tools/arch/x86/intel_sdsi: Fix meter_show display

Fixes sdsi_meter_cert_show() to correctly decode and display the meter
certificate output. Adds and displays a missing version field, displays the
ASCII name of the signature, and fixes the print alignment.

Fixes: 7fdc03a7 ("tools/arch/x86: intel_sdsi: Add support for reading meter certificates")
Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Reviewed-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20240411025856.2782476-7-david.e.box@linux.intel.comSigned-off-by: Hans de Goede <hdegoede@redhat.com>

tools/arch/x86/intel_sdsi/intel_sdsi.c

@@ -153,11 +153,12 @@ struct bundle_encoding {
 };
 
 struct meter_certificate {
-	uint32_t block_signature;
-	uint32_t counter_unit;
+	uint32_t signature;
+	uint32_t version;
 	uint64_t ppin;
+	uint32_t counter_unit;
 	uint32_t bundle_length;
-	uint32_t reserved;
+	uint64_t reserved;
 	uint32_t mmrc_encoding;
 	uint32_t mmrc_counter;
 };
@@ -338,6 +339,7 @@ static int sdsi_meter_cert_show(struct sdsi_dev *s)
 	uint32_t count = 0;
 	FILE *cert_ptr;
 	int ret, size;
+	char name[4];
 
 	ret = sdsi_update_registers(s);
 	if (ret)
@@ -379,12 +381,19 @@ static int sdsi_meter_cert_show(struct sdsi_dev *s)
 	printf("\n");
 	printf("Meter certificate for device %s\n", s->dev_name);
 	printf("\n");
-	printf("Block Signature:       0x%x\n", mc->block_signature);
-	printf("Count Unit:            %dms\n", mc->counter_unit);
-	printf("PPIN:                  0x%lx\n", mc->ppin);
-	printf("Feature Bundle Length: %d\n", mc->bundle_length);
-	printf("MMRC encoding:         %d\n", mc->mmrc_encoding);
-	printf("MMRC counter:          %d\n", mc->mmrc_counter);
+
+	get_feature(mc->signature, name);
+	printf("Signature:                    %.4s\n", name);
+
+	printf("Version:                      %d\n", mc->version);
+	printf("Count Unit:                   %dms\n", mc->counter_unit);
+	printf("PPIN:                         0x%lx\n", mc->ppin);
+	printf("Feature Bundle Length:        %d\n", mc->bundle_length);
+
+	get_feature(mc->mmrc_encoding, name);
+	printf("MMRC encoding:                %.4s\n", name);
+
+	printf("MMRC counter:                 %d\n", mc->mmrc_counter);
 	if (mc->bundle_length % 8) {
 		fprintf(stderr, "Invalid bundle length\n");
 		return -1;
@@ -398,7 +407,7 @@ static int sdsi_meter_cert_show(struct sdsi_dev *s)
 
 	bec = (void *)(mc) + sizeof(mc);
 
-	printf("Number of Feature Counters:          %d\n", mc->bundle_length / 8);
+	printf("Number of Feature Counters:   %ld\n", BUNDLE_COUNT(mc->bundle_length));
 	while (count++ < mc->bundle_length / 8) {
 		char feature[5];