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/pmag-aa-fb.c | 304 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 304 insertions(+) create mode 100644 drivers/video/fbdev/pmag-aa-fb.c (limited to 'drivers/video/fbdev/pmag-aa-fb.c') diff --git a/drivers/video/fbdev/pmag-aa-fb.c b/drivers/video/fbdev/pmag-aa-fb.c new file mode 100644 index 000000000..62c8de99a --- /dev/null +++ b/drivers/video/fbdev/pmag-aa-fb.c @@ -0,0 +1,304 @@ +/* + * linux/drivers/video/pmag-aa-fb.c + * Copyright 2002 Karsten Merker + * + * PMAG-AA TurboChannel framebuffer card support ... derived from + * pmag-ba-fb.c, which is Copyright (C) 1999, 2000, 2001 by + * Michael Engel , Karsten Merker + * and Harald Koerfgen , which itself is derived from + * "HP300 Topcat framebuffer support (derived from macfb of all things) + * Phil Blundell 1998" + * Copyright (c) 2016 Maciej W. Rozycki + * + * This file is subject to the terms and conditions of the GNU General + * Public License. See the file COPYING in the main directory of this + * archive for more details. + * + * 2002-09-28 Karsten Merker + * Version 0.01: First try to get a PMAG-AA running. + * + * 2003-02-24 Thiemo Seufer + * Version 0.02: Major code cleanup. + * + * 2003-09-21 Thiemo Seufer + * Hardware cursor support. + * + * 2016-02-21 Maciej W. Rozycki + * Version 0.03: Rewritten for the new FB and TC APIs. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "bt455.h" +#include "bt431.h" + +/* Version information */ +#define DRIVER_VERSION "0.03" +#define DRIVER_AUTHOR "Karsten Merker " +#define DRIVER_DESCRIPTION "PMAG-AA Framebuffer Driver" + +/* + * Bt455 RAM DAC register base offset (rel. to TC slot base address). + */ +#define PMAG_AA_BT455_OFFSET 0x100000 + +/* + * Bt431 cursor generator offset (rel. to TC slot base address). + */ +#define PMAG_AA_BT431_OFFSET 0x180000 + +/* + * Begin of PMAG-AA framebuffer memory relative to TC slot address, + * resolution is 1280x1024x1 (8 bits deep, but only LSB is used). + */ +#define PMAG_AA_ONBOARD_FBMEM_OFFSET 0x200000 + +struct aafb_par { + void __iomem *mmio; + struct bt455_regs __iomem *bt455; + struct bt431_regs __iomem *bt431; +}; + +static const struct fb_var_screeninfo aafb_defined = { + .xres = 1280, + .yres = 1024, + .xres_virtual = 2048, + .yres_virtual = 1024, + .bits_per_pixel = 8, + .grayscale = 1, + .red.length = 0, + .green.length = 1, + .blue.length = 0, + .activate = FB_ACTIVATE_NOW, + .accel_flags = FB_ACCEL_NONE, + .pixclock = 7645, + .left_margin = 224, + .right_margin = 32, + .upper_margin = 33, + .lower_margin = 3, + .hsync_len = 160, + .vsync_len = 3, + .sync = FB_SYNC_ON_GREEN, + .vmode = FB_VMODE_NONINTERLACED, +}; + +static const struct fb_fix_screeninfo aafb_fix = { + .id = "PMAG-AA", + .smem_len = (2048 * 1024), + .type = FB_TYPE_PACKED_PIXELS, + .visual = FB_VISUAL_MONO10, + .ypanstep = 1, + .ywrapstep = 1, + .line_length = 2048, + .mmio_len = PMAG_AA_ONBOARD_FBMEM_OFFSET - PMAG_AA_BT455_OFFSET, +}; + +static int aafb_cursor(struct fb_info *info, struct fb_cursor *cursor) +{ + struct aafb_par *par = info->par; + + if (cursor->image.height > BT431_CURSOR_SIZE || + cursor->image.width > BT431_CURSOR_SIZE) { + bt431_erase_cursor(par->bt431); + return -EINVAL; + } + + if (!cursor->enable) + bt431_erase_cursor(par->bt431); + + if (cursor->set & FB_CUR_SETPOS) + bt431_position_cursor(par->bt431, + cursor->image.dx, cursor->image.dy); + if (cursor->set & FB_CUR_SETCMAP) { + u8 fg = cursor->image.fg_color ? 0xf : 0x0; + u8 bg = cursor->image.bg_color ? 0xf : 0x0; + + bt455_write_cmap_entry(par->bt455, 8, bg); + bt455_write_cmap_next(par->bt455, bg); + bt455_write_ovly_next(par->bt455, fg); + } + if (cursor->set & (FB_CUR_SETSIZE | FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) + bt431_set_cursor(par->bt431, + cursor->image.data, cursor->mask, cursor->rop, + cursor->image.width, cursor->image.height); + + if (cursor->enable) + bt431_enable_cursor(par->bt431); + + return 0; +} + +/* 0 unblanks, any other blanks. */ + +static int aafb_blank(int blank, struct fb_info *info) +{ + struct aafb_par *par = info->par; + u8 val = blank ? 0x00 : 0x0f; + + bt455_write_cmap_entry(par->bt455, 1, val); + return 0; +} + +static const struct fb_ops aafb_ops = { + .owner = THIS_MODULE, + .fb_blank = aafb_blank, + .fb_fillrect = cfb_fillrect, + .fb_copyarea = cfb_copyarea, + .fb_imageblit = cfb_imageblit, + .fb_cursor = aafb_cursor, +}; + +static int pmagaafb_probe(struct device *dev) +{ + struct tc_dev *tdev = to_tc_dev(dev); + resource_size_t start, len; + struct fb_info *info; + struct aafb_par *par; + int err; + + info = framebuffer_alloc(sizeof(struct aafb_par), dev); + if (!info) + return -ENOMEM; + + par = info->par; + dev_set_drvdata(dev, info); + + info->fbops = &aafb_ops; + info->fix = aafb_fix; + info->var = aafb_defined; + info->flags = FBINFO_DEFAULT; + + /* Request the I/O MEM resource. */ + start = tdev->resource.start; + len = tdev->resource.end - start + 1; + if (!request_mem_region(start, len, dev_name(dev))) { + printk(KERN_ERR "%s: Cannot reserve FB region\n", + dev_name(dev)); + err = -EBUSY; + goto err_alloc; + } + + /* MMIO mapping setup. */ + info->fix.mmio_start = start + PMAG_AA_BT455_OFFSET; + par->mmio = ioremap(info->fix.mmio_start, info->fix.mmio_len); + if (!par->mmio) { + printk(KERN_ERR "%s: Cannot map MMIO\n", dev_name(dev)); + err = -ENOMEM; + goto err_resource; + } + par->bt455 = par->mmio - PMAG_AA_BT455_OFFSET + PMAG_AA_BT455_OFFSET; + par->bt431 = par->mmio - PMAG_AA_BT455_OFFSET + PMAG_AA_BT431_OFFSET; + + /* Frame buffer mapping setup. */ + info->fix.smem_start = start + PMAG_AA_ONBOARD_FBMEM_OFFSET; + info->screen_base = ioremap(info->fix.smem_start, + info->fix.smem_len); + if (!info->screen_base) { + printk(KERN_ERR "%s: Cannot map FB\n", dev_name(dev)); + err = -ENOMEM; + goto err_mmio_map; + } + info->screen_size = info->fix.smem_len; + + /* Init colormap. */ + bt455_write_cmap_entry(par->bt455, 0, 0x0); + bt455_write_cmap_next(par->bt455, 0xf); + + /* Init hardware cursor. */ + bt431_erase_cursor(par->bt431); + bt431_init_cursor(par->bt431); + + err = register_framebuffer(info); + if (err < 0) { + printk(KERN_ERR "%s: Cannot register framebuffer\n", + dev_name(dev)); + goto err_smem_map; + } + + get_device(dev); + + pr_info("fb%d: %s frame buffer device at %s\n", + info->node, info->fix.id, dev_name(dev)); + + return 0; + + +err_smem_map: + iounmap(info->screen_base); + +err_mmio_map: + iounmap(par->mmio); + +err_resource: + release_mem_region(start, len); + +err_alloc: + framebuffer_release(info); + return err; +} + +static int pmagaafb_remove(struct device *dev) +{ + struct tc_dev *tdev = to_tc_dev(dev); + struct fb_info *info = dev_get_drvdata(dev); + struct aafb_par *par = info->par; + resource_size_t start, len; + + put_device(dev); + unregister_framebuffer(info); + iounmap(info->screen_base); + iounmap(par->mmio); + start = tdev->resource.start; + len = tdev->resource.end - start + 1; + release_mem_region(start, len); + framebuffer_release(info); + return 0; +} + +/* + * Initialise the framebuffer. + */ +static const struct tc_device_id pmagaafb_tc_table[] = { + { "DEC ", "PMAG-AA " }, + { } +}; +MODULE_DEVICE_TABLE(tc, pmagaafb_tc_table); + +static struct tc_driver pmagaafb_driver = { + .id_table = pmagaafb_tc_table, + .driver = { + .name = "pmagaafb", + .bus = &tc_bus_type, + .probe = pmagaafb_probe, + .remove = pmagaafb_remove, + }, +}; + +static int __init pmagaafb_init(void) +{ +#ifndef MODULE + if (fb_get_options("pmagaafb", NULL)) + return -ENXIO; +#endif + return tc_register_driver(&pmagaafb_driver); +} + +static void __exit pmagaafb_exit(void) +{ + tc_unregister_driver(&pmagaafb_driver); +} + +module_init(pmagaafb_init); +module_exit(pmagaafb_exit); + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESCRIPTION); +MODULE_LICENSE("GPL"); -- cgit v1.2.3