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/ifpsp060/iskeleton.S | 347 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 347 insertions(+) create mode 100644 arch/m68k/ifpsp060/iskeleton.S (limited to 'arch/m68k/ifpsp060/iskeleton.S') diff --git a/arch/m68k/ifpsp060/iskeleton.S b/arch/m68k/ifpsp060/iskeleton.S new file mode 100644 index 000000000..91a9c65fe --- /dev/null +++ b/arch/m68k/ifpsp060/iskeleton.S @@ -0,0 +1,347 @@ +|~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +|MOTOROLA MICROPROCESSOR & MEMORY TECHNOLOGY GROUP +|M68000 Hi-Performance Microprocessor Division +|M68060 Software Package +|Production Release P1.00 -- October 10, 1994 +| +|M68060 Software Package Copyright © 1993, 1994 Motorola Inc. All rights reserved. +| +|THE SOFTWARE is provided on an "AS IS" basis and without warranty. +|To the maximum extent permitted by applicable law, +|MOTOROLA DISCLAIMS ALL WARRANTIES WHETHER EXPRESS OR IMPLIED, +|INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE +|and any warranty against infringement with regard to the SOFTWARE +|(INCLUDING ANY MODIFIED VERSIONS THEREOF) and any accompanying written materials. +| +|To the maximum extent permitted by applicable law, +|IN NO EVENT SHALL MOTOROLA BE LIABLE FOR ANY DAMAGES WHATSOEVER +|(INCLUDING WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, +|BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, OR OTHER PECUNIARY LOSS) +|ARISING OF THE USE OR INABILITY TO USE THE SOFTWARE. +|Motorola assumes no responsibility for the maintenance and support of the SOFTWARE. +| +|You are hereby granted a copyright license to use, modify, and distribute the SOFTWARE +|so long as this entire notice is retained without alteration in any modified and/or +|redistributed versions, and that such modified versions are clearly identified as such. +|No licenses are granted by implication, estoppel or otherwise under any patents +|or trademarks of Motorola, Inc. +|~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ +| iskeleton.s +| +| This file contains: +| (1) example "Call-out"s +| (2) example package entry code +| (3) example "Call-out" table +| + +#include +#include +#include + + +|################################ +| (1) EXAMPLE CALL-OUTS # +| # +| _060_isp_done() # +| _060_real_chk() # +| _060_real_divbyzero() # +| # +| _060_real_cas() # +| _060_real_cas2() # +| _060_real_lock_page() # +| _060_real_unlock_page() # +|################################ + +| +| _060_isp_done(): +| +| This is and example main exit point for the Unimplemented Integer +| Instruction exception handler. For a normal exit, the +| _isp_unimp() branches to here so that the operating system +| can do any clean-up desired. The stack frame is the +| Unimplemented Integer Instruction stack frame with +| the PC pointing to the instruction following the instruction +| just emulated. +| To simply continue execution at the next instruction, just +| do an "rte". +| +| Linux/68k: If returning to user space, check for needed reselections. + + .global _060_isp_done +_060_isp_done: + btst #0x5,%sp@ | supervisor bit set in saved SR? + beq .Lnotkern + rte +.Lnotkern: + SAVE_ALL_INT + GET_CURRENT(%d0) + | deliver signals, reschedule etc.. + jra ret_from_exception + +| +| _060_real_chk(): +| +| This is an alternate exit point for the Unimplemented Integer +| Instruction exception handler. If the instruction was a "chk2" +| and the operand was out of bounds, then _isp_unimp() creates +| a CHK exception stack frame from the Unimplemented Integer Instrcution +| stack frame and branches to this routine. +| +| Linux/68k: commented out test for tracing + + .global _060_real_chk +_060_real_chk: +| tst.b (%sp) | is tracing enabled? +| bpls real_chk_end | no + +| +| CHK FRAME TRACE FRAME +| ***************** ***************** +| * Current PC * * Current PC * +| ***************** ***************** +| * 0x2 * 0x018 * * 0x2 * 0x024 * +| ***************** ***************** +| * Next * * Next * +| * PC * * PC * +| ***************** ***************** +| * SR * * SR * +| ***************** ***************** +| +| move.b #0x24,0x7(%sp) | set trace vecno +| bral _060_real_trace + +real_chk_end: + bral trap | jump to trap handler + +| +| _060_real_divbyzero: +| +| This is an alternate exit point for the Unimplemented Integer +| Instruction exception handler isp_unimp(). If the instruction is a 64-bit +| integer divide where the source operand is a zero, then the _isp_unimp() +| creates a Divide-by-zero exception stack frame from the Unimplemented +| Integer Instruction stack frame and branches to this routine. +| +| Remember that a trace exception may be pending. The code below performs +| no action associated with the "chk" exception. If tracing is enabled, +| then it create a Trace exception stack frame from the "chk" exception +| stack frame and branches to the _real_trace() entry point. +| +| Linux/68k: commented out test for tracing + + .global _060_real_divbyzero +_060_real_divbyzero: +| tst.b (%sp) | is tracing enabled? +| bpls real_divbyzero_end | no + +| +| DIVBYZERO FRAME TRACE FRAME +| ***************** ***************** +| * Current PC * * Current PC * +| ***************** ***************** +| * 0x2 * 0x014 * * 0x2 * 0x024 * +| ***************** ***************** +| * Next * * Next * +| * PC * * PC * +| ***************** ***************** +| * SR * * SR * +| ***************** ***************** +| +| move.b #0x24,0x7(%sp) | set trace vecno +| bral _060_real_trace + +real_divbyzero_end: + bral trap | jump to trap handler + +|########################## + +| +| _060_real_cas(): +| +| Entry point for the selected cas emulation code implementation. +| If the implementation provided by the 68060ISP is sufficient, +| then this routine simply re-enters the package through _isp_cas. +| + .global _060_real_cas +_060_real_cas: + bral _I_CALL_TOP+0x80+0x08 + +| +| _060_real_cas2(): +| +| Entry point for the selected cas2 emulation code implementation. +| If the implementation provided by the 68060ISP is sufficient, +| then this routine simply re-enters the package through _isp_cas2. +| + .global _060_real_cas2 +_060_real_cas2: + bral _I_CALL_TOP+0x80+0x10 + +| +| _060_lock_page(): +| +| Entry point for the operating system`s routine to "lock" a page +| from being paged out. This routine is needed by the cas/cas2 +| algorithms so that no page faults occur within the "core" code +| region. Note: the routine must lock two pages if the operand +| spans two pages. +| NOTE: THE ROUTINE SHOULD RETURN AN FSLW VALUE IN D0 ON FAILURE +| SO THAT THE 060SP CAN CREATE A PROPER ACCESS ERROR FRAME. +| Arguments: +| a0 = operand address +| d0 = `xxxxxxff -> supervisor; `xxxxxx00 -> user +| d1 = `xxxxxxff -> longword; `xxxxxx00 -> word +| Expected outputs: +| d0 = 0 -> success; non-zero -> failure +| +| Linux/m68k: Make sure the page is properly paged in, so we use +| plpaw and handle any exception here. The kernel must not be +| preempted until _060_unlock_page(), so that the page stays mapped. +| + .global _060_real_lock_page +_060_real_lock_page: + move.l %d2,-(%sp) + | load sfc/dfc + tst.b %d0 + jne 1f + moveq #1,%d0 + jra 2f +1: moveq #5,%d0 +2: movec.l %dfc,%d2 + movec.l %d0,%dfc + movec.l %d0,%sfc + + clr.l %d0 + | prefetch address + .chip 68060 + move.l %a0,%a1 +1: plpaw (%a1) + addq.w #1,%a0 + tst.b %d1 + jeq 2f + addq.w #2,%a0 +2: plpaw (%a0) +3: .chip 68k + + | restore sfc/dfc + movec.l %d2,%dfc + movec.l %d2,%sfc + move.l (%sp)+,%d2 + rts + +.section __ex_table,"a" + .align 4 + .long 1b,11f + .long 2b,21f +.previous +.section .fixup,"ax" + .even +11: move.l #0x020003c0,%d0 + or.l %d2,%d0 + swap %d0 + jra 3b +21: move.l #0x02000bc0,%d0 + or.l %d2,%d0 + swap %d0 + jra 3b +.previous + +| +| _060_unlock_page(): +| +| Entry point for the operating system`s routine to "unlock" a +| page that has been "locked" previously with _real_lock_page. +| Note: the routine must unlock two pages if the operand spans +| two pages. +| Arguments: +| a0 = operand address +| d0 = `xxxxxxff -> supervisor; `xxxxxx00 -> user +| d1 = `xxxxxxff -> longword; `xxxxxx00 -> word +| +| Linux/m68k: perhaps reenable preemption here... + + .global _060_real_unlock_page +_060_real_unlock_page: + clr.l %d0 + rts + +|########################################################################### + +|################################# +| (2) EXAMPLE PACKAGE ENTRY CODE # +|################################# + + .global _060_isp_unimp +_060_isp_unimp: + bral _I_CALL_TOP+0x80+0x00 + + .global _060_isp_cas +_060_isp_cas: + bral _I_CALL_TOP+0x80+0x08 + + .global _060_isp_cas2 +_060_isp_cas2: + bral _I_CALL_TOP+0x80+0x10 + + .global _060_isp_cas_finish +_060_isp_cas_finish: + bra.l _I_CALL_TOP+0x80+0x18 + + .global _060_isp_cas2_finish +_060_isp_cas2_finish: + bral _I_CALL_TOP+0x80+0x20 + + .global _060_isp_cas_inrange +_060_isp_cas_inrange: + bral _I_CALL_TOP+0x80+0x28 + + .global _060_isp_cas_terminate +_060_isp_cas_terminate: + bral _I_CALL_TOP+0x80+0x30 + + .global _060_isp_cas_restart +_060_isp_cas_restart: + bral _I_CALL_TOP+0x80+0x38 + +|########################################################################### + +|############################### +| (3) EXAMPLE CALL-OUT SECTION # +|############################### + +| The size of this section MUST be 128 bytes!!! + +_I_CALL_TOP: + .long _060_real_chk - _I_CALL_TOP + .long _060_real_divbyzero - _I_CALL_TOP + .long _060_real_trace - _I_CALL_TOP + .long _060_real_access - _I_CALL_TOP + .long _060_isp_done - _I_CALL_TOP + + .long _060_real_cas - _I_CALL_TOP + .long _060_real_cas2 - _I_CALL_TOP + .long _060_real_lock_page - _I_CALL_TOP + .long _060_real_unlock_page - _I_CALL_TOP + + .long 0x00000000, 0x00000000, 0x00000000, 0x00000000 + .long 0x00000000, 0x00000000, 0x00000000 + + .long _060_imem_read - _I_CALL_TOP + .long _060_dmem_read - _I_CALL_TOP + .long _060_dmem_write - _I_CALL_TOP + .long _060_imem_read_word - _I_CALL_TOP + .long _060_imem_read_long - _I_CALL_TOP + .long _060_dmem_read_byte - _I_CALL_TOP + .long _060_dmem_read_word - _I_CALL_TOP + .long _060_dmem_read_long - _I_CALL_TOP + .long _060_dmem_write_byte - _I_CALL_TOP + .long _060_dmem_write_word - _I_CALL_TOP + .long _060_dmem_write_long - _I_CALL_TOP + + .long 0x00000000 + .long 0x00000000, 0x00000000, 0x00000000, 0x00000000 + +|########################################################################### + +| 060 INTEGER KERNEL PACKAGE MUST GO HERE!!! +#include "isp.sa" -- cgit v1.2.3