x86/cpufeature: Replace cpu_has_tsc with boot_cpu_has() usage

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.deSigned-off-by: Ingo Molnar <mingo@kernel.org>

arch/x86/include/asm/cpufeature.h

@@ -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)

arch/x86/include/asm/tsc.h

@@ -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
 

arch/x86/kernel/apic/apic.c

@@ -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

arch/x86/kernel/cpu/common.c

@@ -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);
 

arch/x86/kernel/tsc.c

@@ -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;
 	}

drivers/input/joystick/analog.c

@@ -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;

drivers/net/hamradio/baycom_epp.c

@@ -637,7 +637,7 @@ static int receive(struct net_device *dev, int cnt)
 #include <asm/msr.h>
 #define GETTICK(x)						\
 ({								\
-	if (cpu_has_tsc)                                          \
+	if (boot_cpu_has(X86_FEATURE_TSC))			\
 		x = (unsigned int)rdtsc();			\
 })
 #else /* __i386__ */