| prof_machdep.c (219461) | prof_machdep.c (220433) |
|---|---|
| 1/*- 2 * Copyright (c) 1996 Bruce D. Evans. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 1996 Bruce D. Evans. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> |
| 28__FBSDID("$FreeBSD: head/sys/i386/isa/prof_machdep.c 219461 2011-03-10 20:02:58Z jkim $"); | 28__FBSDID("$FreeBSD: head/sys/i386/isa/prof_machdep.c 220433 2011-04-07 23:28:28Z jkim $"); |
| 29 30#ifdef GUPROF 31#include "opt_i586_guprof.h" 32#include "opt_perfmon.h" 33 34#include <sys/param.h> 35#include <sys/systm.h> 36#include <sys/bus.h> --- 128 unchanged lines hidden (view full) --- 165 * Return the time elapsed since the last call. The units are machine- 166 * dependent. 167 */ 168int 169cputime() 170{ 171 u_int count; 172 int delta; | 29 30#ifdef GUPROF 31#include "opt_i586_guprof.h" 32#include "opt_perfmon.h" 33 34#include <sys/param.h> 35#include <sys/systm.h> 36#include <sys/bus.h> --- 128 unchanged lines hidden (view full) --- 165 * Return the time elapsed since the last call. The units are machine- 166 * dependent. 167 */ 168int 169cputime() 170{ 171 u_int count; 172 int delta; |
| 173#if (defined(I586_CPU) || defined(I686_CPU)) && !defined(SMP) && \ 174 defined(PERFMON) && defined(I586_PMC_GUPROF) | 173#if (defined(I586_CPU) || defined(I686_CPU)) && \ 174 defined(PERFMON) && defined(I586_PMC_GUPROF) && !defined(SMP) |
| 175 u_quad_t event_count; 176#endif 177 u_char high, low; 178 static u_int prev_count; 179 180#if defined(I586_CPU) || defined(I686_CPU) 181 if (cputime_clock == CPUTIME_CLOCK_TSC) { 182 /* --- 98 unchanged lines hidden (view full) --- 281 * The start and stop routines need not be here since we turn off profiling 282 * before calling them. They are here for convenience. 283 */ 284 285void 286startguprof(gp) 287 struct gmonparam *gp; 288{ | 175 u_quad_t event_count; 176#endif 177 u_char high, low; 178 static u_int prev_count; 179 180#if defined(I586_CPU) || defined(I686_CPU) 181 if (cputime_clock == CPUTIME_CLOCK_TSC) { 182 /* --- 98 unchanged lines hidden (view full) --- 281 * The start and stop routines need not be here since we turn off profiling 282 * before calling them. They are here for convenience. 283 */ 284 285void 286startguprof(gp) 287 struct gmonparam *gp; 288{ |
| 289 if (cputime_clock == CPUTIME_CLOCK_UNINITIALIZED) { 290 cputime_clock = CPUTIME_CLOCK_I8254; | |
| 291#if defined(I586_CPU) || defined(I686_CPU) | 289#if defined(I586_CPU) || defined(I686_CPU) |
| 292 if (tsc_freq != 0 && mp_ncpus == 1) | 290 uint64_t freq; 291 292 freq = atomic_load_acq_64(&tsc_freq); 293 if (cputime_clock == CPUTIME_CLOCK_UNINITIALIZED) { 294 if (freq != 0 && mp_ncpus == 1) |
| 293 cputime_clock = CPUTIME_CLOCK_TSC; | 295 cputime_clock = CPUTIME_CLOCK_TSC; |
| 294#endif | 296 else 297 cputime_clock = CPUTIME_CLOCK_I8254; |
| 295 } | 298 } |
| 296 gp->profrate = i8254_freq << CPUTIME_CLOCK_I8254_SHIFT; 297#if defined(I586_CPU) || defined(I686_CPU) | |
| 298 if (cputime_clock == CPUTIME_CLOCK_TSC) { | 299 if (cputime_clock == CPUTIME_CLOCK_TSC) { |
| 299 gp->profrate = tsc_freq >> 1; | 300 gp->profrate = freq >> 1; |
| 300 cputime_prof_active = 1; | 301 cputime_prof_active = 1; |
| 301 } | 302 } else 303 gp->profrate = i8254_freq << CPUTIME_CLOCK_I8254_SHIFT; |
| 302#if defined(PERFMON) && defined(I586_PMC_GUPROF) | 304#if defined(PERFMON) && defined(I586_PMC_GUPROF) |
| 303 else if (cputime_clock == CPUTIME_CLOCK_I586_PMC) { | 305 if (cputime_clock == CPUTIME_CLOCK_I586_PMC) { |
| 304 if (perfmon_avail() && 305 perfmon_setup(0, cputime_clock_pmc_conf) == 0) { 306 if (perfmon_start(0) != 0) 307 perfmon_fini(0); 308 else { 309 /* XXX 1 event == 1 us. */ 310 gp->profrate = 1000000; 311 --- 8 unchanged lines hidden (view full) --- 320 gp->mexitcount_post_overhead = 0; 321 gp->mexitcount_pre_overhead = 0; 322 323 cputime_clock_pmc_init = TRUE; 324 } 325 } 326 } 327#endif /* PERFMON && I586_PMC_GUPROF */ | 306 if (perfmon_avail() && 307 perfmon_setup(0, cputime_clock_pmc_conf) == 0) { 308 if (perfmon_start(0) != 0) 309 perfmon_fini(0); 310 else { 311 /* XXX 1 event == 1 us. */ 312 gp->profrate = 1000000; 313 --- 8 unchanged lines hidden (view full) --- 322 gp->mexitcount_post_overhead = 0; 323 gp->mexitcount_pre_overhead = 0; 324 325 cputime_clock_pmc_init = TRUE; 326 } 327 } 328 } 329#endif /* PERFMON && I586_PMC_GUPROF */ |
| 330#else /* !(I586_CPU || I686_CPU) */ 331 if (cputime_clock == CPUTIME_CLOCK_UNINITIALIZED) 332 cputime_clock = CPUTIME_CLOCK_I8254; 333 gp->profrate = i8254_freq << CPUTIME_CLOCK_I8254_SHIFT; |
|
| 328#endif /* I586_CPU || I686_CPU */ 329 cputime_bias = 0; 330 cputime(); 331} 332 333void 334stopguprof(gp) 335 struct gmonparam *gp; --- 35 unchanged lines hidden --- | 334#endif /* I586_CPU || I686_CPU */ 335 cputime_bias = 0; 336 cputime(); 337} 338 339void 340stopguprof(gp) 341 struct gmonparam *gp; --- 35 unchanged lines hidden --- |