From 63a23b9a7451660525c90b08219e14e701e294f1 Mon Sep 17 00:00:00 2001 From: Xenia Ragiadakou Date: Tue, 6 Aug 2013 07:52:48 +0300 Subject: 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 Signed-off-by: Sarah Sharp --- drivers/usb/host/xhci-trace.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) (limited to 'drivers/usb/host/xhci-trace.h') 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 */ -- cgit v1.2.1