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/msm/dp/dp_debug.c | 300 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 300 insertions(+) create mode 100644 drivers/gpu/drm/msm/dp/dp_debug.c (limited to 'drivers/gpu/drm/msm/dp/dp_debug.c') diff --git a/drivers/gpu/drm/msm/dp/dp_debug.c b/drivers/gpu/drm/msm/dp/dp_debug.c new file mode 100644 index 000000000..5e35033ba --- /dev/null +++ b/drivers/gpu/drm/msm/dp/dp_debug.c @@ -0,0 +1,300 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2017-2020, The Linux Foundation. All rights reserved. + */ + +#define pr_fmt(fmt)"[drm-dp] %s: " fmt, __func__ + +#include +#include +#include + +#include "dp_parser.h" +#include "dp_catalog.h" +#include "dp_aux.h" +#include "dp_ctrl.h" +#include "dp_debug.h" +#include "dp_display.h" + +#define DEBUG_NAME "msm_dp" + +struct dp_debug_private { + struct dentry *root; + + struct dp_usbpd *usbpd; + struct dp_link *link; + struct dp_panel *panel; + struct drm_connector *connector; + struct device *dev; + struct drm_device *drm_dev; + + struct dp_debug dp_debug; +}; + +static int dp_debug_show(struct seq_file *seq, void *p) +{ + struct dp_debug_private *debug = seq->private; + u64 lclk = 0; + u32 link_params_rate; + const struct drm_display_mode *drm_mode; + + if (!debug) + return -ENODEV; + + drm_mode = &debug->panel->dp_mode.drm_mode; + + seq_printf(seq, "\tname = %s\n", DEBUG_NAME); + seq_printf(seq, "\tdrm_dp_link\n\t\trate = %u\n", + debug->panel->link_info.rate); + seq_printf(seq, "\t\tnum_lanes = %u\n", + debug->panel->link_info.num_lanes); + seq_printf(seq, "\t\tcapabilities = %lu\n", + debug->panel->link_info.capabilities); + seq_printf(seq, "\tdp_panel_info:\n\t\tactive = %dx%d\n", + drm_mode->hdisplay, + drm_mode->vdisplay); + seq_printf(seq, "\t\tback_porch = %dx%d\n", + drm_mode->htotal - drm_mode->hsync_end, + drm_mode->vtotal - drm_mode->vsync_end); + seq_printf(seq, "\t\tfront_porch = %dx%d\n", + drm_mode->hsync_start - drm_mode->hdisplay, + drm_mode->vsync_start - drm_mode->vdisplay); + seq_printf(seq, "\t\tsync_width = %dx%d\n", + drm_mode->hsync_end - drm_mode->hsync_start, + drm_mode->vsync_end - drm_mode->vsync_start); + seq_printf(seq, "\t\tactive_low = %dx%d\n", + debug->panel->dp_mode.h_active_low, + debug->panel->dp_mode.v_active_low); + seq_printf(seq, "\t\th_skew = %d\n", + drm_mode->hskew); + seq_printf(seq, "\t\trefresh rate = %d\n", + drm_mode_vrefresh(drm_mode)); + seq_printf(seq, "\t\tpixel clock khz = %d\n", + drm_mode->clock); + seq_printf(seq, "\t\tbpp = %d\n", + debug->panel->dp_mode.bpp); + + /* Link Information */ + seq_printf(seq, "\tdp_link:\n\t\ttest_requested = %d\n", + debug->link->sink_request); + seq_printf(seq, "\t\tnum_lanes = %d\n", + debug->link->link_params.num_lanes); + link_params_rate = debug->link->link_params.rate; + seq_printf(seq, "\t\tbw_code = %d\n", + drm_dp_link_rate_to_bw_code(link_params_rate)); + lclk = debug->link->link_params.rate * 1000; + seq_printf(seq, "\t\tlclk = %lld\n", lclk); + seq_printf(seq, "\t\tv_level = %d\n", + debug->link->phy_params.v_level); + seq_printf(seq, "\t\tp_level = %d\n", + debug->link->phy_params.p_level); + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(dp_debug); + +static int dp_test_data_show(struct seq_file *m, void *data) +{ + const struct dp_debug_private *debug = m->private; + const struct drm_connector *connector = debug->connector; + u32 bpc; + + if (connector->status == connector_status_connected) { + bpc = debug->link->test_video.test_bit_depth; + seq_printf(m, "hdisplay: %d\n", + debug->link->test_video.test_h_width); + seq_printf(m, "vdisplay: %d\n", + debug->link->test_video.test_v_height); + seq_printf(m, "bpc: %u\n", + dp_link_bit_depth_to_bpc(bpc)); + } else { + seq_puts(m, "0"); + } + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(dp_test_data); + +static int dp_test_type_show(struct seq_file *m, void *data) +{ + const struct dp_debug_private *debug = m->private; + const struct drm_connector *connector = debug->connector; + + if (connector->status == connector_status_connected) + seq_printf(m, "%02x", DP_TEST_LINK_VIDEO_PATTERN); + else + seq_puts(m, "0"); + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(dp_test_type); + +static ssize_t dp_test_active_write(struct file *file, + const char __user *ubuf, + size_t len, loff_t *offp) +{ + char *input_buffer; + int status = 0; + const struct dp_debug_private *debug; + const struct drm_connector *connector; + int val = 0; + + debug = ((struct seq_file *)file->private_data)->private; + connector = debug->connector; + + if (len == 0) + return 0; + + input_buffer = memdup_user_nul(ubuf, len); + if (IS_ERR(input_buffer)) + return PTR_ERR(input_buffer); + + DRM_DEBUG_DRIVER("Copied %d bytes from user\n", (unsigned int)len); + + if (connector->status == connector_status_connected) { + status = kstrtoint(input_buffer, 10, &val); + if (status < 0) { + kfree(input_buffer); + return status; + } + DRM_DEBUG_DRIVER("Got %d for test active\n", val); + /* To prevent erroneous activation of the compliance + * testing code, only accept an actual value of 1 here + */ + if (val == 1) + debug->panel->video_test = true; + else + debug->panel->video_test = false; + } + kfree(input_buffer); + + *offp += len; + return len; +} + +static int dp_test_active_show(struct seq_file *m, void *data) +{ + struct dp_debug_private *debug = m->private; + struct drm_connector *connector = debug->connector; + + if (connector->status == connector_status_connected) { + if (debug->panel->video_test) + seq_puts(m, "1"); + else + seq_puts(m, "0"); + } else { + seq_puts(m, "0"); + } + + return 0; +} + +static int dp_test_active_open(struct inode *inode, + struct file *file) +{ + return single_open(file, dp_test_active_show, + inode->i_private); +} + +static const struct file_operations test_active_fops = { + .owner = THIS_MODULE, + .open = dp_test_active_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, + .write = dp_test_active_write +}; + +static void dp_debug_init(struct dp_debug *dp_debug, struct drm_minor *minor) +{ + char path[64]; + struct dp_debug_private *debug = container_of(dp_debug, + struct dp_debug_private, dp_debug); + + snprintf(path, sizeof(path), "msm_dp-%s", debug->connector->name); + + debug->root = debugfs_create_dir(path, minor->debugfs_root); + + debugfs_create_file("dp_debug", 0444, debug->root, + debug, &dp_debug_fops); + + debugfs_create_file("msm_dp_test_active", 0444, + debug->root, + debug, &test_active_fops); + + debugfs_create_file("msm_dp_test_data", 0444, + debug->root, + debug, &dp_test_data_fops); + + debugfs_create_file("msm_dp_test_type", 0444, + debug->root, + debug, &dp_test_type_fops); +} + +struct dp_debug *dp_debug_get(struct device *dev, struct dp_panel *panel, + struct dp_usbpd *usbpd, struct dp_link *link, + struct drm_connector *connector, struct drm_minor *minor) +{ + struct dp_debug_private *debug; + struct dp_debug *dp_debug; + int rc; + + if (!dev || !panel || !usbpd || !link) { + DRM_ERROR("invalid input\n"); + rc = -EINVAL; + goto error; + } + + debug = devm_kzalloc(dev, sizeof(*debug), GFP_KERNEL); + if (!debug) { + rc = -ENOMEM; + goto error; + } + + debug->dp_debug.debug_en = false; + debug->usbpd = usbpd; + debug->link = link; + debug->panel = panel; + debug->dev = dev; + debug->drm_dev = minor->dev; + debug->connector = connector; + + dp_debug = &debug->dp_debug; + dp_debug->vdisplay = 0; + dp_debug->hdisplay = 0; + dp_debug->vrefresh = 0; + + dp_debug_init(dp_debug, minor); + + return dp_debug; + error: + return ERR_PTR(rc); +} + +static int dp_debug_deinit(struct dp_debug *dp_debug) +{ + struct dp_debug_private *debug; + + if (!dp_debug) + return -EINVAL; + + debug = container_of(dp_debug, struct dp_debug_private, dp_debug); + + debugfs_remove_recursive(debug->root); + + return 0; +} + +void dp_debug_put(struct dp_debug *dp_debug) +{ + struct dp_debug_private *debug; + + if (!dp_debug) + return; + + debug = container_of(dp_debug, struct dp_debug_private, dp_debug); + + dp_debug_deinit(dp_debug); + + devm_kfree(debug->dev, debug); +} -- cgit v1.2.3