Message-ID: <1530647879-10007-11-git-send-email-pawell@cadence.com>
Date:   Tue, 3 Jul 2018 20:57:54 +0100
From:   Pawel Laszczak <pawell@...ence.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        <linux-usb@...r.kernel.org>, Felipe Balbi <balbi@...nel.org>
CC:     <linux-kernel@...r.kernel.org>, <ltyrala@...ence.com>,
        <pawell@...ence.com>
Subject: [PATCH 10/15] Introduce Cadence USBSSP DRD Driver - added trace files.

Signed-off-by: Laszczak Pawel <pawell@...ence.com>
---
 drivers/usb/usbssp/gadget-trace.c |  12 +
 drivers/usb/usbssp/gadget-trace.h | 505 ++++++++++++++++++++++++++++++
 2 files changed, 517 insertions(+)
 create mode 100644 drivers/usb/usbssp/gadget-trace.c
 create mode 100644 drivers/usb/usbssp/gadget-trace.h

diff --git a/drivers/usb/usbssp/gadget-trace.c b/drivers/usb/usbssp/gadget-trace.c
new file mode 100644
index 000000000000..6c8ef287d81b
--- /dev/null
+++ b/drivers/usb/usbssp/gadget-trace.c
@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * USBSSP device controller driver
+ *
+ * Copyright (C) 2018 Cadence.
+ *
+ * Author: Pawel Laszczak
+ * Code borrowed from the Linux XHCI driver.
+ */
+
+#define CREATE_TRACE_POINTS
+#include "gadget-trace.h"
diff --git a/drivers/usb/usbssp/gadget-trace.h b/drivers/usb/usbssp/gadget-trace.h
new file mode 100644
index 000000000000..6adba591bade
--- /dev/null
+++ b/drivers/usb/usbssp/gadget-trace.h
@@ -0,0 +1,505 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * USBSSP device controller driver
+ *
+ * Copyright (C) 2018 Cadence.
+ *
+ * Author: Pawel Laszczak
+ * Code borrowed from the Linux XHCI driver.
+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM usbssp-dev
+
+/*
+ * The TRACE_SYSTEM_VAR defaults to TRACE_SYSTEM, but must be a
+ * legitimate C variable. It is not exported to user space.
+ */
+#undef TRACE_SYSTEM_VAR
+#define TRACE_SYSTEM_VAR usbssp_dev
+
+#if !defined(__USBSSP_DEV_TRACE_H) || defined(TRACE_HEADER_MULTI_READ)
+#define __USBSSP_DEV_TRACE_H
+
+#include <linux/tracepoint.h>
+#include "gadget.h"
+
+#define USBSSP_DEV_MSG_MAX	500
+
+DECLARE_EVENT_CLASS(usbssp_log_msg,
+	TP_PROTO(struct va_format *vaf),
+	TP_ARGS(vaf),
+	TP_STRUCT__entry(__dynamic_array(char, msg, USBSSP_DEV_MSG_MAX)),
+	TP_fast_assign(
+		vsnprintf(__get_str(msg), USBSSP_DEV_MSG_MAX, vaf->fmt, *vaf->va);
+	),
+	TP_printk("%s", __get_str(msg))
+);
+
+DEFINE_EVENT(usbssp_log_msg, usbssp_dbg_address,
+	TP_PROTO(struct va_format *vaf),
+	TP_ARGS(vaf)
+);
+
+DEFINE_EVENT(usbssp_log_msg, usbssp_dbg_context_change,
+	TP_PROTO(struct va_format *vaf),
+	TP_ARGS(vaf)
+);
+
+DEFINE_EVENT(usbssp_log_msg, usbssp_dbg_quirks,
+	TP_PROTO(struct va_format *vaf),
+	TP_ARGS(vaf)
+);
+
+DEFINE_EVENT(usbssp_log_msg, usbssp_dbg_reset_ep,
+	TP_PROTO(struct va_format *vaf),
+	TP_ARGS(vaf)
+);
+
+DEFINE_EVENT(usbssp_log_msg, usbssp_dbg_cancel_request,
+	TP_PROTO(struct va_format *vaf),
+	TP_ARGS(vaf)
+);
+
+DEFINE_EVENT(usbssp_log_msg, usbssp_dbg_init,
+	TP_PROTO(struct va_format *vaf),
+	TP_ARGS(vaf)
+);
+
+DEFINE_EVENT(usbssp_log_msg, usbssp_dbg_ring_expansion,
+	TP_PROTO(struct va_format *vaf),
+	TP_ARGS(vaf)
+);
+
+DECLARE_EVENT_CLASS(usbssp_log_ctx,
+	TP_PROTO(struct usbssp_udc *usbssp_data, struct usbssp_container_ctx *ctx,
+		 unsigned int ep_num),
+	TP_ARGS(usbssp_data, ctx, ep_num),
+	TP_STRUCT__entry(
+		__field(int, ctx_64)
+		__field(unsigned int, ctx_type)
+		__field(dma_addr_t, ctx_dma)
+		__field(u8 *, ctx_va)
+		__field(unsigned int, ctx_ep_num)
+		__field(int, slot_id)
+		__dynamic_array(u32, ctx_data,
+			((HCC_64BYTE_CONTEXT(usbssp_data->hcc_params) + 1) * 8) *
+			((ctx->type == USBSSP_CTX_TYPE_INPUT) + ep_num + 1))
+	),
+	TP_fast_assign(
+		__entry->ctx_64 = HCC_64BYTE_CONTEXT(usbssp_data->hcc_params);
+		__entry->ctx_type = ctx->type;
+		__entry->ctx_dma = ctx->dma;
+		__entry->ctx_va = ctx->bytes;
+		__entry->slot_id = usbssp_data->slot_id;
+		__entry->ctx_ep_num = ep_num;
+		memcpy(__get_dynamic_array(ctx_data), ctx->bytes,
+			((HCC_64BYTE_CONTEXT(usbssp_data->hcc_params) + 1) * 32) *
+			((ctx->type == USBSSP_CTX_TYPE_INPUT) + ep_num + 1));
+	),
+	TP_printk("\nctx_64=%d, ctx_type=%u, ctx_dma=@...x, ctx_va=@%p",
+			__entry->ctx_64, __entry->ctx_type,
+			(unsigned long long) __entry->ctx_dma, __entry->ctx_va
+	)
+);
+
+DEFINE_EVENT(usbssp_log_ctx, usbssp_address_ctx,
+	TP_PROTO(struct usbssp_udc *usbssp_data, struct usbssp_container_ctx *ctx,
+		 unsigned int ep_num),
+	TP_ARGS(usbssp_data, ctx, ep_num)
+);
+
+
+DECLARE_EVENT_CLASS(usbssp_log_trb,
+	TP_PROTO(struct usbssp_ring *ring, struct usbssp_generic_trb *trb),
+	TP_ARGS(ring, trb),
+	TP_STRUCT__entry(
+		__field(u32, type)
+		__field(u32, field0)
+		__field(u32, field1)
+		__field(u32, field2)
+		__field(u32, field3)
+	),
+	TP_fast_assign(
+		__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("%s: %s", usbssp_ring_type_string(__entry->type),
+			usbssp_decode_trb(__entry->field0, __entry->field1,
+					__entry->field2, __entry->field3)
+	)
+);
+
+DEFINE_EVENT(usbssp_log_trb, usbssp_handle_event,
+	TP_PROTO(struct usbssp_ring *ring, struct usbssp_generic_trb *trb),
+	TP_ARGS(ring, trb)
+);
+
+DEFINE_EVENT(usbssp_log_trb, usbssp_handle_command,
+	TP_PROTO(struct usbssp_ring *ring, struct usbssp_generic_trb *trb),
+	TP_ARGS(ring, trb)
+);
+
+DEFINE_EVENT(usbssp_log_trb, usbssp_handle_transfer,
+	TP_PROTO(struct usbssp_ring *ring, struct usbssp_generic_trb *trb),
+	TP_ARGS(ring, trb)
+);
+
+DEFINE_EVENT(usbssp_log_trb, usbssp_queue_trb,
+	TP_PROTO(struct usbssp_ring *ring, struct usbssp_generic_trb *trb),
+	TP_ARGS(ring, trb)
+);
+
+DEFINE_EVENT(usbssp_log_trb, usbssp_dbc_handle_event,
+	TP_PROTO(struct usbssp_ring *ring, struct usbssp_generic_trb *trb),
+	TP_ARGS(ring, trb)
+);
+
+DEFINE_EVENT(usbssp_log_trb, usbssp_dbc_handle_transfer,
+	TP_PROTO(struct usbssp_ring *ring, struct usbssp_generic_trb *trb),
+	TP_ARGS(ring, trb)
+);
+
+DEFINE_EVENT(usbssp_log_trb, usbssp_dbc_gadget_ep_queue,
+	TP_PROTO(struct usbssp_ring *ring, struct usbssp_generic_trb *trb),
+	TP_ARGS(ring, trb)
+);
+
+DECLARE_EVENT_CLASS(usbssp_log_priv_dev,
+	TP_PROTO(struct usbssp_device *priv_dev),
+	TP_ARGS(priv_dev),
+	TP_STRUCT__entry(
+		__field(struct usbssp_device *, priv_dev)
+		__field(struct usb_gadget *, gadget)
+		__field(unsigned long long, out_ctx)
+		__field(unsigned long long, in_ctx)
+		__field(u8, port_num)
+	),
+	TP_fast_assign(
+		__entry->priv_dev = priv_dev;
+		__entry->gadget = priv_dev->gadget;
+		__entry->in_ctx = (unsigned long long) priv_dev->in_ctx->dma;
+		__entry->out_ctx = (unsigned long long) priv_dev->out_ctx->dma;
+		__entry->port_num = priv_dev->port_num;
+	),
+	TP_printk("priv_dev %p gadget %p ctx %llx | %llx, port %d ",
+		__entry->priv_dev, __entry->gadget, __entry->in_ctx, __entry->out_ctx,
+		__entry->port_num
+	)
+);
+
+DEFINE_EVENT(usbssp_log_priv_dev, usbssp_alloc_priv_device,
+	TP_PROTO(struct usbssp_device *vdev),
+	TP_ARGS(vdev)
+);
+
+DEFINE_EVENT(usbssp_log_priv_dev, usbssp_free_priv_device,
+	TP_PROTO(struct usbssp_device *vdev),
+	TP_ARGS(vdev)
+);
+
+DEFINE_EVENT(usbssp_log_priv_dev, usbssp_setup_device,
+	TP_PROTO(struct usbssp_device *vdev),
+	TP_ARGS(vdev)
+);
+
+DEFINE_EVENT(usbssp_log_priv_dev, usbssp_setup_addressable_priv_device,
+	TP_PROTO(struct usbssp_device *vdev),
+	TP_ARGS(vdev)
+);
+
+DEFINE_EVENT(usbssp_log_priv_dev, usbssp_stop_device,
+	TP_PROTO(struct usbssp_device *vdev),
+	TP_ARGS(vdev)
+);
+
+DECLARE_EVENT_CLASS(usbssp_log_request,
+	TP_PROTO(struct usb_request *request),
+	TP_ARGS(request),
+	TP_STRUCT__entry(
+		__field(struct usb_request *, request)
+		__field(void *, buf)
+		__field(unsigned int, length)
+		__field(dma_addr_t, dma)
+		__field(struct scatterlist*, sg)
+		__field(unsigned int, num_sgs)
+		__field(unsigned int, num_mapped_sgs)
+		__field(unsigned int, stream_id)
+		__field(unsigned int, no_interrupt)
+		__field(unsigned int, zero)
+		__field(unsigned int, short_not_ok)
+		__field(unsigned int, dma_mapped)
+		__field(int, status)
+		__field(unsigned int, actual)
+	),
+	TP_fast_assign(
+		__entry->request = request;
+		__entry->buf = request->buf;
+		__entry->length = request->length;
+		__entry->dma = request->dma;
+		__entry->sg = request->sg;
+		__entry->num_sgs = request->num_sgs;
+		__entry->num_mapped_sgs = request->num_mapped_sgs;
+		__entry->stream_id = request->stream_id;
+		__entry->no_interrupt = request->no_interrupt;
+		__entry->zero = request->zero;
+		__entry->short_not_ok = request->short_not_ok;
+		__entry->dma_mapped = 0 /*request->dma_mapped*/;
+		__entry->status = request->status;
+		__entry->actual = request->actual;
+	),
+
+	TP_printk("req %p;  buf %p, len %d, dma %llx, sg %p, num_sg %d, num_m_sg %d,"
+			"stream_id %d, no_int %x, zero %x, short_not_ok %x, dma_mapped %x, "
+			"status %d, actual %d",
+			__entry->request,
+			__entry->buf, __entry->length, __entry->dma, __entry->sg,
+			__entry->num_sgs, __entry->num_mapped_sgs, __entry->stream_id,
+			__entry->no_interrupt, __entry->zero, __entry->short_not_ok,
+			__entry->dma_mapped, __entry->status, __entry->actual
+		)
+
+);
+
+DEFINE_EVENT(usbssp_log_request, usbssp_request_enqueue,
+	TP_PROTO(struct usb_request *request),
+	TP_ARGS(request)
+);
+
+DEFINE_EVENT(usbssp_log_request, usbssp_request_giveback,
+	TP_PROTO(struct usb_request *request),
+	TP_ARGS(request)
+);
+
+DEFINE_EVENT(usbssp_log_request, usbssp_request_dequeue,
+	TP_PROTO(struct usb_request *request),
+	TP_ARGS(request)
+);
+
+DEFINE_EVENT(usbssp_log_request, usbssp_alloc_request,
+	TP_PROTO(struct usb_request *request),
+	TP_ARGS(request)
+);
+
+DEFINE_EVENT(usbssp_log_request, usbssp_free_request,
+	TP_PROTO(struct usb_request *request),
+	TP_ARGS(request)
+);
+
+DECLARE_EVENT_CLASS(usbssp_log_ep_ctx,
+	TP_PROTO(struct usbssp_ep_ctx *ctx),
+	TP_ARGS(ctx),
+	TP_STRUCT__entry(
+		__field(u32, info)
+		__field(u32, info2)
+		__field(u64, deq)
+		__field(u32, tx_info)
+	),
+	TP_fast_assign(
+		__entry->info = le32_to_cpu(ctx->ep_info);
+		__entry->info2 = le32_to_cpu(ctx->ep_info2);
+		__entry->deq = le64_to_cpu(ctx->deq);
+		__entry->tx_info = le32_to_cpu(ctx->tx_info);
+	),
+	TP_printk("%s",  usbssp_decode_ep_context(__entry->info,
+		__entry->info2, __entry->deq, __entry->tx_info)
+	)
+);
+
+DEFINE_EVENT(usbssp_log_ep_ctx, usbssp_remove_request,
+	TP_PROTO(struct usbssp_ep_ctx *ctx),
+	TP_ARGS(ctx)
+);
+
+DEFINE_EVENT(usbssp_log_ep_ctx, usbssp_handle_cmd_stop_ep,
+	TP_PROTO(struct usbssp_ep_ctx *ctx),
+	TP_ARGS(ctx)
+);
+
+DEFINE_EVENT(usbssp_log_ep_ctx, usbssp_handle_cmd_set_deq_ep,
+	TP_PROTO(struct usbssp_ep_ctx *ctx),
+	TP_ARGS(ctx)
+);
+
+DEFINE_EVENT(usbssp_log_ep_ctx, usbssp_handle_cmd_reset_ep,
+	TP_PROTO(struct usbssp_ep_ctx *ctx),
+	TP_ARGS(ctx)
+);
+
+DEFINE_EVENT(usbssp_log_ep_ctx, usbssp_handle_cmd_config_ep,
+	TP_PROTO(struct usbssp_ep_ctx *ctx),
+	TP_ARGS(ctx)
+);
+
+DECLARE_EVENT_CLASS(usbssp_log_slot_ctx,
+	TP_PROTO(struct usbssp_slot_ctx *ctx),
+	TP_ARGS(ctx),
+	TP_STRUCT__entry(
+		__field(u32, info)
+		__field(u32, info2)
+		__field(u32, int_target)
+		__field(u32, state)
+	),
+	TP_fast_assign(
+		__entry->info = le32_to_cpu(ctx->dev_info);
+		__entry->info2 = le32_to_cpu(ctx->dev_info2);
+		__entry->int_target = le64_to_cpu(ctx->int_target);
+		__entry->state = le32_to_cpu(ctx->dev_state);
+	),
+	TP_printk("%s", usbssp_decode_slot_context(__entry->info,
+			__entry->info2, __entry->int_target,
+			__entry->state)
+	)
+);
+
+DEFINE_EVENT(usbssp_log_slot_ctx, usbssp_alloc_dev,
+	TP_PROTO(struct usbssp_slot_ctx *ctx),
+	TP_ARGS(ctx)
+);
+
+DEFINE_EVENT(usbssp_log_slot_ctx, usbssp_free_dev,
+	TP_PROTO(struct usbssp_slot_ctx *ctx),
+	TP_ARGS(ctx)
+);
+
+DEFINE_EVENT(usbssp_log_slot_ctx, usbssp_handle_cmd_disable_slot,
+	TP_PROTO(struct usbssp_slot_ctx *ctx),
+	TP_ARGS(ctx)
+);
+
+DEFINE_EVENT(usbssp_log_slot_ctx, usbssp_reset_device,
+	TP_PROTO(struct usbssp_slot_ctx *ctx),
+	TP_ARGS(ctx)
+);
+
+DEFINE_EVENT(usbssp_log_slot_ctx, usbssp_setup_device_slot,
+	TP_PROTO(struct usbssp_slot_ctx *ctx),
+	TP_ARGS(ctx)
+);
+
+DEFINE_EVENT(usbssp_log_slot_ctx, usbssp_handle_cmd_addr_dev,
+	TP_PROTO(struct usbssp_slot_ctx *ctx),
+	TP_ARGS(ctx)
+);
+
+DEFINE_EVENT(usbssp_log_slot_ctx, usbssp_handle_cmd_reset_dev,
+	TP_PROTO(struct usbssp_slot_ctx *ctx),
+	TP_ARGS(ctx)
+);
+
+DEFINE_EVENT(usbssp_log_slot_ctx, usbssp_handle_cmd_set_deq,
+	TP_PROTO(struct usbssp_slot_ctx *ctx),
+	TP_ARGS(ctx)
+);
+
+DEFINE_EVENT(usbssp_log_slot_ctx, usbssp_configure_endpoint,
+	TP_PROTO(struct usbssp_slot_ctx *ctx),
+	TP_ARGS(ctx)
+);
+
+DECLARE_EVENT_CLASS(usbssp_log_ring,
+	TP_PROTO(struct usbssp_ring *ring),
+	TP_ARGS(ring),
+	TP_STRUCT__entry(
+		__field(u32, type)
+		__field(void *, ring)
+		__field(dma_addr_t, enq)
+		__field(dma_addr_t, deq)
+		__field(dma_addr_t, enq_seg)
+		__field(dma_addr_t, deq_seg)
+		__field(unsigned int, num_segs)
+		__field(unsigned int, stream_id)
+		__field(unsigned int, cycle_state)
+		__field(unsigned int, num_trbs_free)
+		__field(unsigned int, bounce_buf_len)
+	),
+	TP_fast_assign(
+		__entry->ring = ring;
+		__entry->type = ring->type;
+		__entry->num_segs = ring->num_segs;
+		__entry->stream_id = ring->stream_id;
+		__entry->enq_seg = ring->enq_seg->dma;
+		__entry->deq_seg = ring->deq_seg->dma;
+		__entry->cycle_state = ring->cycle_state;
+		__entry->num_trbs_free = ring->num_trbs_free;
+		__entry->bounce_buf_len = ring->bounce_buf_len;
+		__entry->enq = usbssp_trb_virt_to_dma(ring->enq_seg, ring->enqueue);
+		__entry->deq = usbssp_trb_virt_to_dma(ring->deq_seg, ring->dequeue);
+	),
+	TP_printk("%s %p: enq %pad(%pad) deq %pad(%pad) segs %d stream %d free_trbs %d bounce %d cycle %d",
+			usbssp_ring_type_string(__entry->type), __entry->ring,
+			&__entry->enq, &__entry->enq_seg,
+			&__entry->deq, &__entry->deq_seg,
+			__entry->num_segs,
+			__entry->stream_id,
+			__entry->num_trbs_free,
+			__entry->bounce_buf_len,
+			__entry->cycle_state
+		)
+);
+
+DEFINE_EVENT(usbssp_log_ring, usbssp_ring_alloc,
+	TP_PROTO(struct usbssp_ring *ring),
+	TP_ARGS(ring)
+);
+
+DEFINE_EVENT(usbssp_log_ring, usbssp_ring_free,
+	TP_PROTO(struct usbssp_ring *ring),
+	TP_ARGS(ring)
+);
+
+DEFINE_EVENT(usbssp_log_ring, usbssp_ring_expansion,
+	TP_PROTO(struct usbssp_ring *ring),
+	TP_ARGS(ring)
+);
+
+DEFINE_EVENT(usbssp_log_ring, usbssp_inc_enq,
+	TP_PROTO(struct usbssp_ring *ring),
+	TP_ARGS(ring)
+);
+
+DEFINE_EVENT(usbssp_log_ring, usbssp_inc_deq,
+	TP_PROTO(struct usbssp_ring *ring),
+	TP_ARGS(ring)
+);
+
+DECLARE_EVENT_CLASS(usbssp_log_portsc,
+		TP_PROTO(u32 portnum, u32 portsc),
+		TP_ARGS(portnum, portsc),
+		TP_STRUCT__entry(
+				__field(u32, portnum)
+				__field(u32, portsc)
+				),
+		TP_fast_assign(
+				__entry->portnum = portnum;
+				__entry->portsc = portsc;
+				),
+		TP_printk("port-%d: %s",
+			__entry->portnum,
+			usbssp_decode_portsc(__entry->portsc)
+			)
+);
+
+DEFINE_EVENT(usbssp_log_portsc, usbssp_handle_port_status,
+		TP_PROTO(u32 portnum, u32 portsc),
+		TP_ARGS(portnum, portsc)
+);
+
+DEFINE_EVENT(usbssp_log_portsc, usbssp_get_port_status,
+	TP_PROTO(u32 portnum, u32 portsc),
+	TP_ARGS(portnum, portsc)
+);
+
+#endif /* __USBSSP_TRACE_H */
+/* this part must be outside header guard */
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE gadget-trace
+
+#include <trace/define_trace.h>
-- 
2.17.1

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