[PATCH 2/2] acpi: iort: Add PMCG support

[Jeffrey Hugo]

The IORT spec rev C defines type 5 nodes for Performance Monitoring
Counter Group (PMCG).  Add support for these nodes.

Signed-off-by: Jeffrey Hugo <jhugo at codeaurora.org>
---
 src/acpi/iort/iort.c        | 28 ++++++++++++++++++++++++++++
 src/lib/include/fwts_acpi.h | 11 +++++++++++
 2 files changed, 39 insertions(+)

diff --git a/src/acpi/iort/iort.c b/src/acpi/iort/iort.c
index 930eb5f..1cab6cb 100644
--- a/src/acpi/iort/iort.c
+++ b/src/acpi/iort/iort.c
@@ -653,6 +653,31 @@ static void iort_check_smmuv3(
 }
 
 /*
+ *  Check IORT Performance Monitoring Counter Group (PMCG)
+ */
+static void iort_check_pmcg(
+	fwts_framework *fw,
+	uint8_t *data,
+	uint8_t *node_end,
+	bool *passed)
+{
+	fwts_acpi_table_iort_pmcg_node *node =
+		(fwts_acpi_table_iort_pmcg_node *)data;
+
+	iort_node_dump(fw, "IORT PMCG node", (fwts_acpi_table_iort_node *)data);
+	fwts_log_info_verbatim(fw, "  Base Address:             0x%16.16" PRIx64, node->base_address);
+	fwts_log_info_verbatim(fw, "  Overflow interrupt GSIV:  0x%8.8" PRIx32, node->gsiv);
+	fwts_log_info_verbatim(fw, "  Node reference:           0x%8.8" PRIx32, node->node_ref);
+
+	iort_id_mappings_dump(fw, data, node_end);
+
+	iort_node_check(fw, data, false, false, passed);
+	iort_id_mappings_check(fw, data, node_end, passed);
+
+	fwts_log_nl(fw);
+}
+
+/*
  *  IORT Remapping Table
  *     http://infocenter.arm.com/help/topic/com.arm.doc.den0049a/DEN0049A_IO_Remapping_Table.pdf
  */
@@ -725,6 +750,9 @@ static int iort_test1(fwts_framework *fw)
 		case 0x04:
 			iort_check_smmuv3(fw, data, node_end, &passed);
 			break;
+		case 0x05:
+			iort_check_pmcg(fw, data, node_end, &passed);
+			break;
 		default:
 			/* reserved */
 			passed = false;
diff --git a/src/lib/include/fwts_acpi.h b/src/lib/include/fwts_acpi.h
index 8bc1164..b34a1aa 100644
--- a/src/lib/include/fwts_acpi.h
+++ b/src/lib/include/fwts_acpi.h
@@ -1770,6 +1770,17 @@ typedef struct {
 	*/
 } __attribute__ ((packed)) fwts_acpi_table_iort_smmuv3_node;
 
+typedef struct {
+	fwts_acpi_table_iort_node iort_node;
+	uint64_t	base_address;
+	uint32_t	gsiv;
+	uint32_t	node_ref;
+	/*
+	   followed by array of ids_mappings at some offset
+	   fwts_acpi_table_iort_id_mapping identifier_array[0];
+	*/
+} __attribute__ ((packed)) fwts_acpi_table_iort_pmcg_node;
+
 /*
  * ACPI STAO (Status Override Table)
  *   http://wiki.xenproject.org/mediawiki/images/0/02/Status-override-table.pdf
-- 
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