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path: root/drivers/usb/host
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-rw-r--r--drivers/usb/host/ehci-dbg.c10
-rw-r--r--drivers/usb/host/ehci-exynos.c27
-rw-r--r--drivers/usb/host/ehci-q.c20
-rw-r--r--drivers/usb/host/ehci.h8
-rw-r--r--drivers/usb/host/ohci-exynos.c27
-rw-r--r--drivers/usb/host/ohci-hcd.c8
-rw-r--r--drivers/usb/host/xhci-dbgcap.c2
-rw-r--r--drivers/usb/host/xhci-mem.c48
-rw-r--r--drivers/usb/host/xhci-pci.c56
-rw-r--r--drivers/usb/host/xhci-plat.h4
-rw-r--r--drivers/usb/host/xhci-rcar.c6
-rw-r--r--drivers/usb/host/xhci-ring.c206
-rw-r--r--drivers/usb/host/xhci-rzv2m.c1
-rw-r--r--drivers/usb/host/xhci-trace.h12
-rw-r--r--drivers/usb/host/xhci.c38
-rw-r--r--drivers/usb/host/xhci.h29
16 files changed, 227 insertions, 275 deletions
diff --git a/drivers/usb/host/ehci-dbg.c b/drivers/usb/host/ehci-dbg.c
index c063fb042926..435001128221 100644
--- a/drivers/usb/host/ehci-dbg.c
+++ b/drivers/usb/host/ehci-dbg.c
@@ -430,13 +430,13 @@ static void qh_lines(struct ehci_hcd *ehci, struct ehci_qh *qh,
mark = '/';
}
switch ((scratch >> 8) & 0x03) {
- case 0:
+ case PID_CODE_OUT:
type = "out";
break;
- case 1:
+ case PID_CODE_IN:
type = "in";
break;
- case 2:
+ case PID_CODE_SETUP:
type = "setup";
break;
default:
@@ -602,10 +602,10 @@ static unsigned output_buf_tds_dir(char *buf, struct ehci_hcd *ehci,
list_for_each_entry(qtd, &qh->qtd_list, qtd_list) {
temp++;
switch ((hc32_to_cpu(ehci, qtd->hw_token) >> 8) & 0x03) {
- case 0:
+ case PID_CODE_OUT:
type = "out";
continue;
- case 1:
+ case PID_CODE_IN:
type = "in";
continue;
}
diff --git a/drivers/usb/host/ehci-exynos.c b/drivers/usb/host/ehci-exynos.c
index f644b131cc0b..f40bc2a7a124 100644
--- a/drivers/usb/host/ehci-exynos.c
+++ b/drivers/usb/host/ehci-exynos.c
@@ -159,20 +159,16 @@ static int exynos_ehci_probe(struct platform_device *pdev)
err = exynos_ehci_get_phy(&pdev->dev, exynos_ehci);
if (err)
- goto fail_clk;
+ goto fail_io;
- exynos_ehci->clk = devm_clk_get(&pdev->dev, "usbhost");
+ exynos_ehci->clk = devm_clk_get_enabled(&pdev->dev, "usbhost");
if (IS_ERR(exynos_ehci->clk)) {
dev_err(&pdev->dev, "Failed to get usbhost clock\n");
err = PTR_ERR(exynos_ehci->clk);
- goto fail_clk;
+ goto fail_io;
}
- err = clk_prepare_enable(exynos_ehci->clk);
- if (err)
- goto fail_clk;
-
hcd->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
if (IS_ERR(hcd->regs)) {
err = PTR_ERR(hcd->regs);
@@ -223,8 +219,6 @@ fail_add_hcd:
exynos_ehci_phy_disable(&pdev->dev);
pdev->dev.of_node = exynos_ehci->of_node;
fail_io:
- clk_disable_unprepare(exynos_ehci->clk);
-fail_clk:
usb_put_hcd(hcd);
return err;
}
@@ -240,12 +234,9 @@ static void exynos_ehci_remove(struct platform_device *pdev)
exynos_ehci_phy_disable(&pdev->dev);
- clk_disable_unprepare(exynos_ehci->clk);
-
usb_put_hcd(hcd);
}
-#ifdef CONFIG_PM
static int exynos_ehci_suspend(struct device *dev)
{
struct usb_hcd *hcd = dev_get_drvdata(dev);
@@ -288,15 +279,9 @@ static int exynos_ehci_resume(struct device *dev)
ehci_resume(hcd, false);
return 0;
}
-#else
-#define exynos_ehci_suspend NULL
-#define exynos_ehci_resume NULL
-#endif
-static const struct dev_pm_ops exynos_ehci_pm_ops = {
- .suspend = exynos_ehci_suspend,
- .resume = exynos_ehci_resume,
-};
+static DEFINE_SIMPLE_DEV_PM_OPS(exynos_ehci_pm_ops,
+ exynos_ehci_suspend, exynos_ehci_resume);
#ifdef CONFIG_OF
static const struct of_device_id exynos_ehci_match[] = {
@@ -312,7 +297,7 @@ static struct platform_driver exynos_ehci_driver = {
.shutdown = usb_hcd_platform_shutdown,
.driver = {
.name = "exynos-ehci",
- .pm = &exynos_ehci_pm_ops,
+ .pm = pm_ptr(&exynos_ehci_pm_ops),
.of_match_table = of_match_ptr(exynos_ehci_match),
}
};
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c
index 666f5c4db25a..ba37a9fcab92 100644
--- a/drivers/usb/host/ehci-q.c
+++ b/drivers/usb/host/ehci-q.c
@@ -27,10 +27,6 @@
/*-------------------------------------------------------------------------*/
-/* PID Codes that are used here, from EHCI specification, Table 3-16. */
-#define PID_CODE_IN 1
-#define PID_CODE_SETUP 2
-
/* fill a qtd, returning how much of the buffer we were able to queue up */
static unsigned int
@@ -230,7 +226,7 @@ static int qtd_copy_status (
/* fs/ls interrupt xfer missed the complete-split */
status = -EPROTO;
} else if (token & QTD_STS_DBE) {
- status = (QTD_PID (token) == 1) /* IN ? */
+ status = (QTD_PID(token) == PID_CODE_IN) /* IN ? */
? -ENOSR /* hc couldn't read data */
: -ECOMM; /* hc couldn't write data */
} else if (token & QTD_STS_XACT) {
@@ -606,7 +602,7 @@ qh_urb_transaction (
/* SETUP pid */
qtd_fill(ehci, qtd, urb->setup_dma,
sizeof (struct usb_ctrlrequest),
- token | (2 /* "setup" */ << 8), 8);
+ token | (PID_CODE_SETUP << 8), 8);
/* ... and always at least one more pid */
token ^= QTD_TOGGLE;
@@ -620,7 +616,7 @@ qh_urb_transaction (
/* for zero length DATA stages, STATUS is always IN */
if (len == 0)
- token |= (1 /* "in" */ << 8);
+ token |= (PID_CODE_IN << 8);
}
/*
@@ -642,7 +638,7 @@ qh_urb_transaction (
}
if (is_input)
- token |= (1 /* "in" */ << 8);
+ token |= (PID_CODE_IN << 8);
/* else it's already initted to "out" pid (0 << 8) */
maxpacket = usb_endpoint_maxp(&urb->ep->desc);
@@ -709,7 +705,7 @@ qh_urb_transaction (
if (usb_pipecontrol (urb->pipe)) {
one_more = 1;
- token ^= 0x0100; /* "in" <--> "out" */
+ token ^= (PID_CODE_IN << 8); /* "in" <--> "out" */
token |= QTD_TOGGLE; /* force DATA1 */
} else if (usb_pipeout(urb->pipe)
&& (urb->transfer_flags & URB_ZERO_PACKET)
@@ -1203,7 +1199,7 @@ static int ehci_submit_single_step_set_feature(
/* SETUP pid, and interrupt after SETUP completion */
qtd_fill(ehci, qtd, urb->setup_dma,
sizeof(struct usb_ctrlrequest),
- QTD_IOC | token | (2 /* "setup" */ << 8), 8);
+ QTD_IOC | token | (PID_CODE_SETUP << 8), 8);
submit_async(ehci, urb, &qtd_list, GFP_ATOMIC);
return 0; /*Return now; we shall come back after 15 seconds*/
@@ -1216,7 +1212,7 @@ static int ehci_submit_single_step_set_feature(
token ^= QTD_TOGGLE; /*We need to start IN with DATA-1 Pid-sequence*/
buf = urb->transfer_dma;
- token |= (1 /* "in" */ << 8); /*This is IN stage*/
+ token |= (PID_CODE_IN << 8); /*This is IN stage*/
maxpacket = usb_endpoint_maxp(&urb->ep->desc);
@@ -1229,7 +1225,7 @@ static int ehci_submit_single_step_set_feature(
qtd->hw_alt_next = EHCI_LIST_END(ehci);
/* STATUS stage for GetDesc control request */
- token ^= 0x0100; /* "in" <--> "out" */
+ token ^= (PID_CODE_IN << 8); /* "in" <--> "out" */
token |= QTD_TOGGLE; /* force DATA1 */
qtd_prev = qtd;
diff --git a/drivers/usb/host/ehci.h b/drivers/usb/host/ehci.h
index 1441e3400796..d7a3c8d13f6b 100644
--- a/drivers/usb/host/ehci.h
+++ b/drivers/usb/host/ehci.h
@@ -321,10 +321,16 @@ struct ehci_qtd {
size_t length; /* length of buffer */
} __aligned(32);
+/* PID Codes that are used here, from EHCI specification, Table 3-16. */
+#define PID_CODE_OUT 0
+#define PID_CODE_IN 1
+#define PID_CODE_SETUP 2
+
/* mask NakCnt+T in qh->hw_alt_next */
#define QTD_MASK(ehci) cpu_to_hc32(ehci, ~0x1f)
-#define IS_SHORT_READ(token) (QTD_LENGTH(token) != 0 && QTD_PID(token) == 1)
+#define IS_SHORT_READ(token) (QTD_LENGTH(token) != 0 && \
+ QTD_PID(token) == PID_CODE_IN)
/*-------------------------------------------------------------------------*/
diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c
index 20e26a474591..3c4d68fd5c33 100644
--- a/drivers/usb/host/ohci-exynos.c
+++ b/drivers/usb/host/ohci-exynos.c
@@ -135,20 +135,16 @@ static int exynos_ohci_probe(struct platform_device *pdev)
err = exynos_ohci_get_phy(&pdev->dev, exynos_ohci);
if (err)
- goto fail_clk;
+ goto fail_io;
- exynos_ohci->clk = devm_clk_get(&pdev->dev, "usbhost");
+ exynos_ohci->clk = devm_clk_get_enabled(&pdev->dev, "usbhost");
if (IS_ERR(exynos_ohci->clk)) {
dev_err(&pdev->dev, "Failed to get usbhost clock\n");
err = PTR_ERR(exynos_ohci->clk);
- goto fail_clk;
+ goto fail_io;
}
- err = clk_prepare_enable(exynos_ohci->clk);
- if (err)
- goto fail_clk;
-
hcd->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
if (IS_ERR(hcd->regs)) {
err = PTR_ERR(hcd->regs);
@@ -191,8 +187,6 @@ fail_add_hcd:
exynos_ohci_phy_disable(&pdev->dev);
pdev->dev.of_node = exynos_ohci->of_node;
fail_io:
- clk_disable_unprepare(exynos_ohci->clk);
-fail_clk:
usb_put_hcd(hcd);
return err;
}
@@ -208,8 +202,6 @@ static void exynos_ohci_remove(struct platform_device *pdev)
exynos_ohci_phy_disable(&pdev->dev);
- clk_disable_unprepare(exynos_ohci->clk);
-
usb_put_hcd(hcd);
}
@@ -221,7 +213,6 @@ static void exynos_ohci_shutdown(struct platform_device *pdev)
hcd->driver->shutdown(hcd);
}
-#ifdef CONFIG_PM
static int exynos_ohci_suspend(struct device *dev)
{
struct usb_hcd *hcd = dev_get_drvdata(dev);
@@ -258,19 +249,13 @@ static int exynos_ohci_resume(struct device *dev)
return 0;
}
-#else
-#define exynos_ohci_suspend NULL
-#define exynos_ohci_resume NULL
-#endif
static const struct ohci_driver_overrides exynos_overrides __initconst = {
.extra_priv_size = sizeof(struct exynos_ohci_hcd),
};
-static const struct dev_pm_ops exynos_ohci_pm_ops = {
- .suspend = exynos_ohci_suspend,
- .resume = exynos_ohci_resume,
-};
+static DEFINE_SIMPLE_DEV_PM_OPS(exynos_ohci_pm_ops,
+ exynos_ohci_suspend, exynos_ohci_resume);
#ifdef CONFIG_OF
static const struct of_device_id exynos_ohci_match[] = {
@@ -286,7 +271,7 @@ static struct platform_driver exynos_ohci_driver = {
.shutdown = exynos_ohci_shutdown,
.driver = {
.name = "exynos-ohci",
- .pm = &exynos_ohci_pm_ops,
+ .pm = pm_ptr(&exynos_ohci_pm_ops),
.of_match_table = of_match_ptr(exynos_ohci_match),
}
};
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index 4f9982ecfb58..5cec7640e913 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -888,6 +888,7 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd)
/* Check for an all 1's result which is a typical consequence
* of dead, unclocked, or unplugged (CardBus...) devices
*/
+again:
if (ints == ~(u32)0) {
ohci->rh_state = OHCI_RH_HALTED;
ohci_dbg (ohci, "device removed!\n");
@@ -982,6 +983,13 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd)
}
spin_unlock(&ohci->lock);
+ /* repeat until all enabled interrupts are handled */
+ if (ohci->rh_state != OHCI_RH_HALTED) {
+ ints = ohci_readl(ohci, &regs->intrstatus);
+ if (ints && (ints & ohci_readl(ohci, &regs->intrenable)))
+ goto again;
+ }
+
return IRQ_HANDLED;
}
diff --git a/drivers/usb/host/xhci-dbgcap.c b/drivers/usb/host/xhci-dbgcap.c
index 8a9869ef0db6..872d9cddbcef 100644
--- a/drivers/usb/host/xhci-dbgcap.c
+++ b/drivers/usb/host/xhci-dbgcap.c
@@ -516,7 +516,7 @@ static int xhci_dbc_mem_init(struct xhci_dbc *dbc, gfp_t flags)
goto string_fail;
/* Setup ERST register: */
- writel(dbc->erst.erst_size, &dbc->regs->ersts);
+ writel(dbc->erst.num_entries, &dbc->regs->ersts);
lo_hi_writeq(dbc->erst.erst_dma_addr, &dbc->regs->erstba);
deq = xhci_trb_virt_to_dma(dbc->ring_evt->deq_seg,
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 69dd86669883..3100219d6496 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -536,7 +536,7 @@ static void xhci_free_stream_ctx(struct xhci_hcd *xhci,
struct xhci_stream_ctx *stream_ctx, dma_addr_t dma)
{
struct device *dev = xhci_to_hcd(xhci)->self.sysdev;
- size_t size = sizeof(struct xhci_stream_ctx) * num_stream_ctxs;
+ size_t size = array_size(sizeof(struct xhci_stream_ctx), num_stream_ctxs);
if (size > MEDIUM_STREAM_ARRAY_SIZE)
dma_free_coherent(dev, size, stream_ctx, dma);
@@ -561,7 +561,7 @@ static struct xhci_stream_ctx *xhci_alloc_stream_ctx(struct xhci_hcd *xhci,
gfp_t mem_flags)
{
struct device *dev = xhci_to_hcd(xhci)->self.sysdev;
- size_t size = size_mul(sizeof(struct xhci_stream_ctx), num_stream_ctxs);
+ size_t size = array_size(sizeof(struct xhci_stream_ctx), num_stream_ctxs);
if (size > MEDIUM_STREAM_ARRAY_SIZE)
return dma_alloc_coherent(dev, size, dma, mem_flags);
@@ -1638,7 +1638,7 @@ static int scratchpad_alloc(struct xhci_hcd *xhci, gfp_t flags)
goto fail_sp;
xhci->scratchpad->sp_array = dma_alloc_coherent(dev,
- size_mul(sizeof(u64), num_sp),
+ array_size(sizeof(u64), num_sp),
&xhci->scratchpad->sp_dma, flags);
if (!xhci->scratchpad->sp_array)
goto fail_sp2;
@@ -1671,7 +1671,7 @@ static int scratchpad_alloc(struct xhci_hcd *xhci, gfp_t flags)
kfree(xhci->scratchpad->sp_buffers);
fail_sp3:
- dma_free_coherent(dev, num_sp * sizeof(u64),
+ dma_free_coherent(dev, array_size(sizeof(u64), num_sp),
xhci->scratchpad->sp_array,
xhci->scratchpad->sp_dma);
@@ -1700,7 +1700,7 @@ static void scratchpad_free(struct xhci_hcd *xhci)
xhci->scratchpad->sp_array[i]);
}
kfree(xhci->scratchpad->sp_buffers);
- dma_free_coherent(dev, num_sp * sizeof(u64),
+ dma_free_coherent(dev, array_size(sizeof(u64), num_sp),
xhci->scratchpad->sp_array,
xhci->scratchpad->sp_dma);
kfree(xhci->scratchpad);
@@ -1778,7 +1778,7 @@ static int xhci_alloc_erst(struct xhci_hcd *xhci,
struct xhci_segment *seg;
struct xhci_erst_entry *entry;
- size = size_mul(sizeof(struct xhci_erst_entry), evt_ring->num_segs);
+ size = array_size(sizeof(struct xhci_erst_entry), evt_ring->num_segs);
erst->entries = dma_alloc_coherent(xhci_to_hcd(xhci)->self.sysdev,
size, &erst->erst_dma_addr, flags);
if (!erst->entries)
@@ -1829,7 +1829,7 @@ xhci_free_interrupter(struct xhci_hcd *xhci, struct xhci_interrupter *ir)
if (!ir)
return;
- erst_size = sizeof(struct xhci_erst_entry) * ir->erst.num_entries;
+ erst_size = array_size(sizeof(struct xhci_erst_entry), ir->erst.num_entries);
if (ir->erst.entries)
dma_free_coherent(dev, erst_size,
ir->erst.entries,
@@ -1950,7 +1950,6 @@ no_bw:
kfree(xhci->usb3_rhub.ports);
kfree(xhci->hw_ports);
kfree(xhci->rh_bw);
- kfree(xhci->ext_caps);
for (i = 0; i < xhci->num_port_caps; i++)
kfree(xhci->port_caps[i].psi);
kfree(xhci->port_caps);
@@ -1961,7 +1960,6 @@ no_bw:
xhci->usb3_rhub.ports = NULL;
xhci->hw_ports = NULL;
xhci->rh_bw = NULL;
- xhci->ext_caps = NULL;
xhci->port_caps = NULL;
xhci->interrupters = NULL;
@@ -2089,10 +2087,7 @@ static void xhci_add_in_port(struct xhci_hcd *xhci, unsigned int num_ports,
port_cap->maj_rev = major_revision;
port_cap->min_rev = minor_revision;
-
- /* cache usb2 port capabilities */
- if (major_revision < 0x03 && xhci->num_ext_caps < max_caps)
- xhci->ext_caps[xhci->num_ext_caps++] = temp;
+ port_cap->protocol_caps = temp;
if ((xhci->hci_version >= 0x100) && (major_revision != 0x03) &&
(temp & XHCI_HLC)) {
@@ -2212,11 +2207,6 @@ static int xhci_setup_port_arrays(struct xhci_hcd *xhci, gfp_t flags)
XHCI_EXT_CAPS_PROTOCOL);
}
- xhci->ext_caps = kcalloc_node(cap_count, sizeof(*xhci->ext_caps),
- flags, dev_to_node(dev));
- if (!xhci->ext_caps)
- return -ENOMEM;
-
xhci->port_caps = kcalloc_node(cap_count, sizeof(*xhci->port_caps),
flags, dev_to_node(dev));
if (!xhci->port_caps)
@@ -2269,24 +2259,24 @@ static int xhci_setup_port_arrays(struct xhci_hcd *xhci, gfp_t flags)
}
static struct xhci_interrupter *
-xhci_alloc_interrupter(struct xhci_hcd *xhci, int segs, gfp_t flags)
+xhci_alloc_interrupter(struct xhci_hcd *xhci, unsigned int segs, gfp_t flags)
{
struct device *dev = xhci_to_hcd(xhci)->self.sysdev;
struct xhci_interrupter *ir;
- unsigned int num_segs = segs;
+ unsigned int max_segs;
int ret;
+ if (!segs)
+ segs = ERST_DEFAULT_SEGS;
+
+ max_segs = BIT(HCS_ERST_MAX(xhci->hcs_params2));
+ segs = min(segs, max_segs);
+
ir = kzalloc_node(sizeof(*ir), flags, dev_to_node(dev));
if (!ir)
return NULL;
- /* number of ring segments should be greater than 0 */
- if (segs <= 0)
- num_segs = min_t(unsigned int, 1 << HCS_ERST_MAX(xhci->hcs_params2),
- ERST_MAX_SEGS);
-
- ir->event_ring = xhci_ring_alloc(xhci, num_segs, 1, TYPE_EVENT, 0,
- flags);
+ ir->event_ring = xhci_ring_alloc(xhci, segs, 1, TYPE_EVENT, 0, flags);
if (!ir->event_ring) {
xhci_warn(xhci, "Failed to allocate interrupter event ring\n");
kfree(ir);
@@ -2344,7 +2334,7 @@ xhci_add_interrupter(struct xhci_hcd *xhci, struct xhci_interrupter *ir,
}
struct xhci_interrupter *
-xhci_create_secondary_interrupter(struct usb_hcd *hcd, int num_seg)
+xhci_create_secondary_interrupter(struct usb_hcd *hcd, unsigned int segs)
{
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
struct xhci_interrupter *ir;
@@ -2354,7 +2344,7 @@ xhci_create_secondary_interrupter(struct usb_hcd *hcd, int num_seg)
if (!xhci->interrupters || xhci->max_interrupters <= 1)
return NULL;
- ir = xhci_alloc_interrupter(xhci, num_seg, GFP_KERNEL);
+ ir = xhci_alloc_interrupter(xhci, segs, GFP_KERNEL);
if (!ir)
return NULL;
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 93b697648018..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
@@ -45,8 +46,16 @@
#define PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI 0x9d2f
#define PCI_DEVICE_ID_INTEL_BROXTON_M_XHCI 0x0aa8
#define PCI_DEVICE_ID_INTEL_BROXTON_B_XHCI 0x1aa8
-#define PCI_DEVICE_ID_INTEL_APL_XHCI 0x5aa8
-#define PCI_DEVICE_ID_INTEL_DNV_XHCI 0x19d0
+#define PCI_DEVICE_ID_INTEL_APOLLO_LAKE_XHCI 0x5aa8
+#define PCI_DEVICE_ID_INTEL_DENVERTON_XHCI 0x19d0
+#define PCI_DEVICE_ID_INTEL_ICE_LAKE_XHCI 0x8a13
+#define PCI_DEVICE_ID_INTEL_TIGER_LAKE_XHCI 0x9a13
+#define PCI_DEVICE_ID_INTEL_COMET_LAKE_XHCI 0xa3af
+#define PCI_DEVICE_ID_INTEL_ALDER_LAKE_PCH_XHCI 0x51ed
+#define PCI_DEVICE_ID_INTEL_ALDER_LAKE_N_PCH_XHCI 0x54ed
+
+/* Thunderbolt */
+#define PCI_DEVICE_ID_INTEL_MAPLE_RIDGE_XHCI 0x1138
#define PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_2C_XHCI 0x15b5
#define PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_4C_XHCI 0x15b6
#define PCI_DEVICE_ID_INTEL_ALPINE_RIDGE_LP_XHCI 0x15c1
@@ -55,12 +64,6 @@
#define PCI_DEVICE_ID_INTEL_TITAN_RIDGE_2C_XHCI 0x15e9
#define PCI_DEVICE_ID_INTEL_TITAN_RIDGE_4C_XHCI 0x15ec
#define PCI_DEVICE_ID_INTEL_TITAN_RIDGE_DD_XHCI 0x15f0
-#define PCI_DEVICE_ID_INTEL_ICE_LAKE_XHCI 0x8a13
-#define PCI_DEVICE_ID_INTEL_CML_XHCI 0xa3af
-#define PCI_DEVICE_ID_INTEL_TIGER_LAKE_XHCI 0x9a13
-#define PCI_DEVICE_ID_INTEL_MAPLE_RIDGE_XHCI 0x1138
-#define PCI_DEVICE_ID_INTEL_ALDER_LAKE_PCH_XHCI 0x51ed
-#define PCI_DEVICE_ID_INTEL_ALDER_LAKE_N_PCH_XHCI 0x54ed
#define PCI_DEVICE_ID_AMD_RENOIR_XHCI 0x1639
#define PCI_DEVICE_ID_AMD_PROMONTORYA_4 0x43b9
@@ -270,17 +273,12 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
"QUIRK: Fresco Logic revision %u "
"has broken MSI implementation",
pdev->revision);
- xhci->quirks |= XHCI_TRUST_TX_LENGTH;
}
if (pdev->vendor == PCI_VENDOR_ID_FRESCO_LOGIC &&
pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_FL1009)
xhci->quirks |= XHCI_BROKEN_STREAMS;
- if (pdev->vendor == PCI_VENDOR_ID_FRESCO_LOGIC &&
- pdev->device == PCI_DEVICE_ID_FRESCO_LOGIC_FL1100)
- xhci->quirks |= XHCI_TRUST_TX_LENGTH;
-
if (pdev->vendor == PCI_VENDOR_ID_NEC)
xhci->quirks |= XHCI_NEC_HOST;
@@ -307,11 +305,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
xhci->quirks |= XHCI_RESET_ON_RESUME;
}
- if (pdev->vendor == PCI_VENDOR_ID_AMD) {
- xhci->quirks |= XHCI_TRUST_TX_LENGTH;
- if (pdev->device == 0x43f7)
- xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW;
- }
+ if (pdev->vendor == PCI_VENDOR_ID_AMD && pdev->device == 0x43f7)
+ xhci->quirks |= XHCI_DEFAULT_PM_RUNTIME_ALLOW;
if ((pdev->vendor == PCI_VENDOR_ID_AMD) &&
((pdev->device == PCI_DEVICE_ID_AMD_PROMONTORYA_4) ||
@@ -356,9 +351,9 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI ||
pdev->device == PCI_DEVICE_ID_INTEL_BROXTON_M_XHCI ||
pdev->device == PCI_DEVICE_ID_INTEL_BROXTON_B_XHCI ||
- pdev->device == PCI_DEVICE_ID_INTEL_APL_XHCI ||
- pdev->device == PCI_DEVICE_ID_INTEL_DNV_XHCI ||
- pdev->device == PCI_DEVICE_ID_INTEL_CML_XHCI)) {
+ pdev->device == PCI_DEVICE_ID_INTEL_APOLLO_LAKE_XHCI ||
+ pdev->device == PCI_DEVICE_ID_INTEL_DENVERTON_XHCI ||
+ pdev->device == PCI_DEVICE_ID_INTEL_COMET_LAKE_XHCI)) {
xhci->quirks |= XHCI_PME_STUCK_QUIRK;
}
if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
@@ -367,14 +362,14 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
(pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI ||
pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI ||
- pdev->device == PCI_DEVICE_ID_INTEL_APL_XHCI))
+ pdev->device == PCI_DEVICE_ID_INTEL_APOLLO_LAKE_XHCI))
xhci->quirks |= XHCI_INTEL_USB_ROLE_SW;
if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
(pdev->device == PCI_DEVICE_ID_INTEL_CHERRYVIEW_XHCI ||
pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_LP_XHCI ||
pdev->device == PCI_DEVICE_ID_INTEL_SUNRISEPOINT_H_XHCI ||
- pdev->device == PCI_DEVICE_ID_INTEL_APL_XHCI ||
- pdev->device == PCI_DEVICE_ID_INTEL_DNV_XHCI))
+ pdev->device == PCI_DEVICE_ID_INTEL_APOLLO_LAKE_XHCI ||
+ pdev->device == PCI_DEVICE_ID_INTEL_DENVERTON_XHCI))
xhci->quirks |= XHCI_MISSING_CAS;
if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
@@ -399,12 +394,16 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
if (pdev->vendor == PCI_VENDOR_ID_ETRON &&
pdev->device == PCI_DEVICE_ID_EJ168) {
xhci->quirks |= XHCI_RESET_ON_RESUME;
- xhci->quirks |= XHCI_TRUST_TX_LENGTH;
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_TRUST_TX_LENGTH;
xhci->quirks |= XHCI_ZERO_64B_REGS;
}
if (pdev->vendor == PCI_VENDOR_ID_RENESAS &&
@@ -434,7 +433,6 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
}
if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
pdev->device == PCI_DEVICE_ID_ASMEDIA_1042A_XHCI) {
- xhci->quirks |= XHCI_TRUST_TX_LENGTH;
xhci->quirks |= XHCI_NO_64BIT_SUPPORT;
}
if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
@@ -889,10 +887,10 @@ static const struct xhci_driver_data reneses_data = {
/* PCI driver selection metadata; PCI hotplugging uses this */
static const struct pci_device_id pci_ids[] = {
- { PCI_DEVICE(0x1912, 0x0014),
+ { PCI_DEVICE(PCI_VENDOR_ID_RENESAS, 0x0014),
.driver_data = (unsigned long)&reneses_data,
},
- { PCI_DEVICE(0x1912, 0x0015),
+ { PCI_DEVICE(PCI_VENDOR_ID_RENESAS, 0x0015),
.driver_data = (unsigned long)&reneses_data,
},
/* handle any USB 3.0 xHCI controller */
diff --git a/drivers/usb/host/xhci-plat.h b/drivers/usb/host/xhci-plat.h
index 2d15386f2c50..6475130eac4b 100644
--- a/drivers/usb/host/xhci-plat.h
+++ b/drivers/usb/host/xhci-plat.h
@@ -8,7 +8,9 @@
#ifndef _XHCI_PLAT_H
#define _XHCI_PLAT_H
-#include "xhci.h" /* for hcd_to_xhci() */
+struct device;
+struct platform_device;
+struct usb_hcd;
struct xhci_plat_priv {
const char *firmware_name;
diff --git a/drivers/usb/host/xhci-rcar.c b/drivers/usb/host/xhci-rcar.c
index ab9c5969e462..8b357647728c 100644
--- a/drivers/usb/host/xhci-rcar.c
+++ b/drivers/usb/host/xhci-rcar.c
@@ -214,8 +214,7 @@ static int xhci_rcar_resume_quirk(struct usb_hcd *hcd)
*/
#define SET_XHCI_PLAT_PRIV_FOR_RCAR(firmware) \
.firmware_name = firmware, \
- .quirks = XHCI_NO_64BIT_SUPPORT | XHCI_TRUST_TX_LENGTH | \
- XHCI_SLOW_SUSPEND, \
+ .quirks = XHCI_NO_64BIT_SUPPORT | XHCI_SLOW_SUSPEND, \
.init_quirk = xhci_rcar_init_quirk, \
.plat_start = xhci_rcar_start, \
.resume_quirk = xhci_rcar_resume_quirk,
@@ -229,8 +228,7 @@ static const struct xhci_plat_priv xhci_plat_renesas_rcar_gen3 = {
};
static const struct xhci_plat_priv xhci_plat_renesas_rzv2m = {
- .quirks = XHCI_NO_64BIT_SUPPORT | XHCI_TRUST_TX_LENGTH |
- XHCI_SLOW_SUSPEND,
+ .quirks = XHCI_NO_64BIT_SUPPORT | XHCI_SLOW_SUSPEND,
.init_quirk = xhci_rzv2m_init_quirk,
.plat_start = xhci_rzv2m_start,
};
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 52278afea94b..fd0cde3d1569 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -308,7 +308,7 @@ static unsigned int xhci_num_trbs_free(struct xhci_hcd *xhci, struct xhci_ring *
free += last_on_seg - enq;
enq_seg = enq_seg->next;
enq = enq_seg->trbs;
- } while (i++ <= ring->num_segs);
+ } while (i++ < ring->num_segs);
return free;
}
@@ -351,10 +351,8 @@ static unsigned int xhci_ring_expansion_needed(struct xhci_hcd *xhci, struct xhc
while (new_segs > 0) {
seg = seg->next;
if (seg == ring->deq_seg) {
- xhci_dbg(xhci, "Ring expansion by %d segments needed\n",
- new_segs);
- xhci_dbg(xhci, "Adding %d trbs moves enq %d trbs into deq seg\n",
- num_trbs, trbs_past_seg % TRBS_PER_SEGMENT);
+ xhci_dbg(xhci, "Adding %d trbs requires expanding ring by %d segments\n",
+ num_trbs, new_segs);
return new_segs;
}
new_segs--;
@@ -1026,21 +1024,34 @@ static int xhci_invalidate_cancelled_tds(struct xhci_virt_ep *ep)
td->urb->stream_id);
hw_deq &= ~0xf;
- if (td->cancel_status == TD_HALTED ||
- trb_in_td(xhci, td->start_seg, td->first_trb, td->last_trb, hw_deq, false)) {
+ if (td->cancel_status == TD_HALTED || trb_in_td(xhci, td, hw_deq, false)) {
switch (td->cancel_status) {
case TD_CLEARED: /* TD is already no-op */
case TD_CLEARING_CACHE: /* set TR deq command already queued */
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;
}
@@ -1060,10 +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;
}
@@ -1084,8 +1101,7 @@ static struct xhci_td *find_halted_td(struct xhci_virt_ep *ep)
hw_deq = xhci_get_hw_deq(ep->xhci, ep->vdev, ep->ep_index, 0);
hw_deq &= ~0xf;
td = list_first_entry(&ep->ring->td_list, struct xhci_td, td_list);
- if (trb_in_td(ep->xhci, td->start_seg, td->first_trb,
- td->last_trb, hw_deq, false))
+ if (trb_in_td(ep->xhci, td, hw_deq, false))
return td;
}
return NULL;
@@ -1350,6 +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]));
@@ -1436,6 +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);
@@ -1445,8 +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,
@@ -2051,25 +2079,19 @@ cleanup:
}
/*
- * This TD is defined by the TRBs starting at start_trb in start_seg and ending
- * at end_trb, which may be in another segment. If the suspect DMA address is a
- * TRB in this TD, this function returns that TRB's segment. Otherwise it
- * returns 0.
+ * If the suspect DMA address is a TRB in this TD, this function returns that
+ * TRB's segment. Otherwise it returns 0.
*/
-struct xhci_segment *trb_in_td(struct xhci_hcd *xhci,
- struct xhci_segment *start_seg,
- union xhci_trb *start_trb,
- union xhci_trb *end_trb,
- dma_addr_t suspect_dma,
- bool debug)
+struct xhci_segment *trb_in_td(struct xhci_hcd *xhci, struct xhci_td *td, dma_addr_t suspect_dma,
+ bool debug)
{
dma_addr_t start_dma;
dma_addr_t end_seg_dma;
dma_addr_t end_trb_dma;
struct xhci_segment *cur_seg;
- start_dma = xhci_trb_virt_to_dma(start_seg, start_trb);
- cur_seg = start_seg;
+ start_dma = xhci_trb_virt_to_dma(td->start_seg, td->first_trb);
+ cur_seg = td->start_seg;
do {
if (start_dma == 0)
@@ -2078,7 +2100,7 @@ struct xhci_segment *trb_in_td(struct xhci_hcd *xhci,
end_seg_dma = xhci_trb_virt_to_dma(cur_seg,
&cur_seg->trbs[TRBS_PER_SEGMENT - 1]);
/* If the end TRB isn't in this segment, this is set to 0 */
- end_trb_dma = xhci_trb_virt_to_dma(cur_seg, end_trb);
+ end_trb_dma = xhci_trb_virt_to_dma(cur_seg, td->last_trb);
if (debug)
xhci_warn(xhci,
@@ -2112,7 +2134,7 @@ struct xhci_segment *trb_in_td(struct xhci_hcd *xhci,
}
cur_seg = cur_seg->next;
start_dma = xhci_trb_virt_to_dma(cur_seg, &cur_seg->trbs[0]);
- } while (cur_seg != start_seg);
+ } while (cur_seg != td->start_seg);
return NULL;
}
@@ -2399,8 +2421,7 @@ static int process_isoc_td(struct xhci_hcd *xhci, struct xhci_virt_ep *ep,
break;
if (remaining) {
frame->status = short_framestatus;
- if (xhci->quirks & XHCI_TRUST_TX_LENGTH)
- sum_trbs_for_length = true;
+ sum_trbs_for_length = true;
break;
}
frame->status = 0;
@@ -2535,9 +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) ||
@@ -2590,7 +2610,6 @@ static int handle_tx_event(struct xhci_hcd *xhci,
struct xhci_ep_ctx *ep_ctx;
u32 trb_comp_code;
int td_num = 0;
- bool handling_skipped_tds = false;
slot_id = TRB_TO_SLOT_ID(le32_to_cpu(event->flags));
ep_index = TRB_TO_EP_ID(le32_to_cpu(event->flags)) - 1;
@@ -2628,16 +2647,17 @@ static int handle_tx_event(struct xhci_hcd *xhci,
else
xhci_handle_halted_endpoint(xhci, ep, NULL,
EP_SOFT_RESET);
- goto cleanup;
+ break;
case COMP_RING_UNDERRUN:
case COMP_RING_OVERRUN:
case COMP_STOPPED_LENGTH_INVALID:
- goto cleanup;
+ break;
default:
xhci_err(xhci, "ERROR Transfer event for unknown stream ring slot %u ep %u\n",
slot_id, ep_index);
goto err_out;
}
+ return 0;
}
/* Count current td numbers if ep->skip is set */
@@ -2650,15 +2670,11 @@ static int handle_tx_event(struct xhci_hcd *xhci,
* transfer type
*/
case COMP_SUCCESS:
- if (EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) == 0)
- break;
- if (xhci->quirks & XHCI_TRUST_TX_LENGTH ||
- ep_ring->last_td_was_short)
+ if (EVENT_TRB_LEN(le32_to_cpu(event->transfer_len)) != 0) {
trb_comp_code = COMP_SHORT_PACKET;
- else
- xhci_warn_ratelimited(xhci,
- "WARN Successful completion on short TX for slot %u ep %u: needs XHCI_TRUST_TX_LENGTH quirk?\n",
- slot_id, ep_index);
+ xhci_dbg(xhci, "Successful completion on short TX for slot %u ep %u with last td short %d\n",
+ slot_id, ep_index, ep_ring->last_td_was_short);
+ }
break;
case COMP_SHORT_PACKET:
break;
@@ -2730,19 +2746,19 @@ static int handle_tx_event(struct xhci_hcd *xhci,
*/
xhci_dbg(xhci, "underrun event on endpoint\n");
if (!list_empty(&ep_ring->td_list))
- xhci_dbg(xhci, "Underrun Event for slot %d ep %d "
- "still with TDs queued?\n",
- TRB_TO_SLOT_ID(le32_to_cpu(event->flags)),
- ep_index);
- goto cleanup;
+ xhci_dbg(xhci, "Underrun Event for slot %u ep %d still with TDs queued?\n",
+ slot_id, ep_index);
+ if (ep->skip)
+ break;
+ return 0;
case COMP_RING_OVERRUN:
xhci_dbg(xhci, "overrun event on endpoint\n");
if (!list_empty(&ep_ring->td_list))
- xhci_dbg(xhci, "Overrun Event for slot %d ep %d "
- "still with TDs queued?\n",
- TRB_TO_SLOT_ID(le32_to_cpu(event->flags)),
- ep_index);
- goto cleanup;
+ xhci_dbg(xhci, "Overrun Event for slot %u ep %d still with TDs queued?\n",
+ slot_id, ep_index);
+ if (ep->skip)
+ break;
+ return 0;
case COMP_MISSED_SERVICE_ERROR:
/*
* When encounter missed service error, one or more isoc tds
@@ -2754,13 +2770,13 @@ static int handle_tx_event(struct xhci_hcd *xhci,
xhci_dbg(xhci,
"Miss service interval error for slot %u ep %u, set skip flag\n",
slot_id, ep_index);
- goto cleanup;
+ return 0;
case COMP_NO_PING_RESPONSE_ERROR:
ep->skip = true;
xhci_dbg(xhci,
"No Ping response error for slot %u ep %u, Skip one Isoc TD\n",
slot_id, ep_index);
- goto cleanup;
+ return 0;
case COMP_INCOMPATIBLE_DEVICE_ERROR:
/* needs disable slot command to recover */
@@ -2777,7 +2793,9 @@ static int handle_tx_event(struct xhci_hcd *xhci,
xhci_warn(xhci,
"ERROR Unknown event condition %u for slot %u ep %u , HC probably busted\n",
trb_comp_code, slot_id, ep_index);
- goto cleanup;
+ if (ep->skip)
+ break;
+ return 0;
}
do {
@@ -2796,9 +2814,8 @@ static int handle_tx_event(struct xhci_hcd *xhci,
if (!(trb_comp_code == COMP_STOPPED ||
trb_comp_code == COMP_STOPPED_LENGTH_INVALID ||
ep_ring->last_td_was_short)) {
- xhci_warn(xhci, "WARN Event TRB for slot %d ep %d with no TDs queued?\n",
- TRB_TO_SLOT_ID(le32_to_cpu(event->flags)),
- ep_index);
+ xhci_warn(xhci, "WARN Event TRB for slot %u ep %d with no TDs queued?\n",
+ slot_id, ep_index);
}
if (ep->skip) {
ep->skip = false;
@@ -2811,7 +2828,7 @@ static int handle_tx_event(struct xhci_hcd *xhci,
xhci_handle_halted_endpoint(xhci, ep, NULL,
EP_HARD_RESET);
}
- goto cleanup;
+ return 0;
}
/* We've skipped all the TDs on the ep ring when ep->skip set */
@@ -2819,7 +2836,7 @@ static int handle_tx_event(struct xhci_hcd *xhci,
ep->skip = false;
xhci_dbg(xhci, "All tds on the ep_ring skipped. Clear skip flag for slot %u ep %u.\n",
slot_id, ep_index);
- goto cleanup;
+ return 0;
}
td = list_first_entry(&ep_ring->td_list, struct xhci_td,
@@ -2828,8 +2845,7 @@ static int handle_tx_event(struct xhci_hcd *xhci,
td_num--;
/* Is this a TRB in the currently executing TD? */
- ep_seg = trb_in_td(xhci, td->start_seg, td->first_trb,
- td->last_trb, ep_trb_dma, false);
+ ep_seg = trb_in_td(xhci, td, ep_trb_dma, false);
/*
* Skip the Force Stopped Event. The event_trb(event_dma) of FSE
@@ -2841,14 +2857,14 @@ static int handle_tx_event(struct xhci_hcd *xhci,
*/
if (!ep_seg && (trb_comp_code == COMP_STOPPED ||
trb_comp_code == COMP_STOPPED_LENGTH_INVALID)) {
- goto cleanup;
+ continue;
}
if (!ep_seg) {
if (ep->skip && usb_endpoint_xfer_isoc(&td->urb->ep->desc)) {
skip_isoc_td(xhci, td, ep, status);
- goto cleanup;
+ continue;
}
/*
@@ -2858,7 +2874,7 @@ static int handle_tx_event(struct xhci_hcd *xhci,
if ((xhci->quirks & XHCI_SPURIOUS_SUCCESS) &&
ep_ring->last_td_was_short) {
ep_ring->last_td_was_short = false;
- goto cleanup;
+ return 0;
}
/*
@@ -2876,8 +2892,7 @@ static int handle_tx_event(struct xhci_hcd *xhci,
!list_is_last(&td->td_list, &ep_ring->td_list)) {
struct xhci_td *td_next = list_next_entry(td, td_list);
- ep_seg = trb_in_td(xhci, td_next->start_seg, td_next->first_trb,
- td_next->last_trb, ep_trb_dma, false);
+ ep_seg = trb_in_td(xhci, td_next, ep_trb_dma, false);
if (ep_seg) {
/* give back previous TD, start handling new */
xhci_dbg(xhci, "Missing TD completion event after mid TD error\n");
@@ -2896,8 +2911,8 @@ static int handle_tx_event(struct xhci_hcd *xhci,
"part of current TD ep_index %d "
"comp_code %u\n", ep_index,
trb_comp_code);
- trb_in_td(xhci, td->start_seg, td->first_trb,
- td->last_trb, ep_trb_dma, true);
+ trb_in_td(xhci, td, ep_trb_dma, true);
+
return -ESHUTDOWN;
}
}
@@ -2933,30 +2948,24 @@ static int handle_tx_event(struct xhci_hcd *xhci,
trb_comp_code))
xhci_handle_halted_endpoint(xhci, ep, td,
EP_HARD_RESET);
- goto cleanup;
- }
-
- td->status = status;
-
- /* update the urb's actual_length and give back to the core */
- if (usb_endpoint_xfer_control(&td->urb->ep->desc))
- process_ctrl_td(xhci, ep, ep_ring, td, ep_trb, event);
- else if (usb_endpoint_xfer_isoc(&td->urb->ep->desc))
- process_isoc_td(xhci, ep, ep_ring, td, ep_trb, event);
- else
- process_bulk_intr_td(xhci, ep, ep_ring, td, ep_trb, event);
-cleanup:
- handling_skipped_tds = ep->skip &&
- trb_comp_code != COMP_MISSED_SERVICE_ERROR &&
- trb_comp_code != COMP_NO_PING_RESPONSE_ERROR;
+ } else {
+ td->status = status;
+ /* update the urb's actual_length and give back to the core */
+ if (usb_endpoint_xfer_control(&td->urb->ep->desc))
+ process_ctrl_td(xhci, ep, ep_ring, td, ep_trb, event);
+ else if (usb_endpoint_xfer_isoc(&td->urb->ep->desc))
+ process_isoc_td(xhci, ep, ep_ring, td, ep_trb, event);
+ else
+ process_bulk_intr_td(xhci, ep, ep_ring, td, ep_trb, event);
+ }
/*
* If ep->skip is set, it means there are missed tds on the
* endpoint ring need to take care of.
* Process them as short transfer until reach the td pointed by
* the event.
*/
- } while (handling_skipped_tds);
+ } while (ep->skip);
return 0;
@@ -3133,7 +3142,7 @@ static int xhci_handle_events(struct xhci_hcd *xhci, struct xhci_interrupter *ir
irqreturn_t xhci_irq(struct usb_hcd *hcd)
{
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
- irqreturn_t ret = IRQ_NONE;
+ irqreturn_t ret = IRQ_HANDLED;
u32 status;
spin_lock(&xhci->lock);
@@ -3141,12 +3150,13 @@ irqreturn_t xhci_irq(struct usb_hcd *hcd)
status = readl(&xhci->op_regs->status);
if (status == ~(u32)0) {
xhci_hc_died(xhci);
- ret = IRQ_HANDLED;
goto out;
}
- if (!(status & STS_EINT))
+ if (!(status & STS_EINT)) {
+ ret = IRQ_NONE;
goto out;
+ }
if (status & STS_HCE) {
xhci_warn(xhci, "WARNING: Host Controller Error\n");
@@ -3156,7 +3166,6 @@ irqreturn_t xhci_irq(struct usb_hcd *hcd)
if (status & STS_FATAL) {
xhci_warn(xhci, "WARNING: Host System Error\n");
xhci_halt(xhci);
- ret = IRQ_HANDLED;
goto out;
}
@@ -3167,7 +3176,6 @@ irqreturn_t xhci_irq(struct usb_hcd *hcd)
*/
status |= STS_EINT;
writel(status, &xhci->op_regs->status);
- ret = IRQ_HANDLED;
/* This is the handler of the primary interrupter */
xhci_handle_events(xhci, xhci->interrupters[0]);
diff --git a/drivers/usb/host/xhci-rzv2m.c b/drivers/usb/host/xhci-rzv2m.c
index ec65b24eafa8..4f59867d7117 100644
--- a/drivers/usb/host/xhci-rzv2m.c
+++ b/drivers/usb/host/xhci-rzv2m.c
@@ -6,6 +6,7 @@
*/
#include <linux/usb/rzv2m_usb3drd.h>
+#include "xhci.h"
#include "xhci-plat.h"
#include "xhci-rzv2m.h"
diff --git a/drivers/usb/host/xhci-trace.h b/drivers/usb/host/xhci-trace.h
index 1740000d54c2..5762564b9d73 100644
--- a/drivers/usb/host/xhci-trace.h
+++ b/drivers/usb/host/xhci-trace.h
@@ -172,8 +172,7 @@ DECLARE_EVENT_CLASS(xhci_log_free_virt_dev,
__field(void *, vdev)
__field(unsigned long long, out_ctx)
__field(unsigned long long, in_ctx)
- __field(int, hcd_portnum)
- __field(int, hw_portnum)
+ __field(int, slot_id)
__field(u16, current_mel)
),
@@ -181,13 +180,12 @@ DECLARE_EVENT_CLASS(xhci_log_free_virt_dev,
__entry->vdev = vdev;
__entry->in_ctx = (unsigned long long) vdev->in_ctx->dma;
__entry->out_ctx = (unsigned long long) vdev->out_ctx->dma;
- __entry->hcd_portnum = (int) vdev->rhub_port->hcd_portnum;
- __entry->hw_portnum = (int) vdev->rhub_port->hw_portnum;
+ __entry->slot_id = (int) vdev->slot_id;
__entry->current_mel = (u16) vdev->current_mel;
),
- TP_printk("vdev %p ctx %llx | %llx hcd_portnum %d hw_portnum %d current_mel %d",
- __entry->vdev, __entry->in_ctx, __entry->out_ctx,
- __entry->hcd_portnum, __entry->hw_portnum, __entry->current_mel
+ TP_printk("vdev %p slot %d ctx %llx | %llx current_mel %d",
+ __entry->vdev, __entry->slot_id, __entry->in_ctx,
+ __entry->out_ctx, __entry->current_mel
)
);
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 8579603edaff..37eb37b0affa 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -4507,35 +4507,13 @@ static int xhci_set_usb2_hardware_lpm(struct usb_hcd *hcd,
return 0;
}
-/* check if a usb2 port supports a given extened capability protocol
- * only USB2 ports extended protocol capability values are cached.
- * Return 1 if capability is supported
- */
-static int xhci_check_usb2_port_capability(struct xhci_hcd *xhci, int port,
- unsigned capability)
-{
- u32 port_offset, port_count;
- int i;
-
- for (i = 0; i < xhci->num_ext_caps; i++) {
- if (xhci->ext_caps[i] & capability) {
- /* port offsets starts at 1 */
- port_offset = XHCI_EXT_PORT_OFF(xhci->ext_caps[i]) - 1;
- port_count = XHCI_EXT_PORT_COUNT(xhci->ext_caps[i]);
- if (port >= port_offset &&
- port < port_offset + port_count)
- return 1;
- }
- }
- return 0;
-}
-
static int xhci_update_device(struct usb_hcd *hcd, struct usb_device *udev)
{
struct xhci_hcd *xhci = hcd_to_xhci(hcd);
- int portnum = udev->portnum - 1;
+ struct xhci_port *port;
+ u32 capability;
- if (hcd->speed >= HCD_USB3 || !udev->lpm_capable)
+ if (hcd->speed >= HCD_USB3 || !udev->lpm_capable || !xhci->hw_lpm_support)
return 0;
/* we only support lpm for non-hub device connected to root hub yet */
@@ -4543,14 +4521,14 @@ static int xhci_update_device(struct usb_hcd *hcd, struct usb_device *udev)
udev->descriptor.bDeviceClass == USB_CLASS_HUB)
return 0;
- if (xhci->hw_lpm_support == 1 &&
- xhci_check_usb2_port_capability(
- xhci, portnum, XHCI_HLC)) {
+ port = xhci->usb2_rhub.ports[udev->portnum - 1];
+ capability = port->port_cap->protocol_caps;
+
+ if (capability & XHCI_HLC) {
udev->usb2_hw_lpm_capable = 1;
udev->l1_params.timeout = XHCI_L1_TIMEOUT;
udev->l1_params.besl = XHCI_DEFAULT_BESL;
- if (xhci_check_usb2_port_capability(xhci, portnum,
- XHCI_BLC))
+ if (capability & XHCI_BLC)
udev->usb2_hw_lpm_besl_capable = 1;
}
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 6f4bf98a6282..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,
};
@@ -1376,8 +1377,6 @@ struct xhci_erst {
unsigned int num_entries;
/* xhci->event_ring keeps track of segment dma addresses */
dma_addr_t erst_dma_addr;
- /* Num entries the ERST can contain */
- unsigned int erst_size;
};
struct xhci_scratchpad {
@@ -1392,8 +1391,8 @@ struct urb_priv {
struct xhci_td td[] __counted_by(num_tds);
};
-/* Reasonable limit for number of Event Ring segments (spec allows 32k) */
-#define ERST_MAX_SEGS 2
+/* Number of Event Ring segments to allocate, when amount is not specified. (spec allows 32k) */
+#define ERST_DEFAULT_SEGS 2
/* Poll every 60 seconds */
#define POLL_TIMEOUT 60
/* Stop endpoint command timeout (secs) for URB cancellation watchdog timer */
@@ -1451,6 +1450,7 @@ struct xhci_port_cap {
u8 psi_uid_count;
u8 maj_rev;
u8 min_rev;
+ u32 protocol_caps;
};
struct xhci_port {
@@ -1589,7 +1589,7 @@ struct xhci_hcd {
#define XHCI_RESET_ON_RESUME BIT_ULL(7)
#define XHCI_SW_BW_CHECKING BIT_ULL(8)
#define XHCI_AMD_0x96_HOST BIT_ULL(9)
-#define XHCI_TRUST_TX_LENGTH BIT_ULL(10)
+#define XHCI_TRUST_TX_LENGTH BIT_ULL(10) /* Deprecated */
#define XHCI_LPM_SUPPORT BIT_ULL(11)
#define XHCI_INTEL_HOST BIT_ULL(12)
#define XHCI_SPURIOUS_REBOOT BIT_ULL(13)
@@ -1640,9 +1640,6 @@ struct xhci_hcd {
unsigned broken_suspend:1;
/* Indicates that omitting hcd is supported if root hub has no ports */
unsigned allow_single_roothub:1;
- /* cached usb2 extened protocol capabilites */
- u32 *ext_caps;
- unsigned int num_ext_caps;
/* cached extended protocol port capabilities */
struct xhci_port_cap *port_caps;
unsigned int num_port_caps;
@@ -1729,8 +1726,6 @@ static inline bool xhci_has_one_roothub(struct xhci_hcd *xhci)
dev_err(xhci_to_hcd(xhci)->self.controller , fmt , ## args)
#define xhci_warn(xhci, fmt, args...) \
dev_warn(xhci_to_hcd(xhci)->self.controller , fmt , ## args)
-#define xhci_warn_ratelimited(xhci, fmt, args...) \
- dev_warn_ratelimited(xhci_to_hcd(xhci)->self.controller , fmt , ## args)
#define xhci_info(xhci, fmt, args...) \
dev_info(xhci_to_hcd(xhci)->self.controller , fmt , ## args)
@@ -1833,7 +1828,7 @@ struct xhci_container_ctx *xhci_alloc_container_ctx(struct xhci_hcd *xhci,
void xhci_free_container_ctx(struct xhci_hcd *xhci,
struct xhci_container_ctx *ctx);
struct xhci_interrupter *
-xhci_create_secondary_interrupter(struct usb_hcd *hcd, int num_seg);
+xhci_create_secondary_interrupter(struct usb_hcd *hcd, unsigned int segs);
void xhci_remove_secondary_interrupter(struct usb_hcd
*hcd, struct xhci_interrupter *ir);
@@ -1876,9 +1871,8 @@ int xhci_alloc_tt_info(struct xhci_hcd *xhci,
/* xHCI ring, segment, TRB, and TD functions */
dma_addr_t xhci_trb_virt_to_dma(struct xhci_segment *seg, union xhci_trb *trb);
-struct xhci_segment *trb_in_td(struct xhci_hcd *xhci,
- struct xhci_segment *start_seg, union xhci_trb *start_trb,
- union xhci_trb *end_trb, dma_addr_t suspect_dma, bool debug);
+struct xhci_segment *trb_in_td(struct xhci_hcd *xhci, struct xhci_td *td,
+ dma_addr_t suspect_dma, bool debug);
int xhci_is_vendor_info_code(struct xhci_hcd *xhci, unsigned int trb_comp_code);
void xhci_ring_cmd_db(struct xhci_hcd *xhci);
int xhci_queue_slot_control(struct xhci_hcd *xhci, struct xhci_command *cmd,
@@ -2340,7 +2334,12 @@ static inline const char *xhci_decode_portsc(char *str, u32 portsc)
{
int ret;
- ret = sprintf(str, "%s %s %s Link:%s PortSpeed:%d ",
+ ret = sprintf(str, "0x%08x ", portsc);
+
+ if (portsc == ~(u32)0)
+ return str;
+
+ ret += sprintf(str + ret, "%s %s %s Link:%s PortSpeed:%d ",
portsc & PORT_POWER ? "Powered" : "Powered-off",
portsc & PORT_CONNECT ? "Connected" : "Not-connected",
portsc & PORT_PE ? "Enabled" : "Disabled",
generated by cgit (git 2.34.1) at 2024-06-18 00:41:54 +0000