/* * Copyright 1996 Massachusetts Institute of Technology * * Permission to use, copy, modify, and distribute this software and * its documentation for any purpose and without fee is hereby * granted, provided that both the above copyright notice and this * permission notice appear in all copies, that both the above * copyright notice and this permission notice appear in all * supporting documentation, and that the name of M.I.T. not be used * in advertising or publicity pertaining to distribution of the * software without specific, written prior permission. M.I.T. makes * no representations about the suitability of this software for any * purpose. It is provided "as is" without express or implied * warranty. * * THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS * ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE, * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT * SHALL M.I.T. 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. * * $Id: perfmon.h,v 1.4 1997/02/22 09:34:57 peter Exp $ */ /* * Interface to performance-monitoring counters for Intel Pentium and * Pentium Pro CPUs. */ #ifndef _MACHINE_PERFMON_H_ #define _MACHINE_PERFMON_H_ #ifndef KERNEL #include #endif #include #define NPMC 2 #define PMIOSETUP _IOW('5', 1, struct pmc) #define PMIOGET _IOWR('5', 7, struct pmc) #define PMIOSTART _IOW('5', 2, int) #define PMIOSTOP _IOW('5', 3, int) #define PMIOREAD _IOWR('5', 4, struct pmc_data) #define PMIORESET _IOW('5', 5, int) #define PMIOTSTAMP _IOR('5', 6, struct pmc_tstamp) struct pmc { int pmc_num; union { struct { unsigned char pmcus_event; unsigned char pmcus_unit; unsigned char pmcus_flags; unsigned char pmcus_mask; } pmcu_s; unsigned int pmcu_val; } pmc_pmcu; }; #define PMC_ALL (-1) #define pmc_event pmc_pmcu.pmcu_s.pmcus_event #define pmc_unit pmc_pmcu.pmcu_s.pmcus_unit #define pmc_flags pmc_pmcu.pmcu_s.pmcus_flags #define pmc_mask pmc_pmcu.pmcu_s.pmcus_mask #define pmc_val pmc_pmcu.pmcu_val #define PMCF_USR 0x01 /* count events in user mode */ #define PMCF_OS 0x02 /* count events in kernel mode */ #define PMCF_E 0x04 /* use edge-detection mode */ #define PMCF_PC 0x08 /* PMx output pin control */ #define PMCF_INT 0x10 /* APIC interrupt enable (do not use) */ #define PMCF_EN 0x40 /* enable counters */ #define PMCF_INV 0x80 /* invert counter mask comparison */ #define PMCF_SYS_FLAGS (PMCF_INT | PMCF_EN) /* user cannot set */ struct pmc_data { int pmcd_num; quad_t pmcd_value; }; struct pmc_tstamp { int pmct_rate; quad_t pmct_value; }; #ifndef KERNEL #define _PATH_PERFMON "/dev/perfmon" #else /* * Intra-kernel interface to performance monitoring counters */ void perfmon_init __P((void)); int perfmon_avail __P((void)); int perfmon_setup __P((int, unsigned int)); int perfmon_get __P((int, unsigned int *)); int perfmon_fini __P((int)); int perfmon_start __P((int)); int perfmon_stop __P((int)); int perfmon_read __P((int, quad_t *)); int perfmon_reset __P((int)); #endif /* KERNEL */ /* * Pentium Pro performance counters, from Appendix B. */ /* Data Cache Unit */ #define PMC6_DATA_MEM_REFS 0x43 #define PMC6_DCU_LINES_IN 0x45 #define PMC6_DCU_M_LINES_IN 0x46 #define PMC6_DCU_M_LINES_OUT 0x47 #define PMC6_DCU_MISS_OUTSTANDING 0x48 /* Instruction Fetch Unit */ #define PMC6_IFU_IFETCH 0x80 #define PMC6_IFU_IFETCH_MISS 0x81 #define PMC6_ITLB_MISS 0x85 #define PMC6_IFU_MEM_STALL 0x86 #define PMC6_ILD_STALL 0x87 /* L2 Cache */ #define PMC6_L2_IFETCH 0x28 /* MESI */ #define PMC6_L2_LD 0x29 /* MESI */ #define PMC6_L2_ST 0x2a /* MESI */ #define PMC6_L2_LINES_IN 0x24 #define PMC6_L2_LINES_OUT 0x26 #define PMC6_L2_M_LINES_INM 0x25 #define PMC6_L2_M_LINES_OUTM 0x27 #define PMC6_L2_RQSTS 0x2e /* MESI */ #define PMC6_L2_ADS 0x21 #define PMC6_L2_DBUS_BUSY 0x22 #define PMC6_L2_DBUS_BUSY_RD 0x23 /* External Bus Logic */ #define PMC6_BUS_DRDY_CLOCKS 0x62 #define PMC6_BUS_LOCK_CLOCKS 0x63 #define PMC6_BUS_REQ_OUTSTANDING 0x60 #define PMC6_BUS_TRAN_BRD 0x65 #define PMC6_BUS_TRAN_RFO 0x66 #define PMC6_BUS_TRAN_WB 0x67 #define PMC6_BUS_TRAN_IFETCH 0x68 #define PMC6_BUS_TRAN_INVAL 0x69 #define PMC6_BUS_TRAN_PWR 0x6a #define PMC6_BUS_TRAN_P 0x6b #define PMC6_BUS_TRAN_IO 0x6c #define PMC6_BUS_TRAN_DEF 0x6d #define PMC6_BUS_TRAN_BURST 0x6e #define PMC6_BUS_TRAN_ANY 0x70 #define PMC6_BUS_TRAN_MEM 0x6f #define PMC6_BUS_DATA_RCV 0x64 #define PMC6_BUS_BNR_DRV 0x61 #define PMC6_BUS_HIT_DRV 0x7a #define PMC6_BUS_HITM_DRV 0x7b #define PMC6_BUS_SNOOP_STALL 0x7e /* Floating Point Unit */ #define PMC6_FLOPS 0xc1 /* counter 0 only */ #define PMC6_FP_COMP_OPS_EXE 0x10 /* counter 0 only */ #define PMC6_FP_ASSIST 0x11 /* counter 1 only */ #define PMC6_MUL 0x12 /* counter 1 only */ #define PMC6_DIV 0x13 /* counter 1 only */ #define PMC6_CYCLES_DIV_BUSY 0x14 /* counter 0 only */ /* Memory Ordering */ #define PMC6_LD_BLOCKS 0x03 #define PMC6_SB_DRAINS 0x04 #define PMC6_MISALIGN_MEM_REF 0x05 /* Instruction Decoding and Retirement */ #define PMC6_INST_RETIRED 0xc0 #define PMC6_UOPS_RETIRED 0xc2 #define PMC6_INST_DECODER 0xd0 /* (sic) */ /* Interrupts */ #define PMC6_HW_INT_RX 0xc8 #define PMC6_CYCLES_INT_MASKED 0xc6 #define PMC6_CYCLES_INT_PENDING_AND_MASKED 0xc7 /* Branches */ #define PMC6_BR_INST_RETIRED 0xc4 #define PMC6_BR_MISS_PRED_RETIRED 0xc5 #define PMC6_BR_TAKEN_RETIRED 0xc9 #define PMC6_BR_MISS_PRED_TAKEN_RET 0xca #define PMC6_BR_INST_DECODED 0xe0 #define PMC6_BTB_MISSES 0xe2 #define PMC6_BR_BOGUS 0xe4 #define PMC6_BACLEARS 0xe6 /* Stalls */ #define PMC6_RESOURCE_STALLS 0xa2 #define PMC6_PARTIAL_RAT_STALLS 0xd2 /* Segment Register Loads */ #define PMC6_SEGMENT_REG_LOADS 0x06 /* Clocks */ #define PMC6_CPU_CLK_UNHALTED 0x79 /* * Pentium Performance Counters * This list comes from the Harvard people, not Intel. */ #define PMC5_DATA_READ 0 #define PMC5_DATA_WRITE 1 #define PMC5_DATA_TLB_MISS 2 #define PMC5_DATA_READ_MISS 3 #define PMC5_DATA_WRITE_MISS 4 #define PMC5_WRITE_M_E 5 #define PMC5_DATA_LINES_WBACK 6 #define PMC5_DATA_CACHE_SNOOP 7 #define PMC5_DATA_CACHE_SNOOP_HIT 8 #define PMC5_MEM_ACCESS_BOTH 9 #define PMC5_BANK_CONFLICTS 10 #define PMC5_MISALIGNED_DATA 11 #define PMC5_INST_READ 12 #define PMC5_INST_TLB_MISS 13 #define PMC5_INST_CACHE_MISS 14 #define PMC5_SEGMENT_REG_LOAD 15 #define PMC5_BRANCHES 18 #define PMC5_BTB_HITS 19 #define PMC5_BRANCH_TAKEN 20 #define PMC5_PIPELINE_FLUSH 21 #define PMC5_INST_EXECUTED 22 #define PMC5_INST_EXECUTED_V 23 #define PMC5_BUS_UTILIZATION 24 #define PMC5_WRITE_BACKUP_STALL 25 #define PMC5_DATA_READ_STALL 26 #define PMC5_WRITE_E_M_STALL 27 #define PMC5_LOCKED_BUS 28 #define PMC5_IO_CYCLE 29 #define PMC5_NONCACHE_MEMORY 30 #define PMC5_ADDR_GEN_INTERLOCK 31 #define PMC5_FLOPS 34 #define PMC5_BP0_MATCH 35 #define PMC5_BP1_MATCH 36 #define PMC5_BP2_MATCH 37 #define PMC5_BP3_MATCH 38 #define PMC5_HW_INTR 39 #define PMC5_DATA_RW 40 #define PMC5_DATA_RW_MISS 41 #endif /* !_MACHINE_PERFMON_H_ */