Implement hwpmc(4) for Freescale e500 core.

This supports e500v1, e500v2, and e500mc. Tested only on e500v2, but the
performance counters are identical across all, with e500mc having some
additional events.

Relnotes:	Yes

1 files changed, 22 insertions, 2 deletions

diff --git a/lib/libpmc/libpmc.c b/lib/libpmc/libpmc.c
index 7d429eb..2ad2268 100644
--- a/lib/libpmc/libpmc.c
+++ b/lib/libpmc/libpmc.c
@@ -164,6 +164,7 @@ PMC_CLASSDEP_TABLE(octeon, OCTEON);
 PMC_CLASSDEP_TABLE(ucf, UCF);
 PMC_CLASSDEP_TABLE(ppc7450, PPC7450);
 PMC_CLASSDEP_TABLE(ppc970, PPC970);
+PMC_CLASSDEP_TABLE(e500, E500);
 
 static struct pmc_event_descr soft_event_table[PMC_EV_DYN_COUNT];
 
@@ -296,8 +297,9 @@ PMC_MDEP_TABLE(armv7, ARMV7, PMC_CLASS_SOFT, PMC_CLASS_ARMV7);
 PMC_MDEP_TABLE(mips24k, MIPS24K, PMC_CLASS_SOFT, PMC_CLASS_MIPS24K);
 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_MDEP_TABLE(ppc970, PPC970, PMC_CLASS_SOFT, PMC_CLASS_PPC970);
+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(e500, E500, PMC_CLASS_SOFT, PMC_CLASS_E500, PMC_CLASS_TSC);
 PMC_MDEP_TABLE(generic, SOFT, PMC_CLASS_SOFT);
 
 static const struct pmc_event_descr tsc_event_table[] =
@@ -368,6 +370,7 @@ 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(e500, E500, e500, powerpc);
 #endif
 
 static struct pmc_class_descr soft_class_table_descr =
@@ -2494,6 +2497,12 @@ static struct pmc_event_alias ppc970_aliases[] = {
 	EV_ALIAS(NULL, NULL)
 };
 
+static struct pmc_event_alias e500_aliases[] = {
+	EV_ALIAS("instructions", "INSTR_COMPLETED"),
+	EV_ALIAS("cycles",       "CYCLES"),
+	EV_ALIAS(NULL, NULL)
+};
+
 #define	POWERPC_KW_OS		"os"
 #define	POWERPC_KW_USR		"usr"
 #define	POWERPC_KW_ANYTHREAD	"anythread"
@@ -2949,6 +2958,10 @@ 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_E500:
+		ev = e500_event_table;
+		count = PMC_EVENT_TABLE_SIZE(e500);
+		break;
 	case PMC_CLASS_SOFT:
 		ev = soft_event_table;
 		count = soft_event_info.pm_nevent;
@@ -3245,6 +3258,10 @@ pmc_init(void)
 		PMC_MDEP_INIT(ppc970);
 		pmc_class_table[n] = &ppc970_class_table_descr;
 		break;
+	case PMC_CPU_PPC_E500:
+		PMC_MDEP_INIT(e500);
+		pmc_class_table[n] = &e500_class_table_descr;
+		break;
 #endif
 	default:
 		/*
@@ -3444,6 +3461,9 @@ _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_E500_FIRST && pe <= PMC_EV_E500_LAST) {
+		ev = e500_event_table;
+		evfence = e500_event_table + PMC_EVENT_TABLE_SIZE(e500);
 	} else if (pe == PMC_EV_TSC_TSC) {
 		ev = tsc_event_table;
 		evfence = tsc_event_table + PMC_EVENT_TABLE_SIZE(tsc);