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/*-
* Copyright (c) 2008 Joseph Koshy
* All rights reserved.
*
* 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: release/9.1.0/sys/dev/hwpmc/hwpmc_core.h 210621 2010-07-29 17:52:23Z gnn $
*/
#ifndef _DEV_HWPMC_CORE_H_
#define _DEV_HWPMC_CORE_H_ 1
/*
* Fixed-function PMCs.
*/
struct pmc_md_iaf_op_pmcallocate {
uint16_t pm_iaf_flags; /* additional flags */
};
#define IAF_OS 0x1
#define IAF_USR 0x2
#define IAF_ANY 0x4
#define IAF_PMI 0x8
/*
* Programmable PMCs.
*/
struct pmc_md_iap_op_pmcallocate {
uint32_t pm_iap_config;
uint32_t pm_iap_rsp;
};
#define IAP_EVSEL(C) ((C) & 0xFF)
#define IAP_UMASK(C) ((C) & 0xFF00)
#define IAP_USR (1 << 16)
#define IAP_OS (1 << 17)
#define IAP_EDGE (1 << 18)
#define IAP_INT (1 << 20)
#define IAP_ANY (1 << 21)
#define IAP_EN (1 << 22)
#define IAP_INV (1 << 23)
#define IAP_CMASK(C) (((C) & 0xFF) << 24)
#define IA_OFFCORE_RSP_MASK 0xF7FF
#ifdef _KERNEL
/*
* Fixed-function counters.
*/
#define IAF_MASK 0xF
#define IAF_COUNTER_MASK 0x0000ffffffffffff
#define IAF_CTR0 0x309
#define IAF_CTR1 0x30A
#define IAF_CTR2 0x30B
/*
* The IAF_CTRL MSR is laid out in the following way.
*
* Bit Position Use
* 63 - 12 Reserved (do not touch)
* 11 Ctr 2 PMI
* 10 Reserved (do not touch)
* 9-8 Ctr 2 Enable
* 7 Ctr 1 PMI
* 6 Reserved (do not touch)
* 5-4 Ctr 1 Enable
* 3 Ctr 0 PMI
* 2 Reserved (do not touch)
* 1-0 Ctr 0 Enable (3: All Levels, 2: User, 1: OS, 0: Disable)
*/
#define IAF_OFFSET 32
#define IAF_CTRL 0x38D
#define IAF_CTRL_MASK 0x0000000000000bbb
/*
* Programmable counters.
*/
#define IAP_PMC0 0x0C1
/*
* IAP_EVSEL(n) is laid out in the following way.
*
* Bit Position Use
* 63-31 Reserved (do not touch)
* 31-24 Counter Mask
* 23 Invert
* 22 Enable
* 21 Reserved (do not touch)
* 20 APIC Interrupt Enable
* 19 Pin Control
* 18 Edge Detect
* 17 OS
* 16 User
* 15-8 Unit Mask
* 7-0 Event Select
*/
#define IAP_EVSEL_MASK 0x00000000ffdfffff
#define IAP_EVSEL0 0x186
/*
* Simplified programming interface in Intel Performance Architecture
* v2 and later.
*/
#define IA_GLOBAL_STATUS 0x38E
#define IA_GLOBAL_CTRL 0x38F
/*
* IA_GLOBAL_CTRL is layed out in the following way.
*
* Bit Position Use
* 63-35 Reserved (do not touch)
* 34 IAF Counter 2 Enable
* 33 IAF Counter 1 Enable
* 32 IAF Counter 0 Enable
* 31-0 Depends on programmable counters
*/
/* The mask is only for the fixed porttion of the register. */
#define IAF_GLOBAL_CTRL_MASK 0x0000000700000000
/* The mask is only for the programmable porttion of the register. */
#define IAP_GLOBAL_CTRL_MASK 0x00000000ffffffff
/* The mask is for both the fixed and programmable porttions of the register. */
#define IA_GLOBAL_CTRL_MASK 0x00000007ffffffff
#define IA_GLOBAL_OVF_CTRL 0x390
#define IA_GLOBAL_STATUS_FLAG_CONDCHG (1ULL << 63)
#define IA_GLOBAL_STATUS_FLAG_OVFBUF (1ULL << 62)
/*
* Offcore response configuration.
*/
#define IA_OFFCORE_RSP0 0x1A6
#define IA_OFFCORE_RSP1 0x1A7
struct pmc_md_iaf_pmc {
uint64_t pm_iaf_ctrl;
};
struct pmc_md_iap_pmc {
uint32_t pm_iap_evsel;
uint32_t pm_iap_rsp;
};
/*
* Prototypes.
*/
int pmc_core_initialize(struct pmc_mdep *_md, int _maxcpu);
void pmc_core_finalize(struct pmc_mdep *_md);
void pmc_core_mark_started(int _cpu, int _pmc);
int pmc_iaf_initialize(struct pmc_mdep *_md, int _maxcpu, int _npmc, int _width);
void pmc_iaf_finalize(struct pmc_mdep *_md);
int pmc_iap_initialize(struct pmc_mdep *_md, int _maxcpu, int _npmc, int _width,
int _flags);
void pmc_iap_finalize(struct pmc_mdep *_md);
#endif /* _KERNEL */
#endif /* _DEV_HWPMC_CORE_H */