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(). ... --- .../gpu/drm/nouveau/nvkm/subdev/iccsense/base.c | 331 +++++++++++++++++++++ 1 file changed, 331 insertions(+) create mode 100644 drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c') diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c new file mode 100644 index 000000000..8f0ccd366 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/iccsense/base.c @@ -0,0 +1,331 @@ +/* + * Copyright 2015 Martin Peres + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR + * OTHER DEALINGS IN THE SOFTWARE. + * + * Authors: Martin Peres + */ +#include "priv.h" + +#include +#include +#include +#include +#include + +static bool +nvkm_iccsense_validate_device(struct i2c_adapter *i2c, u8 addr, + enum nvbios_extdev_type type) +{ + switch (type) { + case NVBIOS_EXTDEV_INA209: + case NVBIOS_EXTDEV_INA219: + return nv_rd16i2cr(i2c, addr, 0x0) >= 0; + case NVBIOS_EXTDEV_INA3221: + return nv_rd16i2cr(i2c, addr, 0xff) == 0x3220 && + nv_rd16i2cr(i2c, addr, 0xfe) == 0x5449; + default: + return false; + } +} + +static int +nvkm_iccsense_poll_lane(struct i2c_adapter *i2c, u8 addr, u8 shunt_reg, + u8 shunt_shift, u8 bus_reg, u8 bus_shift, u8 shunt, + u16 lsb) +{ + int vshunt = nv_rd16i2cr(i2c, addr, shunt_reg); + int vbus = nv_rd16i2cr(i2c, addr, bus_reg); + + if (vshunt < 0 || vbus < 0) + return -EINVAL; + + vshunt >>= shunt_shift; + vbus >>= bus_shift; + + return vbus * vshunt * lsb / shunt; +} + +static int +nvkm_iccsense_ina2x9_read(struct nvkm_iccsense *iccsense, + struct nvkm_iccsense_rail *rail, + u8 shunt_reg, u8 bus_reg) +{ + return nvkm_iccsense_poll_lane(rail->sensor->i2c, rail->sensor->addr, + shunt_reg, 0, bus_reg, 3, rail->mohm, + 10 * 4); +} + +static int +nvkm_iccsense_ina209_read(struct nvkm_iccsense *iccsense, + struct nvkm_iccsense_rail *rail) +{ + return nvkm_iccsense_ina2x9_read(iccsense, rail, 3, 4); +} + +static int +nvkm_iccsense_ina219_read(struct nvkm_iccsense *iccsense, + struct nvkm_iccsense_rail *rail) +{ + return nvkm_iccsense_ina2x9_read(iccsense, rail, 1, 2); +} + +static int +nvkm_iccsense_ina3221_read(struct nvkm_iccsense *iccsense, + struct nvkm_iccsense_rail *rail) +{ + return nvkm_iccsense_poll_lane(rail->sensor->i2c, rail->sensor->addr, + 1 + (rail->idx * 2), 3, + 2 + (rail->idx * 2), 3, rail->mohm, + 40 * 8); +} + +static void +nvkm_iccsense_sensor_config(struct nvkm_iccsense *iccsense, + struct nvkm_iccsense_sensor *sensor) +{ + struct nvkm_subdev *subdev = &iccsense->subdev; + nvkm_trace(subdev, "write config of extdev %i: 0x%04x\n", sensor->id, sensor->config); + nv_wr16i2cr(sensor->i2c, sensor->addr, 0x00, sensor->config); +} + +int +nvkm_iccsense_read_all(struct nvkm_iccsense *iccsense) +{ + int result = 0; + struct nvkm_iccsense_rail *rail; + + if (!iccsense) + return -EINVAL; + + list_for_each_entry(rail, &iccsense->rails, head) { + int res; + if (!rail->read) + return -ENODEV; + + res = rail->read(iccsense, rail); + if (res < 0) + return res; + result += res; + } + return result; +} + +static void * +nvkm_iccsense_dtor(struct nvkm_subdev *subdev) +{ + struct nvkm_iccsense *iccsense = nvkm_iccsense(subdev); + struct nvkm_iccsense_sensor *sensor, *tmps; + struct nvkm_iccsense_rail *rail, *tmpr; + + list_for_each_entry_safe(sensor, tmps, &iccsense->sensors, head) { + list_del(&sensor->head); + kfree(sensor); + } + list_for_each_entry_safe(rail, tmpr, &iccsense->rails, head) { + list_del(&rail->head); + kfree(rail); + } + + return iccsense; +} + +static struct nvkm_iccsense_sensor* +nvkm_iccsense_create_sensor(struct nvkm_iccsense *iccsense, u8 id) +{ + struct nvkm_subdev *subdev = &iccsense->subdev; + struct nvkm_bios *bios = subdev->device->bios; + struct nvkm_i2c *i2c = subdev->device->i2c; + struct nvbios_extdev_func extdev; + struct nvkm_i2c_bus *i2c_bus; + struct nvkm_iccsense_sensor *sensor; + u8 addr; + + if (!i2c || !bios || nvbios_extdev_parse(bios, id, &extdev)) + return NULL; + + if (extdev.type == 0xff) + return NULL; + + if (extdev.type != NVBIOS_EXTDEV_INA209 && + extdev.type != NVBIOS_EXTDEV_INA219 && + extdev.type != NVBIOS_EXTDEV_INA3221) { + iccsense->data_valid = false; + nvkm_error(subdev, "Unknown sensor type %x, power reading " + "disabled\n", extdev.type); + return NULL; + } + + if (extdev.bus) + i2c_bus = nvkm_i2c_bus_find(i2c, NVKM_I2C_BUS_SEC); + else + i2c_bus = nvkm_i2c_bus_find(i2c, NVKM_I2C_BUS_PRI); + if (!i2c_bus) + return NULL; + + addr = extdev.addr >> 1; + if (!nvkm_iccsense_validate_device(&i2c_bus->i2c, addr, + extdev.type)) { + iccsense->data_valid = false; + nvkm_warn(subdev, "found invalid sensor id: %i, power reading" + "might be invalid\n", id); + return NULL; + } + + sensor = kmalloc(sizeof(*sensor), GFP_KERNEL); + if (!sensor) + return NULL; + + list_add_tail(&sensor->head, &iccsense->sensors); + sensor->id = id; + sensor->type = extdev.type; + sensor->i2c = &i2c_bus->i2c; + sensor->addr = addr; + sensor->config = 0x0; + return sensor; +} + +static struct nvkm_iccsense_sensor* +nvkm_iccsense_get_sensor(struct nvkm_iccsense *iccsense, u8 id) +{ + struct nvkm_iccsense_sensor *sensor; + list_for_each_entry(sensor, &iccsense->sensors, head) { + if (sensor->id == id) + return sensor; + } + return nvkm_iccsense_create_sensor(iccsense, id); +} + +static int +nvkm_iccsense_oneinit(struct nvkm_subdev *subdev) +{ + struct nvkm_iccsense *iccsense = nvkm_iccsense(subdev); + struct nvkm_bios *bios = subdev->device->bios; + struct nvbios_power_budget budget; + struct nvbios_iccsense stbl; + int i, ret; + + if (!bios) + return 0; + + ret = nvbios_power_budget_header(bios, &budget); + if (!ret && budget.cap_entry != 0xff) { + struct nvbios_power_budget_entry entry; + ret = nvbios_power_budget_entry(bios, &budget, + budget.cap_entry, &entry); + if (!ret) { + iccsense->power_w_max = entry.avg_w; + iccsense->power_w_crit = entry.max_w; + } + } + + if (nvbios_iccsense_parse(bios, &stbl) || !stbl.nr_entry) + return 0; + + iccsense->data_valid = true; + for (i = 0; i < stbl.nr_entry; ++i) { + struct pwr_rail_t *pwr_rail = &stbl.rail[i]; + struct nvkm_iccsense_sensor *sensor; + int r; + + if (pwr_rail->mode != 1 || !pwr_rail->resistor_count) + continue; + + sensor = nvkm_iccsense_get_sensor(iccsense, pwr_rail->extdev_id); + if (!sensor) + continue; + + if (!sensor->config) + sensor->config = pwr_rail->config; + else if (sensor->config != pwr_rail->config) + nvkm_error(subdev, "config mismatch found for extdev %i\n", pwr_rail->extdev_id); + + for (r = 0; r < pwr_rail->resistor_count; ++r) { + struct nvkm_iccsense_rail *rail; + struct pwr_rail_resistor_t *res = &pwr_rail->resistors[r]; + int (*read)(struct nvkm_iccsense *, + struct nvkm_iccsense_rail *); + + if (!res->mohm || !res->enabled) + continue; + + switch (sensor->type) { + case NVBIOS_EXTDEV_INA209: + read = nvkm_iccsense_ina209_read; + break; + case NVBIOS_EXTDEV_INA219: + read = nvkm_iccsense_ina219_read; + break; + case NVBIOS_EXTDEV_INA3221: + read = nvkm_iccsense_ina3221_read; + break; + default: + continue; + } + + rail = kmalloc(sizeof(*rail), GFP_KERNEL); + if (!rail) + return -ENOMEM; + + rail->read = read; + rail->sensor = sensor; + rail->idx = r; + rail->mohm = res->mohm; + nvkm_debug(subdev, "create rail for extdev %i: { idx: %i, mohm: %i }\n", pwr_rail->extdev_id, r, rail->mohm); + list_add_tail(&rail->head, &iccsense->rails); + } + } + return 0; +} + +static int +nvkm_iccsense_init(struct nvkm_subdev *subdev) +{ + struct nvkm_iccsense *iccsense = nvkm_iccsense(subdev); + struct nvkm_iccsense_sensor *sensor; + list_for_each_entry(sensor, &iccsense->sensors, head) + nvkm_iccsense_sensor_config(iccsense, sensor); + return 0; +} + +static const struct nvkm_subdev_func +iccsense_func = { + .oneinit = nvkm_iccsense_oneinit, + .init = nvkm_iccsense_init, + .dtor = nvkm_iccsense_dtor, +}; + +void +nvkm_iccsense_ctor(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, + struct nvkm_iccsense *iccsense) +{ + nvkm_subdev_ctor(&iccsense_func, device, type, inst, &iccsense->subdev); +} + +int +nvkm_iccsense_new_(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, + struct nvkm_iccsense **iccsense) +{ + if (!(*iccsense = kzalloc(sizeof(**iccsense), GFP_KERNEL))) + return -ENOMEM; + INIT_LIST_HEAD(&(*iccsense)->sensors); + INIT_LIST_HEAD(&(*iccsense)->rails); + nvkm_iccsense_ctor(device, type, inst, *iccsense); + return 0; +} -- cgit v1.2.3