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libpmc: add support for POWER8/9 PMCs

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This change adds support for POWER8/9 performance counters.

Reviewed by:	jhibbits
Sponsored by:	Eldorado Research Institute (eldorado.org.br)
Differential Revision:	https://reviews.freebsd.org/D26113
This commit is contained in:
Leandro Lupori 2020-11-05 16:41:28 +00:00
parent 68dd718256
commit 5cebdfc072
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=367391
1 changed files with 20 additions and 0 deletions
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20
lib/libpmc/libpmc.c
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@ -149,6 +149,7 @@ PMC_CLASSDEP_TABLE(mips74k, MIPS74K);
PMC_CLASSDEP_TABLE(octeon, OCTEON);
PMC_CLASSDEP_TABLE(ppc7450, PPC7450);
PMC_CLASSDEP_TABLE(ppc970, PPC970);
PMC_CLASSDEP_TABLE(power8, POWER8);
PMC_CLASSDEP_TABLE(e500, E500);
static struct pmc_event_descr soft_event_table[PMC_EV_DYN_COUNT];
@ -204,6 +205,7 @@ PMC_MDEP_TABLE(mips74k, MIPS74K, PMC_CLASS_SOFT, PMC_CLASS_MIPS74K);
PMC_MDEP_TABLE(octeon, OCTEON, PMC_CLASS_SOFT, PMC_CLASS_OCTEON);
PMC_MDEP_TABLE(ppc7450, PPC7450, PMC_CLASS_SOFT, PMC_CLASS_PPC7450, PMC_CLASS_TSC);
PMC_MDEP_TABLE(ppc970, PPC970, PMC_CLASS_SOFT, PMC_CLASS_PPC970, PMC_CLASS_TSC);
PMC_MDEP_TABLE(power8, POWER8, PMC_CLASS_SOFT, PMC_CLASS_POWER8, PMC_CLASS_TSC);
PMC_MDEP_TABLE(e500, E500, PMC_CLASS_SOFT, PMC_CLASS_E500, PMC_CLASS_TSC);
PMC_MDEP_TABLE(generic, SOFT, PMC_CLASS_SOFT);
@ -252,6 +254,7 @@ PMC_CLASS_TABLE_DESC(octeon, OCTEON, octeon, mips);
#if defined(__powerpc__)
PMC_CLASS_TABLE_DESC(ppc7450, PPC7450, ppc7450, powerpc);
PMC_CLASS_TABLE_DESC(ppc970, PPC970, ppc970, powerpc);
PMC_CLASS_TABLE_DESC(power8, POWER8, power8, powerpc);
PMC_CLASS_TABLE_DESC(e500, E500, e500, powerpc);
#endif
@ -913,6 +916,12 @@ static struct pmc_event_alias ppc970_aliases[] = {
EV_ALIAS(NULL, NULL)
};
static struct pmc_event_alias power8_aliases[] = {
EV_ALIAS("instructions", "INSTR_COMPLETED"),
EV_ALIAS("cycles", "CYCLES"),
EV_ALIAS(NULL, NULL)
};
static struct pmc_event_alias e500_aliases[] = {
EV_ALIAS("instructions", "INSTR_COMPLETED"),
EV_ALIAS("cycles", "CYCLES"),
@ -1313,6 +1322,10 @@ pmc_event_names_of_class(enum pmc_class cl, const char ***eventnames,
ev = ppc970_event_table;
count = PMC_EVENT_TABLE_SIZE(ppc970);
break;
case PMC_CLASS_POWER8:
ev = power8_event_table;
count = PMC_EVENT_TABLE_SIZE(power8);
break;
case PMC_CLASS_E500:
ev = e500_event_table;
count = PMC_EVENT_TABLE_SIZE(e500);
@ -1564,6 +1577,10 @@ pmc_init(void)
PMC_MDEP_INIT(ppc970);
pmc_class_table[n] = &ppc970_class_table_descr;
break;
case PMC_CPU_PPC_POWER8:
PMC_MDEP_INIT(power8);
pmc_class_table[n] = &power8_class_table_descr;
break;
case PMC_CPU_PPC_E500:
PMC_MDEP_INIT(e500);
pmc_class_table[n] = &e500_class_table_descr;
@ -1701,6 +1718,9 @@ _pmc_name_of_event(enum pmc_event pe, enum pmc_cputype cpu)
} else if (pe >= PMC_EV_PPC970_FIRST && pe <= PMC_EV_PPC970_LAST) {
ev = ppc970_event_table;
evfence = ppc970_event_table + PMC_EVENT_TABLE_SIZE(ppc970);
} else if (pe >= PMC_EV_POWER8_FIRST && pe <= PMC_EV_POWER8_LAST) {
ev = power8_event_table;
evfence = power8_event_table + PMC_EVENT_TABLE_SIZE(power8);
} else if (pe >= PMC_EV_E500_FIRST && pe <= PMC_EV_E500_LAST) {
ev = e500_event_table;
evfence = e500_event_table + PMC_EVENT_TABLE_SIZE(e500);