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libpmc.c (147219) libpmc.c (147759)
1/*-
2 * Copyright (c) 2003-2005 Joseph Koshy
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
1/*-
2 * Copyright (c) 2003-2005 Joseph Koshy
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <sys/cdefs.h>
28__FBSDID("$FreeBSD: head/lib/libpmc/libpmc.c 147219 2005-06-10 03:45:04Z jkoshy $");
28__FBSDID("$FreeBSD: head/lib/libpmc/libpmc.c 147759 2005-07-03 16:33:22Z jkoshy $");
29
30#include <sys/types.h>
31#include <sys/module.h>
32#include <sys/pmc.h>
33#include <sys/syscall.h>
34
35#include <ctype.h>
36#include <errno.h>

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42#include <strings.h>
43#include <unistd.h>
44
45/* Function prototypes */
46#if defined(__i386__)
47static int k7_allocate_pmc(enum pmc_event _pe, char *_ctrspec,
48 struct pmc_op_pmcallocate *_pmc_config);
49#endif
29
30#include <sys/types.h>
31#include <sys/module.h>
32#include <sys/pmc.h>
33#include <sys/syscall.h>
34
35#include <ctype.h>
36#include <errno.h>

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42#include <strings.h>
43#include <unistd.h>
44
45/* Function prototypes */
46#if defined(__i386__)
47static int k7_allocate_pmc(enum pmc_event _pe, char *_ctrspec,
48 struct pmc_op_pmcallocate *_pmc_config);
49#endif
50#if defined(__amd64__)
50#if defined(__amd64__) || defined(__i386__)
51static int k8_allocate_pmc(enum pmc_event _pe, char *_ctrspec,
52 struct pmc_op_pmcallocate *_pmc_config);
51static int k8_allocate_pmc(enum pmc_event _pe, char *_ctrspec,
52 struct pmc_op_pmcallocate *_pmc_config);
53#endif
54#if defined(__i386__)
55static int p4_allocate_pmc(enum pmc_event _pe, char *_ctrspec,
56 struct pmc_op_pmcallocate *_pmc_config);
53static int p4_allocate_pmc(enum pmc_event _pe, char *_ctrspec,
54 struct pmc_op_pmcallocate *_pmc_config);
55#endif
56#if defined(__i386__)
57static int p5_allocate_pmc(enum pmc_event _pe, char *_ctrspec,
58 struct pmc_op_pmcallocate *_pmc_config);
59static int p6_allocate_pmc(enum pmc_event _pe, char *_ctrspec,
60 struct pmc_op_pmcallocate *_pmc_config);
61#endif
62
63#define PMC_CALL(cmd, params) \
64 syscall(pmc_syscall, PMC_OP_##cmd, (params))

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149/* Event masks for events */
150struct pmc_masks {
151 const char *pm_name;
152 const uint32_t pm_value;
153};
154#define PMCMASK(N,V) { .pm_name = #N, .pm_value = (V) }
155#define NULLMASK PMCMASK(NULL,0)
156
57static int p5_allocate_pmc(enum pmc_event _pe, char *_ctrspec,
58 struct pmc_op_pmcallocate *_pmc_config);
59static int p6_allocate_pmc(enum pmc_event _pe, char *_ctrspec,
60 struct pmc_op_pmcallocate *_pmc_config);
61#endif
62
63#define PMC_CALL(cmd, params) \
64 syscall(pmc_syscall, PMC_OP_##cmd, (params))

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149/* Event masks for events */
150struct pmc_masks {
151 const char *pm_name;
152 const uint32_t pm_value;
153};
154#define PMCMASK(N,V) { .pm_name = #N, .pm_value = (V) }
155#define NULLMASK PMCMASK(NULL,0)
156
157#if defined(__i386__) || defined(__amd64__)
157#if defined(__amd64__) || defined(__i386__)
158static int
159pmc_parse_mask(const struct pmc_masks *pmask, char *p, uint32_t *evmask)
160{
161 const struct pmc_masks *pm;
162 char *q, *r;
163 int c;
164
165 if (pmask == NULL) /* no mask keywords */

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296 }
297
298 return 0;
299
300}
301
302#endif
303
158static int
159pmc_parse_mask(const struct pmc_masks *pmask, char *p, uint32_t *evmask)
160{
161 const struct pmc_masks *pm;
162 char *q, *r;
163 int c;
164
165 if (pmask == NULL) /* no mask keywords */

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296 }
297
298 return 0;
299
300}
301
302#endif
303
304#if defined(__amd64__)
304#if defined(__amd64__) || defined(__i386__)
305
306/*
307 * AMD K8 PMCs.
308 *
309 * These are very similar to AMD K7 PMCs, but support more kinds of
310 * events.
311 */
312

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665 pmc_config->pm_md.pm_amd.pm_amd_config =
666 AMD_PMC_TO_UNITMASK(evmask);
667
668 return 0;
669}
670
671#endif
672
305
306/*
307 * AMD K8 PMCs.
308 *
309 * These are very similar to AMD K7 PMCs, but support more kinds of
310 * events.
311 */
312

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665 pmc_config->pm_md.pm_amd.pm_amd_config =
666 AMD_PMC_TO_UNITMASK(evmask);
667
668 return 0;
669}
670
671#endif
672
673#if defined(__i386__)
673#if defined(__amd64__) || defined(__i386__)
674
675/*
676 * Intel P4 PMCs
677 */
678
679static struct pmc_event_alias p4_aliases[] = {
680 EV_ALIAS("branches", "p4-branch-retired,mask=mmtp+mmtm"),
681 EV_ALIAS("branch-mispredicts", "p4-mispred-branch-retired"),

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1278 }
1279
1280 pmc_config->pm_md.pm_p4.pm_p4_escrconfig =
1281 P4_ESCR_TO_EVENT_MASK(evmask);
1282
1283 return 0;
1284}
1285
674
675/*
676 * Intel P4 PMCs
677 */
678
679static struct pmc_event_alias p4_aliases[] = {
680 EV_ALIAS("branches", "p4-branch-retired,mask=mmtp+mmtm"),
681 EV_ALIAS("branch-mispredicts", "p4-mispred-branch-retired"),

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1278 }
1279
1280 pmc_config->pm_md.pm_p4.pm_p4_escrconfig =
1281 P4_ESCR_TO_EVENT_MASK(evmask);
1282
1283 return 0;
1284}
1285
1286#endif
1287
1288#if defined(__i386__)
1289
1286/*
1287 * Pentium style PMCs
1288 */
1289
1290static struct pmc_event_alias p5_aliases[] = {
1291 EV_ALIAS("cycles", "tsc"),
1292 EV_ALIAS(NULL, NULL)
1293};

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1945 break;
1946 case PMC_CPU_INTEL_P6: /* P6 ... Pentium M CPUs have */
1947 case PMC_CPU_INTEL_PII: /* similar PMCs. */
1948 case PMC_CPU_INTEL_PIII:
1949 case PMC_CPU_INTEL_PM:
1950 pmc_mdep_event_aliases = p6_aliases;
1951 pmc_mdep_allocate_pmc = p6_allocate_pmc;
1952 break;
1290/*
1291 * Pentium style PMCs
1292 */
1293
1294static struct pmc_event_alias p5_aliases[] = {
1295 EV_ALIAS("cycles", "tsc"),
1296 EV_ALIAS(NULL, NULL)
1297};

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1949 break;
1950 case PMC_CPU_INTEL_P6: /* P6 ... Pentium M CPUs have */
1951 case PMC_CPU_INTEL_PII: /* similar PMCs. */
1952 case PMC_CPU_INTEL_PIII:
1953 case PMC_CPU_INTEL_PM:
1954 pmc_mdep_event_aliases = p6_aliases;
1955 pmc_mdep_allocate_pmc = p6_allocate_pmc;
1956 break;
1957#endif
1958#if defined(__amd64__) || defined(__i386__)
1953 case PMC_CPU_INTEL_PIV:
1954 pmc_mdep_event_aliases = p4_aliases;
1955 pmc_mdep_allocate_pmc = p4_allocate_pmc;
1956 break;
1959 case PMC_CPU_INTEL_PIV:
1960 pmc_mdep_event_aliases = p4_aliases;
1961 pmc_mdep_allocate_pmc = p4_allocate_pmc;
1962 break;
1957#elif defined(__amd64__)
1958 case PMC_CPU_AMD_K8:
1959 pmc_mdep_event_aliases = k8_aliases;
1960 pmc_mdep_allocate_pmc = k8_allocate_pmc;
1961 break;
1962#endif
1963
1964 default:
1965 /*

--- 264 unchanged lines hidden --- 		1963 case PMC_CPU_AMD_K8:
1964 pmc_mdep_event_aliases = k8_aliases;
1965 pmc_mdep_allocate_pmc = k8_allocate_pmc;
1966 break;
1967#endif
1968
1969 default:
1970 /*

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