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(). ... --- sound/soc/intel/avs/debugfs.c | 436 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 436 insertions(+) create mode 100644 sound/soc/intel/avs/debugfs.c (limited to 'sound/soc/intel/avs/debugfs.c') diff --git a/sound/soc/intel/avs/debugfs.c b/sound/soc/intel/avs/debugfs.c new file mode 100644 index 000000000..bdd388ec0 --- /dev/null +++ b/sound/soc/intel/avs/debugfs.c @@ -0,0 +1,436 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// Copyright(c) 2021-2022 Intel Corporation. All rights reserved. +// +// Authors: Cezary Rojewski +// Amadeusz Slawinski +// + +#include +#include +#include +#include +#include +#include "avs.h" +#include "messages.h" + +static unsigned int __kfifo_fromio(struct kfifo *fifo, const void __iomem *src, unsigned int len) +{ + struct __kfifo *__fifo = &fifo->kfifo; + unsigned int l, off; + + len = min(len, kfifo_avail(fifo)); + off = __fifo->in & __fifo->mask; + l = min(len, kfifo_size(fifo) - off); + + memcpy_fromio(__fifo->data + off, src, l); + memcpy_fromio(__fifo->data, src + l, len - l); + /* Make sure data copied from SRAM is visible to all CPUs. */ + smp_mb(); + __fifo->in += len; + + return len; +} + +bool avs_logging_fw(struct avs_dev *adev) +{ + return kfifo_initialized(&adev->trace_fifo); +} + +void avs_dump_fw_log(struct avs_dev *adev, const void __iomem *src, unsigned int len) +{ + __kfifo_fromio(&adev->trace_fifo, src, len); +} + +void avs_dump_fw_log_wakeup(struct avs_dev *adev, const void __iomem *src, unsigned int len) +{ + avs_dump_fw_log(adev, src, len); + wake_up(&adev->trace_waitq); +} + +static ssize_t fw_regs_read(struct file *file, char __user *to, size_t count, loff_t *ppos) +{ + struct avs_dev *adev = file->private_data; + char *buf; + int ret; + + buf = kzalloc(AVS_FW_REGS_SIZE, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + memcpy_fromio(buf, avs_sram_addr(adev, AVS_FW_REGS_WINDOW), AVS_FW_REGS_SIZE); + + ret = simple_read_from_buffer(to, count, ppos, buf, AVS_FW_REGS_SIZE); + kfree(buf); + return ret; +} + +static const struct file_operations fw_regs_fops = { + .open = simple_open, + .read = fw_regs_read, + .llseek = no_llseek, +}; + +static ssize_t debug_window_read(struct file *file, char __user *to, size_t count, loff_t *ppos) +{ + struct avs_dev *adev = file->private_data; + size_t size; + char *buf; + int ret; + + size = adev->hw_cfg.dsp_cores * AVS_WINDOW_CHUNK_SIZE; + buf = kzalloc(size, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + memcpy_fromio(buf, avs_sram_addr(adev, AVS_DEBUG_WINDOW), size); + + ret = simple_read_from_buffer(to, count, ppos, buf, size); + kfree(buf); + return ret; +} + +static const struct file_operations debug_window_fops = { + .open = simple_open, + .read = debug_window_read, + .llseek = no_llseek, +}; + +static ssize_t probe_points_read(struct file *file, char __user *to, size_t count, loff_t *ppos) +{ + struct avs_dev *adev = file->private_data; + struct avs_probe_point_desc *desc; + size_t num_desc, len = 0; + char *buf; + int i, ret; + + /* Prevent chaining, send and dump IPC value just once. */ + if (*ppos) + return 0; + + buf = kzalloc(PAGE_SIZE, GFP_KERNEL); + if (!buf) + return -ENOMEM; + + ret = avs_ipc_probe_get_points(adev, &desc, &num_desc); + if (ret) { + ret = AVS_IPC_RET(ret); + goto exit; + } + + for (i = 0; i < num_desc; i++) { + ret = snprintf(buf + len, PAGE_SIZE - len, + "Id: %#010x Purpose: %d Node id: %#x\n", + desc[i].id.value, desc[i].purpose, desc[i].node_id.val); + if (ret < 0) + goto free_desc; + len += ret; + } + + ret = simple_read_from_buffer(to, count, ppos, buf, len); +free_desc: + kfree(desc); +exit: + kfree(buf); + return ret; +} + +static ssize_t probe_points_write(struct file *file, const char __user *from, size_t count, + loff_t *ppos) +{ + struct avs_dev *adev = file->private_data; + struct avs_probe_point_desc *desc; + u32 *array, num_elems; + size_t bytes; + int ret; + + ret = parse_int_array_user(from, count, (int **)&array); + if (ret < 0) + return ret; + + num_elems = *array; + bytes = sizeof(*array) * num_elems; + if (bytes % sizeof(*desc)) { + ret = -EINVAL; + goto exit; + } + + desc = (struct avs_probe_point_desc *)&array[1]; + ret = avs_ipc_probe_connect_points(adev, desc, bytes / sizeof(*desc)); + if (ret) + ret = AVS_IPC_RET(ret); + else + ret = count; +exit: + kfree(array); + return ret; +} + +static const struct file_operations probe_points_fops = { + .open = simple_open, + .read = probe_points_read, + .write = probe_points_write, + .llseek = no_llseek, +}; + +static ssize_t probe_points_disconnect_write(struct file *file, const char __user *from, + size_t count, loff_t *ppos) +{ + struct avs_dev *adev = file->private_data; + union avs_probe_point_id *id; + u32 *array, num_elems; + size_t bytes; + int ret; + + ret = parse_int_array_user(from, count, (int **)&array); + if (ret < 0) + return ret; + + num_elems = *array; + bytes = sizeof(*array) * num_elems; + if (bytes % sizeof(*id)) { + ret = -EINVAL; + goto exit; + } + + id = (union avs_probe_point_id *)&array[1]; + ret = avs_ipc_probe_disconnect_points(adev, id, bytes / sizeof(*id)); + if (ret) + ret = AVS_IPC_RET(ret); + else + ret = count; +exit: + kfree(array); + return ret; +} + +static const struct file_operations probe_points_disconnect_fops = { + .open = simple_open, + .write = probe_points_disconnect_write, + .llseek = default_llseek, +}; + +static ssize_t strace_read(struct file *file, char __user *to, size_t count, loff_t *ppos) +{ + struct avs_dev *adev = file->private_data; + struct kfifo *fifo = &adev->trace_fifo; + unsigned int copied; + + if (kfifo_is_empty(fifo)) { + DEFINE_WAIT(wait); + + prepare_to_wait(&adev->trace_waitq, &wait, TASK_INTERRUPTIBLE); + if (!signal_pending(current)) + schedule(); + finish_wait(&adev->trace_waitq, &wait); + } + + if (kfifo_to_user(fifo, to, count, &copied)) + return -EFAULT; + *ppos += copied; + return copied; +} + +static int strace_open(struct inode *inode, struct file *file) +{ + struct avs_dev *adev = inode->i_private; + int ret; + + if (kfifo_initialized(&adev->trace_fifo)) + return -EBUSY; + + ret = kfifo_alloc(&adev->trace_fifo, PAGE_SIZE, GFP_KERNEL); + if (ret < 0) + return ret; + + file->private_data = adev; + return 0; +} + +static int strace_release(struct inode *inode, struct file *file) +{ + union avs_notify_msg msg = AVS_NOTIFICATION(LOG_BUFFER_STATUS); + struct avs_dev *adev = file->private_data; + unsigned long resource_mask; + unsigned long flags, i; + u32 num_cores; + + resource_mask = adev->logged_resources; + num_cores = adev->hw_cfg.dsp_cores; + + spin_lock_irqsave(&adev->trace_lock, flags); + + /* Gather any remaining logs. */ + for_each_set_bit(i, &resource_mask, num_cores) { + msg.log.core = i; + avs_dsp_op(adev, log_buffer_status, &msg); + } + + kfifo_free(&adev->trace_fifo); + + spin_unlock_irqrestore(&adev->trace_lock, flags); + + return 0; +} + +static const struct file_operations strace_fops = { + .llseek = default_llseek, + .read = strace_read, + .open = strace_open, + .release = strace_release, +}; + +#define DISABLE_TIMERS UINT_MAX + +static int enable_logs(struct avs_dev *adev, u32 resource_mask, u32 *priorities) +{ + int ret; + + /* Logging demands D0i0 state from DSP. */ + if (!adev->logged_resources) { + pm_runtime_get_sync(adev->dev); + + ret = avs_dsp_disable_d0ix(adev); + if (ret) + goto err_d0ix; + } + + ret = avs_ipc_set_system_time(adev); + if (ret && ret != AVS_IPC_NOT_SUPPORTED) { + ret = AVS_IPC_RET(ret); + goto err_ipc; + } + + ret = avs_dsp_op(adev, enable_logs, AVS_LOG_ENABLE, adev->aging_timer_period, + adev->fifo_full_timer_period, resource_mask, priorities); + if (ret) + goto err_ipc; + + adev->logged_resources |= resource_mask; + return 0; + +err_ipc: + if (!adev->logged_resources) { + avs_dsp_enable_d0ix(adev); +err_d0ix: + pm_runtime_mark_last_busy(adev->dev); + pm_runtime_put_autosuspend(adev->dev); + } + + return ret; +} + +static int disable_logs(struct avs_dev *adev, u32 resource_mask) +{ + int ret; + + /* Check if there's anything to do. */ + if (!adev->logged_resources) + return 0; + + ret = avs_dsp_op(adev, enable_logs, AVS_LOG_DISABLE, DISABLE_TIMERS, DISABLE_TIMERS, + resource_mask, NULL); + + /* + * If IPC fails causing recovery, logged_resources is already zero + * so unsetting bits is still safe. + */ + adev->logged_resources &= ~resource_mask; + + /* If that's the last resource, allow for D3. */ + if (!adev->logged_resources) { + avs_dsp_enable_d0ix(adev); + pm_runtime_mark_last_busy(adev->dev); + pm_runtime_put_autosuspend(adev->dev); + } + + return ret; +} + +static ssize_t trace_control_read(struct file *file, char __user *to, size_t count, loff_t *ppos) +{ + struct avs_dev *adev = file->private_data; + char buf[64]; + int len; + + len = snprintf(buf, sizeof(buf), "0x%08x\n", adev->logged_resources); + + return simple_read_from_buffer(to, count, ppos, buf, len); +} + +static ssize_t trace_control_write(struct file *file, const char __user *from, size_t count, + loff_t *ppos) +{ + struct avs_dev *adev = file->private_data; + u32 *array, num_elems; + u32 resource_mask; + int ret; + + ret = parse_int_array_user(from, count, (int **)&array); + if (ret < 0) + return ret; + + num_elems = *array; + resource_mask = array[1]; + + /* + * Disable if just resource mask is provided - no log priority flags. + * + * Enable input format: mask, prio1, .., prioN + * Where 'N' equals number of bits set in the 'mask'. + */ + if (num_elems == 1) { + ret = disable_logs(adev, resource_mask); + } else { + if (num_elems != (hweight_long(resource_mask) + 1)) { + ret = -EINVAL; + goto free_array; + } + + ret = enable_logs(adev, resource_mask, &array[2]); + } + + if (!ret) + ret = count; +free_array: + kfree(array); + return ret; +} + +static const struct file_operations trace_control_fops = { + .llseek = default_llseek, + .read = trace_control_read, + .write = trace_control_write, + .open = simple_open, +}; + +void avs_debugfs_init(struct avs_dev *adev) +{ + init_waitqueue_head(&adev->trace_waitq); + spin_lock_init(&adev->trace_lock); + + adev->debugfs_root = debugfs_create_dir("avs", snd_soc_debugfs_root); + + /* Initialize timer periods with recommended defaults. */ + adev->aging_timer_period = 10; + adev->fifo_full_timer_period = 10; + + debugfs_create_file("strace", 0444, adev->debugfs_root, adev, &strace_fops); + debugfs_create_file("trace_control", 0644, adev->debugfs_root, adev, &trace_control_fops); + debugfs_create_file("fw_regs", 0444, adev->debugfs_root, adev, &fw_regs_fops); + debugfs_create_file("debug_window", 0444, adev->debugfs_root, adev, &debug_window_fops); + + debugfs_create_u32("trace_aging_period", 0644, adev->debugfs_root, + &adev->aging_timer_period); + debugfs_create_u32("trace_fifo_full_period", 0644, adev->debugfs_root, + &adev->fifo_full_timer_period); + + debugfs_create_file("probe_points", 0644, adev->debugfs_root, adev, &probe_points_fops); + debugfs_create_file("probe_points_disconnect", 0200, adev->debugfs_root, adev, + &probe_points_disconnect_fops); +} + +void avs_debugfs_exit(struct avs_dev *adev) +{ + debugfs_remove_recursive(adev->debugfs_root); +} -- cgit v1.2.3