pmc_mdep.h revision 285041
1219820Sjeff/*- 2219820Sjeff * Copyright (c) 2003-2005,2008 Joseph Koshy 3219820Sjeff * Copyright (c) 2007 The FreeBSD Foundation 4219820Sjeff * All rights reserved. 5219820Sjeff * 6219820Sjeff * Portions of this software were developed by A. Joseph Koshy under 7219820Sjeff * sponsorship from the FreeBSD Foundation and Google, Inc. 8219820Sjeff * 9219820Sjeff * Redistribution and use in source and binary forms, with or without 10219820Sjeff * modification, are permitted provided that the following conditions 11219820Sjeff * are met: 12219820Sjeff * 1. Redistributions of source code must retain the above copyright 13219820Sjeff * notice, this list of conditions and the following disclaimer. 14219820Sjeff * 2. Redistributions in binary form must reproduce the above copyright 15219820Sjeff * notice, this list of conditions and the following disclaimer in the 16219820Sjeff * documentation and/or other materials provided with the distribution. 17219820Sjeff * 18219820Sjeff * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19219820Sjeff * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20219820Sjeff * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21219820Sjeff * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22219820Sjeff * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23219820Sjeff * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24219820Sjeff * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25219820Sjeff * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26219820Sjeff * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27219820Sjeff * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28219820Sjeff * SUCH DAMAGE. 29219820Sjeff * 30219820Sjeff * $FreeBSD: head/sys/i386/include/pmc_mdep.h 285041 2015-07-02 14:37:21Z kib $ 31219820Sjeff */ 32219820Sjeff 33219820Sjeff#ifndef _MACHINE_PMC_MDEP_H 34219820Sjeff#define _MACHINE_PMC_MDEP_H 1 35219820Sjeff 36219820Sjeff#ifdef _KERNEL 37219820Sjeffstruct pmc_mdep; 38219820Sjeff#endif 39219820Sjeff 40219820Sjeff/* 41219820Sjeff * On the i386 platform we support the following PMCs. 42219820Sjeff * 43219820Sjeff * TSC The timestamp counter 44219820Sjeff * K7 AMD Athlon XP/MP and other 32 bit processors. 45219820Sjeff * K8 AMD Athlon64 and Opteron PMCs in 32 bit mode. 46219820Sjeff * PIV Intel P4/HTT and P4/EMT64 47219820Sjeff * PPRO Intel Pentium Pro, Pentium-II, Pentium-III, Celeron and 48219820Sjeff * Pentium-M processors 49219820Sjeff * PENTIUM Intel Pentium MMX. 50219820Sjeff * IAP Intel Core/Core2/Atom programmable PMCs. 51219820Sjeff * IAF Intel fixed-function PMCs. 52219820Sjeff * UCP Intel Uncore programmable PMCs. 53219820Sjeff * UCF Intel Uncore fixed-function PMCs. 54219820Sjeff */ 55219820Sjeff 56219820Sjeff#include <dev/hwpmc/hwpmc_amd.h> /* K7 and K8 */ 57219820Sjeff#include <dev/hwpmc/hwpmc_core.h> 58219820Sjeff#include <dev/hwpmc/hwpmc_piv.h> 59219820Sjeff#include <dev/hwpmc/hwpmc_ppro.h> 60219820Sjeff#include <dev/hwpmc/hwpmc_pentium.h> 61219820Sjeff#include <dev/hwpmc/hwpmc_tsc.h> 62219820Sjeff#include <dev/hwpmc/hwpmc_uncore.h> 63219820Sjeff 64219820Sjeff/* 65219820Sjeff * Intel processors implementing V2 and later of the Intel performance 66219820Sjeff * measurement architecture have PMCs of the following classes: TSC, 67219820Sjeff * IAF, IAP, UCF and UCP. 68219820Sjeff */ 69219820Sjeff#define PMC_MDEP_CLASS_INDEX_TSC 1 70219820Sjeff#define PMC_MDEP_CLASS_INDEX_K7 2 71219820Sjeff#define PMC_MDEP_CLASS_INDEX_K8 2 72219820Sjeff#define PMC_MDEP_CLASS_INDEX_P4 2 73219820Sjeff#define PMC_MDEP_CLASS_INDEX_P5 2 74219820Sjeff#define PMC_MDEP_CLASS_INDEX_P6 2 75219820Sjeff#define PMC_MDEP_CLASS_INDEX_IAP 2 76219820Sjeff#define PMC_MDEP_CLASS_INDEX_IAF 3 77219820Sjeff#define PMC_MDEP_CLASS_INDEX_UCP 4 78219820Sjeff#define PMC_MDEP_CLASS_INDEX_UCF 5 79219820Sjeff 80219820Sjeff/* 81219820Sjeff * Architecture specific extensions to <sys/pmc.h> structures. 82219820Sjeff */ 83219820Sjeff 84219820Sjeffunion pmc_md_op_pmcallocate { 85219820Sjeff struct pmc_md_amd_op_pmcallocate pm_amd; 86219820Sjeff struct pmc_md_iaf_op_pmcallocate pm_iaf; 87219820Sjeff struct pmc_md_iap_op_pmcallocate pm_iap; 88219820Sjeff struct pmc_md_ucf_op_pmcallocate pm_ucf; 89219820Sjeff struct pmc_md_ucp_op_pmcallocate pm_ucp; 90219820Sjeff struct pmc_md_p4_op_pmcallocate pm_p4; 91219820Sjeff struct pmc_md_pentium_op_pmcallocate pm_pentium; 92219820Sjeff struct pmc_md_ppro_op_pmcallocate pm_ppro; 93219820Sjeff uint64_t __pad[4]; 94219820Sjeff}; 95219820Sjeff 96219820Sjeff/* Logging */ 97219820Sjeff#define PMCLOG_READADDR PMCLOG_READ32 98219820Sjeff#define PMCLOG_EMITADDR PMCLOG_EMIT32 99219820Sjeff 100219820Sjeff#ifdef _KERNEL 101219820Sjeff 102219820Sjeff/* MD extension for 'struct pmc' */ 103219820Sjeffunion pmc_md_pmc { 104219820Sjeff struct pmc_md_amd_pmc pm_amd; 105219820Sjeff struct pmc_md_iaf_pmc pm_iaf; 106219820Sjeff struct pmc_md_iap_pmc pm_iap; 107219820Sjeff struct pmc_md_ucf_pmc pm_ucf; 108219820Sjeff struct pmc_md_ucp_pmc pm_ucp; 109219820Sjeff struct pmc_md_p4_pmc pm_p4; 110219820Sjeff struct pmc_md_pentium_pmc pm_pentium; 111219820Sjeff struct pmc_md_ppro_pmc pm_ppro; 112219820Sjeff}; 113219820Sjeff 114219820Sjeffstruct pmc; 115219820Sjeffstruct pmc_mdep; 116219820Sjeff 117219820Sjeff#define PMC_TRAPFRAME_TO_PC(TF) ((TF)->tf_eip) 118219820Sjeff#define PMC_TRAPFRAME_TO_FP(TF) ((TF)->tf_ebp) 119219820Sjeff 120219820Sjeff/* 121219820Sjeff * The layout of the stack frame on entry into the NMI handler depends on 122219820Sjeff * whether a privilege level change (and consequent stack switch) was 123219820Sjeff * required for entry. 124219820Sjeff * 125219820Sjeff * When processing an interrupt when in user mode, the processor switches 126219820Sjeff * stacks, and saves the user mode stack pointer on the kernel stack. The 127219820Sjeff * user mode stack pointer is then available to the interrupt handler 128219820Sjeff * at frame->tf_esp. 129219820Sjeff * 130219820Sjeff * When processing an interrupt while in kernel mode, the processor 131219820Sjeff * continues to use the existing (kernel) stack. Therefore we determine 132219820Sjeff * the stack pointer for the interrupted kernel procedure by adding an 133219820Sjeff * offset to the current frame pointer. 134219820Sjeff */ 135219820Sjeff 136219820Sjeff#define PMC_TRAPFRAME_TO_USER_SP(TF) ((TF)->tf_esp) 137219820Sjeff#define PMC_TRAPFRAME_TO_KERNEL_SP(TF) ((uintptr_t) &((TF)->tf_esp)) 138219820Sjeff 139219820Sjeff#define PMC_IN_KERNEL_STACK(S,START,END) \ 140219820Sjeff ((S) >= (START) && (S) < (END)) 141219820Sjeff#define PMC_IN_KERNEL(va) INKERNEL(va) 142219820Sjeff 143219820Sjeff#define PMC_IN_USERSPACE(va) ((va) <= VM_MAXUSER_ADDRESS) 144219820Sjeff 145219820Sjeff#define PMC_IN_TRAP_HANDLER(PC) \ 146219820Sjeff ((PC) >= (uintptr_t) start_exceptions && \ 147219820Sjeff (PC) < (uintptr_t) end_exceptions) 148219820Sjeff 149219820Sjeff#define PMC_AT_FUNCTION_PROLOGUE_PUSH_BP(I) \ 150219820Sjeff (((I) & 0x00ffffff) == 0xe58955) /* pushl %ebp; movl %esp,%ebp */ 151219820Sjeff#define PMC_AT_FUNCTION_PROLOGUE_MOV_SP_BP(I) \ 152219820Sjeff (((I) & 0x0000ffff) == 0xe589) /* movl %esp,%ebp */ 153219820Sjeff#define PMC_AT_FUNCTION_EPILOGUE_RET(I) \ 154219820Sjeff (((I) & 0xFF) == 0xC3) /* ret */ 155219820Sjeff 156219820Sjeff/* Build a fake kernel trapframe from current instruction pointer. */ 157219820Sjeff#define PMC_FAKE_TRAPFRAME(TF) \ 158219820Sjeff do { \ 159219820Sjeff (TF)->tf_cs = 0; (TF)->tf_eflags = 0; \ 160219820Sjeff __asm __volatile("movl %%ebp,%0" : "=r" ((TF)->tf_ebp)); \ 161219820Sjeff __asm __volatile("movl %%esp,%0" : "=r" ((TF)->tf_esp)); \ 162219820Sjeff __asm __volatile("call 1f \n\t1: pop %0" : "=r"((TF)->tf_eip)); \ 163219820Sjeff } while (0) 164219820Sjeff 165219820Sjeff/* 166219820Sjeff * Prototypes 167219820Sjeff */ 168219820Sjeff 169219820Sjeffvoid start_exceptions(void), end_exceptions(void); 170219820Sjeff 171219820Sjeffstruct pmc_mdep *pmc_amd_initialize(void); 172219820Sjeffvoid pmc_amd_finalize(struct pmc_mdep *_md); 173219820Sjeffstruct pmc_mdep *pmc_intel_initialize(void); 174219820Sjeffvoid pmc_intel_finalize(struct pmc_mdep *_md); 175219820Sjeff 176219820Sjeff#endif /* _KERNEL */ 177219820Sjeff#endif /* _MACHINE_PMC_MDEP_H */ 178219820Sjeff