[PATCH V4 6/9] tools/arch/x86/intel_sdsi: Fix meter_show display

David E. Box
2024-04-11T02:59:08Z

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: 7fdc03a7370f ("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>
---
V4 - no changes

V3 - Change patch subject and changelog to clarify changes.
- Use new BUNDLE_COUNT #def

V2 - Split of V1 patch 7

tools/arch/x86/intel_sdsi/intel_sdsi.c | 29 +++++++++++++++++---------
1 file changed, 19 insertions(+), 10 deletions(-)

diff --git a/tools/arch/x86/intel_sdsi/intel_sdsi.c b/tools/arch/x86/intel_sdsi/intel_sdsi.c
index 7eaffcbff788..ae29214da102 100644
--- a/tools/arch/x86/intel_sdsi/intel_sdsi.c
+++ b/tools/arch/x86/intel_sdsi/intel_sdsi.c
@@ -153,11 +153,12 @@ struct bundle_encoding {
};

struct meter_certificate {
- uint32_t block_signature;
+ uint32_t signature;
+ uint32_t version;
+ uint64_t ppin;
uint32_t counter_unit;
- uint64_t ppin;
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];

--
2.34.1