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/gpu/drm/nouveau/nvkm/subdev/therm/g84.c | 247 ++++++++++++++++++++++++ 1 file changed, 247 insertions(+) create mode 100644 drivers/gpu/drm/nouveau/nvkm/subdev/therm/g84.c (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/therm/g84.c') diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/therm/g84.c b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/g84.c new file mode 100644 index 000000000..4af86f2d3 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/therm/g84.c @@ -0,0 +1,247 @@ +/* + * Copyright 2012 Red Hat Inc. + * + * 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: Ben Skeggs + * Martin Peres + */ +#include "priv.h" + +#include + +int +g84_temp_get(struct nvkm_therm *therm) +{ + struct nvkm_device *device = therm->subdev.device; + + if (nvkm_fuse_read(device->fuse, 0x1a8) == 1) + return nvkm_rd32(device, 0x20400); + else + return -ENODEV; +} + +void +g84_sensor_setup(struct nvkm_therm *therm) +{ + struct nvkm_device *device = therm->subdev.device; + + /* enable temperature reading for cards with insane defaults */ + if (nvkm_fuse_read(device->fuse, 0x1a8) == 1) { + nvkm_mask(device, 0x20008, 0x80008000, 0x80000000); + nvkm_mask(device, 0x2000c, 0x80000003, 0x00000000); + mdelay(20); /* wait for the temperature to stabilize */ + } +} + +static void +g84_therm_program_alarms(struct nvkm_therm *therm) +{ + struct nvbios_therm_sensor *sensor = &therm->bios_sensor; + struct nvkm_subdev *subdev = &therm->subdev; + struct nvkm_device *device = subdev->device; + unsigned long flags; + + spin_lock_irqsave(&therm->sensor.alarm_program_lock, flags); + + /* enable RISING and FALLING IRQs for shutdown, THRS 0, 1, 2 and 4 */ + nvkm_wr32(device, 0x20000, 0x000003ff); + + /* shutdown: The computer should be shutdown when reached */ + nvkm_wr32(device, 0x20484, sensor->thrs_shutdown.hysteresis); + nvkm_wr32(device, 0x20480, sensor->thrs_shutdown.temp); + + /* THRS_1 : fan boost*/ + nvkm_wr32(device, 0x204c4, sensor->thrs_fan_boost.temp); + + /* THRS_2 : critical */ + nvkm_wr32(device, 0x204c0, sensor->thrs_critical.temp); + + /* THRS_4 : down clock */ + nvkm_wr32(device, 0x20414, sensor->thrs_down_clock.temp); + spin_unlock_irqrestore(&therm->sensor.alarm_program_lock, flags); + + nvkm_debug(subdev, + "Programmed thresholds [ %d(%d), %d(%d), %d(%d), %d(%d) ]\n", + sensor->thrs_fan_boost.temp, + sensor->thrs_fan_boost.hysteresis, + sensor->thrs_down_clock.temp, + sensor->thrs_down_clock.hysteresis, + sensor->thrs_critical.temp, + sensor->thrs_critical.hysteresis, + sensor->thrs_shutdown.temp, + sensor->thrs_shutdown.hysteresis); + +} + +/* must be called with alarm_program_lock taken ! */ +static void +g84_therm_threshold_hyst_emulation(struct nvkm_therm *therm, + uint32_t thrs_reg, u8 status_bit, + const struct nvbios_therm_threshold *thrs, + enum nvkm_therm_thrs thrs_name) +{ + struct nvkm_device *device = therm->subdev.device; + enum nvkm_therm_thrs_direction direction; + enum nvkm_therm_thrs_state prev_state, new_state; + int temp, cur; + + prev_state = nvkm_therm_sensor_get_threshold_state(therm, thrs_name); + temp = nvkm_rd32(device, thrs_reg); + + /* program the next threshold */ + if (temp == thrs->temp) { + nvkm_wr32(device, thrs_reg, thrs->temp - thrs->hysteresis); + new_state = NVKM_THERM_THRS_HIGHER; + } else { + nvkm_wr32(device, thrs_reg, thrs->temp); + new_state = NVKM_THERM_THRS_LOWER; + } + + /* fix the state (in case someone reprogrammed the alarms) */ + cur = therm->func->temp_get(therm); + if (new_state == NVKM_THERM_THRS_LOWER && cur > thrs->temp) + new_state = NVKM_THERM_THRS_HIGHER; + else if (new_state == NVKM_THERM_THRS_HIGHER && + cur < thrs->temp - thrs->hysteresis) + new_state = NVKM_THERM_THRS_LOWER; + nvkm_therm_sensor_set_threshold_state(therm, thrs_name, new_state); + + /* find the direction */ + if (prev_state < new_state) + direction = NVKM_THERM_THRS_RISING; + else if (prev_state > new_state) + direction = NVKM_THERM_THRS_FALLING; + else + return; + + /* advertise a change in direction */ + nvkm_therm_sensor_event(therm, thrs_name, direction); +} + +static void +g84_therm_intr(struct nvkm_therm *therm) +{ + struct nvkm_subdev *subdev = &therm->subdev; + struct nvkm_device *device = subdev->device; + struct nvbios_therm_sensor *sensor = &therm->bios_sensor; + unsigned long flags; + uint32_t intr; + + spin_lock_irqsave(&therm->sensor.alarm_program_lock, flags); + + intr = nvkm_rd32(device, 0x20100) & 0x3ff; + + /* THRS_4: downclock */ + if (intr & 0x002) { + g84_therm_threshold_hyst_emulation(therm, 0x20414, 24, + &sensor->thrs_down_clock, + NVKM_THERM_THRS_DOWNCLOCK); + intr &= ~0x002; + } + + /* shutdown */ + if (intr & 0x004) { + g84_therm_threshold_hyst_emulation(therm, 0x20480, 20, + &sensor->thrs_shutdown, + NVKM_THERM_THRS_SHUTDOWN); + intr &= ~0x004; + } + + /* THRS_1 : fan boost */ + if (intr & 0x008) { + g84_therm_threshold_hyst_emulation(therm, 0x204c4, 21, + &sensor->thrs_fan_boost, + NVKM_THERM_THRS_FANBOOST); + intr &= ~0x008; + } + + /* THRS_2 : critical */ + if (intr & 0x010) { + g84_therm_threshold_hyst_emulation(therm, 0x204c0, 22, + &sensor->thrs_critical, + NVKM_THERM_THRS_CRITICAL); + intr &= ~0x010; + } + + if (intr) + nvkm_error(subdev, "intr %08x\n", intr); + + /* ACK everything */ + nvkm_wr32(device, 0x20100, 0xffffffff); + nvkm_wr32(device, 0x1100, 0x10000); /* PBUS */ + + spin_unlock_irqrestore(&therm->sensor.alarm_program_lock, flags); +} + +void +g84_therm_fini(struct nvkm_therm *therm) +{ + struct nvkm_device *device = therm->subdev.device; + + /* Disable PTherm IRQs */ + nvkm_wr32(device, 0x20000, 0x00000000); + + /* ACK all PTherm IRQs */ + nvkm_wr32(device, 0x20100, 0xffffffff); + nvkm_wr32(device, 0x1100, 0x10000); /* PBUS */ +} + +void +g84_therm_init(struct nvkm_therm *therm) +{ + g84_sensor_setup(therm); +} + +static const struct nvkm_therm_func +g84_therm = { + .init = g84_therm_init, + .fini = g84_therm_fini, + .intr = g84_therm_intr, + .pwm_ctrl = nv50_fan_pwm_ctrl, + .pwm_get = nv50_fan_pwm_get, + .pwm_set = nv50_fan_pwm_set, + .pwm_clock = nv50_fan_pwm_clock, + .temp_get = g84_temp_get, + .program_alarms = g84_therm_program_alarms, +}; + +int +g84_therm_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, + struct nvkm_therm **ptherm) +{ + struct nvkm_therm *therm; + int ret; + + ret = nvkm_therm_new_(&g84_therm, device, type, inst, &therm); + *ptherm = therm; + if (ret) + return ret; + + /* init the thresholds */ + nvkm_therm_sensor_set_threshold_state(therm, NVKM_THERM_THRS_SHUTDOWN, + NVKM_THERM_THRS_LOWER); + nvkm_therm_sensor_set_threshold_state(therm, NVKM_THERM_THRS_FANBOOST, + NVKM_THERM_THRS_LOWER); + nvkm_therm_sensor_set_threshold_state(therm, NVKM_THERM_THRS_CRITICAL, + NVKM_THERM_THRS_LOWER); + nvkm_therm_sensor_set_threshold_state(therm, NVKM_THERM_THRS_DOWNCLOCK, + NVKM_THERM_THRS_LOWER); + return 0; +} -- cgit v1.2.3