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/sh/kernel/cpu/shmobile/pm.c | 153 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 153 insertions(+) create mode 100644 arch/sh/kernel/cpu/shmobile/pm.c (limited to 'arch/sh/kernel/cpu/shmobile/pm.c') diff --git a/arch/sh/kernel/cpu/shmobile/pm.c b/arch/sh/kernel/cpu/shmobile/pm.c new file mode 100644 index 000000000..ca9945f51 --- /dev/null +++ b/arch/sh/kernel/cpu/shmobile/pm.c @@ -0,0 +1,153 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * arch/sh/kernel/cpu/shmobile/pm.c + * + * Power management support code for SuperH Mobile + * + * Copyright (C) 2009 Magnus Damm + */ +#include +#include +#include +#include +#include +#include +#include +#include + +/* + * Notifier lists for pre/post sleep notification + */ +ATOMIC_NOTIFIER_HEAD(sh_mobile_pre_sleep_notifier_list); +ATOMIC_NOTIFIER_HEAD(sh_mobile_post_sleep_notifier_list); + +/* + * Sleep modes available on SuperH Mobile: + * + * Sleep mode is just plain "sleep" instruction + * Sleep Self-Refresh mode is above plus RAM put in Self-Refresh + * Standby Self-Refresh mode is above plus stopped clocks + */ +#define SUSP_MODE_SLEEP (SUSP_SH_SLEEP) +#define SUSP_MODE_SLEEP_SF (SUSP_SH_SLEEP | SUSP_SH_SF) +#define SUSP_MODE_STANDBY_SF (SUSP_SH_STANDBY | SUSP_SH_SF) +#define SUSP_MODE_RSTANDBY_SF \ + (SUSP_SH_RSTANDBY | SUSP_SH_MMU | SUSP_SH_REGS | SUSP_SH_SF) + /* + * U-standby mode is unsupported since it needs bootloader hacks + */ + +#ifdef CONFIG_CPU_SUBTYPE_SH7724 +#define RAM_BASE 0xfd800000 /* RSMEM */ +#else +#define RAM_BASE 0xe5200000 /* ILRAM */ +#endif + +void sh_mobile_call_standby(unsigned long mode) +{ + void *onchip_mem = (void *)RAM_BASE; + struct sh_sleep_data *sdp = onchip_mem; + void (*standby_onchip_mem)(unsigned long, unsigned long); + + /* code located directly after data structure */ + standby_onchip_mem = (void *)(sdp + 1); + + atomic_notifier_call_chain(&sh_mobile_pre_sleep_notifier_list, + mode, NULL); + + /* flush the caches if MMU flag is set */ + if (mode & SUSP_SH_MMU) + flush_cache_all(); + + /* Let assembly snippet in on-chip memory handle the rest */ + standby_onchip_mem(mode, RAM_BASE); + + atomic_notifier_call_chain(&sh_mobile_post_sleep_notifier_list, + mode, NULL); +} + +extern char sh_mobile_sleep_enter_start; +extern char sh_mobile_sleep_enter_end; + +extern char sh_mobile_sleep_resume_start; +extern char sh_mobile_sleep_resume_end; + +unsigned long sh_mobile_sleep_supported = SUSP_SH_SLEEP; + +void sh_mobile_register_self_refresh(unsigned long flags, + void *pre_start, void *pre_end, + void *post_start, void *post_end) +{ + void *onchip_mem = (void *)RAM_BASE; + void *vp; + struct sh_sleep_data *sdp; + int n; + + /* part 0: data area */ + sdp = onchip_mem; + sdp->addr.stbcr = 0xa4150020; /* STBCR */ + sdp->addr.bar = 0xa4150040; /* BAR */ + sdp->addr.pteh = 0xff000000; /* PTEH */ + sdp->addr.ptel = 0xff000004; /* PTEL */ + sdp->addr.ttb = 0xff000008; /* TTB */ + sdp->addr.tea = 0xff00000c; /* TEA */ + sdp->addr.mmucr = 0xff000010; /* MMUCR */ + sdp->addr.ptea = 0xff000034; /* PTEA */ + sdp->addr.pascr = 0xff000070; /* PASCR */ + sdp->addr.irmcr = 0xff000078; /* IRMCR */ + sdp->addr.ccr = 0xff00001c; /* CCR */ + sdp->addr.ramcr = 0xff000074; /* RAMCR */ + vp = sdp + 1; + + /* part 1: common code to enter sleep mode */ + n = &sh_mobile_sleep_enter_end - &sh_mobile_sleep_enter_start; + memcpy(vp, &sh_mobile_sleep_enter_start, n); + vp += roundup(n, 4); + + /* part 2: board specific code to enter self-refresh mode */ + n = pre_end - pre_start; + memcpy(vp, pre_start, n); + sdp->sf_pre = (unsigned long)vp; + vp += roundup(n, 4); + + /* part 3: board specific code to resume from self-refresh mode */ + n = post_end - post_start; + memcpy(vp, post_start, n); + sdp->sf_post = (unsigned long)vp; + vp += roundup(n, 4); + + /* part 4: common code to resume from sleep mode */ + WARN_ON(vp > (onchip_mem + 0x600)); + vp = onchip_mem + 0x600; /* located at interrupt vector */ + n = &sh_mobile_sleep_resume_end - &sh_mobile_sleep_resume_start; + memcpy(vp, &sh_mobile_sleep_resume_start, n); + sdp->resume = (unsigned long)vp; + + sh_mobile_sleep_supported |= flags; +} + +static int sh_pm_enter(suspend_state_t state) +{ + if (!(sh_mobile_sleep_supported & SUSP_MODE_STANDBY_SF)) + return -ENXIO; + + local_irq_disable(); + set_bl_bit(); + sh_mobile_call_standby(SUSP_MODE_STANDBY_SF); + local_irq_disable(); + clear_bl_bit(); + return 0; +} + +static const struct platform_suspend_ops sh_pm_ops = { + .enter = sh_pm_enter, + .valid = suspend_valid_only_mem, +}; + +static int __init sh_pm_init(void) +{ + suspend_set_ops(&sh_pm_ops); + return sh_mobile_setup_cpuidle(); +} + +late_initcall(sh_pm_init); -- cgit v1.2.3