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/math-emu/fp_decode.h | 417 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 417 insertions(+) create mode 100644 arch/m68k/math-emu/fp_decode.h (limited to 'arch/m68k/math-emu/fp_decode.h') diff --git a/arch/m68k/math-emu/fp_decode.h b/arch/m68k/math-emu/fp_decode.h new file mode 100644 index 000000000..6d1e760e2 --- /dev/null +++ b/arch/m68k/math-emu/fp_decode.h @@ -0,0 +1,417 @@ +/* + * fp_decode.h + * + * Copyright Roman Zippel, 1997. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, and the entire permission notice in its entirety, + * including the disclaimer of warranties. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. The name of the author may not be used to endorse or promote + * products derived from this software without specific prior + * written permission. + * + * ALTERNATIVELY, this product may be distributed under the terms of + * the GNU General Public License, in which case the provisions of the GPL are + * required INSTEAD OF the above restrictions. (This clause is + * necessary due to a potential bad interaction between the GPL and + * the restrictions contained in a BSD-style copyright.) + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED + * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, + * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, + * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) + * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED + * OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef _FP_DECODE_H +#define _FP_DECODE_H + +/* These macros do the dirty work of the instr decoding, several variables + * can be defined in the source file to modify the work of these macros, + * currently the following variables are used: + * ... + * The register usage: + * d0 - will contain source operand for data direct mode, + * otherwise scratch register + * d1 - upper 16bit are reserved for caller + * lower 16bit may contain further arguments, + * is destroyed during decoding + * d2 - contains first two instruction words, + * first word will be used for extension word + * a0 - will point to source/dest operand for any indirect mode + * otherwise scratch register + * a1 - scratch register + * a2 - base addr to the task structure + * + * the current implementation doesn't check for every disallowed + * addressing mode (e.g. pc relative modes as destination), as long + * as it only means a new addressing mode, which should not appear + * in a program and that doesn't crash the emulation, I think it's + * not a problem to allow these modes. + */ + +do_fmovem=0 +do_fmovem_cr=0 +do_no_pc_mode=0 +do_fscc=0 + +| first decoding of the instr type +| this separates the conditional instr +.macro fp_decode_cond_instr_type + bfextu %d2{#8,#2},%d0 + jmp ([0f:w,%pc,%d0*4]) + + .align 4 +0: +| .long "f","fscc/fdbcc" +| .long "fbccw","fbccl" +.endm + +| second decoding of the instr type +| this separates most move instr +.macro fp_decode_move_instr_type + bfextu %d2{#16,#3},%d0 + jmp ([0f:w,%pc,%d0*4]) + + .align 4 +0: +| .long "f fpx,fpx","invalid instr" +| .long "f ,fpx","fmove fpx," +| .long "fmovem ,fpcr","fmovem ,fpx" +| .long "fmovem fpcr,","fmovem fpx," +.endm + +| extract the source specifier, specifies +| either source fp register or data format +.macro fp_decode_sourcespec + bfextu %d2{#19,#3},%d0 +.endm + +| decode destination format for fmove reg,ea +.macro fp_decode_dest_format + bfextu %d2{#19,#3},%d0 +.endm + +| decode source register for fmove reg,ea +.macro fp_decode_src_reg + bfextu %d2{#22,#3},%d0 +.endm + +| extract the addressing mode +| it depends on the instr which of the modes is valid +.macro fp_decode_addr_mode + bfextu %d2{#10,#3},%d0 + jmp ([0f:w,%pc,%d0*4]) + + .align 4 +0: +| .long "data register direct","addr register direct" +| .long "addr register indirect" +| .long "addr register indirect postincrement" +| .long "addr register indirect predecrement" +| .long "addr register + index16" +| .long "extension mode1","extension mode2" +.endm + +| extract the register for the addressing mode +.macro fp_decode_addr_reg + bfextu %d2{#13,#3},%d0 +.endm + +| decode the 8bit displacement from the brief extension word +.macro fp_decode_disp8 + move.b %d2,%d0 + ext.w %d0 +.endm + +| decode the index of the brief/full extension word +.macro fp_decode_index + bfextu %d2{#17,#3},%d0 | get the register nr + btst #15,%d2 | test for data/addr register + jne 1\@f + printf PDECODE,"d%d",1,%d0 + jsr fp_get_data_reg + jra 2\@f +1\@: printf PDECODE,"a%d",1,%d0 + jsr fp_get_addr_reg + move.l %a0,%d0 +2\@: +debug lea "'l'.w,%a0" + btst #11,%d2 | 16/32 bit size? + jne 3\@f +debug lea "'w'.w,%a0" + ext.l %d0 +3\@: printf PDECODE,":%c",1,%a0 + move.w %d2,%d1 | scale factor + rol.w #7,%d1 + and.w #3,%d1 +debug move.l "%d1,-(%sp)" +debug ext.l "%d1" + printf PDECODE,":%d",1,%d1 +debug move.l "(%sp)+,%d1" + lsl.l %d1,%d0 +.endm + +| decode the base displacement size +.macro fp_decode_basedisp + bfextu %d2{#26,#2},%d0 + jmp ([0f:w,%pc,%d0*4]) + + .align 4 +0: +| .long "reserved","null displacement" +| .long "word displacement","long displacement" +.endm + +.macro fp_decode_outerdisp + bfextu %d2{#30,#2},%d0 + jmp ([0f:w,%pc,%d0*4]) + + .align 4 +0: +| .long "no memory indirect action/reserved","null outer displacement" +| .long "word outer displacement","long outer displacement" +.endm + +| get the extension word and test for brief or full extension type +.macro fp_get_test_extword label + fp_get_instr_word %d2,fp_err_ua1 + btst #8,%d2 + jne \label +.endm + + +| test if %pc is the base register for the indirect addr mode +.macro fp_test_basereg_d16 label + btst #20,%d2 + jeq \label +.endm + +| test if %pc is the base register for one of the extended modes +.macro fp_test_basereg_ext label + btst #19,%d2 + jeq \label +.endm + +.macro fp_test_suppr_index label + btst #6,%d2 + jne \label +.endm + + +| addressing mode: data register direct +.macro fp_mode_data_direct + fp_decode_addr_reg + printf PDECODE,"d%d",1,%d0 +.endm + +| addressing mode: address register indirect +.macro fp_mode_addr_indirect + fp_decode_addr_reg + printf PDECODE,"(a%d)",1,%d0 + jsr fp_get_addr_reg +.endm + +| adjust stack for byte moves from/to stack +.macro fp_test_sp_byte_move + .if !do_fmovem + .if do_fscc + move.w #6,%d1 + .endif + cmp.w #7,%d0 + jne 1\@f + .if !do_fscc + cmp.w #6,%d1 + jne 1\@f + .endif + move.w #4,%d1 +1\@: + .endif +.endm + +| addressing mode: address register indirect with postincrement +.macro fp_mode_addr_indirect_postinc + fp_decode_addr_reg + printf PDECODE,"(a%d)+",1,%d0 + fp_test_sp_byte_move + jsr fp_get_addr_reg + move.l %a0,%a1 | save addr + .if do_fmovem + lea (%a0,%d1.w*4),%a0 + .if !do_fmovem_cr + lea (%a0,%d1.w*8),%a0 + .endif + .else + add.w (fp_datasize,%d1.w*2),%a0 + .endif + jsr fp_put_addr_reg + move.l %a1,%a0 +.endm + +| addressing mode: address register indirect with predecrement +.macro fp_mode_addr_indirect_predec + fp_decode_addr_reg + printf PDECODE,"-(a%d)",1,%d0 + fp_test_sp_byte_move + jsr fp_get_addr_reg + .if do_fmovem + .if !do_fmovem_cr + lea (-12,%a0),%a1 | setup to addr of 1st reg to move + neg.w %d1 + lea (%a0,%d1.w*4),%a0 + add.w %d1,%d1 + lea (%a0,%d1.w*4),%a0 + jsr fp_put_addr_reg + move.l %a1,%a0 + .else + neg.w %d1 + lea (%a0,%d1.w*4),%a0 + jsr fp_put_addr_reg + .endif + .else + sub.w (fp_datasize,%d1.w*2),%a0 + jsr fp_put_addr_reg + .endif +.endm + +| addressing mode: address register/programm counter indirect +| with 16bit displacement +.macro fp_mode_addr_indirect_disp16 + .if !do_no_pc_mode + fp_test_basereg_d16 1f + printf PDECODE,"pc" + fp_get_pc %a0 + jra 2f + .endif +1: fp_decode_addr_reg + printf PDECODE,"a%d",1,%d0 + jsr fp_get_addr_reg +2: fp_get_instr_word %a1,fp_err_ua1 + printf PDECODE,"@(%x)",1,%a1 + add.l %a1,%a0 +.endm + +| perform preindex (if I/IS == 0xx and xx != 00) +.macro fp_do_preindex + moveq #3,%d0 + and.w %d2,%d0 + jeq 1f + btst #2,%d2 + jne 1f + printf PDECODE,")@(" + getuser.l (%a1),%a1,fp_err_ua1,%a1 +debug jra "2f" +1: printf PDECODE,"," +2: +.endm + +| perform postindex (if I/IS == 1xx) +.macro fp_do_postindex + btst #2,%d2 + jeq 1f + printf PDECODE,")@(" + getuser.l (%a1),%a1,fp_err_ua1,%a1 +debug jra "2f" +1: printf PDECODE,"," +2: +.endm + +| all other indirect addressing modes will finally end up here +.macro fp_mode_addr_indirect_extmode0 + .if !do_no_pc_mode + fp_test_basereg_ext 1f + printf PDECODE,"pc" + fp_get_pc %a0 + jra 2f + .endif +1: fp_decode_addr_reg + printf PDECODE,"a%d",1,%d0 + jsr fp_get_addr_reg +2: move.l %a0,%a1 + swap %d2 + fp_get_test_extword 3f + | addressing mode: address register/programm counter indirect + | with index and 8bit displacement + fp_decode_disp8 +debug ext.l "%d0" + printf PDECODE,"@(%x,",1,%d0 + add.w %d0,%a1 + fp_decode_index + add.l %d0,%a1 + printf PDECODE,")" + jra 9f +3: | addressing mode: address register/programm counter memory indirect + | with base and/or outer displacement + btst #7,%d2 | base register suppressed? + jeq 1f + printf PDECODE,"!" + sub.l %a1,%a1 +1: printf PDECODE,"@(" + fp_decode_basedisp + + .long fp_ill,1f + .long 2f,3f + +#ifdef FPU_EMU_DEBUG +1: printf PDECODE,"0" | null base displacement + jra 1f +#endif +2: fp_get_instr_word %a0,fp_err_ua1 | 16bit base displacement + printf PDECODE,"%x:w",1,%a0 + jra 4f +3: fp_get_instr_long %a0,fp_err_ua1 | 32bit base displacement + printf PDECODE,"%x:l",1,%a0 +4: add.l %a0,%a1 +1: + fp_do_postindex + fp_test_suppr_index 1f + fp_decode_index + add.l %d0,%a1 +1: fp_do_preindex + + fp_decode_outerdisp + + .long 5f,1f + .long 2f,3f + +#ifdef FPU_EMU_DEBUG +1: printf PDECODE,"0" | null outer displacement + jra 1f +#endif +2: fp_get_instr_word %a0,fp_err_ua1 | 16bit outer displacement + printf PDECODE,"%x:w",1,%a0 + jra 4f +3: fp_get_instr_long %a0,fp_err_ua1 | 32bit outer displacement + printf PDECODE,"%x:l",1,%a0 +4: add.l %a0,%a1 +1: +5: printf PDECODE,")" +9: move.l %a1,%a0 + swap %d2 +.endm + +| get the absolute short address from user space +.macro fp_mode_abs_short + fp_get_instr_word %a0,fp_err_ua1 + printf PDECODE,"%x.w",1,%a0 +.endm + +| get the absolute long address from user space +.macro fp_mode_abs_long + fp_get_instr_long %a0,fp_err_ua1 + printf PDECODE,"%x.l",1,%a0 +.endm + +#endif /* _FP_DECODE_H */ -- cgit v1.2.3