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, 382 insertions, 0 deletions

diff --git a/drivers/media/platform/renesas/vsp1/vsp1_rpf.c b/drivers/media/platform/renesas/vsp1/vsp1_rpf.c
new file mode 100644
index 000000000..75083cb23
--- /dev/null
+++ b/drivers/media/platform/renesas/vsp1/vsp1_rpf.c
@@ -0,0 +1,382 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * vsp1_rpf.c  --  R-Car VSP1 Read Pixel Formatter
+ *
+ * Copyright (C) 2013-2014 Renesas Electronics Corporation
+ *
+ * Contact: Laurent Pinchart (laurent.pinchart@ideasonboard.com)
+ */
+
+#include <linux/device.h>
+
+#include <media/v4l2-subdev.h>
+
+#include "vsp1.h"
+#include "vsp1_dl.h"
+#include "vsp1_pipe.h"
+#include "vsp1_rwpf.h"
+#include "vsp1_video.h"
+
+#define RPF_MAX_WIDTH				8190
+#define RPF_MAX_HEIGHT				8190
+
+/* Pre extended display list command data structure. */
+struct vsp1_extcmd_auto_fld_body {
+	u32 top_y0;
+	u32 bottom_y0;
+	u32 top_c0;
+	u32 bottom_c0;
+	u32 top_c1;
+	u32 bottom_c1;
+	u32 reserved0;
+	u32 reserved1;
+} __packed;
+
+/* -----------------------------------------------------------------------------
+ * Device Access
+ */
+
+static inline void vsp1_rpf_write(struct vsp1_rwpf *rpf,
+				  struct vsp1_dl_body *dlb, u32 reg, u32 data)
+{
+	vsp1_dl_body_write(dlb, reg + rpf->entity.index * VI6_RPF_OFFSET,
+			       data);
+}
+
+/* -----------------------------------------------------------------------------
+ * V4L2 Subdevice Operations
+ */
+
+static const struct v4l2_subdev_ops rpf_ops = {
+	.pad    = &vsp1_rwpf_pad_ops,
+};
+
+/* -----------------------------------------------------------------------------
+ * VSP1 Entity Operations
+ */
+
+static void rpf_configure_stream(struct vsp1_entity *entity,
+				 struct vsp1_pipeline *pipe,
+				 struct vsp1_dl_list *dl,
+				 struct vsp1_dl_body *dlb)
+{
+	struct vsp1_rwpf *rpf = to_rwpf(&entity->subdev);
+	const struct vsp1_format_info *fmtinfo = rpf->fmtinfo;
+	const struct v4l2_pix_format_mplane *format = &rpf->format;
+	const struct v4l2_mbus_framefmt *source_format;
+	const struct v4l2_mbus_framefmt *sink_format;
+	unsigned int left = 0;
+	unsigned int top = 0;
+	u32 pstride;
+	u32 infmt;
+
+	/* Stride */
+	pstride = format->plane_fmt[0].bytesperline
+		<< VI6_RPF_SRCM_PSTRIDE_Y_SHIFT;
+	if (format->num_planes > 1)
+		pstride |= format->plane_fmt[1].bytesperline
+			<< VI6_RPF_SRCM_PSTRIDE_C_SHIFT;
+
+	/*
+	 * pstride has both STRIDE_Y and STRIDE_C, but multiplying the whole
+	 * of pstride by 2 is conveniently OK here as we are multiplying both
+	 * values.
+	 */
+	if (pipe->interlaced)
+		pstride *= 2;
+
+	vsp1_rpf_write(rpf, dlb, VI6_RPF_SRCM_PSTRIDE, pstride);
+
+	/* Format */
+	sink_format = vsp1_entity_get_pad_format(&rpf->entity,
+						 rpf->entity.config,
+						 RWPF_PAD_SINK);
+	source_format = vsp1_entity_get_pad_format(&rpf->entity,
+						   rpf->entity.config,
+						   RWPF_PAD_SOURCE);
+
+	infmt = VI6_RPF_INFMT_CIPM
+	      | (fmtinfo->hwfmt << VI6_RPF_INFMT_RDFMT_SHIFT);
+
+	if (fmtinfo->swap_yc)
+		infmt |= VI6_RPF_INFMT_SPYCS;
+	if (fmtinfo->swap_uv)
+		infmt |= VI6_RPF_INFMT_SPUVS;
+
+	if (sink_format->code != source_format->code)
+		infmt |= VI6_RPF_INFMT_CSC;
+
+	vsp1_rpf_write(rpf, dlb, VI6_RPF_INFMT, infmt);
+	vsp1_rpf_write(rpf, dlb, VI6_RPF_DSWAP, fmtinfo->swap);
+
+	/* Output location. */
+	if (pipe->brx) {
+		const struct v4l2_rect *compose;
+
+		compose = vsp1_entity_get_pad_selection(pipe->brx,
+							pipe->brx->config,
+							rpf->brx_input,
+							V4L2_SEL_TGT_COMPOSE);
+		left = compose->left;
+		top = compose->top;
+	}
+
+	if (pipe->interlaced)
+		top /= 2;
+
+	vsp1_rpf_write(rpf, dlb, VI6_RPF_LOC,
+		       (left << VI6_RPF_LOC_HCOORD_SHIFT) |
+		       (top << VI6_RPF_LOC_VCOORD_SHIFT));
+
+	/*
+	 * On Gen2 use the alpha channel (extended to 8 bits) when available or
+	 * a fixed alpha value set through the V4L2_CID_ALPHA_COMPONENT control
+	 * otherwise.
+	 *
+	 * The Gen3 RPF has extended alpha capability and can both multiply the
+	 * alpha channel by a fixed global alpha value, and multiply the pixel
+	 * components to convert the input to premultiplied alpha.
+	 *
+	 * As alpha premultiplication is available in the BRx for both Gen2 and
+	 * Gen3 we handle it there and use the Gen3 alpha multiplier for global
+	 * alpha multiplication only. This however prevents conversion to
+	 * premultiplied alpha if no BRx is present in the pipeline. If that use
+	 * case turns out to be useful we will revisit the implementation (for
+	 * Gen3 only).
+	 *
+	 * We enable alpha multiplication on Gen3 using the fixed alpha value
+	 * set through the V4L2_CID_ALPHA_COMPONENT control when the input
+	 * contains an alpha channel. On Gen2 the global alpha is ignored in
+	 * that case.
+	 *
+	 * In all cases, disable color keying.
+	 */
+	vsp1_rpf_write(rpf, dlb, VI6_RPF_ALPH_SEL, VI6_RPF_ALPH_SEL_AEXT_EXT |
+		       (fmtinfo->alpha ? VI6_RPF_ALPH_SEL_ASEL_PACKED
+				       : VI6_RPF_ALPH_SEL_ASEL_FIXED));
+
+	if (entity->vsp1->info->gen == 3) {
+		u32 mult;
+
+		if (fmtinfo->alpha) {
+			/*
+			 * When the input contains an alpha channel enable the
+			 * alpha multiplier. If the input is premultiplied we
+			 * need to multiply both the alpha channel and the pixel
+			 * components by the global alpha value to keep them
+			 * premultiplied. Otherwise multiply the alpha channel
+			 * only.
+			 */
+			bool premultiplied = format->flags
+					   & V4L2_PIX_FMT_FLAG_PREMUL_ALPHA;
+
+			mult = VI6_RPF_MULT_ALPHA_A_MMD_RATIO
+			     | (premultiplied ?
+				VI6_RPF_MULT_ALPHA_P_MMD_RATIO :
+				VI6_RPF_MULT_ALPHA_P_MMD_NONE);
+		} else {
+			/*
+			 * When the input doesn't contain an alpha channel the
+			 * global alpha value is applied in the unpacking unit,
+			 * the alpha multiplier isn't needed and must be
+			 * disabled.
+			 */
+			mult = VI6_RPF_MULT_ALPHA_A_MMD_NONE
+			     | VI6_RPF_MULT_ALPHA_P_MMD_NONE;
+		}
+
+		rpf->mult_alpha = mult;
+	}
+
+	vsp1_rpf_write(rpf, dlb, VI6_RPF_MSK_CTRL, 0);
+	vsp1_rpf_write(rpf, dlb, VI6_RPF_CKEY_CTRL, 0);
+
+}
+
+static void vsp1_rpf_configure_autofld(struct vsp1_rwpf *rpf,
+				       struct vsp1_dl_list *dl)
+{
+	const struct v4l2_pix_format_mplane *format = &rpf->format;
+	struct vsp1_dl_ext_cmd *cmd;
+	struct vsp1_extcmd_auto_fld_body *auto_fld;
+	u32 offset_y, offset_c;
+
+	cmd = vsp1_dl_get_pre_cmd(dl);
+	if (WARN_ONCE(!cmd, "Failed to obtain an autofld cmd"))
+		return;
+
+	/* Re-index our auto_fld to match the current RPF. */
+	auto_fld = cmd->data;
+	auto_fld = &auto_fld[rpf->entity.index];
+
+	auto_fld->top_y0 = rpf->mem.addr[0];
+	auto_fld->top_c0 = rpf->mem.addr[1];
+	auto_fld->top_c1 = rpf->mem.addr[2];
+
+	offset_y = format->plane_fmt[0].bytesperline;
+	offset_c = format->plane_fmt[1].bytesperline;
+
+	auto_fld->bottom_y0 = rpf->mem.addr[0] + offset_y;
+	auto_fld->bottom_c0 = rpf->mem.addr[1] + offset_c;
+	auto_fld->bottom_c1 = rpf->mem.addr[2] + offset_c;
+
+	cmd->flags |= VI6_DL_EXT_AUTOFLD_INT | BIT(16 + rpf->entity.index);
+}
+
+static void rpf_configure_frame(struct vsp1_entity *entity,
+				struct vsp1_pipeline *pipe,
+				struct vsp1_dl_list *dl,
+				struct vsp1_dl_body *dlb)
+{
+	struct vsp1_rwpf *rpf = to_rwpf(&entity->subdev);
+
+	vsp1_rpf_write(rpf, dlb, VI6_RPF_VRTCOL_SET,
+		       rpf->alpha << VI6_RPF_VRTCOL_SET_LAYA_SHIFT);
+	vsp1_rpf_write(rpf, dlb, VI6_RPF_MULT_ALPHA, rpf->mult_alpha |
+		       (rpf->alpha << VI6_RPF_MULT_ALPHA_RATIO_SHIFT));
+
+	vsp1_pipeline_propagate_alpha(pipe, dlb, rpf->alpha);
+}
+
+static void rpf_configure_partition(struct vsp1_entity *entity,
+				    struct vsp1_pipeline *pipe,
+				    struct vsp1_dl_list *dl,
+				    struct vsp1_dl_body *dlb)
+{
+	struct vsp1_rwpf *rpf = to_rwpf(&entity->subdev);
+	struct vsp1_rwpf_memory mem = rpf->mem;
+	struct vsp1_device *vsp1 = rpf->entity.vsp1;
+	const struct vsp1_format_info *fmtinfo = rpf->fmtinfo;
+	const struct v4l2_pix_format_mplane *format = &rpf->format;
+	struct v4l2_rect crop;
+
+	/*
+	 * Source size and crop offsets.
+	 *
+	 * The crop offsets correspond to the location of the crop
+	 * rectangle top left corner in the plane buffer. Only two
+	 * offsets are needed, as planes 2 and 3 always have identical
+	 * strides.
+	 */
+	crop = *vsp1_rwpf_get_crop(rpf, rpf->entity.config);
+
+	/*
+	 * Partition Algorithm Control
+	 *
+	 * The partition algorithm can split this frame into multiple
+	 * slices. We must scale our partition window based on the pipe
+	 * configuration to match the destination partition window.
+	 * To achieve this, we adjust our crop to provide a 'sub-crop'
+	 * matching the expected partition window. Only 'left' and
+	 * 'width' need to be adjusted.
+	 */
+	if (pipe->partitions > 1) {
+		crop.width = pipe->partition->rpf.width;
+		crop.left += pipe->partition->rpf.left;
+	}
+
+	if (pipe->interlaced) {
+		crop.height = round_down(crop.height / 2, fmtinfo->vsub);
+		crop.top = round_down(crop.top / 2, fmtinfo->vsub);
+	}
+
+	vsp1_rpf_write(rpf, dlb, VI6_RPF_SRC_BSIZE,
+		       (crop.width << VI6_RPF_SRC_BSIZE_BHSIZE_SHIFT) |
+		       (crop.height << VI6_RPF_SRC_BSIZE_BVSIZE_SHIFT));
+	vsp1_rpf_write(rpf, dlb, VI6_RPF_SRC_ESIZE,
+		       (crop.width << VI6_RPF_SRC_ESIZE_EHSIZE_SHIFT) |
+		       (crop.height << VI6_RPF_SRC_ESIZE_EVSIZE_SHIFT));
+
+	mem.addr[0] += crop.top * format->plane_fmt[0].bytesperline
+		     + crop.left * fmtinfo->bpp[0] / 8;
+
+	if (format->num_planes > 1) {
+		unsigned int bpl = format->plane_fmt[1].bytesperline;
+		unsigned int offset;
+
+		offset = crop.top / fmtinfo->vsub * bpl
+		       + crop.left / fmtinfo->hsub * fmtinfo->bpp[1] / 8;
+		mem.addr[1] += offset;
+		mem.addr[2] += offset;
+	}
+
+	/*
+	 * On Gen3 hardware the SPUVS bit has no effect on 3-planar
+	 * formats. Swap the U and V planes manually in that case.
+	 */
+	if (vsp1->info->gen == 3 && format->num_planes == 3 &&
+	    fmtinfo->swap_uv)
+		swap(mem.addr[1], mem.addr[2]);
+
+	/*
+	 * Interlaced pipelines will use the extended pre-cmd to process
+	 * SRCM_ADDR_{Y,C0,C1}.
+	 */
+	if (pipe->interlaced) {
+		vsp1_rpf_configure_autofld(rpf, dl);
+	} else {
+		vsp1_rpf_write(rpf, dlb, VI6_RPF_SRCM_ADDR_Y, mem.addr[0]);
+		vsp1_rpf_write(rpf, dlb, VI6_RPF_SRCM_ADDR_C0, mem.addr[1]);
+		vsp1_rpf_write(rpf, dlb, VI6_RPF_SRCM_ADDR_C1, mem.addr[2]);
+	}
+}
+
+static void rpf_partition(struct vsp1_entity *entity,
+			  struct vsp1_pipeline *pipe,
+			  struct vsp1_partition *partition,
+			  unsigned int partition_idx,
+			  struct vsp1_partition_window *window)
+{
+	partition->rpf = *window;
+}
+
+static const struct vsp1_entity_operations rpf_entity_ops = {
+	.configure_stream = rpf_configure_stream,
+	.configure_frame = rpf_configure_frame,
+	.configure_partition = rpf_configure_partition,
+	.partition = rpf_partition,
+};
+
+/* -----------------------------------------------------------------------------
+ * Initialization and Cleanup
+ */
+
+struct vsp1_rwpf *vsp1_rpf_create(struct vsp1_device *vsp1, unsigned int index)
+{
+	struct vsp1_rwpf *rpf;
+	char name[6];
+	int ret;
+
+	rpf = devm_kzalloc(vsp1->dev, sizeof(*rpf), GFP_KERNEL);
+	if (rpf == NULL)
+		return ERR_PTR(-ENOMEM);
+
+	rpf->max_width = RPF_MAX_WIDTH;
+	rpf->max_height = RPF_MAX_HEIGHT;
+
+	rpf->entity.ops = &rpf_entity_ops;
+	rpf->entity.type = VSP1_ENTITY_RPF;
+	rpf->entity.index = index;
+
+	sprintf(name, "rpf.%u", index);
+	ret = vsp1_entity_init(vsp1, &rpf->entity, name, 2, &rpf_ops,
+			       MEDIA_ENT_F_PROC_VIDEO_PIXEL_FORMATTER);
+	if (ret < 0)
+		return ERR_PTR(ret);
+
+	/* Initialize the control handler. */
+	ret = vsp1_rwpf_init_ctrls(rpf, 0);
+	if (ret < 0) {
+		dev_err(vsp1->dev, "rpf%u: failed to initialize controls\n",
+			index);
+		goto error;
+	}
+
+	v4l2_ctrl_handler_setup(&rpf->ctrls);
+
+	return rpf;
+
+error:
+	vsp1_entity_destroy(&rpf->entity);
+	return ERR_PTR(ret);
+}