From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 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(). ... --- drivers/media/platform/chips-media/imx-vdoa.c | 352 ++++++++++++++++++++++++++ 1 file changed, 352 insertions(+) create mode 100644 drivers/media/platform/chips-media/imx-vdoa.c (limited to 'drivers/media/platform/chips-media/imx-vdoa.c') diff --git a/drivers/media/platform/chips-media/imx-vdoa.c b/drivers/media/platform/chips-media/imx-vdoa.c new file mode 100644 index 000000000..c70871bae --- /dev/null +++ b/drivers/media/platform/chips-media/imx-vdoa.c @@ -0,0 +1,352 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * i.MX6 Video Data Order Adapter (VDOA) + * + * Copyright (C) 2014 Philipp Zabel + * Copyright (C) 2016 Pengutronix, Michael Tretter + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "imx-vdoa.h" + +#define VDOA_NAME "imx-vdoa" + +#define VDOAC 0x00 +#define VDOASRR 0x04 +#define VDOAIE 0x08 +#define VDOAIST 0x0c +#define VDOAFP 0x10 +#define VDOAIEBA00 0x14 +#define VDOAIEBA01 0x18 +#define VDOAIEBA02 0x1c +#define VDOAIEBA10 0x20 +#define VDOAIEBA11 0x24 +#define VDOAIEBA12 0x28 +#define VDOASL 0x2c +#define VDOAIUBO 0x30 +#define VDOAVEBA0 0x34 +#define VDOAVEBA1 0x38 +#define VDOAVEBA2 0x3c +#define VDOAVUBO 0x40 +#define VDOASR 0x44 + +#define VDOAC_ISEL BIT(6) +#define VDOAC_PFS BIT(5) +#define VDOAC_SO BIT(4) +#define VDOAC_SYNC BIT(3) +#define VDOAC_NF BIT(2) +#define VDOAC_BNDM_MASK 0x3 +#define VDOAC_BAND_HEIGHT_8 0x0 +#define VDOAC_BAND_HEIGHT_16 0x1 +#define VDOAC_BAND_HEIGHT_32 0x2 + +#define VDOASRR_START BIT(1) +#define VDOASRR_SWRST BIT(0) + +#define VDOAIE_EITERR BIT(1) +#define VDOAIE_EIEOT BIT(0) + +#define VDOAIST_TERR BIT(1) +#define VDOAIST_EOT BIT(0) + +#define VDOAFP_FH_MASK (0x1fff << 16) +#define VDOAFP_FW_MASK (0x3fff) + +#define VDOASL_VSLY_MASK (0x3fff << 16) +#define VDOASL_ISLY_MASK (0x7fff) + +#define VDOASR_ERRW BIT(4) +#define VDOASR_EOB BIT(3) +#define VDOASR_CURRENT_FRAME (0x3 << 1) +#define VDOASR_CURRENT_BUFFER BIT(1) + +enum { + V4L2_M2M_SRC = 0, + V4L2_M2M_DST = 1, +}; + +struct vdoa_data { + struct vdoa_ctx *curr_ctx; + struct device *dev; + struct clk *vdoa_clk; + void __iomem *regs; +}; + +struct vdoa_q_data { + unsigned int width; + unsigned int height; + unsigned int bytesperline; + unsigned int sizeimage; + u32 pixelformat; +}; + +struct vdoa_ctx { + struct vdoa_data *vdoa; + struct completion completion; + struct vdoa_q_data q_data[2]; + unsigned int submitted_job; + unsigned int completed_job; +}; + +static irqreturn_t vdoa_irq_handler(int irq, void *data) +{ + struct vdoa_data *vdoa = data; + struct vdoa_ctx *curr_ctx; + u32 val; + + /* Disable interrupts */ + writel(0, vdoa->regs + VDOAIE); + + curr_ctx = vdoa->curr_ctx; + if (!curr_ctx) { + dev_warn(vdoa->dev, + "Instance released before the end of transaction\n"); + return IRQ_HANDLED; + } + + val = readl(vdoa->regs + VDOAIST); + writel(val, vdoa->regs + VDOAIST); + if (val & VDOAIST_TERR) { + val = readl(vdoa->regs + VDOASR) & VDOASR_ERRW; + dev_err(vdoa->dev, "AXI %s error\n", val ? "write" : "read"); + } else if (!(val & VDOAIST_EOT)) { + dev_warn(vdoa->dev, "Spurious interrupt\n"); + } + curr_ctx->completed_job++; + complete(&curr_ctx->completion); + + return IRQ_HANDLED; +} + +int vdoa_wait_for_completion(struct vdoa_ctx *ctx) +{ + struct vdoa_data *vdoa = ctx->vdoa; + + if (ctx->submitted_job == ctx->completed_job) + return 0; + + if (!wait_for_completion_timeout(&ctx->completion, + msecs_to_jiffies(300))) { + dev_err(vdoa->dev, + "Timeout waiting for transfer result\n"); + return -ETIMEDOUT; + } + + return 0; +} +EXPORT_SYMBOL(vdoa_wait_for_completion); + +void vdoa_device_run(struct vdoa_ctx *ctx, dma_addr_t dst, dma_addr_t src) +{ + struct vdoa_q_data *src_q_data, *dst_q_data; + struct vdoa_data *vdoa = ctx->vdoa; + u32 val; + + if (vdoa->curr_ctx) + vdoa_wait_for_completion(vdoa->curr_ctx); + + vdoa->curr_ctx = ctx; + + reinit_completion(&ctx->completion); + ctx->submitted_job++; + + src_q_data = &ctx->q_data[V4L2_M2M_SRC]; + dst_q_data = &ctx->q_data[V4L2_M2M_DST]; + + /* Progressive, no sync, 1 frame per run */ + if (dst_q_data->pixelformat == V4L2_PIX_FMT_YUYV) + val = VDOAC_PFS; + else + val = 0; + writel(val, vdoa->regs + VDOAC); + + writel(dst_q_data->height << 16 | dst_q_data->width, + vdoa->regs + VDOAFP); + + val = dst; + writel(val, vdoa->regs + VDOAIEBA00); + + writel(src_q_data->bytesperline << 16 | dst_q_data->bytesperline, + vdoa->regs + VDOASL); + + if (dst_q_data->pixelformat == V4L2_PIX_FMT_NV12 || + dst_q_data->pixelformat == V4L2_PIX_FMT_NV21) + val = dst_q_data->bytesperline * dst_q_data->height; + else + val = 0; + writel(val, vdoa->regs + VDOAIUBO); + + val = src; + writel(val, vdoa->regs + VDOAVEBA0); + val = round_up(src_q_data->bytesperline * src_q_data->height, 4096); + writel(val, vdoa->regs + VDOAVUBO); + + /* Enable interrupts and start transfer */ + writel(VDOAIE_EITERR | VDOAIE_EIEOT, vdoa->regs + VDOAIE); + writel(VDOASRR_START, vdoa->regs + VDOASRR); +} +EXPORT_SYMBOL(vdoa_device_run); + +struct vdoa_ctx *vdoa_context_create(struct vdoa_data *vdoa) +{ + struct vdoa_ctx *ctx; + int err; + + ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); + if (!ctx) + return NULL; + + err = clk_prepare_enable(vdoa->vdoa_clk); + if (err) { + kfree(ctx); + return NULL; + } + + init_completion(&ctx->completion); + ctx->vdoa = vdoa; + + return ctx; +} +EXPORT_SYMBOL(vdoa_context_create); + +void vdoa_context_destroy(struct vdoa_ctx *ctx) +{ + struct vdoa_data *vdoa = ctx->vdoa; + + if (vdoa->curr_ctx == ctx) { + vdoa_wait_for_completion(vdoa->curr_ctx); + vdoa->curr_ctx = NULL; + } + + clk_disable_unprepare(vdoa->vdoa_clk); + kfree(ctx); +} +EXPORT_SYMBOL(vdoa_context_destroy); + +int vdoa_context_configure(struct vdoa_ctx *ctx, + unsigned int width, unsigned int height, + u32 pixelformat) +{ + struct vdoa_q_data *src_q_data; + struct vdoa_q_data *dst_q_data; + + if (width < 16 || width > 8192 || width % 16 != 0 || + height < 16 || height > 4096 || height % 16 != 0) + return -EINVAL; + + if (pixelformat != V4L2_PIX_FMT_YUYV && + pixelformat != V4L2_PIX_FMT_NV12) + return -EINVAL; + + /* If no context is passed, only check if the format is valid */ + if (!ctx) + return 0; + + src_q_data = &ctx->q_data[V4L2_M2M_SRC]; + dst_q_data = &ctx->q_data[V4L2_M2M_DST]; + + src_q_data->width = width; + src_q_data->height = height; + src_q_data->bytesperline = width; + src_q_data->sizeimage = + round_up(src_q_data->bytesperline * height, 4096) + + src_q_data->bytesperline * height / 2; + + dst_q_data->width = width; + dst_q_data->height = height; + dst_q_data->pixelformat = pixelformat; + switch (pixelformat) { + case V4L2_PIX_FMT_YUYV: + dst_q_data->bytesperline = width * 2; + dst_q_data->sizeimage = dst_q_data->bytesperline * height; + break; + case V4L2_PIX_FMT_NV12: + default: + dst_q_data->bytesperline = width; + dst_q_data->sizeimage = + dst_q_data->bytesperline * height * 3 / 2; + break; + } + + return 0; +} +EXPORT_SYMBOL(vdoa_context_configure); + +static int vdoa_probe(struct platform_device *pdev) +{ + struct vdoa_data *vdoa; + int ret; + + ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (ret) { + dev_err(&pdev->dev, "DMA enable failed\n"); + return ret; + } + + vdoa = devm_kzalloc(&pdev->dev, sizeof(*vdoa), GFP_KERNEL); + if (!vdoa) + return -ENOMEM; + + vdoa->dev = &pdev->dev; + + vdoa->vdoa_clk = devm_clk_get(vdoa->dev, NULL); + if (IS_ERR(vdoa->vdoa_clk)) { + dev_err(vdoa->dev, "Failed to get clock\n"); + return PTR_ERR(vdoa->vdoa_clk); + } + + vdoa->regs = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(vdoa->regs)) + return PTR_ERR(vdoa->regs); + + ret = platform_get_irq(pdev, 0); + if (ret < 0) + return ret; + ret = devm_request_threaded_irq(&pdev->dev, ret, NULL, + vdoa_irq_handler, IRQF_ONESHOT, + "vdoa", vdoa); + if (ret < 0) { + dev_err(vdoa->dev, "Failed to get irq\n"); + return ret; + } + + platform_set_drvdata(pdev, vdoa); + + return 0; +} + +static int vdoa_remove(struct platform_device *pdev) +{ + return 0; +} + +static const struct of_device_id vdoa_dt_ids[] = { + { .compatible = "fsl,imx6q-vdoa" }, + {} +}; +MODULE_DEVICE_TABLE(of, vdoa_dt_ids); + +static struct platform_driver vdoa_driver = { + .probe = vdoa_probe, + .remove = vdoa_remove, + .driver = { + .name = VDOA_NAME, + .of_match_table = vdoa_dt_ids, + }, +}; + +module_platform_driver(vdoa_driver); + +MODULE_DESCRIPTION("Video Data Order Adapter"); +MODULE_AUTHOR("Philipp Zabel "); +MODULE_ALIAS("platform:imx-vdoa"); +MODULE_LICENSE("GPL"); -- cgit v1.2.3