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(). ... --- drivers/pinctrl/pxa/pinctrl-pxa2xx.c | 430 +++++++++++++++++++++++++++++++++++ 1 file changed, 430 insertions(+) create mode 100644 drivers/pinctrl/pxa/pinctrl-pxa2xx.c (limited to 'drivers/pinctrl/pxa/pinctrl-pxa2xx.c') diff --git a/drivers/pinctrl/pxa/pinctrl-pxa2xx.c b/drivers/pinctrl/pxa/pinctrl-pxa2xx.c new file mode 100644 index 000000000..d2568dab8 --- /dev/null +++ b/drivers/pinctrl/pxa/pinctrl-pxa2xx.c @@ -0,0 +1,430 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Marvell PXA2xx family pin control + * + * Copyright (C) 2015 Robert Jarzmik + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "../pinctrl-utils.h" +#include "pinctrl-pxa2xx.h" + +static int pxa2xx_pctrl_get_groups_count(struct pinctrl_dev *pctldev) +{ + struct pxa_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); + + return pctl->ngroups; +} + +static const char *pxa2xx_pctrl_get_group_name(struct pinctrl_dev *pctldev, + unsigned tgroup) +{ + struct pxa_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); + struct pxa_pinctrl_group *group = pctl->groups + tgroup; + + return group->name; +} + +static int pxa2xx_pctrl_get_group_pins(struct pinctrl_dev *pctldev, + unsigned tgroup, + const unsigned **pins, + unsigned *num_pins) +{ + struct pxa_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); + struct pxa_pinctrl_group *group = pctl->groups + tgroup; + + *pins = (unsigned *)&group->pin; + *num_pins = 1; + + return 0; +} + +static const struct pinctrl_ops pxa2xx_pctl_ops = { +#ifdef CONFIG_OF + .dt_node_to_map = pinconf_generic_dt_node_to_map_all, + .dt_free_map = pinctrl_utils_free_map, +#endif + .get_groups_count = pxa2xx_pctrl_get_groups_count, + .get_group_name = pxa2xx_pctrl_get_group_name, + .get_group_pins = pxa2xx_pctrl_get_group_pins, +}; + +static struct pxa_desc_function * +pxa_desc_by_func_group(struct pxa_pinctrl *pctl, const char *pin_name, + const char *func_name) +{ + int i; + struct pxa_desc_function *df; + + for (i = 0; i < pctl->npins; i++) { + const struct pxa_desc_pin *pin = pctl->ppins + i; + + if (!strcmp(pin->pin.name, pin_name)) + for (df = pin->functions; df->name; df++) + if (!strcmp(df->name, func_name)) + return df; + } + + return NULL; +} + +static int pxa2xx_pmx_gpio_set_direction(struct pinctrl_dev *pctldev, + struct pinctrl_gpio_range *range, + unsigned pin, + bool input) +{ + struct pxa_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); + unsigned long flags; + uint32_t val; + void __iomem *gpdr; + + gpdr = pctl->base_gpdr[pin / 32]; + dev_dbg(pctl->dev, "set_direction(pin=%d): dir=%d\n", + pin, !input); + + spin_lock_irqsave(&pctl->lock, flags); + + val = readl_relaxed(gpdr); + val = (val & ~BIT(pin % 32)) | (input ? 0 : BIT(pin % 32)); + writel_relaxed(val, gpdr); + + spin_unlock_irqrestore(&pctl->lock, flags); + + return 0; +} + +static const char *pxa2xx_pmx_get_func_name(struct pinctrl_dev *pctldev, + unsigned function) +{ + struct pxa_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); + struct pxa_pinctrl_function *pf = pctl->functions + function; + + return pf->name; +} + +static int pxa2xx_get_functions_count(struct pinctrl_dev *pctldev) +{ + struct pxa_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); + + return pctl->nfuncs; +} + +static int pxa2xx_pmx_get_func_groups(struct pinctrl_dev *pctldev, + unsigned function, + const char * const **groups, + unsigned * const num_groups) +{ + struct pxa_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); + struct pxa_pinctrl_function *pf = pctl->functions + function; + + *groups = pf->groups; + *num_groups = pf->ngroups; + + return 0; +} + +static int pxa2xx_pmx_set_mux(struct pinctrl_dev *pctldev, unsigned function, + unsigned tgroup) +{ + struct pxa_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); + struct pxa_pinctrl_group *group = pctl->groups + tgroup; + struct pxa_desc_function *df; + int pin, shift; + unsigned long flags; + void __iomem *gafr, *gpdr; + u32 val; + + + df = pxa_desc_by_func_group(pctl, group->name, + (pctl->functions + function)->name); + if (!df) + return -EINVAL; + + pin = group->pin; + gafr = pctl->base_gafr[pin / 16]; + gpdr = pctl->base_gpdr[pin / 32]; + shift = (pin % 16) << 1; + dev_dbg(pctl->dev, "set_mux(pin=%d): af=%d dir=%d\n", + pin, df->muxval >> 1, df->muxval & 0x1); + + spin_lock_irqsave(&pctl->lock, flags); + + val = readl_relaxed(gafr); + val = (val & ~(0x3 << shift)) | ((df->muxval >> 1) << shift); + writel_relaxed(val, gafr); + + val = readl_relaxed(gpdr); + val = (val & ~BIT(pin % 32)) | ((df->muxval & 1) ? BIT(pin % 32) : 0); + writel_relaxed(val, gpdr); + + spin_unlock_irqrestore(&pctl->lock, flags); + + return 0; +} +static const struct pinmux_ops pxa2xx_pinmux_ops = { + .get_functions_count = pxa2xx_get_functions_count, + .get_function_name = pxa2xx_pmx_get_func_name, + .get_function_groups = pxa2xx_pmx_get_func_groups, + .set_mux = pxa2xx_pmx_set_mux, + .gpio_set_direction = pxa2xx_pmx_gpio_set_direction, +}; + +static int pxa2xx_pconf_group_get(struct pinctrl_dev *pctldev, + unsigned group, + unsigned long *config) +{ + struct pxa_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); + struct pxa_pinctrl_group *g = pctl->groups + group; + unsigned long flags; + unsigned pin = g->pin; + void __iomem *pgsr = pctl->base_pgsr[pin / 32]; + u32 val; + + spin_lock_irqsave(&pctl->lock, flags); + val = readl_relaxed(pgsr) & BIT(pin % 32); + *config = val ? PIN_CONFIG_MODE_LOW_POWER : 0; + spin_unlock_irqrestore(&pctl->lock, flags); + + dev_dbg(pctl->dev, "get sleep gpio state(pin=%d) %d\n", + pin, !!val); + return 0; +} + +static int pxa2xx_pconf_group_set(struct pinctrl_dev *pctldev, + unsigned group, + unsigned long *configs, + unsigned num_configs) +{ + struct pxa_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); + struct pxa_pinctrl_group *g = pctl->groups + group; + unsigned long flags; + unsigned pin = g->pin; + void __iomem *pgsr = pctl->base_pgsr[pin / 32]; + int i, is_set = 0; + u32 val; + + for (i = 0; i < num_configs; i++) { + switch (pinconf_to_config_param(configs[i])) { + case PIN_CONFIG_MODE_LOW_POWER: + is_set = pinconf_to_config_argument(configs[i]); + break; + default: + return -EINVAL; + } + } + + dev_dbg(pctl->dev, "set sleep gpio state(pin=%d) %d\n", + pin, is_set); + + spin_lock_irqsave(&pctl->lock, flags); + val = readl_relaxed(pgsr); + val = (val & ~BIT(pin % 32)) | (is_set ? BIT(pin % 32) : 0); + writel_relaxed(val, pgsr); + spin_unlock_irqrestore(&pctl->lock, flags); + + return 0; +} + +static const struct pinconf_ops pxa2xx_pconf_ops = { + .pin_config_group_get = pxa2xx_pconf_group_get, + .pin_config_group_set = pxa2xx_pconf_group_set, + .is_generic = true, +}; + +static struct pinctrl_desc pxa2xx_pinctrl_desc = { + .confops = &pxa2xx_pconf_ops, + .pctlops = &pxa2xx_pctl_ops, + .pmxops = &pxa2xx_pinmux_ops, +}; + +static const struct pxa_pinctrl_function * +pxa2xx_find_function(struct pxa_pinctrl *pctl, const char *fname, + const struct pxa_pinctrl_function *functions) +{ + const struct pxa_pinctrl_function *func; + + for (func = functions; func->name; func++) + if (!strcmp(fname, func->name)) + return func; + + return NULL; +} + +static int pxa2xx_build_functions(struct pxa_pinctrl *pctl) +{ + int i; + struct pxa_pinctrl_function *functions; + struct pxa_desc_function *df; + + /* + * Each pin can have at most 6 alternate functions, and 2 gpio functions + * which are common to each pin. As there are more than 2 pins without + * alternate function, 6 * npins is an absolute high limit of the number + * of functions. + */ + functions = devm_kcalloc(pctl->dev, pctl->npins * 6, + sizeof(*functions), GFP_KERNEL); + if (!functions) + return -ENOMEM; + + for (i = 0; i < pctl->npins; i++) + for (df = pctl->ppins[i].functions; df->name; df++) + if (!pxa2xx_find_function(pctl, df->name, functions)) + (functions + pctl->nfuncs++)->name = df->name; + pctl->functions = devm_kmemdup(pctl->dev, functions, + pctl->nfuncs * sizeof(*functions), + GFP_KERNEL); + if (!pctl->functions) + return -ENOMEM; + + devm_kfree(pctl->dev, functions); + return 0; +} + +static int pxa2xx_build_groups(struct pxa_pinctrl *pctl) +{ + int i, j, ngroups; + struct pxa_pinctrl_function *func; + struct pxa_desc_function *df; + char **gtmp; + + gtmp = devm_kmalloc_array(pctl->dev, pctl->npins, sizeof(*gtmp), + GFP_KERNEL); + if (!gtmp) + return -ENOMEM; + + for (i = 0; i < pctl->nfuncs; i++) { + ngroups = 0; + for (j = 0; j < pctl->npins; j++) + for (df = pctl->ppins[j].functions; df->name; + df++) + if (!strcmp(pctl->functions[i].name, + df->name)) + gtmp[ngroups++] = (char *) + pctl->ppins[j].pin.name; + func = pctl->functions + i; + func->ngroups = ngroups; + func->groups = + devm_kmalloc_array(pctl->dev, ngroups, + sizeof(char *), GFP_KERNEL); + if (!func->groups) + return -ENOMEM; + + memcpy(func->groups, gtmp, ngroups * sizeof(*gtmp)); + } + + devm_kfree(pctl->dev, gtmp); + return 0; +} + +static int pxa2xx_build_state(struct pxa_pinctrl *pctl, + const struct pxa_desc_pin *ppins, int npins) +{ + struct pxa_pinctrl_group *group; + struct pinctrl_pin_desc *pins; + int ret, i; + + pctl->npins = npins; + pctl->ppins = ppins; + pctl->ngroups = npins; + + pctl->desc.npins = npins; + pins = devm_kcalloc(pctl->dev, npins, sizeof(*pins), GFP_KERNEL); + if (!pins) + return -ENOMEM; + + pctl->desc.pins = pins; + for (i = 0; i < npins; i++) + pins[i] = ppins[i].pin; + + pctl->groups = devm_kmalloc_array(pctl->dev, pctl->ngroups, + sizeof(*pctl->groups), GFP_KERNEL); + if (!pctl->groups) + return -ENOMEM; + + for (i = 0; i < npins; i++) { + group = pctl->groups + i; + group->name = ppins[i].pin.name; + group->pin = ppins[i].pin.number; + } + + ret = pxa2xx_build_functions(pctl); + if (ret) + return ret; + + ret = pxa2xx_build_groups(pctl); + if (ret) + return ret; + + return 0; +} + +int pxa2xx_pinctrl_init(struct platform_device *pdev, + const struct pxa_desc_pin *ppins, int npins, + void __iomem *base_gafr[], void __iomem *base_gpdr[], + void __iomem *base_pgsr[]) +{ + struct pxa_pinctrl *pctl; + int ret, i, maxpin = 0; + + for (i = 0; i < npins; i++) + maxpin = max_t(int, ppins[i].pin.number, maxpin); + + pctl = devm_kzalloc(&pdev->dev, sizeof(*pctl), GFP_KERNEL); + if (!pctl) + return -ENOMEM; + pctl->base_gafr = devm_kcalloc(&pdev->dev, roundup(maxpin, 16), + sizeof(*pctl->base_gafr), GFP_KERNEL); + pctl->base_gpdr = devm_kcalloc(&pdev->dev, roundup(maxpin, 32), + sizeof(*pctl->base_gpdr), GFP_KERNEL); + pctl->base_pgsr = devm_kcalloc(&pdev->dev, roundup(maxpin, 32), + sizeof(*pctl->base_pgsr), GFP_KERNEL); + if (!pctl->base_gafr || !pctl->base_gpdr || !pctl->base_pgsr) + return -ENOMEM; + + platform_set_drvdata(pdev, pctl); + spin_lock_init(&pctl->lock); + + pctl->dev = &pdev->dev; + pctl->desc = pxa2xx_pinctrl_desc; + pctl->desc.name = dev_name(&pdev->dev); + pctl->desc.owner = THIS_MODULE; + + for (i = 0; i < roundup(maxpin, 16); i += 16) + pctl->base_gafr[i / 16] = base_gafr[i / 16]; + for (i = 0; i < roundup(maxpin, 32); i += 32) { + pctl->base_gpdr[i / 32] = base_gpdr[i / 32]; + pctl->base_pgsr[i / 32] = base_pgsr[i / 32]; + } + + ret = pxa2xx_build_state(pctl, ppins, npins); + if (ret) + return ret; + + pctl->pctl_dev = devm_pinctrl_register(&pdev->dev, &pctl->desc, pctl); + if (IS_ERR(pctl->pctl_dev)) { + dev_err(&pdev->dev, "couldn't register pinctrl driver\n"); + return PTR_ERR(pctl->pctl_dev); + } + + dev_info(&pdev->dev, "initialized pxa2xx pinctrl driver\n"); + + return 0; +} +EXPORT_SYMBOL_GPL(pxa2xx_pinctrl_init); + +MODULE_AUTHOR("Robert Jarzmik "); +MODULE_DESCRIPTION("Marvell PXA2xx pinctrl driver"); +MODULE_LICENSE("GPL v2"); -- cgit v1.2.3