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/engine/disp/base.c | 394 ++++++++++++++++++++++++ 1 file changed, 394 insertions(+) create mode 100644 drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c (limited to 'drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c') diff --git a/drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c b/drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c new file mode 100644 index 000000000..73104b59f --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/base.c @@ -0,0 +1,394 @@ +/* + * Copyright 2013 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 + */ +#include "priv.h" +#include "conn.h" +#include "dp.h" +#include "head.h" +#include "ior.h" +#include "outp.h" + +#include +#include +#include +#include + +#include +#include +#include +#include + +static void +nvkm_disp_vblank_fini(struct nvkm_event *event, int type, int id) +{ + struct nvkm_disp *disp = container_of(event, typeof(*disp), vblank); + struct nvkm_head *head = nvkm_head_find(disp, id); + if (head) + head->func->vblank_put(head); +} + +static void +nvkm_disp_vblank_init(struct nvkm_event *event, int type, int id) +{ + struct nvkm_disp *disp = container_of(event, typeof(*disp), vblank); + struct nvkm_head *head = nvkm_head_find(disp, id); + if (head) + head->func->vblank_get(head); +} + +static const struct nvkm_event_func +nvkm_disp_vblank_func = { + .init = nvkm_disp_vblank_init, + .fini = nvkm_disp_vblank_fini, +}; + +void +nvkm_disp_vblank(struct nvkm_disp *disp, int head) +{ + nvkm_event_ntfy(&disp->vblank, head, NVKM_DISP_HEAD_EVENT_VBLANK); +} + +static int +nvkm_disp_class_new(struct nvkm_device *device, + const struct nvkm_oclass *oclass, void *data, u32 size, + struct nvkm_object **pobject) +{ + return nvkm_udisp_new(oclass, data, size, pobject); +} + +static const struct nvkm_device_oclass +nvkm_disp_sclass = { + .ctor = nvkm_disp_class_new, +}; + +static int +nvkm_disp_class_get(struct nvkm_oclass *oclass, int index, + const struct nvkm_device_oclass **class) +{ + struct nvkm_disp *disp = nvkm_disp(oclass->engine); + if (index == 0) { + oclass->base = disp->func->root; + *class = &nvkm_disp_sclass; + return 0; + } + return 1; +} + +static void +nvkm_disp_intr(struct nvkm_engine *engine) +{ + struct nvkm_disp *disp = nvkm_disp(engine); + disp->func->intr(disp); +} + +static int +nvkm_disp_fini(struct nvkm_engine *engine, bool suspend) +{ + struct nvkm_disp *disp = nvkm_disp(engine); + struct nvkm_conn *conn; + struct nvkm_outp *outp; + + if (disp->func->fini) + disp->func->fini(disp); + + list_for_each_entry(outp, &disp->outps, head) { + nvkm_outp_fini(outp); + } + + list_for_each_entry(conn, &disp->conns, head) { + nvkm_conn_fini(conn); + } + + return 0; +} + +static int +nvkm_disp_init(struct nvkm_engine *engine) +{ + struct nvkm_disp *disp = nvkm_disp(engine); + struct nvkm_conn *conn; + struct nvkm_outp *outp; + struct nvkm_ior *ior; + + list_for_each_entry(conn, &disp->conns, head) { + nvkm_conn_init(conn); + } + + list_for_each_entry(outp, &disp->outps, head) { + nvkm_outp_init(outp); + } + + if (disp->func->init) { + int ret = disp->func->init(disp); + if (ret) + return ret; + } + + /* Set 'normal' (ie. when it's attached to a head) state for + * each output resource to 'fully enabled'. + */ + list_for_each_entry(ior, &disp->iors, head) { + ior->func->power(ior, true, true, true, true, true); + } + + return 0; +} + +static int +nvkm_disp_oneinit(struct nvkm_engine *engine) +{ + struct nvkm_disp *disp = nvkm_disp(engine); + struct nvkm_subdev *subdev = &disp->engine.subdev; + struct nvkm_bios *bios = subdev->device->bios; + struct nvkm_outp *outp, *outt, *pair; + struct nvkm_conn *conn; + struct nvkm_head *head; + struct nvkm_ior *ior; + struct nvbios_connE connE; + struct dcb_output dcbE; + u8 hpd = 0, ver, hdr; + u32 data; + int ret, i; + + /* Create output path objects for each VBIOS display path. */ + i = -1; + while ((data = dcb_outp_parse(bios, ++i, &ver, &hdr, &dcbE))) { + if (ver < 0x40) /* No support for chipsets prior to NV50. */ + break; + if (dcbE.type == DCB_OUTPUT_UNUSED) + continue; + if (dcbE.type == DCB_OUTPUT_EOL) + break; + outp = NULL; + + switch (dcbE.type) { + case DCB_OUTPUT_ANALOG: + case DCB_OUTPUT_TV: + case DCB_OUTPUT_TMDS: + case DCB_OUTPUT_LVDS: + ret = nvkm_outp_new(disp, i, &dcbE, &outp); + break; + case DCB_OUTPUT_DP: + ret = nvkm_dp_new(disp, i, &dcbE, &outp); + break; + case DCB_OUTPUT_WFD: + /* No support for WFD yet. */ + ret = -ENODEV; + continue; + default: + nvkm_warn(subdev, "dcb %d type %d unknown\n", + i, dcbE.type); + continue; + } + + if (ret) { + if (outp) { + if (ret != -ENODEV) + OUTP_ERR(outp, "ctor failed: %d", ret); + else + OUTP_DBG(outp, "not supported"); + nvkm_outp_del(&outp); + continue; + } + nvkm_error(subdev, "failed to create outp %d\n", i); + continue; + } + + list_add_tail(&outp->head, &disp->outps); + hpd = max(hpd, (u8)(dcbE.connector + 1)); + } + + /* Create connector objects based on available output paths. */ + list_for_each_entry_safe(outp, outt, &disp->outps, head) { + /* VBIOS data *should* give us the most useful information. */ + data = nvbios_connEp(bios, outp->info.connector, &ver, &hdr, + &connE); + + /* No bios connector data... */ + if (!data) { + /* Heuristic: anything with the same ccb index is + * considered to be on the same connector, any + * output path without an associated ccb entry will + * be put on its own connector. + */ + int ccb_index = outp->info.i2c_index; + if (ccb_index != 0xf) { + list_for_each_entry(pair, &disp->outps, head) { + if (pair->info.i2c_index == ccb_index) { + outp->conn = pair->conn; + break; + } + } + } + + /* Connector shared with another output path. */ + if (outp->conn) + continue; + + memset(&connE, 0x00, sizeof(connE)); + connE.type = DCB_CONNECTOR_NONE; + i = -1; + } else { + i = outp->info.connector; + } + + /* Check that we haven't already created this connector. */ + list_for_each_entry(conn, &disp->conns, head) { + if (conn->index == outp->info.connector) { + outp->conn = conn; + break; + } + } + + if (outp->conn) + continue; + + /* Apparently we need to create a new one! */ + ret = nvkm_conn_new(disp, i, &connE, &outp->conn); + if (ret) { + nvkm_error(subdev, "failed to create outp %d conn: %d\n", outp->index, ret); + nvkm_conn_del(&outp->conn); + list_del(&outp->head); + nvkm_outp_del(&outp); + continue; + } + + list_add_tail(&outp->conn->head, &disp->conns); + } + + if (disp->func->oneinit) { + ret = disp->func->oneinit(disp); + if (ret) + return ret; + } + + /* Enforce identity-mapped SOR assignment for panels, which have + * certain bits (ie. backlight controls) wired to a specific SOR. + */ + list_for_each_entry(outp, &disp->outps, head) { + if (outp->conn->info.type == DCB_CONNECTOR_LVDS || + outp->conn->info.type == DCB_CONNECTOR_eDP) { + ior = nvkm_ior_find(disp, SOR, ffs(outp->info.or) - 1); + if (!WARN_ON(!ior)) + ior->identity = true; + outp->identity = true; + } + } + + i = 0; + list_for_each_entry(head, &disp->heads, head) + i = max(i, head->id + 1); + + return nvkm_event_init(&nvkm_disp_vblank_func, subdev, 1, i, &disp->vblank); +} + +static void * +nvkm_disp_dtor(struct nvkm_engine *engine) +{ + struct nvkm_disp *disp = nvkm_disp(engine); + struct nvkm_conn *conn; + struct nvkm_outp *outp; + struct nvkm_ior *ior; + struct nvkm_head *head; + void *data = disp; + + nvkm_ramht_del(&disp->ramht); + nvkm_gpuobj_del(&disp->inst); + + nvkm_event_fini(&disp->uevent); + + if (disp->super.wq) { + destroy_workqueue(disp->super.wq); + mutex_destroy(&disp->super.mutex); + } + + nvkm_event_fini(&disp->vblank); + + while (!list_empty(&disp->conns)) { + conn = list_first_entry(&disp->conns, typeof(*conn), head); + list_del(&conn->head); + nvkm_conn_del(&conn); + } + + while (!list_empty(&disp->outps)) { + outp = list_first_entry(&disp->outps, typeof(*outp), head); + list_del(&outp->head); + nvkm_outp_del(&outp); + } + + while (!list_empty(&disp->iors)) { + ior = list_first_entry(&disp->iors, typeof(*ior), head); + nvkm_ior_del(&ior); + } + + while (!list_empty(&disp->heads)) { + head = list_first_entry(&disp->heads, typeof(*head), head); + nvkm_head_del(&head); + } + + return data; +} + +static const struct nvkm_engine_func +nvkm_disp = { + .dtor = nvkm_disp_dtor, + .oneinit = nvkm_disp_oneinit, + .init = nvkm_disp_init, + .fini = nvkm_disp_fini, + .intr = nvkm_disp_intr, + .base.sclass = nvkm_disp_class_get, +}; + +int +nvkm_disp_new_(const struct nvkm_disp_func *func, struct nvkm_device *device, + enum nvkm_subdev_type type, int inst, struct nvkm_disp **pdisp) +{ + struct nvkm_disp *disp; + int ret; + + if (!(disp = *pdisp = kzalloc(sizeof(**pdisp), GFP_KERNEL))) + return -ENOMEM; + + disp->func = func; + INIT_LIST_HEAD(&disp->heads); + INIT_LIST_HEAD(&disp->iors); + INIT_LIST_HEAD(&disp->outps); + INIT_LIST_HEAD(&disp->conns); + spin_lock_init(&disp->client.lock); + + ret = nvkm_engine_ctor(&nvkm_disp, device, type, inst, true, &disp->engine); + if (ret) + return ret; + + if (func->super) { + disp->super.wq = create_singlethread_workqueue("nvkm-disp"); + if (!disp->super.wq) + return -ENOMEM; + + INIT_WORK(&disp->super.work, func->super); + mutex_init(&disp->super.mutex); + } + + return nvkm_event_init(func->uevent, &disp->engine.subdev, 1, ARRAY_SIZE(disp->chan), + &disp->uevent); +} -- cgit v1.2.3