Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/hwpmc/hwpmc_powerpc.h
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1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2013 Justin Hibbits 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26 * SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 #ifndef _DEV_HWPMC_POWERPC_H_ 32 #define _DEV_HWPMC_POWERPC_H_ 1 33 34 #ifdef _KERNEL 35 36 #define POWERPC_PMC_CAPS (PMC_CAP_INTERRUPT | PMC_CAP_USER | \ 37 PMC_CAP_SYSTEM | PMC_CAP_EDGE | \ 38 PMC_CAP_THRESHOLD | PMC_CAP_READ | \ 39 PMC_CAP_WRITE | PMC_CAP_INVERT | \ 40 PMC_CAP_QUALIFIER) 41 42 #define POWERPC_PMC_KERNEL_ENABLE (0x1 << 30) 43 #define POWERPC_PMC_USER_ENABLE (0x1 << 31) 44 45 #define POWERPC_PMC_ENABLE (POWERPC_PMC_KERNEL_ENABLE | POWERPC_PMC_USER_ENABLE) 46 #define POWERPC_RELOAD_COUNT_TO_PERFCTR_VALUE(V) (0x80000000-(V)) 47 #define POWERPC_PERFCTR_VALUE_TO_RELOAD_COUNT(P) (0x80000000-(P)) 48 49 #define POWERPC_MAX_PMC_VALUE 0x7fffffffUL 50 51 #define POWERPC_PMC_HAS_OVERFLOWED(n) (powerpc_pmcn_read(n) & (0x1 << 31)) 52 53 /* 54 * PMC value is used with OVERFLOWCNT to simulate a 64-bit counter to the 55 * machine independent part of hwpmc. 56 */ 57 #define PPC_OVERFLOWCNT(pm) (pm)->pm_md.pm_powerpc.pm_powerpc_overflowcnt 58 #define PPC_OVERFLOWCNT_MAX 0x200000000UL 59 60 struct powerpc_cpu { 61 enum pmc_class pc_class; 62 struct pmc_hw pc_ppcpmcs[]; 63 }; 64 65 struct pmc_ppc_event { 66 enum pmc_event pe_event; 67 uint32_t pe_flags; 68 #define PMC_FLAG_PMC1 0x01 69 #define PMC_FLAG_PMC2 0x02 70 #define PMC_FLAG_PMC3 0x04 71 #define PMC_FLAG_PMC4 0x08 72 #define PMC_FLAG_PMC5 0x10 73 #define PMC_FLAG_PMC6 0x20 74 #define PMC_FLAG_PMC7 0x40 75 #define PMC_FLAG_PMC8 0x80 76 uint32_t pe_code; 77 }; 78 79 extern struct powerpc_cpu **powerpc_pcpu; 80 extern struct pmc_ppc_event *ppc_event_codes; 81 extern size_t ppc_event_codes_size; 82 extern int ppc_event_first; 83 extern int ppc_event_last; 84 extern int ppc_max_pmcs; 85 extern enum pmc_class ppc_class; 86 87 extern void (*powerpc_set_pmc)(int cpu, int ri, int config); 88 extern pmc_value_t (*powerpc_pmcn_read)(unsigned int pmc); 89 extern void (*powerpc_pmcn_write)(unsigned int pmc, uint32_t val); 90 extern void (*powerpc_resume_pmc)(bool ie); 91 92 int pmc_e500_initialize(struct pmc_mdep *pmc_mdep); 93 int pmc_mpc7xxx_initialize(struct pmc_mdep *pmc_mdep); 94 int pmc_ppc970_initialize(struct pmc_mdep *pmc_mdep); 95 int pmc_power8_initialize(struct pmc_mdep *pmc_mdep); 96 97 int powerpc_describe(int cpu, int ri, struct pmc_info *pi, struct pmc **ppmc); 98 int powerpc_get_config(int cpu, int ri, struct pmc **ppm); 99 int powerpc_pcpu_init(struct pmc_mdep *md, int cpu); 100 int powerpc_pcpu_fini(struct pmc_mdep *md, int cpu); 101 int powerpc_allocate_pmc(int cpu, int ri, struct pmc *pm, 102 const struct pmc_op_pmcallocate *a); 103 int powerpc_release_pmc(int cpu, int ri, struct pmc *pmc); 104 int powerpc_start_pmc(int cpu, int ri); 105 int powerpc_stop_pmc(int cpu, int ri); 106 int powerpc_config_pmc(int cpu, int ri, struct pmc *pm); 107 pmc_value_t powerpc_pmcn_read_default(unsigned int pmc); 108 void powerpc_pmcn_write_default(unsigned int pmc, uint32_t val); 109 int powerpc_read_pmc(int cpu, int ri, pmc_value_t *v); 110 int powerpc_write_pmc(int cpu, int ri, pmc_value_t v); 111 int powerpc_pmc_intr(struct trapframe *tf); 112 113 #endif /* _KERNEL */ 114 115 #endif /* _DEV_HWPMC_POWERPC_H_ */
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