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authorXenia Ragiadakou <burzalodowa@gmail.com>2013-08-06 07:52:48 +0300
committerSarah Sharp <sarah.a.sharp@linux.intel.com>2013-08-13 16:05:46 -0700
commit63a23b9a7451660525c90b08219e14e701e294f1 (patch)
tree7452bc6169dbb35906bfdcd7801b69d9ccc47c86 /drivers/usb/host/xhci-trace.h
parent1d27fabec068a204186c6af10e05f23911c0c902 (diff)
xhci: add xhci_cmd_completion trace event
This patch creates a new event class, called xhci_log_event, and defines the xhci_cmd_completion trace event used for tracing the commands issued to xHC that generate a completion event in the event ring. This info can be used, later, to print, in a human readable way, the completion status and flags as well as the command's type and fields using the trace-cmd tool and the appropriate plugin. Also, a tracepoint is added in handle_cmd_completion(). Signed-off-by: Xenia Ragiadakou <burzalodowa@gmail.com> Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Diffstat (limited to 'drivers/usb/host/xhci-trace.h')
-rw-r--r--drivers/usb/host/xhci-trace.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-trace.h b/drivers/usb/host/xhci-trace.h
index c653ddfc0211..d6c222916858 100644
--- a/drivers/usb/host/xhci-trace.h
+++ b/drivers/usb/host/xhci-trace.h
@@ -93,6 +93,36 @@ 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),
+ TP_STRUCT__entry(
+ __field(void *, va)
+ __field(u64, dma)
+ __field(u32, status)
+ __field(u32, flags)
+ __dynamic_array(__le32, trb, 4)
+ ),
+ TP_fast_assign(
+ __entry->va = trb_va;
+ __entry->dma = le64_to_cpu(((u64)ev->field[1]) << 32 |
+ 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));
+ ),
+ TP_printk("\ntrb_dma=@%llx, trb_va=@%p, status=%08x, flags=%08x",
+ (unsigned long long) __entry->dma, __entry->va,
+ __entry->status, __entry->flags
+ )
+);
+
+DEFINE_EVENT(xhci_log_event, xhci_cmd_completion,
+ TP_PROTO(void *trb_va, struct xhci_generic_trb *ev),
+ TP_ARGS(trb_va, ev)
+);
+
#endif /* __XHCI_TRACE_H */
/* this part must be outside header guard */