Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 496 insertions, 0 deletions

diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-stats.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-stats.c
new file mode 100644
index 000000000..2795eef91
--- /dev/null
+++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-stats.c
@@ -0,0 +1,496 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Rockchip ISP1 Driver - Stats subdevice
+ *
+ * Copyright (C) 2017 Rockchip Electronics Co., Ltd.
+ */
+
+#include <media/v4l2-common.h>
+#include <media/v4l2-event.h>
+#include <media/v4l2-ioctl.h>
+#include <media/videobuf2-core.h>
+#include <media/videobuf2-vmalloc.h>	/* for ISP statistics */
+
+#include "rkisp1-common.h"
+
+#define RKISP1_STATS_DEV_NAME	RKISP1_DRIVER_NAME "_stats"
+
+#define RKISP1_ISP_STATS_REQ_BUFS_MIN 2
+#define RKISP1_ISP_STATS_REQ_BUFS_MAX 8
+
+static int rkisp1_stats_enum_fmt_meta_cap(struct file *file, void *priv,
+					  struct v4l2_fmtdesc *f)
+{
+	struct video_device *video = video_devdata(file);
+	struct rkisp1_stats *stats = video_get_drvdata(video);
+
+	if (f->index > 0 || f->type != video->queue->type)
+		return -EINVAL;
+
+	f->pixelformat = stats->vdev_fmt.fmt.meta.dataformat;
+	return 0;
+}
+
+static int rkisp1_stats_g_fmt_meta_cap(struct file *file, void *priv,
+				       struct v4l2_format *f)
+{
+	struct video_device *video = video_devdata(file);
+	struct rkisp1_stats *stats = video_get_drvdata(video);
+	struct v4l2_meta_format *meta = &f->fmt.meta;
+
+	if (f->type != video->queue->type)
+		return -EINVAL;
+
+	memset(meta, 0, sizeof(*meta));
+	meta->dataformat = stats->vdev_fmt.fmt.meta.dataformat;
+	meta->buffersize = stats->vdev_fmt.fmt.meta.buffersize;
+
+	return 0;
+}
+
+static int rkisp1_stats_querycap(struct file *file,
+				 void *priv, struct v4l2_capability *cap)
+{
+	struct video_device *vdev = video_devdata(file);
+
+	strscpy(cap->driver, RKISP1_DRIVER_NAME, sizeof(cap->driver));
+	strscpy(cap->card, vdev->name, sizeof(cap->card));
+	strscpy(cap->bus_info, RKISP1_BUS_INFO, sizeof(cap->bus_info));
+
+	return 0;
+}
+
+/* ISP video device IOCTLs */
+static const struct v4l2_ioctl_ops rkisp1_stats_ioctl = {
+	.vidioc_reqbufs = vb2_ioctl_reqbufs,
+	.vidioc_querybuf = vb2_ioctl_querybuf,
+	.vidioc_create_bufs = vb2_ioctl_create_bufs,
+	.vidioc_qbuf = vb2_ioctl_qbuf,
+	.vidioc_dqbuf = vb2_ioctl_dqbuf,
+	.vidioc_prepare_buf = vb2_ioctl_prepare_buf,
+	.vidioc_expbuf = vb2_ioctl_expbuf,
+	.vidioc_streamon = vb2_ioctl_streamon,
+	.vidioc_streamoff = vb2_ioctl_streamoff,
+	.vidioc_enum_fmt_meta_cap = rkisp1_stats_enum_fmt_meta_cap,
+	.vidioc_g_fmt_meta_cap = rkisp1_stats_g_fmt_meta_cap,
+	.vidioc_s_fmt_meta_cap = rkisp1_stats_g_fmt_meta_cap,
+	.vidioc_try_fmt_meta_cap = rkisp1_stats_g_fmt_meta_cap,
+	.vidioc_querycap = rkisp1_stats_querycap,
+	.vidioc_subscribe_event = v4l2_ctrl_subscribe_event,
+	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
+};
+
+static const struct v4l2_file_operations rkisp1_stats_fops = {
+	.mmap = vb2_fop_mmap,
+	.unlocked_ioctl = video_ioctl2,
+	.poll = vb2_fop_poll,
+	.open = v4l2_fh_open,
+	.release = vb2_fop_release
+};
+
+static int rkisp1_stats_vb2_queue_setup(struct vb2_queue *vq,
+					unsigned int *num_buffers,
+					unsigned int *num_planes,
+					unsigned int sizes[],
+					struct device *alloc_devs[])
+{
+	*num_planes = 1;
+
+	*num_buffers = clamp_t(u32, *num_buffers, RKISP1_ISP_STATS_REQ_BUFS_MIN,
+			       RKISP1_ISP_STATS_REQ_BUFS_MAX);
+
+	sizes[0] = sizeof(struct rkisp1_stat_buffer);
+
+	return 0;
+}
+
+static void rkisp1_stats_vb2_buf_queue(struct vb2_buffer *vb)
+{
+	struct vb2_v4l2_buffer *vbuf = to_vb2_v4l2_buffer(vb);
+	struct rkisp1_buffer *stats_buf =
+		container_of(vbuf, struct rkisp1_buffer, vb);
+	struct vb2_queue *vq = vb->vb2_queue;
+	struct rkisp1_stats *stats_dev = vq->drv_priv;
+
+
+	spin_lock_irq(&stats_dev->lock);
+	list_add_tail(&stats_buf->queue, &stats_dev->stat);
+	spin_unlock_irq(&stats_dev->lock);
+}
+
+static int rkisp1_stats_vb2_buf_prepare(struct vb2_buffer *vb)
+{
+	if (vb2_plane_size(vb, 0) < sizeof(struct rkisp1_stat_buffer))
+		return -EINVAL;
+
+	vb2_set_plane_payload(vb, 0, sizeof(struct rkisp1_stat_buffer));
+
+	return 0;
+}
+
+static void rkisp1_stats_vb2_stop_streaming(struct vb2_queue *vq)
+{
+	struct rkisp1_stats *stats = vq->drv_priv;
+	struct rkisp1_buffer *buf;
+	unsigned int i;
+
+	spin_lock_irq(&stats->lock);
+	for (i = 0; i < RKISP1_ISP_STATS_REQ_BUFS_MAX; i++) {
+		if (list_empty(&stats->stat))
+			break;
+		buf = list_first_entry(&stats->stat,
+				       struct rkisp1_buffer, queue);
+		list_del(&buf->queue);
+		vb2_buffer_done(&buf->vb.vb2_buf, VB2_BUF_STATE_ERROR);
+	}
+	spin_unlock_irq(&stats->lock);
+}
+
+static const struct vb2_ops rkisp1_stats_vb2_ops = {
+	.queue_setup = rkisp1_stats_vb2_queue_setup,
+	.buf_queue = rkisp1_stats_vb2_buf_queue,
+	.buf_prepare = rkisp1_stats_vb2_buf_prepare,
+	.wait_prepare = vb2_ops_wait_prepare,
+	.wait_finish = vb2_ops_wait_finish,
+	.stop_streaming = rkisp1_stats_vb2_stop_streaming,
+};
+
+static int
+rkisp1_stats_init_vb2_queue(struct vb2_queue *q, struct rkisp1_stats *stats)
+{
+	struct rkisp1_vdev_node *node;
+
+	node = container_of(q, struct rkisp1_vdev_node, buf_queue);
+
+	q->type = V4L2_BUF_TYPE_META_CAPTURE;
+	q->io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF;
+	q->drv_priv = stats;
+	q->ops = &rkisp1_stats_vb2_ops;
+	q->mem_ops = &vb2_vmalloc_memops;
+	q->buf_struct_size = sizeof(struct rkisp1_buffer);
+	q->timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC;
+	q->lock = &node->vlock;
+
+	return vb2_queue_init(q);
+}
+
+static void rkisp1_stats_get_awb_meas_v10(struct rkisp1_stats *stats,
+					  struct rkisp1_stat_buffer *pbuf)
+{
+	/* Protect against concurrent access from ISR? */
+	struct rkisp1_device *rkisp1 = stats->rkisp1;
+	u32 reg_val;
+
+	pbuf->meas_type |= RKISP1_CIF_ISP_STAT_AWB;
+	reg_val = rkisp1_read(rkisp1, RKISP1_CIF_ISP_AWB_WHITE_CNT_V10);
+	pbuf->params.awb.awb_mean[0].cnt =
+				RKISP1_CIF_ISP_AWB_GET_PIXEL_CNT(reg_val);
+	reg_val = rkisp1_read(rkisp1, RKISP1_CIF_ISP_AWB_MEAN_V10);
+
+	pbuf->params.awb.awb_mean[0].mean_cr_or_r =
+				RKISP1_CIF_ISP_AWB_GET_MEAN_CR_R(reg_val);
+	pbuf->params.awb.awb_mean[0].mean_cb_or_b =
+				RKISP1_CIF_ISP_AWB_GET_MEAN_CB_B(reg_val);
+	pbuf->params.awb.awb_mean[0].mean_y_or_g =
+				RKISP1_CIF_ISP_AWB_GET_MEAN_Y_G(reg_val);
+}
+
+static void rkisp1_stats_get_awb_meas_v12(struct rkisp1_stats *stats,
+					  struct rkisp1_stat_buffer *pbuf)
+{
+	/* Protect against concurrent access from ISR? */
+	struct rkisp1_device *rkisp1 = stats->rkisp1;
+	u32 reg_val;
+
+	pbuf->meas_type |= RKISP1_CIF_ISP_STAT_AWB;
+	reg_val = rkisp1_read(rkisp1, RKISP1_CIF_ISP_AWB_WHITE_CNT_V12);
+	pbuf->params.awb.awb_mean[0].cnt =
+				RKISP1_CIF_ISP_AWB_GET_PIXEL_CNT(reg_val);
+	reg_val = rkisp1_read(rkisp1, RKISP1_CIF_ISP_AWB_MEAN_V12);
+
+	pbuf->params.awb.awb_mean[0].mean_cr_or_r =
+				RKISP1_CIF_ISP_AWB_GET_MEAN_CR_R(reg_val);
+	pbuf->params.awb.awb_mean[0].mean_cb_or_b =
+				RKISP1_CIF_ISP_AWB_GET_MEAN_CB_B(reg_val);
+	pbuf->params.awb.awb_mean[0].mean_y_or_g =
+				RKISP1_CIF_ISP_AWB_GET_MEAN_Y_G(reg_val);
+}
+
+static void rkisp1_stats_get_aec_meas_v10(struct rkisp1_stats *stats,
+					  struct rkisp1_stat_buffer *pbuf)
+{
+	struct rkisp1_device *rkisp1 = stats->rkisp1;
+	unsigned int i;
+
+	pbuf->meas_type |= RKISP1_CIF_ISP_STAT_AUTOEXP;
+	for (i = 0; i < RKISP1_CIF_ISP_AE_MEAN_MAX_V10; i++)
+		pbuf->params.ae.exp_mean[i] =
+			(u8)rkisp1_read(rkisp1,
+					RKISP1_CIF_ISP_EXP_MEAN_00_V10 + i * 4);
+}
+
+static void rkisp1_stats_get_aec_meas_v12(struct rkisp1_stats *stats,
+					  struct rkisp1_stat_buffer *pbuf)
+{
+	struct rkisp1_device *rkisp1 = stats->rkisp1;
+	u32 value;
+	int i;
+
+	pbuf->meas_type |= RKISP1_CIF_ISP_STAT_AUTOEXP;
+	for (i = 0; i < RKISP1_CIF_ISP_AE_MEAN_MAX_V12 / 4; i++) {
+		value = rkisp1_read(rkisp1, RKISP1_CIF_ISP_EXP_MEAN_V12 + i * 4);
+		pbuf->params.ae.exp_mean[4 * i + 0] =
+				RKISP1_CIF_ISP_EXP_GET_MEAN_xy0_V12(value);
+		pbuf->params.ae.exp_mean[4 * i + 1] =
+				RKISP1_CIF_ISP_EXP_GET_MEAN_xy1_V12(value);
+		pbuf->params.ae.exp_mean[4 * i + 2] =
+				RKISP1_CIF_ISP_EXP_GET_MEAN_xy2_V12(value);
+		pbuf->params.ae.exp_mean[4 * i + 3] =
+				RKISP1_CIF_ISP_EXP_GET_MEAN_xy3_V12(value);
+	}
+
+	value = rkisp1_read(rkisp1, RKISP1_CIF_ISP_EXP_MEAN_V12 + i * 4);
+	pbuf->params.ae.exp_mean[4 * i + 0] = RKISP1_CIF_ISP_EXP_GET_MEAN_xy0_V12(value);
+}
+
+static void rkisp1_stats_get_afc_meas(struct rkisp1_stats *stats,
+				      struct rkisp1_stat_buffer *pbuf)
+{
+	struct rkisp1_device *rkisp1 = stats->rkisp1;
+	struct rkisp1_cif_isp_af_stat *af;
+
+	pbuf->meas_type |= RKISP1_CIF_ISP_STAT_AFM;
+
+	af = &pbuf->params.af;
+	af->window[0].sum = rkisp1_read(rkisp1, RKISP1_CIF_ISP_AFM_SUM_A);
+	af->window[0].lum = rkisp1_read(rkisp1, RKISP1_CIF_ISP_AFM_LUM_A);
+	af->window[1].sum = rkisp1_read(rkisp1, RKISP1_CIF_ISP_AFM_SUM_B);
+	af->window[1].lum = rkisp1_read(rkisp1, RKISP1_CIF_ISP_AFM_LUM_B);
+	af->window[2].sum = rkisp1_read(rkisp1, RKISP1_CIF_ISP_AFM_SUM_C);
+	af->window[2].lum = rkisp1_read(rkisp1, RKISP1_CIF_ISP_AFM_LUM_C);
+}
+
+static void rkisp1_stats_get_hst_meas_v10(struct rkisp1_stats *stats,
+					  struct rkisp1_stat_buffer *pbuf)
+{
+	struct rkisp1_device *rkisp1 = stats->rkisp1;
+	unsigned int i;
+
+	pbuf->meas_type |= RKISP1_CIF_ISP_STAT_HIST;
+	for (i = 0; i < RKISP1_CIF_ISP_HIST_BIN_N_MAX_V10; i++) {
+		u32 reg_val = rkisp1_read(rkisp1, RKISP1_CIF_ISP_HIST_BIN_0_V10 + i * 4);
+
+		pbuf->params.hist.hist_bins[i] = RKISP1_CIF_ISP_HIST_GET_BIN_V10(reg_val);
+	}
+}
+
+static void rkisp1_stats_get_hst_meas_v12(struct rkisp1_stats *stats,
+					  struct rkisp1_stat_buffer *pbuf)
+{
+	struct rkisp1_device *rkisp1 = stats->rkisp1;
+	u32 value;
+	int i;
+
+	pbuf->meas_type |= RKISP1_CIF_ISP_STAT_HIST;
+	for (i = 0; i < RKISP1_CIF_ISP_HIST_BIN_N_MAX_V12 / 2; i++) {
+		value = rkisp1_read(rkisp1, RKISP1_CIF_ISP_HIST_BIN_V12 + i * 4);
+		pbuf->params.hist.hist_bins[2 * i] =
+					RKISP1_CIF_ISP_HIST_GET_BIN0_V12(value);
+		pbuf->params.hist.hist_bins[2 * i + 1] =
+					RKISP1_CIF_ISP_HIST_GET_BIN1_V12(value);
+	}
+}
+
+static void rkisp1_stats_get_bls_meas(struct rkisp1_stats *stats,
+				      struct rkisp1_stat_buffer *pbuf)
+{
+	struct rkisp1_device *rkisp1 = stats->rkisp1;
+	const struct rkisp1_mbus_info *in_fmt = rkisp1->isp.sink_fmt;
+	struct rkisp1_cif_isp_bls_meas_val *bls_val;
+
+	bls_val = &pbuf->params.ae.bls_val;
+	if (in_fmt->bayer_pat == RKISP1_RAW_BGGR) {
+		bls_val->meas_b =
+			rkisp1_read(rkisp1, RKISP1_CIF_ISP_BLS_A_MEASURED);
+		bls_val->meas_gb =
+			rkisp1_read(rkisp1, RKISP1_CIF_ISP_BLS_B_MEASURED);
+		bls_val->meas_gr =
+			rkisp1_read(rkisp1, RKISP1_CIF_ISP_BLS_C_MEASURED);
+		bls_val->meas_r =
+			rkisp1_read(rkisp1, RKISP1_CIF_ISP_BLS_D_MEASURED);
+	} else if (in_fmt->bayer_pat == RKISP1_RAW_GBRG) {
+		bls_val->meas_gb =
+			rkisp1_read(rkisp1, RKISP1_CIF_ISP_BLS_A_MEASURED);
+		bls_val->meas_b =
+			rkisp1_read(rkisp1, RKISP1_CIF_ISP_BLS_B_MEASURED);
+		bls_val->meas_r =
+			rkisp1_read(rkisp1, RKISP1_CIF_ISP_BLS_C_MEASURED);
+		bls_val->meas_gr =
+			rkisp1_read(rkisp1, RKISP1_CIF_ISP_BLS_D_MEASURED);
+	} else if (in_fmt->bayer_pat == RKISP1_RAW_GRBG) {
+		bls_val->meas_gr =
+			rkisp1_read(rkisp1, RKISP1_CIF_ISP_BLS_A_MEASURED);
+		bls_val->meas_r =
+			rkisp1_read(rkisp1, RKISP1_CIF_ISP_BLS_B_MEASURED);
+		bls_val->meas_b =
+			rkisp1_read(rkisp1, RKISP1_CIF_ISP_BLS_C_MEASURED);
+		bls_val->meas_gb =
+			rkisp1_read(rkisp1, RKISP1_CIF_ISP_BLS_D_MEASURED);
+	} else if (in_fmt->bayer_pat == RKISP1_RAW_RGGB) {
+		bls_val->meas_r =
+			rkisp1_read(rkisp1, RKISP1_CIF_ISP_BLS_A_MEASURED);
+		bls_val->meas_gr =
+			rkisp1_read(rkisp1, RKISP1_CIF_ISP_BLS_B_MEASURED);
+		bls_val->meas_gb =
+			rkisp1_read(rkisp1, RKISP1_CIF_ISP_BLS_C_MEASURED);
+		bls_val->meas_b =
+			rkisp1_read(rkisp1, RKISP1_CIF_ISP_BLS_D_MEASURED);
+	}
+}
+
+static const struct rkisp1_stats_ops rkisp1_v10_stats_ops = {
+	.get_awb_meas = rkisp1_stats_get_awb_meas_v10,
+	.get_aec_meas = rkisp1_stats_get_aec_meas_v10,
+	.get_hst_meas = rkisp1_stats_get_hst_meas_v10,
+};
+
+static struct rkisp1_stats_ops rkisp1_v12_stats_ops = {
+	.get_awb_meas = rkisp1_stats_get_awb_meas_v12,
+	.get_aec_meas = rkisp1_stats_get_aec_meas_v12,
+	.get_hst_meas = rkisp1_stats_get_hst_meas_v12,
+};
+
+static void
+rkisp1_stats_send_measurement(struct rkisp1_stats *stats, u32 isp_ris)
+{
+	struct rkisp1_stat_buffer *cur_stat_buf;
+	struct rkisp1_buffer *cur_buf = NULL;
+	unsigned int frame_sequence = stats->rkisp1->isp.frame_sequence;
+	u64 timestamp = ktime_get_ns();
+
+	/* get one empty buffer */
+	if (!list_empty(&stats->stat)) {
+		cur_buf = list_first_entry(&stats->stat,
+					   struct rkisp1_buffer, queue);
+		list_del(&cur_buf->queue);
+	}
+
+	if (!cur_buf)
+		return;
+
+	cur_stat_buf = (struct rkisp1_stat_buffer *)
+			vb2_plane_vaddr(&cur_buf->vb.vb2_buf, 0);
+	if (isp_ris & RKISP1_CIF_ISP_AWB_DONE)
+		stats->ops->get_awb_meas(stats, cur_stat_buf);
+
+	if (isp_ris & RKISP1_CIF_ISP_AFM_FIN)
+		rkisp1_stats_get_afc_meas(stats, cur_stat_buf);
+
+	if (isp_ris & RKISP1_CIF_ISP_EXP_END) {
+		stats->ops->get_aec_meas(stats, cur_stat_buf);
+		rkisp1_stats_get_bls_meas(stats, cur_stat_buf);
+	}
+
+	if (isp_ris & RKISP1_CIF_ISP_HIST_MEASURE_RDY)
+		stats->ops->get_hst_meas(stats, cur_stat_buf);
+
+	vb2_set_plane_payload(&cur_buf->vb.vb2_buf, 0,
+			      sizeof(struct rkisp1_stat_buffer));
+	cur_buf->vb.sequence = frame_sequence;
+	cur_buf->vb.vb2_buf.timestamp = timestamp;
+	vb2_buffer_done(&cur_buf->vb.vb2_buf, VB2_BUF_STATE_DONE);
+}
+
+void rkisp1_stats_isr(struct rkisp1_stats *stats, u32 isp_ris)
+{
+	struct rkisp1_device *rkisp1 = stats->rkisp1;
+	unsigned int isp_mis_tmp = 0;
+
+	spin_lock(&stats->lock);
+
+	rkisp1_write(rkisp1, RKISP1_CIF_ISP_ICR, RKISP1_STATS_MEAS_MASK);
+
+	isp_mis_tmp = rkisp1_read(rkisp1, RKISP1_CIF_ISP_MIS);
+	if (isp_mis_tmp & RKISP1_STATS_MEAS_MASK)
+		rkisp1->debug.stats_error++;
+
+	if (isp_ris & RKISP1_STATS_MEAS_MASK)
+		rkisp1_stats_send_measurement(stats, isp_ris);
+
+	spin_unlock(&stats->lock);
+}
+
+static void rkisp1_init_stats(struct rkisp1_stats *stats)
+{
+	stats->vdev_fmt.fmt.meta.dataformat =
+		V4L2_META_FMT_RK_ISP1_STAT_3A;
+	stats->vdev_fmt.fmt.meta.buffersize =
+		sizeof(struct rkisp1_stat_buffer);
+
+	if (stats->rkisp1->info->isp_ver == RKISP1_V12)
+		stats->ops = &rkisp1_v12_stats_ops;
+	else
+		stats->ops = &rkisp1_v10_stats_ops;
+}
+
+int rkisp1_stats_register(struct rkisp1_device *rkisp1)
+{
+	struct rkisp1_stats *stats = &rkisp1->stats;
+	struct rkisp1_vdev_node *node = &stats->vnode;
+	struct video_device *vdev = &node->vdev;
+	int ret;
+
+	stats->rkisp1 = rkisp1;
+	mutex_init(&node->vlock);
+	INIT_LIST_HEAD(&stats->stat);
+	spin_lock_init(&stats->lock);
+
+	strscpy(vdev->name, RKISP1_STATS_DEV_NAME, sizeof(vdev->name));
+
+	video_set_drvdata(vdev, stats);
+	vdev->ioctl_ops = &rkisp1_stats_ioctl;
+	vdev->fops = &rkisp1_stats_fops;
+	vdev->release = video_device_release_empty;
+	vdev->lock = &node->vlock;
+	vdev->v4l2_dev = &rkisp1->v4l2_dev;
+	vdev->queue = &node->buf_queue;
+	vdev->device_caps = V4L2_CAP_META_CAPTURE | V4L2_CAP_STREAMING;
+	vdev->vfl_dir =  VFL_DIR_RX;
+	rkisp1_stats_init_vb2_queue(vdev->queue, stats);
+	rkisp1_init_stats(stats);
+	video_set_drvdata(vdev, stats);
+
+	node->pad.flags = MEDIA_PAD_FL_SINK;
+	ret = media_entity_pads_init(&vdev->entity, 1, &node->pad);
+	if (ret)
+		goto error;
+
+	ret = video_register_device(vdev, VFL_TYPE_VIDEO, -1);
+	if (ret) {
+		dev_err(&vdev->dev,
+			"failed to register %s, ret=%d\n", vdev->name, ret);
+		goto error;
+	}
+
+	return 0;
+
+error:
+	media_entity_cleanup(&vdev->entity);
+	mutex_destroy(&node->vlock);
+	stats->rkisp1 = NULL;
+	return ret;
+}
+
+void rkisp1_stats_unregister(struct rkisp1_device *rkisp1)
+{
+	struct rkisp1_stats *stats = &rkisp1->stats;
+	struct rkisp1_vdev_node *node = &stats->vnode;
+	struct video_device *vdev = &node->vdev;
+
+	if (!stats->rkisp1)
+		return;
+
+	vb2_video_unregister_device(vdev);
+	media_entity_cleanup(&vdev->entity);
+	mutex_destroy(&node->vlock);
+}