On Mon, Apr 23, 2012 at 8:44 AM, Adrian Chadd <adrian_at_freebsd.org> wrote: > Hi Fabien, > > I've heard some rumours that this broke hwpmc support for mips24k. > > Monthadar, can you please provide some background info for this? > This is the log output Using default protocol (TFTP) Entry point: 0x80050100, address range: 0x80050000-0x804f1dcc RedBoot> exec Now booting linux kernel: Base address 0x80050000 Entry 0x80050100 memsize=0x08000000 modetty0=0,n,8,1,hw board=RouterStation PRO ethaddr=00.15.6d.c8.c9.2e CPU platform: Atheros AR7161 rev 2 CPU Frequency=720 MHz CPU DDR Frequency=360 MHz CPU AHB Frequency=180 MHz platform frequency: 720000000 arguments: a0 = 00000002 a1 = 80050028 a2 = 80050000 a3 = 00000001 Cmd line: �������m���������������_}������߾q��������������������������������߿���������_�w���� �����?-����{������~�� Environment: memsize = 0x08000000 modetty0 = 0,n,8,1,hw ethaddr = 00.15.6d.c8.c9.2e board = RouterStation PRO Cache info: picache_stride = 4096 picache_loopcount = 16 pdcache_stride = 4096 pdcache_loopcount = 8 cpu0: MIPS Technologies processor v116.147 MMU: Standard TLB, 16 entries L1 i-cache: 4 ways of 512 sets, 32 bytes per line L1 d-cache: 4 ways of 256 sets, 32 bytes per line Config1=0x9ee3519e<PerfCount,WatchRegs,MIPS16,EJTAG> Config3=0x20 KDB: debugger backends: ddb KDB: current backend: ddb Copyright (c) 1992-2012 The FreeBSD Project. Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994 The Regents of the University of California. All rights reserved. FreeBSD is a registered trademark of The FreeBSD Foundation. FreeBSD 10.0-CURRENT #12: Fri Apr 20 18:03:16 CEST 2012 root_at_freebsd-re-9:/usr/obj/mips.mips/usr/src/sys/RSPRO_USB_PROD mips WARNING: WITNESS option enabled, expect reduced performance. MEMGUARD DEBUGGING ALLOCATOR INITIALIZED: MEMGUARD map base: 0xc0800000 MEMGUARD map limit: 0xc1c00000 MEMGUARD map size: 20480 KBytes real memory = 134217728 (131072K bytes) avail memory = 123117568 (117MB) random device not loaded; using insecure entropy nexus0: <MIPS32 root nexus> clock0: <Generic MIPS32 ticker> on nexus0 Timecounter "MIPS32" frequency 360000000 Hz quality 800 Event timer "MIPS32" frequency 360000000 Hz quality 800 apb0 at irq 4 on nexus0 uart0: <16550 or compatible> on apb0 uart0: console (115200,n,8,1) gpio0: <Atheros AR71XX GPIO driver> on apb0 gpio0: [GIANT-LOCKED] gpio0: gpio pinmask=0x0 gpioc0: <GPIO controller> on gpio0 gpiobus0: <GPIO bus> on gpio0 ehci0: <AR71XX Integrated USB 2.0 controller> at mem 0x1b000000-0x1bffffff irq 1 on nexus0 usbus0: set host controller mode usbus0: EHCI version 1.0 usbus0: set host controller mode usbus0 on ehci0 pcib0 at irq 0 on nexus0 pci0: <PCI bus> on pcib0 pci0: <old, non-VGA display device> at device 0.0 (no driver attached) ath0: <Atheros 5413> irq 0 at device 17.0 on pci0 ath0: AR5413 mac 10.5 RF5413 phy 6.1 ath0: 2GHz radio: 0x0000; 5GHz radio: 0x0063 arge0: <Atheros AR71xx built-in ethernet interface> at mem 0x19000000-0x19000fff irq 2 on nexus0 arge0: No PHY specified, using mask 16 miibus0: <MII bus> on arge0 ukphy0: <Generic IEEE 802.3u media interface> PHY 4 on miibus0 ukphy0: none, 10baseT, 10baseT-FDX, 100baseTX, 100baseTX-FDX, 1000baseT-FDX, 1000baseT-FDX-master, auto arge0: Ethernet address: 00:15:6d:c8:c9:2e arge1: <Atheros AR71xx built-in ethernet interface> at mem 0x1a000000-0x1a000fff irq 3 on nexus0 arge1: No PHY specified, using mask 15 arge1: Ethernet address: 00:15:6d:c8:c9:2f spi0: <AR71XX SPI> at mem 0x1f000000-0x1f00000f on nexus0 spibus0: <spibus bus> on spi0 mx25l0: <M25Pxx Flash Family> at cs 0 on spibus0 mx25l0: mx25ll128, sector 65536 bytes, 256 sectors ar71xx_wdog0: <Atheros AR71XX watchdog timer> on nexus0 Timecounters tick every 1.000 msec usbus0: 480Mbps High Speed USB v2.0 ugen0.1: <Atheros> at usbus0 uhub0: <Atheros EHCI root HUB, class 9/0, rev 2.00/1.00, addr 1> on usbus0 panic: [pmc,4816] npmc miscomputed: ri=0, md->npmc=2 KDB: enter: panic [ thread pid 0 tid 100000 ] Stopped at kdb_enter+0x4c: lui at,0x8050 db> tr Tracing pid 0 tid 100000 td 0x804f76d0 db_trace_thread+30 (?,?,?,?) ra 8068b94800000018 sp 0 sz 0 80075adc+114 (0,?,ffffffff,?) ra 8068b96000000020 sp 100000000 sz 1 80074e24+388 (?,?,?,?) ra 8068b980000000a8 sp 0 sz 0 db_command_loop+70 (?,?,?,?) ra 8068ba2800000018 sp 0 sz 0 80077900+f4 (?,?,?,?) ra 8068ba40000001a8 sp 0 sz 0 kdb_trap+110 (?,?,?,?) ra 8068bbe800000030 sp 0 sz 0 trap+c7c (?,?,?,?) ra 8068bc18000000b8 sp 0 sz 0 MipsKernGenException+134 (0,4,8043b1d4,119) ra 8068bcd0000000c8 sp 100000001 sz 1 kdb_enter+4c (?,?,?,?) ra 8068bd9800000018 sp 0 sz 0 panic+11c (?,12d0,0,2) ra 8068bdb000000028 sp 1 sz 1 800e8ca8+274 (?,?,?,?) ra 8068bdd800000038 sp 0 sz 0 syscall_module_handler+b8 (?,?,?,?) ra 8068be1000000028 sp 0 sz 0 module_register_init+9c (?,?,?,?) ra 8068be3800000028 sp 0 sz 0 mi_startup+138 (?,?,?,?) ra 8068be6000000020 sp 0 sz 0 _start+90 (?,?,?,?) ra 8068be8000000000 sp 0 sz 0 pid 0 db> > Thanks, > > > > adrian > > On 28 March 2012 13:58, Fabien Thomas <fabient_at_freebsd.org> wrote: >> Author: fabient >> Date: Wed Mar 28 20:58:30 2012 >> New Revision: 233628 >> URL: http://svn.freebsd.org/changeset/base/233628 >> >> Log: >> Add software PMC support. >> >> New kernel events can be added at various location for sampling or counting. >> This will for example allow easy system profiling whatever the processor is >> with known tools like pmcstat(8). >> >> Simultaneous usage of software PMC and hardware PMC is possible, for example >> looking at the lock acquire failure, page fault while sampling on >> instructions. >> >> Sponsored by: NETASQ >> MFC after: 1 month >> >> Added: >> head/lib/libpmc/pmc.soft.3 (contents, props changed) >> head/sys/dev/hwpmc/hwpmc_soft.c (contents, props changed) >> head/sys/dev/hwpmc/hwpmc_soft.h (contents, props changed) >> Modified: >> head/lib/libpmc/Makefile >> head/lib/libpmc/libpmc.c >> head/lib/libpmc/pmc.3 >> head/lib/libpmc/pmc.atom.3 >> head/lib/libpmc/pmc.core.3 >> head/lib/libpmc/pmc.core2.3 >> head/lib/libpmc/pmc.corei7.3 >> head/lib/libpmc/pmc.corei7uc.3 >> head/lib/libpmc/pmc.iaf.3 >> head/lib/libpmc/pmc.k7.3 >> head/lib/libpmc/pmc.k8.3 >> head/lib/libpmc/pmc.mips24k.3 >> head/lib/libpmc/pmc.octeon.3 >> head/lib/libpmc/pmc.p4.3 >> head/lib/libpmc/pmc.p5.3 >> head/lib/libpmc/pmc.p6.3 >> head/lib/libpmc/pmc.sandybridge.3 >> head/lib/libpmc/pmc.sandybridgeuc.3 >> head/lib/libpmc/pmc.tsc.3 >> head/lib/libpmc/pmc.ucf.3 >> head/lib/libpmc/pmc.westmere.3 >> head/lib/libpmc/pmc.westmereuc.3 >> head/lib/libpmc/pmc.xscale.3 >> head/lib/libpmc/pmclog.c >> head/lib/libpmc/pmclog.h >> head/sys/amd64/amd64/trap.c >> head/sys/amd64/include/pmc_mdep.h >> head/sys/arm/include/pmc_mdep.h >> head/sys/conf/files >> head/sys/dev/hwpmc/hwpmc_amd.c >> head/sys/dev/hwpmc/hwpmc_core.c >> head/sys/dev/hwpmc/hwpmc_intel.c >> head/sys/dev/hwpmc/hwpmc_logging.c >> head/sys/dev/hwpmc/hwpmc_mips.c >> head/sys/dev/hwpmc/hwpmc_mod.c >> head/sys/dev/hwpmc/hwpmc_piv.c >> head/sys/dev/hwpmc/hwpmc_powerpc.c >> head/sys/dev/hwpmc/hwpmc_ppro.c >> head/sys/dev/hwpmc/hwpmc_tsc.c >> head/sys/dev/hwpmc/hwpmc_x86.c >> head/sys/dev/hwpmc/hwpmc_xscale.c >> head/sys/dev/hwpmc/pmc_events.h >> head/sys/i386/i386/trap.c >> head/sys/i386/include/pmc_mdep.h >> head/sys/kern/kern_clock.c >> head/sys/kern/kern_lock.c >> head/sys/kern/kern_mutex.c >> head/sys/kern/kern_pmc.c >> head/sys/kern/kern_rwlock.c >> head/sys/kern/kern_sx.c >> head/sys/kern/subr_trap.c >> head/sys/mips/include/pmc_mdep.h >> head/sys/modules/hwpmc/Makefile >> head/sys/powerpc/include/pmc_mdep.h >> head/sys/sys/pmc.h >> head/sys/sys/pmckern.h >> head/sys/sys/pmclog.h >> head/usr.sbin/pmcstat/pmcstat_log.c >> >> Modified: head/lib/libpmc/Makefile >> ============================================================================== >> --- head/lib/libpmc/Makefile Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/lib/libpmc/Makefile Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -20,6 +20,7 _at__at_ MAN+= pmc_read.3 >> MAN+= pmc_set.3 >> MAN+= pmc_start.3 >> MAN+= pmclog.3 >> +MAN+= pmc.soft.3 >> >> # PMC-dependent manual pages >> .if ${MACHINE_CPUARCH} == "i386" || ${MACHINE_CPUARCH} == "amd64" >> >> Modified: head/lib/libpmc/libpmc.c >> ============================================================================== >> --- head/lib/libpmc/libpmc.c Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/lib/libpmc/libpmc.c Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -77,11 +77,12 _at__at_ static int tsc_allocate_pmc(enum pmc_eve >> static int xscale_allocate_pmc(enum pmc_event _pe, char *_ctrspec, >> struct pmc_op_pmcallocate *_pmc_config); >> #endif >> - >> #if defined(__mips__) >> static int mips_allocate_pmc(enum pmc_event _pe, char* ctrspec, >> struct pmc_op_pmcallocate *_pmc_config); >> #endif /* __mips__ */ >> +static int soft_allocate_pmc(enum pmc_event _pe, char *_ctrspec, >> + struct pmc_op_pmcallocate *_pmc_config); >> >> #if defined(__powerpc__) >> static int ppc7450_allocate_pmc(enum pmc_event _pe, char* ctrspec, >> _at__at_ -156,6 +157,8 _at__at_ PMC_CLASSDEP_TABLE(octeon, OCTEON); >> PMC_CLASSDEP_TABLE(ucf, UCF); >> PMC_CLASSDEP_TABLE(ppc7450, PPC7450); >> >> +static struct pmc_event_descr soft_event_table[PMC_EV_DYN_COUNT]; >> + >> #undef __PMC_EV_ALIAS >> #define __PMC_EV_ALIAS(N,CODE) { N, PMC_EV_##CODE }, >> >> _at__at_ -215,21 +218,22 _at__at_ static const struct pmc_event_descr west >> PMC_CLASS_##C, __VA_ARGS__ \ >> } >> >> -PMC_MDEP_TABLE(atom, IAP, PMC_CLASS_IAF, PMC_CLASS_TSC); >> -PMC_MDEP_TABLE(core, IAP, PMC_CLASS_TSC); >> -PMC_MDEP_TABLE(core2, IAP, PMC_CLASS_IAF, PMC_CLASS_TSC); >> -PMC_MDEP_TABLE(corei7, IAP, PMC_CLASS_IAF, PMC_CLASS_TSC, PMC_CLASS_UCF, PMC_CLASS_UCP); >> -PMC_MDEP_TABLE(sandybridge, IAP, PMC_CLASS_IAF, PMC_CLASS_TSC, PMC_CLASS_UCF, PMC_CLASS_UCP); >> -PMC_MDEP_TABLE(westmere, IAP, PMC_CLASS_IAF, PMC_CLASS_TSC, PMC_CLASS_UCF, PMC_CLASS_UCP); >> -PMC_MDEP_TABLE(k7, K7, PMC_CLASS_TSC); >> -PMC_MDEP_TABLE(k8, K8, PMC_CLASS_TSC); >> -PMC_MDEP_TABLE(p4, P4, PMC_CLASS_TSC); >> -PMC_MDEP_TABLE(p5, P5, PMC_CLASS_TSC); >> -PMC_MDEP_TABLE(p6, P6, PMC_CLASS_TSC); >> -PMC_MDEP_TABLE(xscale, XSCALE, PMC_CLASS_XSCALE); >> -PMC_MDEP_TABLE(mips24k, MIPS24K, PMC_CLASS_MIPS24K); >> -PMC_MDEP_TABLE(octeon, OCTEON, PMC_CLASS_OCTEON); >> -PMC_MDEP_TABLE(ppc7450, PPC7450, PMC_CLASS_PPC7450); >> +PMC_MDEP_TABLE(atom, IAP, PMC_CLASS_SOFT, PMC_CLASS_IAF, PMC_CLASS_TSC); >> +PMC_MDEP_TABLE(core, IAP, PMC_CLASS_SOFT, PMC_CLASS_TSC); >> +PMC_MDEP_TABLE(core2, IAP, PMC_CLASS_SOFT, PMC_CLASS_IAF, PMC_CLASS_TSC); >> +PMC_MDEP_TABLE(corei7, IAP, PMC_CLASS_SOFT, PMC_CLASS_IAF, PMC_CLASS_TSC, PMC_CLASS_UCF, PMC_CLASS_UCP); >> +PMC_MDEP_TABLE(sandybridge, IAP, PMC_CLASS_SOFT, PMC_CLASS_IAF, PMC_CLASS_TSC, PMC_CLASS_UCF, PMC_CLASS_UCP); >> +PMC_MDEP_TABLE(westmere, IAP, PMC_CLASS_SOFT, PMC_CLASS_IAF, PMC_CLASS_TSC, PMC_CLASS_UCF, PMC_CLASS_UCP); >> +PMC_MDEP_TABLE(k7, K7, PMC_CLASS_SOFT, PMC_CLASS_TSC); >> +PMC_MDEP_TABLE(k8, K8, PMC_CLASS_SOFT, PMC_CLASS_TSC); >> +PMC_MDEP_TABLE(p4, P4, PMC_CLASS_SOFT, PMC_CLASS_TSC); >> +PMC_MDEP_TABLE(p5, P5, PMC_CLASS_SOFT, PMC_CLASS_TSC); >> +PMC_MDEP_TABLE(p6, P6, PMC_CLASS_SOFT, PMC_CLASS_TSC); >> +PMC_MDEP_TABLE(xscale, XSCALE, PMC_CLASS_SOFT, PMC_CLASS_XSCALE); >> +PMC_MDEP_TABLE(mips24k, MIPS24K, PMC_CLASS_SOFT, PMC_CLASS_MIPS24K); >> +PMC_MDEP_TABLE(octeon, OCTEON, PMC_CLASS_SOFT, PMC_CLASS_OCTEON); >> +PMC_MDEP_TABLE(ppc7450, PPC7450, PMC_CLASS_SOFT, PMC_CLASS_PPC7450); >> +PMC_MDEP_TABLE(generic, SOFT, PMC_CLASS_SOFT); >> >> static const struct pmc_event_descr tsc_event_table[] = >> { >> _at__at_ -279,16 +283,24 _at__at_ PMC_CLASS_TABLE_DESC(tsc, TSC, tsc, tsc) >> #if defined(__XSCALE__) >> PMC_CLASS_TABLE_DESC(xscale, XSCALE, xscale, xscale); >> #endif >> - >> #if defined(__mips__) >> PMC_CLASS_TABLE_DESC(mips24k, MIPS24K, mips24k, mips); >> PMC_CLASS_TABLE_DESC(octeon, OCTEON, octeon, mips); >> #endif /* __mips__ */ >> - >> #if defined(__powerpc__) >> PMC_CLASS_TABLE_DESC(ppc7450, PPC7450, ppc7450, ppc7450); >> #endif >> >> +static struct pmc_class_descr soft_class_table_descr = >> +{ >> + .pm_evc_name = "SOFT-", >> + .pm_evc_name_size = sizeof("SOFT-") - 1, >> + .pm_evc_class = PMC_CLASS_SOFT, >> + .pm_evc_event_table = NULL, >> + .pm_evc_event_table_size = 0, >> + .pm_evc_allocate_pmc = soft_allocate_pmc >> +}; >> + >> #undef PMC_CLASS_TABLE_DESC >> >> static const struct pmc_class_descr **pmc_class_table; >> _at__at_ -343,9 +355,12 _at__at_ static const char * pmc_state_names[] = >> __PMC_STATES() >> }; >> >> -static int pmc_syscall = -1; /* filled in by pmc_init() */ >> - >> -static struct pmc_cpuinfo cpu_info; /* filled in by pmc_init() */ >> +/* >> + * Filled in by pmc_init(). >> + */ >> +static int pmc_syscall = -1; >> +static struct pmc_cpuinfo cpu_info; >> +static struct pmc_op_getdyneventinfo soft_event_info; >> >> /* Event masks for events */ >> struct pmc_masks { >> _at__at_ -2179,6 +2194,25 _at__at_ tsc_allocate_pmc(enum pmc_event pe, char >> } >> #endif >> >> +static struct pmc_event_alias generic_aliases[] = { >> + EV_ALIAS("instructions", "SOFT-CLOCK.HARD"), >> + EV_ALIAS(NULL, NULL) >> +}; >> + >> +static int >> +soft_allocate_pmc(enum pmc_event pe, char *ctrspec, >> + struct pmc_op_pmcallocate *pmc_config) >> +{ >> + (void)ctrspec; >> + (void)pmc_config; >> + >> + if (pe < PMC_EV_SOFT_FIRST || pe > PMC_EV_SOFT_LAST) >> + return (-1); >> + >> + pmc_config->pm_caps |= (PMC_CAP_READ | PMC_CAP_WRITE); >> + return (0); >> +} >> + >> #if defined(__XSCALE__) >> >> static struct pmc_event_alias xscale_aliases[] = { >> _at__at_ -2663,6 +2697,10 _at__at_ pmc_event_names_of_class(enum pmc_class >> ev = ppc7450_event_table; >> count = PMC_EVENT_TABLE_SIZE(ppc7450); >> break; >> + case PMC_CLASS_SOFT: >> + ev = soft_event_table; >> + count = soft_event_info.pm_nevent; >> + break; >> default: >> errno = EINVAL; >> return (-1); >> _at__at_ -2676,6 +2714,7 _at__at_ pmc_event_names_of_class(enum pmc_class >> >> for (;count--; ev++, names++) >> *names = ev->pm_ev_name; >> + >> return (0); >> } >> >> _at__at_ -2780,11 +2819,34 _at__at_ pmc_init(void) >> pmc_class_table[n] = NULL; >> >> /* >> + * Get soft events list. >> + */ >> + soft_event_info.pm_class = PMC_CLASS_SOFT; >> + if (PMC_CALL(GETDYNEVENTINFO, &soft_event_info) < 0) >> + return (pmc_syscall = -1); >> + >> + /* Map soft events to static list. */ >> + for (n = 0; n < soft_event_info.pm_nevent; n++) { >> + soft_event_table[n].pm_ev_name = >> + soft_event_info.pm_events[n].pm_ev_name; >> + soft_event_table[n].pm_ev_code = >> + soft_event_info.pm_events[n].pm_ev_code; >> + } >> + soft_class_table_descr.pm_evc_event_table_size = \ >> + soft_event_info.pm_nevent; >> + soft_class_table_descr.pm_evc_event_table = \ >> + soft_event_table; >> + >> + /* >> * Fill in the class table. >> */ >> n = 0; >> + >> + /* Fill soft events information. */ >> + pmc_class_table[n++] = &soft_class_table_descr; >> #if defined(__amd64__) || defined(__i386__) >> - pmc_class_table[n++] = &tsc_class_table_descr; >> + if (cpu_info.pm_cputype != PMC_CPU_GENERIC) >> + pmc_class_table[n++] = &tsc_class_table_descr; >> >> /* >> * Check if this CPU has fixed function counters. >> _at__at_ -2867,6 +2929,9 _at__at_ pmc_init(void) >> pmc_class_table[n] = &p4_class_table_descr; >> break; >> #endif >> + case PMC_CPU_GENERIC: >> + PMC_MDEP_INIT(generic); >> + break; >> #if defined(__XSCALE__) >> case PMC_CPU_INTEL_XSCALE: >> PMC_MDEP_INIT(xscale); >> _at__at_ -3035,18 +3100,19 _at__at_ _pmc_name_of_event(enum pmc_event pe, en >> evfence = xscale_event_table + PMC_EVENT_TABLE_SIZE(xscale); >> } else if (pe >= PMC_EV_MIPS24K_FIRST && pe <= PMC_EV_MIPS24K_LAST) { >> ev = mips24k_event_table; >> - evfence = mips24k_event_table + PMC_EVENT_TABLE_SIZE(mips24k >> -); >> + evfence = mips24k_event_table + PMC_EVENT_TABLE_SIZE(mips24k); >> } else if (pe >= PMC_EV_OCTEON_FIRST && pe <= PMC_EV_OCTEON_LAST) { >> ev = octeon_event_table; >> evfence = octeon_event_table + PMC_EVENT_TABLE_SIZE(octeon); >> } else if (pe >= PMC_EV_PPC7450_FIRST && pe <= PMC_EV_PPC7450_LAST) { >> ev = ppc7450_event_table; >> - evfence = ppc7450_event_table + PMC_EVENT_TABLE_SIZE(ppc7450 >> -); >> + evfence = ppc7450_event_table + PMC_EVENT_TABLE_SIZE(ppc7450); >> } else if (pe == PMC_EV_TSC_TSC) { >> ev = tsc_event_table; >> evfence = tsc_event_table + PMC_EVENT_TABLE_SIZE(tsc); >> + } else if (pe >= PMC_EV_SOFT_FIRST && pe <= PMC_EV_SOFT_LAST) { >> + ev = soft_event_table; >> + evfence = soft_event_table + soft_event_info.pm_nevent; >> } >> >> for (; ev != evfence; ev++) >> >> Modified: head/lib/libpmc/pmc.3 >> ============================================================================== >> --- head/lib/libpmc/pmc.3 Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/lib/libpmc/pmc.3 Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -223,6 +223,8 _at__at_ and >> CPUs. >> .It Li PMC_CLASS_TSC >> The timestamp counter on i386 and amd64 architecture CPUs. >> +.It Li PMC_CLASS_SOFT >> +Software events. >> .El >> .Ss PMC Capabilities >> Capabilities of performance monitoring hardware are denoted using >> _at__at_ -525,6 +527,7 _at__at_ API is >> .Xr pmc.p4 3 , >> .Xr pmc.p5 3 , >> .Xr pmc.p6 3 , >> +.Xr pmc.soft 3 , >> .Xr pmc.tsc 3 , >> .Xr pmclog 3 , >> .Xr hwpmc 4 , >> >> Modified: head/lib/libpmc/pmc.atom.3 >> ============================================================================== >> --- head/lib/libpmc/pmc.atom.3 Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/lib/libpmc/pmc.atom.3 Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -1176,6 +1176,7 _at__at_ and the underlying hardware events used >> .Xr pmc.p4 3 , >> .Xr pmc.p5 3 , >> .Xr pmc.p6 3 , >> +.Xr pmc.soft 3 , >> .Xr pmc.tsc 3 , >> .Xr pmc_cpuinfo 3 , >> .Xr pmclog 3 , >> >> Modified: head/lib/libpmc/pmc.core.3 >> ============================================================================== >> --- head/lib/libpmc/pmc.core.3 Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/lib/libpmc/pmc.core.3 Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -792,6 +792,7 _at__at_ may not count some transitions. >> .Xr pmc.p4 3 , >> .Xr pmc.p5 3 , >> .Xr pmc.p6 3 , >> +.Xr pmc.soft 3 , >> .Xr pmc.tsc 3 , >> .Xr pmclog 3 , >> .Xr hwpmc 4 >> >> Modified: head/lib/libpmc/pmc.core2.3 >> ============================================================================== >> --- head/lib/libpmc/pmc.core2.3 Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/lib/libpmc/pmc.core2.3 Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -1107,6 +1107,7 _at__at_ and the underlying hardware events used. >> .Xr pmc.p4 3 , >> .Xr pmc.p5 3 , >> .Xr pmc.p6 3 , >> +.Xr pmc.soft 3 , >> .Xr pmc.tsc 3 , >> .Xr pmc_cpuinfo 3 , >> .Xr pmclog 3 , >> >> Modified: head/lib/libpmc/pmc.corei7.3 >> ============================================================================== >> --- head/lib/libpmc/pmc.corei7.3 Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/lib/libpmc/pmc.corei7.3 Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -1559,6 +1559,7 _at__at_ Counts number of segment register loads. >> .Xr pmc.corei7uc 3 , >> .Xr pmc.westmere 3 , >> .Xr pmc.westmereuc 3 , >> +.Xr pmc.soft 3 , >> .Xr pmc.tsc 3 , >> .Xr pmc_cpuinfo 3 , >> .Xr pmclog 3 , >> >> Modified: head/lib/libpmc/pmc.corei7uc.3 >> ============================================================================== >> --- head/lib/libpmc/pmc.corei7uc.3 Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/lib/libpmc/pmc.corei7uc.3 Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -863,6 +863,7 _at__at_ refreshed or needs to go into a power do >> .Xr pmc.corei7 3 , >> .Xr pmc.westmere 3 , >> .Xr pmc.westmereuc 3 , >> +.Xr pmc.soft 3 , >> .Xr pmc.tsc 3 , >> .Xr pmc_cpuinfo 3 , >> .Xr pmclog 3 , >> >> Modified: head/lib/libpmc/pmc.iaf.3 >> ============================================================================== >> --- head/lib/libpmc/pmc.iaf.3 Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/lib/libpmc/pmc.iaf.3 Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -132,6 +132,7 _at__at_ CPU, use the event specifier >> .Xr pmc.p4 3 , >> .Xr pmc.p5 3 , >> .Xr pmc.p6 3 , >> +.Xr pmc.soft 3 , >> .Xr pmc.tsc 3 , >> .Xr pmc_cpuinfo 3 , >> .Xr pmclog 3 , >> >> Modified: head/lib/libpmc/pmc.k7.3 >> ============================================================================== >> --- head/lib/libpmc/pmc.k7.3 Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/lib/libpmc/pmc.k7.3 Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -249,6 +249,7 _at__at_ and the underlying hardware events used. >> .Xr pmc.p4 3 , >> .Xr pmc.p5 3 , >> .Xr pmc.p6 3 , >> +.Xr pmc.soft 3 , >> .Xr pmc.tsc 3 , >> .Xr pmclog 3 , >> .Xr hwpmc 4 >> >> Modified: head/lib/libpmc/pmc.k8.3 >> ============================================================================== >> --- head/lib/libpmc/pmc.k8.3 Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/lib/libpmc/pmc.k8.3 Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -783,6 +783,7 _at__at_ and the underlying hardware events used. >> .Xr pmc.p4 3 , >> .Xr pmc.p5 3 , >> .Xr pmc.p6 3 , >> +.Xr pmc.soft 3 , >> .Xr pmc.tsc 3 , >> .Xr pmclog 3 , >> .Xr hwpmc 4 >> >> Modified: head/lib/libpmc/pmc.mips24k.3 >> ============================================================================== >> --- head/lib/libpmc/pmc.mips24k.3 Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/lib/libpmc/pmc.mips24k.3 Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -392,6 +392,7 _at__at_ and the underlying hardware events used. >> .Xr pmc.p4 3 , >> .Xr pmc.p5 3 , >> .Xr pmc.p6 3 , >> +.Xr pmc.soft 3 , >> .Xr pmc.tsc 3 , >> .Xr pmc_cpuinfo 3 , >> .Xr pmclog 3 , >> >> Modified: head/lib/libpmc/pmc.octeon.3 >> ============================================================================== >> --- head/lib/libpmc/pmc.octeon.3 Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/lib/libpmc/pmc.octeon.3 Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -232,6 +232,7 _at__at_ and the underlying hardware events used. >> .Xr pmc.p4 3 , >> .Xr pmc.p5 3 , >> .Xr pmc.p6 3 , >> +.Xr pmc.soft 3 , >> .Xr pmc.tsc 3 , >> .Xr pmc_cpuinfo 3 , >> .Xr pmclog 3 , >> >> Modified: head/lib/libpmc/pmc.p4.3 >> ============================================================================== >> --- head/lib/libpmc/pmc.p4.3 Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/lib/libpmc/pmc.p4.3 Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -1208,6 +1208,7 _at__at_ and the underlying hardware events used. >> .Xr pmc.k8 3 , >> .Xr pmc.p5 3 , >> .Xr pmc.p6 3 , >> +.Xr pmc.soft 3 , >> .Xr pmc.tsc 3 , >> .Xr pmclog 3 , >> .Xr hwpmc 4 >> >> Modified: head/lib/libpmc/pmc.p5.3 >> ============================================================================== >> --- head/lib/libpmc/pmc.p5.3 Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/lib/libpmc/pmc.p5.3 Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -444,6 +444,7 _at__at_ and the underlying hardware events used. >> .Xr pmc.k8 3 , >> .Xr pmc.p4 3 , >> .Xr pmc.p6 3 , >> +.Xr pmc.soft 3 , >> .Xr pmc.tsc 3 , >> .Xr pmclog 3 , >> .Xr hwpmc 4 >> >> Modified: head/lib/libpmc/pmc.p6.3 >> ============================================================================== >> --- head/lib/libpmc/pmc.p6.3 Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/lib/libpmc/pmc.p6.3 Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -1010,6 +1010,7 _at__at_ and the underlying hardware events used. >> .Xr pmc.k8 3 , >> .Xr pmc.p4 3 , >> .Xr pmc.p5 3 , >> +.Xr pmc.soft 3 , >> .Xr pmc.tsc 3 , >> .Xr pmclog 3 , >> .Xr hwpmc 4 >> >> Modified: head/lib/libpmc/pmc.sandybridge.3 >> ============================================================================== >> --- head/lib/libpmc/pmc.sandybridge.3 Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/lib/libpmc/pmc.sandybridge.3 Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -907,6 +907,7 _at__at_ Split locks in SQ. >> .Xr pmc.p5 3 , >> .Xr pmc.p6 3 , >> .Xr pmc.sandybridgeuc 3 , >> +.Xr pmc.soft 3 , >> .Xr pmc.tsc 3 , >> .Xr pmc.ucf 3 , >> .Xr pmc.westmere 3 , >> >> Modified: head/lib/libpmc/pmc.sandybridgeuc.3 >> ============================================================================== >> --- head/lib/libpmc/pmc.sandybridgeuc.3 Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/lib/libpmc/pmc.sandybridgeuc.3 Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -208,6 +208,7 _at__at_ Counts the number of core-outgoing entri >> .Xr pmc.p5 3 , >> .Xr pmc.p6 3 , >> .Xr pmc.sandybridge 3 , >> +.Xr pmc.soft 3 , >> .Xr pmc.tsc 3 , >> .Xr pmc.ucf 3 , >> .Xr pmc.westmere 3 , >> >> Added: head/lib/libpmc/pmc.soft.3 >> ============================================================================== >> --- /dev/null 00:00:00 1970 (empty, because file is newly added) >> +++ head/lib/libpmc/pmc.soft.3 Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -0,0 +1,104 _at__at_ >> +.\" Copyright (c) 2012 Fabien Thomas. All rights reserved. >> +.\" >> +.\" Redistribution and use in source and binary forms, with or without >> +.\" modification, are permitted provided that the following conditions >> +.\" are met: >> +.\" 1. Redistributions of source code must retain the above copyright >> +.\" notice, this list of conditions and the following disclaimer. >> +.\" 2. Redistributions in binary form must reproduce the above copyright >> +.\" notice, this list of conditions and the following disclaimer in the >> +.\" documentation and/or other materials provided with the distribution. >> +.\" >> +.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND >> +.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE >> +.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE >> +.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE >> +.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL >> +.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS >> +.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) >> +.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT >> +.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY >> +.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF >> +.\" SUCH DAMAGE. >> +.\" >> +.\" $FreeBSD$ >> +.\" >> +.Dd March 28, 2012 >> +.Os >> +.Dt PMC.SOFT 3 >> +.Sh NAME >> +.Nm pmc.soft >> +.Nd measurements using software based events >> +.Sh LIBRARY >> +.Lb libpmc >> +.Sh SYNOPSIS >> +.In pmc.h >> +.Sh DESCRIPTION >> +Software events are used to collect various source of software events. >> +.Ss PMC Features >> +16 sampling counters using software events based on various sources. >> +These PMCs support the following capabilities: >> +.Bl -column "PMC_CAP_INTERRUPT" "Support" >> +.It Em Capability Ta Em Support >> +.It PMC_CAP_CASCADE Ta \&No >> +.It PMC_CAP_EDGE Ta \&No >> +.It PMC_CAP_INTERRUPT Ta Yes >> +.It PMC_CAP_INVERT Ta \&No >> +.It PMC_CAP_READ Ta Yes >> +.It PMC_CAP_PRECISE Ta \&No >> +.It PMC_CAP_SYSTEM Ta Yes >> +.It PMC_CAP_TAGGING Ta \&No >> +.It PMC_CAP_THRESHOLD Ta \&No >> +.It PMC_CAP_USER Ta Yes >> +.It PMC_CAP_WRITE Ta Yes >> +.El >> +.Ss Event Qualifiers >> +There is no supported event qualifier. >> +.Pp >> +The event specifiers supported by software are: >> +.Bl -tag -width indent >> +.It Li CLOCK.HARD >> +Hard clock ticks. >> +.It Li CLOCK.STAT >> +Stat clock ticks. >> +.It Li LOCK.FAILED >> +Lock acquisition failed. >> +.It Li PAGE_FAULT.ALL >> +All page fault type. >> +.It Li PAGE_FAULT.READ >> +Read page fault. >> +.It Li PAGE_FAULT.WRITE >> +Write page fault. >> +.El >> +.Sh SEE ALSO >> +.Xr pmc 3 , >> +.Xr pmc.atom 3 , >> +.Xr pmc.core 3 , >> +.Xr pmc.iaf 3 , >> +.Xr pmc.ucf 3 , >> +.Xr pmc.k7 3 , >> +.Xr pmc.k8 3 , >> +.Xr pmc.p4 3 , >> +.Xr pmc.p5 3 , >> +.Xr pmc.p6 3 , >> +.Xr pmc.corei7 3 , >> +.Xr pmc.corei7uc 3 , >> +.Xr pmc.westmereuc 3 , >> +.Xr pmc.tsc 3 , >> +.Xr pmc_cpuinfo 3 , >> +.Xr pmclog 3 , >> +.Xr hwpmc 4 >> +.Sh HISTORY >> +The >> +.Nm pmc >> +library first appeared in >> +.Fx 6.0 . >> +.Sh AUTHORS >> +The >> +.Lb libpmc >> +library was written by >> +.An "Joseph Koshy" >> +.Aq jkoshy_at_FreeBSD.org . >> +Software PMC was written by >> +.An "Fabien Thomas" >> +.Aq fabient_at_FreeBSD.org . >> >> Modified: head/lib/libpmc/pmc.tsc.3 >> ============================================================================== >> --- head/lib/libpmc/pmc.tsc.3 Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/lib/libpmc/pmc.tsc.3 Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -68,6 +68,7 _at__at_ maps to the TSC. >> .Xr pmc.p4 3 , >> .Xr pmc.p5 3 , >> .Xr pmc.p6 3 , >> +.Xr pmc.soft 3 , >> .Xr pmclog 3 , >> .Xr hwpmc 4 >> .Sh HISTORY >> >> Modified: head/lib/libpmc/pmc.ucf.3 >> ============================================================================== >> --- head/lib/libpmc/pmc.ucf.3 Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/lib/libpmc/pmc.ucf.3 Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -96,6 +96,7 _at__at_ offset C0H under device number 0 and Fun >> .Xr pmc.corei7uc 3 , >> .Xr pmc.westmere 3 , >> .Xr pmc.westmereuc 3 , >> +.Xr pmc.soft 3 , >> .Xr pmc.tsc 3 , >> .Xr pmc_cpuinfo 3 , >> .Xr pmclog 3 , >> >> Modified: head/lib/libpmc/pmc.westmere.3 >> ============================================================================== >> --- head/lib/libpmc/pmc.westmere.3 Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/lib/libpmc/pmc.westmere.3 Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -1381,6 +1381,7 _at__at_ Counts number of SID integer 64 bit shif >> .Xr pmc.corei7 3 , >> .Xr pmc.corei7uc 3 , >> .Xr pmc.westmereuc 3 , >> +.Xr pmc.soft 3 , >> .Xr pmc.tsc 3 , >> .Xr pmc_cpuinfo 3 , >> .Xr pmclog 3 , >> >> Modified: head/lib/libpmc/pmc.westmereuc.3 >> ============================================================================== >> --- head/lib/libpmc/pmc.westmereuc.3 Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/lib/libpmc/pmc.westmereuc.3 Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -1066,6 +1066,7 _at__at_ disabled. >> .Xr pmc.corei7 3 , >> .Xr pmc.corei7uc 3 , >> .Xr pmc.westmere 3 , >> +.Xr pmc.soft 3 , >> .Xr pmc.tsc 3 , >> .Xr pmc_cpuinfo 3 , >> .Xr pmclog 3 , >> >> Modified: head/lib/libpmc/pmc.xscale.3 >> ============================================================================== >> --- head/lib/libpmc/pmc.xscale.3 Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/lib/libpmc/pmc.xscale.3 Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -134,6 +134,7 _at__at_ and the underlying hardware events used. >> .Xr pmc 3 , >> .Xr pmc_cpuinfo 3 , >> .Xr pmclog 3 , >> +.Xr pmc.soft 3 , >> .Xr hwpmc 4 >> .Sh HISTORY >> The >> >> Modified: head/lib/libpmc/pmclog.c >> ============================================================================== >> --- head/lib/libpmc/pmclog.c Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/lib/libpmc/pmclog.c Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -369,6 +369,12 _at__at_ pmclog_get_event(void *cookie, char **da >> == NULL) >> goto error; >> break; >> + case PMCLOG_TYPE_PMCALLOCATEDYN: >> + PMCLOG_READ32(le,ev->pl_u.pl_ad.pl_pmcid); >> + PMCLOG_READ32(le,ev->pl_u.pl_ad.pl_event); >> + PMCLOG_READ32(le,ev->pl_u.pl_ad.pl_flags); >> + PMCLOG_READSTRING(le,ev->pl_u.pl_ad.pl_evname,PMC_NAME_MAX); >> + break; >> case PMCLOG_TYPE_PMCATTACH: >> PMCLOG_GET_PATHLEN(pathlen,evlen,pmclog_pmcattach); >> PMCLOG_READ32(le,ev->pl_u.pl_t.pl_pmcid); >> >> Modified: head/lib/libpmc/pmclog.h >> ============================================================================== >> --- head/lib/libpmc/pmclog.h Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/lib/libpmc/pmclog.h Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -88,6 +88,13 _at__at_ struct pmclog_ev_pmcallocate { >> pmc_id_t pl_pmcid; >> }; >> >> +struct pmclog_ev_pmcallocatedyn { >> + uint32_t pl_event; >> + char pl_evname[PMC_NAME_MAX]; >> + uint32_t pl_flags; >> + pmc_id_t pl_pmcid; >> +}; >> + >> struct pmclog_ev_pmcattach { >> pmc_id_t pl_pmcid; >> pid_t pl_pid; >> _at__at_ -146,6 +153,7 _at__at_ struct pmclog_ev { >> struct pmclog_ev_map_out pl_mo; >> struct pmclog_ev_pcsample pl_s; >> struct pmclog_ev_pmcallocate pl_a; >> + struct pmclog_ev_pmcallocatedyn pl_ad; >> struct pmclog_ev_pmcattach pl_t; >> struct pmclog_ev_pmcdetach pl_d; >> struct pmclog_ev_proccsw pl_c; >> >> Modified: head/sys/amd64/amd64/trap.c >> ============================================================================== >> --- head/sys/amd64/amd64/trap.c Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/sys/amd64/amd64/trap.c Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -71,6 +71,9 _at__at_ __FBSDID("$FreeBSD$"); >> #include <sys/vmmeter.h> >> #ifdef HWPMC_HOOKS >> #include <sys/pmckern.h> >> +PMC_SOFT_DEFINE( , , page_fault, all); >> +PMC_SOFT_DEFINE( , , page_fault, read); >> +PMC_SOFT_DEFINE( , , page_fault, write); >> #endif >> >> #include <vm/vm.h> >> _at__at_ -743,8 +746,20 _at__at_ trap_pfault(frame, usermode) >> */ >> rv = vm_fault(map, va, ftype, VM_FAULT_NORMAL); >> } >> - if (rv == KERN_SUCCESS) >> + if (rv == KERN_SUCCESS) { >> +#ifdef HWPMC_HOOKS >> + if (ftype == VM_PROT_READ || ftype == VM_PROT_WRITE) { >> + PMC_SOFT_CALL_TF( , , page_fault, all, frame); >> + if (ftype == VM_PROT_READ) >> + PMC_SOFT_CALL_TF( , , page_fault, read, >> + frame); >> + else >> + PMC_SOFT_CALL_TF( , , page_fault, write, >> + frame); >> + } >> +#endif >> return (0); >> + } >> nogo: >> if (!usermode) { >> if (td->td_intr_nesting_level == 0 && >> >> Modified: head/sys/amd64/include/pmc_mdep.h >> ============================================================================== >> --- head/sys/amd64/include/pmc_mdep.h Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/sys/amd64/include/pmc_mdep.h Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -50,13 +50,13 _at__at_ struct pmc_mdep; >> * measurement architecture have PMCs of the following classes: TSC, >> * IAF, IAP, UCF and UCP. >> */ >> -#define PMC_MDEP_CLASS_INDEX_TSC 0 >> -#define PMC_MDEP_CLASS_INDEX_K8 1 >> -#define PMC_MDEP_CLASS_INDEX_P4 1 >> -#define PMC_MDEP_CLASS_INDEX_IAP 1 >> -#define PMC_MDEP_CLASS_INDEX_IAF 2 >> -#define PMC_MDEP_CLASS_INDEX_UCP 3 >> -#define PMC_MDEP_CLASS_INDEX_UCF 4 >> +#define PMC_MDEP_CLASS_INDEX_TSC 1 >> +#define PMC_MDEP_CLASS_INDEX_K8 2 >> +#define PMC_MDEP_CLASS_INDEX_P4 2 >> +#define PMC_MDEP_CLASS_INDEX_IAP 2 >> +#define PMC_MDEP_CLASS_INDEX_IAF 3 >> +#define PMC_MDEP_CLASS_INDEX_UCP 4 >> +#define PMC_MDEP_CLASS_INDEX_UCF 5 >> >> /* >> * On the amd64 platform we support the following PMCs. >> _at__at_ -119,6 +119,15 _at__at_ union pmc_md_pmc { >> >> #define PMC_IN_USERSPACE(va) ((va) <= VM_MAXUSER_ADDRESS) >> >> +/* Build a fake kernel trapframe from current instruction pointer. */ >> +#define PMC_FAKE_TRAPFRAME(TF) \ >> + do { \ >> + (TF)->tf_cs = 0; (TF)->tf_rflags = 0; \ >> + __asm __volatile("movq %%rbp,%0" : "=r" ((TF)->tf_rbp)); \ >> + __asm __volatile("movq %%rsp,%0" : "=r" ((TF)->tf_rsp)); \ >> + __asm __volatile("call 1f \n\t1: pop %0" : "=r"((TF)->tf_rip)); \ >> + } while (0) >> + >> /* >> * Prototypes >> */ >> >> Modified: head/sys/arm/include/pmc_mdep.h >> ============================================================================== >> --- head/sys/arm/include/pmc_mdep.h Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/sys/arm/include/pmc_mdep.h Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -29,7 +29,7 _at__at_ >> #ifndef _MACHINE_PMC_MDEP_H_ >> #define _MACHINE_PMC_MDEP_H_ >> >> -#define PMC_MDEP_CLASS_INDEX_XSCALE 0 >> +#define PMC_MDEP_CLASS_INDEX_XSCALE 1 >> /* >> * On the ARM platform we support the following PMCs. >> * >> >> Modified: head/sys/conf/files >> ============================================================================== >> --- head/sys/conf/files Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/sys/conf/files Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -1260,6 +1260,7 _at__at_ dev/hme/if_hme_sbus.c optional hme sbus >> dev/hptiop/hptiop.c optional hptiop scbus >> dev/hwpmc/hwpmc_logging.c optional hwpmc >> dev/hwpmc/hwpmc_mod.c optional hwpmc >> +dev/hwpmc/hwpmc_soft.c optional hwpmc >> dev/ichsmb/ichsmb.c optional ichsmb >> dev/ichsmb/ichsmb_pci.c optional ichsmb pci >> dev/ida/ida.c optional ida >> >> Modified: head/sys/dev/hwpmc/hwpmc_amd.c >> ============================================================================== >> --- head/sys/dev/hwpmc/hwpmc_amd.c Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/sys/dev/hwpmc/hwpmc_amd.c Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -687,7 +687,8 _at__at_ amd_intr(int cpu, struct trapframe *tf) >> wrmsr(perfctr, AMD_RELOAD_COUNT_TO_PERFCTR_VALUE(v)); >> >> /* Restart the counter if logging succeeded. */ >> - error = pmc_process_interrupt(cpu, pm, tf, TRAPF_USERMODE(tf)); >> + error = pmc_process_interrupt(cpu, PMC_HR, pm, tf, >> + TRAPF_USERMODE(tf)); >> if (error == 0) >> wrmsr(evsel, config | AMD_PMC_ENABLE); >> } >> _at__at_ -874,7 +875,7 _at__at_ amd_pcpu_fini(struct pmc_mdep *md, int c >> struct pmc_mdep * >> pmc_amd_initialize(void) >> { >> - int classindex, error, i, nclasses, ncpus; >> + int classindex, error, i, ncpus; >> struct pmc_classdep *pcd; >> enum pmc_cputype cputype; >> struct pmc_mdep *pmc_mdep; >> _at__at_ -926,12 +927,9 _at__at_ pmc_amd_initialize(void) >> * These processors have two classes of PMCs: the TSC and >> * programmable PMCs. >> */ >> - nclasses = 2; >> - pmc_mdep = malloc(sizeof(struct pmc_mdep) + nclasses * sizeof (struct pmc_classdep), >> - M_PMC, M_WAITOK|M_ZERO); >> + pmc_mdep = pmc_mdep_alloc(2); >> >> pmc_mdep->pmd_cputype = cputype; >> - pmc_mdep->pmd_nclass = nclasses; >> >> ncpus = pmc_cpu_max(); >> >> >> Modified: head/sys/dev/hwpmc/hwpmc_core.c >> ============================================================================== >> --- head/sys/dev/hwpmc/hwpmc_core.c Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/sys/dev/hwpmc/hwpmc_core.c Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -2239,7 +2239,7 _at__at_ core_intr(int cpu, struct trapframe *tf) >> if (pm->pm_state != PMC_STATE_RUNNING) >> continue; >> >> - error = pmc_process_interrupt(cpu, pm, tf, >> + error = pmc_process_interrupt(cpu, PMC_HR, pm, tf, >> TRAPF_USERMODE(tf)); >> >> v = pm->pm_sc.pm_reloadcount; >> _at__at_ -2326,7 +2326,7 _at__at_ core2_intr(int cpu, struct trapframe *tf >> !PMC_IS_SAMPLING_MODE(PMC_TO_MODE(pm))) >> continue; >> >> - error = pmc_process_interrupt(cpu, pm, tf, >> + error = pmc_process_interrupt(cpu, PMC_HR, pm, tf, >> TRAPF_USERMODE(tf)); >> if (error) >> intrenable &= ~flag; >> _at__at_ -2354,7 +2354,7 _at__at_ core2_intr(int cpu, struct trapframe *tf >> !PMC_IS_SAMPLING_MODE(PMC_TO_MODE(pm))) >> continue; >> >> - error = pmc_process_interrupt(cpu, pm, tf, >> + error = pmc_process_interrupt(cpu, PMC_HR, pm, tf, >> TRAPF_USERMODE(tf)); >> if (error) >> intrenable &= ~flag; >> >> Modified: head/sys/dev/hwpmc/hwpmc_intel.c >> ============================================================================== >> --- head/sys/dev/hwpmc/hwpmc_intel.c Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/sys/dev/hwpmc/hwpmc_intel.c Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -162,12 +162,10 _at__at_ pmc_intel_initialize(void) >> return (NULL); >> } >> >> - pmc_mdep = malloc(sizeof(struct pmc_mdep) + nclasses * >> - sizeof(struct pmc_classdep), M_PMC, M_WAITOK|M_ZERO); >> + /* Allocate base class and initialize machine dependent struct */ >> + pmc_mdep = pmc_mdep_alloc(nclasses); >> >> pmc_mdep->pmd_cputype = cputype; >> - pmc_mdep->pmd_nclass = nclasses; >> - >> pmc_mdep->pmd_switch_in = intel_switch_in; >> pmc_mdep->pmd_switch_out = intel_switch_out; >> >> >> Modified: head/sys/dev/hwpmc/hwpmc_logging.c >> ============================================================================== >> --- head/sys/dev/hwpmc/hwpmc_logging.c Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/sys/dev/hwpmc/hwpmc_logging.c Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -129,6 +129,7 _at__at_ static struct mtx pmc_kthread_mtx; /* sl >> >> /* Emit a string. Caution: does NOT update _le, so needs to be last */ >> #define PMCLOG_EMITSTRING(S,L) do { bcopy((S), _le, (L)); } while (0) >> +#define PMCLOG_EMITNULLSTRING(L) do { bzero(_le, (L)); } while (0) >> >> #define PMCLOG_DESPATCH(PO) \ >> pmclog_release((PO)); \ >> _at__at_ -835,16 +836,33 _at__at_ void >> pmclog_process_pmcallocate(struct pmc *pm) >> { >> struct pmc_owner *po; >> + struct pmc_soft *ps; >> >> po = pm->pm_owner; >> >> PMCDBG(LOG,ALL,1, "pm=%p", pm); >> >> - PMCLOG_RESERVE(po, PMCALLOCATE, sizeof(struct pmclog_pmcallocate)); >> - PMCLOG_EMIT32(pm->pm_id); >> - PMCLOG_EMIT32(pm->pm_event); >> - PMCLOG_EMIT32(pm->pm_flags); >> - PMCLOG_DESPATCH(po); >> + if (PMC_TO_CLASS(pm) == PMC_CLASS_SOFT) { >> + PMCLOG_RESERVE(po, PMCALLOCATEDYN, >> + sizeof(struct pmclog_pmcallocatedyn)); >> + PMCLOG_EMIT32(pm->pm_id); >> + PMCLOG_EMIT32(pm->pm_event); >> + PMCLOG_EMIT32(pm->pm_flags); >> + ps = pmc_soft_ev_acquire(pm->pm_event); >> + if (ps != NULL) >> + PMCLOG_EMITSTRING(ps->ps_ev.pm_ev_name,PMC_NAME_MAX); >> + else >> + PMCLOG_EMITNULLSTRING(PMC_NAME_MAX); >> + pmc_soft_ev_release(ps); >> + PMCLOG_DESPATCH(po); >> + } else { >> + PMCLOG_RESERVE(po, PMCALLOCATE, >> + sizeof(struct pmclog_pmcallocate)); >> + PMCLOG_EMIT32(pm->pm_id); >> + PMCLOG_EMIT32(pm->pm_event); >> + PMCLOG_EMIT32(pm->pm_flags); >> + PMCLOG_DESPATCH(po); >> + } >> } >> >> void >> >> Modified: head/sys/dev/hwpmc/hwpmc_mips.c >> ============================================================================== >> --- head/sys/dev/hwpmc/hwpmc_mips.c Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/sys/dev/hwpmc/hwpmc_mips.c Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -287,7 +287,7 _at__at_ mips_pmc_intr(int cpu, struct trapframe >> retval = 1; >> if (pm->pm_state != PMC_STATE_RUNNING) >> continue; >> - error = pmc_process_interrupt(cpu, pm, tf, >> + error = pmc_process_interrupt(cpu, PMC_HR, pm, tf, >> TRAPF_USERMODE(tf)); >> if (error) { >> /* Clear/disable the relevant counter */ >> >> Modified: head/sys/dev/hwpmc/hwpmc_mod.c >> ============================================================================== >> --- head/sys/dev/hwpmc/hwpmc_mod.c Wed Mar 28 20:49:11 2012 (r233627) >> +++ head/sys/dev/hwpmc/hwpmc_mod.c Wed Mar 28 20:58:30 2012 (r233628) >> _at__at_ -70,6 +70,8 _at__at_ __FBSDID("$FreeBSD$"); >> #include <vm/vm_map.h> >> #include <vm/vm_object.h> >> >> +#include "hwpmc_soft.h" >> + >> /* >> * Types >> */ >> _at__at_ -182,7 +184,7 _at__at_ static int pmc_attach_one_process(struct >> static int pmc_can_allocate_rowindex(struct proc *p, unsigned int ri, >> int cpu); >> static int pmc_can_attach(struct pmc *pm, struct proc *p); >> -static void pmc_capture_user_callchain(int cpu, struct trapframe *tf); >> +static void pmc_capture_user_callchain(int cpu, int soft, struct trapframe *tf); >> static void pmc_cleanup(void); >> static int pmc_detach_process(struct proc *p, struct pmc *pm); >> static int pmc_detach_one_process(struct proc *p, struct pmc *pm, >> _at__at_ -206,7 +208,7 _at__at_ static void pmc_process_csw_out(struct t >> static void pmc_process_exit(void *arg, struct proc *p); >> static void pmc_process_fork(void *arg, struct proc *p1, >> struct proc *p2, int n); >> -static void pmc_process_samples(int cpu); >> +static void pmc_process_samples(int cpu, int soft); >> static void pmc_release_pmc_descriptor(struct pmc *pmc); >> static void pmc_remove_owner(struct pmc_owner *po); >> static void pmc_remove_process_descriptor(struct pmc_process *pp); >> _at__at_ -218,12 +220,16 _at__at_ static int pmc_stop(struct pmc *pm); >> static int pmc_syscall_handler(struct thread *td, void *syscall_args); >> static void pmc_unlink_target_process(struct pmc *pmc, >> struct pmc_process *pp); >> +static int generic_switch_in(struct pmc_cpu *pc, struct pmc_process *pp); >> +static int generic_switch_out(struct pmc_cpu *pc, struct pmc_process *pp); >> +static struct pmc_mdep *pmc_generic_cpu_initialize(void); >> +static void pmc_generic_cpu_finalize(struct pmc_mdep *md); >> >> /* >> * Kernel tunables and sysctl(8) interface. >> */ >> >> -SYSCTL_NODE(_kern, OID_AUTO, hwpmc, CTLFLAG_RW, 0, "HWPMC parameters"); >> +SYSCTL_DECL(_kern_hwpmc); >> >> static int pmc_callchaindepth = PMC_CALLCHAIN_DEPTH; >> TUNABLE_INT(PMC_SYSCTL_NAME_PREFIX "callchaindepth", &pmc_callchaindepth); >> _at__at_ -1833,7 +1839,9 _at__at_ const char *pmc_hooknames[] = { >> "KLDUNLOAD", >> "MMAP", >> "MUNMAP", >> - "CALLCHAIN" >> + "CALLCHAIN-NMI", >> + "CALLCHAIN-SOFT", >> + "SOFTSAMPLING" >> }; >> #endif >> >> _at__at_ -1992,7 +2000,8 _at__at_ pmc_hook_handler(struct thread *td, int >> * lose the interrupt sample. >> */ >> CPU_CLR_ATOMIC(PCPU_GET(cpuid), &pmc_cpumask); >> - pmc_process_samples(PCPU_GET(cpuid)); >> + pmc_process_samples(PCPU_GET(cpuid), PMC_HR); >> + pmc_process_samples(PCPU_GET(cpuid), PMC_SR); >> break; >> >> >> _at__at_ -2022,11 +2031,30 _at__at_ pmc_hook_handler(struct thread *td, int >> */ >> KASSERT(td == curthread, ("[pmc,%d] td != curthread", >> __LINE__)); >> - pmc_capture_user_callchain(PCPU_GET(cpuid), >> + >> + pmc_capture_user_callchain(PCPU_GET(cpuid), PMC_HR, >> (struct trapframe *) arg); >> td->td_pflags &= ~TDP_CALLCHAIN; >> break; >> >> + case PMC_FN_USER_CALLCHAIN_SOFT: >> + /* >> + * Record a call chain. >> + */ >> + KASSERT(td == curthread, ("[pmc,%d] td != curthread", >> + __LINE__)); >> + pmc_capture_user_callchain(PCPU_GET(cpuid), PMC_SR, >> + (struct trapframe *) arg); >> + td->td_pflags &= ~TDP_CALLCHAIN; >> + break; >> + >> + case PMC_FN_SOFT_SAMPLING: >> + /* >> + * Call soft PMC sampling intr. >> + */ >> + pmc_soft_intr((struct pmckern_soft *) arg); >> + break; >> + >> default: >> #ifdef DEBUG >> KASSERT(0, ("[pmc,%d] unknown hook %d\n", __LINE__, function)); >> _at__at_ -2221,18 +2249,17 _at__at_ pmc_destroy_pmc_descriptor(struct pmc *p >> static void >> pmc_wait_for_pmc_idle(struct pmc *pm) >> { >> -#ifdef DEBUG >> +#ifdef DEBUG >> volatile int maxloop; >> >> maxloop = 100 * pmc_cpu_max(); >> #endif >> - >> /* >> * Loop (with a forced context switch) till the PMC's runcount >> * comes down to zero. >> */ >> while (atomic_load_acq_32(&pm->pm_runcount) > 0) { >> -#ifdef DEBUG >> +#ifdef DEBUG >> maxloop--; >> KASSERT(maxloop > 0, >> ("[pmc,%d] (ri%d, rc%d) waiting too long for " >> _at__at_ -2972,6 +2999,53 _at__at_ pmc_syscall_handler(struct thread *td, v >> } >> break; >> >> + /* >> + * Retrieve soft events list. >> + */ >> + case PMC_OP_GETDYNEVENTINFO: >> + { >> + enum pmc_class cl; >> + enum pmc_event ev; >> + struct pmc_op_getdyneventinfo *gei; >> + struct pmc_dyn_event_descr dev; >> + struct pmc_soft *ps; >> + uint32_t nevent; >> + >> + sx_assert(&pmc_sx, SX_LOCKED); >> + >> + gei = (struct pmc_op_getdyneventinfo *) arg; >> + >> + if ((error = copyin(&gei->pm_class, &cl, sizeof(cl))) != 0) >> + break; >> + >> + /* Only SOFT class is dynamic. */ >> + if (cl != PMC_CLASS_SOFT) { >> + error = EINVAL; >> + break; >> + } >> + >> + nevent = 0; >> + for (ev = PMC_EV_SOFT_FIRST; ev <= PMC_EV_SOFT_LAST; ev++) { >> + ps = pmc_soft_ev_acquire(ev); >> + if (ps == NULL) >> + continue; >> + bcopy(&ps->ps_ev, &dev, sizeof(dev)); >> + pmc_soft_ev_release(ps); >> + >> + error = copyout(&dev, >> + &gei->pm_events[nevent], >> + sizeof(struct pmc_dyn_event_descr)); >> + if (error != 0) >> + break; >> + nevent++; >> + } >> + if (error != 0) >> + break; >> + >> + error = copyout(&nevent, &gei->pm_nevent, >> >> *** DIFF OUTPUT TRUNCATED AT 1000 LINES *** -- Monthadar Al Jaberi
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