[PATCH v4 07/40] fsi: core: Add slave error trace

Eddie James
2024-06-05T21:23:36Z

Trace out the FSI slave status and interrupt status.

Signed-off-by: Eddie James <eajames@linux.ibm.com>
---
drivers/fsi/fsi-core.c | 1 +
include/trace/events/fsi.h | 19 +++++++++++++++++++
2 files changed, 20 insertions(+)

diff --git a/drivers/fsi/fsi-core.c b/drivers/fsi/fsi-core.c
index b3029f9c05e4a..93bbdcf50a89a 100644
--- a/drivers/fsi/fsi-core.c
+++ b/drivers/fsi/fsi-core.c
@@ -185,6 +185,7 @@ static int fsi_slave_report_and_clear_errors(struct fsi_slave *slave)

dev_dbg(&slave->dev, "status: 0x%08x, sisc: 0x%08x\n",
be32_to_cpu(stat), be32_to_cpu(irq));
+ trace_fsi_slave_error(slave, be32_to_cpu(irq), be32_to_cpu(stat));

/* clear interrupts */
return fsi_master_write(master, link, id, FSI_SLAVE_BASE + FSI_SISC,
diff --git a/include/trace/events/fsi.h b/include/trace/events/fsi.h
index fed8835f438e5..5509afc98ee8b 100644
--- a/include/trace/events/fsi.h
+++ b/include/trace/events/fsi.h
@@ -115,6 +115,25 @@ TRACE_EVENT(fsi_master_unregister,
TP_printk("fsi%d (%d links)", __entry->master_idx, __entry->n_links)
);

+TRACE_EVENT(fsi_slave_error,
+ TP_PROTO(const struct fsi_slave *slave, uint32_t sisc, uint32_t sstat),
+ TP_ARGS(slave, sisc, sstat),
+ TP_STRUCT__entry(
+ __field(int, master_idx)
+ __field(int, link)
+ __field(uint32_t, sisc)
+ __field(uint32_t, sstat)
+ ),
+ TP_fast_assign(
+ __entry->master_idx = slave->master->idx;
+ __entry->link = slave->link;
+ __entry->sisc = sisc;
+ __entry->sstat = sstat;
+ ),
+ TP_printk("fsi%d:%02d sisc:%08x sstat:%08x", __entry->master_idx, __entry->link,
+ __entry->sisc, __entry->sstat)
+);
+
TRACE_EVENT(fsi_slave_init,
TP_PROTO(const struct fsi_slave *slave),
TP_ARGS(slave),
--
2.39.3