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clocksource: Use a plain u64 instead of cycle_t

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There is no point in having an extra type for extra confusion. u64 is
unambiguous.

Conversion was done with the following coccinelle script:

@rem@
@@
-typedef u64 cycle_t;

@fix@
typedef cycle_t;
@@
-cycle_t
+u64

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: John Stultz <john.stultz@linaro.org>
This commit is contained in:
Thomas Gleixner
2016-12-21 20:32:01 +01:00
parent 7c0f6ba682
commit a5a1d1c291
132 changed files with 320 additions and 327 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
kernel/time/clocksource.c
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@@ -170,7 +170,7 @@ void clocksource_mark_unstable(struct clocksource *cs)
static void clocksource_watchdog(unsigned long data)
{
struct clocksource *cs;
cycle_t csnow, wdnow, cslast, wdlast, delta;
u64 csnow, wdnow, cslast, wdlast, delta;
int64_t wd_nsec, cs_nsec;
int next_cpu, reset_pending;

4
kernel/time/jiffies.c
View File

@@ -59,9 +59,9 @@
#define JIFFIES_SHIFT 8
#endif
static cycle_t jiffies_read(struct clocksource *cs)
static u64 jiffies_read(struct clocksource *cs)
{
return (cycle_t) jiffies;
return (u64) jiffies;
}
static struct clocksource clocksource_jiffies = {

6
kernel/time/timecounter.c
View File

@@ -43,7 +43,7 @@ EXPORT_SYMBOL_GPL(timecounter_init);
*/
static u64 timecounter_read_delta(struct timecounter *tc)
{
cycle_t cycle_now, cycle_delta;
u64 cycle_now, cycle_delta;
u64 ns_offset;
/* read cycle counter: */
@@ -80,7 +80,7 @@ EXPORT_SYMBOL_GPL(timecounter_read);
* time previous to the time stored in the cycle counter.
*/
static u64 cc_cyc2ns_backwards(const struct cyclecounter *cc,
cycle_t cycles, u64 mask, u64 frac)
u64 cycles, u64 mask, u64 frac)
{
u64 ns = (u64) cycles;
@@ -90,7 +90,7 @@ static u64 cc_cyc2ns_backwards(const struct cyclecounter *cc,
}
u64 timecounter_cyc2time(struct timecounter *tc,
cycle_t cycle_tstamp)
u64 cycle_tstamp)
{
u64 delta = (cycle_tstamp - tc->cycle_last) & tc->cc->mask;
u64 nsec = tc->nsec, frac = tc->frac;

57
kernel/time/timekeeping.c
View File

@@ -119,10 +119,10 @@ static inline void tk_update_sleep_time(struct timekeeper *tk, ktime_t delta)
#ifdef CONFIG_DEBUG_TIMEKEEPING
#define WARNING_FREQ (HZ*300) /* 5 minute rate-limiting */
static void timekeeping_check_update(struct timekeeper *tk, cycle_t offset)
static void timekeeping_check_update(struct timekeeper *tk, u64 offset)
{
cycle_t max_cycles = tk->tkr_mono.clock->max_cycles;
u64 max_cycles = tk->tkr_mono.clock->max_cycles;
const char *name = tk->tkr_mono.clock->name;
if (offset > max_cycles) {
@@ -158,10 +158,10 @@ static void timekeeping_check_update(struct timekeeper *tk, cycle_t offset)
}
}
static inline cycle_t timekeeping_get_delta(struct tk_read_base *tkr)
static inline u64 timekeeping_get_delta(struct tk_read_base *tkr)
{
struct timekeeper *tk = &tk_core.timekeeper;
cycle_t now, last, mask, max, delta;
u64 now, last, mask, max, delta;
unsigned int seq;
/*
@@ -199,12 +199,12 @@ static inline cycle_t timekeeping_get_delta(struct tk_read_base *tkr)
return delta;
}
#else
static inline void timekeeping_check_update(struct timekeeper *tk, cycle_t offset)
static inline void timekeeping_check_update(struct timekeeper *tk, u64 offset)
{
}
static inline cycle_t timekeeping_get_delta(struct tk_read_base *tkr)
static inline u64 timekeeping_get_delta(struct tk_read_base *tkr)
{
cycle_t cycle_now, delta;
u64 cycle_now, delta;
/* read clocksource */
cycle_now = tkr->read(tkr->clock);
@@ -229,7 +229,7 @@ static inline cycle_t timekeeping_get_delta(struct tk_read_base *tkr)
*/
static void tk_setup_internals(struct timekeeper *tk, struct clocksource *clock)
{
cycle_t interval;
u64 interval;
u64 tmp, ntpinterval;
struct clocksource *old_clock;
@@ -254,7 +254,7 @@ static void tk_setup_internals(struct timekeeper *tk, struct clocksource *clock)
if (tmp == 0)
tmp = 1;
interval = (cycle_t) tmp;
interval = (u64) tmp;
tk->cycle_interval = interval;
/* Go back from cycles -> shifted ns */
@@ -298,8 +298,7 @@ u32 (*arch_gettimeoffset)(void) = default_arch_gettimeoffset;
static inline u32 arch_gettimeoffset(void) { return 0; }
#endif
static inline u64 timekeeping_delta_to_ns(struct tk_read_base *tkr,
cycle_t delta)
static inline u64 timekeeping_delta_to_ns(struct tk_read_base *tkr, u64 delta)
{
u64 nsec;
@@ -312,16 +311,15 @@ static inline u64 timekeeping_delta_to_ns(struct tk_read_base *tkr,
static inline u64 timekeeping_get_ns(struct tk_read_base *tkr)
{
cycle_t delta;
u64 delta;
delta = timekeeping_get_delta(tkr);
return timekeeping_delta_to_ns(tkr, delta);
}
static inline u64 timekeeping_cycles_to_ns(struct tk_read_base *tkr,
cycle_t cycles)
static inline u64 timekeeping_cycles_to_ns(struct tk_read_base *tkr, u64 cycles)
{
cycle_t delta;
u64 delta;
/* calculate the delta since the last update_wall_time */
delta = clocksource_delta(cycles, tkr->cycle_last, tkr->mask);
@@ -454,9 +452,9 @@ u64 notrace ktime_get_boot_fast_ns(void)
EXPORT_SYMBOL_GPL(ktime_get_boot_fast_ns);
/* Suspend-time cycles value for halted fast timekeeper. */
static cycle_t cycles_at_suspend;
static u64 cycles_at_suspend;
static cycle_t dummy_clock_read(struct clocksource *cs)
static u64 dummy_clock_read(struct clocksource *cs)
{
return cycles_at_suspend;
}
@@ -650,7 +648,7 @@ static void timekeeping_update(struct timekeeper *tk, unsigned int action)
static void timekeeping_forward_now(struct timekeeper *tk)
{
struct clocksource *clock = tk->tkr_mono.clock;
cycle_t cycle_now, delta;
u64 cycle_now, delta;
u64 nsec;
cycle_now = tk->tkr_mono.read(clock);
@@ -923,7 +921,7 @@ void ktime_get_snapshot(struct system_time_snapshot *systime_snapshot)
ktime_t base_real;
u64 nsec_raw;
u64 nsec_real;
cycle_t now;
u64 now;
WARN_ON_ONCE(timekeeping_suspended);
@@ -982,8 +980,8 @@ static int scale64_check_overflow(u64 mult, u64 div, u64 *base)
* interval is partial_history_cycles.
*/
static int adjust_historical_crosststamp(struct system_time_snapshot *history,
cycle_t partial_history_cycles,
cycle_t total_history_cycles,
u64 partial_history_cycles,
u64 total_history_cycles,
bool discontinuity,
struct system_device_crosststamp *ts)
{
@@ -1047,7 +1045,7 @@ static int adjust_historical_crosststamp(struct system_time_snapshot *history,
/*
* cycle_between - true if test occurs chronologically between before and after
*/
static bool cycle_between(cycle_t before, cycle_t test, cycle_t after)
static bool cycle_between(u64 before, u64 test, u64 after)
{
if (test > before && test < after)
return true;
@@ -1077,7 +1075,7 @@ int get_device_system_crosststamp(int (*get_time_fn)
{
struct system_counterval_t system_counterval;
struct timekeeper *tk = &tk_core.timekeeper;
cycle_t cycles, now, interval_start;
u64 cycles, now, interval_start;
unsigned int clock_was_set_seq = 0;
ktime_t base_real, base_raw;
u64 nsec_real, nsec_raw;
@@ -1138,7 +1136,7 @@ int get_device_system_crosststamp(int (*get_time_fn)
* current interval
*/
if (do_interp) {
cycle_t partial_history_cycles, total_history_cycles;
u64 partial_history_cycles, total_history_cycles;
bool discontinuity;
/*
@@ -1644,7 +1642,7 @@ void timekeeping_resume(void)
struct clocksource *clock = tk->tkr_mono.clock;
unsigned long flags;
struct timespec64 ts_new, ts_delta;
cycle_t cycle_now;
u64 cycle_now;
sleeptime_injected = false;
read_persistent_clock64(&ts_new);
@@ -2010,11 +2008,10 @@ static inline unsigned int accumulate_nsecs_to_secs(struct timekeeper *tk)
*
* Returns the unconsumed cycles.
*/
static cycle_t logarithmic_accumulation(struct timekeeper *tk, cycle_t offset,
u32 shift,
unsigned int *clock_set)
static u64 logarithmic_accumulation(struct timekeeper *tk, u64 offset,
u32 shift, unsigned int *clock_set)
{
cycle_t interval = tk->cycle_interval << shift;
u64 interval = tk->cycle_interval << shift;
u64 raw_nsecs;
/* If the offset is smaller than a shifted interval, do nothing */
@@ -2055,7 +2052,7 @@ void update_wall_time(void)
{
struct timekeeper *real_tk = &tk_core.timekeeper;
struct timekeeper *tk = &shadow_timekeeper;
cycle_t offset;
u64 offset;
int shift = 0, maxshift;
unsigned int clock_set = 0;
unsigned long flags;

6
kernel/time/timekeeping_internal.h
View File

@@ -13,9 +13,9 @@ extern void tk_debug_account_sleep_time(struct timespec64 *t);
#endif
#ifdef CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE
static inline cycle_t clocksource_delta(cycle_t now, cycle_t last, cycle_t mask)
static inline u64 clocksource_delta(u64 now, u64 last, u64 mask)
{
cycle_t ret = (now - last) & mask;
u64 ret = (now - last) & mask;
/*
* Prevent time going backwards by checking the MSB of mask in
@@ -24,7 +24,7 @@ static inline cycle_t clocksource_delta(cycle_t now, cycle_t last, cycle_t mask)
return ret & ~(mask >> 1) ? 0 : ret;
}
#else
static inline cycle_t clocksource_delta(cycle_t now, cycle_t last, cycle_t mask)
static inline u64 clocksource_delta(u64 now, u64 last, u64 mask)
{
return (now - last) & mask;
}