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usb: host: xhci: make a generic TRB tracer

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instead of having a tracer that can only trace command completions,
let's promote this tracer so it can trace and decode any TRB.

With that, it will be easier to extrapolate the lifetime of any TRB
which might help debugging certain issues.

Signed-off-by: Felipe Balbi <felipe.balbi@linux.intel.com>
Signed-off-by: Mathias Nyman <mathias.nyman@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Felipe Balbi
2017-01-23 14:20:19 +02:00
committed by Greg Kroah-Hartman
parent ed6d643b14
commit a37c3f76e6
3 changed files with 375 additions and 23 deletions
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55
drivers/usb/host/xhci-trace.h
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@@ -115,34 +115,47 @@ DEFINE_EVENT(xhci_log_ctx, xhci_address_ctx,
TP_ARGS(xhci, ctx, ep_num)
);
DECLARE_EVENT_CLASS(xhci_log_event,
TP_PROTO(void *trb_va, struct xhci_generic_trb *ev),
TP_ARGS(trb_va, ev),
DECLARE_EVENT_CLASS(xhci_log_trb,
TP_PROTO(struct xhci_ring *ring, struct xhci_generic_trb *trb),
TP_ARGS(ring, trb),
TP_STRUCT__entry(
__field(void *, va)
__field(u64, dma)
__field(u32, status)
__field(u32, flags)
__dynamic_array(u8, trb, sizeof(struct xhci_generic_trb))
__field(u32, type)
__field(u32, field0)
__field(u32, field1)
__field(u32, field2)
__field(u32, field3)
),
TP_fast_assign(
__entry->va = trb_va;
__entry->dma = ((u64)le32_to_cpu(ev->field[1])) << 32 |
le32_to_cpu(ev->field[0]);
__entry->status = le32_to_cpu(ev->field[2]);
__entry->flags = le32_to_cpu(ev->field[3]);
memcpy(__get_dynamic_array(trb), trb_va,
sizeof(struct xhci_generic_trb));
__entry->type = ring->type;
__entry->field0 = le32_to_cpu(trb->field[0]);
__entry->field1 = le32_to_cpu(trb->field[1]);
__entry->field2 = le32_to_cpu(trb->field[2]);
__entry->field3 = le32_to_cpu(trb->field[3]);
),
TP_printk("\ntrb_dma=@%llx, trb_va=@%p, status=%08x, flags=%08x",
(unsigned long long) __entry->dma, __entry->va,
__entry->status, __entry->flags
TP_printk("%s: %s", xhci_ring_type_string(__entry->type),
xhci_decode_trb(__entry->field0, __entry->field1,
__entry->field2, __entry->field3)
)
);
DEFINE_EVENT(xhci_log_event, xhci_cmd_completion,
TP_PROTO(void *trb_va, struct xhci_generic_trb *ev),
TP_ARGS(trb_va, ev)
DEFINE_EVENT(xhci_log_trb, xhci_handle_event,
TP_PROTO(struct xhci_ring *ring, struct xhci_generic_trb *trb),
TP_ARGS(ring, trb)
);
DEFINE_EVENT(xhci_log_trb, xhci_handle_command,
TP_PROTO(struct xhci_ring *ring, struct xhci_generic_trb *trb),
TP_ARGS(ring, trb)
);
DEFINE_EVENT(xhci_log_trb, xhci_handle_transfer,
TP_PROTO(struct xhci_ring *ring, struct xhci_generic_trb *trb),
TP_ARGS(ring, trb)
);
DEFINE_EVENT(xhci_log_trb, xhci_queue_trb,
TP_PROTO(struct xhci_ring *ring, struct xhci_generic_trb *trb),
TP_ARGS(ring, trb)
);
#endif /* __XHCI_TRACE_H */