions
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1
arch/x86/include/asm/cpufeature.h
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@ -118,7 +118,6 @@ extern const char * const x86_bug_flags[NBUGINTS*32];
set_bit(bit, (unsigned long *)cpu_caps_set); \
} while (0)
#define cpu_has_tsc boot_cpu_has(X86_FEATURE_TSC)
#define cpu_has_apic boot_cpu_has(X86_FEATURE_APIC)
#define cpu_has_fxsr boot_cpu_has(X86_FEATURE_FXSR)
#define cpu_has_xsave boot_cpu_has(X86_FEATURE_XSAVE)

2
arch/x86/include/asm/tsc.h
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@ -22,7 +22,7 @@ extern void disable_TSC(void);
static inline cycles_t get_cycles(void)
{
#ifndef CONFIG_X86_TSC
if (!cpu_has_tsc)
if (!boot_cpu_has(X86_FEATURE_TSC))
return 0;
#endif

10
arch/x86/kernel/apic/apic.c
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@ -607,7 +607,7 @@ static void __init lapic_cal_handler(struct clock_event_device *dev)
long tapic = apic_read(APIC_TMCCT);
unsigned long pm = acpi_pm_read_early();
if (cpu_has_tsc)
if (boot_cpu_has(X86_FEATURE_TSC))
tsc = rdtsc();
switch (lapic_cal_loops++) {
@ -668,7 +668,7 @@ calibrate_by_pmtimer(long deltapm, long *delta, long *deltatsc)
*delta = (long)res;
/* Correct the tsc counter value */
if (cpu_has_tsc) {
if (boot_cpu_has(X86_FEATURE_TSC)) {
res = (((u64)(*deltatsc)) * pm_100ms);
do_div(res, deltapm);
apic_printk(APIC_VERBOSE, "TSC delta adjusted to "
@ -760,7 +760,7 @@ static int __init calibrate_APIC_clock(void)
apic_printk(APIC_VERBOSE, "..... calibration result: %u\n",
lapic_timer_frequency);
if (cpu_has_tsc) {
if (boot_cpu_has(X86_FEATURE_TSC)) {
apic_printk(APIC_VERBOSE, "..... CPU clock speed is "
"%ld.%04ld MHz.\n",
(deltatsc / LAPIC_CAL_LOOPS) / (1000000 / HZ),
@ -1227,7 +1227,7 @@ void setup_local_APIC(void)
unsigned long long tsc = 0, ntsc;
long long max_loops = cpu_khz ? cpu_khz : 1000000;
if (cpu_has_tsc)
if (boot_cpu_has(X86_FEATURE_TSC))
tsc = rdtsc();
if (disable_apic) {
@ -1311,7 +1311,7 @@ void setup_local_APIC(void)
break;
}
if (queued) {
if (cpu_has_tsc && cpu_khz) {
if (boot_cpu_has(X86_FEATURE_TSC) && cpu_khz) {
ntsc = rdtsc();
max_loops = (cpu_khz << 10) - (ntsc - tsc);
} else

2
arch/x86/kernel/cpu/common.c
View File

@ -1558,7 +1558,7 @@ void cpu_init(void)
pr_info("Initializing CPU#%d\n", cpu);
if (cpu_feature_enabled(X86_FEATURE_VME) ||
cpu_has_tsc ||
boot_cpu_has(X86_FEATURE_TSC) ||
boot_cpu_has(X86_FEATURE_DE))
cr4_clear_bits(X86_CR4_VME|X86_CR4_PVI|X86_CR4_TSD|X86_CR4_DE);

12
arch/x86/kernel/tsc.c
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@ -36,7 +36,7 @@ static int __read_mostly tsc_unstable;
/* native_sched_clock() is called before tsc_init(), so
we must start with the TSC soft disabled to prevent
erroneous rdtsc usage on !cpu_has_tsc processors */
erroneous rdtsc usage on !boot_cpu_has(X86_FEATURE_TSC) processors */
static int __read_mostly tsc_disabled = -1;
static DEFINE_STATIC_KEY_FALSE(__use_tsc);
@ -834,7 +834,7 @@ int recalibrate_cpu_khz(void)
#ifndef CONFIG_SMP
unsigned long cpu_khz_old = cpu_khz;
if (cpu_has_tsc) {
if (boot_cpu_has(X86_FEATURE_TSC)) {
tsc_khz = x86_platform.calibrate_tsc();
cpu_khz = tsc_khz;
cpu_data(0).loops_per_jiffy =
@ -956,7 +956,7 @@ static struct notifier_block time_cpufreq_notifier_block = {
static int __init cpufreq_tsc(void)
{
if (!cpu_has_tsc)
if (!boot_cpu_has(X86_FEATURE_TSC))
return 0;
if (boot_cpu_has(X86_FEATURE_CONSTANT_TSC))
return 0;
@ -1081,7 +1081,7 @@ static void __init check_system_tsc_reliable(void)
*/
int unsynchronized_tsc(void)
{
if (!cpu_has_tsc || tsc_unstable)
if (!boot_cpu_has(X86_FEATURE_TSC) || tsc_unstable)
return 1;
#ifdef CONFIG_SMP
@ -1205,7 +1205,7 @@ static void tsc_refine_calibration_work(struct work_struct *work)
static int __init init_tsc_clocksource(void)
{
if (!cpu_has_tsc || tsc_disabled > 0 || !tsc_khz)
if (!boot_cpu_has(X86_FEATURE_TSC) || tsc_disabled > 0 || !tsc_khz)
return 0;
if (tsc_clocksource_reliable)
@ -1242,7 +1242,7 @@ void __init tsc_init(void)
u64 lpj;
int cpu;
if (!cpu_has_tsc) {
if (!boot_cpu_has(X86_FEATURE_TSC)) {
setup_clear_cpu_cap(X86_FEATURE_TSC_DEADLINE_TIMER);
return;
}

6
drivers/input/joystick/analog.c
View File

@ -143,9 +143,9 @@ struct analog_port {
#include <linux/i8253.h>
#define GET_TIME(x) do { if (cpu_has_tsc) x = (unsigned int)rdtsc(); else x = get_time_pit(); } while (0)
#define DELTA(x,y) (cpu_has_tsc ? ((y) - (x)) : ((x) - (y) + ((x) < (y) ? PIT_TICK_RATE / HZ : 0)))
#define TIME_NAME (cpu_has_tsc?"TSC":"PIT")
#define GET_TIME(x) do { if (boot_cpu_has(X86_FEATURE_TSC)) x = (unsigned int)rdtsc(); else x = get_time_pit(); } while (0)
#define DELTA(x,y) (boot_cpu_has(X86_FEATURE_TSC) ? ((y) - (x)) : ((x) - (y) + ((x) < (y) ? PIT_TICK_RATE / HZ : 0)))
#define TIME_NAME (boot_cpu_has(X86_FEATURE_TSC)?"TSC":"PIT")
static unsigned int get_time_pit(void)
{
unsigned long flags;

8
drivers/net/hamradio/baycom_epp.c
View File

@ -635,10 +635,10 @@ static int receive(struct net_device *dev, int cnt)
#ifdef __i386__
#include <asm/msr.h>
#define GETTICK(x) \
({ \
if (cpu_has_tsc) \
x = (unsigned int)rdtsc(); \
#define GETTICK(x) \
({ \
if (boot_cpu_has(X86_FEATURE_TSC)) \
x = (unsigned int)rdtsc(); \
})
#else /* __i386__ */
#define GETTICK(x)