1 /*- 2 * Copyright (c) 2003-2005 Joseph Koshy 3 * Copyright (c) 2007 The FreeBSD Foundation 4 * All rights reserved. 5 * 6 * Portions of this software were developed by A. Joseph Koshy under 7 * sponsorship from the FreeBSD Foundation and Google, Inc. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 * $FreeBSD$ 31 */ 32 33 #ifndef _MACHINE_PMC_MDEP_H 34 #define _MACHINE_PMC_MDEP_H 1 35 36 /* 37 * On the i386 platform we support the following PMCs. 38 * 39 * K7 AMD Athlon XP/MP and other 32 bit processors. 40 * K8 AMD Athlon64 and Opteron PMCs in 32 bit mode. 41 * PIV Intel P4/HTT and P4/EMT64 42 * PPRO Intel Pentium Pro, Pentium-II, Pentium-III, Celeron and 43 * Pentium-M processors 44 * PENTIUM Intel Pentium MMX. 45 */ 46 47 #include <dev/hwpmc/hwpmc_amd.h> /* K7 and K8 */ 48 #include <dev/hwpmc/hwpmc_piv.h> 49 #include <dev/hwpmc/hwpmc_ppro.h> 50 #include <dev/hwpmc/hwpmc_pentium.h> 51 52 /* 53 * Architecture specific extensions to <sys/pmc.h> structures. 54 */ 55 56 union pmc_md_op_pmcallocate { 57 struct pmc_md_amd_op_pmcallocate pm_amd; 58 struct pmc_md_ppro_op_pmcallocate pm_ppro; 59 struct pmc_md_pentium_op_pmcallocate pm_pentium; 60 struct pmc_md_p4_op_pmcallocate pm_p4; 61 uint64_t __pad[4]; 62 }; 63 64 /* Logging */ 65 #define PMCLOG_READADDR PMCLOG_READ32 66 #define PMCLOG_EMITADDR PMCLOG_EMIT32 67 68 #ifdef _KERNEL 69 70 /* MD extension for 'struct pmc' */ 71 union pmc_md_pmc { 72 struct pmc_md_amd_pmc pm_amd; 73 struct pmc_md_ppro_pmc pm_ppro; 74 struct pmc_md_pentium_pmc pm_pentium; 75 struct pmc_md_p4_pmc pm_p4; 76 }; 77 78 struct pmc; 79 80 #define PMC_TRAPFRAME_TO_PC(TF) ((TF)->tf_eip) 81 #define PMC_TRAPFRAME_TO_FP(TF) ((TF)->tf_ebp) 82 #define PMC_TRAPFRAME_TO_SP(TF) ((TF)->tf_esp) 83 84 #define PMC_IN_KERNEL_STACK(S,START,END) \ 85 ((S) >= (START) && (S) < (END)) 86 #define PMC_IN_KERNEL(va) (((va) >= USRSTACK) && \ 87 ((va) < VM_MAX_KERNEL_ADDRESS)) 88 89 #define PMC_IN_USERSPACE(va) ((va) <= VM_MAXUSER_ADDRESS) 90 91 #define PMC_IN_TRAP_HANDLER(PC) \ 92 ((PC) >= (uintptr_t) start_exceptions && \ 93 (PC) < (uintptr_t) end_exceptions) 94 95 #define PMC_AT_FUNCTION_PROLOGUE_PUSH_BP(I) \ 96 (((I) & 0xffffffff) == 0xe5894855) /* pushq %rbp; movq %rsp,%rbp */ 97 #define PMC_AT_FUNCTION_PROLOGUE_MOV_SP_BP(I) \ 98 (((I) & 0x00ffffff) == 0x00e58948) /* movq %rsp,%rbp */ 99 #define PMC_AT_FUNCTION_EPILOGUE_RET(I) \ 100 (((I) & 0xFF) == 0xC3) /* ret */ 101 102 /* 103 * Prototypes 104 */ 105 106 void start_exceptions(void), end_exceptions(void); 107 void pmc_x86_lapic_enable_pmc_interrupt(void); 108 109 #endif /* _KERNEL */ 110 #endif /* _MACHINE_PMC_MDEP_H */ 111