[PATCH v1 0/7] Add USB Driver for HPE GXP Architecture

[PATCH v1 0/7] Add USB Driver for HPE GXP Architecture

[richard.yu]

From: Richard Yu <richard.yu@hpe.com>

The GXP vEHCI controller presents an 8 port EHCI compatible PCI function
to host software. Each EHCI port is logically connected to a
corresponding set of virtual device registers.

Richard Yu (7):
  usb: gadget: udc: gxp_udc: add gxp USB support
  dt-bindings: usb: hpe,gxp-udc: Add binding for gxp gadget
  dt-bindings: usb: hpe,gxp-udcg: Add binding for gxp gadget group
  dt-bindings: usb: hpe,gxp-vuhc: add binding for gxp vEHCI
  ARM: dts: hpe: Add UDC nodes
  ARM: configs: multi_v7_defconfig: Enable HPE GXP USB Driver
  MAINTAINERS: add USB support to GXP

 .../devicetree/bindings/usb/hpe,gxp-udc.yaml  |   57 +
 .../devicetree/bindings/usb/hpe,gxp-udcg.yaml |   34 +
 .../devicetree/bindings/usb/hpe,gxp-vuhc.yaml |   34 +
 MAINTAINERS                                   |    5 +
 arch/arm/boot/dts/hpe-gxp.dtsi                |   30 +
 arch/arm/configs/multi_v7_defconfig           |    1 +
 drivers/usb/gadget/udc/Kconfig                |    6 +
 drivers/usb/gadget/udc/Makefile               |    1 +
 drivers/usb/gadget/udc/gxp_udc.c              | 1300 +++++++++++++++++
 9 files changed, 1468 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/hpe,gxp-udc.yaml
 create mode 100644 Documentation/devicetree/bindings/usb/hpe,gxp-udcg.yaml
 create mode 100644 Documentation/devicetree/bindings/usb/hpe,gxp-vuhc.yaml
 create mode 100644 drivers/usb/gadget/udc/gxp_udc.c

-- 
2.17.1

[PATCH v1 1/7] usb: gadget: udc: gxp_udc: add gxp USB support

[richard.yu]

From: Richard Yu <richard.yu@hpe.com>

The GXP vEHCI controller presents an 8 port EHCI compatible PCI function
to host software. Each EHCI port is logically connected to a
corresponding set of virtual device registers.

Signed-off-by: Richard Yu <richard.yu@hpe.com>
---
 drivers/usb/gadget/udc/Kconfig   |    6 +
 drivers/usb/gadget/udc/Makefile  |    1 +
 drivers/usb/gadget/udc/gxp_udc.c | 1300 ++++++++++++++++++++++++++++++
 3 files changed, 1307 insertions(+)
 create mode 100644 drivers/usb/gadget/udc/gxp_udc.c

diff --git a/drivers/usb/gadget/udc/Kconfig b/drivers/usb/gadget/udc/Kconfig
index 5756acb07b8d..5eab5c140edf 100644
--- a/drivers/usb/gadget/udc/Kconfig
+++ b/drivers/usb/gadget/udc/Kconfig
@@ -463,6 +463,12 @@ config USB_TEGRA_XUDC
 	 dynamically linked module called "tegra_xudc" and force all
 	 gadget drivers to also be dynamically linked.
 
+config USB_GXP_UDC
+        bool "GXP UDC Driver"
+        depends on ARCH_HPE_GXP || COMPILE_TEST
+        help
+          Say "y" to add support for GXP UDC driver
+
 config USB_ASPEED_UDC
 	tristate "Aspeed UDC driver support"
 	depends on ARCH_ASPEED || COMPILE_TEST
diff --git a/drivers/usb/gadget/udc/Makefile b/drivers/usb/gadget/udc/Makefile
index 12f9e4c9eb0c..e1d6e0711b4d 100644
--- a/drivers/usb/gadget/udc/Makefile
+++ b/drivers/usb/gadget/udc/Makefile
@@ -43,3 +43,4 @@ obj-$(CONFIG_USB_ASPEED_VHUB)	+= aspeed-vhub/
 obj-$(CONFIG_USB_ASPEED_UDC)	+= aspeed_udc.o
 obj-$(CONFIG_USB_BDC_UDC)	+= bdc/
 obj-$(CONFIG_USB_MAX3420_UDC)	+= max3420_udc.o
+obj-$(CONFIG_USB_GXP_UDC)	+= gxp_udc.o
diff --git a/drivers/usb/gadget/udc/gxp_udc.c b/drivers/usb/gadget/udc/gxp_udc.c
new file mode 100644
index 000000000000..2e046f88af6c
--- /dev/null
+++ b/drivers/usb/gadget/udc/gxp_udc.c
@@ -0,0 +1,1300 @@
+// SPDX-License-Identifier: GPL-2.0=or-later
+/* Copyright (C) 2022 Hewlett-Packard Enterprise Development Company, L.P. */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/of_platform.h>
+#include <linux/dma-mapping.h>
+#include <linux/delay.h>
+#include <linux/io.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/usb/ch9.h>
+#include <linux/usb/gadget.h>
+#include <linux/usb/otg.h>
+#include <linux/prefetch.h>
+#include <linux/regmap.h>
+#include <linux/mfd/syscon.h>
+
+#define EVGBASE			0x0800
+#define EVGISTAT		0x0000
+#define EVGIEN			0x0004
+#define EVDBG			0x0008
+#define EVFEMAP			0x0010
+#define EVFEMAP_VDEVNUM_MASK	0x07
+#define EVFEMAP_VDEVNUM(val)	val
+#define EVFEMAP_EPNUM_MASK	0x70
+#define EVFEMAP_EPNUM(val)	((val) << 4)
+
+#define EVDBASE			0x1000
+#define EVDISTAT		0x0000
+#define EVDISTAT_ALL_EP_INT	0x000000ff
+#define EVDISTAT_EP0_INT	0x00000001
+#define EVDISTAT_EP1_INT	0x00000002
+#define EVDISTAT_EP2_INT	0x00000004
+#define EVDISTAT_EP3_INT	0x00000008
+#define EVDISTAT_EP4_INT	0x00000010
+#define EVDISTAT_EP5_INT	0x00000020
+#define EVDISTAT_EP6_INT	0x00000040
+#define EVDISTAT_EP7_INT	0x00000080
+#define EVDISTAT_SETUP_DAT_RCV	0x00010000
+#define EVDISTAT_PORTEN_CHANGE	0x00100000
+#define EVDISTAT_PORTRST	0x80000000
+
+#define EVDIEN			0x0004
+
+#define EVDISTAT_MASK	(EVDISTAT_SETUP_DAT_RCV | EVDISTAT_PORTEN_CHANGE | \
+			 EVDISTAT_PORTRST | EVDISTAT_ALL_EP_INT)
+#define EVDIEN_MASK	(EVDISTAT_SETUP_DAT_RCV | EVDISTAT_PORTEN_CHANGE | \
+			 EVDISTAT_PORTRST | EVDISTAT_EP0_INT)
+
+#define EVDCS			0x0008
+#define EVDCS_CONNECT		0x00000001
+#define EVDCS_PORTENABLESTS	0x01000000
+
+#define EVDADDR			0x000c
+#define EVDSETUPL		0x0010
+#define EVDSETUPH		0x0014
+
+#define EVDEPCC				0x0000
+#define EVDEPCC_EPENABLE		0x00000001
+#define EVDEPCC_CFGINOUT		0x00000002
+#define EVDEPCC_DT_RESET		0x00000004
+#define EVDEPCC_DISARMCMD		0x00000020
+#define EVDEPCC_STALL			0x00000080
+#define EVDEPCC_TXN_PER_UFRAME_MASK	0x00030000
+#define EVDEPCC_TXN_PER_UFRAME(val)	((val) << 16)
+#define EVDEPCC_EP_TYPE_MASK		0x000C0000
+#define EVDEPCC_EP_TYPE(val)		((val) << 18)
+#define EVDEPCC_EP_SIZE_MASK		0x00700000
+#define EVDEPCC_EP_SIZE(val)		((val) << 20)
+
+#define EP_TYPE_CONTROL	0x00
+#define EP_TYPE_BULK	0x01
+#define EP_TYPE_INT	0x02
+#define EP_TYPE_ISOC	0x03
+
+#define EP_IN	0x01
+#define EP_OUT	0x00
+
+#define EVDEPSTS		0x0004
+#define EVDEPSTS_DONE		0x00000001
+#define EVDEPSTS_SHORT		0x00000002
+#define EVDEPSTS_STALLDET	0x00000004
+#define EVDEPSTS_BUFARMED	0x00010000
+
+#define EVDEPEVTEN		0x0008
+#define EVDEPEVTEN_DONE		0x00000001
+#define EVDEPEVTEN_SHORT	0x00000002
+#define EVDEPEVTEN_STALLDET	0x00000004
+#define EVDEPADDR		0x000c
+#define EVDEPLEN		0x0010
+#define EVDEPNTX		0x0014
+
+#define GXP_UDC_MAX_NUM_EP			8
+#define GXP_UDC_MAX_NUM_FLEX_EP			16
+#define GXP_UDC_MAX_NUM_VDEVICE			8
+#define GXP_UDC_MAX_NUM_FLEX_EP_PER_VDEV	7
+
+static bool udcg_init_done;
+
+static const char * const gxp_udc_name[] = {
+	"gxp-udc0", "gxp-udc1", "gxp-udc2", "gxp-udc3",
+	"gxp-udc4", "gxp-udc5", "gxp-udc6", "gxp-udc7"};
+
+static const char * const gxp_udc_ep_name[] = {
+	"ep0", "ep1", "ep2", "ep3", "ep4", "ep5", "ep6", "ep7"};
+
+struct gxp_udc_req {
+	struct usb_request req;
+	struct list_head queue;
+};
+
+struct gxp_udc_ep {
+	void __iomem *base;
+	struct gxp_udc_drvdata *drvdata;
+
+	struct usb_ep ep;
+	struct list_head queue;
+	unsigned char epnum;
+	unsigned char type;
+	bool stall;
+	bool wedged;
+	int is_in;
+};
+
+struct gxp_udc_drvdata {
+	void __iomem *base;
+	struct platform_device *pdev;
+	struct regmap *udcg_map;
+	struct gxp_udc_ep ep[GXP_UDC_MAX_NUM_EP];
+
+	int irq;
+	struct usb_gadget gadget;
+	struct usb_gadget_driver *driver;
+
+	u32 vdevnum;
+	u32 fepnum;
+	u32 devaddr;
+
+	__le16	ep0_data;
+	struct usb_request *ep0_req;
+	bool deffer_set_address;
+
+	/* This lock is used to protect the drvdata structure access */
+	spinlock_t	lock;
+};
+
+static void gxp_udc_out_0byte_status(struct gxp_udc_ep *ep);
+static void gxp_udc_in_0byte_status(struct gxp_udc_ep *ep);
+
+static unsigned char gxp_udc_femap_read(struct gxp_udc_drvdata *drvdata,
+					int fep)
+{
+	unsigned int value;
+	int i = fep & 0x03;
+
+	regmap_read(drvdata->udcg_map, EVFEMAP + (fep & ~0x03), &value);
+	value = (value >> (8 * i)) & 0xff;
+
+	return  (unsigned char)value;
+}
+
+static void gxp_udc_femap_write(struct gxp_udc_drvdata *drvdata, int fep,
+				unsigned char value)
+{
+	unsigned int reg;
+	unsigned int tmp = value;
+	int i = fep & 0x03;
+
+	regmap_read(drvdata->udcg_map, EVFEMAP + (fep & ~0x03), &reg);
+	tmp = tmp << (8 * i);
+	reg &= ~(0xff << (8 * i));
+	reg |= tmp;
+	regmap_write(drvdata->udcg_map, EVFEMAP + (fep & ~0x03), reg);
+}
+
+static int gxp_udc_start_dma(struct gxp_udc_ep *ep, struct gxp_udc_req *req)
+{
+	writel(req->req.dma, ep->base + EVDEPADDR);
+	writel(req->req.length, ep->base + EVDEPLEN);
+
+	return 0;
+}
+
+static int gxp_udc_done_dma(struct gxp_udc_ep *ep, struct gxp_udc_req *req)
+{
+	u32 len;
+
+	len = readl(ep->base + EVDEPLEN);
+	req->req.actual = req->req.length - len;
+
+	if (len && ep->is_in) {
+		/* remaining data to send, rearm again */
+		writel(len, ep->base + EVDEPLEN);
+		return 0;
+	}
+	return 1;
+}
+
+static u32 evdepcc_ep_type(int value)
+{
+	switch (value) {
+	case USB_ENDPOINT_XFER_CONTROL:
+		/* control */
+		return EP_TYPE_CONTROL;
+
+	case USB_ENDPOINT_XFER_ISOC:
+		/* isochronous */
+		return EP_TYPE_ISOC;
+
+	case USB_ENDPOINT_XFER_BULK:
+		/* bulk */
+		return EP_TYPE_BULK;
+
+	case USB_ENDPOINT_XFER_INT:
+		/* interrupt */
+		return EP_TYPE_INT;
+
+	default:
+		return 0;
+	}
+}
+
+static u32 evdepcc_ep_size(int value)
+{
+	switch (value) {
+	case 8:
+		return 0x00;
+	case 16:
+		return 0x01;
+	case 32:
+		return 0x02;
+	case 64:
+		return 0x03;
+	case 128:
+		return 0x04;
+	case 256:
+		return 0x05;
+	case 512:
+		return 0x06;
+	case 1024:
+	default:
+		return 0x07;
+	}
+}
+
+static int gxp_udc_ep_init(struct gxp_udc_ep *ep, int type, int dir_in,
+			   int size)
+{
+	u32 val;
+	u32 tmp;
+
+	ep->is_in = dir_in;
+	ep->type = type;
+	ep->ep.maxpacket = size;
+
+	val = readl(ep->base + EVDEPCC);
+	if (dir_in) {
+		/* to host */
+		val |= EVDEPCC_CFGINOUT;
+	} else {
+		/* to device */
+		val &= ~EVDEPCC_CFGINOUT;
+	}
+
+	tmp = evdepcc_ep_type(type);
+	val &= ~EVDEPCC_EP_TYPE_MASK;
+	val |= EVDEPCC_EP_TYPE(tmp);
+
+	tmp = evdepcc_ep_size(size);
+	val &= ~EVDEPCC_EP_SIZE_MASK;
+	val |= EVDEPCC_EP_SIZE(tmp);
+
+	val &= ~EVDEPCC_TXN_PER_UFRAME_MASK;
+	if (type == USB_ENDPOINT_XFER_INT ||
+	    type == USB_ENDPOINT_XFER_ISOC) {
+		val |= EVDEPCC_TXN_PER_UFRAME(1);
+	}
+
+	val |= EVDEPCC_EPENABLE;
+	writel(val, ep->base + EVDEPCC);
+
+	val = readl(ep->base + EVDEPSTS);
+	val &= ~(EVDEPSTS_DONE | EVDEPSTS_SHORT | EVDEPSTS_STALLDET);
+	writel(val, ep->base + EVDEPSTS);
+
+	val = readl(ep->base + EVDEPEVTEN);
+	val |= EVDEPEVTEN_DONE;
+	val |= EVDEPEVTEN_SHORT;
+	val |= EVDEPEVTEN_STALLDET;
+	writel(val, ep->base + EVDEPEVTEN);
+
+	return 0;
+}
+
+static struct usb_request *gxp_udc_ep_alloc_request(struct usb_ep *_ep,
+						    gfp_t gfp_flags)
+{
+	struct gxp_udc_req *req;
+	struct gxp_udc_ep *ep;
+
+	req = kzalloc(sizeof(*req), gfp_flags);
+	if (!req)
+		return NULL;
+
+	ep = container_of(_ep, struct gxp_udc_ep, ep);
+	pr_debug("%s: ep%d\n", __func__, ep->epnum);
+
+	INIT_LIST_HEAD(&req->queue);
+
+	return &req->req;
+}
+
+static void gxp_udc_ep_free_request(struct usb_ep *_ep,
+				    struct usb_request *_req)
+{
+	struct gxp_udc_req *req;
+	struct gxp_udc_ep *ep;
+
+	if (!_req)
+		return;
+
+	ep = container_of(_ep, struct gxp_udc_ep, ep);
+	pr_debug("%s: ep%d\n", __func__, ep->epnum);
+
+	req = container_of(_req, struct gxp_udc_req, req);
+	WARN_ON(!list_empty(&req->queue));
+	kfree(req);
+}
+
+static int gxp_udc_ep_queue(struct usb_ep *_ep, struct usb_request *_req,
+			    gfp_t gfp_flags)
+{
+	struct gxp_udc_req *req;
+	struct gxp_udc_ep *ep;
+	unsigned long flags;
+	u32 val;
+	int ret;
+
+	if (!_req || !_ep)
+		return -EINVAL;
+
+	ep = container_of(_ep, struct gxp_udc_ep, ep);
+	req = container_of(_req, struct gxp_udc_req, req);
+
+	if (!ep->drvdata->driver ||
+	    ep->drvdata->gadget.speed == USB_SPEED_UNKNOWN)
+		return -ESHUTDOWN;
+
+	pr_debug("%s: vdev%d ep%d\n",
+		 __func__, ep->drvdata->vdevnum, ep->epnum);
+
+	spin_lock_irqsave(&ep->drvdata->lock, flags);
+
+	if (ep->epnum == 0) {
+		val = readl(ep->base + EVDEPCC);
+		ep->is_in = (val & EVDEPCC_CFGINOUT) ? 1 : 0;
+
+		if (!_req->length) {
+			/* ep0 control write transaction no data stage. */
+			_req->status = 0;
+
+			if (_req->complete) {
+				spin_unlock(&ep->drvdata->lock);
+				usb_gadget_giveback_request(_ep, _req);
+				spin_lock(&ep->drvdata->lock);
+			}
+
+			gxp_udc_in_0byte_status(ep);
+			return 0;
+		}
+	}
+
+	ret = usb_gadget_map_request(&ep->drvdata->gadget,
+				     &req->req, ep->is_in);
+	if (ret) {
+		dev_dbg(&ep->drvdata->pdev->dev,
+			"usb_gadget_map_request failed ep%d\n", ep->epnum);
+		spin_unlock_irqrestore(&ep->drvdata->lock, flags);
+		return ret;
+	}
+
+	req->req.actual = 0;
+	req->req.status = -EINPROGRESS;
+
+	if (list_empty(&ep->queue)) {
+		list_add_tail(&req->queue, &ep->queue);
+		gxp_udc_start_dma(ep, req);
+	} else {
+		list_add_tail(&req->queue, &ep->queue);
+	}
+
+	spin_unlock_irqrestore(&ep->drvdata->lock, flags);
+
+	return 0;
+}
+
+static int gxp_udc_ep_dequeue(struct usb_ep *_ep, struct usb_request *_req)
+{
+	struct gxp_udc_req *req;
+	struct gxp_udc_ep *ep;
+	unsigned long flags;
+
+	if (!_ep || !_req)
+		return -EINVAL;
+
+	ep = container_of(_ep, struct gxp_udc_ep, ep);
+	req = container_of(_req, struct gxp_udc_req, req);
+
+	pr_debug("%s: vdev%d ep%d\n",
+		 __func__, ep->drvdata->vdevnum, ep->epnum);
+
+	spin_lock_irqsave(&ep->drvdata->lock, flags);
+
+	/* ensure the req is still queued on this ep */
+	list_for_each_entry(req, &ep->queue, queue) {
+		if (&req->req == _req)
+			break;
+	}
+	if (&req->req != _req) {
+		pr_debug("%s: vdev%d ep%d _req is not queued in this ep\n",
+			 __func__, ep->drvdata->vdevnum, ep->epnum);
+		spin_unlock_irqrestore(&ep->drvdata->lock, flags);
+		return -EINVAL;
+	}
+
+	if (ep->drvdata->gadget.speed == USB_SPEED_UNKNOWN)
+		_req->status = -ESHUTDOWN;
+	else
+		_req->status = -ECONNRESET;
+
+	/* remove req from queue */
+	list_del_init(&req->queue);
+	usb_gadget_unmap_request(&ep->drvdata->gadget, &req->req, ep->is_in);
+	if (req->req.complete) {
+		spin_unlock(&ep->drvdata->lock);
+		usb_gadget_giveback_request(_ep, _req);
+		spin_lock(&ep->drvdata->lock);
+	}
+
+	spin_unlock_irqrestore(&ep->drvdata->lock, flags);
+
+	return 0;
+}
+
+static int gxp_udc_ep_enable(struct usb_ep *_ep,
+			     const struct usb_endpoint_descriptor *desc)
+{
+	struct gxp_udc_ep *ep;
+	struct gxp_udc_drvdata *drvdata;
+	u32 val;
+
+	if (!_ep)
+		return -EINVAL;
+
+	ep = container_of(_ep, struct gxp_udc_ep, ep);
+	drvdata = ep->drvdata;
+
+	pr_debug("%s vdev%d ep%d\n", __func__, drvdata->vdevnum, ep->epnum);
+
+	if (!drvdata->driver || drvdata->gadget.speed == USB_SPEED_UNKNOWN) {
+		dev_err(&drvdata->pdev->dev,
+			"vdev%d ep enable failed no driver or speed unknown\n",
+			drvdata->vdevnum);
+		return -ESHUTDOWN;
+	}
+
+	if (usb_endpoint_num(desc) > GXP_UDC_MAX_NUM_EP) {
+		dev_err(&drvdata->pdev->dev,
+			"vdev%d ep enable failed ep%d is out of range(%d)\n",
+			drvdata->vdevnum, usb_endpoint_num(desc),
+			GXP_UDC_MAX_NUM_EP);
+		return -EINVAL;
+	}
+
+	ep->ep.desc = desc;
+
+	ep->stall = false;
+	ep->wedged = false;
+
+	/* setup ep according to the setting of desc */
+	gxp_udc_ep_init(ep, usb_endpoint_type(desc), usb_endpoint_dir_in(desc),
+			usb_endpoint_maxp(desc));
+
+	/* enable ep interrupt */
+	val = readl(drvdata->base + EVDIEN);
+	val |= 1 << ep->epnum;
+	writel(val, drvdata->base + EVDIEN);
+
+	return 0;
+}
+
+static int gxp_udc_ep_disable(struct usb_ep *_ep)
+{
+	struct gxp_udc_ep *ep;
+	struct gxp_udc_req *req;
+	unsigned long flags;
+	u32 val;
+
+	if (!_ep)
+		return -EINVAL;
+
+	if (!_ep->desc)
+		return -EINVAL;
+
+	_ep->desc = NULL;
+
+	ep = container_of(_ep, struct gxp_udc_ep, ep);
+	ep->stall = false;
+	ep->wedged = false;
+
+	pr_debug("%s vdev%d ep%d\n",
+		 __func__, ep->drvdata->vdevnum, ep->epnum);
+	spin_lock_irqsave(&ep->drvdata->lock, flags);
+
+	/* clean queue */
+	while (!list_empty(&ep->queue)) {
+		req = list_entry(ep->queue.next, struct gxp_udc_req, queue);
+		gxp_udc_ep_dequeue(&ep->ep, &req->req);
+	}
+
+	/* disable ep */
+	val = readl(ep->base + EVDEPCC);
+	val &= ~EVDEPCC_EPENABLE;
+	writel(val, ep->base + EVDEPCC);
+
+	/* disable interrupt */
+	val = readl(ep->drvdata->base + EVDIEN);
+	val &= ~(1 << ep->epnum);
+	writel(val, ep->drvdata->base + EVDIEN);
+
+	spin_unlock_irqrestore(&ep->drvdata->lock, flags);
+
+	return 0;
+}
+
+static int gxp_udc_ep_set_halt_and_wedge(struct usb_ep *_ep,
+					 int value, int wedge)
+{
+	struct gxp_udc_ep *ep;
+	struct gxp_udc_req *req;
+	u32 val;
+
+	if (!_ep)
+		return -EINVAL;
+
+	ep = container_of(_ep, struct gxp_udc_ep, ep);
+
+	pr_debug("vdev%d ep%d gxp_udc_ep_set_halt(%d)\n",
+		 ep->drvdata->vdevnum, ep->epnum, value);
+
+	val = readl(ep->base + EVDEPCC);
+
+	/* value = 1, halt on endpoint. 0, clear halt */
+	if (value) {
+		ep->stall = true;
+		if (wedge)
+			ep->wedged = true;
+
+		val |= EVDEPCC_STALL;
+		writel(val, ep->base + EVDEPCC);
+	} else {
+		ep->stall = false;
+		ep->wedged = false;
+
+		val &= ~EVDEPCC_STALL;
+		val |= EVDEPCC_DT_RESET;
+		writel(val, ep->base + EVDEPCC);
+
+		/*
+		 * resume dma if it is in endpoint and there is
+		 * request in queue when clear halt
+		 */
+		if (ep->is_in && !list_empty(&ep->queue) && !value) {
+			req = list_entry(ep->queue.next,
+					 struct gxp_udc_req, queue);
+			if (req)
+				gxp_udc_start_dma(ep, req);
+		}
+	}
+
+	return 0;
+}
+
+static int gxp_udc_ep_set_halt(struct usb_ep *_ep, int value)
+{
+	struct gxp_udc_ep *ep;
+
+	ep = container_of(_ep, struct gxp_udc_ep, ep);
+
+	pr_debug("%s: vdev%d ep%d value:%d\n",
+		 __func__, ep->drvdata->vdevnum, ep->epnum, value);
+	return gxp_udc_ep_set_halt_and_wedge(_ep, value, 0);
+}
+
+static int gxp_udc_ep_set_wedge(struct usb_ep *_ep)
+{
+	struct gxp_udc_ep *ep;
+
+	ep = container_of(_ep, struct gxp_udc_ep, ep);
+
+	pr_debug("%s: vdev%d ep%d\n",
+		 __func__, ep->drvdata->vdevnum, ep->epnum);
+	return gxp_udc_ep_set_halt_and_wedge(_ep, 1, 1);
+}
+
+static const struct usb_ep_ops gxp_udc_ep_ops = {
+	.enable = gxp_udc_ep_enable,
+	.disable = gxp_udc_ep_disable,
+
+	.alloc_request = gxp_udc_ep_alloc_request,
+	.free_request = gxp_udc_ep_free_request,
+
+	.queue = gxp_udc_ep_queue,
+	.dequeue = gxp_udc_ep_dequeue,
+
+	.set_halt = gxp_udc_ep_set_halt,
+	.set_wedge	= gxp_udc_ep_set_wedge,
+};
+
+static int gxp_udc_connect(struct gxp_udc_drvdata *drvdata)
+{
+	unsigned int val;
+	unsigned char femap;
+	int i;
+	int j;
+
+	/* clear event before enable int */
+	val = readl(drvdata->base + EVDISTAT);
+	val |= EVDISTAT_MASK;
+	val |= (EVDISTAT_SETUP_DAT_RCV | EVDISTAT_PORTEN_CHANGE | EVDISTAT_PORTRST);
+	writel(val, drvdata->base + EVDISTAT);
+
+	/* ep0 init */
+	gxp_udc_ep_init(&drvdata->ep[0], USB_ENDPOINT_XFER_CONTROL, EP_IN, 64);
+
+	/* enable interrupt */
+	val = readl(drvdata->base + EVDIEN);
+	val |= EVDIEN_MASK;
+	writel(val, drvdata->base + EVDIEN);
+
+	/* enable vdevice interrupt */
+	regmap_update_bits(drvdata->udcg_map, EVGIEN, BIT(drvdata->vdevnum),
+			   BIT(drvdata->vdevnum));
+
+	/* initial flex ep */
+	for (j = 1; j < drvdata->fepnum + 1; j++) {
+		for (i = 0; i < GXP_UDC_MAX_NUM_FLEX_EP; i++) {
+			femap = gxp_udc_femap_read(drvdata, i);
+			/* if the flex ep is free (ep==0) */
+			if (!(femap & EVFEMAP_EPNUM_MASK)) {
+				femap &= ~EVFEMAP_EPNUM_MASK;
+				femap |= EVFEMAP_EPNUM(j);
+				femap &= ~EVFEMAP_VDEVNUM_MASK;
+				femap |= EVFEMAP_VDEVNUM(drvdata->vdevnum);
+				gxp_udc_femap_write(drvdata, i, femap);
+				break;
+			}
+		}
+		if (i == GXP_UDC_MAX_NUM_FLEX_EP) {
+			dev_err(&drvdata->pdev->dev,
+				"vdev%d cannot find a free flex ep\n",
+				drvdata->vdevnum);
+			return -ENODEV;
+		}
+	}
+
+	/* set connect bit, EVDCS */
+	val = readl(drvdata->base + EVDCS);
+
+	val |= EVDCS_CONNECT;
+	writel(val, drvdata->base + EVDCS);
+
+	return 0;
+}
+
+static int gxp_udc_disconnect(struct gxp_udc_drvdata *drvdata)
+{
+	unsigned int val;
+	unsigned char femap;
+	int i;
+
+	/* disable interrupt */
+	val = readl(drvdata->base + EVDIEN);
+	val &= ~EVDIEN_MASK;
+	writel(val, drvdata->base + EVDIEN);
+
+	/* disable vdevice interrupt */
+	regmap_update_bits(drvdata->udcg_map, EVGIEN, BIT(drvdata->vdevnum), 0);
+
+	/* clear connect bit, EVDCS */
+	val = readl(drvdata->base + EVDCS);
+	val &= ~EVDCS_CONNECT;
+	writel(val, drvdata->base + EVDCS);
+
+	/* free flex ep */
+	for (i = 0; i < GXP_UDC_MAX_NUM_FLEX_EP; i++) {
+		femap = gxp_udc_femap_read(drvdata, i);
+		if (EVFEMAP_VDEVNUM(drvdata->vdevnum) ==
+				(femap & EVFEMAP_VDEVNUM_MASK)) {
+			gxp_udc_femap_write(drvdata, i, 0);
+		}
+	}
+
+	return 0;
+}
+
+static int gxp_udc_start(struct usb_gadget *gadget,
+			 struct usb_gadget_driver *driver)
+{
+	struct gxp_udc_drvdata *drvdata;
+
+	if (!gadget)
+		return -ENODEV;
+
+	drvdata = container_of(gadget, struct gxp_udc_drvdata, gadget);
+	spin_lock(&drvdata->lock);
+
+	if (drvdata->driver) {
+		dev_err(&drvdata->pdev->dev,
+			"vdev%d start failed driver!=NULL\n", drvdata->vdevnum);
+
+		spin_unlock(&drvdata->lock);
+		return -EBUSY;
+	}
+
+	drvdata->deffer_set_address = false;
+
+	/* hook up the driver */
+	driver->driver.bus = NULL;
+	drvdata->driver = driver;
+
+	gxp_udc_connect(drvdata);
+
+	spin_unlock(&drvdata->lock);
+	return 0;
+}
+
+static int gxp_udc_stop(struct usb_gadget *gadget)
+{
+	struct gxp_udc_drvdata *drvdata;
+
+	if (!gadget)
+		return -ENODEV;
+
+	drvdata = container_of(gadget, struct gxp_udc_drvdata, gadget);
+	spin_lock(&drvdata->lock);
+
+	gxp_udc_disconnect(drvdata);
+	drvdata->gadget.speed = USB_SPEED_UNKNOWN;
+	drvdata->driver = NULL;
+
+	spin_unlock(&drvdata->lock);
+	return 0;
+}
+
+static const struct usb_gadget_ops gxp_udc_gadget_ops = {
+	.udc_start	= gxp_udc_start,
+	.udc_stop	= gxp_udc_stop,
+};
+
+static void gxp_udc_out_0byte_status(struct gxp_udc_ep *ep)
+{
+	u32 evdepcc;
+
+	/* out */
+	evdepcc = readl(ep->base + EVDEPCC);
+	evdepcc &= ~EVDEPCC_CFGINOUT;
+	writel(evdepcc, ep->base + EVDEPCC);
+
+	/* 0 len */
+	writel(0, ep->base + EVDEPLEN);
+}
+
+static void gxp_udc_in_0byte_status(struct gxp_udc_ep *ep)
+{
+	u32 evdepcc;
+
+	/* in */
+	evdepcc = readl(ep->base + EVDEPCC);
+	evdepcc |= EVDEPCC_CFGINOUT;
+	writel(evdepcc, ep->base + EVDEPCC);
+
+	/* 0 len */
+	writel(0, ep->base + EVDEPLEN);
+}
+
+static int gxp_udc_ep_nuke(struct gxp_udc_ep *ep)
+{
+	u32 evdepcc;
+	struct gxp_udc_req *req;
+
+	if (!ep)
+		return -EINVAL;
+
+	/* disarm dma */
+	evdepcc = readl(ep->base + EVDEPCC);
+	evdepcc |= EVDEPCC_DISARMCMD;
+	writel(evdepcc, ep->base + EVDEPCC);
+
+	while (!list_empty(&ep->queue)) {
+		req = list_first_entry(&ep->queue, struct gxp_udc_req, queue);
+		gxp_udc_ep_dequeue(&ep->ep, &req->req);
+	}
+
+	return 0;
+}
+
+static int gxp_udc_set_feature(struct gxp_udc_drvdata *drvdata,
+			       struct usb_ctrlrequest *ctrl)
+{
+	struct gxp_udc_ep *ep;
+
+	if (ctrl->bRequestType == USB_RECIP_ENDPOINT) {
+		ep = &drvdata->ep[ctrl->wIndex & USB_ENDPOINT_NUMBER_MASK];
+		if (le16_to_cpu(ctrl->wValue) == USB_ENDPOINT_HALT) {
+			gxp_udc_ep_set_halt(&ep->ep, 1);
+			return 1;
+		}
+	}
+	return 0;
+}
+
+static int gxp_udc_clear_feature(struct gxp_udc_drvdata *drvdata,
+				 struct usb_ctrlrequest *ctrl)
+{
+	struct gxp_udc_ep *ep;
+
+	if (ctrl->bRequestType == USB_RECIP_ENDPOINT) {
+		ep = &drvdata->ep[ctrl->wIndex & USB_ENDPOINT_NUMBER_MASK];
+		if (le16_to_cpu(ctrl->wValue) == USB_ENDPOINT_HALT) {
+			if (ep->wedged)
+				gxp_udc_ep_set_halt(&ep->ep, 0);
+			return 1;
+		}
+	}
+	return 0;
+}
+
+static int gxp_udc_get_status(struct gxp_udc_drvdata *drvdata,
+			      struct usb_ctrlrequest *ctrl)
+{
+	int ret;
+	u32 evdepcc;
+
+	switch (ctrl->bRequestType & USB_RECIP_MASK) {
+	case USB_RECIP_DEVICE:
+		/* fill the req to send */
+		drvdata->ep0_data = 1;
+		drvdata->ep0_req->length = 2;
+		drvdata->ep0_req->buf = &drvdata->ep0_data;
+		gxp_udc_ep_queue(&drvdata->ep[0].ep, drvdata->ep0_req,
+				 GFP_KERNEL);
+		ret = 1;
+		break;
+
+	case USB_RECIP_ENDPOINT:
+		evdepcc = readl(drvdata->ep[ctrl->wIndex &
+			USB_ENDPOINT_NUMBER_MASK].base + EVDEPCC);
+		/* fill the req to send */
+		if (evdepcc & EVDEPCC_STALL)
+			drvdata->ep0_data = 1;
+		else
+			drvdata->ep0_data = 0;
+		drvdata->ep0_req->length = 2;
+		drvdata->ep0_req->buf = &drvdata->ep0_data;
+		gxp_udc_ep_queue(&drvdata->ep[0].ep, drvdata->ep0_req,
+				 GFP_KERNEL);
+		ret = 1;
+		break;
+
+	default:
+		ret = 0;
+		break;
+	}
+
+	return ret;
+}
+
+static void gxp_udc_handle_ep0_int(struct gxp_udc_ep *ep)
+{
+	struct gxp_udc_drvdata *drvdata = ep->drvdata;
+	struct gxp_udc_req *req;
+	u32 evdepsts;
+	u32 evdepcc;
+
+	evdepcc = readl(ep->base + EVDEPCC);
+	evdepsts  = readl(ep->base + EVDEPSTS);
+	writel(evdepsts, ep->base + EVDEPSTS); /* write 1 to clear status */
+
+	if (evdepsts & EVDEPSTS_STALLDET) {
+		pr_debug("ep%d get stalldet int\n", ep->epnum);
+		evdepcc &= ~EVDEPCC_STALL;
+		evdepcc |= EVDEPCC_DT_RESET;
+		writel(evdepcc, ep->base + EVDEPCC);
+	}
+
+	if (evdepsts & EVDEPSTS_DONE || evdepsts & EVDEPSTS_SHORT) {
+		if (drvdata->deffer_set_address) {
+			writel(drvdata->devaddr, drvdata->base + EVDADDR);
+			drvdata->deffer_set_address = false;
+		} else if (!list_empty(&ep->queue)) {
+			req = list_entry(ep->queue.next,
+					 struct gxp_udc_req, queue);
+			if (gxp_udc_done_dma(ep, req)) {
+				/* req is done */
+				list_del_init(&req->queue);
+				usb_gadget_unmap_request(&ep->drvdata->gadget,
+							 &req->req, ep->is_in);
+				if (req->req.complete) {
+					req->req.status = 0;
+					usb_gadget_giveback_request(&ep->ep,
+								    &req->req);
+				}
+
+				if (!list_empty(&ep->queue)) {
+					/* process next req in queue */
+					req = list_entry(ep->queue.next,
+							 struct gxp_udc_req,
+							 queue);
+					gxp_udc_start_dma(ep, req);
+					pr_debug("ep0 queue is not empty after done a req!!\n");
+				} else {
+					/* last req completed -> status stage */
+					if (evdepcc & EVDEPCC_CFGINOUT) {
+						/* data in -> out status */
+						gxp_udc_out_0byte_status(ep);
+					} else {
+						/* data out ->in status */
+						gxp_udc_in_0byte_status(ep);
+					}
+				}
+			}
+		}
+	}
+}
+
+static void gxp_udc_handle_ep_int(struct gxp_udc_ep *ep)
+{
+	struct gxp_udc_req *req;
+	u32 evdepsts;
+	u32 evdepcc;
+
+	evdepsts  = readl(ep->base + EVDEPSTS);
+	writel(evdepsts, ep->base + EVDEPSTS); /* write 1 to clear status */
+
+	if (evdepsts & EVDEPSTS_STALLDET) {
+		pr_debug("ep%d get stalldet int\n", ep->epnum);
+		evdepcc = readl(ep->base + EVDEPCC);
+		evdepcc &= ~EVDEPCC_STALL;
+		evdepcc |= EVDEPCC_DT_RESET;
+		writel(evdepcc, ep->base + EVDEPCC);
+	}
+
+	if (evdepsts & EVDEPSTS_DONE || evdepsts & EVDEPSTS_SHORT) {
+		if (evdepsts & EVDEPSTS_SHORT)
+			pr_debug("ep%d get short int\n", ep->epnum);
+		if (evdepsts & EVDEPSTS_DONE)
+			pr_debug("ep%d get done int\n", ep->epnum);
+
+		if (!list_empty(&ep->queue)) {
+			req = list_entry(ep->queue.next,
+					 struct gxp_udc_req, queue);
+			if (gxp_udc_done_dma(ep, req)) {
+				/* req is done */
+				list_del_init(&req->queue);
+				usb_gadget_unmap_request(&ep->drvdata->gadget,
+							 &req->req, ep->is_in);
+				if (req->req.complete) {
+					req->req.status = 0;
+					usb_gadget_giveback_request(&ep->ep,
+								    &req->req);
+				}
+
+				if (!list_empty(&ep->queue)) {
+					/* process next req in queue */
+					req = list_entry(ep->queue.next,
+							 struct gxp_udc_req,
+							 queue);
+					gxp_udc_start_dma(ep, req);
+				}
+			}
+		}
+	}
+}
+
+static void gxp_udc_handle_setup_data_rcv(struct gxp_udc_drvdata *drvdata)
+{
+	struct usb_ctrlrequest ctrl = {0};
+	u32 *ptr;
+	u32 val;
+	int handled = 0;
+	int ret;
+
+	ptr = (u32 *)&ctrl;
+
+	ptr[0] = readl(drvdata->base + EVDSETUPL);
+	ptr[1] = readl(drvdata->base + EVDSETUPH);
+
+	if ((ctrl.bRequestType & USB_TYPE_MASK) == USB_TYPE_STANDARD) {
+		switch (ctrl.bRequest) {
+		case USB_REQ_SET_ADDRESS:
+			pr_debug("vdev%d get setup data USB_REQ_SET_ADDRESS\n",
+				 drvdata->vdevnum);
+			/*
+			 * this request is unique in that the device does
+			 * not set its address until after the completion
+			 * of the status stage.(ref: usb nutshell)
+			 */
+			drvdata->devaddr = ctrl.wValue & 0x7f;
+			drvdata->deffer_set_address = true;
+			gxp_udc_in_0byte_status(&drvdata->ep[0]);
+			handled = 1;
+			break;
+
+		case USB_REQ_SET_FEATURE:
+			pr_debug("vdev%d get setup data USB_REQ_SET_FEATURE\n",
+				 drvdata->vdevnum);
+			handled = gxp_udc_set_feature(drvdata, &ctrl);
+			break;
+
+		case USB_REQ_CLEAR_FEATURE:
+			pr_debug("vdev%d get setup data USB_REQ_CLEAR_FEATURE\n",
+				 drvdata->vdevnum);
+			handled = gxp_udc_clear_feature(drvdata, &ctrl);
+			break;
+
+		case USB_REQ_GET_STATUS:
+			pr_debug("vdev%d get setup data USB_REQ_GET_STATUS\n",
+				 drvdata->vdevnum);
+			handled = gxp_udc_get_status(drvdata, &ctrl);
+			break;
+
+		default:
+			handled = 0;
+			break;
+		}
+	}
+
+	/*
+	 * pass the request to upper layer driver code(composite.c)
+	 * if it is not handled by the code above.
+	 */
+	if (drvdata->driver && !handled) {
+		ret = drvdata->driver->setup(&drvdata->gadget, &ctrl);
+		if (ret < 0) {
+			dev_err(&drvdata->pdev->dev,
+				"setup failed, return %d\n", ret);
+			/* set ep0 to stall */
+			val = readl(drvdata->ep[0].base + EVDEPCC);
+			val |= EVDEPCC_STALL;
+			writel(val, drvdata->ep[0].base + EVDEPCC);
+			return;
+		}
+	}
+}
+
+static irqreturn_t gxp_udc_irq(int irq, void *_drvdata)
+{
+	struct gxp_udc_drvdata *drvdata = _drvdata;
+
+	u32 evgistat;
+	u32 evdistat;
+	u32 evdcs;
+	u32 i;
+
+	regmap_read(drvdata->udcg_map, EVGISTAT, &evgistat);
+	if (evgistat & (1 << drvdata->vdevnum)) {
+		evdistat = readl(drvdata->base + EVDISTAT);
+		while (evdistat & EVDISTAT_MASK) {
+			pr_debug("vdev%d get int = 0x%08x\n",
+				 drvdata->vdevnum, evdistat);
+
+			if (evdistat & EVDISTAT_PORTEN_CHANGE) {
+				evdcs = readl(drvdata->base + EVDCS);
+				drvdata->gadget.speed =
+					(evdcs & EVDCS_PORTENABLESTS) ?
+					USB_SPEED_HIGH : USB_SPEED_UNKNOWN;
+
+				pr_debug("vdev%d get port enable change int speed = %d\n",
+					 drvdata->vdevnum,
+					 drvdata->gadget.speed);
+
+				/*  write 1 to clear */
+				writel(EVDISTAT_PORTEN_CHANGE,
+				       drvdata->base + EVDISTAT);
+			}
+
+			if (evdistat & EVDISTAT_PORTRST) {
+				pr_debug("vdev%d get port rst int\n",
+					 drvdata->vdevnum);
+				writel(0, drvdata->base + EVDADDR);
+
+				for (i = 0; i < drvdata->fepnum + 1; i++)
+					gxp_udc_ep_nuke(&drvdata->ep[i]);
+
+				usb_gadget_udc_reset(&drvdata->gadget,
+						     drvdata->driver);
+
+				/* write 1 to clear */
+				writel(EVDISTAT_PORTRST,
+				       drvdata->base + EVDISTAT);
+			}
+
+			if (evdistat & EVDISTAT_SETUP_DAT_RCV) {
+				pr_debug("vdev%d get setup data rcv int\n",
+					 drvdata->vdevnum);
+					gxp_udc_handle_setup_data_rcv(drvdata);
+					/* write 1 to clear */
+					writel(EVDISTAT_SETUP_DAT_RCV,
+					       drvdata->base + EVDISTAT);
+			}
+			if (evdistat & 0x01)
+				gxp_udc_handle_ep0_int(&drvdata->ep[0]);
+
+			for (i = 1; i < GXP_UDC_MAX_NUM_EP; i++)
+				if (evdistat & (1 << i))
+					gxp_udc_handle_ep_int(&drvdata->ep[i]);
+
+			evdistat = readl(drvdata->base + EVDISTAT);
+		}
+		return IRQ_HANDLED;
+	}
+	return IRQ_NONE;
+}
+
+static int gxp_udc_init(struct gxp_udc_drvdata *drvdata)
+{
+	int i;
+	struct gxp_udc_ep *ep;
+
+	/* Disable device interrupt */
+	writel(0, drvdata->base + EVDIEN);
+
+	drvdata->gadget.max_speed = USB_SPEED_HIGH;
+	drvdata->gadget.speed = USB_SPEED_UNKNOWN;
+	drvdata->gadget.ops = &gxp_udc_gadget_ops;
+	drvdata->gadget.name = gxp_udc_name[drvdata->vdevnum];
+	drvdata->gadget.is_otg = 0;
+	drvdata->gadget.is_a_peripheral = 0;
+
+	drvdata->gadget.ep0 = &drvdata->ep[0].ep;
+	drvdata->ep0_req = gxp_udc_ep_alloc_request(&drvdata->ep[0].ep,
+						    GFP_KERNEL);
+
+	INIT_LIST_HEAD(&drvdata->gadget.ep_list);
+
+	for (i = 0; i < drvdata->fepnum + 1; i++) {
+		ep = &drvdata->ep[i];
+
+		ep->drvdata = drvdata;
+
+		INIT_LIST_HEAD(&ep->queue);
+		INIT_LIST_HEAD(&ep->ep.ep_list);
+		if (i > 0)
+			list_add_tail(&ep->ep.ep_list,
+				      &drvdata->gadget.ep_list);
+
+		usb_ep_set_maxpacket_limit(&ep->ep, (i > 0) ? 512 : 64);
+		ep->epnum = i;
+		ep->ep.name = gxp_udc_ep_name[i];
+		ep->ep.ops = &gxp_udc_ep_ops;
+		ep->base = drvdata->base + 0x20 * (i + 1);
+		if (i == 0) {
+			ep->ep.caps.type_control = true;
+		} else {
+			ep->ep.caps.type_iso = true;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
+		}
+
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;
+	}
+
+	return 0;
+}
+
+static void gxp_udcg_init(struct gxp_udc_drvdata *drvdata)
+{
+	int i;
+
+	if (!udcg_init_done) {
+		/* disable interrupt */
+		regmap_write(drvdata->udcg_map, EVGIEN, 0);
+
+		/* disable all flex ep map */
+		for (i = 0; i < GXP_UDC_MAX_NUM_FLEX_EP; i += 4)
+			regmap_write(drvdata->udcg_map, EVFEMAP + i, 0);
+
+		udcg_init_done = true;
+	}
+}
+
+static int gxp_udc_probe(struct platform_device *pdev)
+{
+	struct resource *res;
+	struct gxp_udc_drvdata *drvdata;
+	int ret;
+	u32 vdevnum;
+	u32 fepnum;
+
+	drvdata = devm_kzalloc(&pdev->dev, sizeof(struct gxp_udc_drvdata),
+			       GFP_KERNEL);
+	if (!drvdata)
+		return -ENOMEM;
+
+	platform_set_drvdata(pdev, drvdata);
+	drvdata->pdev = pdev;
+
+	spin_lock_init(&drvdata->lock);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	drvdata->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(drvdata->base))
+		return PTR_ERR(drvdata->base);
+
+	ret = platform_get_irq(pdev, 0);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "unable to obtain IRQ number\n");
+		return ret;
+	}
+	drvdata->irq = ret;
+
+	if (of_property_read_u32(pdev->dev.of_node, "vdevnum", &vdevnum)) {
+		dev_err(&pdev->dev,
+			"property vdevnum is undefined\n");
+		return -EINVAL;
+	}
+
+	if (vdevnum > GXP_UDC_MAX_NUM_VDEVICE) {
+		dev_err(&pdev->dev,
+			"property vdevnum(%d) is invalid\n", vdevnum);
+		return -EINVAL;
+	}
+	drvdata->vdevnum = vdevnum;
+
+	if (of_property_read_u32(pdev->dev.of_node, "fepnum", &fepnum)) {
+		dev_err(&pdev->dev, "property fepnum is undefined\n");
+		return -EINVAL;
+	}
+
+	if (fepnum > GXP_UDC_MAX_NUM_FLEX_EP_PER_VDEV) {
+		dev_err(&pdev->dev, "property fepnum(%d) is invalid\n", fepnum);
+		return -EINVAL;
+	}
+	drvdata->fepnum = fepnum;
+
+	drvdata->udcg_map = syscon_regmap_lookup_by_phandle(pdev->dev.of_node,
+							    "hpe,syscon-phandle");
+	if (IS_ERR(drvdata->udcg_map)) {
+		dev_err(&pdev->dev, "failed to map udcg_handle\n");
+		return -ENODEV;
+	}
+	gxp_udcg_init(drvdata);
+
+	gxp_udc_init(drvdata);
+	ret = usb_add_gadget_udc(&pdev->dev, &drvdata->gadget);
+	if (ret) {
+		dev_err(&pdev->dev, "add gadget failed\n");
+		return ret;
+	}
+
+	ret = devm_request_irq(&pdev->dev,
+			       drvdata->irq,
+			       gxp_udc_irq,
+			       IRQF_SHARED,
+			       gxp_udc_name[vdevnum],
+			       drvdata);
+
+	if (ret < 0) {
+		dev_err(&pdev->dev, "irq request failed\n");
+		return ret;
+	}
+
+	return 0;
+}
+
+static const struct of_device_id gxp_udc_of_match[] = {
+	{ .compatible = "hpe,gxp-udc" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, gxp_udc_of_match);
+
+static struct platform_driver gxp_udc_driver = {
+	.driver		= {
+		.name	= "gxp-udc",
+		.of_match_table = of_match_ptr(gxp_udc_of_match),
+	},
+	.probe		= gxp_udc_probe,
+};
+module_platform_driver(gxp_udc_driver);
+
+MODULE_AUTHOR("Richard Yu <richard.yu@hpe.com>");
+MODULE_DESCRIPTION("HPE GXP UDC Driver");
+MODULE_LICENSE("GPL");
-- 
2.17.1

[PATCH v1 2/7] dt-bindings: usb: hpe,gxp-udc: Add binding for gxp gadget

[richard.yu]

From: Richard Yu <richard.yu@hpe.com>

Create documentation for the hpe,gxp-udc binding to support access to
the virtual USB device.

Signed-off-by: Richard Yu <richard.yu@hpe.com>
---
 .../devicetree/bindings/usb/hpe,gxp-udc.yaml  | 57 +++++++++++++++++++
 1 file changed, 57 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/hpe,gxp-udc.yaml

diff --git a/Documentation/devicetree/bindings/usb/hpe,gxp-udc.yaml b/Documentation/devicetree/bindings/usb/hpe,gxp-udc.yaml
new file mode 100644
index 000000000000..f1ec4df8c3d3
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/hpe,gxp-udc.yaml
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/hpe,gxp-udc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: HPE GXP Gadget Universal Device Controller (UDC)
+
+maintainers:
+  - Richard Yu <richard.yu@hpe.com>
+  - Jean-Marie Verdun <verdun@hpe.com>
+  - Nick Hawkins <nick.hawkins@hpe.com>
+
+properties:
+  compatible:
+    const: hpe,gxp-udc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  vdevnum:
+    description:
+      virtual device number.
+
+  fepnum:
+    description:
+      number of the flexible end-points this device is needed.
+
+  hpe,syscon-phandle:
+    $ref: '/schemas/types.yaml#/definitions/phandle'
+    description:
+      Phandle to the gxp vEHCI controller access vDevice registers.
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - vdevnum
+  - fepnum
+  - hpe,syscon-phandle
+
+additionalProperties: false
+
+examples:
+  - |
+    udc@80401000 {
+      compatible = "hpe,gxp-udc";
+      reg = <0x80401000 0x1000>;
+      interrupts = <13>;
+      interrupt-parent = <&vic1>;
+      vdevnum = <0>;
+      fepnum = <7>;
+      hpe,syscon-phandle = <&udc_system_controller>;
+    };
-- 
2.17.1

Re: [PATCH v1 2/7] dt-bindings: usb: hpe,gxp-udc: Add binding for gxp gadget

[Krzysztof Kozlowski]

On 03/11/2022 12:06, richard.yu@hpe.com wrote:
> From: Richard Yu <richard.yu@hpe.com>
> 

Subject: Drop redundant second "binding" word.

> Create documentation for the hpe,gxp-udc binding to support access to
> the virtual USB device.
> 
> Signed-off-by: Richard Yu <richard.yu@hpe.com>
> ---
>  .../devicetree/bindings/usb/hpe,gxp-udc.yaml  | 57 +++++++++++++++++++
>  1 file changed, 57 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/usb/hpe,gxp-udc.yaml
> 
> diff --git a/Documentation/devicetree/bindings/usb/hpe,gxp-udc.yaml b/Documentation/devicetree/bindings/usb/hpe,gxp-udc.yaml
> new file mode 100644
> index 000000000000..f1ec4df8c3d3
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/hpe,gxp-udc.yaml
> @@ -0,0 +1,57 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/usb/hpe,gxp-udc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: HPE GXP Gadget Universal Device Controller (UDC)
> +
> +maintainers:
> +  - Richard Yu <richard.yu@hpe.com>
> +  - Jean-Marie Verdun <verdun@hpe.com>
> +  - Nick Hawkins <nick.hawkins@hpe.com>
> +
> +properties:
> +  compatible:
> +    const: hpe,gxp-udc
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  vdevnum:
> +    description:
> +      virtual device number.

That's unusual property... Why numbering devices is part of DT (hardware
description)?

> +
> +  fepnum:
> +    description:
> +      number of the flexible end-points this device is needed.

Similar question.

BTW, if you end sentence with '.', it means it is an sentence, so you
need to start it with capital letter.

> +
> +  hpe,syscon-phandle:

phandle is redudant. You need rather specific name, so "hpe,ehci-syscon"
or whatever it is.


> +    $ref: '/schemas/types.yaml#/definitions/phandle'


No quotes.

> +    description:
> +      Phandle to the gxp vEHCI controller access vDevice registers.

Drop "Phandle to"

Isn't "gxp" a GXP?

> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - vdevnum
> +  - fepnum
> +  - hpe,syscon-phandle
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    udc@80401000 {

Node name "usb", I think it is more popular for USB controllers.

> +      compatible = "hpe,gxp-udc";
> +      reg = <0x80401000 0x1000>;
> +      interrupts = <13>;
> +      interrupt-parent = <&vic1>;
> +      vdevnum = <0>;
> +      fepnum = <7>;
> +      hpe,syscon-phandle = <&udc_system_controller>;
> +    };

Best regards,
Krzysztof

RE: [PATCH v1 2/7] dt-bindings: usb: hpe,gxp-udc: Add binding for gxp gadget

[Yu, Richard]

Hi Mr. Kozlowski,

Thank you very much for your quick review and feedbacks.

I will modify the patches based on your feedback accordingly.

On this specific patch, you have questions on how we defined the device/gadget configurations: vdevnum and fepnum.

Please see my answers following the questions:

> +  vdevnum:
> +    description:
> +      virtual device number.

That's unusual property... Why numbering devices is part of DT (hardware description)?

>> Richard: In HPE GXP virtual EHCI controller chipset, it can support up to 8 virtual devices(gadgets). Each device/gadget will be represented by a bit in 8 bits register. For example, the interrupt register bit 0 indicates the interrupt from device 0, bit 1 for device 1 ... so on.  When an user defines a device/gadget, he/she can define the device number as between 0 and 7. Thus, the driver can up to the bit position. That is why we have numbering devices as port of DT.

> +
> +  fepnum:
> +    description:
> +      number of the flexible end-points this device is needed.

Similar question.

>>Richard: In HPE GXP virtual EHCI Controller chipset, there is a flexible EP pool. Each flexible EP has its own mapping register. The mapping register bit 0 to 3 is for device number (vdevnum) and bit 4 to 7 is for EP number inside the device. The device driver configures the mapping register to assign a flexible EP to a specific device.  Here, "fepnum" is the input letting the driver know how many EP is needed for this device/gadget.

Hope I have answered your questions on "vdevnum" and "fepnum". 

I will modify this patch to address your other review feedback.

Thank you very much again.

Richard.

-----Original Message-----
From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> 
Sent: Thursday, November 3, 2022 11:30 AM
To: Yu, Richard <richard.yu@hpe.com>; Verdun, Jean-Marie <verdun@hpe.com>; Hawkins, Nick <nick.hawkins@hpe.com>; gregkh@linuxfoundation.org; robh+dt@kernel.org; krzysztof.kozlowski+dt@linaro.org; linux@armlinux.org.uk; balbi@kernel.org; linux-usb@vger.kernel.org; devicetree@vger.kernel.org; linux-kernel@vger.kernel.org; linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v1 2/7] dt-bindings: usb: hpe,gxp-udc: Add binding for gxp gadget

On 03/11/2022 12:06, richard.yu@hpe.com wrote:
> From: Richard Yu <richard.yu@hpe.com>
> 

Subject: Drop redundant second "binding" word.

> Create documentation for the hpe,gxp-udc binding to support access to 
> the virtual USB device.
> 
> Signed-off-by: Richard Yu <richard.yu@hpe.com>
> ---
>  .../devicetree/bindings/usb/hpe,gxp-udc.yaml  | 57 
> +++++++++++++++++++
>  1 file changed, 57 insertions(+)
>  create mode 100644 
> Documentation/devicetree/bindings/usb/hpe,gxp-udc.yaml
> 
> diff --git a/Documentation/devicetree/bindings/usb/hpe,gxp-udc.yaml 
> b/Documentation/devicetree/bindings/usb/hpe,gxp-udc.yaml
> new file mode 100644
> index 000000000000..f1ec4df8c3d3
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/hpe,gxp-udc.yaml
> @@ -0,0 +1,57 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause %YAML 1.2
> +---
> +$id: 
> +INVALID URI REMOVED
> +-udc.yaml*__;Iw!!NpxR!lKDMWE_W38KLY2gXH0dY1rG-bU4JwIyme_DMzeppYO9DQ1S
> +wvXeID3RDEEuKBSG81_hsD5gntF_elZhC9yiXT-MvFA$
> +$schema: 
> +INVALID URI REMOVED
> +aml*__;Iw!!NpxR!lKDMWE_W38KLY2gXH0dY1rG-bU4JwIyme_DMzeppYO9DQ1SwvXeID
> +3RDEEuKBSG81_hsD5gntF_elZhC9yi3VX-gPg$
> +
> +title: HPE GXP Gadget Universal Device Controller (UDC)
> +
> +maintainers:
> +  - Richard Yu <richard.yu@hpe.com>
> +  - Jean-Marie Verdun <verdun@hpe.com>
> +  - Nick Hawkins <nick.hawkins@hpe.com>
> +
> +properties:
> +  compatible:
> +    const: hpe,gxp-udc
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  vdevnum:
> +    description:
> +      virtual device number.

That's unusual property... Why numbering devices is part of DT (hardware description)?

> +
> +  fepnum:
> +    description:
> +      number of the flexible end-points this device is needed.

Similar question.

BTW, if you end sentence with '.', it means it is an sentence, so you need to start it with capital letter.

> +
> +  hpe,syscon-phandle:

phandle is redudant. You need rather specific name, so "hpe,ehci-syscon"
or whatever it is.


> +    $ref: '/schemas/types.yaml#/definitions/phandle'


No quotes.

> +    description:
> +      Phandle to the gxp vEHCI controller access vDevice registers.

Drop "Phandle to"

Isn't "gxp" a GXP?

> +
> +required:
> +  - compatible
> +  - reg
> +  - interrupts
> +  - vdevnum
> +  - fepnum
> +  - hpe,syscon-phandle
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    udc@80401000 {

Node name "usb", I think it is more popular for USB controllers.

> +      compatible = "hpe,gxp-udc";
> +      reg = <0x80401000 0x1000>;
> +      interrupts = <13>;
> +      interrupt-parent = <&vic1>;
> +      vdevnum = <0>;
> +      fepnum = <7>;
> +      hpe,syscon-phandle = <&udc_system_controller>;
> +    };

Best regards,
Krzysztof

Re: [PATCH v1 2/7] dt-bindings: usb: hpe,gxp-udc: Add binding for gxp gadget

[Krzysztof Kozlowski]

On 04/11/2022 16:03, Yu, Richard wrote:
> Hi Mr. Kozlowski,
> 
> Thank you very much for your quick review and feedbacks.
> 
> I will modify the patches based on your feedback accordingly.
> 
> On this specific patch, you have questions on how we defined the device/gadget configurations: vdevnum and fepnum.
> 
> Please see my answers following the questions:
> 
>> +  vdevnum:
>> +    description:
>> +      virtual device number.
> 
> That's unusual property... Why numbering devices is part of DT (hardware description)?
> 
>>> Richard: In HPE GXP virtual EHCI controller chipset, it can support up to 8 virtual devices(gadgets). Each device/gadget will be represented by a bit in 8 bits register. For example, the interrupt register bit 0 indicates the interrupt from device 0, bit 1 for device 1 ... so on.  When an user defines a device/gadget, he/she can define the device number as between 0 and 7. Thus, the driver can up to the bit position. That is why we have numbering devices as port of DT.
> 
>> +
>> +  fepnum:
>> +    description:
>> +      number of the flexible end-points this device is needed.
> 
> Similar question.
> 
>>> Richard: In HPE GXP virtual EHCI Controller chipset, there is a flexible EP pool. Each flexible EP has its own mapping register. The mapping register bit 0 to 3 is for device number (vdevnum) and bit 4 to 7 is for EP number inside the device. The device driver configures the mapping register to assign a flexible EP to a specific device.  Here, "fepnum" is the input letting the driver know how many EP is needed for this device/gadget.
> 
> Hope I have answered your questions on "vdevnum" and "fepnum". 

Unfortunately I don't see your answers... Or actually I am not sure what
is the answer and what is not. What is unusual, you did not quote my
email but quoted something else. Please send it again, but following
normal mailing list netiquette for replies.

Here is one:

https://en.opensuse.org/openSUSE:Mailing_list_netiquette

Just don't use corporate style of emails on mailing list. We usually
cannot handle them...

Best regards,
Krzysztof

RE: [PATCH v1 2/7] dt-bindings: usb: hpe,gxp-udc: Add binding for gxp gadget

[Yu, Richard]

Hi Mr. Kozlowski,

> > +
> > +  vdevnum:
> > +    description:
> > +      virtual device number.

> That's unusual property... Why numbering devices is part of DT (hardware description)?

In HPE GXP virtual EHCI controller chipset, it can support up to 8 virtual devices(gadgets). Each device/gadget will be represented by a bit in 8 bits register. For example, the interrupt register bit 0 indicates the interrupt from device 0, bit 1 for device 1 ... so on.  When a user defines a device/gadget, he/she can define the device number as between 0 and 7. Thus, the driver can look up to the bit position. That is why we have numbering devices as part of DT.

> > +
> > +  fepnum:
> > +    description:
> > +      number of the flexible end-points this device is needed.

> Similar question.

In HPE GXP virtual EHCI Controller chipset, there is a flexible End-Point(EP) pool. Each flexible EP has its own mapping register. The mapping register bit 0 to 3 is for device number (vdevnum) and bit 4 to 7 is for EP number inside the device. The device driver configures the mapping register to assign a flexible EP to a specific device.  Here, "fepnum" is the input letting the driver know how many EPs are needed for this device/gadget.

Thanks

Richard.

Re: [PATCH v1 2/7] dt-bindings: usb: hpe,gxp-udc: Add binding for gxp gadget

[Krzysztof Kozlowski]

On 07/11/2022 21:16, Yu, Richard wrote:
> Hi Mr. Kozlowski,
> 
>>> +
>>> +  vdevnum:
>>> +    description:
>>> +      virtual device number.
> 
>> That's unusual property... Why numbering devices is part of DT (hardware description)?
> 
> In HPE GXP virtual EHCI controller chipset, it can support up to 8 virtual devices(gadgets). Each device/gadget will be represented by a bit in 8 bits register. For example, the interrupt register bit 0 indicates the interrupt from device 0, bit 1 for device 1 ... so on.  When a user defines a device/gadget, he/she can define the device number as between 0 and 7. Thus, the driver can look up to the bit position. That is why we have numbering devices as part of DT.

Wrap your lines properly, it's impossible to reply in-line to such messages.

Then how do you specify two devices? You allow here only one, right?

Which bit in which register? Your devices have separate address space,
so why they cannot poke the same register, right? Then just always set
it to 0...

I might miss here something but so far it looks to me like some hacky
description matching the driver, not hardware, not existing bindings.

> 
>>> +
>>> +  fepnum:
>>> +    description:
>>> +      number of the flexible end-points this device is needed.
> 
>> Similar question.
> 
> In HPE GXP virtual EHCI Controller chipset, there is a flexible End-Point(EP) pool. Each flexible EP has its own mapping register. The mapping register bit 0 to 3 is for device number (vdevnum) and bit 4 to 7 is for EP number inside the device. The device driver configures the mapping register to assign a flexible EP to a specific device.  Here, "fepnum" is the input letting the driver know how many EPs are needed for this device/gadget.

Nope. So you create here some weird IDs to poke into syscon register.
First, syscon has offset if you need. You could treat it maybe as bits?
I don't know... but even then your design is poor - two devices changing
the same register. Even though it is sunchronized by regmap, it is
conflicting, obfuscated access.

Best regards,
Krzysztof

RE: [PATCH v1 2/7] dt-bindings: usb: hpe,gxp-udc: Add binding for gxp gadget

[Yu, Richard]

Hi Mr. Kozlowski,

Thank you very much for inputs.

>>>> +
>>>> +  vdevnum:
>>>> +    description:
>>>> +      virtual device number.
> 
>>> That's unusual property... Why numbering devices is part of DT (hardware description)?
> 
>>  In HPE GXP virtual EHCI controller chipset, it can support up to 8  
>> virtual devices(gadgets). Each device/gadget will be represented  by 
>> a bit in 8 bits register. For example, the interrupt register bit 0  
>> indicates the interrupt from device 0, bit 1 for device 1 ... so on.
>> When a user defines a device/gadget, he/she can define the device 
>> number as between 0 and 7. Thus, the driver can look up to the bit 
>> position. That is why we have numbering devices as part of DT.

> Wrap your lines properly, it's impossible to reply in-line to such messages.

Sorry for the improper wrapping. Hope the above fixed the problem.

> Then how do you specify two devices? You allow here only one, right?

In our current design, to specify two devices, we added the gadget 
structure into the device tree, such as  gadget0:udc@80401000{}; gadget1:udc@80402000{};....

No, we can allow up to 8 devices by adding the gadget structure,
such as gadget0:udc@80401000{}; gadget1:udc@80402000{};....gadget8:udc@80408000{};

> Which bit in which register? Your devices have separate address space, so why they cannot poke the same register, right? Then just always set it to 0...

In HPE GXP vEHCI controller, there are three register groups: standard USB EHCI registers, 
virtual device global registers, and virtual device registers.

Standard USB EHCI registers ---- We defined as "hpe,gxp-vudc" in the device tree (vuhc0) 
Virtual device global registers --- We defined as "hpe,gxp-udcg" 
Virtual device registers -- We defined as "hpe,gxp-udc"

Each virtual device will have its own separate address space. 
There is only single address space for the virtual device global registers. 

The virtual device global registers are including vDevice Global Interrupt Status register(EVGISTAT), 
vDevice Global Interrupt Enable register(EVGIEN), vEHCI FlexEndpoint Mapping register (EVFEMAP) ....
We need the vdevnum for the bit position in EVGISTAT and EVGIEN for each device.  
We write vdevnum into the EVFEMAP register to assign an EP to a specific device. 

> I might miss here something but so far it looks to me like some hacky description matching the driver, not hardware, not existing bindings.

We create "vdevnum" as device configuration parameter due to our hardware need.

>>>> +
>>>> +  fepnum:
>>>> +    description:
>>> >+      number of the flexible end-points this device is needed.
> >
>> >Similar question.
> >
> >In HPE GXP virtual EHCI Controller chipset, there is a flexible End-Point(EP) pool. 
>>Each flexible EP has its own mapping register. The mapping register 
>>bit 0 to 3 is for device number (vdevnum) and bit 4 to 7 is for EP number inside the device.
>>The device driver configures the mapping register to assign a flexible 
>>EP to a specific device.  Here, "fepnum" is the input letting the 
>>driver know how many EPs are needed for this device/gadget.

>Nope. So you create here some weird IDs to poke into syscon register.
>First, syscon has offset if you need. You could treat it maybe as bits?
>I don't know... but even then your design is poor - two devices 
>changing the same register. Even though it is sunchronized by regmap, it is conflicting, obfuscated access.

The "fepnum" is the input parameter to define how many end-points (EPs) is needed
for the device.

You are correct that all devices need to access the virtual 
device global registers during the runtime. 
Thus, we create " hpe,syscon-phandle = <&udc_system_controller>;'
for the driver getting the vDevice Global registers address.

In our current chip registers layout with the vDevice Global registers, I don’t see
a way to avoid "two devices changing the same register".

Thank you very much for your time.

Richard.

Re: [PATCH v1 2/7] dt-bindings: usb: hpe,gxp-udc: Add binding for gxp gadget

[Krzysztof Kozlowski]

On 09/11/2022 04:37, Yu, Richard wrote:
> Hi Mr. Kozlowski,
> 
> Thank you very much for inputs.
> 
>>>>> +
>>>>> +  vdevnum:
>>>>> +    description:
>>>>> +      virtual device number.
>>
>>>> That's unusual property... Why numbering devices is part of DT (hardware description)?
>>
>>>  In HPE GXP virtual EHCI controller chipset, it can support up to 8  
>>> virtual devices(gadgets). Each device/gadget will be represented  by 
>>> a bit in 8 bits register. For example, the interrupt register bit 0  
>>> indicates the interrupt from device 0, bit 1 for device 1 ... so on.
>>> When a user defines a device/gadget, he/she can define the device 
>>> number as between 0 and 7. Thus, the driver can look up to the bit 
>>> position. That is why we have numbering devices as part of DT.
> 
>> Wrap your lines properly, it's impossible to reply in-line to such messages.
> 
> Sorry for the improper wrapping. Hope the above fixed the problem.
> 
>> Then how do you specify two devices? You allow here only one, right?
> 
> In our current design, to specify two devices, we added the gadget 
> structure into the device tree, such as  gadget0:udc@80401000{}; gadget1:udc@80402000{};....
> 
> No, we can allow up to 8 devices by adding the gadget structure,
> such as gadget0:udc@80401000{}; gadget1:udc@80402000{};....gadget8:udc@80408000{};
> 
>> Which bit in which register? Your devices have separate address space, so why they cannot poke the same register, right? Then just always set it to 0...
> 
> In HPE GXP vEHCI controller, there are three register groups: standard USB EHCI registers, 
> virtual device global registers, and virtual device registers.
> 
> Standard USB EHCI registers ---- We defined as "hpe,gxp-vudc" in the device tree (vuhc0) 
> Virtual device global registers --- We defined as "hpe,gxp-udcg" 
> Virtual device registers -- We defined as "hpe,gxp-udc"
> 
> Each virtual device will have its own separate address space. 
> There is only single address space for the virtual device global registers. 
> 
> The virtual device global registers are including vDevice Global Interrupt Status register(EVGISTAT), 
> vDevice Global Interrupt Enable register(EVGIEN), vEHCI FlexEndpoint Mapping register (EVFEMAP) ....
> We need the vdevnum for the bit position in EVGISTAT and EVGIEN for each device.  
> We write vdevnum into the EVFEMAP register to assign an EP to a specific device. 
> 
>> I might miss here something but so far it looks to me like some hacky description matching the driver, not hardware, not existing bindings.
> 
> We create "vdevnum" as device configuration parameter due to our hardware need.

That's not an argument... everything can be a "hardware need".

> 
>>>>> +
>>>>> +  fepnum:
>>>>> +    description:
>>>>> +      number of the flexible end-points this device is needed.
>>>
>>>> Similar question.
>>>
>>> In HPE GXP virtual EHCI Controller chipset, there is a flexible End-Point(EP) pool. 
>>> Each flexible EP has its own mapping register. The mapping register 
>>> bit 0 to 3 is for device number (vdevnum) and bit 4 to 7 is for EP number inside the device.
>>> The device driver configures the mapping register to assign a flexible 
>>> EP to a specific device.  Here, "fepnum" is the input letting the 
>>> driver know how many EPs are needed for this device/gadget.
> 
>> Nope. So you create here some weird IDs to poke into syscon register.
>> First, syscon has offset if you need. You could treat it maybe as bits?
>> I don't know... but even then your design is poor - two devices 
>> changing the same register. Even though it is sunchronized by regmap, it is conflicting, obfuscated access.
> 
> The "fepnum" is the input parameter to define how many end-points (EPs) is needed
> for the device.
> 
> You are correct that all devices need to access the virtual 
> device global registers during the runtime. 
> Thus, we create " hpe,syscon-phandle = <&udc_system_controller>;'
> for the driver getting the vDevice Global registers address.

And how do you solve poking into the same register by two devices? Who
owns it? You don't...

> 
> In our current chip registers layout with the vDevice Global registers, I don’t see
> a way to avoid "two devices changing the same register".

I see at least an idea - create proper hierarchy, where parent device
instantiates its children (thus knows and increments the IDs) and is
responsible for proper handling of shared register (thus the parent owns
the register).

I understand why you created vdevnum/fepnum properties but the reason is
not matching DT bindings. These are not additional hardware properties
which deserve their own DT properties - they are already part of unit
address and/or just incremented ID based on device number managed by a
parent.

Best regards,
Krzysztof

[PATCH v1 3/7] dt-bindings: usb: hpe,gxp-udcg: Add binding for gxp gadget group

[richard.yu]

From: Richard Yu <richard.yu@hpe.com>

Create documentation for the hpe,gxp-udcg binding to support access to
the gxp USB gadget group.

Signed-off-by: Richard Yu <richard.yu@hpe.com>
---
 .../devicetree/bindings/usb/hpe,gxp-udcg.yaml | 34 +++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/hpe,gxp-udcg.yaml

diff --git a/Documentation/devicetree/bindings/usb/hpe,gxp-udcg.yaml b/Documentation/devicetree/bindings/usb/hpe,gxp-udcg.yaml
new file mode 100644
index 000000000000..f1dd681c8d7d
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/hpe,gxp-udcg.yaml
@@ -0,0 +1,34 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/hpe,gxp-udcg.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: HPE GXP Gadget Universal Device Controller Group (UDCG)
+
+maintainers:
+  - Richard Yu <richard.yu@hpe.com>
+  - Jean-Marie Verdun <verdun@hpe.com>
+  - Nick Hawkins <nick.hawkins@hpe.com>
+
+properties:
+  compatible:
+    items:
+      - const: hpe,gxp-udcg
+      - const: syscon
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    system-controller@80400800 {
+      compatible = "hpe,gxp-udcg", "syscon";
+      reg = <0x80400800 0x200>;
+    };
-- 
2.17.1

Re: [PATCH v1 3/7] dt-bindings: usb: hpe,gxp-udcg: Add binding for gxp gadget group

[Krzysztof Kozlowski]

On 03/11/2022 12:06, richard.yu@hpe.com wrote:
> From: Richard Yu <richard.yu@hpe.com>
> 
> Create documentation for the hpe,gxp-udcg binding to support access to
> the gxp USB gadget group.
> 
> Signed-off-by: Richard Yu <richard.yu@hpe.com>
> ---


Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof

[PATCH v1 4/7] dt-bindings: usb: hpe,gxp-vuhc: add binding for gxp vEHCI

[richard.yu]

From: Richard Yu <richard.yu@hpe.com>

Create documentation for the hpe,gxp-vuhc binding to support access to
the gxp virtual EHCI controller.

Signed-off-by: Richard Yu <richard.yu@hpe.com>
---
 .../devicetree/bindings/usb/hpe,gxp-vuhc.yaml | 34 +++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/usb/hpe,gxp-vuhc.yaml

diff --git a/Documentation/devicetree/bindings/usb/hpe,gxp-vuhc.yaml b/Documentation/devicetree/bindings/usb/hpe,gxp-vuhc.yaml
new file mode 100644
index 000000000000..1411a2550092
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/hpe,gxp-vuhc.yaml
@@ -0,0 +1,34 @@
+# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/usb/hpe,gxp-vuhc.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: HPE GXP Virtual Universal Host Controller (vUHC)
+
+maintainers:
+  - Richard Yu <richard.yu@hpe.com>
+  - Jean-Marie Verdun <verdun@hpe.com>
+  - Nick Hawkins <nick.hawkins@hpe.com>
+
+properties:
+  compatible:
+    items:
+      - const: hpe,gxp-vuhc
+      - const: syscon
+
+  reg:
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+    vuhc@80400000 {
+      compatible = "hpe,gxp-vuhc", "syscon";
+      reg = <0x80400000 0x80>;
+    };
-- 
2.17.1

Re: [PATCH v1 4/7] dt-bindings: usb: hpe,gxp-vuhc: add binding for gxp vEHCI

[Krzysztof Kozlowski]

On 03/11/2022 12:06, richard.yu@hpe.com wrote:
> From: Richard Yu <richard.yu@hpe.com>
> 
> Create documentation for the hpe,gxp-vuhc binding to support access to
> the gxp virtual EHCI controller.
> 

Previous comments apply.

> Signed-off-by: Richard Yu <richard.yu@hpe.com>
> ---
>  .../devicetree/bindings/usb/hpe,gxp-vuhc.yaml | 34 +++++++++++++++++++
>  1 file changed, 34 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/usb/hpe,gxp-vuhc.yaml
> 
> diff --git a/Documentation/devicetree/bindings/usb/hpe,gxp-vuhc.yaml b/Documentation/devicetree/bindings/usb/hpe,gxp-vuhc.yaml
> new file mode 100644
> index 000000000000..1411a2550092
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/usb/hpe,gxp-vuhc.yaml
> @@ -0,0 +1,34 @@
> +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/usb/hpe,gxp-vuhc.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: HPE GXP Virtual Universal Host Controller (vUHC)

This is getting confusing.

If it is EHCI, you miss usb-hcd.yaml reference. But in fact you describe
at syscon, maybe to avoid proper hardware description.

That does not look right.

> +
> +maintainers:
> +  - Richard Yu <richard.yu@hpe.com>
> +  - Jean-Marie Verdun <verdun@hpe.com>
> +  - Nick Hawkins <nick.hawkins@hpe.com>
> +
> +properties:
> +  compatible:
> +    items:
> +      - const: hpe,gxp-vuhc
> +      - const: syscon
> +
> +  reg:
> +    maxItems: 1
> +
> +required:
> +  - compatible
> +  - reg
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    vuhc@80400000 {

Node names should be generic.
https://devicetree-specification.readthedocs.io/en/latest/chapter2-devicetree-basics.html#generic-names-recommendation

> +      compatible = "hpe,gxp-vuhc", "syscon";
> +      reg = <0x80400000 0x80>;
> +    };

Best regards,
Krzysztof

[PATCH v1 5/7] ARM: dts: hpe: Add UDC nodes

[richard.yu]

From: Richard Yu <richard.yu@hpe.com>

Add support for the USB drivers on HPE GXP SoC.

Signed-off-by: Richard Yu <richard.yu@hpe.com>
---
 arch/arm/boot/dts/hpe-gxp.dtsi | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/arch/arm/boot/dts/hpe-gxp.dtsi b/arch/arm/boot/dts/hpe-gxp.dtsi
index cf735b3c4f35..60f2d3b15d90 100644
--- a/arch/arm/boot/dts/hpe-gxp.dtsi
+++ b/arch/arm/boot/dts/hpe-gxp.dtsi
@@ -59,6 +59,36 @@
 			ranges = <0x0 0xc0000000 0x30000000>;
 			dma-ranges;
 
+			vuhc0: vuhc@80400000 {
+				compatible = "hpe,gxp-vuhc", "syscon";
+				reg = <0x80400000 0x80>;
+			};
+
+			udc_system_controller: system-controller@80400800 {
+				compatible = "hpe,gxp-udcg", "syscon";
+				reg = <0x80400800 0x200>;
+			};
+
+			gadget0: udc@80401000 {
+				compatible = "hpe,gxp-udc";
+				reg = <0x80401000 0x1000>;
+				interrupts = <13>;
+				interrupt-parent = <&vic1>;
+				vdevnum = <0>;
+				fepnum = <7>;
+				hpe,syscon-phandle = <&udc_system_controller>;
+			};
+
+			gadget1: udc@80402000 {
+				compatible = "hpe,gxp-udc";
+				reg = <0x80402000 0x1000>;
+				interrupts = <13>;
+				interrupt-parent = <&vic1>;
+				vdevnum = <1>;
+				fepnum = <7>;
+				hpe,syscon-phandle = <&udc_system_controller>;
+			};
+
 			vic0: interrupt-controller@eff0000 {
 				compatible = "arm,pl192-vic";
 				reg = <0xeff0000 0x1000>;
-- 
2.17.1

Re: [PATCH v1 5/7] ARM: dts: hpe: Add UDC nodes

[Krzysztof Kozlowski]

On 03/11/2022 17:06, richard.yu@hpe.com wrote:
> From: Richard Yu <richard.yu@hpe.com>
> 
> Add support for the USB drivers on HPE GXP SoC.
> 
> Signed-off-by: Richard Yu <richard.yu@hpe.com>
> ---
>  arch/arm/boot/dts/hpe-gxp.dtsi | 30 ++++++++++++++++++++++++++++++
>  1 file changed, 30 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/hpe-gxp.dtsi b/arch/arm/boot/dts/hpe-gxp.dtsi
> index cf735b3c4f35..60f2d3b15d90 100644
> --- a/arch/arm/boot/dts/hpe-gxp.dtsi
> +++ b/arch/arm/boot/dts/hpe-gxp.dtsi
> @@ -59,6 +59,36 @@
>  			ranges = <0x0 0xc0000000 0x30000000>;
>  			dma-ranges;
>  
> +			vuhc0: vuhc@80400000 {
> +				compatible = "hpe,gxp-vuhc", "syscon";
> +				reg = <0x80400000 0x80>;
> +			};
> +
> +			udc_system_controller: system-controller@80400800 {
> +				compatible = "hpe,gxp-udcg", "syscon";
> +				reg = <0x80400800 0x200>;
> +			};
> +
> +			gadget0: udc@80401000 {
> +				compatible = "hpe,gxp-udc";
> +				reg = <0x80401000 0x1000>;
> +				interrupts = <13>;
> +				interrupt-parent = <&vic1>;
> +				vdevnum = <0>;
> +				fepnum = <7>;
> +				hpe,syscon-phandle = <&udc_system_controller>;
> +			};
> +
> +			gadget1: udc@80402000 {
> +				compatible = "hpe,gxp-udc";
> +				reg = <0x80402000 0x1000>;
> +				interrupts = <13>;
> +				interrupt-parent = <&vic1>;
> +				vdevnum = <1>;
> +				fepnum = <7>;
> +				hpe,syscon-phandle = <&udc_system_controller>;

Based on your bindings explanation, UDC should be rather the device
with multiple children representing actual devices.

Best regards,
Krzysztof

[PATCH v1 6/7] ARM: configs: multi_v7_defconfig: Enable HPE GXP USB Driver

[richard.yu]

From: Richard Yu <richard.yu@hpe.com>

Enable the USB driver on the HPE GXP BMC.

Signed-off-by: Richard Yu <richard.yu@hpe.com>
---
 arch/arm/configs/multi_v7_defconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
index 12b35008571f..940632995b9b 100644
--- a/arch/arm/configs/multi_v7_defconfig
+++ b/arch/arm/configs/multi_v7_defconfig
@@ -836,6 +836,7 @@ CONFIG_USB_XHCI_HCD=y
 CONFIG_USB_XHCI_MVEBU=y
 CONFIG_USB_XHCI_TEGRA=m
 CONFIG_USB_BRCMSTB=m
+CONFIG_USB_GXP_UDC=y
 CONFIG_USB_EHCI_HCD=y
 CONFIG_USB_EHCI_HCD_STI=y
 CONFIG_USB_EHCI_EXYNOS=m
-- 
2.17.1

Re: [PATCH v1 6/7] ARM: configs: multi_v7_defconfig: Enable HPE GXP USB Driver

[Krzysztof Kozlowski]

On 03/11/2022 12:06, richard.yu@hpe.com wrote:
> From: Richard Yu <richard.yu@hpe.com>
> 
> Enable the USB driver on the HPE GXP BMC.
> 
> Signed-off-by: Richard Yu <richard.yu@hpe.com>
> ---
>  arch/arm/configs/multi_v7_defconfig | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
> index 12b35008571f..940632995b9b 100644
> --- a/arch/arm/configs/multi_v7_defconfig
> +++ b/arch/arm/configs/multi_v7_defconfig
> @@ -836,6 +836,7 @@ CONFIG_USB_XHCI_HCD=y
>  CONFIG_USB_XHCI_MVEBU=y
>  CONFIG_USB_XHCI_TEGRA=m
>  CONFIG_USB_BRCMSTB=m
> +CONFIG_USB_GXP_UDC=y

Module

Best regards,
Krzysztof

[PATCH v1 7/7] MAINTAINERS: add USB support to GXP

[richard.yu]

From: Richard Yu <richard.yu@hpe.com>

Add the usb driver and dt-binding documents

Signed-off-by: Richard Yu <richard.yu@hpe.com>
---
 MAINTAINERS | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 56ff555ed5a4..b7280eb2dacd 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2176,15 +2176,20 @@ F:	arch/arm/mach-sa1100/jornada720.c
 ARM/HPE GXP ARCHITECTURE
 M:	Jean-Marie Verdun <verdun@hpe.com>
 M:	Nick Hawkins <nick.hawkins@hpe.com>
+M:	Richard Yu <richard.yu@hpe.com>
 S:	Maintained
 F:	Documentation/devicetree/bindings/arm/hpe,gxp.yaml
 F:	Documentation/devicetree/bindings/spi/hpe,gxp-spifi.yaml
 F:	Documentation/devicetree/bindings/timer/hpe,gxp-timer.yaml
+F:	Documentation/devicetree/bindings/usb/hpe,gxp-udc.yaml
+F:	Documentation/devicetree/bindings/usb/hpe,gxp-udcg.yaml
+F:	Documentation/devicetree/bindings/usb/hpe,gxp-uvhc.yaml
 F:	arch/arm/boot/dts/hpe-bmc*
 F:	arch/arm/boot/dts/hpe-gxp*
 F:	arch/arm/mach-hpe/
 F:	drivers/clocksource/timer-gxp.c
 F:	drivers/spi/spi-gxp.c
+F:	drivers/usb/gadget/udc/gxp_udc.c
 F:	drivers/watchdog/gxp-wdt.c
 
 ARM/IGEP MACHINE SUPPORT
-- 
2.17.1

Re: [PATCH v1 7/7] MAINTAINERS: add USB support to GXP

[Krzysztof Kozlowski]

On 03/11/2022 12:06, richard.yu@hpe.com wrote:
> From: Richard Yu <richard.yu@hpe.com>
> 
> Add the usb driver and dt-binding documents
> 
> Signed-off-by: Richard Yu <richard.yu@hpe.com>
> ---
>  MAINTAINERS | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 56ff555ed5a4..b7280eb2dacd 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -2176,15 +2176,20 @@ F:	arch/arm/mach-sa1100/jornada720.c
>  ARM/HPE GXP ARCHITECTURE
>  M:	Jean-Marie Verdun <verdun@hpe.com>
>  M:	Nick Hawkins <nick.hawkins@hpe.com>
> +M:	Richard Yu <richard.yu@hpe.com>
>  S:	Maintained
>  F:	Documentation/devicetree/bindings/arm/hpe,gxp.yaml
>  F:	Documentation/devicetree/bindings/spi/hpe,gxp-spifi.yaml
>  F:	Documentation/devicetree/bindings/timer/hpe,gxp-timer.yaml
> +F:	Documentation/devicetree/bindings/usb/hpe,gxp-udc.yaml

Just:

Documentation/devicetree/bindings/usb/hpe,gxp*

Best regards,
Krzysztof

Re: [PATCH v1 7/7] MAINTAINERS: add USB support to GXP

[kernel test robot]

[-- Attachment #1: Type: text/plain, Size: 1579 bytes --]

Hi,

I love your patch! Perhaps something to improve:

[auto build test WARNING on usb/usb-testing]
[also build test WARNING on robh/for-next linus/master v6.1-rc3 next-20221104]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/richard-yu-hpe-com/Add-USB-Driver-for-HPE-GXP-Architecture/20221104-001217
base:   https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb.git usb-testing
patch link:    https://lore.kernel.org/r/20221103160625.15574-8-richard.yu%40hpe.com
patch subject: [PATCH v1 7/7] MAINTAINERS: add USB support to GXP
reproduce:
        # https://github.com/intel-lab-lkp/linux/commit/2643f23ddaa915d1faa805bb9e975ec811701fc4
        git remote add linux-review https://github.com/intel-lab-lkp/linux
        git fetch --no-tags linux-review richard-yu-hpe-com/Add-USB-Driver-for-HPE-GXP-Architecture/20221104-001217
        git checkout 2643f23ddaa915d1faa805bb9e975ec811701fc4
        make menuconfig
        # enable CONFIG_COMPILE_TEST, CONFIG_WARN_MISSING_DOCUMENTS, CONFIG_WARN_ABI_ERRORS
        make htmldocs

If you fix the issue, kindly add following tag where applicable
| Reported-by: kernel test robot <lkp@intel.com>

All warnings (new ones prefixed by >>):

>> Warning: MAINTAINERS references a file that doesn't exist: Documentation/devicetree/bindings/usb/hpe,gxp-uvhc.yaml

-- 
0-DAY CI Kernel Test Service
https://01.org/lkp

[-- Attachment #2: config --]
[-- Type: text/plain, Size: 38869 bytes --]

#
# Automatically generated file; DO NOT EDIT.
# Linux/x86_64 6.1.0-rc3 Kernel Configuration
#
CONFIG_CC_VERSION_TEXT="gcc-11 (Debian 11.3.0-8) 11.3.0"
CONFIG_CC_IS_GCC=y
CONFIG_GCC_VERSION=110300
CONFIG_CLANG_VERSION=0
CONFIG_AS_IS_GNU=y
CONFIG_AS_VERSION=23900
CONFIG_LD_IS_BFD=y
CONFIG_LD_VERSION=23900
CONFIG_LLD_VERSION=0
CONFIG_CC_CAN_LINK=y
CONFIG_CC_CAN_LINK_STATIC=y
CONFIG_CC_HAS_ASM_GOTO_OUTPUT=y
CONFIG_CC_HAS_ASM_INLINE=y
CONFIG_CC_HAS_NO_PROFILE_FN_ATTR=y
CONFIG_PAHOLE_VERSION=123
CONFIG_IRQ_WORK=y
CONFIG_BUILDTIME_TABLE_SORT=y
CONFIG_THREAD_INFO_IN_TASK=y

#
# General setup
#
CONFIG_BROKEN_ON_SMP=y
CONFIG_INIT_ENV_ARG_LIMIT=32
CONFIG_COMPILE_TEST=y
# CONFIG_WERROR is not set
CONFIG_LOCALVERSION=""
CONFIG_BUILD_SALT=""
CONFIG_HAVE_KERNEL_GZIP=y
CONFIG_HAVE_KERNEL_BZIP2=y
CONFIG_HAVE_KERNEL_LZMA=y
CONFIG_HAVE_KERNEL_XZ=y
CONFIG_HAVE_KERNEL_LZO=y
CONFIG_HAVE_KERNEL_LZ4=y
CONFIG_HAVE_KERNEL_ZSTD=y
CONFIG_KERNEL_GZIP=y
# CONFIG_KERNEL_BZIP2 is not set
# CONFIG_KERNEL_LZMA is not set
# CONFIG_KERNEL_XZ is not set
# CONFIG_KERNEL_LZO is not set
# CONFIG_KERNEL_LZ4 is not set
# CONFIG_KERNEL_ZSTD is not set
CONFIG_DEFAULT_INIT=""
CONFIG_DEFAULT_HOSTNAME="(none)"
# CONFIG_SYSVIPC is not set
# CONFIG_WATCH_QUEUE is not set
# CONFIG_CROSS_MEMORY_ATTACH is not set
# CONFIG_USELIB is not set
CONFIG_HAVE_ARCH_AUDITSYSCALL=y

#
# IRQ subsystem
#
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_IRQ_SHOW=y
CONFIG_HARDIRQS_SW_RESEND=y
CONFIG_IRQ_DOMAIN=y
CONFIG_IRQ_DOMAIN_HIERARCHY=y
CONFIG_GENERIC_IRQ_MATRIX_ALLOCATOR=y
CONFIG_GENERIC_IRQ_RESERVATION_MODE=y
CONFIG_IRQ_FORCED_THREADING=y
CONFIG_SPARSE_IRQ=y
# end of IRQ subsystem

CONFIG_CLOCKSOURCE_WATCHDOG=y
CONFIG_ARCH_CLOCKSOURCE_INIT=y
CONFIG_CLOCKSOURCE_VALIDATE_LAST_CYCLE=y
CONFIG_GENERIC_TIME_VSYSCALL=y
CONFIG_GENERIC_CLOCKEVENTS=y
CONFIG_GENERIC_CLOCKEVENTS_BROADCAST=y
CONFIG_GENERIC_CLOCKEVENTS_MIN_ADJUST=y
CONFIG_GENERIC_CMOS_UPDATE=y
CONFIG_HAVE_POSIX_CPU_TIMERS_TASK_WORK=y
CONFIG_POSIX_CPU_TIMERS_TASK_WORK=y

#
# Timers subsystem
#
CONFIG_HZ_PERIODIC=y
# CONFIG_NO_HZ_IDLE is not set
# CONFIG_NO_HZ is not set
# CONFIG_HIGH_RES_TIMERS is not set
CONFIG_CLOCKSOURCE_WATCHDOG_MAX_SKEW_US=100
# end of Timers subsystem

CONFIG_HAVE_EBPF_JIT=y
CONFIG_ARCH_WANT_DEFAULT_BPF_JIT=y

#
# BPF subsystem
#
# CONFIG_BPF_SYSCALL is not set
# end of BPF subsystem

CONFIG_PREEMPT_NONE_BUILD=y
CONFIG_PREEMPT_NONE=y
# CONFIG_PREEMPT_VOLUNTARY is not set
# CONFIG_PREEMPT is not set
# CONFIG_PREEMPT_DYNAMIC is not set

#
# CPU/Task time and stats accounting
#
CONFIG_TICK_CPU_ACCOUNTING=y
# CONFIG_VIRT_CPU_ACCOUNTING_GEN is not set
# CONFIG_IRQ_TIME_ACCOUNTING is not set
# CONFIG_BSD_PROCESS_ACCT is not set
# CONFIG_PSI is not set
# end of CPU/Task time and stats accounting

CONFIG_CPU_ISOLATION=y

#
# RCU Subsystem
#
CONFIG_TINY_RCU=y
# CONFIG_RCU_EXPERT is not set
CONFIG_SRCU=y
CONFIG_TINY_SRCU=y
# end of RCU Subsystem

# CONFIG_IKCONFIG is not set
# CONFIG_IKHEADERS is not set
CONFIG_LOG_BUF_SHIFT=17
CONFIG_PRINTK_SAFE_LOG_BUF_SHIFT=13
CONFIG_HAVE_UNSTABLE_SCHED_CLOCK=y

#
# Scheduler features
#
# end of Scheduler features

CONFIG_ARCH_SUPPORTS_NUMA_BALANCING=y
CONFIG_ARCH_WANT_BATCHED_UNMAP_TLB_FLUSH=y
CONFIG_CC_HAS_INT128=y
CONFIG_CC_IMPLICIT_FALLTHROUGH="-Wimplicit-fallthrough=5"
CONFIG_GCC12_NO_ARRAY_BOUNDS=y
CONFIG_ARCH_SUPPORTS_INT128=y
# CONFIG_CGROUPS is not set
CONFIG_NAMESPACES=y
# CONFIG_UTS_NS is not set
# CONFIG_TIME_NS is not set
# CONFIG_USER_NS is not set
# CONFIG_PID_NS is not set
# CONFIG_CHECKPOINT_RESTORE is not set
# CONFIG_SCHED_AUTOGROUP is not set
# CONFIG_SYSFS_DEPRECATED is not set
# CONFIG_RELAY is not set
# CONFIG_BLK_DEV_INITRD is not set
# CONFIG_BOOT_CONFIG is not set
# CONFIG_INITRAMFS_PRESERVE_MTIME is not set
CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE=y
# CONFIG_CC_OPTIMIZE_FOR_SIZE is not set
CONFIG_LD_ORPHAN_WARN=y
CONFIG_SYSCTL=y
CONFIG_SYSCTL_EXCEPTION_TRACE=y
CONFIG_HAVE_PCSPKR_PLATFORM=y
# CONFIG_EXPERT is not set
CONFIG_MULTIUSER=y
CONFIG_SGETMASK_SYSCALL=y
CONFIG_SYSFS_SYSCALL=y
CONFIG_FHANDLE=y
CONFIG_POSIX_TIMERS=y
CONFIG_PRINTK=y
CONFIG_BUG=y
CONFIG_ELF_CORE=y
CONFIG_PCSPKR_PLATFORM=y
CONFIG_BASE_FULL=y
CONFIG_FUTEX=y
CONFIG_FUTEX_PI=y
CONFIG_EPOLL=y
CONFIG_SIGNALFD=y
CONFIG_TIMERFD=y
CONFIG_EVENTFD=y
CONFIG_SHMEM=y
CONFIG_AIO=y
CONFIG_IO_URING=y
CONFIG_ADVISE_SYSCALLS=y
CONFIG_MEMBARRIER=y
CONFIG_KALLSYMS=y
CONFIG_KALLSYMS_BASE_RELATIVE=y
CONFIG_ARCH_HAS_MEMBARRIER_SYNC_CORE=y
CONFIG_RSEQ=y
# CONFIG_EMBEDDED is not set
CONFIG_HAVE_PERF_EVENTS=y

#
# Kernel Performance Events And Counters
#
CONFIG_PERF_EVENTS=y
# end of Kernel Performance Events And Counters

# CONFIG_PROFILING is not set
# end of General setup

CONFIG_64BIT=y
CONFIG_X86_64=y
CONFIG_X86=y
CONFIG_INSTRUCTION_DECODER=y
CONFIG_OUTPUT_FORMAT="elf64-x86-64"
CONFIG_LOCKDEP_SUPPORT=y
CONFIG_STACKTRACE_SUPPORT=y
CONFIG_MMU=y
CONFIG_ARCH_MMAP_RND_BITS_MIN=28
CONFIG_ARCH_MMAP_RND_BITS_MAX=32
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MIN=8
CONFIG_ARCH_MMAP_RND_COMPAT_BITS_MAX=16
CONFIG_GENERIC_ISA_DMA=y
CONFIG_GENERIC_BUG=y
CONFIG_GENERIC_BUG_RELATIVE_POINTERS=y
CONFIG_ARCH_MAY_HAVE_PC_FDC=y
CONFIG_GENERIC_CALIBRATE_DELAY=y
CONFIG_ARCH_HAS_CPU_RELAX=y
CONFIG_ARCH_HIBERNATION_POSSIBLE=y
CONFIG_ARCH_NR_GPIO=1024
CONFIG_ARCH_SUSPEND_POSSIBLE=y
CONFIG_AUDIT_ARCH=y
CONFIG_ARCH_SUPPORTS_UPROBES=y
CONFIG_FIX_EARLYCON_MEM=y
CONFIG_PGTABLE_LEVELS=4
CONFIG_CC_HAS_SANE_STACKPROTECTOR=y

#
# Processor type and features
#
# CONFIG_SMP is not set
CONFIG_X86_FEATURE_NAMES=y
CONFIG_X86_MPPARSE=y
# CONFIG_GOLDFISH is not set
# CONFIG_X86_CPU_RESCTRL is not set
# CONFIG_X86_EXTENDED_PLATFORM is not set
# CONFIG_SCHED_OMIT_FRAME_POINTER is not set
# CONFIG_HYPERVISOR_GUEST is not set
# CONFIG_MK8 is not set
# CONFIG_MPSC is not set
# CONFIG_MCORE2 is not set
# CONFIG_MATOM is not set
CONFIG_GENERIC_CPU=y
CONFIG_X86_INTERNODE_CACHE_SHIFT=6
CONFIG_X86_L1_CACHE_SHIFT=6
CONFIG_X86_TSC=y
CONFIG_X86_CMPXCHG64=y
CONFIG_X86_CMOV=y
CONFIG_X86_MINIMUM_CPU_FAMILY=64
CONFIG_X86_DEBUGCTLMSR=y
CONFIG_IA32_FEAT_CTL=y
CONFIG_X86_VMX_FEATURE_NAMES=y
CONFIG_CPU_SUP_INTEL=y
CONFIG_CPU_SUP_AMD=y
CONFIG_CPU_SUP_HYGON=y
CONFIG_CPU_SUP_CENTAUR=y
CONFIG_CPU_SUP_ZHAOXIN=y
CONFIG_HPET_TIMER=y
CONFIG_DMI=y
CONFIG_NR_CPUS_RANGE_BEGIN=1
CONFIG_NR_CPUS_RANGE_END=1
CONFIG_NR_CPUS_DEFAULT=1
CONFIG_NR_CPUS=1
CONFIG_UP_LATE_INIT=y
CONFIG_X86_LOCAL_APIC=y
CONFIG_X86_IO_APIC=y
# CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS is not set
# CONFIG_X86_MCE is not set

#
# Performance monitoring
#
# CONFIG_PERF_EVENTS_AMD_POWER is not set
# CONFIG_PERF_EVENTS_AMD_UNCORE is not set
# CONFIG_PERF_EVENTS_AMD_BRS is not set
# end of Performance monitoring

CONFIG_X86_16BIT=y
CONFIG_X86_ESPFIX64=y
CONFIG_X86_VSYSCALL_EMULATION=y
# CONFIG_X86_IOPL_IOPERM is not set
# CONFIG_MICROCODE is not set
# CONFIG_X86_MSR is not set
# CONFIG_X86_CPUID is not set
# CONFIG_X86_5LEVEL is not set
CONFIG_X86_DIRECT_GBPAGES=y
# CONFIG_AMD_MEM_ENCRYPT is not set
CONFIG_ARCH_SPARSEMEM_ENABLE=y
CONFIG_ARCH_SPARSEMEM_DEFAULT=y
CONFIG_ILLEGAL_POINTER_VALUE=0xdead000000000000
# CONFIG_X86_CHECK_BIOS_CORRUPTION is not set
CONFIG_MTRR=y
# CONFIG_MTRR_SANITIZER is not set
CONFIG_X86_PAT=y
CONFIG_ARCH_USES_PG_UNCACHED=y
CONFIG_X86_UMIP=y
CONFIG_CC_HAS_IBT=y
# CONFIG_X86_KERNEL_IBT is not set
# CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS is not set
CONFIG_X86_INTEL_TSX_MODE_OFF=y
# CONFIG_X86_INTEL_TSX_MODE_ON is not set
# CONFIG_X86_INTEL_TSX_MODE_AUTO is not set
# CONFIG_HZ_100 is not set
CONFIG_HZ_250=y
# CONFIG_HZ_300 is not set
# CONFIG_HZ_1000 is not set
CONFIG_HZ=250
# CONFIG_KEXEC is not set
# CONFIG_CRASH_DUMP is not set
CONFIG_PHYSICAL_START=0x1000000
# CONFIG_RELOCATABLE is not set
CONFIG_PHYSICAL_ALIGN=0x200000
CONFIG_LEGACY_VSYSCALL_XONLY=y
# CONFIG_LEGACY_VSYSCALL_NONE is not set
# CONFIG_CMDLINE_BOOL is not set
CONFIG_MODIFY_LDT_SYSCALL=y
# CONFIG_STRICT_SIGALTSTACK_SIZE is not set
CONFIG_HAVE_LIVEPATCH=y
# end of Processor type and features

CONFIG_CC_HAS_SLS=y
CONFIG_CC_HAS_RETURN_THUNK=y
# CONFIG_SPECULATION_MITIGATIONS is not set
CONFIG_ARCH_HAS_ADD_PAGES=y
CONFIG_ARCH_MHP_MEMMAP_ON_MEMORY_ENABLE=y

#
# Power management and ACPI options
#
# CONFIG_SUSPEND is not set
# CONFIG_PM is not set
CONFIG_ARCH_SUPPORTS_ACPI=y
# CONFIG_ACPI is not set

#
# CPU Frequency scaling
#
# CONFIG_CPU_FREQ is not set
# end of CPU Frequency scaling

#
# CPU Idle
#
# CONFIG_CPU_IDLE is not set
# end of CPU Idle
# end of Power management and ACPI options

#
# Bus options (PCI etc.)
#
CONFIG_ISA_DMA_API=y
# end of Bus options (PCI etc.)

#
# Binary Emulations
#
# CONFIG_IA32_EMULATION is not set
# CONFIG_X86_X32_ABI is not set
# end of Binary Emulations

CONFIG_HAVE_KVM=y
# CONFIG_VIRTUALIZATION is not set
CONFIG_AS_AVX512=y
CONFIG_AS_SHA1_NI=y
CONFIG_AS_SHA256_NI=y
CONFIG_AS_TPAUSE=y

#
# General architecture-dependent options
#
CONFIG_GENERIC_ENTRY=y
# CONFIG_JUMP_LABEL is not set
# CONFIG_STATIC_CALL_SELFTEST is not set
CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS=y
CONFIG_ARCH_USE_BUILTIN_BSWAP=y
CONFIG_HAVE_IOREMAP_PROT=y
CONFIG_HAVE_KPROBES=y
CONFIG_HAVE_KRETPROBES=y
CONFIG_HAVE_OPTPROBES=y
CONFIG_HAVE_KPROBES_ON_FTRACE=y
CONFIG_ARCH_CORRECT_STACKTRACE_ON_KRETPROBE=y
CONFIG_HAVE_FUNCTION_ERROR_INJECTION=y
CONFIG_HAVE_NMI=y
CONFIG_TRACE_IRQFLAGS_SUPPORT=y
CONFIG_TRACE_IRQFLAGS_NMI_SUPPORT=y
CONFIG_HAVE_ARCH_TRACEHOOK=y
CONFIG_HAVE_DMA_CONTIGUOUS=y
CONFIG_GENERIC_SMP_IDLE_THREAD=y
CONFIG_ARCH_HAS_FORTIFY_SOURCE=y
CONFIG_ARCH_HAS_SET_MEMORY=y
CONFIG_ARCH_HAS_SET_DIRECT_MAP=y
CONFIG_HAVE_ARCH_THREAD_STRUCT_WHITELIST=y
CONFIG_ARCH_WANTS_DYNAMIC_TASK_STRUCT=y
CONFIG_ARCH_WANTS_NO_INSTR=y
CONFIG_HAVE_ASM_MODVERSIONS=y
CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
CONFIG_HAVE_RSEQ=y
CONFIG_HAVE_RUST=y
CONFIG_HAVE_FUNCTION_ARG_ACCESS_API=y
CONFIG_HAVE_HW_BREAKPOINT=y
CONFIG_HAVE_MIXED_BREAKPOINTS_REGS=y
CONFIG_HAVE_USER_RETURN_NOTIFIER=y
CONFIG_HAVE_PERF_EVENTS_NMI=y
CONFIG_HAVE_HARDLOCKUP_DETECTOR_PERF=y
CONFIG_HAVE_PERF_REGS=y
CONFIG_HAVE_PERF_USER_STACK_DUMP=y
CONFIG_HAVE_ARCH_JUMP_LABEL=y
CONFIG_HAVE_ARCH_JUMP_LABEL_RELATIVE=y
CONFIG_MMU_GATHER_MERGE_VMAS=y
CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG=y
CONFIG_HAVE_ALIGNED_STRUCT_PAGE=y
CONFIG_HAVE_CMPXCHG_LOCAL=y
CONFIG_HAVE_CMPXCHG_DOUBLE=y
CONFIG_HAVE_ARCH_SECCOMP=y
CONFIG_HAVE_ARCH_SECCOMP_FILTER=y
# CONFIG_SECCOMP is not set
CONFIG_HAVE_ARCH_STACKLEAK=y
CONFIG_HAVE_STACKPROTECTOR=y
# CONFIG_STACKPROTECTOR is not set
CONFIG_ARCH_SUPPORTS_LTO_CLANG=y
CONFIG_ARCH_SUPPORTS_LTO_CLANG_THIN=y
CONFIG_LTO_NONE=y
CONFIG_ARCH_SUPPORTS_CFI_CLANG=y
CONFIG_HAVE_ARCH_WITHIN_STACK_FRAMES=y
CONFIG_HAVE_CONTEXT_TRACKING_USER=y
CONFIG_HAVE_CONTEXT_TRACKING_USER_OFFSTACK=y
CONFIG_HAVE_VIRT_CPU_ACCOUNTING_GEN=y
CONFIG_HAVE_IRQ_TIME_ACCOUNTING=y
CONFIG_HAVE_MOVE_PUD=y
CONFIG_HAVE_MOVE_PMD=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE=y
CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD=y
CONFIG_HAVE_ARCH_HUGE_VMAP=y
CONFIG_HAVE_ARCH_HUGE_VMALLOC=y
CONFIG_ARCH_WANT_HUGE_PMD_SHARE=y
CONFIG_HAVE_ARCH_SOFT_DIRTY=y
CONFIG_HAVE_MOD_ARCH_SPECIFIC=y
CONFIG_MODULES_USE_ELF_RELA=y
CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK=y
CONFIG_HAVE_SOFTIRQ_ON_OWN_STACK=y
CONFIG_SOFTIRQ_ON_OWN_STACK=y
CONFIG_ARCH_HAS_ELF_RANDOMIZE=y
CONFIG_HAVE_ARCH_MMAP_RND_BITS=y
CONFIG_HAVE_EXIT_THREAD=y
CONFIG_ARCH_MMAP_RND_BITS=28
CONFIG_PAGE_SIZE_LESS_THAN_64KB=y
CONFIG_PAGE_SIZE_LESS_THAN_256KB=y
CONFIG_HAVE_OBJTOOL=y
CONFIG_HAVE_JUMP_LABEL_HACK=y
CONFIG_HAVE_NOINSTR_HACK=y
CONFIG_HAVE_NOINSTR_VALIDATION=y
CONFIG_HAVE_UACCESS_VALIDATION=y
CONFIG_HAVE_STACK_VALIDATION=y
CONFIG_HAVE_RELIABLE_STACKTRACE=y
# CONFIG_COMPAT_32BIT_TIME is not set
CONFIG_HAVE_ARCH_VMAP_STACK=y
# CONFIG_VMAP_STACK is not set
CONFIG_HAVE_ARCH_RANDOMIZE_KSTACK_OFFSET=y
CONFIG_RANDOMIZE_KSTACK_OFFSET=y
# CONFIG_RANDOMIZE_KSTACK_OFFSET_DEFAULT is not set
CONFIG_ARCH_HAS_STRICT_KERNEL_RWX=y
CONFIG_STRICT_KERNEL_RWX=y
CONFIG_ARCH_HAS_STRICT_MODULE_RWX=y
CONFIG_HAVE_ARCH_PREL32_RELOCATIONS=y
CONFIG_ARCH_HAS_MEM_ENCRYPT=y
CONFIG_HAVE_STATIC_CALL=y
CONFIG_HAVE_STATIC_CALL_INLINE=y
CONFIG_HAVE_PREEMPT_DYNAMIC=y
CONFIG_HAVE_PREEMPT_DYNAMIC_CALL=y
CONFIG_ARCH_WANT_LD_ORPHAN_WARN=y
CONFIG_ARCH_SUPPORTS_DEBUG_PAGEALLOC=y
CONFIG_ARCH_SUPPORTS_PAGE_TABLE_CHECK=y
CONFIG_ARCH_HAS_ELFCORE_COMPAT=y
CONFIG_ARCH_HAS_PARANOID_L1D_FLUSH=y
CONFIG_DYNAMIC_SIGFRAME=y
CONFIG_ARCH_HAS_NONLEAF_PMD_YOUNG=y

#
# GCOV-based kernel profiling
#
CONFIG_ARCH_HAS_GCOV_PROFILE_ALL=y
# end of GCOV-based kernel profiling

CONFIG_HAVE_GCC_PLUGINS=y
# CONFIG_GCC_PLUGINS is not set
# end of General architecture-dependent options

CONFIG_RT_MUTEXES=y
CONFIG_BASE_SMALL=0
# CONFIG_MODULES is not set
CONFIG_BLOCK=y
# CONFIG_BLOCK_LEGACY_AUTOLOAD is not set
# CONFIG_BLK_DEV_BSGLIB is not set
# CONFIG_BLK_DEV_INTEGRITY is not set
# CONFIG_BLK_DEV_ZONED is not set
# CONFIG_BLK_WBT is not set
# CONFIG_BLK_SED_OPAL is not set
# CONFIG_BLK_INLINE_ENCRYPTION is not set

#
# Partition Types
#
# CONFIG_PARTITION_ADVANCED is not set
CONFIG_MSDOS_PARTITION=y
CONFIG_EFI_PARTITION=y
# end of Partition Types

#
# IO Schedulers
#
# CONFIG_MQ_IOSCHED_DEADLINE is not set
# CONFIG_MQ_IOSCHED_KYBER is not set
# CONFIG_IOSCHED_BFQ is not set
# end of IO Schedulers

CONFIG_INLINE_SPIN_UNLOCK_IRQ=y
CONFIG_INLINE_READ_UNLOCK=y
CONFIG_INLINE_READ_UNLOCK_IRQ=y
CONFIG_INLINE_WRITE_UNLOCK=y
CONFIG_INLINE_WRITE_UNLOCK_IRQ=y
CONFIG_ARCH_SUPPORTS_ATOMIC_RMW=y
CONFIG_ARCH_USE_QUEUED_SPINLOCKS=y
CONFIG_ARCH_USE_QUEUED_RWLOCKS=y
CONFIG_ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE=y
CONFIG_ARCH_HAS_SYNC_CORE_BEFORE_USERMODE=y
CONFIG_ARCH_HAS_SYSCALL_WRAPPER=y

#
# Executable file formats
#
# CONFIG_BINFMT_ELF is not set
# CONFIG_BINFMT_SCRIPT is not set
# CONFIG_BINFMT_MISC is not set
CONFIG_COREDUMP=y
# end of Executable file formats

#
# Memory Management options
#
# CONFIG_SWAP is not set

#
# SLAB allocator options
#
# CONFIG_SLAB is not set
CONFIG_SLUB=y
# CONFIG_SLAB_MERGE_DEFAULT is not set
# CONFIG_SLAB_FREELIST_RANDOM is not set
# CONFIG_SLAB_FREELIST_HARDENED is not set
# CONFIG_SLUB_STATS is not set
# end of SLAB allocator options

# CONFIG_SHUFFLE_PAGE_ALLOCATOR is not set
# CONFIG_COMPAT_BRK is not set
CONFIG_SPARSEMEM=y
CONFIG_SPARSEMEM_EXTREME=y
CONFIG_SPARSEMEM_VMEMMAP_ENABLE=y
# CONFIG_SPARSEMEM_VMEMMAP is not set
CONFIG_HAVE_FAST_GUP=y
CONFIG_EXCLUSIVE_SYSTEM_RAM=y
CONFIG_ARCH_ENABLE_MEMORY_HOTPLUG=y
# CONFIG_MEMORY_HOTPLUG is not set
CONFIG_SPLIT_PTLOCK_CPUS=4
CONFIG_ARCH_ENABLE_SPLIT_PMD_PTLOCK=y
# CONFIG_COMPACTION is not set
# CONFIG_PAGE_REPORTING is not set
CONFIG_PHYS_ADDR_T_64BIT=y
# CONFIG_KSM is not set
CONFIG_DEFAULT_MMAP_MIN_ADDR=4096
CONFIG_ARCH_WANT_GENERAL_HUGETLB=y
CONFIG_ARCH_WANTS_THP_SWAP=y
# CONFIG_TRANSPARENT_HUGEPAGE is not set
CONFIG_NEED_PER_CPU_KM=y
CONFIG_NEED_PER_CPU_EMBED_FIRST_CHUNK=y
CONFIG_NEED_PER_CPU_PAGE_FIRST_CHUNK=y
CONFIG_HAVE_SETUP_PER_CPU_AREA=y
# CONFIG_CMA is not set
CONFIG_GENERIC_EARLY_IOREMAP=y
# CONFIG_IDLE_PAGE_TRACKING is not set
CONFIG_ARCH_HAS_CACHE_LINE_SIZE=y
CONFIG_ARCH_HAS_CURRENT_STACK_POINTER=y
CONFIG_ARCH_HAS_PTE_DEVMAP=y
CONFIG_ZONE_DMA=y
CONFIG_ZONE_DMA32=y
CONFIG_VM_EVENT_COUNTERS=y
# CONFIG_PERCPU_STATS is not set

#
# GUP_TEST needs to have DEBUG_FS enabled
#
CONFIG_ARCH_HAS_PTE_SPECIAL=y
CONFIG_SECRETMEM=y
# CONFIG_ANON_VMA_NAME is not set
# CONFIG_USERFAULTFD is not set
# CONFIG_LRU_GEN is not set

#
# Data Access Monitoring
#
# CONFIG_DAMON is not set
# end of Data Access Monitoring
# end of Memory Management options

# CONFIG_NET is not set

#
# Device Drivers
#
CONFIG_HAVE_EISA=y
# CONFIG_EISA is not set
CONFIG_HAVE_PCI=y
# CONFIG_PCI is not set
# CONFIG_PCCARD is not set

#
# Generic Driver Options
#
# CONFIG_UEVENT_HELPER is not set
# CONFIG_DEVTMPFS is not set
# CONFIG_STANDALONE is not set
# CONFIG_PREVENT_FIRMWARE_BUILD is not set

#
# Firmware loader
#
CONFIG_FW_LOADER=y
CONFIG_EXTRA_FIRMWARE=""
# CONFIG_FW_LOADER_USER_HELPER is not set
# CONFIG_FW_LOADER_COMPRESS is not set
# CONFIG_FW_UPLOAD is not set
# end of Firmware loader

CONFIG_ALLOW_DEV_COREDUMP=y
CONFIG_GENERIC_CPU_AUTOPROBE=y
CONFIG_GENERIC_CPU_VULNERABILITIES=y
# end of Generic Driver Options

#
# Bus devices
#
# CONFIG_ARM_INTEGRATOR_LM is not set
# CONFIG_BT1_APB is not set
# CONFIG_BT1_AXI is not set
# CONFIG_HISILICON_LPC is not set
# CONFIG_INTEL_IXP4XX_EB is not set
# CONFIG_QCOM_EBI2 is not set
# CONFIG_MHI_BUS is not set
# CONFIG_MHI_BUS_EP is not set
# end of Bus devices

#
# Firmware Drivers
#

#
# ARM System Control and Management Interface Protocol
#
# CONFIG_ARM_SCMI_PROTOCOL is not set
# end of ARM System Control and Management Interface Protocol

# CONFIG_EDD is not set
CONFIG_FIRMWARE_MEMMAP=y
# CONFIG_DMIID is not set
# CONFIG_DMI_SYSFS is not set
CONFIG_DMI_SCAN_MACHINE_NON_EFI_FALLBACK=y
# CONFIG_FW_CFG_SYSFS is not set
# CONFIG_SYSFB_SIMPLEFB is not set
# CONFIG_BCM47XX_NVRAM is not set
# CONFIG_GOOGLE_FIRMWARE is not set

#
# Tegra firmware driver
#
# end of Tegra firmware driver
# end of Firmware Drivers

# CONFIG_GNSS is not set
# CONFIG_MTD is not set
# CONFIG_OF is not set
CONFIG_ARCH_MIGHT_HAVE_PC_PARPORT=y
# CONFIG_PARPORT is not set
# CONFIG_BLK_DEV is not set

#
# NVME Support
#
# CONFIG_NVME_FC is not set
# end of NVME Support

#
# Misc devices
#
# CONFIG_DUMMY_IRQ is not set
# CONFIG_ATMEL_SSC is not set
# CONFIG_ENCLOSURE_SERVICES is not set
# CONFIG_QCOM_COINCELL is not set
# CONFIG_SRAM is not set
# CONFIG_XILINX_SDFEC is not set
# CONFIG_C2PORT is not set

#
# EEPROM support
#
# CONFIG_EEPROM_93CX6 is not set
# end of EEPROM support

#
# Texas Instruments shared transport line discipline
#
# end of Texas Instruments shared transport line discipline

#
# Altera FPGA firmware download module (requires I2C)
#
# CONFIG_ECHO is not set
# CONFIG_PVPANIC is not set
# end of Misc devices

#
# SCSI device support
#
CONFIG_SCSI_MOD=y
# CONFIG_RAID_ATTRS is not set
# CONFIG_SCSI is not set
# end of SCSI device support

# CONFIG_ATA is not set
# CONFIG_MD is not set
# CONFIG_TARGET_CORE is not set

#
# IEEE 1394 (FireWire) support
#
# CONFIG_FIREWIRE is not set
# end of IEEE 1394 (FireWire) support

# CONFIG_MACINTOSH_DRIVERS is not set

#
# Input device support
#
CONFIG_INPUT=y
# CONFIG_INPUT_FF_MEMLESS is not set
# CONFIG_INPUT_SPARSEKMAP is not set
# CONFIG_INPUT_MATRIXKMAP is not set

#
# Userland interfaces
#
# CONFIG_INPUT_MOUSEDEV is not set
# CONFIG_INPUT_JOYDEV is not set
# CONFIG_INPUT_EVDEV is not set
# CONFIG_INPUT_EVBUG is not set

#
# Input Device Drivers
#
# CONFIG_INPUT_KEYBOARD is not set
# CONFIG_INPUT_MOUSE is not set
# CONFIG_INPUT_JOYSTICK is not set
# CONFIG_INPUT_TABLET is not set
# CONFIG_INPUT_TOUCHSCREEN is not set
# CONFIG_INPUT_MISC is not set
# CONFIG_RMI4_CORE is not set

#
# Hardware I/O ports
#
# CONFIG_SERIO is not set
CONFIG_ARCH_MIGHT_HAVE_PC_SERIO=y
# CONFIG_GAMEPORT is not set
# end of Hardware I/O ports
# end of Input device support

#
# Character devices
#
CONFIG_TTY=y
CONFIG_VT=y
CONFIG_CONSOLE_TRANSLATIONS=y
CONFIG_VT_CONSOLE=y
CONFIG_HW_CONSOLE=y
# CONFIG_VT_HW_CONSOLE_BINDING is not set
CONFIG_UNIX98_PTYS=y
# CONFIG_LEGACY_PTYS is not set
# CONFIG_LDISC_AUTOLOAD is not set

#
# Serial drivers
#
# CONFIG_SERIAL_8250 is not set

#
# Non-8250 serial port support
#
# CONFIG_SERIAL_AMBA_PL010 is not set
# CONFIG_SERIAL_MESON is not set
# CONFIG_SERIAL_CLPS711X is not set
# CONFIG_SERIAL_SAMSUNG is not set
# CONFIG_SERIAL_TEGRA is not set
# CONFIG_SERIAL_IMX is not set
# CONFIG_SERIAL_UARTLITE is not set
# CONFIG_SERIAL_SH_SCI is not set
# CONFIG_SERIAL_MSM is not set
# CONFIG_SERIAL_VT8500 is not set
# CONFIG_SERIAL_OMAP is not set
# CONFIG_SERIAL_LANTIQ is not set
# CONFIG_SERIAL_SCCNXP is not set
# CONFIG_SERIAL_TIMBERDALE is not set
# CONFIG_SERIAL_BCM63XX is not set
# CONFIG_SERIAL_ALTERA_JTAGUART is not set
# CONFIG_SERIAL_ALTERA_UART is not set
# CONFIG_SERIAL_MXS_AUART is not set
# CONFIG_SERIAL_MPS2_UART is not set
# CONFIG_SERIAL_ARC is not set
# CONFIG_SERIAL_FSL_LPUART is not set
# CONFIG_SERIAL_FSL_LINFLEXUART is not set
# CONFIG_SERIAL_ST_ASC is not set
# CONFIG_SERIAL_STM32 is not set
# CONFIG_SERIAL_OWL is not set
# CONFIG_SERIAL_RDA is not set
# CONFIG_SERIAL_LITEUART is not set
# CONFIG_SERIAL_SUNPLUS is not set
# end of Serial drivers

# CONFIG_SERIAL_NONSTANDARD is not set
# CONFIG_NULL_TTY is not set
# CONFIG_SERIAL_DEV_BUS is not set
# CONFIG_VIRTIO_CONSOLE is not set
# CONFIG_IPMI_HANDLER is not set
# CONFIG_ASPEED_KCS_IPMI_BMC is not set
# CONFIG_NPCM7XX_KCS_IPMI_BMC is not set
# CONFIG_HW_RANDOM is not set
# CONFIG_MWAVE is not set
# CONFIG_DEVMEM is not set
# CONFIG_NVRAM is not set
# CONFIG_HANGCHECK_TIMER is not set
# CONFIG_TCG_TPM is not set
# CONFIG_TELCLOCK is not set
# CONFIG_RANDOM_TRUST_CPU is not set
# CONFIG_RANDOM_TRUST_BOOTLOADER is not set
# end of Character devices

#
# I2C support
#
# CONFIG_I2C is not set
# end of I2C support

# CONFIG_I3C is not set
# CONFIG_SPI is not set
# CONFIG_SPMI is not set
# CONFIG_HSI is not set
# CONFIG_PPS is not set

#
# PTP clock support
#
CONFIG_PTP_1588_CLOCK_OPTIONAL=y

#
# Enable PHYLIB and NETWORK_PHY_TIMESTAMPING to see the additional clocks.
#
# end of PTP clock support

# CONFIG_PINCTRL is not set
# CONFIG_GPIOLIB is not set
# CONFIG_W1 is not set
# CONFIG_POWER_RESET is not set
# CONFIG_POWER_SUPPLY is not set
# CONFIG_HWMON is not set
# CONFIG_THERMAL is not set
# CONFIG_WATCHDOG is not set
CONFIG_SSB_POSSIBLE=y
# CONFIG_SSB is not set
CONFIG_BCMA_POSSIBLE=y
# CONFIG_BCMA is not set

#
# Multifunction device drivers
#
# CONFIG_MFD_SUN4I_GPADC is not set
# CONFIG_MFD_AT91_USART is not set
# CONFIG_MFD_MADERA is not set
# CONFIG_MFD_EXYNOS_LPASS is not set
# CONFIG_MFD_MXS_LRADC is not set
# CONFIG_MFD_MX25_TSADC is not set
# CONFIG_HTC_PASIC3 is not set
# CONFIG_MFD_KEMPLD is not set
# CONFIG_MFD_MT6397 is not set
# CONFIG_MFD_PM8XXX is not set
# CONFIG_MFD_SM501 is not set
# CONFIG_ABX500_CORE is not set
# CONFIG_MFD_SUN6I_PRCM is not set
# CONFIG_MFD_SYSCON is not set
# CONFIG_MFD_TI_AM335X_TSCADC is not set
# CONFIG_MFD_TQMX86 is not set
# CONFIG_MFD_STM32_LPTIMER is not set
# CONFIG_MFD_STM32_TIMERS is not set
# end of Multifunction device drivers

# CONFIG_REGULATOR is not set
# CONFIG_RC_CORE is not set

#
# CEC support
#
# CONFIG_MEDIA_CEC_SUPPORT is not set
# end of CEC support

# CONFIG_MEDIA_SUPPORT is not set

#
# Graphics support
#
# CONFIG_IMX_IPUV3_CORE is not set
# CONFIG_DRM is not set

#
# ARM devices
#
# end of ARM devices

#
# Frame buffer Devices
#
# CONFIG_FB is not set
# CONFIG_MMP_DISP is not set
# end of Frame buffer Devices

#
# Backlight & LCD device support
#
# CONFIG_LCD_CLASS_DEVICE is not set
# CONFIG_BACKLIGHT_CLASS_DEVICE is not set
# end of Backlight & LCD device support

#
# Console display driver support
#
CONFIG_VGA_CONSOLE=y
CONFIG_DUMMY_CONSOLE=y
CONFIG_DUMMY_CONSOLE_COLUMNS=80
CONFIG_DUMMY_CONSOLE_ROWS=25
# end of Console display driver support
# end of Graphics support

# CONFIG_SOUND is not set

#
# HID support
#
# CONFIG_HID is not set
# end of HID support

CONFIG_USB_OHCI_LITTLE_ENDIAN=y
# CONFIG_USB_SUPPORT is not set
# CONFIG_MMC is not set
# CONFIG_MEMSTICK is not set
# CONFIG_NEW_LEDS is not set
# CONFIG_ACCESSIBILITY is not set
CONFIG_EDAC_ATOMIC_SCRUB=y
CONFIG_EDAC_SUPPORT=y
CONFIG_RTC_LIB=y
CONFIG_RTC_MC146818_LIB=y
# CONFIG_RTC_CLASS is not set
# CONFIG_DMADEVICES is not set

#
# DMABUF options
#
# CONFIG_SYNC_FILE is not set
# CONFIG_DMABUF_HEAPS is not set
# end of DMABUF options

# CONFIG_AUXDISPLAY is not set
# CONFIG_UIO is not set
# CONFIG_VFIO is not set
# CONFIG_VIRT_DRIVERS is not set
# CONFIG_VIRTIO_MENU is not set
# CONFIG_VHOST_MENU is not set

#
# Microsoft Hyper-V guest support
#
# end of Microsoft Hyper-V guest support

# CONFIG_GREYBUS is not set
# CONFIG_COMEDI is not set
# CONFIG_STAGING is not set
# CONFIG_CHROME_PLATFORMS is not set
# CONFIG_MELLANOX_PLATFORM is not set
# CONFIG_OLPC_XO175 is not set
# CONFIG_SURFACE_PLATFORMS is not set
# CONFIG_X86_PLATFORM_DEVICES is not set
# CONFIG_COMMON_CLK is not set
# CONFIG_HWSPINLOCK is not set

#
# Clock Source drivers
#
CONFIG_CLKEVT_I8253=y
CONFIG_I8253_LOCK=y
CONFIG_CLKBLD_I8253=y
# CONFIG_BCM2835_TIMER is not set
# CONFIG_BCM_KONA_TIMER is not set
# CONFIG_DAVINCI_TIMER is not set
# CONFIG_DIGICOLOR_TIMER is not set
# CONFIG_OMAP_DM_TIMER is not set
# CONFIG_DW_APB_TIMER is not set
# CONFIG_FTTMR010_TIMER is not set
# CONFIG_IXP4XX_TIMER is not set
# CONFIG_MESON6_TIMER is not set
# CONFIG_OWL_TIMER is not set
# CONFIG_RDA_TIMER is not set
# CONFIG_SUN4I_TIMER is not set
# CONFIG_TEGRA_TIMER is not set
# CONFIG_VT8500_TIMER is not set
# CONFIG_NPCM7XX_TIMER is not set
# CONFIG_ASM9260_TIMER is not set
# CONFIG_CLKSRC_DBX500_PRCMU is not set
# CONFIG_CLPS711X_TIMER is not set
# CONFIG_MXS_TIMER is not set
# CONFIG_NSPIRE_TIMER is not set
# CONFIG_INTEGRATOR_AP_TIMER is not set
# CONFIG_CLKSRC_PISTACHIO is not set
# CONFIG_CLKSRC_STM32_LP is not set
# CONFIG_ARMV7M_SYSTICK is not set
# CONFIG_ATMEL_PIT is not set
# CONFIG_ATMEL_ST is not set
# CONFIG_CLKSRC_SAMSUNG_PWM is not set
# CONFIG_FSL_FTM_TIMER is not set
# CONFIG_OXNAS_RPS_TIMER is not set
# CONFIG_MTK_TIMER is not set
# CONFIG_SH_TIMER_CMT is not set
# CONFIG_SH_TIMER_MTU2 is not set
# CONFIG_RENESAS_OSTM is not set
# CONFIG_SH_TIMER_TMU is not set
# CONFIG_EM_TIMER_STI is not set
# CONFIG_CLKSRC_PXA is not set
# CONFIG_TIMER_IMX_SYS_CTR is not set
# CONFIG_CLKSRC_ST_LPC is not set
# CONFIG_GXP_TIMER is not set
# CONFIG_MSC313E_TIMER is not set
# CONFIG_MICROCHIP_PIT64B is not set
# end of Clock Source drivers

# CONFIG_MAILBOX is not set
# CONFIG_IOMMU_SUPPORT is not set

#
# Remoteproc drivers
#
# CONFIG_REMOTEPROC is not set
# end of Remoteproc drivers

#
# Rpmsg drivers
#
# CONFIG_RPMSG_VIRTIO is not set
# end of Rpmsg drivers

#
# SOC (System On Chip) specific Drivers
#

#
# Amlogic SoC drivers
#
# CONFIG_MESON_CANVAS is not set
# CONFIG_MESON_CLK_MEASURE is not set
# CONFIG_MESON_GX_SOCINFO is not set
# CONFIG_MESON_MX_SOCINFO is not set
# end of Amlogic SoC drivers

#
# Apple SoC drivers
#
# CONFIG_APPLE_SART is not set
# end of Apple SoC drivers

#
# ASPEED SoC drivers
#
# CONFIG_ASPEED_LPC_CTRL is not set
# CONFIG_ASPEED_LPC_SNOOP is not set
# CONFIG_ASPEED_UART_ROUTING is not set
# CONFIG_ASPEED_P2A_CTRL is not set
# CONFIG_ASPEED_SOCINFO is not set
# end of ASPEED SoC drivers

# CONFIG_AT91_SOC_ID is not set
# CONFIG_AT91_SOC_SFR is not set

#
# Broadcom SoC drivers
#
# CONFIG_SOC_BCM63XX is not set
# CONFIG_SOC_BRCMSTB is not set
# end of Broadcom SoC drivers

#
# NXP/Freescale QorIQ SoC drivers
#
# end of NXP/Freescale QorIQ SoC drivers

#
# fujitsu SoC drivers
#
# end of fujitsu SoC drivers

#
# i.MX SoC drivers
#
# CONFIG_SOC_IMX8M is not set
# CONFIG_SOC_IMX9 is not set
# end of i.MX SoC drivers

#
# IXP4xx SoC drivers
#
# CONFIG_IXP4XX_QMGR is not set
# CONFIG_IXP4XX_NPE is not set
# end of IXP4xx SoC drivers

#
# Enable LiteX SoC Builder specific drivers
#
# CONFIG_LITEX_SOC_CONTROLLER is not set
# end of Enable LiteX SoC Builder specific drivers

#
# MediaTek SoC drivers
#
# CONFIG_MTK_CMDQ is not set
# CONFIG_MTK_DEVAPC is not set
# CONFIG_MTK_INFRACFG is not set
# CONFIG_MTK_MMSYS is not set
# end of MediaTek SoC drivers

#
# Qualcomm SoC drivers
#
# CONFIG_QCOM_GENI_SE is not set
# CONFIG_QCOM_GSBI is not set
# CONFIG_QCOM_LLCC is not set
# CONFIG_QCOM_RPMH is not set
# CONFIG_QCOM_SPM is not set
# CONFIG_QCOM_ICC_BWMON is not set
# end of Qualcomm SoC drivers

# CONFIG_SOC_RENESAS is not set
# CONFIG_ROCKCHIP_GRF is not set
# CONFIG_SOC_SAMSUNG is not set
# CONFIG_SOC_TI is not set
# CONFIG_UX500_SOC_ID is not set

#
# Xilinx SoC drivers
#
# end of Xilinx SoC drivers
# end of SOC (System On Chip) specific Drivers

# CONFIG_PM_DEVFREQ is not set
# CONFIG_EXTCON is not set
# CONFIG_MEMORY is not set
# CONFIG_IIO is not set
# CONFIG_PWM is not set

#
# IRQ chip support
#
# CONFIG_AL_FIC is not set
# CONFIG_RENESAS_INTC_IRQPIN is not set
# CONFIG_RENESAS_IRQC is not set
# CONFIG_RENESAS_RZA1_IRQC is not set
# CONFIG_RENESAS_RZG2L_IRQC is not set
# CONFIG_SL28CPLD_INTC is not set
# CONFIG_TS4800_IRQ is not set
# CONFIG_INGENIC_TCU_IRQ is not set
# CONFIG_IRQ_UNIPHIER_AIDET is not set
# CONFIG_MESON_IRQ_GPIO is not set
# CONFIG_IMX_IRQSTEER is not set
# CONFIG_IMX_INTMUX is not set
# CONFIG_EXYNOS_IRQ_COMBINER is not set
# CONFIG_MST_IRQ is not set
# CONFIG_MCHP_EIC is not set
# CONFIG_SUNPLUS_SP7021_INTC is not set
# end of IRQ chip support

# CONFIG_IPACK_BUS is not set
# CONFIG_RESET_CONTROLLER is not set

#
# PHY Subsystem
#
# CONFIG_GENERIC_PHY is not set
# CONFIG_PHY_PISTACHIO_USB is not set
# CONFIG_PHY_CAN_TRANSCEIVER is not set

#
# PHY drivers for Broadcom platforms
#
# CONFIG_PHY_BCM63XX_USBH is not set
# CONFIG_BCM_KONA_USB2_PHY is not set
# end of PHY drivers for Broadcom platforms

# CONFIG_PHY_HI6220_USB is not set
# CONFIG_PHY_HI3660_USB is not set
# CONFIG_PHY_HI3670_USB is not set
# CONFIG_PHY_HI3670_PCIE is not set
# CONFIG_PHY_HISTB_COMBPHY is not set
# CONFIG_PHY_HISI_INNO_USB2 is not set
# CONFIG_PHY_PXA_28NM_HSIC is not set
# CONFIG_PHY_PXA_28NM_USB2 is not set
# CONFIG_PHY_PXA_USB is not set
# CONFIG_PHY_MMP3_USB is not set
# CONFIG_PHY_MMP3_HSIC is not set
# CONFIG_PHY_MT7621_PCI is not set
# CONFIG_PHY_RALINK_USB is not set
# CONFIG_PHY_RCAR_GEN3_USB3 is not set
# CONFIG_PHY_ROCKCHIP_DPHY_RX0 is not set
# CONFIG_PHY_ROCKCHIP_PCIE is not set
# CONFIG_PHY_ROCKCHIP_SNPS_PCIE3 is not set
# CONFIG_PHY_EXYNOS_MIPI_VIDEO is not set
# CONFIG_PHY_SAMSUNG_USB2 is not set
# CONFIG_PHY_ST_SPEAR1310_MIPHY is not set
# CONFIG_PHY_ST_SPEAR1340_MIPHY is not set
# CONFIG_PHY_TEGRA194_P2U is not set
# CONFIG_PHY_DA8XX_USB is not set
# CONFIG_OMAP_CONTROL_PHY is not set
# CONFIG_TI_PIPE3 is not set
# CONFIG_PHY_INTEL_KEEMBAY_EMMC is not set
# CONFIG_PHY_INTEL_KEEMBAY_USB is not set
# CONFIG_PHY_INTEL_LGM_EMMC is not set
# CONFIG_PHY_XILINX_ZYNQMP is not set
# end of PHY Subsystem

# CONFIG_POWERCAP is not set
# CONFIG_MCB is not set

#
# Performance monitor support
#
# CONFIG_ARM_CCN is not set
# CONFIG_ARM_CMN is not set
# CONFIG_FSL_IMX8_DDR_PMU is not set
# CONFIG_XGENE_PMU is not set
# CONFIG_ARM_DMC620_PMU is not set
# CONFIG_MARVELL_CN10K_TAD_PMU is not set
# CONFIG_ALIBABA_UNCORE_DRW_PMU is not set
# CONFIG_MARVELL_CN10K_DDR_PMU is not set
# end of Performance monitor support

# CONFIG_RAS is not set

#
# Android
#
# CONFIG_ANDROID_BINDER_IPC is not set
# end of Android

# CONFIG_DAX is not set
# CONFIG_NVMEM is not set

#
# HW tracing support
#
# CONFIG_STM is not set
# CONFIG_INTEL_TH is not set
# end of HW tracing support

# CONFIG_FPGA is not set
# CONFIG_TEE is not set
# CONFIG_SIOX is not set
# CONFIG_SLIMBUS is not set
# CONFIG_INTERCONNECT is not set
# CONFIG_COUNTER is not set
# CONFIG_PECI is not set
# CONFIG_HTE is not set
# end of Device Drivers

#
# File systems
#
CONFIG_DCACHE_WORD_ACCESS=y
# CONFIG_VALIDATE_FS_PARSER is not set
# CONFIG_EXT2_FS is not set
# CONFIG_EXT3_FS is not set
# CONFIG_EXT4_FS is not set
# CONFIG_REISERFS_FS is not set
# CONFIG_JFS_FS is not set
# CONFIG_XFS_FS is not set
# CONFIG_GFS2_FS is not set
# CONFIG_BTRFS_FS is not set
# CONFIG_NILFS2_FS is not set
# CONFIG_F2FS_FS is not set
CONFIG_EXPORTFS=y
# CONFIG_EXPORTFS_BLOCK_OPS is not set
CONFIG_FILE_LOCKING=y
# CONFIG_FS_ENCRYPTION is not set
# CONFIG_FS_VERITY is not set
# CONFIG_DNOTIFY is not set
# CONFIG_INOTIFY_USER is not set
# CONFIG_FANOTIFY is not set
# CONFIG_QUOTA is not set
# CONFIG_AUTOFS4_FS is not set
# CONFIG_AUTOFS_FS is not set
# CONFIG_FUSE_FS is not set
# CONFIG_OVERLAY_FS is not set

#
# Caches
#
# CONFIG_FSCACHE is not set
# end of Caches

#
# CD-ROM/DVD Filesystems
#
# CONFIG_ISO9660_FS is not set
# CONFIG_UDF_FS is not set
# end of CD-ROM/DVD Filesystems

#
# DOS/FAT/EXFAT/NT Filesystems
#
# CONFIG_MSDOS_FS is not set
# CONFIG_VFAT_FS is not set
# CONFIG_EXFAT_FS is not set
# CONFIG_NTFS_FS is not set
# CONFIG_NTFS3_FS is not set
# end of DOS/FAT/EXFAT/NT Filesystems

#
# Pseudo filesystems
#
CONFIG_PROC_FS=y
# CONFIG_PROC_KCORE is not set
CONFIG_PROC_SYSCTL=y
CONFIG_PROC_PAGE_MONITOR=y
# CONFIG_PROC_CHILDREN is not set
CONFIG_PROC_PID_ARCH_STATUS=y
CONFIG_KERNFS=y
CONFIG_SYSFS=y
# CONFIG_TMPFS is not set
# CONFIG_HUGETLBFS is not set
CONFIG_ARCH_WANT_HUGETLB_PAGE_OPTIMIZE_VMEMMAP=y
CONFIG_ARCH_HAS_GIGANTIC_PAGE=y
# CONFIG_CONFIGFS_FS is not set
# end of Pseudo filesystems

# CONFIG_MISC_FILESYSTEMS is not set
# CONFIG_NLS is not set
# CONFIG_UNICODE is not set
CONFIG_IO_WQ=y
# end of File systems

#
# Security options
#
# CONFIG_KEYS is not set
# CONFIG_SECURITY_DMESG_RESTRICT is not set
# CONFIG_SECURITY is not set
# CONFIG_SECURITYFS is not set
CONFIG_HAVE_HARDENED_USERCOPY_ALLOCATOR=y
# CONFIG_HARDENED_USERCOPY is not set
# CONFIG_FORTIFY_SOURCE is not set
# CONFIG_STATIC_USERMODEHELPER is not set
CONFIG_DEFAULT_SECURITY_DAC=y
CONFIG_LSM="landlock,lockdown,yama,loadpin,safesetid,integrity,bpf"

#
# Kernel hardening options
#

#
# Memory initialization
#
CONFIG_INIT_STACK_NONE=y
# CONFIG_INIT_ON_ALLOC_DEFAULT_ON is not set
# CONFIG_INIT_ON_FREE_DEFAULT_ON is not set
CONFIG_CC_HAS_ZERO_CALL_USED_REGS=y
# CONFIG_ZERO_CALL_USED_REGS is not set
# end of Memory initialization

CONFIG_RANDSTRUCT_NONE=y
# end of Kernel hardening options
# end of Security options

# CONFIG_CRYPTO is not set

#
# Library routines
#
# CONFIG_PACKING is not set
CONFIG_BITREVERSE=y
CONFIG_GENERIC_STRNCPY_FROM_USER=y
CONFIG_GENERIC_STRNLEN_USER=y
# CONFIG_CORDIC is not set
# CONFIG_PRIME_NUMBERS is not set
CONFIG_GENERIC_PCI_IOMAP=y
CONFIG_GENERIC_IOMAP=y
CONFIG_ARCH_USE_CMPXCHG_LOCKREF=y
CONFIG_ARCH_HAS_FAST_MULTIPLIER=y
CONFIG_ARCH_USE_SYM_ANNOTATIONS=y

#
# Crypto library routines
#
CONFIG_CRYPTO_LIB_BLAKE2S_GENERIC=y
# CONFIG_CRYPTO_LIB_CHACHA is not set
# CONFIG_CRYPTO_LIB_CURVE25519 is not set
CONFIG_CRYPTO_LIB_POLY1305_RSIZE=11
# CONFIG_CRYPTO_LIB_POLY1305 is not set
# end of Crypto library routines

# CONFIG_CRC_CCITT is not set
# CONFIG_CRC16 is not set
# CONFIG_CRC_T10DIF is not set
# CONFIG_CRC64_ROCKSOFT is not set
# CONFIG_CRC_ITU_T is not set
CONFIG_CRC32=y
# CONFIG_CRC32_SELFTEST is not set
CONFIG_CRC32_SLICEBY8=y
# CONFIG_CRC32_SLICEBY4 is not set
# CONFIG_CRC32_SARWATE is not set
# CONFIG_CRC32_BIT is not set
# CONFIG_CRC64 is not set
# CONFIG_CRC4 is not set
# CONFIG_CRC7 is not set
# CONFIG_LIBCRC32C is not set
# CONFIG_CRC8 is not set
# CONFIG_RANDOM32_SELFTEST is not set
# CONFIG_XZ_DEC is not set
CONFIG_HAS_IOMEM=y
CONFIG_HAS_IOPORT_MAP=y
CONFIG_HAS_DMA=y
CONFIG_NEED_SG_DMA_LENGTH=y
CONFIG_NEED_DMA_MAP_STATE=y
CONFIG_ARCH_DMA_ADDR_T_64BIT=y
CONFIG_SWIOTLB=y
# CONFIG_DMA_API_DEBUG is not set
# CONFIG_IRQ_POLL is not set
CONFIG_HAVE_GENERIC_VDSO=y
CONFIG_GENERIC_GETTIMEOFDAY=y
CONFIG_GENERIC_VDSO_TIME_NS=y
CONFIG_ARCH_HAS_PMEM_API=y
CONFIG_ARCH_HAS_UACCESS_FLUSHCACHE=y
CONFIG_ARCH_HAS_COPY_MC=y
CONFIG_ARCH_STACKWALK=y
CONFIG_STACKDEPOT=y
CONFIG_SBITMAP=y
# CONFIG_PARMAN is not set
# CONFIG_OBJAGG is not set
# end of Library routines

#
# Kernel hacking
#

#
# printk and dmesg options
#
# CONFIG_PRINTK_TIME is not set
# CONFIG_PRINTK_CALLER is not set
# CONFIG_STACKTRACE_BUILD_ID is not set
CONFIG_CONSOLE_LOGLEVEL_DEFAULT=7
CONFIG_CONSOLE_LOGLEVEL_QUIET=4
CONFIG_MESSAGE_LOGLEVEL_DEFAULT=4
# CONFIG_DYNAMIC_DEBUG is not set
# CONFIG_DYNAMIC_DEBUG_CORE is not set
# CONFIG_SYMBOLIC_ERRNAME is not set
CONFIG_DEBUG_BUGVERBOSE=y
# end of printk and dmesg options

# CONFIG_DEBUG_KERNEL is not set

#
# Compile-time checks and compiler options
#
CONFIG_AS_HAS_NON_CONST_LEB128=y
CONFIG_FRAME_WARN=2048
# CONFIG_STRIP_ASM_SYMS is not set
# CONFIG_HEADERS_INSTALL is not set
CONFIG_DEBUG_SECTION_MISMATCH=y
CONFIG_SECTION_MISMATCH_WARN_ONLY=y
CONFIG_OBJTOOL=y
# end of Compile-time checks and compiler options

#
# Generic Kernel Debugging Instruments
#
# CONFIG_MAGIC_SYSRQ is not set
# CONFIG_DEBUG_FS is not set
CONFIG_HAVE_ARCH_KGDB=y
CONFIG_ARCH_HAS_UBSAN_SANITIZE_ALL=y
# CONFIG_UBSAN is not set
CONFIG_HAVE_ARCH_KCSAN=y
CONFIG_HAVE_KCSAN_COMPILER=y
# end of Generic Kernel Debugging Instruments

#
# Networking Debugging
#
# end of Networking Debugging

#
# Memory Debugging
#
# CONFIG_PAGE_EXTENSION is not set
CONFIG_SLUB_DEBUG=y
# CONFIG_SLUB_DEBUG_ON is not set
# CONFIG_PAGE_TABLE_CHECK is not set
# CONFIG_PAGE_POISONING is not set
# CONFIG_DEBUG_RODATA_TEST is not set
CONFIG_ARCH_HAS_DEBUG_WX=y
# CONFIG_DEBUG_WX is not set
CONFIG_GENERIC_PTDUMP=y
CONFIG_HAVE_DEBUG_KMEMLEAK=y
CONFIG_ARCH_HAS_DEBUG_VM_PGTABLE=y
# CONFIG_DEBUG_VM_PGTABLE is not set
CONFIG_ARCH_HAS_DEBUG_VIRTUAL=y
CONFIG_DEBUG_MEMORY_INIT=y
CONFIG_ARCH_SUPPORTS_KMAP_LOCAL_FORCE_MAP=y
CONFIG_HAVE_ARCH_KASAN=y
CONFIG_HAVE_ARCH_KASAN_VMALLOC=y
CONFIG_CC_HAS_KASAN_GENERIC=y
CONFIG_CC_HAS_WORKING_NOSANITIZE_ADDRESS=y
# CONFIG_KASAN is not set
CONFIG_HAVE_ARCH_KFENCE=y
# CONFIG_KFENCE is not set
CONFIG_HAVE_ARCH_KMSAN=y
# end of Memory Debugging

#
# Debug Oops, Lockups and Hangs
#
# CONFIG_PANIC_ON_OOPS is not set
CONFIG_PANIC_ON_OOPS_VALUE=0
CONFIG_PANIC_TIMEOUT=0
CONFIG_HARDLOCKUP_CHECK_TIMESTAMP=y
# end of Debug Oops, Lockups and Hangs

#
# Scheduler Debugging
#
# end of Scheduler Debugging

# CONFIG_DEBUG_TIMEKEEPING is not set

#
# Lock Debugging (spinlocks, mutexes, etc...)
#
CONFIG_LOCK_DEBUGGING_SUPPORT=y
# CONFIG_WW_MUTEX_SELFTEST is not set
# end of Lock Debugging (spinlocks, mutexes, etc...)

# CONFIG_DEBUG_IRQFLAGS is not set
CONFIG_STACKTRACE=y
# CONFIG_WARN_ALL_UNSEEDED_RANDOM is not set

#
# Debug kernel data structures
#
# CONFIG_BUG_ON_DATA_CORRUPTION is not set
# end of Debug kernel data structures

#
# RCU Debugging
#
# end of RCU Debugging

CONFIG_USER_STACKTRACE_SUPPORT=y
CONFIG_HAVE_RETHOOK=y
CONFIG_HAVE_FUNCTION_TRACER=y
CONFIG_HAVE_DYNAMIC_FTRACE=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_REGS=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS=y
CONFIG_HAVE_DYNAMIC_FTRACE_WITH_ARGS=y
CONFIG_HAVE_DYNAMIC_FTRACE_NO_PATCHABLE=y
CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
CONFIG_HAVE_SYSCALL_TRACEPOINTS=y
CONFIG_HAVE_FENTRY=y
CONFIG_HAVE_OBJTOOL_MCOUNT=y
CONFIG_HAVE_C_RECORDMCOUNT=y
CONFIG_HAVE_BUILDTIME_MCOUNT_SORT=y
CONFIG_TRACING_SUPPORT=y
# CONFIG_FTRACE is not set
# CONFIG_SAMPLES is not set
CONFIG_HAVE_SAMPLE_FTRACE_DIRECT=y
CONFIG_HAVE_SAMPLE_FTRACE_DIRECT_MULTI=y
CONFIG_ARCH_HAS_DEVMEM_IS_ALLOWED=y

#
# x86 Debugging
#
# CONFIG_X86_VERBOSE_BOOTUP is not set
CONFIG_EARLY_PRINTK=y
CONFIG_HAVE_MMIOTRACE_SUPPORT=y
CONFIG_IO_DELAY_0X80=y
# CONFIG_IO_DELAY_0XED is not set
# CONFIG_IO_DELAY_UDELAY is not set
# CONFIG_IO_DELAY_NONE is not set
CONFIG_UNWINDER_ORC=y
# CONFIG_UNWINDER_FRAME_POINTER is not set
# end of x86 Debugging

#
# Kernel Testing and Coverage
#
# CONFIG_KUNIT is not set
CONFIG_ARCH_HAS_KCOV=y
CONFIG_CC_HAS_SANCOV_TRACE_PC=y
# CONFIG_KCOV is not set
# CONFIG_RUNTIME_TESTING_MENU is not set
CONFIG_ARCH_USE_MEMTEST=y
# CONFIG_MEMTEST is not set
# end of Kernel Testing and Coverage

#
# Rust hacking
#
# end of Rust hacking

CONFIG_WARN_MISSING_DOCUMENTS=y
CONFIG_WARN_ABI_ERRORS=y
# end of Kernel hacking