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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2013 Justin Hibbits
* 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.
*
* $FreeBSD$
*/
#ifndef _DEV_HWPMC_POWERPC_H_
#define _DEV_HWPMC_POWERPC_H_ 1
#ifdef _KERNEL
#define POWERPC_PMC_CAPS (PMC_CAP_INTERRUPT | PMC_CAP_USER | \
PMC_CAP_SYSTEM | PMC_CAP_EDGE | \
PMC_CAP_THRESHOLD | PMC_CAP_READ | \
PMC_CAP_WRITE | PMC_CAP_INVERT | \
PMC_CAP_QUALIFIER)
#define POWERPC_PMC_KERNEL_ENABLE (0x1 << 30)
#define POWERPC_PMC_USER_ENABLE (0x1 << 31)
#define POWERPC_PMC_ENABLE (POWERPC_PMC_KERNEL_ENABLE | POWERPC_PMC_USER_ENABLE)
#define POWERPC_RELOAD_COUNT_TO_PERFCTR_VALUE(V) (0x80000000-(V))
#define POWERPC_PERFCTR_VALUE_TO_RELOAD_COUNT(P) (0x80000000-(P))
#define POWERPC_MAX_PMC_VALUE 0x7fffffffUL
#define POWERPC_PMC_HAS_OVERFLOWED(n) (powerpc_pmcn_read(n) & (0x1 << 31))
/*
* PMC value is used with OVERFLOWCNT to simulate a 64-bit counter to the
* machine independent part of hwpmc.
*/
#define PPC_OVERFLOWCNT(pm) (pm)->pm_md.pm_powerpc.pm_powerpc_overflowcnt
#define PPC_OVERFLOWCNT_MAX 0x200000000UL
struct powerpc_cpu {
struct pmc_hw *pc_ppcpmcs;
enum pmc_class pc_class;
};
struct pmc_ppc_event {
enum pmc_event pe_event;
uint32_t pe_flags;
#define PMC_FLAG_PMC1 0x01
#define PMC_FLAG_PMC2 0x02
#define PMC_FLAG_PMC3 0x04
#define PMC_FLAG_PMC4 0x08
#define PMC_FLAG_PMC5 0x10
#define PMC_FLAG_PMC6 0x20
#define PMC_FLAG_PMC7 0x40
#define PMC_FLAG_PMC8 0x80
uint32_t pe_code;
};
extern struct powerpc_cpu **powerpc_pcpu;
extern struct pmc_ppc_event *ppc_event_codes;
extern size_t ppc_event_codes_size;
extern int ppc_event_first;
extern int ppc_event_last;
extern int ppc_max_pmcs;
extern void (*powerpc_set_pmc)(int cpu, int ri, int config);
extern pmc_value_t (*powerpc_pmcn_read)(unsigned int pmc);
extern void (*powerpc_pmcn_write)(unsigned int pmc, uint32_t val);
extern void (*powerpc_resume_pmc)(bool ie);
int pmc_e500_initialize(struct pmc_mdep *pmc_mdep);
int pmc_mpc7xxx_initialize(struct pmc_mdep *pmc_mdep);
int pmc_ppc970_initialize(struct pmc_mdep *pmc_mdep);
int pmc_power8_initialize(struct pmc_mdep *pmc_mdep);
int powerpc_describe(int cpu, int ri, struct pmc_info *pi, struct pmc **ppmc);
int powerpc_get_config(int cpu, int ri, struct pmc **ppm);
int powerpc_pcpu_init(struct pmc_mdep *md, int cpu);
int powerpc_pcpu_fini(struct pmc_mdep *md, int cpu);
int powerpc_allocate_pmc(int cpu, int ri, struct pmc *pm,
const struct pmc_op_pmcallocate *a);
int powerpc_release_pmc(int cpu, int ri, struct pmc *pmc);
int powerpc_start_pmc(int cpu, int ri);
int powerpc_stop_pmc(int cpu, int ri);
int powerpc_config_pmc(int cpu, int ri, struct pmc *pm);
pmc_value_t powerpc_pmcn_read_default(unsigned int pmc);
void powerpc_pmcn_write_default(unsigned int pmc, uint32_t val);
int powerpc_read_pmc(int cpu, int ri, pmc_value_t *v);
int powerpc_write_pmc(int cpu, int ri, pmc_value_t v);
int powerpc_pmc_intr(struct trapframe *tf);
#endif /* _KERNEL */
#endif /* _DEV_HWPMC_POWERPC_H_ */
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