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/video/fbdev/wmt_ge_rops.c | 174 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 174 insertions(+) create mode 100644 drivers/video/fbdev/wmt_ge_rops.c (limited to 'drivers/video/fbdev/wmt_ge_rops.c') diff --git a/drivers/video/fbdev/wmt_ge_rops.c b/drivers/video/fbdev/wmt_ge_rops.c new file mode 100644 index 000000000..42255d27a --- /dev/null +++ b/drivers/video/fbdev/wmt_ge_rops.c @@ -0,0 +1,174 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * linux/drivers/video/wmt_ge_rops.c + * + * Accelerators for raster operations using WonderMedia Graphics Engine + * + * Copyright (C) 2010 Alexey Charkov + */ + +#include +#include +#include +#include "core/fb_draw.h" +#include "wmt_ge_rops.h" + +#define GE_COMMAND_OFF 0x00 +#define GE_DEPTH_OFF 0x04 +#define GE_HIGHCOLOR_OFF 0x08 +#define GE_ROPCODE_OFF 0x14 +#define GE_FIRE_OFF 0x18 +#define GE_SRCBASE_OFF 0x20 +#define GE_SRCDISPW_OFF 0x24 +#define GE_SRCDISPH_OFF 0x28 +#define GE_SRCAREAX_OFF 0x2c +#define GE_SRCAREAY_OFF 0x30 +#define GE_SRCAREAW_OFF 0x34 +#define GE_SRCAREAH_OFF 0x38 +#define GE_DESTBASE_OFF 0x3c +#define GE_DESTDISPW_OFF 0x40 +#define GE_DESTDISPH_OFF 0x44 +#define GE_DESTAREAX_OFF 0x48 +#define GE_DESTAREAY_OFF 0x4c +#define GE_DESTAREAW_OFF 0x50 +#define GE_DESTAREAH_OFF 0x54 +#define GE_PAT0C_OFF 0x88 /* Pattern 0 color */ +#define GE_ENABLE_OFF 0xec +#define GE_INTEN_OFF 0xf0 +#define GE_STATUS_OFF 0xf8 + +static void __iomem *regbase; + +void wmt_ge_fillrect(struct fb_info *p, const struct fb_fillrect *rect) +{ + unsigned long fg, pat; + + if (p->state != FBINFO_STATE_RUNNING) + return; + + if (p->fix.visual == FB_VISUAL_TRUECOLOR || + p->fix.visual == FB_VISUAL_DIRECTCOLOR) + fg = ((u32 *) (p->pseudo_palette))[rect->color]; + else + fg = rect->color; + + pat = pixel_to_pat(p->var.bits_per_pixel, fg); + + if (p->fbops->fb_sync) + p->fbops->fb_sync(p); + + writel(p->var.bits_per_pixel == 32 ? 3 : + (p->var.bits_per_pixel == 8 ? 0 : 1), regbase + GE_DEPTH_OFF); + writel(p->var.bits_per_pixel == 15 ? 1 : 0, regbase + GE_HIGHCOLOR_OFF); + writel(p->fix.smem_start, regbase + GE_DESTBASE_OFF); + writel(p->var.xres_virtual - 1, regbase + GE_DESTDISPW_OFF); + writel(p->var.yres_virtual - 1, regbase + GE_DESTDISPH_OFF); + writel(rect->dx, regbase + GE_DESTAREAX_OFF); + writel(rect->dy, regbase + GE_DESTAREAY_OFF); + writel(rect->width - 1, regbase + GE_DESTAREAW_OFF); + writel(rect->height - 1, regbase + GE_DESTAREAH_OFF); + + writel(pat, regbase + GE_PAT0C_OFF); + writel(1, regbase + GE_COMMAND_OFF); + writel(rect->rop == ROP_XOR ? 0x5a : 0xf0, regbase + GE_ROPCODE_OFF); + writel(1, regbase + GE_FIRE_OFF); +} +EXPORT_SYMBOL_GPL(wmt_ge_fillrect); + +void wmt_ge_copyarea(struct fb_info *p, const struct fb_copyarea *area) +{ + if (p->state != FBINFO_STATE_RUNNING) + return; + + if (p->fbops->fb_sync) + p->fbops->fb_sync(p); + + writel(p->var.bits_per_pixel > 16 ? 3 : + (p->var.bits_per_pixel > 8 ? 1 : 0), regbase + GE_DEPTH_OFF); + + writel(p->fix.smem_start, regbase + GE_SRCBASE_OFF); + writel(p->var.xres_virtual - 1, regbase + GE_SRCDISPW_OFF); + writel(p->var.yres_virtual - 1, regbase + GE_SRCDISPH_OFF); + writel(area->sx, regbase + GE_SRCAREAX_OFF); + writel(area->sy, regbase + GE_SRCAREAY_OFF); + writel(area->width - 1, regbase + GE_SRCAREAW_OFF); + writel(area->height - 1, regbase + GE_SRCAREAH_OFF); + + writel(p->fix.smem_start, regbase + GE_DESTBASE_OFF); + writel(p->var.xres_virtual - 1, regbase + GE_DESTDISPW_OFF); + writel(p->var.yres_virtual - 1, regbase + GE_DESTDISPH_OFF); + writel(area->dx, regbase + GE_DESTAREAX_OFF); + writel(area->dy, regbase + GE_DESTAREAY_OFF); + writel(area->width - 1, regbase + GE_DESTAREAW_OFF); + writel(area->height - 1, regbase + GE_DESTAREAH_OFF); + + writel(0xcc, regbase + GE_ROPCODE_OFF); + writel(1, regbase + GE_COMMAND_OFF); + writel(1, regbase + GE_FIRE_OFF); +} +EXPORT_SYMBOL_GPL(wmt_ge_copyarea); + +int wmt_ge_sync(struct fb_info *p) +{ + int loops = 5000000; + while ((readl(regbase + GE_STATUS_OFF) & 4) && --loops) + cpu_relax(); + return loops > 0 ? 0 : -EBUSY; +} +EXPORT_SYMBOL_GPL(wmt_ge_sync); + +static int wmt_ge_rops_probe(struct platform_device *pdev) +{ + struct resource *res; + + res = platform_get_resource(pdev, IORESOURCE_MEM, 0); + if (res == NULL) { + dev_err(&pdev->dev, "no I/O memory resource defined\n"); + return -ENODEV; + } + + /* Only one ROP engine is presently supported. */ + if (unlikely(regbase)) { + WARN_ON(1); + return -EBUSY; + } + + regbase = ioremap(res->start, resource_size(res)); + if (regbase == NULL) { + dev_err(&pdev->dev, "failed to map I/O memory\n"); + return -EBUSY; + } + + writel(1, regbase + GE_ENABLE_OFF); + printk(KERN_INFO "Enabled support for WMT GE raster acceleration\n"); + + return 0; +} + +static int wmt_ge_rops_remove(struct platform_device *pdev) +{ + iounmap(regbase); + return 0; +} + +static const struct of_device_id wmt_dt_ids[] = { + { .compatible = "wm,prizm-ge-rops", }, + { /* sentinel */ } +}; + +static struct platform_driver wmt_ge_rops_driver = { + .probe = wmt_ge_rops_probe, + .remove = wmt_ge_rops_remove, + .driver = { + .name = "wmt_ge_rops", + .of_match_table = wmt_dt_ids, + }, +}; + +module_platform_driver(wmt_ge_rops_driver); + +MODULE_AUTHOR("Alexey Charkov "); +MODULE_DESCRIPTION("Accelerators for raster operations using " + "WonderMedia Graphics Engine"); +MODULE_LICENSE("GPL v2"); +MODULE_DEVICE_TABLE(of, wmt_dt_ids); -- cgit v1.2.3