pmc_mdep.h revision 302408
1266328Sian/*- 2266328Sian * Copyright (c) 2003-2005,2008 Joseph Koshy 3249997Swkoszek * Copyright (c) 2007 The FreeBSD Foundation 4266328Sian * All rights reserved. 5266328Sian * 6249997Swkoszek * Portions of this software were developed by A. Joseph Koshy under 7266328Sian * sponsorship from the FreeBSD Foundation and Google, Inc. 8249997Swkoszek * 9266328Sian * Redistribution and use in source and binary forms, with or without 10266328Sian * modification, are permitted provided that the following conditions 11266328Sian * are met: 12266328Sian * 1. Redistributions of source code must retain the above copyright 13249997Swkoszek * notice, this list of conditions and the following disclaimer. 14266328Sian * 2. Redistributions in binary form must reproduce the above copyright 15266328Sian * notice, this list of conditions and the following disclaimer in the 16266328Sian * documentation and/or other materials provided with the distribution. 17266328Sian * 18249997Swkoszek * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19266328Sian * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20249997Swkoszek * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21249997Swkoszek * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22249997Swkoszek * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23249997Swkoszek * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24249997Swkoszek * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25249997Swkoszek * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26249997Swkoszek * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27249997Swkoszek * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28266328Sian * SUCH DAMAGE. 29266328Sian * 30266328Sian * $FreeBSD: stable/11/sys/i386/include/pmc_mdep.h 285041 2015-07-02 14:37:21Z kib $ 31266328Sian */ 32266328Sian 33266328Sian#ifndef _MACHINE_PMC_MDEP_H 34266328Sian#define _MACHINE_PMC_MDEP_H 1 35249997Swkoszek 36249997Swkoszek#ifdef _KERNEL 37266328Sianstruct pmc_mdep; 38266328Sian#endif 39266328Sian 40266328Sian/* 41249997Swkoszek * On the i386 platform we support the following PMCs. 42249997Swkoszek * 43249997Swkoszek * TSC The timestamp counter 44266328Sian * K7 AMD Athlon XP/MP and other 32 bit processors. 45266328Sian * K8 AMD Athlon64 and Opteron PMCs in 32 bit mode. 46266331Sian * PIV Intel P4/HTT and P4/EMT64 47266328Sian * PPRO Intel Pentium Pro, Pentium-II, Pentium-III, Celeron and 48266328Sian * Pentium-M processors 49266328Sian * PENTIUM Intel Pentium MMX. 50266328Sian * IAP Intel Core/Core2/Atom programmable PMCs. 51266328Sian * IAF Intel fixed-function PMCs. 52266328Sian * UCP Intel Uncore programmable PMCs. 53266328Sian * UCF Intel Uncore fixed-function PMCs. 54266328Sian */ 55266328Sian 56266328Sian#include <dev/hwpmc/hwpmc_amd.h> /* K7 and K8 */ 57266331Sian#include <dev/hwpmc/hwpmc_core.h> 58266328Sian#include <dev/hwpmc/hwpmc_piv.h> 59266379Sian#include <dev/hwpmc/hwpmc_ppro.h> 60249997Swkoszek#include <dev/hwpmc/hwpmc_pentium.h> 61249997Swkoszek#include <dev/hwpmc/hwpmc_tsc.h> 62268813Simp#include <dev/hwpmc/hwpmc_uncore.h> 63249997Swkoszek 64249997Swkoszek/* 65249997Swkoszek * Intel processors implementing V2 and later of the Intel performance 66249997Swkoszek * measurement architecture have PMCs of the following classes: TSC, 67266328Sian * IAF, IAP, UCF and UCP. 68266328Sian */ 69266328Sian#define PMC_MDEP_CLASS_INDEX_TSC 1 70266328Sian#define PMC_MDEP_CLASS_INDEX_K7 2 71249997Swkoszek#define PMC_MDEP_CLASS_INDEX_K8 2 72249997Swkoszek#define PMC_MDEP_CLASS_INDEX_P4 2 73249997Swkoszek#define PMC_MDEP_CLASS_INDEX_P5 2 74249997Swkoszek#define PMC_MDEP_CLASS_INDEX_P6 2 75249997Swkoszek#define PMC_MDEP_CLASS_INDEX_IAP 2 76249997Swkoszek#define PMC_MDEP_CLASS_INDEX_IAF 3 77249997Swkoszek#define PMC_MDEP_CLASS_INDEX_UCP 4 78249997Swkoszek#define PMC_MDEP_CLASS_INDEX_UCF 5 79249997Swkoszek 80249997Swkoszek/* 81249997Swkoszek * Architecture specific extensions to <sys/pmc.h> structures. 82249997Swkoszek */ 83249997Swkoszek 84249997Swkoszekunion pmc_md_op_pmcallocate { 85249997Swkoszek struct pmc_md_amd_op_pmcallocate pm_amd; 86249997Swkoszek struct pmc_md_iaf_op_pmcallocate pm_iaf; 87249997Swkoszek struct pmc_md_iap_op_pmcallocate pm_iap; 88249997Swkoszek struct pmc_md_ucf_op_pmcallocate pm_ucf; 89249997Swkoszek struct pmc_md_ucp_op_pmcallocate pm_ucp; 90249997Swkoszek struct pmc_md_p4_op_pmcallocate pm_p4; 91249997Swkoszek struct pmc_md_pentium_op_pmcallocate pm_pentium; 92249997Swkoszek struct pmc_md_ppro_op_pmcallocate pm_ppro; 93249997Swkoszek uint64_t __pad[4]; 94249997Swkoszek}; 95249997Swkoszek 96249997Swkoszek/* Logging */ 97249997Swkoszek#define PMCLOG_READADDR PMCLOG_READ32 98249997Swkoszek#define PMCLOG_EMITADDR PMCLOG_EMIT32 99249997Swkoszek 100249997Swkoszek#ifdef _KERNEL 101249997Swkoszek 102249997Swkoszek/* MD extension for 'struct pmc' */ 103249997Swkoszekunion pmc_md_pmc { 104 struct pmc_md_amd_pmc pm_amd; 105 struct pmc_md_iaf_pmc pm_iaf; 106 struct pmc_md_iap_pmc pm_iap; 107 struct pmc_md_ucf_pmc pm_ucf; 108 struct pmc_md_ucp_pmc pm_ucp; 109 struct pmc_md_p4_pmc pm_p4; 110 struct pmc_md_pentium_pmc pm_pentium; 111 struct pmc_md_ppro_pmc pm_ppro; 112}; 113 114struct pmc; 115struct pmc_mdep; 116 117#define PMC_TRAPFRAME_TO_PC(TF) ((TF)->tf_eip) 118#define PMC_TRAPFRAME_TO_FP(TF) ((TF)->tf_ebp) 119 120/* 121 * The layout of the stack frame on entry into the NMI handler depends on 122 * whether a privilege level change (and consequent stack switch) was 123 * required for entry. 124 * 125 * When processing an interrupt when in user mode, the processor switches 126 * stacks, and saves the user mode stack pointer on the kernel stack. The 127 * user mode stack pointer is then available to the interrupt handler 128 * at frame->tf_esp. 129 * 130 * When processing an interrupt while in kernel mode, the processor 131 * continues to use the existing (kernel) stack. Therefore we determine 132 * the stack pointer for the interrupted kernel procedure by adding an 133 * offset to the current frame pointer. 134 */ 135 136#define PMC_TRAPFRAME_TO_USER_SP(TF) ((TF)->tf_esp) 137#define PMC_TRAPFRAME_TO_KERNEL_SP(TF) ((uintptr_t) &((TF)->tf_esp)) 138 139#define PMC_IN_KERNEL_STACK(S,START,END) \ 140 ((S) >= (START) && (S) < (END)) 141#define PMC_IN_KERNEL(va) INKERNEL(va) 142 143#define PMC_IN_USERSPACE(va) ((va) <= VM_MAXUSER_ADDRESS) 144 145#define PMC_IN_TRAP_HANDLER(PC) \ 146 ((PC) >= (uintptr_t) start_exceptions && \ 147 (PC) < (uintptr_t) end_exceptions) 148 149#define PMC_AT_FUNCTION_PROLOGUE_PUSH_BP(I) \ 150 (((I) & 0x00ffffff) == 0xe58955) /* pushl %ebp; movl %esp,%ebp */ 151#define PMC_AT_FUNCTION_PROLOGUE_MOV_SP_BP(I) \ 152 (((I) & 0x0000ffff) == 0xe589) /* movl %esp,%ebp */ 153#define PMC_AT_FUNCTION_EPILOGUE_RET(I) \ 154 (((I) & 0xFF) == 0xC3) /* ret */ 155 156/* Build a fake kernel trapframe from current instruction pointer. */ 157#define PMC_FAKE_TRAPFRAME(TF) \ 158 do { \ 159 (TF)->tf_cs = 0; (TF)->tf_eflags = 0; \ 160 __asm __volatile("movl %%ebp,%0" : "=r" ((TF)->tf_ebp)); \ 161 __asm __volatile("movl %%esp,%0" : "=r" ((TF)->tf_esp)); \ 162 __asm __volatile("call 1f \n\t1: pop %0" : "=r"((TF)->tf_eip)); \ 163 } while (0) 164 165/* 166 * Prototypes 167 */ 168 169void start_exceptions(void), end_exceptions(void); 170 171struct pmc_mdep *pmc_amd_initialize(void); 172void pmc_amd_finalize(struct pmc_mdep *_md); 173struct pmc_mdep *pmc_intel_initialize(void); 174void pmc_intel_finalize(struct pmc_mdep *_md); 175 176#endif /* _KERNEL */ 177#endif /* _MACHINE_PMC_MDEP_H */ 178