diff options
Diffstat (limited to 'vppinfra/vppinfra/time.h')
| -rw-r--r-- | vppinfra/vppinfra/time.h | 144 |
1 files changed, 89 insertions, 55 deletions
diff --git a/vppinfra/vppinfra/time.h b/vppinfra/vppinfra/time.h index ffafaf70b21..3b89cf789fe 100644 --- a/vppinfra/vppinfra/time.h +++ b/vppinfra/vppinfra/time.h @@ -40,7 +40,8 @@ #include <vppinfra/clib.h> -typedef struct { +typedef struct +{ /* Total run time in clock cycles since clib_time_init call. */ u64 total_cpu_time; @@ -68,71 +69,74 @@ typedef struct { /* Return CPU time stamp as 64bit number. */ #if defined(__x86_64__) || defined(i386) -always_inline u64 clib_cpu_time_now (void) +always_inline u64 +clib_cpu_time_now (void) { u32 a, d; - asm volatile ("rdtsc" - : "=a" (a), "=d" (d)); + asm volatile ("rdtsc":"=a" (a), "=d" (d)); return (u64) a + ((u64) d << (u64) 32); } #elif defined (__powerpc64__) -always_inline u64 clib_cpu_time_now (void) +always_inline u64 +clib_cpu_time_now (void) { u64 t; - asm volatile ("mftb %0" : "=r" (t)); + asm volatile ("mftb %0":"=r" (t)); return t; } #elif defined (__SPU__) -always_inline u64 clib_cpu_time_now (void) +always_inline u64 +clib_cpu_time_now (void) { #ifdef _XLC return spu_rdch (0x8); #else - return 0 /* __builtin_si_rdch (0x8) FIXME */; + return 0 /* __builtin_si_rdch (0x8) FIXME */ ; #endif } #elif defined (__powerpc__) -always_inline u64 clib_cpu_time_now (void) +always_inline u64 +clib_cpu_time_now (void) { u32 hi1, hi2, lo; - asm volatile ( - "1:\n" - "mftbu %[hi1]\n" - "mftb %[lo]\n" - "mftbu %[hi2]\n" - "cmpw %[hi1],%[hi2]\n" - "bne 1b\n" - : [hi1] "=r" (hi1), [hi2] "=r" (hi2), [lo] "=r" (lo)); + asm volatile ("1:\n" + "mftbu %[hi1]\n" + "mftb %[lo]\n" + "mftbu %[hi2]\n" + "cmpw %[hi1],%[hi2]\n" + "bne 1b\n":[hi1] "=r" (hi1),[hi2] "=r" (hi2),[lo] "=r" (lo)); return (u64) lo + ((u64) hi2 << (u64) 32); } #elif defined (__arm__) #if defined(__ARM_ARCH_8A__) -always_inline u64 clib_cpu_time_now (void) /* We may run arm64 in aarch32 mode, to leverage 64bit counter */ +always_inline u64 +clib_cpu_time_now (void) /* We may run arm64 in aarch32 mode, to leverage 64bit counter */ { u64 tsc; - asm volatile("mrrc p15, 0, %Q0, %R0, c9" : "=r" (tsc)); + asm volatile ("mrrc p15, 0, %Q0, %R0, c9":"=r" (tsc)); return tsc; } #elif defined(__ARM_ARCH_7A__) -always_inline u64 clib_cpu_time_now (void) +always_inline u64 +clib_cpu_time_now (void) { u32 tsc; - asm volatile("mrc p15, 0, %0, c9, c13, 0" : "=r" (tsc)); - return (u64)tsc; + asm volatile ("mrc p15, 0, %0, c9, c13, 0":"=r" (tsc)); + return (u64) tsc; } #else -always_inline u64 clib_cpu_time_now (void) +always_inline u64 +clib_cpu_time_now (void) { u32 lo; - asm volatile ("mrc p15, 0, %[lo], c15, c12, 1" - : [lo] "=r" (lo)); + asm volatile ("mrc p15, 0, %[lo], c15, c12, 1":[lo] "=r" (lo)); return (u64) lo; } #endif @@ -140,31 +144,34 @@ always_inline u64 clib_cpu_time_now (void) #elif defined (__xtensa__) /* Stub for now. */ -always_inline u64 clib_cpu_time_now (void) -{ return 0; } +always_inline u64 +clib_cpu_time_now (void) +{ + return 0; +} #elif defined (__TMS320C6X__) -always_inline u64 clib_cpu_time_now (void) +always_inline u64 +clib_cpu_time_now (void) { u32 l, h; asm volatile (" dint\n" " mvc .s2 TSCL,%0\n" - " mvc .s2 TSCH,%1\n" - " rint\n" - : "=b" (l), "=b" (h)); + " mvc .s2 TSCH,%1\n" " rint\n":"=b" (l), "=b" (h)); - return ((u64)h << 32) | l; + return ((u64) h << 32) | l; } #elif defined (__aarch64__) -always_inline u64 clib_cpu_time_now (void) +always_inline u64 +clib_cpu_time_now (void) { u64 tsc; /* Works on Cavium ThunderX. Other platforms: YMMV */ - asm volatile("mrs %0, cntvct_el0" : "=r" (tsc)); + asm volatile ("mrs %0, cntvct_el0":"=r" (tsc)); return tsc; } @@ -176,14 +183,17 @@ always_inline u64 clib_cpu_time_now (void) void clib_time_verify_frequency (clib_time_t * c); -always_inline f64 clib_time_now_internal (clib_time_t * c, u64 n) +always_inline f64 +clib_time_now_internal (clib_time_t * c, u64 n) { u64 l = c->last_cpu_time; u64 t = c->total_cpu_time; t += n - l; c->total_cpu_time = t; c->last_cpu_time = n; - if (PREDICT_FALSE ((c->last_cpu_time - c->last_verify_cpu_time) >> c->log2_clocks_per_frequency_verify)) + if (PREDICT_FALSE + ((c->last_cpu_time - + c->last_verify_cpu_time) >> c->log2_clocks_per_frequency_verify)) clib_time_verify_frequency (c); return t * c->seconds_per_clock; } @@ -191,10 +201,11 @@ always_inline f64 clib_time_now_internal (clib_time_t * c, u64 n) always_inline f64 clib_time_now (clib_time_t * c) { - return clib_time_now_internal (c, clib_cpu_time_now()); + return clib_time_now_internal (c, clib_cpu_time_now ()); } -always_inline void clib_cpu_time_wait (u64 dt) +always_inline void +clib_cpu_time_wait (u64 dt) { u64 t_end = clib_cpu_time_now () + dt; while (clib_cpu_time_now () < t_end) @@ -212,32 +223,36 @@ void clib_time_init (clib_time_t * c); #include <sys/syscall.h> /* Use 64bit floating point to represent time offset from epoch. */ -always_inline f64 unix_time_now (void) +always_inline f64 +unix_time_now (void) { /* clock_gettime without indirect syscall uses GLIBC wrappers which we don't want. Just the bare metal, please. */ struct timespec ts; syscall (SYS_clock_gettime, CLOCK_REALTIME, &ts); - return ts.tv_sec + 1e-9*ts.tv_nsec; + return ts.tv_sec + 1e-9 * ts.tv_nsec; } /* As above but integer number of nano-seconds. */ -always_inline u64 unix_time_now_nsec (void) +always_inline u64 +unix_time_now_nsec (void) { struct timespec ts; syscall (SYS_clock_gettime, CLOCK_REALTIME, &ts); - return 1e9*ts.tv_sec + ts.tv_nsec; + return 1e9 * ts.tv_sec + ts.tv_nsec; } -always_inline f64 unix_usage_now (void) +always_inline f64 +unix_usage_now (void) { struct rusage u; getrusage (RUSAGE_SELF, &u); - return u.ru_utime.tv_sec + 1e-6*u.ru_utime.tv_usec - + u.ru_stime.tv_sec + 1e-6*u.ru_stime.tv_usec; + return u.ru_utime.tv_sec + 1e-6 * u.ru_utime.tv_usec + + u.ru_stime.tv_sec + 1e-6 * u.ru_stime.tv_usec; } -always_inline void unix_sleep (f64 dt) +always_inline void +unix_sleep (f64 dt) { struct timespec t; t.tv_sec = dt; @@ -245,20 +260,39 @@ always_inline void unix_sleep (f64 dt) nanosleep (&t, 0); } -#else /* ! CLIB_UNIX */ +#else /* ! CLIB_UNIX */ -always_inline f64 unix_time_now (void) -{ return 0; } +always_inline f64 +unix_time_now (void) +{ + return 0; +} -always_inline u64 unix_time_now_nsec (void) -{ return 0; } +always_inline u64 +unix_time_now_nsec (void) +{ + return 0; +} -always_inline f64 unix_usage_now (void) -{ return 0; } +always_inline f64 +unix_usage_now (void) +{ + return 0; +} -always_inline void unix_sleep (f64 dt) -{ } +always_inline void +unix_sleep (f64 dt) +{ +} #endif #endif /* included_time_h */ + +/* + * fd.io coding-style-patch-verification: ON + * + * Local Variables: + * eval: (c-set-style "gnu") + * End: + */ |