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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
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Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
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(). ...
Diffstat (limited to 'drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c')
-rw-r--r--drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c260
1 files changed, 260 insertions, 0 deletions
diff --git a/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
new file mode 100644
index 000000000..00665967c
--- /dev/null
+++ b/drivers/thermal/intel/int340x_thermal/int340x_thermal_zone.c
@@ -0,0 +1,260 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * int340x_thermal_zone.c
+ * Copyright (c) 2015, Intel Corporation.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/acpi.h>
+#include <linux/thermal.h>
+#include <linux/units.h>
+#include "int340x_thermal_zone.h"
+
+static int int340x_thermal_get_zone_temp(struct thermal_zone_device *zone,
+ int *temp)
+{
+ struct int34x_thermal_zone *d = zone->devdata;
+ unsigned long long tmp;
+ acpi_status status;
+
+ status = acpi_evaluate_integer(d->adev->handle, "_TMP", NULL, &tmp);
+ if (ACPI_FAILURE(status))
+ return -EIO;
+
+ if (d->lpat_table) {
+ int conv_temp;
+
+ conv_temp = acpi_lpat_raw_to_temp(d->lpat_table, (int)tmp);
+ if (conv_temp < 0)
+ return conv_temp;
+
+ *temp = conv_temp * 10;
+ } else {
+ /* _TMP returns the temperature in tenths of degrees Kelvin */
+ *temp = deci_kelvin_to_millicelsius(tmp);
+ }
+
+ return 0;
+}
+
+static int int340x_thermal_set_trip_temp(struct thermal_zone_device *zone,
+ int trip, int temp)
+{
+ struct int34x_thermal_zone *d = zone->devdata;
+ char name[] = {'P', 'A', 'T', '0' + trip, '\0'};
+ acpi_status status;
+
+ if (trip > 9)
+ return -EINVAL;
+
+ status = acpi_execute_simple_method(d->adev->handle, name,
+ millicelsius_to_deci_kelvin(temp));
+ if (ACPI_FAILURE(status))
+ return -EIO;
+
+ return 0;
+}
+
+static void int340x_thermal_critical(struct thermal_zone_device *zone)
+{
+ dev_dbg(&zone->device, "%s: critical temperature reached\n", zone->type);
+}
+
+static struct thermal_zone_device_ops int340x_thermal_zone_ops = {
+ .get_temp = int340x_thermal_get_zone_temp,
+ .set_trip_temp = int340x_thermal_set_trip_temp,
+ .critical = int340x_thermal_critical,
+};
+
+static int int340x_thermal_read_trips(struct acpi_device *zone_adev,
+ struct thermal_trip *zone_trips,
+ int trip_cnt)
+{
+ int i, ret;
+
+ ret = thermal_acpi_critical_trip_temp(zone_adev,
+ &zone_trips[trip_cnt].temperature);
+ if (!ret) {
+ zone_trips[trip_cnt].type = THERMAL_TRIP_CRITICAL;
+ trip_cnt++;
+ }
+
+ ret = thermal_acpi_hot_trip_temp(zone_adev,
+ &zone_trips[trip_cnt].temperature);
+ if (!ret) {
+ zone_trips[trip_cnt].type = THERMAL_TRIP_HOT;
+ trip_cnt++;
+ }
+
+ ret = thermal_acpi_passive_trip_temp(zone_adev,
+ &zone_trips[trip_cnt].temperature);
+ if (!ret) {
+ zone_trips[trip_cnt].type = THERMAL_TRIP_PASSIVE;
+ trip_cnt++;
+ }
+
+ for (i = 0; i < INT340X_THERMAL_MAX_ACT_TRIP_COUNT; i++) {
+ ret = thermal_acpi_active_trip_temp(zone_adev, i,
+ &zone_trips[trip_cnt].temperature);
+ if (ret)
+ break;
+
+ zone_trips[trip_cnt].type = THERMAL_TRIP_ACTIVE;
+ trip_cnt++;
+ }
+
+ return trip_cnt;
+}
+
+static struct thermal_zone_params int340x_thermal_params = {
+ .governor_name = "user_space",
+ .no_hwmon = true,
+};
+
+struct int34x_thermal_zone *int340x_thermal_zone_add(struct acpi_device *adev,
+ int (*get_temp) (struct thermal_zone_device *, int *))
+{
+ struct int34x_thermal_zone *int34x_zone;
+ struct thermal_trip *zone_trips;
+ unsigned long long trip_cnt = 0;
+ unsigned long long hyst;
+ int trip_mask = 0;
+ acpi_status status;
+ int i, ret;
+
+ int34x_zone = kzalloc(sizeof(*int34x_zone), GFP_KERNEL);
+ if (!int34x_zone)
+ return ERR_PTR(-ENOMEM);
+
+ int34x_zone->adev = adev;
+
+ int34x_zone->ops = kmemdup(&int340x_thermal_zone_ops,
+ sizeof(int340x_thermal_zone_ops), GFP_KERNEL);
+ if (!int34x_zone->ops) {
+ ret = -ENOMEM;
+ goto err_ops_alloc;
+ }
+
+ if (get_temp)
+ int34x_zone->ops->get_temp = get_temp;
+
+ status = acpi_evaluate_integer(adev->handle, "PATC", NULL, &trip_cnt);
+ if (ACPI_SUCCESS(status)) {
+ int34x_zone->aux_trip_nr = trip_cnt;
+ trip_mask = BIT(trip_cnt) - 1;
+ }
+
+ zone_trips = kzalloc(sizeof(*zone_trips) * (trip_cnt + INT340X_THERMAL_MAX_TRIP_COUNT),
+ GFP_KERNEL);
+ if (!zone_trips) {
+ ret = -ENOMEM;
+ goto err_trips_alloc;
+ }
+
+ for (i = 0; i < trip_cnt; i++) {
+ zone_trips[i].type = THERMAL_TRIP_PASSIVE;
+ zone_trips[i].temperature = THERMAL_TEMP_INVALID;
+ }
+
+ trip_cnt = int340x_thermal_read_trips(adev, zone_trips, trip_cnt);
+
+ status = acpi_evaluate_integer(adev->handle, "GTSH", NULL, &hyst);
+ if (ACPI_SUCCESS(status))
+ hyst *= 100;
+ else
+ hyst = 0;
+
+ for (i = 0; i < trip_cnt; ++i)
+ zone_trips[i].hysteresis = hyst;
+
+ int34x_zone->trips = zone_trips;
+
+ int34x_zone->lpat_table = acpi_lpat_get_conversion_table(adev->handle);
+
+ int34x_zone->zone = thermal_zone_device_register_with_trips(
+ acpi_device_bid(adev),
+ zone_trips, trip_cnt,
+ trip_mask, int34x_zone,
+ int34x_zone->ops,
+ &int340x_thermal_params,
+ 0, 0);
+ if (IS_ERR(int34x_zone->zone)) {
+ ret = PTR_ERR(int34x_zone->zone);
+ goto err_thermal_zone;
+ }
+ ret = thermal_zone_device_enable(int34x_zone->zone);
+ if (ret)
+ goto err_enable;
+
+ return int34x_zone;
+
+err_enable:
+ thermal_zone_device_unregister(int34x_zone->zone);
+err_thermal_zone:
+ kfree(int34x_zone->trips);
+ acpi_lpat_free_conversion_table(int34x_zone->lpat_table);
+err_trips_alloc:
+ kfree(int34x_zone->ops);
+err_ops_alloc:
+ kfree(int34x_zone);
+ return ERR_PTR(ret);
+}
+EXPORT_SYMBOL_GPL(int340x_thermal_zone_add);
+
+void int340x_thermal_zone_remove(struct int34x_thermal_zone *int34x_zone)
+{
+ thermal_zone_device_unregister(int34x_zone->zone);
+ acpi_lpat_free_conversion_table(int34x_zone->lpat_table);
+ kfree(int34x_zone->trips);
+ kfree(int34x_zone->ops);
+ kfree(int34x_zone);
+}
+EXPORT_SYMBOL_GPL(int340x_thermal_zone_remove);
+
+void int340x_thermal_update_trips(struct int34x_thermal_zone *int34x_zone)
+{
+ struct acpi_device *zone_adev = int34x_zone->adev;
+ struct thermal_trip *zone_trips = int34x_zone->trips;
+ int trip_cnt = int34x_zone->zone->num_trips;
+ int act_trip_nr = 0;
+ int i;
+
+ mutex_lock(&int34x_zone->zone->lock);
+
+ for (i = int34x_zone->aux_trip_nr; i < trip_cnt; i++) {
+ int temp, err;
+
+ switch (zone_trips[i].type) {
+ case THERMAL_TRIP_CRITICAL:
+ err = thermal_acpi_critical_trip_temp(zone_adev, &temp);
+ break;
+ case THERMAL_TRIP_HOT:
+ err = thermal_acpi_hot_trip_temp(zone_adev, &temp);
+ break;
+ case THERMAL_TRIP_PASSIVE:
+ err = thermal_acpi_passive_trip_temp(zone_adev, &temp);
+ break;
+ case THERMAL_TRIP_ACTIVE:
+ err = thermal_acpi_active_trip_temp(zone_adev, act_trip_nr++,
+ &temp);
+ break;
+ default:
+ err = -ENODEV;
+ }
+ if (err) {
+ zone_trips[i].temperature = THERMAL_TEMP_INVALID;
+ continue;
+ }
+
+ zone_trips[i].temperature = temp;
+ }
+
+ mutex_unlock(&int34x_zone->zone->lock);
+}
+EXPORT_SYMBOL_GPL(int340x_thermal_update_trips);
+
+MODULE_AUTHOR("Aaron Lu <aaron.lu@intel.com>");
+MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
+MODULE_DESCRIPTION("Intel INT340x common thermal zone handler");
+MODULE_LICENSE("GPL v2");