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(). ... --- arch/m68k/68000/head.S | 241 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 241 insertions(+) create mode 100644 arch/m68k/68000/head.S (limited to 'arch/m68k/68000/head.S') diff --git a/arch/m68k/68000/head.S b/arch/m68k/68000/head.S new file mode 100644 index 000000000..140220662 --- /dev/null +++ b/arch/m68k/68000/head.S @@ -0,0 +1,241 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * head.S - Common startup code for 68000 core based CPU's + * + * 2012.10.21, Luis Alves , Single head.S file for all + * 68000 core based CPU's. Based on the sources from: + * Coldfire by Greg Ungerer + * 68328 by D. Jeff Dionne , + * Kenneth Albanowski , + * The Silver Hammer Group, Ltd. + * + */ + +#include +#include +#include +#include + + +/***************************************************************************** + * UCSIMM and UCDIMM use CONFIG_MEMORY_RESERVE to reserve some RAM + *****************************************************************************/ +#ifdef CONFIG_MEMORY_RESERVE +#define RAMEND (CONFIG_RAMBASE+CONFIG_RAMSIZE)-(CONFIG_MEMORY_RESERVE*0x100000) +#else +#define RAMEND (CONFIG_RAMBASE+CONFIG_RAMSIZE) +#endif +/*****************************************************************************/ + +.global _start +.global _rambase +.global _ramvec +.global _ramstart +.global _ramend + +#if defined(CONFIG_PILOT) || defined(CONFIG_INIT_LCD) +.global bootlogo_bits +#endif + +/* Defining DEBUG_HEAD_CODE, serial port in 68x328 is inited */ +/* #define DEBUG_HEAD_CODE */ +#undef DEBUG_HEAD_CODE + +.data + +/***************************************************************************** + * RAM setup pointers. Used by the kernel to determine RAM location and size. + *****************************************************************************/ + +_rambase: + .long 0 +_ramvec: + .long 0 +_ramstart: + .long 0 +_ramend: + .long 0 + +__HEAD + +/***************************************************************************** + * Entry point, where all begins! + *****************************************************************************/ + +_start: + +/* Pilot need this specific signature at the start of ROM */ +#ifdef CONFIG_PILOT + .byte 0x4e, 0xfa, 0x00, 0x0a /* bra opcode (jmp 10 bytes) */ + .byte 'b', 'o', 'o', 't' + .word 10000 + nop + moveq #0, %d0 + movew %d0, 0xfffff618 /* Watchdog off */ + movel #0x00011f07, 0xfffff114 /* CS A1 Mask */ +#endif /* CONFIG_PILOT */ + + movew #0x2700, %sr /* disable all interrupts */ + +/***************************************************************************** + * Setup PLL and wait for it to settle (in 68x328 cpu's). + * Also, if enabled, init serial port. + *****************************************************************************/ +#if defined(CONFIG_M68328) || \ + defined(CONFIG_M68EZ328) || \ + defined(CONFIG_M68VZ328) + +/* Serial port setup. Should only be needed if debugging this startup code. */ +#ifdef DEBUG_HEAD_CODE + movew #0x0800, 0xfffff906 /* Ignore CTS */ + movew #0x010b, 0xfffff902 /* BAUD to 9600 */ + movew #0xe100, 0xfffff900 /* enable */ +#endif /* DEBUG_HEAD */ + +#ifdef CONFIG_PILOT + movew #0x2410, 0xfffff200 /* PLLCR */ +#else + movew #0x2400, 0xfffff200 /* PLLCR */ +#endif + movew #0x0123, 0xfffff202 /* PLLFSR */ + moveq #0, %d0 + movew #16384, %d0 /* PLL settle wait loop */ +_pll_settle: + subw #1, %d0 + bne _pll_settle +#endif /* CONFIG_M68x328 */ + + +/***************************************************************************** + * If running kernel from ROM some specific initialization has to be done. + * (Assuming that everything is already init'ed when running from RAM) + *****************************************************************************/ +#ifdef CONFIG_ROMKERNEL + +/***************************************************************************** + * Init chip registers (uCsimm specific) + *****************************************************************************/ +#ifdef CONFIG_UCSIMM + moveb #0x00, 0xfffffb0b /* Watchdog off */ + moveb #0x10, 0xfffff000 /* SCR */ + moveb #0x00, 0xfffff40b /* enable chip select */ + moveb #0x00, 0xfffff423 /* enable /DWE */ + moveb #0x08, 0xfffffd0d /* disable hardmap */ + moveb #0x07, 0xfffffd0e /* level 7 interrupt clear */ + movew #0x8600, 0xfffff100 /* FLASH at 0x10c00000 */ + movew #0x018b, 0xfffff110 /* 2Meg, enable, 0ws */ + movew #0x8f00, 0xfffffc00 /* DRAM configuration */ + movew #0x9667, 0xfffffc02 /* DRAM control */ + movew #0x0000, 0xfffff106 /* DRAM at 0x00000000 */ + movew #0x068f, 0xfffff116 /* 8Meg, enable, 0ws */ + moveb #0x40, 0xfffff300 /* IVR */ + movel #0x007FFFFF, %d0 /* IMR */ + movel %d0, 0xfffff304 + moveb 0xfffff42b, %d0 + andb #0xe0, %d0 + moveb %d0, 0xfffff42b +#endif + +/***************************************************************************** + * Init LCD controller. + * (Assuming that LCD controller is already init'ed when running from RAM) + *****************************************************************************/ +#ifdef CONFIG_INIT_LCD +#ifdef CONFIG_PILOT + moveb #0, 0xfffffA27 /* LCKCON */ + movel #_start, 0xfffffA00 /* LSSA */ + moveb #0xa, 0xfffffA05 /* LVPW */ + movew #0x9f, 0xFFFFFa08 /* LXMAX */ + movew #0x9f, 0xFFFFFa0a /* LYMAX */ + moveb #9, 0xfffffa29 /* LBAR */ + moveb #0, 0xfffffa25 /* LPXCD */ + moveb #0x04, 0xFFFFFa20 /* LPICF */ + moveb #0x58, 0xfffffA27 /* LCKCON */ + moveb #0x85, 0xfffff429 /* PFDATA */ + moveb #0xd8, 0xfffffA27 /* LCKCON */ + moveb #0xc5, 0xfffff429 /* PFDATA */ + moveb #0xd5, 0xfffff429 /* PFDATA */ + movel #bootlogo_bits, 0xFFFFFA00 /* LSSA */ + moveb #10, 0xFFFFFA05 /* LVPW */ + movew #160, 0xFFFFFA08 /* LXMAX */ + movew #160, 0xFFFFFA0A /* LYMAX */ +#else /* CONFIG_PILOT */ + movel #bootlogo_bits, 0xfffffA00 /* LSSA */ + moveb #0x28, 0xfffffA05 /* LVPW */ + movew #0x280, 0xFFFFFa08 /* LXMAX */ + movew #0x1df, 0xFFFFFa0a /* LYMAX */ + moveb #0, 0xfffffa29 /* LBAR */ + moveb #0, 0xfffffa25 /* LPXCD */ + moveb #0x08, 0xFFFFFa20 /* LPICF */ + moveb #0x01, 0xFFFFFA21 /* -ve pol */ + moveb #0x81, 0xfffffA27 /* LCKCON */ + movew #0xff00, 0xfffff412 /* LCD pins */ +#endif /* CONFIG_PILOT */ +#endif /* CONFIG_INIT_LCD */ + +/***************************************************************************** + * Kernel is running from FLASH/ROM (XIP) + * Copy init text & data to RAM + *****************************************************************************/ + moveal #_etext, %a0 + moveal #_sdata, %a1 + moveal #__bss_start, %a2 +_copy_initmem: + movel %a0@+, %a1@+ + cmpal %a1, %a2 + bhi _copy_initmem +#endif /* CONFIG_ROMKERNEL */ + +/***************************************************************************** + * Setup basic memory information for kernel + *****************************************************************************/ + movel #CONFIG_VECTORBASE,_ramvec /* set vector base location */ + movel #CONFIG_RAMBASE,_rambase /* set the base of RAM */ + movel #RAMEND, _ramend /* set end ram addr */ + lea __bss_stop,%a1 + movel %a1,_ramstart + +/***************************************************************************** + * If the kernel is in RAM, move romfs to right above bss and + * adjust _ramstart to where romfs ends. + * + * (Do this only if CONFIG_MTD_UCLINUX is true) + *****************************************************************************/ + +#if defined(CONFIG_ROMFS_FS) && defined(CONFIG_RAMKERNEL) && \ + defined(CONFIG_MTD_UCLINUX) + lea __bss_start, %a0 /* get start of bss */ + lea __bss_stop, %a1 /* set up destination */ + movel %a0, %a2 /* copy of bss start */ + + movel 8(%a0), %d0 /* get size of ROMFS */ + addql #8, %d0 /* allow for rounding */ + andl #0xfffffffc, %d0 /* whole words */ + + addl %d0, %a0 /* copy from end */ + addl %d0, %a1 /* copy from end */ + movel %a1, _ramstart /* set start of ram */ +_copy_romfs: + movel -(%a0), -(%a1) /* copy dword */ + cmpl %a0, %a2 /* check if at end */ + bne _copy_romfs +#endif /* CONFIG_ROMFS_FS && CONFIG_RAMKERNEL && CONFIG_MTD_UCLINUX */ + +/***************************************************************************** + * Clear bss region + *****************************************************************************/ + lea __bss_start, %a0 /* get start of bss */ + lea __bss_stop, %a1 /* get end of bss */ +_clear_bss: + movel #0, (%a0)+ /* clear each word */ + cmpl %a0, %a1 /* check if at end */ + bne _clear_bss + +/***************************************************************************** + * Load the current task pointer and stack. + *****************************************************************************/ + lea init_thread_union,%a0 + lea THREAD_SIZE(%a0),%sp + jsr start_kernel /* start Linux kernel */ +_exit: + jmp _exit /* should never get here */ -- cgit v1.2.3