918da95176
An observation from trace output of the existing FSI tracepoints was that the remote device was sometimes reporting as busy. Add a new tracepoint reporting the busy count in order to get a better grip on how often this is the case. Signed-off-by: Andrew Jeffery <andrew@aj.id.au> Acked-by: Eddie James <eajames@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Tested-by: Joel Stanley <joel@jms.id.au>
86 lines
1.9 KiB
C
86 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#undef TRACE_SYSTEM
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#define TRACE_SYSTEM fsi_master_gpio
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#if !defined(_TRACE_FSI_MASTER_GPIO_H) || defined(TRACE_HEADER_MULTI_READ)
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#define _TRACE_FSI_MASTER_GPIO_H
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#include <linux/tracepoint.h>
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TRACE_EVENT(fsi_master_gpio_in,
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TP_PROTO(const struct fsi_master_gpio *master, int bits, uint64_t msg),
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TP_ARGS(master, bits, msg),
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TP_STRUCT__entry(
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__field(int, master_idx)
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__field(int, bits)
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__field(uint64_t, msg)
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),
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TP_fast_assign(
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__entry->master_idx = master->master.idx;
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__entry->bits = bits;
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__entry->msg = msg & ((1ull<<bits) - 1);
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),
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TP_printk("fsi-gpio%d => %0*llx[%d]",
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__entry->master_idx,
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(__entry->bits + 3) / 4,
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__entry->msg,
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__entry->bits
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)
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);
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TRACE_EVENT(fsi_master_gpio_out,
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TP_PROTO(const struct fsi_master_gpio *master, int bits, uint64_t msg),
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TP_ARGS(master, bits, msg),
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TP_STRUCT__entry(
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__field(int, master_idx)
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__field(int, bits)
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__field(uint64_t, msg)
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),
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TP_fast_assign(
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__entry->master_idx = master->master.idx;
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__entry->bits = bits;
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__entry->msg = msg & ((1ull<<bits) - 1);
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),
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TP_printk("fsi-gpio%d <= %0*llx[%d]",
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__entry->master_idx,
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(__entry->bits + 3) / 4,
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__entry->msg,
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__entry->bits
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)
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);
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TRACE_EVENT(fsi_master_gpio_break,
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TP_PROTO(const struct fsi_master_gpio *master),
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TP_ARGS(master),
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TP_STRUCT__entry(
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__field(int, master_idx)
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),
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TP_fast_assign(
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__entry->master_idx = master->master.idx;
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),
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TP_printk("fsi-gpio%d ----break---",
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__entry->master_idx
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)
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);
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TRACE_EVENT(fsi_master_gpio_poll_response_busy,
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TP_PROTO(const struct fsi_master_gpio *master, int busy),
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TP_ARGS(master, busy),
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TP_STRUCT__entry(
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__field(int, master_idx)
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__field(int, busy)
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),
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TP_fast_assign(
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__entry->master_idx = master->master.idx;
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__entry->busy = busy;
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),
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TP_printk("fsi-gpio%d: device reported busy %d times",
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__entry->master_idx, __entry->busy)
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);
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#endif /* _TRACE_FSI_MASTER_GPIO_H */
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#include <trace/define_trace.h>
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