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Index: head/usr.sbin/acpi/acpidump/acpi.c
===================================================================
--- head/usr.sbin/acpi/acpidump/acpi.c
+++ head/usr.sbin/acpi/acpidump/acpi.c
@@ -68,6 +68,7 @@
static void acpi_handle_mcfg(ACPI_TABLE_HEADER *sdp);
static void acpi_handle_slit(ACPI_TABLE_HEADER *sdp);
static void acpi_handle_wddt(ACPI_TABLE_HEADER *sdp);
+static void acpi_handle_lpit(ACPI_TABLE_HEADER *sdp);
static void acpi_print_srat_cpu(uint32_t apic_id, uint32_t proximity_domain,
uint32_t flags);
static void acpi_print_srat_memory(ACPI_SRAT_MEM_AFFINITY *mp);
@@ -716,6 +717,79 @@
}
static void
+acpi_print_native_lpit(ACPI_LPIT_NATIVE *nl)
+{
+ printf("\tEntryTrigger=");
+ acpi_print_gas(&nl->EntryTrigger);
+ printf("\tResidency=%u\n", nl->Residency);
+ printf("\tLatency=%u\n", nl->Latency);
+ if (nl->Header.Flags & ACPI_LPIT_NO_COUNTER)
+ printf("\tResidencyCounter=Not Present");
+ else {
+ printf("\tResidencyCounter=");
+ acpi_print_gas(&nl->ResidencyCounter);
+ }
+ if (nl->CounterFrequency)
+ printf("\tCounterFrequency=%ju\n", nl->CounterFrequency);
+ else
+ printf("\tCounterFrequency=TSC\n");
+}
+
+static void
+acpi_print_lpit(ACPI_LPIT_HEADER *lpit)
+{
+ if (lpit->Type == ACPI_LPIT_TYPE_NATIVE_CSTATE)
+ printf("\tType=ACPI_LPIT_TYPE_NATIVE_CSTATE\n");
+ else
+ warnx("unknown LPIT type %u", lpit->Type);
+
+ printf("\tLength=%u\n", lpit->Length);
+ printf("\tUniqueId=0x%04x\n", lpit->UniqueId);
+#define PRINTFLAG(var, flag) printflag((var), ACPI_LPIT_## flag, #flag)
+ printf("\tFlags=");
+ PRINTFLAG(lpit->Flags, STATE_DISABLED);
+ PRINTFLAG_END();
+#undef PRINTFLAG
+
+ if (lpit->Type == ACPI_LPIT_TYPE_NATIVE_CSTATE)
+ return acpi_print_native_lpit((ACPI_LPIT_NATIVE *)lpit);
+}
+
+static void
+acpi_walk_lpit(ACPI_TABLE_HEADER *table, void *first,
+ void (*action)(ACPI_LPIT_HEADER *))
+{
+ ACPI_LPIT_HEADER *subtable;
+ char *end;
+
+ subtable = first;
+ end = (char *)table + table->Length;
+ while ((char *)subtable < end) {
+ printf("\n");
+ if (subtable->Length < sizeof(ACPI_LPIT_HEADER)) {
+ warnx("invalid subtable length %u", subtable->Length);
+ return;
+ }
+ action(subtable);
+ subtable = (ACPI_LPIT_HEADER *)((char *)subtable +
+ subtable->Length);
+ }
+}
+
+static void
+acpi_handle_lpit(ACPI_TABLE_HEADER *sdp)
+{
+ ACPI_TABLE_LPIT *lpit;
+
+ printf(BEGIN_COMMENT);
+ acpi_print_sdt(sdp);
+ lpit = (ACPI_TABLE_LPIT *)sdp;
+ acpi_walk_lpit(sdp, (lpit + 1), acpi_print_lpit);
+
+ printf(END_COMMENT);
+}
+
+static void
acpi_print_srat_cpu(uint32_t apic_id, uint32_t proximity_domain,
uint32_t flags)
{
@@ -1693,6 +1767,8 @@
acpi_handle_nfit(sdp);
else if (!memcmp(sdp->Signature, ACPI_SIG_WDDT, 4))
acpi_handle_wddt(sdp);
+ else if (!memcmp(sdp->Signature, ACPI_SIG_LPIT, 4))
+ acpi_handle_lpit(sdp);
else {
printf(BEGIN_COMMENT);
acpi_print_sdt(sdp);
Index: head/usr.sbin/acpi/acpidump/acpidump.8
===================================================================
--- head/usr.sbin/acpi/acpidump/acpidump.8
+++ head/usr.sbin/acpi/acpidump/acpidump.8
@@ -29,7 +29,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd June 20, 2018
+.Dd July 10, 2018
.Dt ACPIDUMP 8
.Os
.Sh NAME
@@ -103,6 +103,7 @@
.It FACS
.It FADT
.It HPET
+.It LPIT
.It MADT
.It MCFG
.It NFIT

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