summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
Diffstat
-rw-r--r--Documentation/devicetree/bindings/usb/realtek,rts5411.yaml1
-rw-r--r--drivers/thunderbolt/debugfs.c5
-rw-r--r--drivers/usb/Makefile1
-rw-r--r--drivers/usb/chipidea/core.c8
-rw-r--r--drivers/usb/chipidea/ulpi.c5
-rw-r--r--drivers/usb/class/cdc-wdm.c4
-rw-r--r--drivers/usb/core/hcd.c12
-rw-r--r--drivers/usb/host/xhci-pci.c7
-rw-r--r--drivers/usb/host/xhci-ring.c59
-rw-r--r--drivers/usb/host/xhci.h1
-rw-r--r--drivers/usb/storage/alauda.c9
-rw-r--r--drivers/usb/typec/tcpm/tcpm.c5
-rw-r--r--drivers/usb/typec/ucsi/ucsi.c7
-rw-r--r--drivers/usb/typec/ucsi/ucsi_glink.c2
-rw-r--r--include/linux/kcov.h47
15 files changed, 131 insertions, 42 deletions
diff --git a/Documentation/devicetree/bindings/usb/realtek,rts5411.yaml b/Documentation/devicetree/bindings/usb/realtek,rts5411.yaml
index 0874fc21f66f..6577a61cc075 100644
--- a/Documentation/devicetree/bindings/usb/realtek,rts5411.yaml
+++ b/Documentation/devicetree/bindings/usb/realtek,rts5411.yaml
@@ -65,6 +65,7 @@ patternProperties:
description: The hard wired USB devices
type: object
$ref: /schemas/usb/usb-device.yaml
+ additionalProperties: true
required:
- peer-hub
diff --git a/drivers/thunderbolt/debugfs.c b/drivers/thunderbolt/debugfs.c
index 193e9dfc983b..70b52aac3d97 100644
--- a/drivers/thunderbolt/debugfs.c
+++ b/drivers/thunderbolt/debugfs.c
@@ -943,8 +943,9 @@ static void margining_port_init(struct tb_port *port)
debugfs_create_file("run", 0600, dir, port, &margining_run_fops);
debugfs_create_file("results", 0600, dir, port, &margining_results_fops);
debugfs_create_file("test", 0600, dir, port, &margining_test_fops);
- if (independent_voltage_margins(usb4) ||
- (supports_time(usb4) && independent_time_margins(usb4)))
+ if (independent_voltage_margins(usb4) == USB4_MARGIN_CAP_0_VOLTAGE_HL ||
+ (supports_time(usb4) &&
+ independent_time_margins(usb4) == USB4_MARGIN_CAP_1_TIME_LR))
debugfs_create_file("margin", 0600, dir, port, &margining_margin_fops);
}
diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile
index 3a9a0dd4be70..949eca0adebe 100644
--- a/drivers/usb/Makefile
+++ b/drivers/usb/Makefile
@@ -35,6 +35,7 @@ obj-$(CONFIG_USB_R8A66597_HCD) += host/
obj-$(CONFIG_USB_FSL_USB2) += host/
obj-$(CONFIG_USB_FOTG210_HCD) += host/
obj-$(CONFIG_USB_MAX3421_HCD) += host/
+obj-$(CONFIG_USB_XEN_HCD) += host/
obj-$(CONFIG_USB_C67X00_HCD) += c67x00/
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index bada13f704b6..835bf2428dc6 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -1084,6 +1084,10 @@ static int ci_hdrc_probe(struct platform_device *pdev)
return -ENODEV;
}
+ ret = ci_ulpi_init(ci);
+ if (ret)
+ return ret;
+
if (ci->platdata->phy) {
ci->phy = ci->platdata->phy;
} else if (ci->platdata->usb_phy) {
@@ -1138,10 +1142,6 @@ static int ci_hdrc_probe(struct platform_device *pdev)
goto ulpi_exit;
}
- ret = ci_ulpi_init(ci);
- if (ret)
- return ret;
-
ci->hw_bank.phys = res->start;
ci->irq = platform_get_irq(pdev, 0);
diff --git a/drivers/usb/chipidea/ulpi.c b/drivers/usb/chipidea/ulpi.c
index 89fb51e2c3de..dfec07e8ae1d 100644
--- a/drivers/usb/chipidea/ulpi.c
+++ b/drivers/usb/chipidea/ulpi.c
@@ -68,6 +68,11 @@ int ci_ulpi_init(struct ci_hdrc *ci)
if (ci->platdata->phy_mode != USBPHY_INTERFACE_MODE_ULPI)
return 0;
+ /*
+ * Set PORTSC correctly so we can read/write ULPI registers for
+ * identification purposes
+ */
+ hw_phymode_configure(ci);
ci->ulpi_ops.read = ci_ulpi_read;
ci->ulpi_ops.write = ci_ulpi_write;
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c
index c553decb5461..6830be4419e2 100644
--- a/drivers/usb/class/cdc-wdm.c
+++ b/drivers/usb/class/cdc-wdm.c
@@ -266,14 +266,14 @@ static void wdm_int_callback(struct urb *urb)
dev_err(&desc->intf->dev, "Stall on int endpoint\n");
goto sw; /* halt is cleared in work */
default:
- dev_err(&desc->intf->dev,
+ dev_err_ratelimited(&desc->intf->dev,
"nonzero urb status received: %d\n", status);
break;
}
}
if (urb->actual_length < sizeof(struct usb_cdc_notification)) {
- dev_err(&desc->intf->dev, "wdm_int_callback - %d bytes\n",
+ dev_err_ratelimited(&desc->intf->dev, "wdm_int_callback - %d bytes\n",
urb->actual_length);
goto exit;
}
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index e3366f4d82b9..1ff7d901fede 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -1623,6 +1623,7 @@ static void __usb_hcd_giveback_urb(struct urb *urb)
struct usb_hcd *hcd = bus_to_hcd(urb->dev->bus);
struct usb_anchor *anchor = urb->anchor;
int status = urb->unlinked;
+ unsigned long flags;
urb->hcpriv = NULL;
if (unlikely((urb->transfer_flags & URB_SHORT_NOT_OK) &&
@@ -1640,13 +1641,14 @@ static void __usb_hcd_giveback_urb(struct urb *urb)
/* pass ownership to the completion handler */
urb->status = status;
/*
- * This function can be called in task context inside another remote
- * coverage collection section, but kcov doesn't support that kind of
- * recursion yet. Only collect coverage in softirq context for now.
+ * Only collect coverage in the softirq context and disable interrupts
+ * to avoid scenarios with nested remote coverage collection sections
+ * that KCOV does not support.
+ * See the comment next to kcov_remote_start_usb_softirq() for details.
*/
- kcov_remote_start_usb_softirq((u64)urb->dev->bus->busnum);
+ flags = kcov_remote_start_usb_softirq((u64)urb->dev->bus->busnum);
urb->complete(urb);
- kcov_remote_stop_softirq();
+ kcov_remote_stop_softirq(flags);
usb_anchor_resume_wakeups(anchor);
atomic_dec(&urb->use_count);
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index c040d816e626..05881153883e 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -36,6 +36,7 @@
#define PCI_VENDOR_ID_ETRON 0x1b6f
#define PCI_DEVICE_ID_EJ168 0x7023
+#define PCI_DEVICE_ID_EJ188 0x7052
#define PCI_DEVICE_ID_INTEL_LYNXPOINT_XHCI 0x8c31
#define PCI_DEVICE_ID_INTEL_LYNXPOINT_LP_XHCI 0x9c31
@@ -395,6 +396,12 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
xhci->quirks |= XHCI_RESET_ON_RESUME;
xhci->quirks |= XHCI_BROKEN_STREAMS;
}
+ if (pdev->vendor == PCI_VENDOR_ID_ETRON &&
+ pdev->device == PCI_DEVICE_ID_EJ188) {
+ xhci->quirks |= XHCI_RESET_ON_RESUME;
+ xhci->quirks |= XHCI_BROKEN_STREAMS;
+ }
+
if (pdev->vendor == PCI_VENDOR_ID_RENESAS &&
pdev->device == 0x0014) {
xhci->quirks |= XHCI_ZERO_64B_REGS;
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 9e90d2952760..fd0cde3d1569 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -1031,13 +1031,27 @@ static int xhci_invalidate_cancelled_tds(struct xhci_virt_ep *ep)
break;
case TD_DIRTY: /* TD is cached, clear it */
case TD_HALTED:
+ case TD_CLEARING_CACHE_DEFERRED:
+ if (cached_td) {
+ if (cached_td->urb->stream_id != td->urb->stream_id) {
+ /* Multiple streams case, defer move dq */
+ xhci_dbg(xhci,
+ "Move dq deferred: stream %u URB %p\n",
+ td->urb->stream_id, td->urb);
+ td->cancel_status = TD_CLEARING_CACHE_DEFERRED;
+ break;
+ }
+
+ /* Should never happen, but clear the TD if it does */
+ xhci_warn(xhci,
+ "Found multiple active URBs %p and %p in stream %u?\n",
+ td->urb, cached_td->urb,
+ td->urb->stream_id);
+ td_to_noop(xhci, ring, cached_td, false);
+ cached_td->cancel_status = TD_CLEARED;
+ }
+
td->cancel_status = TD_CLEARING_CACHE;
- if (cached_td)
- /* FIXME stream case, several stopped rings */
- xhci_dbg(xhci,
- "Move dq past stream %u URB %p instead of stream %u URB %p\n",
- td->urb->stream_id, td->urb,
- cached_td->urb->stream_id, cached_td->urb);
cached_td = td;
break;
}
@@ -1057,10 +1071,16 @@ static int xhci_invalidate_cancelled_tds(struct xhci_virt_ep *ep)
if (err) {
/* Failed to move past cached td, just set cached TDs to no-op */
list_for_each_entry_safe(td, tmp_td, &ep->cancelled_td_list, cancelled_td_list) {
- if (td->cancel_status != TD_CLEARING_CACHE)
+ /*
+ * Deferred TDs need to have the deq pointer set after the above command
+ * completes, so if that failed we just give up on all of them (and
+ * complain loudly since this could cause issues due to caching).
+ */
+ if (td->cancel_status != TD_CLEARING_CACHE &&
+ td->cancel_status != TD_CLEARING_CACHE_DEFERRED)
continue;
- xhci_dbg(xhci, "Failed to clear cancelled cached URB %p, mark clear anyway\n",
- td->urb);
+ xhci_warn(xhci, "Failed to clear cancelled cached URB %p, mark clear anyway\n",
+ td->urb);
td_to_noop(xhci, ring, td, false);
td->cancel_status = TD_CLEARED;
}
@@ -1346,6 +1366,7 @@ static void xhci_handle_cmd_set_deq(struct xhci_hcd *xhci, int slot_id,
struct xhci_ep_ctx *ep_ctx;
struct xhci_slot_ctx *slot_ctx;
struct xhci_td *td, *tmp_td;
+ bool deferred = false;
ep_index = TRB_TO_EP_INDEX(le32_to_cpu(trb->generic.field[3]));
stream_id = TRB_TO_STREAM_ID(le32_to_cpu(trb->generic.field[2]));
@@ -1432,6 +1453,8 @@ static void xhci_handle_cmd_set_deq(struct xhci_hcd *xhci, int slot_id,
xhci_dbg(ep->xhci, "%s: Giveback cancelled URB %p TD\n",
__func__, td->urb);
xhci_td_cleanup(ep->xhci, td, ep_ring, td->status);
+ } else if (td->cancel_status == TD_CLEARING_CACHE_DEFERRED) {
+ deferred = true;
} else {
xhci_dbg(ep->xhci, "%s: Keep cancelled URB %p TD as cancel_status is %d\n",
__func__, td->urb, td->cancel_status);
@@ -1441,8 +1464,17 @@ cleanup:
ep->ep_state &= ~SET_DEQ_PENDING;
ep->queued_deq_seg = NULL;
ep->queued_deq_ptr = NULL;
- /* Restart any rings with pending URBs */
- ring_doorbell_for_active_rings(xhci, slot_id, ep_index);
+
+ if (deferred) {
+ /* We have more streams to clear */
+ xhci_dbg(ep->xhci, "%s: Pending TDs to clear, continuing with invalidation\n",
+ __func__);
+ xhci_invalidate_cancelled_tds(ep);
+ } else {
+ /* Restart any rings with pending URBs */
+ xhci_dbg(ep->xhci, "%s: All TDs cleared, ring doorbell\n", __func__);
+ ring_doorbell_for_active_rings(xhci, slot_id, ep_index);
+ }
}
static void xhci_handle_cmd_reset_ep(struct xhci_hcd *xhci, int slot_id,
@@ -2524,9 +2556,8 @@ static int process_bulk_intr_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep,
goto finish_td;
case COMP_STOPPED_LENGTH_INVALID:
/* stopped on ep trb with invalid length, exclude it */
- ep_trb_len = 0;
- remaining = 0;
- break;
+ td->urb->actual_length = sum_trb_lengths(xhci, ep_ring, ep_trb);
+ goto finish_td;
case COMP_USB_TRANSACTION_ERROR:
if (xhci->quirks & XHCI_NO_SOFT_RETRY ||
(ep->err_count++ > MAX_SOFT_RETRY) ||
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 30415158ed3c..78d014c4d884 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1276,6 +1276,7 @@ enum xhci_cancelled_td_status {
TD_DIRTY = 0,
TD_HALTED,
TD_CLEARING_CACHE,
+ TD_CLEARING_CACHE_DEFERRED,
TD_CLEARED,
};
diff --git a/drivers/usb/storage/alauda.c b/drivers/usb/storage/alauda.c
index 115f05a6201a..40d34cc28344 100644
--- a/drivers/usb/storage/alauda.c
+++ b/drivers/usb/storage/alauda.c
@@ -105,6 +105,8 @@ struct alauda_info {
unsigned char sense_key;
unsigned long sense_asc; /* additional sense code */
unsigned long sense_ascq; /* additional sense code qualifier */
+
+ bool media_initialized;
};
#define short_pack(lsb,msb) ( ((u16)(lsb)) | ( ((u16)(msb))<<8 ) )
@@ -476,11 +478,12 @@ static int alauda_check_media(struct us_data *us)
}
/* Check for media change */
- if (status[0] & 0x08) {
+ if (status[0] & 0x08 || !info->media_initialized) {
usb_stor_dbg(us, "Media change detected\n");
alauda_free_maps(&MEDIA_INFO(us));
- alauda_init_media(us);
-
+ rc = alauda_init_media(us);
+ if (rc == USB_STOR_TRANSPORT_GOOD)
+ info->media_initialized = true;
info->sense_key = UNIT_ATTENTION;
info->sense_asc = 0x28;
info->sense_ascq = 0x00;
diff --git a/drivers/usb/typec/tcpm/tcpm.c b/drivers/usb/typec/tcpm/tcpm.c
index 8a1af08f71b6..5d4da962acc8 100644
--- a/drivers/usb/typec/tcpm/tcpm.c
+++ b/drivers/usb/typec/tcpm/tcpm.c
@@ -3014,8 +3014,10 @@ static int tcpm_register_source_caps(struct tcpm_port *port)
memcpy(caps.pdo, port->source_caps, sizeof(u32) * port->nr_source_caps);
caps.role = TYPEC_SOURCE;
- if (cap)
+ if (cap) {
usb_power_delivery_unregister_capabilities(cap);
+ port->partner_source_caps = NULL;
+ }
cap = usb_power_delivery_register_capabilities(port->partner_pd, &caps);
if (IS_ERR(cap))
@@ -6172,6 +6174,7 @@ static void _tcpm_pd_hard_reset(struct tcpm_port *port)
port->tcpc->set_bist_data(port->tcpc, false);
switch (port->state) {
+ case TOGGLING:
case ERROR_RECOVERY:
case PORT_RESET:
case PORT_RESET_WAIT_OFF:
diff --git a/drivers/usb/typec/ucsi/ucsi.c b/drivers/usb/typec/ucsi/ucsi.c
index cb52e7b0a2c5..2cc7aedd490f 100644
--- a/drivers/usb/typec/ucsi/ucsi.c
+++ b/drivers/usb/typec/ucsi/ucsi.c
@@ -153,8 +153,13 @@ static int ucsi_exec_command(struct ucsi *ucsi, u64 cmd)
}
if (cci & UCSI_CCI_ERROR) {
- if (cmd == UCSI_GET_ERROR_STATUS)
+ if (cmd == UCSI_GET_ERROR_STATUS) {
+ ret = ucsi_acknowledge(ucsi, false);
+ if (ret)
+ return ret;
+
return -EIO;
+ }
return ucsi_read_error(ucsi);
}
diff --git a/drivers/usb/typec/ucsi/ucsi_glink.c b/drivers/usb/typec/ucsi/ucsi_glink.c
index f7546bb488c3..985a880e86da 100644
--- a/drivers/usb/typec/ucsi/ucsi_glink.c
+++ b/drivers/usb/typec/ucsi/ucsi_glink.c
@@ -14,7 +14,7 @@
#include <linux/soc/qcom/pmic_glink.h>
#include "ucsi.h"
-#define PMIC_GLINK_MAX_PORTS 2
+#define PMIC_GLINK_MAX_PORTS 3
#define UCSI_BUF_SIZE 48
diff --git a/include/linux/kcov.h b/include/linux/kcov.h
index b851ba415e03..1068a7318d89 100644
--- a/include/linux/kcov.h
+++ b/include/linux/kcov.h
@@ -55,21 +55,47 @@ static inline void kcov_remote_start_usb(u64 id)
/*
* The softirq flavor of kcov_remote_*() functions is introduced as a temporary
- * work around for kcov's lack of nested remote coverage sections support in
- * task context. Adding support for nested sections is tracked in:
- * https://bugzilla.kernel.org/show_bug.cgi?id=210337
+ * workaround for KCOV's lack of nested remote coverage sections support.
+ *
+ * Adding support is tracked in https://bugzilla.kernel.org/show_bug.cgi?id=210337.
+ *
+ * kcov_remote_start_usb_softirq():
+ *
+ * 1. Only collects coverage when called in the softirq context. This allows
+ * avoiding nested remote coverage collection sections in the task context.
+ * For example, USB/IP calls usb_hcd_giveback_urb() in the task context
+ * within an existing remote coverage collection section. Thus, KCOV should
+ * not attempt to start collecting coverage within the coverage collection
+ * section in __usb_hcd_giveback_urb() in this case.
+ *
+ * 2. Disables interrupts for the duration of the coverage collection section.
+ * This allows avoiding nested remote coverage collection sections in the
+ * softirq context (a softirq might occur during the execution of a work in
+ * the BH workqueue, which runs with in_serving_softirq() > 0).
+ * For example, usb_giveback_urb_bh() runs in the BH workqueue with
+ * interrupts enabled, so __usb_hcd_giveback_urb() might be interrupted in
+ * the middle of its remote coverage collection section, and the interrupt
+ * handler might invoke __usb_hcd_giveback_urb() again.
*/
-static inline void kcov_remote_start_usb_softirq(u64 id)
+static inline unsigned long kcov_remote_start_usb_softirq(u64 id)
{
- if (in_serving_softirq())
+ unsigned long flags = 0;
+
+ if (in_serving_softirq()) {
+ local_irq_save(flags);
kcov_remote_start_usb(id);
+ }
+
+ return flags;
}
-static inline void kcov_remote_stop_softirq(void)
+static inline void kcov_remote_stop_softirq(unsigned long flags)
{
- if (in_serving_softirq())
+ if (in_serving_softirq()) {
kcov_remote_stop();
+ local_irq_restore(flags);
+ }
}
#ifdef CONFIG_64BIT
@@ -103,8 +129,11 @@ static inline u64 kcov_common_handle(void)
}
static inline void kcov_remote_start_common(u64 id) {}
static inline void kcov_remote_start_usb(u64 id) {}
-static inline void kcov_remote_start_usb_softirq(u64 id) {}
-static inline void kcov_remote_stop_softirq(void) {}
+static inline unsigned long kcov_remote_start_usb_softirq(u64 id)
+{
+ return 0;
+}
+static inline void kcov_remote_stop_softirq(unsigned long flags) {}
#endif /* CONFIG_KCOV */
#endif /* _LINUX_KCOV_H */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 23:54:26 +0100