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linux_dsm_epyc7002/drivers/usb/cdns3/trace.h
Jayshri Pawar 54c4c69f0b usb: cdns3: Add streams support to cadence USB3 DRD driver 
This patch includes streams implementation changes.
The current changes has been validated on FPGA platform.

Enabled streams related interrupts only for streams capable endpoints.
Processed  PRIME and IOT interrupts related to streams capable endpoints.
Based on PRIME interrupt prime_flag is set and transfer is armed
otherwise just adding request to the deferred request queue.
For streams capable endpoints preparing TD with correct stream ID.

TDL calculation:
Updated tdl calculation based on controller versions.
1. For controller version DEV_VER_V2 :We have enabled USB_CONF2_EN_TDL_TRB
   bit in usb_conf2 register in DMULT configuration.
   This enables TDL calculation based on TRB, hence setting TDL in TRB.
2. For controller Version < DEV_VER_V2 : Writing TDL and STDL in ep_cmd
   register
3. For controller version > DEV_VER_V2 : Writing TDL in ep_tdl register.

Writing ERDY with correct Stream ID to ep_cmd register.
Added stream id related information to trace logs.

Signed-off-by: Rahul Kumar <kurahul@cadence.com>
Signed-off-by: Pawel Laszczak <pawell@cadence.com>
Signed-off-by: Jayshri Pawar <jpawar@cadence.com>
Signed-off-by: Felipe Balbi <balbi@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-01-15 10:39:22 +01:00

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/* SPDX-License-Identifier: GPL-2.0 */
/*
* USBSS device controller driver.
* Trace support header file.
*
* Copyright (C) 2018-2019 Cadence.
*
* Author: Pawel Laszczak <pawell@cadence.com>
*/
#undef TRACE_SYSTEM
#define TRACE_SYSTEM cdns3
#if !defined(__LINUX_CDNS3_TRACE) || defined(TRACE_HEADER_MULTI_READ)
#define __LINUX_CDNS3_TRACE
#include <linux/types.h>
#include <linux/tracepoint.h>
#include <asm/byteorder.h>
#include <linux/usb/ch9.h>
#include "core.h"
#include "gadget.h"
#include "debug.h"
#define CDNS3_MSG_MAX 500
TRACE_EVENT(cdns3_halt,
TP_PROTO(struct cdns3_endpoint *ep_priv, u8 halt, u8 flush),
TP_ARGS(ep_priv, halt, flush),
TP_STRUCT__entry(
__string(name, ep_priv->name)
__field(u8, halt)
__field(u8, flush)
),
TP_fast_assign(
__assign_str(name, ep_priv->name);
__entry->halt = halt;
__entry->flush = flush;
),
TP_printk("Halt %s for %s: %s", __entry->flush ? " and flush" : "",
__get_str(name), __entry->halt ? "set" : "cleared")
);
TRACE_EVENT(cdns3_wa1,
TP_PROTO(struct cdns3_endpoint *ep_priv, char *msg),
TP_ARGS(ep_priv, msg),
TP_STRUCT__entry(
__string(ep_name, ep_priv->name)
__string(msg, msg)
),
TP_fast_assign(
__assign_str(ep_name, ep_priv->name);
__assign_str(msg, msg);
),
TP_printk("WA1: %s %s", __get_str(ep_name), __get_str(msg))
);
TRACE_EVENT(cdns3_wa2,
TP_PROTO(struct cdns3_endpoint *ep_priv, char *msg),
TP_ARGS(ep_priv, msg),
TP_STRUCT__entry(
__string(ep_name, ep_priv->name)
__string(msg, msg)
),
TP_fast_assign(
__assign_str(ep_name, ep_priv->name);
__assign_str(msg, msg);
),
TP_printk("WA2: %s %s", __get_str(ep_name), __get_str(msg))
);
DECLARE_EVENT_CLASS(cdns3_log_doorbell,
TP_PROTO(const char *ep_name, u32 ep_trbaddr),
TP_ARGS(ep_name, ep_trbaddr),
TP_STRUCT__entry(
__string(name, ep_name)
__field(u32, ep_trbaddr)
),
TP_fast_assign(
__assign_str(name, ep_name);
__entry->ep_trbaddr = ep_trbaddr;
),
TP_printk("%s, ep_trbaddr %08x", __get_str(name),
__entry->ep_trbaddr)
);
DEFINE_EVENT(cdns3_log_doorbell, cdns3_doorbell_ep0,
TP_PROTO(const char *ep_name, u32 ep_trbaddr),
TP_ARGS(ep_name, ep_trbaddr)
);
DEFINE_EVENT(cdns3_log_doorbell, cdns3_doorbell_epx,
TP_PROTO(const char *ep_name, u32 ep_trbaddr),
TP_ARGS(ep_name, ep_trbaddr)
);
DECLARE_EVENT_CLASS(cdns3_log_usb_irq,
TP_PROTO(struct cdns3_device *priv_dev, u32 usb_ists),
TP_ARGS(priv_dev, usb_ists),
TP_STRUCT__entry(
__field(enum usb_device_speed, speed)
__field(u32, usb_ists)
__dynamic_array(char, str, CDNS3_MSG_MAX)
),
TP_fast_assign(
__entry->speed = cdns3_get_speed(priv_dev);
__entry->usb_ists = usb_ists;
),
TP_printk("%s", cdns3_decode_usb_irq(__get_str(str), __entry->speed,
__entry->usb_ists))
);
DEFINE_EVENT(cdns3_log_usb_irq, cdns3_usb_irq,
TP_PROTO(struct cdns3_device *priv_dev, u32 usb_ists),
TP_ARGS(priv_dev, usb_ists)
);
DECLARE_EVENT_CLASS(cdns3_log_epx_irq,
TP_PROTO(struct cdns3_device *priv_dev, struct cdns3_endpoint *priv_ep),
TP_ARGS(priv_dev, priv_ep),
TP_STRUCT__entry(
__string(ep_name, priv_ep->name)
__field(u32, ep_sts)
__field(u32, ep_traddr)
__field(u32, ep_last_sid)
__field(u32, use_streams)
__dynamic_array(char, str, CDNS3_MSG_MAX)
),
TP_fast_assign(
__assign_str(ep_name, priv_ep->name);
__entry->ep_sts = readl(&priv_dev->regs->ep_sts);
__entry->ep_traddr = readl(&priv_dev->regs->ep_traddr);
__entry->ep_last_sid = priv_ep->last_stream_id;
__entry->use_streams = priv_ep->use_streams;
),
TP_printk("%s, ep_traddr: %08x ep_last_sid: %08x use_streams: %d",
cdns3_decode_epx_irq(__get_str(str),
__get_str(ep_name),
__entry->ep_sts),
__entry->ep_traddr,
__entry->ep_last_sid,
__entry->use_streams)
);
DEFINE_EVENT(cdns3_log_epx_irq, cdns3_epx_irq,
TP_PROTO(struct cdns3_device *priv_dev, struct cdns3_endpoint *priv_ep),
TP_ARGS(priv_dev, priv_ep)
);
DECLARE_EVENT_CLASS(cdns3_log_ep0_irq,
TP_PROTO(struct cdns3_device *priv_dev, u32 ep_sts),
TP_ARGS(priv_dev, ep_sts),
TP_STRUCT__entry(
__field(int, ep_dir)
__field(u32, ep_sts)
__dynamic_array(char, str, CDNS3_MSG_MAX)
),
TP_fast_assign(
__entry->ep_dir = priv_dev->ep0_data_dir;
__entry->ep_sts = ep_sts;
),
TP_printk("%s", cdns3_decode_ep0_irq(__get_str(str),
__entry->ep_dir,
__entry->ep_sts))
);
DEFINE_EVENT(cdns3_log_ep0_irq, cdns3_ep0_irq,
TP_PROTO(struct cdns3_device *priv_dev, u32 ep_sts),
TP_ARGS(priv_dev, ep_sts)
);
DECLARE_EVENT_CLASS(cdns3_log_ctrl,
TP_PROTO(struct usb_ctrlrequest *ctrl),
TP_ARGS(ctrl),
TP_STRUCT__entry(
__field(u8, bRequestType)
__field(u8, bRequest)
__field(u16, wValue)
__field(u16, wIndex)
__field(u16, wLength)
__dynamic_array(char, str, CDNS3_MSG_MAX)
),
TP_fast_assign(
__entry->bRequestType = ctrl->bRequestType;
__entry->bRequest = ctrl->bRequest;
__entry->wValue = le16_to_cpu(ctrl->wValue);
__entry->wIndex = le16_to_cpu(ctrl->wIndex);
__entry->wLength = le16_to_cpu(ctrl->wLength);
),
TP_printk("%s", usb_decode_ctrl(__get_str(str), CDNS3_MSG_MAX,
__entry->bRequestType,
__entry->bRequest, __entry->wValue,
__entry->wIndex, __entry->wLength)
)
);
DEFINE_EVENT(cdns3_log_ctrl, cdns3_ctrl_req,
TP_PROTO(struct usb_ctrlrequest *ctrl),
TP_ARGS(ctrl)
);
DECLARE_EVENT_CLASS(cdns3_log_request,
TP_PROTO(struct cdns3_request *req),
TP_ARGS(req),
TP_STRUCT__entry(
__string(name, req->priv_ep->name)
__field(struct cdns3_request *, req)
__field(void *, buf)
__field(unsigned int, actual)
__field(unsigned int, length)
__field(int, status)
__field(int, zero)
__field(int, short_not_ok)
__field(int, no_interrupt)
__field(int, start_trb)
__field(int, end_trb)
__field(struct cdns3_trb *, start_trb_addr)
__field(int, flags)
__field(unsigned int, stream_id)
),
TP_fast_assign(
__assign_str(name, req->priv_ep->name);
__entry->req = req;
__entry->buf = req->request.buf;
__entry->actual = req->request.actual;
__entry->length = req->request.length;
__entry->status = req->request.status;
__entry->zero = req->request.zero;
__entry->short_not_ok = req->request.short_not_ok;
__entry->no_interrupt = req->request.no_interrupt;
__entry->start_trb = req->start_trb;
__entry->end_trb = req->end_trb;
__entry->start_trb_addr = req->trb;
__entry->flags = req->flags;
__entry->stream_id = req->request.stream_id;
),
TP_printk("%s: req: %p, req buff %p, length: %u/%u %s%s%s, status: %d,"
" trb: [start:%d, end:%d: virt addr %pa], flags:%x SID: %u",
__get_str(name), __entry->req, __entry->buf, __entry->actual,
__entry->length,
__entry->zero ? "Z" : "z",
__entry->short_not_ok ? "S" : "s",
__entry->no_interrupt ? "I" : "i",
__entry->status,
__entry->start_trb,
__entry->end_trb,
__entry->start_trb_addr,
__entry->flags,
__entry->stream_id
)
);
DEFINE_EVENT(cdns3_log_request, cdns3_alloc_request,
TP_PROTO(struct cdns3_request *req),
TP_ARGS(req)
);
DEFINE_EVENT(cdns3_log_request, cdns3_free_request,
TP_PROTO(struct cdns3_request *req),
TP_ARGS(req)
);
DEFINE_EVENT(cdns3_log_request, cdns3_ep_queue,
TP_PROTO(struct cdns3_request *req),
TP_ARGS(req)
);
DEFINE_EVENT(cdns3_log_request, cdns3_ep_dequeue,
TP_PROTO(struct cdns3_request *req),
TP_ARGS(req)
);
DEFINE_EVENT(cdns3_log_request, cdns3_gadget_giveback,
TP_PROTO(struct cdns3_request *req),
TP_ARGS(req)
);
TRACE_EVENT(cdns3_ep0_queue,
TP_PROTO(struct cdns3_device *dev_priv, struct usb_request *request),
TP_ARGS(dev_priv, request),
TP_STRUCT__entry(
__field(int, dir)
__field(int, length)
),
TP_fast_assign(
__entry->dir = dev_priv->ep0_data_dir;
__entry->length = request->length;
),
TP_printk("Queue to ep0%s length: %u", __entry->dir ? "in" : "out",
__entry->length)
);
DECLARE_EVENT_CLASS(cdns3_stream_split_transfer_len,
TP_PROTO(struct cdns3_request *req),
TP_ARGS(req),
TP_STRUCT__entry(
__string(name, req->priv_ep->name)
__field(struct cdns3_request *, req)
__field(unsigned int, length)
__field(unsigned int, actual)
__field(unsigned int, stream_id)
),
TP_fast_assign(
__assign_str(name, req->priv_ep->name);
__entry->req = req;
__entry->actual = req->request.length;
__entry->length = req->request.actual;
__entry->stream_id = req->request.stream_id;
),
TP_printk("%s: req: %p,request length: %u actual length: %u SID: %u",
__get_str(name), __entry->req, __entry->length,
__entry->actual, __entry->stream_id)
);
DEFINE_EVENT(cdns3_stream_split_transfer_len, cdns3_stream_transfer_split,
TP_PROTO(struct cdns3_request *req),
TP_ARGS(req)
);
DEFINE_EVENT(cdns3_stream_split_transfer_len,
cdns3_stream_transfer_split_next_part,
TP_PROTO(struct cdns3_request *req),
TP_ARGS(req)
);
DECLARE_EVENT_CLASS(cdns3_log_aligned_request,
TP_PROTO(struct cdns3_request *priv_req),
TP_ARGS(priv_req),
TP_STRUCT__entry(
__string(name, priv_req->priv_ep->name)
__field(struct usb_request *, req)
__field(void *, buf)
__field(dma_addr_t, dma)
__field(void *, aligned_buf)
__field(dma_addr_t, aligned_dma)
__field(u32, aligned_buf_size)
),
TP_fast_assign(
__assign_str(name, priv_req->priv_ep->name);
__entry->req = &priv_req->request;
__entry->buf = priv_req->request.buf;
__entry->dma = priv_req->request.dma;
__entry->aligned_buf = priv_req->aligned_buf->buf;
__entry->aligned_dma = priv_req->aligned_buf->dma;
__entry->aligned_buf_size = priv_req->aligned_buf->size;
),
TP_printk("%s: req: %p, req buf %p, dma %pad a_buf %p a_dma %pad, size %d",
__get_str(name), __entry->req, __entry->buf, &__entry->dma,
__entry->aligned_buf, &__entry->aligned_dma,
__entry->aligned_buf_size
)
);
DEFINE_EVENT(cdns3_log_aligned_request, cdns3_free_aligned_request,
TP_PROTO(struct cdns3_request *req),
TP_ARGS(req)
);
DEFINE_EVENT(cdns3_log_aligned_request, cdns3_prepare_aligned_request,
TP_PROTO(struct cdns3_request *req),
TP_ARGS(req)
);
DECLARE_EVENT_CLASS(cdns3_log_map_request,
TP_PROTO(struct cdns3_request *priv_req),
TP_ARGS(priv_req),
TP_STRUCT__entry(
__string(name, priv_req->priv_ep->name)
__field(struct usb_request *, req)
__field(void *, buf)
__field(dma_addr_t, dma)
),
TP_fast_assign(
__assign_str(name, priv_req->priv_ep->name);
__entry->req = &priv_req->request;
__entry->buf = priv_req->request.buf;
__entry->dma = priv_req->request.dma;
),
TP_printk("%s: req: %p, req buf %p, dma %p",
__get_str(name), __entry->req, __entry->buf, &__entry->dma
)
);
DEFINE_EVENT(cdns3_log_map_request, cdns3_map_request,
TP_PROTO(struct cdns3_request *req),
TP_ARGS(req)
);
DEFINE_EVENT(cdns3_log_map_request, cdns3_mapped_request,
TP_PROTO(struct cdns3_request *req),
TP_ARGS(req)
);
DECLARE_EVENT_CLASS(cdns3_log_trb,
TP_PROTO(struct cdns3_endpoint *priv_ep, struct cdns3_trb *trb),
TP_ARGS(priv_ep, trb),
TP_STRUCT__entry(
__string(name, priv_ep->name)
__field(struct cdns3_trb *, trb)
__field(u32, buffer)
__field(u32, length)
__field(u32, control)
__field(u32, type)
__field(unsigned int, last_stream_id)
),
TP_fast_assign(
__assign_str(name, priv_ep->name);
__entry->trb = trb;
__entry->buffer = trb->buffer;
__entry->length = trb->length;
__entry->control = trb->control;
__entry->type = usb_endpoint_type(priv_ep->endpoint.desc);
__entry->last_stream_id = priv_ep->last_stream_id;
),
TP_printk("%s: trb %p, dma buf: 0x%08x, size: %ld, burst: %d ctrl: 0x%08x (%s%s%s%s%s%s%s) SID:%lu LAST_SID:%u",
__get_str(name), __entry->trb, __entry->buffer,
TRB_LEN(__entry->length),
(u8)TRB_BURST_LEN_GET(__entry->length),
__entry->control,
__entry->control & TRB_CYCLE ? "C=1, " : "C=0, ",
__entry->control & TRB_TOGGLE ? "T=1, " : "T=0, ",
__entry->control & TRB_ISP ? "ISP, " : "",
__entry->control & TRB_FIFO_MODE ? "FIFO, " : "",
__entry->control & TRB_CHAIN ? "CHAIN, " : "",
__entry->control & TRB_IOC ? "IOC, " : "",
TRB_FIELD_TO_TYPE(__entry->control) == TRB_NORMAL ? "Normal" : "LINK",
TRB_FIELD_TO_STREAMID(__entry->control),
__entry->last_stream_id
)
);
DEFINE_EVENT(cdns3_log_trb, cdns3_prepare_trb,
TP_PROTO(struct cdns3_endpoint *priv_ep, struct cdns3_trb *trb),
TP_ARGS(priv_ep, trb)
);
DEFINE_EVENT(cdns3_log_trb, cdns3_complete_trb,
TP_PROTO(struct cdns3_endpoint *priv_ep, struct cdns3_trb *trb),
TP_ARGS(priv_ep, trb)
);
DECLARE_EVENT_CLASS(cdns3_log_ring,
TP_PROTO(struct cdns3_endpoint *priv_ep),
TP_ARGS(priv_ep),
TP_STRUCT__entry(
__dynamic_array(u8, ring, TRB_RING_SIZE)
__dynamic_array(u8, priv_ep, sizeof(struct cdns3_endpoint))
__dynamic_array(char, buffer,
(TRBS_PER_SEGMENT * 65) + CDNS3_MSG_MAX)
),
TP_fast_assign(
memcpy(__get_dynamic_array(priv_ep), priv_ep,
sizeof(struct cdns3_endpoint));
memcpy(__get_dynamic_array(ring), priv_ep->trb_pool,
TRB_RING_SIZE);
),
TP_printk("%s",
cdns3_dbg_ring((struct cdns3_endpoint *)__get_str(priv_ep),
(struct cdns3_trb *)__get_str(ring),
__get_str(buffer)))
);
DEFINE_EVENT(cdns3_log_ring, cdns3_ring,
TP_PROTO(struct cdns3_endpoint *priv_ep),
TP_ARGS(priv_ep)
);
DECLARE_EVENT_CLASS(cdns3_log_ep,
TP_PROTO(struct cdns3_endpoint *priv_ep),
TP_ARGS(priv_ep),
TP_STRUCT__entry(
__string(name, priv_ep->name)
__field(unsigned int, maxpacket)
__field(unsigned int, maxpacket_limit)
__field(unsigned int, max_streams)
__field(unsigned int, use_streams)
__field(unsigned int, maxburst)
__field(unsigned int, flags)
__field(unsigned int, dir)
__field(u8, enqueue)
__field(u8, dequeue)
),
TP_fast_assign(
__assign_str(name, priv_ep->name);
__entry->maxpacket = priv_ep->endpoint.maxpacket;
__entry->maxpacket_limit = priv_ep->endpoint.maxpacket_limit;
__entry->max_streams = priv_ep->endpoint.max_streams;
__entry->use_streams = priv_ep->use_streams;
__entry->maxburst = priv_ep->endpoint.maxburst;
__entry->flags = priv_ep->flags;
__entry->dir = priv_ep->dir;
__entry->enqueue = priv_ep->enqueue;
__entry->dequeue = priv_ep->dequeue;
),
TP_printk("%s: mps: %d/%d. streams: %d, stream enable: %d, burst: %d, "
"enq idx: %d, deq idx: %d, flags %s%s%s%s%s%s%s%s, dir: %s",
__get_str(name), __entry->maxpacket,
__entry->maxpacket_limit, __entry->max_streams,
__entry->use_streams,
__entry->maxburst, __entry->enqueue,
__entry->dequeue,
__entry->flags & EP_ENABLED ? "EN | " : "",
__entry->flags & EP_STALLED ? "STALLED | " : "",
__entry->flags & EP_WEDGE ? "WEDGE | " : "",
__entry->flags & EP_TRANSFER_STARTED ? "STARTED | " : "",
__entry->flags & EP_UPDATE_EP_TRBADDR ? "UPD TRB | " : "",
__entry->flags & EP_PENDING_REQUEST ? "REQ PEN | " : "",
__entry->flags & EP_RING_FULL ? "RING FULL |" : "",
__entry->flags & EP_CLAIMED ? "CLAIMED " : "",
__entry->dir ? "IN" : "OUT"
)
);
DEFINE_EVENT(cdns3_log_ep, cdns3_gadget_ep_enable,
TP_PROTO(struct cdns3_endpoint *priv_ep),
TP_ARGS(priv_ep)
);
DEFINE_EVENT(cdns3_log_ep, cdns3_gadget_ep_disable,
TP_PROTO(struct cdns3_endpoint *priv_ep),
TP_ARGS(priv_ep)
);
DECLARE_EVENT_CLASS(cdns3_log_request_handled,
TP_PROTO(struct cdns3_request *priv_req, int current_index,
int handled),
TP_ARGS(priv_req, current_index, handled),
TP_STRUCT__entry(
__field(struct cdns3_request *, priv_req)
__field(unsigned int, dma_position)
__field(unsigned int, handled)
__field(unsigned int, dequeue_idx)
__field(unsigned int, enqueue_idx)
__field(unsigned int, start_trb)
__field(unsigned int, end_trb)
),
TP_fast_assign(
__entry->priv_req = priv_req;
__entry->dma_position = current_index;
__entry->handled = handled;
__entry->dequeue_idx = priv_req->priv_ep->dequeue;
__entry->enqueue_idx = priv_req->priv_ep->enqueue;
__entry->start_trb = priv_req->start_trb;
__entry->end_trb = priv_req->end_trb;
),
TP_printk("Req: %p %s, DMA pos: %d, ep deq: %d, ep enq: %d,"
" start trb: %d, end trb: %d",
__entry->priv_req,
__entry->handled ? "handled" : "not handled",
__entry->dma_position, __entry->dequeue_idx,
__entry->enqueue_idx, __entry->start_trb,
__entry->end_trb
)
);
DEFINE_EVENT(cdns3_log_request_handled, cdns3_request_handled,
TP_PROTO(struct cdns3_request *priv_req, int current_index,
int handled),
TP_ARGS(priv_req, current_index, handled)
);
#endif /* __LINUX_CDNS3_TRACE */
/* this part must be outside header guard */
#undef TRACE_INCLUDE_PATH
#define TRACE_INCLUDE_PATH .
#undef TRACE_INCLUDE_FILE
#define TRACE_INCLUDE_FILE trace
#include <trace/define_trace.h>
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