freebsd-dev/sys/amd64/include/pmc_mdep.h
Joseph Koshy d07f36b075 Kernel and hwpmc(4) support for callchain capture.
Sponsored by:	FreeBSD Foundation and Google Inc.
2007-12-07 08:20:17 +00:00

92 lines
3.0 KiB
C

/*-
* Copyright (c) 2003-2007 Joseph Koshy
* Copyright (c) 2007 The FreeBSD Foundation
* All rights reserved.
*
* Portions of this software were developed by A. Joseph Koshy under
* sponsorship from the FreeBSD Foundation and Google, Inc.
*
* 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.
*
* $FreeBSD$
*/
/* Machine dependent interfaces */
#ifndef _MACHINE_PMC_MDEP_H
#define _MACHINE_PMC_MDEP_H 1
#include <dev/hwpmc/hwpmc_amd.h>
#include <dev/hwpmc/hwpmc_piv.h>
union pmc_md_op_pmcallocate {
struct pmc_md_amd_op_pmcallocate pm_amd;
struct pmc_md_p4_op_pmcallocate pm_p4;
uint64_t __pad[4];
};
/* Logging */
#define PMCLOG_READADDR PMCLOG_READ64
#define PMCLOG_EMITADDR PMCLOG_EMIT64
#ifdef _KERNEL
union pmc_md_pmc {
struct pmc_md_amd_pmc pm_amd;
struct pmc_md_p4_pmc pm_p4;
};
struct pmc;
#define PMC_TRAPFRAME_TO_PC(TF) ((TF)->tf_rip)
#define PMC_TRAPFRAME_TO_FP(TF) ((TF)->tf_rbp)
#define PMC_TRAPFRAME_TO_SP(TF) ((TF)->tf_rsp)
#define PMC_AT_FUNCTION_PROLOGUE_PUSH_BP(I) \
(((I) & 0xffffffff) == 0xe5894855) /* pushq %rbp; movq %rsp,%rbp */
#define PMC_AT_FUNCTION_PROLOGUE_MOV_SP_BP(I) \
(((I) & 0x00ffffff) == 0x00e58948) /* movq %rsp,%rbp */
#define PMC_AT_FUNCTION_EPILOGUE_RET(I) \
(((I) & 0xFF) == 0xC3) /* ret */
#define PMC_IN_TRAP_HANDLER(PC) \
((PC) >= (uintptr_t) start_exceptions && \
(PC) < (uintptr_t) end_exceptions)
#define PMC_IN_KERNEL_STACK(S,START,END) \
((S) >= (START) && (S) < (END))
#define PMC_IN_KERNEL(va) (((va) >= DMAP_MIN_ADDRESS && \
(va) < DMAP_MAX_ADDRESS) || ((va) >= KERNBASE && \
(va) < VM_MAX_KERNEL_ADDRESS))
#define PMC_IN_USERSPACE(va) ((va) <= VM_MAXUSER_ADDRESS)
/*
* Prototypes
*/
void start_exceptions(void), end_exceptions(void);
void pmc_x86_lapic_enable_pmc_interrupt(void);
#endif
#endif /* _MACHINE_PMC_MDEP_H */