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/fpsp040/sint.S | 246 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 246 insertions(+) create mode 100644 arch/m68k/fpsp040/sint.S (limited to 'arch/m68k/fpsp040/sint.S') diff --git a/arch/m68k/fpsp040/sint.S b/arch/m68k/fpsp040/sint.S new file mode 100644 index 000000000..0e92d4e5d --- /dev/null +++ b/arch/m68k/fpsp040/sint.S @@ -0,0 +1,246 @@ +| +| sint.sa 3.1 12/10/90 +| +| The entry point sINT computes the rounded integer +| equivalent of the input argument, sINTRZ computes +| the integer rounded to zero of the input argument. +| +| Entry points sint and sintrz are called from do_func +| to emulate the fint and fintrz unimplemented instructions, +| respectively. Entry point sintdo is used by bindec. +| +| Input: (Entry points sint and sintrz) Double-extended +| number X in the ETEMP space in the floating-point +| save stack. +| (Entry point sintdo) Double-extended number X in +| location pointed to by the address register a0. +| (Entry point sintd) Double-extended denormalized +| number X in the ETEMP space in the floating-point +| save stack. +| +| Output: The function returns int(X) or intrz(X) in fp0. +| +| Modifies: fp0. +| +| Algorithm: (sint and sintrz) +| +| 1. If exp(X) >= 63, return X. +| If exp(X) < 0, return +/- 0 or +/- 1, according to +| the rounding mode. +| +| 2. (X is in range) set rsc = 63 - exp(X). Unnormalize the +| result to the exponent $403e. +| +| 3. Round the result in the mode given in USER_FPCR. For +| sintrz, force round-to-zero mode. +| +| 4. Normalize the rounded result; store in fp0. +| +| For the denormalized cases, force the correct result +| for the given sign and rounding mode. +| +| Sign(X) +| RMODE + - +| ----- -------- +| RN +0 -0 +| RZ +0 -0 +| RM +0 -1 +| RP +1 -0 +| +| +| Copyright (C) Motorola, Inc. 1990 +| All Rights Reserved +| +| For details on the license for this file, please see the +| file, README, in this same directory. + +|SINT idnt 2,1 | Motorola 040 Floating Point Software Package + + |section 8 + +#include "fpsp.h" + + |xref dnrm_lp + |xref nrm_set + |xref round + |xref t_inx2 + |xref ld_pone + |xref ld_mone + |xref ld_pzero + |xref ld_mzero + |xref snzrinx + +| +| FINT +| + .global sint +sint: + bfextu FPCR_MODE(%a6){#2:#2},%d1 |use user's mode for rounding +| ;implicitly has extend precision +| ;in upper word. + movel %d1,L_SCR1(%a6) |save mode bits + bras sintexc + +| +| FINT with extended denorm inputs. +| + .global sintd +sintd: + btstb #5,FPCR_MODE(%a6) + beq snzrinx |if round nearest or round zero, +/- 0 + btstb #4,FPCR_MODE(%a6) + beqs rnd_mns +rnd_pls: + btstb #sign_bit,LOCAL_EX(%a0) + bnes sintmz + bsr ld_pone |if round plus inf and pos, answer is +1 + bra t_inx2 +rnd_mns: + btstb #sign_bit,LOCAL_EX(%a0) + beqs sintpz + bsr ld_mone |if round mns inf and neg, answer is -1 + bra t_inx2 +sintpz: + bsr ld_pzero + bra t_inx2 +sintmz: + bsr ld_mzero + bra t_inx2 + +| +| FINTRZ +| + .global sintrz +sintrz: + movel #1,L_SCR1(%a6) |use rz mode for rounding +| ;implicitly has extend precision +| ;in upper word. + bras sintexc +| +| SINTDO +| +| Input: a0 points to an IEEE extended format operand +| Output: fp0 has the result +| +| Exceptions: +| +| If the subroutine results in an inexact operation, the inx2 and +| ainx bits in the USER_FPSR are set. +| +| + .global sintdo +sintdo: + bfextu FPCR_MODE(%a6){#2:#2},%d1 |use user's mode for rounding +| ;implicitly has ext precision +| ;in upper word. + movel %d1,L_SCR1(%a6) |save mode bits +| +| Real work of sint is in sintexc +| +sintexc: + bclrb #sign_bit,LOCAL_EX(%a0) |convert to internal extended +| ;format + sne LOCAL_SGN(%a0) + cmpw #0x403e,LOCAL_EX(%a0) |check if (unbiased) exp > 63 + bgts out_rnge |branch if exp < 63 + cmpw #0x3ffd,LOCAL_EX(%a0) |check if (unbiased) exp < 0 + bgt in_rnge |if 63 >= exp > 0, do calc +| +| Input is less than zero. Restore sign, and check for directed +| rounding modes. L_SCR1 contains the rmode in the lower byte. +| +un_rnge: + btstb #1,L_SCR1+3(%a6) |check for rn and rz + beqs un_rnrz + tstb LOCAL_SGN(%a0) |check for sign + bnes un_rmrp_neg +| +| Sign is +. If rp, load +1.0, if rm, load +0.0 +| + cmpib #3,L_SCR1+3(%a6) |check for rp + beqs un_ldpone |if rp, load +1.0 + bsr ld_pzero |if rm, load +0.0 + bra t_inx2 +un_ldpone: + bsr ld_pone + bra t_inx2 +| +| Sign is -. If rm, load -1.0, if rp, load -0.0 +| +un_rmrp_neg: + cmpib #2,L_SCR1+3(%a6) |check for rm + beqs un_ldmone |if rm, load -1.0 + bsr ld_mzero |if rp, load -0.0 + bra t_inx2 +un_ldmone: + bsr ld_mone + bra t_inx2 +| +| Rmode is rn or rz; return signed zero +| +un_rnrz: + tstb LOCAL_SGN(%a0) |check for sign + bnes un_rnrz_neg + bsr ld_pzero + bra t_inx2 +un_rnrz_neg: + bsr ld_mzero + bra t_inx2 + +| +| Input is greater than 2^63. All bits are significant. Return +| the input. +| +out_rnge: + bfclr LOCAL_SGN(%a0){#0:#8} |change back to IEEE ext format + beqs intps + bsetb #sign_bit,LOCAL_EX(%a0) +intps: + fmovel %fpcr,-(%sp) + fmovel #0,%fpcr + fmovex LOCAL_EX(%a0),%fp0 |if exp > 63 +| ;then return X to the user +| ;there are no fraction bits + fmovel (%sp)+,%fpcr + rts + +in_rnge: +| ;shift off fraction bits + clrl %d0 |clear d0 - initial g,r,s for +| ;dnrm_lp + movel #0x403e,%d1 |set threshold for dnrm_lp +| ;assumes a0 points to operand + bsr dnrm_lp +| ;returns unnormalized number +| ;pointed by a0 +| ;output d0 supplies g,r,s +| ;used by round + movel L_SCR1(%a6),%d1 |use selected rounding mode +| +| + bsr round |round the unnorm based on users +| ;input a0 ptr to ext X +| ; d0 g,r,s bits +| ; d1 PREC/MODE info +| ;output a0 ptr to rounded result +| ;inexact flag set in USER_FPSR +| ;if initial grs set +| +| normalize the rounded result and store value in fp0 +| + bsr nrm_set |normalize the unnorm +| ;Input: a0 points to operand to +| ;be normalized +| ;Output: a0 points to normalized +| ;result + bfclr LOCAL_SGN(%a0){#0:#8} + beqs nrmrndp + bsetb #sign_bit,LOCAL_EX(%a0) |return to IEEE extended format +nrmrndp: + fmovel %fpcr,-(%sp) + fmovel #0,%fpcr + fmovex LOCAL_EX(%a0),%fp0 |move result to fp0 + fmovel (%sp)+,%fpcr + rts + + |end -- cgit v1.2.3