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/* SPDX-License-Identifier: GPL-2.0 */
/*
* Thunderbolt tracing support
*
* Copyright (C) 2024, Intel Corporation
* Author: Mika Westerberg <mika.westerberg@linux.intel.com>
* Gil Fine <gil.fine@intel.com>
*/
#undef TRACE_SYSTEM
#define TRACE_SYSTEM thunderbolt
#if !defined(TB_TRACE_H_) || defined(TRACE_HEADER_MULTI_READ)
#define TB_TRACE_H_
#include <linux/trace_seq.h>
#include <linux/tracepoint.h>
#include "tb_msgs.h"
#define tb_cfg_type_name(type) { type, #type }
#define show_type_name(val) \
__print_symbolic(val, \
tb_cfg_type_name(TB_CFG_PKG_READ), \
tb_cfg_type_name(TB_CFG_PKG_WRITE), \
tb_cfg_type_name(TB_CFG_PKG_ERROR), \
tb_cfg_type_name(TB_CFG_PKG_NOTIFY_ACK), \
tb_cfg_type_name(TB_CFG_PKG_EVENT), \
tb_cfg_type_name(TB_CFG_PKG_XDOMAIN_REQ), \
tb_cfg_type_name(TB_CFG_PKG_XDOMAIN_RESP), \
tb_cfg_type_name(TB_CFG_PKG_OVERRIDE), \
tb_cfg_type_name(TB_CFG_PKG_RESET), \
tb_cfg_type_name(TB_CFG_PKG_ICM_EVENT), \
tb_cfg_type_name(TB_CFG_PKG_ICM_CMD), \
tb_cfg_type_name(TB_CFG_PKG_ICM_RESP))
#ifndef TB_TRACE_HELPERS
#define TB_TRACE_HELPERS
static inline const char *show_data_read_write(struct trace_seq *p,
const u32 *data)
{
const struct cfg_read_pkg *msg = (const struct cfg_read_pkg *)data;
const char *ret = trace_seq_buffer_ptr(p);
trace_seq_printf(p, "offset=%#x, len=%u, port=%d, config=%#x, seq=%d, ",
msg->addr.offset, msg->addr.length, msg->addr.port,
msg->addr.space, msg->addr.seq);
return ret;
}
static inline const char *show_data_error(struct trace_seq *p, const u32 *data)
{
const struct cfg_error_pkg *msg = (const struct cfg_error_pkg *)data;
const char *ret = trace_seq_buffer_ptr(p);
trace_seq_printf(p, "error=%#x, port=%d, plug=%#x, ", msg->error,
msg->port, msg->pg);
return ret;
}
static inline const char *show_data_event(struct trace_seq *p, const u32 *data)
{
const struct cfg_event_pkg *msg = (const struct cfg_event_pkg *)data;
const char *ret = trace_seq_buffer_ptr(p);
trace_seq_printf(p, "port=%d, unplug=%#x, ", msg->port, msg->unplug);
return ret;
}
static inline const char *show_route(struct trace_seq *p, const u32 *data)
{
const struct tb_cfg_header *header = (const struct tb_cfg_header *)data;
const char *ret = trace_seq_buffer_ptr(p);
trace_seq_printf(p, "route=%llx, ", tb_cfg_get_route(header));
return ret;
}
static inline const char *show_data(struct trace_seq *p, u8 type,
const u32 *data, u32 length)
{
const char *ret = trace_seq_buffer_ptr(p);
const char *prefix = "";
int i;
switch (type) {
case TB_CFG_PKG_READ:
case TB_CFG_PKG_WRITE:
show_route(p, data);
show_data_read_write(p, data);
break;
case TB_CFG_PKG_ERROR:
show_route(p, data);
show_data_error(p, data);
break;
case TB_CFG_PKG_EVENT:
show_route(p, data);
show_data_event(p, data);
break;
case TB_CFG_PKG_ICM_EVENT:
case TB_CFG_PKG_ICM_CMD:
case TB_CFG_PKG_ICM_RESP:
/* ICM messages always target the host router */
trace_seq_puts(p, "route=0, ");
break;
default:
show_route(p, data);
break;
}
trace_seq_printf(p, "data=[");
for (i = 0; i < length; i++) {
trace_seq_printf(p, "%s0x%08x", prefix, data[i]);
prefix = ", ";
}
trace_seq_printf(p, "]");
trace_seq_putc(p, 0);
return ret;
}
#endif
DECLARE_EVENT_CLASS(tb_raw,
TP_PROTO(int index, u8 type, const void *data, size_t size),
TP_ARGS(index, type, data, size),
TP_STRUCT__entry(
__field(int, index)
__field(u8, type)
__field(size_t, size)
__dynamic_array(u32, data, size / 4)
),
TP_fast_assign(
__entry->index = index;
__entry->type = type;
__entry->size = size / 4;
memcpy(__get_dynamic_array(data), data, size);
),
TP_printk("type=%s, size=%zd, domain=%d, %s",
show_type_name(__entry->type), __entry->size, __entry->index,
show_data(p, __entry->type, __get_dynamic_array(data),
__entry->size)
)
);
DEFINE_EVENT(tb_raw, tb_tx,
TP_PROTO(int index, u8 type, const void *data, size_t size),
TP_ARGS(index, type, data, size)
);
DEFINE_EVENT(tb_raw, tb_event,
TP_PROTO(int index, u8 type, const void *data, size_t size),
TP_ARGS(index, type, data, size)
);
TRACE_EVENT(tb_rx,
TP_PROTO(int index, u8 type, const void *data, size_t size, bool dropped),
TP_ARGS(index, type, data, size, dropped),
TP_STRUCT__entry(
__field(int, index)
__field(u8, type)
__field(size_t, size)
__dynamic_array(u32, data, size / 4)
__field(bool, dropped)
),
TP_fast_assign(
__entry->index = index;
__entry->type = type;
__entry->size = size / 4;
memcpy(__get_dynamic_array(data), data, size);
__entry->dropped = dropped;
),
TP_printk("type=%s, dropped=%u, size=%zd, domain=%d, %s",
show_type_name(__entry->type), __entry->dropped,
__entry->size, __entry->index,
show_data(p, __entry->type, __get_dynamic_array(data),
__entry->size)
)
);
#endif /* TB_TRACE_H_ */
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE trace
/* This part must be outside protection */
#include <trace/define_trace.h>
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