From: Pawel Laszczak <pawell@cadence.com>
To: <gregkh@linuxfoundation.org>
Cc: <linux-kernel@vger.kernel.org>, <linux-usb@vger.kernel.org>,
<Daisy.Barrera@siriusxm.com>, <Cliff.Holden@siriusxm.com>,
<arnd@arndb.de>, <tony@atomide.com>, <jdelvare@suse.de>,
<neal_liu@aspeedtech.com>, <linus.walleij@linaro.org>,
<egtvedt@samfundet.no>, <biju.das.jz@bp.renesas.com>,
<herve.codina@bootlin.com>, Pawel Laszczak <pawell@cadence.com>
Subject: [PATCH 3/4] usb: cdns2: Add tracepoints for CDNS2 driver
Date: Thu, 16 Feb 2023 05:54:10 -0500 [thread overview]
Message-ID: <20230216105411.364157-4-pawell@cadence.com> (raw)
In-Reply-To: <20230216105411.364157-1-pawell@cadence.com>
Patch adds the series of tracepoints that can be used for
debugging issues detected in driver.
Signed-off-by: Pawel Laszczak <pawell@cadence.com>
---
drivers/usb/gadget/udc/cdns2/Makefile | 2 +
drivers/usb/gadget/udc/cdns2/cdns2-debug.h | 200 +++++++
drivers/usb/gadget/udc/cdns2/cdns2-ep0.c | 26 +-
drivers/usb/gadget/udc/cdns2/cdns2-gadget.c | 52 +-
drivers/usb/gadget/udc/cdns2/cdns2-trace.c | 11 +
drivers/usb/gadget/udc/cdns2/cdns2-trace.h | 609 ++++++++++++++++++++
6 files changed, 897 insertions(+), 3 deletions(-)
create mode 100644 drivers/usb/gadget/udc/cdns2/cdns2-debug.h
create mode 100644 drivers/usb/gadget/udc/cdns2/cdns2-trace.c
create mode 100644 drivers/usb/gadget/udc/cdns2/cdns2-trace.h
diff --git a/drivers/usb/gadget/udc/cdns2/Makefile b/drivers/usb/gadget/udc/cdns2/Makefile
index 7c746e6d53c2..a1ffbbe2e768 100644
--- a/drivers/usb/gadget/udc/cdns2/Makefile
+++ b/drivers/usb/gadget/udc/cdns2/Makefile
@@ -1,5 +1,7 @@
# SPDX-License-Identifier: GPL-2.0
# define_trace.h needs to know how to find our header
+CFLAGS_cdns2-trace.o := -I$(src)
obj-$(CONFIG_USB_CDNS2_UDC) += cdns2-udc-pci.o
cdns2-udc-pci-$(CONFIG_USB_CDNS2_UDC) += cdns2-pci.o cdns2-gadget.o cdns2-ep0.o
+cdns2-udc-pci-$(CONFIG_TRACING) += cdns2-trace.o
diff --git a/drivers/usb/gadget/udc/cdns2/cdns2-debug.h b/drivers/usb/gadget/udc/cdns2/cdns2-debug.h
new file mode 100644
index 000000000000..3a80f3fbdcd3
--- /dev/null
+++ b/drivers/usb/gadget/udc/cdns2/cdns2-debug.h
@@ -0,0 +1,200 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Cadence USBHS-DEV Driver.
+ * Debug header file.
+ *
+ * Copyright (C) 2023 Cadence.
+ *
+ * Author: Pawel Laszczak <pawell@cadence.com>
+ */
+
+#ifndef __LINUX_CDNS2_DEBUG
+#define __LINUX_CDNS2_DEBUG
+
+static inline const char *cdns2_decode_usb_irq(char *str, size_t size,
+ u8 usb_irq, u8 ext_irq)
+{
+ int ret;
+
+ ret = snprintf(str, size, "usbirq: 0x%02x - ", usb_irq);
+
+ if (usb_irq & USBIRQ_SOF)
+ ret += snprintf(str + ret, size - ret, "SOF ");
+ if (usb_irq & USBIRQ_SUTOK)
+ ret += snprintf(str + ret, size - ret, "SUTOK ");
+ if (usb_irq & USBIRQ_SUDAV)
+ ret += snprintf(str + ret, size - ret, "SETUP ");
+ if (usb_irq & USBIRQ_SUSPEND)
+ ret += snprintf(str + ret, size - ret, "Suspend ");
+ if (usb_irq & USBIRQ_URESET)
+ ret += snprintf(str + ret, size - ret, "Reset ");
+ if (usb_irq & USBIRQ_HSPEED)
+ ret += snprintf(str + ret, size - ret, "HS ");
+ if (usb_irq & USBIRQ_LPM)
+ ret += snprintf(str + ret, size - ret, "LPM ");
+
+ ret += snprintf(str + ret, size - ret, ", EXT: 0x%02x - ", ext_irq);
+
+ if (ext_irq & EXTIRQ_WAKEUP)
+ ret += snprintf(str + ret, size - ret, "Wakupe ");
+ if (ext_irq & EXTIRQ_VBUSFAULT_FALL)
+ ret += snprintf(str + ret, size - ret, "VBUS_FALL ");
+ if (ext_irq & EXTIRQ_VBUSFAULT_RISE)
+ ret += snprintf(str + ret, size - ret, "VBUS_RISE ");
+
+ if (ret >= size)
+ pr_info("CDNS2: buffer overflowed.\n");
+
+ return str;
+}
+
+static inline const char *cdns2_decode_dma_irq(char *str, size_t size,
+ u32 ep_ists, u32 ep_sts,
+ const char *ep_name)
+{
+ int ret;
+
+ ret = snprintf(str, size, "ISTS: %08x, %s: %08x ",
+ ep_ists, ep_name, ep_sts);
+
+ if (ep_sts & DMA_EP_STS_IOC)
+ ret += snprintf(str + ret, size - ret, "IOC ");
+ if (ep_sts & DMA_EP_STS_ISP)
+ ret += snprintf(str + ret, size - ret, "ISP ");
+ if (ep_sts & DMA_EP_STS_DESCMIS)
+ ret += snprintf(str + ret, size - ret, "DESCMIS ");
+ if (ep_sts & DMA_EP_STS_TRBERR)
+ ret += snprintf(str + ret, size - ret, "TRBERR ");
+ if (ep_sts & DMA_EP_STS_OUTSMM)
+ ret += snprintf(str + ret, size - ret, "OUTSMM ");
+ if (ep_sts & DMA_EP_STS_ISOERR)
+ ret += snprintf(str + ret, size - ret, "ISOERR ");
+ if (ep_sts & DMA_EP_STS_DBUSY)
+ ret += snprintf(str + ret, size - ret, "DBUSY ");
+ if (DMA_EP_STS_CCS(ep_sts))
+ ret += snprintf(str + ret, size - ret, "CCS ");
+
+ if (ret >= size)
+ pr_info("CDNS2: buffer overflowed.\n");
+
+ return str;
+}
+
+static inline const char *cdns2_decode_epx_irq(char *str, size_t size,
+ char *ep_name, u32 ep_ists,
+ u32 ep_sts)
+{
+ return cdns2_decode_dma_irq(str, size, ep_ists, ep_sts, ep_name);
+}
+
+static inline const char *cdns2_decode_ep0_irq(char *str, size_t size,
+ u32 ep_ists, u32 ep_sts,
+ int dir)
+{
+ return cdns2_decode_dma_irq(str, size, ep_ists, ep_sts,
+ dir ? "ep0IN" : "ep0OUT");
+}
+
+static inline const char *cdns2_raw_ring(struct cdns2_endpoint *pep,
+ struct cdns2_trb *trbs,
+ char *str, size_t size)
+{
+ struct cdns2_ring *ring = &pep->ring;
+ struct cdns2_trb *trb;
+ dma_addr_t dma;
+ int ret;
+ int i;
+
+ ret = snprintf(str, size, "\n\t\tTR for %s:", pep->name);
+
+ trb = &trbs[ring->dequeue];
+ dma = cdns2_trb_virt_to_dma(pep, trb);
+ ret += snprintf(str + ret, size - ret,
+ "\n\t\tRing deq index: %d, trb: V=%p, P=0x%pad\n",
+ ring->dequeue, trb, &dma);
+
+ trb = &trbs[ring->enqueue];
+ dma = cdns2_trb_virt_to_dma(pep, trb);
+ ret += snprintf(str + ret, size - ret,
+ "\t\tRing enq index: %d, trb: V=%p, P=0x%pad\n",
+ ring->enqueue, trb, &dma);
+
+ ret += snprintf(str + ret, size - ret,
+ "\t\tfree trbs: %d, CCS=%d, PCS=%d\n",
+ ring->free_trbs, ring->ccs, ring->pcs);
+
+ if (TRBS_PER_SEGMENT > 40) {
+ ret += snprintf(str + ret, size - ret,
+ "\t\tTransfer ring %d too big\n", TRBS_PER_SEGMENT);
+ return str;
+ }
+
+ dma = ring->dma;
+ for (i = 0; i < TRBS_PER_SEGMENT; ++i) {
+ trb = &trbs[i];
+ ret += snprintf(str + ret, size - ret,
+ "\t\t@%pad %08x %08x %08x\n", &dma,
+ le32_to_cpu(trb->buffer),
+ le32_to_cpu(trb->length),
+ le32_to_cpu(trb->control));
+ dma += sizeof(*trb);
+ }
+
+ if (ret >= size)
+ pr_info("CDNS2: buffer overflowed.\n");
+
+ return str;
+}
+
+static inline const char *cdns2_trb_type_string(u8 type)
+{
+ switch (type) {
+ case TRB_NORMAL:
+ return "Normal";
+ case TRB_LINK:
+ return "Link";
+ default:
+ return "UNKNOWN";
+ }
+}
+
+static inline const char *cdns2_decode_trb(char *str, size_t size, u32 flags,
+ u32 length, u32 buffer)
+{
+ int type = TRB_FIELD_TO_TYPE(flags);
+ int ret;
+
+ switch (type) {
+ case TRB_LINK:
+ ret = snprintf(str, size,
+ "LINK %08x type '%s' flags %c:%c:%c%c:%c",
+ buffer, cdns2_trb_type_string(type),
+ flags & TRB_CYCLE ? 'C' : 'c',
+ flags & TRB_TOGGLE ? 'T' : 't',
+ flags & TRB_CHAIN ? 'C' : 'c',
+ flags & TRB_CHAIN ? 'H' : 'h',
+ flags & TRB_IOC ? 'I' : 'i');
+ break;
+ case TRB_NORMAL:
+ ret = snprintf(str, size,
+ "type: '%s', Buffer: %08x, length: %ld, burst len: %ld, "
+ "flags %c:%c:%c%c:%c",
+ cdns2_trb_type_string(type),
+ buffer, TRB_LEN(length),
+ TRB_FIELD_TO_BURST(length),
+ flags & TRB_CYCLE ? 'C' : 'c',
+ flags & TRB_ISP ? 'I' : 'i',
+ flags & TRB_CHAIN ? 'C' : 'c',
+ flags & TRB_CHAIN ? 'H' : 'h',
+ flags & TRB_IOC ? 'I' : 'i');
+ break;
+ default:
+ ret = snprintf(str, size, "type '%s' -> raw %08x %08x %08x",
+ cdns2_trb_type_string(type),
+ buffer, length, flags);
+ }
+
+ return str;
+}
+
+#endif /*__LINUX_CDNS2_DEBUG*/
diff --git a/drivers/usb/gadget/udc/cdns2/cdns2-ep0.c b/drivers/usb/gadget/udc/cdns2/cdns2-ep0.c
index a8b606eed533..699e63cd56df 100644
--- a/drivers/usb/gadget/udc/cdns2/cdns2-ep0.c
+++ b/drivers/usb/gadget/udc/cdns2/cdns2-ep0.c
@@ -10,6 +10,7 @@
#include <linux/usb/composite.h>
#include "cdns2-gadget.h"
+#include "cdns2-trace.h"
static struct usb_endpoint_descriptor cdns2_gadget_ep0_desc = {
.bLength = USB_DT_ENDPOINT_SIZE,
@@ -59,6 +60,8 @@ static void cdns2_ep0_enqueue(struct cdns2_device *pdev, dma_addr_t dma_addr,
ring->trbs[1].control = 0;
}
+ trace_cdns2_queue_trb(pep, ring->trbs);
+
if (!pep->dir)
writel(0, &pdev->ep0_regs->rxbc);
@@ -67,6 +70,8 @@ static void cdns2_ep0_enqueue(struct cdns2_device *pdev, dma_addr_t dma_addr,
writel(DMA_EP_STS_TRBERR, ®s->ep_sts);
writel(pep->ring.dma, ®s->ep_traddr);
+ trace_cdns2_doorbell_ep0(pep, readl(®s->ep_traddr));
+
writel(DMA_EP_CMD_DRDY, ®s->ep_cmd);
}
@@ -129,6 +134,8 @@ static int cdns2_req_ep0_set_configuration(struct cdns2_device *pdev,
if (ret)
return ret;
+ trace_cdns2_device_state(config ? "configured" : "addressed");
+
if (!config)
usb_gadget_set_state(&pdev->gadget, USB_STATE_ADDRESS);
@@ -159,6 +166,8 @@ static int cdns2_req_ep0_set_address(struct cdns2_device *pdev, u32 addr)
usb_gadget_set_state(&pdev->gadget,
(addr ? USB_STATE_ADDRESS : USB_STATE_DEFAULT));
+ trace_cdns2_device_state(addr ? "addressed" : "default");
+
return 0;
}
@@ -388,8 +397,12 @@ void cdns2_handle_setup_packet(struct cdns2_device *pdev)
* If SETUP packet was modified while reading just simple ignore it.
* The new one will be handled latter.
*/
- if (cdns2_check_new_setup(pdev))
+ if (cdns2_check_new_setup(pdev)) {
+ trace_cdns2_ep0_setup("overridden");
return;
+ }
+
+ trace_cdns2_ctrl_req(ctrl);
if (!pdev->gadget_driver)
goto out;
@@ -434,8 +447,10 @@ void cdns2_handle_setup_packet(struct cdns2_device *pdev)
else
ret = cdns2_ep0_delegate_req(pdev);
- if (ret == USB_GADGET_DELAYED_STATUS)
+ if (ret == USB_GADGET_DELAYED_STATUS) {
+ trace_cdns2_ep0_status_stage("delayed");
return;
+ }
out:
if (ret < 0)
@@ -451,6 +466,7 @@ static void cdns2_transfer_completed(struct cdns2_device *pdev)
if (!list_empty(&pep->pending_list)) {
struct cdns2_request *preq;
+ trace_cdns2_complete_trb(pep, pep->ring.trbs);
preq = cdns2_next_preq(&pep->pending_list);
preq->request.actual =
@@ -467,6 +483,8 @@ void cdns2_handle_ep0_interrupt(struct cdns2_device *pdev, int dir)
cdns2_select_ep(pdev, dir);
+ trace_cdns2_ep0_irq(pdev);
+
ep_sts_reg = readl(&pdev->adma_regs->ep_sts);
writel(ep_sts_reg, &pdev->adma_regs->ep_sts);
@@ -533,8 +551,11 @@ static int cdns2_gadget_ep0_queue(struct usb_ep *ep,
preq = to_cdns2_request(request);
+ trace_cdns2_request_enqueue(preq);
+
/* Cancel the request if controller receive new SETUP packet. */
if (cdns2_check_new_setup(pdev)) {
+ trace_cdns2_ep0_setup("overridden");
spin_unlock_irqrestore(&pdev->lock, flags);
return -ECONNRESET;
}
@@ -559,6 +580,7 @@ static int cdns2_gadget_ep0_queue(struct usb_ep *ep,
}
if (!list_empty(&pep->pending_list)) {
+ trace_cdns2_ep0_setup("pending");
dev_err(pdev->dev,
"can't handle multiple requests for ep0\n");
spin_unlock_irqrestore(&pdev->lock, flags);
diff --git a/drivers/usb/gadget/udc/cdns2/cdns2-gadget.c b/drivers/usb/gadget/udc/cdns2/cdns2-gadget.c
index c1d5d2eab207..89e6269c9d4c 100644
--- a/drivers/usb/gadget/udc/cdns2/cdns2-gadget.c
+++ b/drivers/usb/gadget/udc/cdns2/cdns2-gadget.c
@@ -33,6 +33,7 @@
#include <linux/iopoll.h>
#include "cdns2-gadget.h"
+#include "cdns2-trace.h"
/**
* set_reg_bit_32 - set bit in given 32 bits register.
@@ -154,6 +155,8 @@ static void cdns2_ep_stall_flush(struct cdns2_endpoint *pep)
struct cdns2_device *pdev = pep->pdev;
int val;
+ trace_cdns2_ep_halt(pep, 1, 1);
+
writel(DMA_EP_CMD_DFLUSH, &pdev->adma_regs->ep_cmd);
/* Wait for DFLUSH cleared. */
@@ -238,6 +241,8 @@ void cdns2_gadget_giveback(struct cdns2_endpoint *pep,
/* All TRBs have finished, clear the counter. */
preq->finished_trb = 0;
+ trace_cdns2_request_giveback(preq);
+
if (request->complete) {
spin_unlock(&pdev->lock);
usb_gadget_giveback_request(&pep->endpoint, request);
@@ -252,6 +257,8 @@ static void cdns2_wa1_restore_cycle_bit(struct cdns2_endpoint *pep)
{
/* Work around for stale data address in TRB. */
if (pep->wa1_set) {
+ trace_cdns2_wa1(pep, "restore cycle bit");
+
pep->wa1_set = 0;
pep->wa1_trb_index = 0xFFFF;
if (pep->wa1_cycle_bit)
@@ -276,6 +283,7 @@ static int cdns2_wa1_update_guard(struct cdns2_endpoint *pep,
pep->wa1_set = 1;
pep->wa1_trb = trb;
pep->wa1_trb_index = pep->ring.enqueue;
+ trace_cdns2_wa1(pep, "set guard");
return 0;
}
}
@@ -351,6 +359,7 @@ static void cdns2_dbg_request_trbs(struct cdns2_endpoint *pep,
int i = 0;
while (i < num_trbs) {
+ trace_cdns2_queue_trb(pep, trb + i);
if (trb + i == link_trb) {
trb = pep->ring.trbs;
num_trbs = num_trbs - i;
@@ -729,6 +738,7 @@ static int cdns2_ep_run_transfer(struct cdns2_endpoint *pep,
if (pep->type == USB_ENDPOINT_XFER_ISOC && !pep->dir &&
!(pep->ep_state & EP_QUIRK_ISO_OUT_EN)) {
pep->ep_state |= EP_QUIRK_ISO_OUT_EN;
+ trace_cdns2_gadget_ep_enable(pep);
set_reg_bit_32(&pdev->adma_regs->ep_cfg,
DMA_EP_CFG_ENABLE);
@@ -741,10 +751,15 @@ static int cdns2_ep_run_transfer(struct cdns2_endpoint *pep,
}
if (!pep->wa1_set && !(pep->ep_state & EP_STALLED)) {
+ trace_cdns2_ring(pep);
+
/* Clearing TRBERR and DESCMIS before seting DRDY. */
writel(DMA_EP_STS_TRBERR | DMA_EP_STS_DESCMIS,
&pdev->adma_regs->ep_sts);
writel(DMA_EP_CMD_DRDY, &pdev->adma_regs->ep_cmd);
+
+ trace_cdns2_doorbell_epx(pep,
+ readl(&pdev->adma_regs->ep_traddr));
}
return 0;
@@ -866,6 +881,7 @@ static bool cdns2_trb_handled(struct cdns2_endpoint *pep,
}
finish:
+ trace_cdns2_request_handled(preq, current_index, handled);
return handled;
}
@@ -888,6 +904,7 @@ static void cdns2_transfer_completed(struct cdns2_device *pdev,
*/
while (TRB_FIELD_TO_TYPE(le32_to_cpu(trb->control)) == TRB_LINK &&
le32_to_cpu(trb->length)) {
+ trace_cdns2_complete_trb(pep, trb);
cdns2_ep_inc_deq(&pep->ring);
trb = pep->ring.trbs + pep->ring.dequeue;
}
@@ -905,6 +922,7 @@ static void cdns2_transfer_completed(struct cdns2_device *pdev,
request_handled = true;
trb = pep->ring.trbs + pep->ring.dequeue;
+ trace_cdns2_complete_trb(pep, trb);
if (pep->dir && pep->type == USB_ENDPOINT_XFER_ISOC)
/* For ISOC IN controller doens't update the
@@ -952,12 +970,17 @@ static void cdns2_rearm_transfer(struct cdns2_endpoint *pep, u8 rearm)
cdns2_wa1_restore_cycle_bit(pep);
if (rearm) {
+ trace_cdns2_ring(pep);
+
/* Cycle Bit must be updated before arming DMA. */
wmb();
writel(DMA_EP_CMD_DRDY, &pdev->adma_regs->ep_cmd);
cdns2_wakeup(pdev);
+
+ trace_cdns2_doorbell_epx(pep,
+ readl(&pdev->adma_regs->ep_traddr));
}
}
@@ -968,6 +991,8 @@ static void cdns2_handle_epx_interrupt(struct cdns2_endpoint *pep)
cdns2_select_ep(pdev, pep->endpoint.address);
+ trace_cdns2_epx_irq(pdev, pep);
+
ep_sts_reg = readl(&pdev->adma_regs->ep_sts);
writel(ep_sts_reg, &pdev->adma_regs->ep_sts);
@@ -1075,6 +1100,8 @@ static irqreturn_t cdns2_thread_usb_irq_handler(struct cdns2_device *pdev)
if (!ext_irq && !usb_irq)
return IRQ_NONE;
+ trace_cdns2_usb_irq(usb_irq, ext_irq);
+
if (ext_irq & EXTIRQ_WAKEUP) {
if (pdev->gadget_driver && pdev->gadget_driver->resume) {
spin_unlock(&pdev->lock);
@@ -1153,6 +1180,8 @@ static irqreturn_t cdns2_thread_irq_handler(int irq, void *data)
if (!dma_ep_ists)
goto unlock;
+ trace_cdns2_dma_ep_ists(dma_ep_ists);
+
/* Handle default endpoint OUT. */
if (dma_ep_ists & DMA_EP_ISTS_EP_OUT0)
cdns2_handle_ep0_interrupt(pdev, USB_DIR_OUT);
@@ -1339,6 +1368,8 @@ static int cdns2_ep_config(struct cdns2_endpoint *pep, bool enable)
if (enable)
writel(DMA_EP_CFG_ENABLE, &pdev->adma_regs->ep_cfg);
+ trace_cdns2_epx_hw_cfg(pdev, pep);
+
dev_dbg(pdev->dev, "Configure %s: with MPS: %08x, ep con: %02x\n",
pep->name, max_packet_size, ep_cfg);
@@ -1357,6 +1388,8 @@ struct usb_request *cdns2_gadget_ep_alloc_request(struct usb_ep *ep,
preq->pep = pep;
+ trace_cdns2_alloc_request(preq);
+
return &preq->request;
}
@@ -1365,6 +1398,7 @@ void cdns2_gadget_ep_free_request(struct usb_ep *ep,
{
struct cdns2_request *preq = to_cdns2_request(request);
+ trace_cdns2_free_request(preq);
kfree(preq);
}
@@ -1432,6 +1466,8 @@ static int cdns2_gadget_ep_enable(struct usb_ep *ep,
goto exit;
}
+ trace_cdns2_gadget_ep_enable(pep);
+
pep->ep_state &= ~(EP_STALLED | EP_STALL_PENDING |
EP_QUIRK_ISO_OUT_EN);
pep->ep_state |= EP_ENABLED | EP_UPDATE_EP_TRBADDR;
@@ -1470,6 +1506,8 @@ static int cdns2_gadget_ep_disable(struct usb_ep *ep)
spin_lock_irqsave(&pdev->lock, flags);
+ trace_cdns2_gadget_ep_disable(pep);
+
cdns2_select_ep(pdev, ep->desc->bEndpointAddress);
clear_reg_bit_32(&pdev->adma_regs->ep_cfg, DMA_EP_CFG_ENABLE);
@@ -1518,10 +1556,13 @@ static int cdns2_ep_enqueue(struct cdns2_endpoint *pep,
request->status = -EINPROGRESS;
ret = usb_gadget_map_request_by_dev(pdev->dev, request, pep->dir);
- if (ret)
+ if (ret) {
+ trace_cdns2_request_enqueue_error(preq);
return ret;
+ }
list_add_tail(&preq->list, &pep->deferred_list);
+ trace_cdns2_request_enqueue(preq);
if (!(pep->ep_state & EP_STALLED) && !(pep->ep_state & EP_STALL_PENDING))
cdns2_start_all_request(pdev, pep);
@@ -1610,6 +1651,7 @@ int cdns2_gadget_ep_dequeue(struct usb_ep *ep,
spin_lock_irqsave(&pep->pdev->lock, flags);
cur_preq = to_cdns2_request(request);
+ trace_cdns2_request_dequeue(cur_preq);
list_for_each_entry_safe(preq, preq_temp, &pep->pending_list, list) {
if (cur_preq == preq) {
@@ -1646,6 +1688,7 @@ int cdns2_gadget_ep_dequeue(struct usb_ep *ep,
& TRB_CYCLE) | TRB_CHAIN |
TRB_TYPE(TRB_LINK));
+ trace_cdns2_queue_trb(pep, link_trb);
link_trb = cdns2_next_trb(pep, link_trb);
}
@@ -1695,6 +1738,8 @@ int cdns2_halt_endpoint(struct cdns2_device *pdev,
}
}
+ trace_cdns2_ep_halt(pep, 0, 0);
+
/* Resets Sequence Number */
writeb(dir | pep->num, &pdev->epx_regs->endprst);
writeb(dir | ENDPRST_TOGRST | pep->num,
@@ -1713,6 +1758,7 @@ int cdns2_halt_endpoint(struct cdns2_device *pdev,
cdns2_start_all_request(pdev, pep);
} else {
+ trace_cdns2_ep_halt(pep, 1, 0);
set_reg_bit_8(conf, EPX_CON_STALL);
writeb(dir | pep->num, &pdev->epx_regs->endprst);
writeb(dir | ENDPRST_FIFORST | pep->num,
@@ -1736,6 +1782,7 @@ static int cdns2_gadget_ep_set_halt(struct usb_ep *ep, int value)
preq = cdns2_next_preq(&pep->pending_list);
if (value && preq) {
+ trace_cdns2_ep_busy_try_halt_again(pep);
ret = -EAGAIN;
goto done;
}
@@ -1899,6 +1946,8 @@ static int cdns2_gadget_pullup(struct usb_gadget *gadget, int is_on)
struct cdns2_device *pdev = gadget_to_cdns2_device(gadget);
unsigned long flags;
+ trace_cdns2_pullup(is_on);
+
/*
* Disable events handling while controller is being
* enabled/disabled.
@@ -2224,6 +2273,7 @@ int cdns2_gadget_suspend(struct cdns2_device *pdev)
spin_lock_irqsave(&pdev->lock, flags);
pdev->gadget.speed = USB_SPEED_UNKNOWN;
+ trace_cdns2_device_state("notattached");
usb_gadget_set_state(&pdev->gadget, USB_STATE_NOTATTACHED);
cdns2_enable_l1(pdev, 0);
diff --git a/drivers/usb/gadget/udc/cdns2/cdns2-trace.c b/drivers/usb/gadget/udc/cdns2/cdns2-trace.c
new file mode 100644
index 000000000000..de6b8cc3d071
--- /dev/null
+++ b/drivers/usb/gadget/udc/cdns2/cdns2-trace.c
@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * USBHS device controller driver Trace Support
+ *
+ * Copyright (C) 2023 Cadence.
+ *
+ * Author: Pawel Laszczak <pawell@cadence.com>
+ */
+
+#define CREATE_TRACE_POINTS
+#include "cdns2-trace.h"
diff --git a/drivers/usb/gadget/udc/cdns2/cdns2-trace.h b/drivers/usb/gadget/udc/cdns2/cdns2-trace.h
new file mode 100644
index 000000000000..097c7b4b58d5
--- /dev/null
+++ b/drivers/usb/gadget/udc/cdns2/cdns2-trace.h
@@ -0,0 +1,609 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * USBHS-DEV device controller driver.
+ * Trace support header file.
+ *
+ * Copyright (C) 2023 Cadence.
+ *
+ * Author: Pawel Laszczak <pawell@cadence.com>
+ */
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM cdns2-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 cdns2_dev
+
+#if !defined(__LINUX_CDNS2_TRACE) || defined(TRACE_HEADER_MULTI_READ)
+#define __LINUX_CDNS2_TRACE
+
+#include <linux/types.h>
+#include <linux/tracepoint.h>
+#include <asm/byteorder.h>
+#include <linux/usb/ch9.h>
+#include "cdns2-gadget.h"
+#include "cdns2-debug.h"
+
+#define CDNS2_MSG_MAX 500
+
+DECLARE_EVENT_CLASS(cdns2_log_enable_disable,
+ TP_PROTO(int set),
+ TP_ARGS(set),
+ TP_STRUCT__entry(
+ __field(int, set)
+ ),
+ TP_fast_assign(
+ __entry->set = set;
+ ),
+ TP_printk("%s", __entry->set ? "enabled" : "disabled")
+);
+
+DEFINE_EVENT(cdns2_log_enable_disable, cdns2_pullup,
+ TP_PROTO(int set),
+ TP_ARGS(set)
+);
+
+DEFINE_EVENT(cdns2_log_enable_disable, cdns2_lpm,
+ TP_PROTO(int set),
+ TP_ARGS(set)
+);
+
+DEFINE_EVENT(cdns2_log_enable_disable, cdns2_may_wakeup,
+ TP_PROTO(int set),
+ TP_ARGS(set)
+);
+
+DECLARE_EVENT_CLASS(cdns2_log_simple,
+ TP_PROTO(char *msg),
+ TP_ARGS(msg),
+ TP_STRUCT__entry(
+ __string(text, msg)
+ ),
+ TP_fast_assign(
+ __assign_str(text, msg);
+ ),
+ TP_printk("%s", __get_str(text))
+);
+
+DEFINE_EVENT(cdns2_log_simple, cdns2_no_room_on_ring,
+ TP_PROTO(char *msg),
+ TP_ARGS(msg)
+);
+
+DEFINE_EVENT(cdns2_log_simple, cdns2_ep0_status_stage,
+ TP_PROTO(char *msg),
+ TP_ARGS(msg)
+);
+
+DEFINE_EVENT(cdns2_log_simple, cdns2_ep0_set_config,
+ TP_PROTO(char *msg),
+ TP_ARGS(msg)
+);
+
+DEFINE_EVENT(cdns2_log_simple, cdns2_ep0_setup,
+ TP_PROTO(char *msg),
+ TP_ARGS(msg)
+);
+
+DEFINE_EVENT(cdns2_log_simple, cdns2_device_state,
+ TP_PROTO(char *msg),
+ TP_ARGS(msg)
+);
+
+TRACE_EVENT(cdns2_ep_halt,
+ TP_PROTO(struct cdns2_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(cdns2_wa1,
+ TP_PROTO(struct cdns2_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))
+);
+
+DECLARE_EVENT_CLASS(cdns2_log_doorbell,
+ TP_PROTO(struct cdns2_endpoint *pep, u32 ep_trbaddr),
+ TP_ARGS(pep, ep_trbaddr),
+ TP_STRUCT__entry(
+ __string(name, pep->num ? pep->name :
+ (pep->dir ? "ep0in" : "ep0out"))
+ __field(u32, ep_trbaddr)
+ ),
+ TP_fast_assign(
+ __assign_str(name, pep->name);
+ __entry->ep_trbaddr = ep_trbaddr;
+ ),
+ TP_printk("%s, ep_trbaddr %08x", __get_str(name),
+ __entry->ep_trbaddr)
+);
+
+DEFINE_EVENT(cdns2_log_doorbell, cdns2_doorbell_ep0,
+ TP_PROTO(struct cdns2_endpoint *pep, u32 ep_trbaddr),
+ TP_ARGS(pep, ep_trbaddr)
+);
+
+DEFINE_EVENT(cdns2_log_doorbell, cdns2_doorbell_epx,
+ TP_PROTO(struct cdns2_endpoint *pep, u32 ep_trbaddr),
+ TP_ARGS(pep, ep_trbaddr)
+);
+
+DECLARE_EVENT_CLASS(cdns2_log_usb_irq,
+ TP_PROTO(u32 usb_irq, u32 ext_irq),
+ TP_ARGS(usb_irq, ext_irq),
+ TP_STRUCT__entry(
+ __field(u32, usb_irq)
+ __field(u32, ext_irq)
+ __dynamic_array(char, str, CDNS2_MSG_MAX)
+ ),
+ TP_fast_assign(
+ __entry->usb_irq = usb_irq;
+ __entry->ext_irq = ext_irq;
+ ),
+ TP_printk("%s", cdns2_decode_usb_irq(__get_str(str), CDNS2_MSG_MAX,
+ __entry->usb_irq,
+ __entry->ext_irq))
+);
+
+DEFINE_EVENT(cdns2_log_usb_irq, cdns2_usb_irq,
+ TP_PROTO(u32 usb_irq, u32 ext_irq),
+ TP_ARGS(usb_irq, ext_irq)
+);
+
+TRACE_EVENT(cdns2_dma_ep_ists,
+ TP_PROTO(u32 dma_ep_ists),
+ TP_ARGS(dma_ep_ists),
+ TP_STRUCT__entry(
+ __field(u32, dma_ep_ists)
+ ),
+ TP_fast_assign(
+ __entry->dma_ep_ists = dma_ep_ists;
+ ),
+ TP_printk("OUT: 0x%04x, IN: 0x%04x", (u16)__entry->dma_ep_ists,
+ __entry->dma_ep_ists >> 16)
+);
+
+DECLARE_EVENT_CLASS(cdns2_log_epx_irq,
+ TP_PROTO(struct cdns2_device *pdev, struct cdns2_endpoint *pep),
+ TP_ARGS(pdev, pep),
+ TP_STRUCT__entry(
+ __string(ep_name, pep->name)
+ __field(u32, ep_sts)
+ __field(u32, ep_ists)
+ __field(u32, ep_traddr)
+ __dynamic_array(char, str, CDNS2_MSG_MAX)
+ ),
+ TP_fast_assign(
+ __assign_str(ep_name, pep->name);
+ __entry->ep_sts = readl(&pdev->adma_regs->ep_sts);
+ __entry->ep_ists = readl(&pdev->adma_regs->ep_ists);
+ __entry->ep_traddr = readl(&pdev->adma_regs->ep_traddr);
+ ),
+ TP_printk("%s, ep_traddr: %08x",
+ cdns2_decode_epx_irq(__get_str(str), CDNS2_MSG_MAX,
+ __get_str(ep_name),
+ __entry->ep_ists, __entry->ep_sts),
+ __entry->ep_traddr)
+);
+
+DEFINE_EVENT(cdns2_log_epx_irq, cdns2_epx_irq,
+ TP_PROTO(struct cdns2_device *pdev, struct cdns2_endpoint *pep),
+ TP_ARGS(pdev, pep)
+);
+
+DECLARE_EVENT_CLASS(cdns2_log_ep0_irq,
+ TP_PROTO(struct cdns2_device *pdev),
+ TP_ARGS(pdev),
+ TP_STRUCT__entry(
+ __field(int, ep_dir)
+ __field(u32, ep_ists)
+ __field(u32, ep_sts)
+ __dynamic_array(char, str, CDNS2_MSG_MAX)
+ ),
+ TP_fast_assign(
+ __entry->ep_dir = pdev->selected_ep;
+ __entry->ep_ists = readl(&pdev->adma_regs->ep_ists);
+ __entry->ep_sts = readl(&pdev->adma_regs->ep_sts);
+ ),
+ TP_printk("%s", cdns2_decode_ep0_irq(__get_str(str), CDNS2_MSG_MAX,
+ __entry->ep_ists, __entry->ep_sts,
+ __entry->ep_dir))
+);
+
+DEFINE_EVENT(cdns2_log_ep0_irq, cdns2_ep0_irq,
+ TP_PROTO(struct cdns2_device *pdev),
+ TP_ARGS(pdev)
+);
+
+DECLARE_EVENT_CLASS(cdns2_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, CDNS2_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), CDNS2_MSG_MAX,
+ __entry->bRequestType,
+ __entry->bRequest, __entry->wValue,
+ __entry->wIndex, __entry->wLength)
+ )
+);
+
+DEFINE_EVENT(cdns2_log_ctrl, cdns2_ctrl_req,
+ TP_PROTO(struct usb_ctrlrequest *ctrl),
+ TP_ARGS(ctrl)
+);
+
+DECLARE_EVENT_CLASS(cdns2_log_request,
+ TP_PROTO(struct cdns2_request *preq),
+ TP_ARGS(preq),
+ TP_STRUCT__entry(
+ __string(name, preq->pep->name)
+ __field(struct usb_request *, request)
+ __field(struct cdns2_request *, preq)
+ __field(void *, buf)
+ __field(unsigned int, actual)
+ __field(unsigned int, length)
+ __field(int, status)
+ __field(dma_addr_t, dma)
+ __field(int, zero)
+ __field(int, short_not_ok)
+ __field(int, no_interrupt)
+ __field(struct scatterlist*, sg)
+ __field(unsigned int, num_sgs)
+ __field(unsigned int, num_mapped_sgs)
+ __field(int, start_trb)
+ __field(int, end_trb)
+ ),
+ TP_fast_assign(
+ __assign_str(name, preq->pep->name);
+ __entry->request = &preq->request;
+ __entry->preq = preq;
+ __entry->buf = preq->request.buf;
+ __entry->actual = preq->request.actual;
+ __entry->length = preq->request.length;
+ __entry->status = preq->request.status;
+ __entry->dma = preq->request.dma;
+ __entry->zero = preq->request.zero;
+ __entry->short_not_ok = preq->request.short_not_ok;
+ __entry->no_interrupt = preq->request.no_interrupt;
+ __entry->sg = preq->request.sg;
+ __entry->num_sgs = preq->request.num_sgs;
+ __entry->num_mapped_sgs = preq->request.num_mapped_sgs;
+ __entry->start_trb = preq->start_trb;
+ __entry->end_trb = preq->end_trb;
+ ),
+ TP_printk("%s: req: %p, preq: %p, req buf: %p, length: %u/%u, status: %d,"
+ "buf dma: (%pad), %s%s%s, sg: %p, num_sgs: %d, num_m_sgs: %d,"
+ "trb: [start: %d, end: %d]",
+ __get_str(name), __entry->request, __entry->preq,
+ __entry->buf, __entry->actual, __entry->length,
+ __entry->status, &__entry->dma,
+ __entry->zero ? "Z" : "z",
+ __entry->short_not_ok ? "S" : "s",
+ __entry->no_interrupt ? "I" : "i",
+ __entry->sg, __entry->num_sgs, __entry->num_mapped_sgs,
+ __entry->start_trb,
+ __entry->end_trb
+ )
+);
+
+DEFINE_EVENT(cdns2_log_request, cdns2_request_enqueue,
+ TP_PROTO(struct cdns2_request *preq),
+ TP_ARGS(preq)
+);
+
+DEFINE_EVENT(cdns2_log_request, cdns2_request_enqueue_error,
+ TP_PROTO(struct cdns2_request *preq),
+ TP_ARGS(preq)
+);
+
+DEFINE_EVENT(cdns2_log_request, cdns2_alloc_request,
+ TP_PROTO(struct cdns2_request *preq),
+ TP_ARGS(preq)
+);
+
+DEFINE_EVENT(cdns2_log_request, cdns2_free_request,
+ TP_PROTO(struct cdns2_request *preq),
+ TP_ARGS(preq)
+);
+
+DEFINE_EVENT(cdns2_log_request, cdns2_ep_queue,
+ TP_PROTO(struct cdns2_request *preq),
+ TP_ARGS(preq)
+);
+
+DEFINE_EVENT(cdns2_log_request, cdns2_request_dequeue,
+ TP_PROTO(struct cdns2_request *preq),
+ TP_ARGS(preq)
+);
+
+DEFINE_EVENT(cdns2_log_request, cdns2_request_giveback,
+ TP_PROTO(struct cdns2_request *preq),
+ TP_ARGS(preq)
+);
+
+TRACE_EVENT(cdns2_ep0_enqueue,
+ TP_PROTO(struct cdns2_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->eps[0].dir;
+ __entry->length = request->length;
+ ),
+ TP_printk("Queue to ep0%s length: %u", __entry->dir ? "in" : "out",
+ __entry->length)
+);
+
+DECLARE_EVENT_CLASS(cdns2_log_map_request,
+ TP_PROTO(struct cdns2_request *priv_req),
+ TP_ARGS(priv_req),
+ TP_STRUCT__entry(
+ __string(name, priv_req->pep->name)
+ __field(struct usb_request *, req)
+ __field(void *, buf)
+ __field(dma_addr_t, dma)
+ ),
+ TP_fast_assign(
+ __assign_str(name, priv_req->pep->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(cdns2_log_map_request, cdns2_map_request,
+ TP_PROTO(struct cdns2_request *req),
+ TP_ARGS(req)
+);
+DEFINE_EVENT(cdns2_log_map_request, cdns2_mapped_request,
+ TP_PROTO(struct cdns2_request *req),
+ TP_ARGS(req)
+);
+
+DECLARE_EVENT_CLASS(cdns2_log_trb,
+ TP_PROTO(struct cdns2_endpoint *pep, struct cdns2_trb *trb),
+ TP_ARGS(pep, trb),
+ TP_STRUCT__entry(
+ __string(name, pep->name)
+ __field(struct cdns2_trb *, trb)
+ __field(u32, buffer)
+ __field(u32, length)
+ __field(u32, control)
+ __field(u32, type)
+ __dynamic_array(char, str, CDNS2_MSG_MAX)
+ ),
+ TP_fast_assign(
+ __assign_str(name, pep->name);
+ __entry->trb = trb;
+ __entry->buffer = le32_to_cpu(trb->buffer);
+ __entry->length = le32_to_cpu(trb->length);
+ __entry->control = le32_to_cpu(trb->control);
+ __entry->type = usb_endpoint_type(pep->endpoint.desc);
+ ),
+ TP_printk("%s: trb V: %p, dma buf: P: 0x%08x, %s",
+ __get_str(name), __entry->trb, __entry->buffer,
+ cdns2_decode_trb(__get_str(str), CDNS2_MSG_MAX,
+ __entry->control, __entry->length,
+ __entry->buffer))
+);
+
+DEFINE_EVENT(cdns2_log_trb, cdns2_queue_trb,
+ TP_PROTO(struct cdns2_endpoint *pep, struct cdns2_trb *trb),
+ TP_ARGS(pep, trb)
+);
+
+DEFINE_EVENT(cdns2_log_trb, cdns2_complete_trb,
+ TP_PROTO(struct cdns2_endpoint *pep, struct cdns2_trb *trb),
+ TP_ARGS(pep, trb)
+);
+
+DECLARE_EVENT_CLASS(cdns2_log_ring,
+ TP_PROTO(struct cdns2_endpoint *pep),
+ TP_ARGS(pep),
+ TP_STRUCT__entry(
+ __dynamic_array(u8, tr_seg, TR_SEG_SIZE)
+ __dynamic_array(u8, pep, sizeof(struct cdns2_endpoint))
+ __dynamic_array(char, buffer,
+ (TRBS_PER_SEGMENT * 65) + CDNS2_MSG_MAX)
+ ),
+ TP_fast_assign(
+ memcpy(__get_dynamic_array(pep), pep,
+ sizeof(struct cdns2_endpoint));
+ memcpy(__get_dynamic_array(tr_seg), pep->ring.trbs,
+ TR_SEG_SIZE);
+ ),
+
+ TP_printk("%s",
+ cdns2_raw_ring((struct cdns2_endpoint *)__get_str(pep),
+ (struct cdns2_trb *)__get_str(tr_seg),
+ __get_str(buffer),
+ (TRBS_PER_SEGMENT * 65) + CDNS2_MSG_MAX))
+);
+
+DEFINE_EVENT(cdns2_log_ring, cdns2_ring,
+ TP_PROTO(struct cdns2_endpoint *pep),
+ TP_ARGS(pep)
+);
+
+DECLARE_EVENT_CLASS(cdns2_log_ep,
+ TP_PROTO(struct cdns2_endpoint *pep),
+ TP_ARGS(pep),
+ TP_STRUCT__entry(
+ __string(name, pep->name)
+ __field(unsigned int, maxpacket)
+ __field(unsigned int, maxpacket_limit)
+ __field(unsigned int, flags)
+ __field(unsigned int, dir)
+ __field(u8, enqueue)
+ __field(u8, dequeue)
+ ),
+ TP_fast_assign(
+ __assign_str(name, pep->name);
+ __entry->maxpacket = pep->endpoint.maxpacket;
+ __entry->maxpacket_limit = pep->endpoint.maxpacket_limit;
+ __entry->flags = pep->ep_state;
+ __entry->dir = pep->dir;
+ __entry->enqueue = pep->ring.enqueue;
+ __entry->dequeue = pep->ring.dequeue;
+ ),
+ TP_printk("%s: mps: %d/%d, enq idx: %d, deq idx: %d, "
+ "flags: %s%s%s%s%s, dir: %s",
+ __get_str(name), __entry->maxpacket,
+ __entry->maxpacket_limit, __entry->enqueue,
+ __entry->dequeue,
+ __entry->flags & EP_ENABLED ? "EN | " : "",
+ __entry->flags & EP_STALLED ? "STALLED | " : "",
+ __entry->flags & EP_WEDGE ? "WEDGE | " : "",
+ __entry->flags & EP_UPDATE_EP_TRBADDR ? "UPD TRB | " : "",
+ __entry->flags & EP_RING_FULL ? "RING FULL |" : "",
+ __entry->dir ? "IN" : "OUT"
+ )
+);
+
+DEFINE_EVENT(cdns2_log_ep, cdns2_gadget_ep_enable,
+ TP_PROTO(struct cdns2_endpoint *pep),
+ TP_ARGS(pep)
+);
+
+DEFINE_EVENT(cdns2_log_ep, cdns2_gadget_ep_disable,
+ TP_PROTO(struct cdns2_endpoint *pep),
+ TP_ARGS(pep)
+);
+
+DEFINE_EVENT(cdns2_log_ep, cdns2_iso_out_ep_disable,
+ TP_PROTO(struct cdns2_endpoint *pep),
+ TP_ARGS(pep)
+);
+
+DEFINE_EVENT(cdns2_log_ep, cdns2_ep_busy_try_halt_again,
+ TP_PROTO(struct cdns2_endpoint *pep),
+ TP_ARGS(pep)
+);
+
+DECLARE_EVENT_CLASS(cdns2_log_request_handled,
+ TP_PROTO(struct cdns2_request *priv_req, int current_index,
+ int handled),
+ TP_ARGS(priv_req, current_index, handled),
+ TP_STRUCT__entry(
+ __field(struct cdns2_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->pep->ring.dequeue;
+ __entry->enqueue_idx = priv_req->pep->ring.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(cdns2_log_request_handled, cdns2_request_handled,
+ TP_PROTO(struct cdns2_request *priv_req, int current_index,
+ int handled),
+ TP_ARGS(priv_req, current_index, handled)
+);
+
+DECLARE_EVENT_CLASS(cdns2_log_epx_reg_config,
+ TP_PROTO(struct cdns2_device *pdev, struct cdns2_endpoint *pep),
+ TP_ARGS(pdev, pep),
+ TP_STRUCT__entry(
+ __string(ep_name, pep->name)
+ __field(u8, burst_size)
+ __field(__le16, maxpack_reg)
+ __field(__u8, con_reg)
+ __field(u32, ep_sel_reg)
+ __field(u32, ep_sts_en_reg)
+ __field(u32, ep_cfg_reg)
+ ),
+ TP_fast_assign(
+ __assign_str(ep_name, pep->name);
+ __entry->burst_size = pep->trb_burst_size;
+ __entry->maxpack_reg = pep->dir ? readw(&pdev->epx_regs->txmaxpack[pep->num - 1]) :
+ readw(&pdev->epx_regs->rxmaxpack[pep->num - 1]);
+ __entry->con_reg = pep->dir ? readb(&pdev->epx_regs->ep[pep->num - 1].txcon) :
+ readb(&pdev->epx_regs->ep[pep->num - 1].rxcon);
+ __entry->ep_sel_reg = readl(&pdev->adma_regs->ep_sel);
+ __entry->ep_sts_en_reg = readl(&pdev->adma_regs->ep_sts_en);
+ __entry->ep_cfg_reg = readl(&pdev->adma_regs->ep_cfg);
+ ),
+
+ TP_printk("%s, maxpack: %d, con: %02x, dma_ep_sel: %08x, dma_ep_sts_en: %08x"
+ " dma_ep_cfg %08x",
+ __get_str(ep_name), __entry->maxpack_reg, __entry->con_reg,
+ __entry->ep_sel_reg, __entry->ep_sts_en_reg,
+ __entry->ep_cfg_reg
+ )
+);
+
+DEFINE_EVENT(cdns2_log_epx_reg_config, cdns2_epx_hw_cfg,
+ TP_PROTO(struct cdns2_device *pdev, struct cdns2_endpoint *pep),
+ TP_ARGS(pdev, pep)
+);
+
+#endif /* __LINUX_CDNS2_TRACE */
+
+/* This part must be outside header guard. */
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+
+#undef TRACE_INCLUDE_FILE
+#define TRACE_INCLUDE_FILE cdns2-trace
+
+#include <trace/define_trace.h>
--
2.25.1
next prev parent reply other threads:[~2023-02-16 10:55 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-02-16 10:54 [PATCH 0/4] Introduced new Cadence USBHS Driver Pawel Laszczak
2023-02-16 10:54 ` [PATCH 1/4] usb: cdns2: Device side header file for CDNS2 driver Pawel Laszczak
2023-02-16 11:24 ` Greg KH
2023-02-16 11:53 ` Pawel Laszczak
2023-02-16 10:54 ` [PATCH 2/4] usb: cdns2: Add main part of Cadence USBHS driver Pawel Laszczak
2023-02-16 11:26 ` Greg KH
2023-02-17 7:12 ` kernel test robot
2023-02-16 10:54 ` Pawel Laszczak [this message]
2023-02-16 11:22 ` [PATCH 3/4] usb: cdns2: Add tracepoints for CDNS2 driver Greg KH
2023-02-16 11:36 ` Pawel Laszczak
2023-02-18 20:19 ` kernel test robot
2023-02-16 10:54 ` [PATCH 4/4] MAINTAINERS: add Cadence USBHS driver entry Pawel Laszczak
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20230216105411.364157-4-pawell@cadence.com \
--to=pawell@cadence.com \
--cc=Cliff.Holden@siriusxm.com \
--cc=Daisy.Barrera@siriusxm.com \
--cc=arnd@arndb.de \
--cc=biju.das.jz@bp.renesas.com \
--cc=egtvedt@samfundet.no \
--cc=gregkh@linuxfoundation.org \
--cc=herve.codina@bootlin.com \
--cc=jdelvare@suse.de \
--cc=linus.walleij@linaro.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-usb@vger.kernel.org \
--cc=neal_liu@aspeedtech.com \
--cc=tony@atomide.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.