fsi: aspeed: Add trace points

These trace points help with debugging the FSI master. They show the low
level reads, writes and error states of the master.

Signed-off-by: Joel Stanley <joel@jms.id.au>
Link: https://lore.kernel.org/r/20191108051945.7109-11-joel@jms.id.au
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 77 insertions, 0 deletions

diff --git a/include/trace/events/fsi_master_aspeed.h b/include/trace/events/fsi_master_aspeed.h
new file mode 100644
index 000000000000..a355ceacc33f
--- /dev/null
+++ b/include/trace/events/fsi_master_aspeed.h
@@ -0,0 +1,77 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM fsi_master_aspeed
+
+#if !defined(_TRACE_FSI_MASTER_ASPEED_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_FSI_MASTER_ASPEED_H
+
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(fsi_master_aspeed_opb_read,
+	TP_PROTO(uint32_t addr, size_t size, uint32_t result, uint32_t status, uint32_t irq_status),
+	TP_ARGS(addr, size, result, status, irq_status),
+	TP_STRUCT__entry(
+		__field(uint32_t,  addr)
+		__field(size_t,    size)
+		__field(uint32_t,  result)
+		__field(uint32_t,  status)
+		__field(uint32_t,  irq_status)
+		),
+	TP_fast_assign(
+		__entry->addr = addr;
+		__entry->size = size;
+		__entry->result = result;
+		__entry->status = status;
+		__entry->irq_status = irq_status;
+		),
+	TP_printk("addr %08x size %zu: result %08x sts: %08x irq_sts: %08x",
+		__entry->addr, __entry->size, __entry->result,
+		__entry->status, __entry->irq_status
+	   )
+);
+
+TRACE_EVENT(fsi_master_aspeed_opb_write,
+	TP_PROTO(uint32_t addr, uint32_t val, size_t size, uint32_t status, uint32_t irq_status),
+	TP_ARGS(addr, val, size, status, irq_status),
+	TP_STRUCT__entry(
+		__field(uint32_t,    addr)
+		__field(uint32_t,    val)
+		__field(size_t,    size)
+		__field(uint32_t,  status)
+		__field(uint32_t,  irq_status)
+		),
+	TP_fast_assign(
+		__entry->addr = addr;
+		__entry->val = val;
+		__entry->size = size;
+		__entry->status = status;
+		__entry->irq_status = irq_status;
+		),
+	TP_printk("addr %08x val %08x size %zu status: %08x irq_sts: %08x",
+		__entry->addr, __entry->val, __entry->size,
+		__entry->status, __entry->irq_status
+		)
+	);
+
+TRACE_EVENT(fsi_master_aspeed_opb_error,
+	TP_PROTO(uint32_t mresp0, uint32_t mstap0, uint32_t mesrb0),
+	TP_ARGS(mresp0, mstap0, mesrb0),
+	TP_STRUCT__entry(
+		__field(uint32_t,  mresp0)
+		__field(uint32_t,  mstap0)
+		__field(uint32_t,  mesrb0)
+		),
+	TP_fast_assign(
+		__entry->mresp0 = mresp0;
+		__entry->mstap0 = mstap0;
+		__entry->mesrb0 = mesrb0;
+		),
+	TP_printk("mresp0 %08x mstap0 %08x mesrb0 %08x",
+		__entry->mresp0, __entry->mstap0, __entry->mesrb0
+		)
+	);
+
+#endif
+
+#include <trace/define_trace.h>