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/acr/base.c | 446 +++++++++++++++++++++++++ 1 file changed, 446 insertions(+) create mode 100644 drivers/gpu/drm/nouveau/nvkm/subdev/acr/base.c (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/acr/base.c') diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/acr/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/base.c new file mode 100644 index 000000000..795f3a649 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/acr/base.c @@ -0,0 +1,446 @@ +/* + * Copyright 2019 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. + */ +#include "priv.h" + +#include +#include +#include +#include +#include +#include +#include + +static struct nvkm_acr_hsfw * +nvkm_acr_hsfw_find(struct nvkm_acr *acr, const char *name) +{ + struct nvkm_acr_hsfw *hsfw; + + list_for_each_entry(hsfw, &acr->hsfw, head) { + if (!strcmp(hsfw->fw.fw.name, name)) + return hsfw; + } + + return NULL; +} + +int +nvkm_acr_hsfw_boot(struct nvkm_acr *acr, const char *name) +{ + struct nvkm_subdev *subdev = &acr->subdev; + struct nvkm_acr_hsfw *hsfw; + + hsfw = nvkm_acr_hsfw_find(acr, name); + if (!hsfw) + return -EINVAL; + + return nvkm_falcon_fw_boot(&hsfw->fw, subdev, true, NULL, NULL, + hsfw->boot_mbox0, hsfw->intr_clear); +} + +static struct nvkm_acr_lsf * +nvkm_acr_rtos(struct nvkm_acr *acr) +{ + struct nvkm_acr_lsf *lsf; + + if (acr) { + list_for_each_entry(lsf, &acr->lsf, head) { + if (lsf->func->bootstrap_falcon) + return lsf; + } + } + + return NULL; +} + +static void +nvkm_acr_unload(struct nvkm_acr *acr) +{ + if (acr->done) { + if (acr->rtos) { + nvkm_subdev_unref(acr->rtos->falcon->owner); + acr->rtos = NULL; + } + + nvkm_acr_hsfw_boot(acr, "unload"); + acr->done = false; + } +} + +static int +nvkm_acr_load(struct nvkm_acr *acr) +{ + struct nvkm_subdev *subdev = &acr->subdev; + struct nvkm_acr_lsf *rtos = nvkm_acr_rtos(acr); + u64 start, limit; + int ret; + + if (list_empty(&acr->lsf)) { + nvkm_debug(subdev, "No LSF(s) present.\n"); + return 0; + } + + ret = acr->func->init(acr); + if (ret) + return ret; + + acr->func->wpr_check(acr, &start, &limit); + + if (start != acr->wpr_start || limit != acr->wpr_end) { + nvkm_error(subdev, "WPR not configured as expected: " + "%016llx-%016llx vs %016llx-%016llx\n", + acr->wpr_start, acr->wpr_end, start, limit); + return -EIO; + } + + acr->done = true; + + if (rtos) { + ret = nvkm_subdev_ref(rtos->falcon->owner); + if (ret) + return ret; + + acr->rtos = rtos; + } + + return ret; +} + +static int +nvkm_acr_reload(struct nvkm_acr *acr) +{ + nvkm_acr_unload(acr); + return nvkm_acr_load(acr); +} + +int +nvkm_acr_bootstrap_falcons(struct nvkm_device *device, unsigned long mask) +{ + struct nvkm_acr *acr = device->acr; + struct nvkm_acr_lsf *rtos = nvkm_acr_rtos(acr); + unsigned long id; + + /* If there's no LS FW managing bootstrapping of other LS falcons, + * we depend on the HS firmware being able to do it instead. + */ + if (!rtos) { + /* Which isn't possible everywhere... */ + if ((mask & acr->func->bootstrap_falcons) == mask) { + int ret = nvkm_acr_reload(acr); + if (ret) + return ret; + + return acr->done ? 0 : -EINVAL; + } + return -ENOSYS; + } + + if ((mask & rtos->func->bootstrap_falcons) != mask) + return -ENOSYS; + + if (rtos->func->bootstrap_multiple_falcons) + return rtos->func->bootstrap_multiple_falcons(rtos->falcon, mask); + + for_each_set_bit(id, &mask, NVKM_ACR_LSF_NUM) { + int ret = rtos->func->bootstrap_falcon(rtos->falcon, id); + if (ret) + return ret; + } + + return 0; +} + +bool +nvkm_acr_managed_falcon(struct nvkm_device *device, enum nvkm_acr_lsf_id id) +{ + struct nvkm_acr *acr = device->acr; + + if (acr) { + if (acr->managed_falcons & BIT_ULL(id)) + return true; + } + + return false; +} + +static int +nvkm_acr_fini(struct nvkm_subdev *subdev, bool suspend) +{ + if (!subdev->use.enabled) + return 0; + + nvkm_acr_unload(nvkm_acr(subdev)); + return 0; +} + +static int +nvkm_acr_init(struct nvkm_subdev *subdev) +{ + struct nvkm_acr *acr = nvkm_acr(subdev); + + if (!nvkm_acr_rtos(acr)) + return 0; + + return nvkm_acr_load(acr); +} + +static void +nvkm_acr_cleanup(struct nvkm_acr *acr) +{ + nvkm_acr_lsfw_del_all(acr); + + nvkm_firmware_put(acr->wpr_fw); + acr->wpr_fw = NULL; +} + +static int +nvkm_acr_oneinit(struct nvkm_subdev *subdev) +{ + struct nvkm_device *device = subdev->device; + struct nvkm_acr *acr = nvkm_acr(subdev); + struct nvkm_acr_hsfw *hsfw; + struct nvkm_acr_lsfw *lsfw, *lsft; + struct nvkm_acr_lsf *lsf, *rtos; + struct nvkm_falcon *falcon; + u32 wpr_size = 0; + u64 falcons; + int ret, i; + + if (list_empty(&acr->hsfw)) { + nvkm_debug(subdev, "No HSFW(s)\n"); + nvkm_acr_cleanup(acr); + return 0; + } + + /* Determine layout/size of WPR image up-front, as we need to know + * it to allocate memory before we begin constructing it. + */ + list_for_each_entry_safe(lsfw, lsft, &acr->lsfw, head) { + /* Cull unknown falcons that are present in WPR image. */ + if (acr->wpr_fw) { + if (!lsfw->func) { + nvkm_acr_lsfw_del(lsfw); + continue; + } + + wpr_size = acr->wpr_fw->size; + } + + /* Ensure we've fetched falcon configuration. */ + ret = nvkm_falcon_get(lsfw->falcon, subdev); + if (ret) + return ret; + + nvkm_falcon_put(lsfw->falcon, subdev); + + if (!(lsf = kmalloc(sizeof(*lsf), GFP_KERNEL))) + return -ENOMEM; + lsf->func = lsfw->func; + lsf->falcon = lsfw->falcon; + lsf->id = lsfw->id; + list_add_tail(&lsf->head, &acr->lsf); + acr->managed_falcons |= BIT_ULL(lsf->id); + } + + /* Ensure the falcon that'll provide ACR functions is booted first. */ + rtos = nvkm_acr_rtos(acr); + if (rtos) { + falcons = rtos->func->bootstrap_falcons; + list_move(&rtos->head, &acr->lsf); + } else { + falcons = acr->func->bootstrap_falcons; + } + + /* Cull falcons that can't be bootstrapped, or the HSFW can fail to + * boot and leave the GPU in a weird state. + */ + list_for_each_entry_safe(lsfw, lsft, &acr->lsfw, head) { + if (!(falcons & BIT_ULL(lsfw->id))) { + nvkm_warn(subdev, "%s falcon cannot be bootstrapped\n", + nvkm_acr_lsf_id(lsfw->id)); + nvkm_acr_lsfw_del(lsfw); + } + } + + if (!acr->wpr_fw || acr->wpr_comp) + wpr_size = acr->func->wpr_layout(acr); + + /* Allocate/Locate WPR + fill ucode blob pointer. + * + * dGPU: allocate WPR + shadow blob + * Tegra: locate WPR with regs, ensure size is sufficient, + * allocate ucode blob. + */ + ret = acr->func->wpr_alloc(acr, wpr_size); + if (ret) + return ret; + + nvkm_debug(subdev, "WPR region is from 0x%llx-0x%llx (shadow 0x%llx)\n", + acr->wpr_start, acr->wpr_end, acr->shadow_start); + + /* Write WPR to ucode blob. */ + nvkm_kmap(acr->wpr); + if (acr->wpr_fw && !acr->wpr_comp) + nvkm_wobj(acr->wpr, 0, acr->wpr_fw->data, acr->wpr_fw->size); + + if (!acr->wpr_fw || acr->wpr_comp) + acr->func->wpr_build(acr, rtos); + acr->func->wpr_patch(acr, (s64)acr->wpr_start - acr->wpr_prev); + + if (acr->wpr_fw && acr->wpr_comp) { + nvkm_kmap(acr->wpr); + for (i = 0; i < acr->wpr_fw->size; i += 4) { + u32 us = nvkm_ro32(acr->wpr, i); + u32 fw = ((u32 *)acr->wpr_fw->data)[i/4]; + if (fw != us) { + nvkm_warn(subdev, "%08x: %08x %08x\n", + i, us, fw); + } + } + return -EINVAL; + } + nvkm_done(acr->wpr); + + /* Allocate instance block for ACR-related stuff. */ + ret = nvkm_memory_new(device, NVKM_MEM_TARGET_INST, 0x1000, 0, true, + &acr->inst); + if (ret) + return ret; + + ret = nvkm_vmm_new(device, 0, 0, NULL, 0, NULL, "acr", &acr->vmm); + if (ret) + return ret; + + acr->vmm->debug = acr->subdev.debug; + + ret = nvkm_vmm_join(acr->vmm, acr->inst); + if (ret) + return ret; + + /* Load HS firmware blobs into ACR VMM. */ + list_for_each_entry(hsfw, &acr->hsfw, head) { + switch (hsfw->falcon_id) { + case NVKM_ACR_HSF_PMU : falcon = &device->pmu->falcon; break; + case NVKM_ACR_HSF_SEC2: falcon = &device->sec2->falcon; break; + case NVKM_ACR_HSF_GSP : falcon = &device->gsp->falcon; break; + default: + WARN_ON(1); + return -EINVAL; + } + + ret = nvkm_falcon_fw_oneinit(&hsfw->fw, falcon, acr->vmm, acr->inst); + if (ret) + return ret; + } + + /* Kill temporary data. */ + nvkm_acr_cleanup(acr); + return 0; +} + +static void * +nvkm_acr_dtor(struct nvkm_subdev *subdev) +{ + struct nvkm_acr *acr = nvkm_acr(subdev); + struct nvkm_acr_hsfw *hsfw, *hsft; + struct nvkm_acr_lsf *lsf, *lst; + + list_for_each_entry_safe(hsfw, hsft, &acr->hsfw, head) { + nvkm_falcon_fw_dtor(&hsfw->fw); + list_del(&hsfw->head); + kfree(hsfw); + } + + nvkm_vmm_part(acr->vmm, acr->inst); + nvkm_vmm_unref(&acr->vmm); + nvkm_memory_unref(&acr->inst); + + nvkm_memory_unref(&acr->wpr); + + list_for_each_entry_safe(lsf, lst, &acr->lsf, head) { + list_del(&lsf->head); + kfree(lsf); + } + + nvkm_acr_cleanup(acr); + return acr; +} + +static const struct nvkm_subdev_func +nvkm_acr = { + .dtor = nvkm_acr_dtor, + .oneinit = nvkm_acr_oneinit, + .init = nvkm_acr_init, + .fini = nvkm_acr_fini, +}; + +static int +nvkm_acr_ctor_wpr(struct nvkm_acr *acr, int ver) +{ + struct nvkm_subdev *subdev = &acr->subdev; + struct nvkm_device *device = subdev->device; + int ret; + + ret = nvkm_firmware_get(subdev, "acr/wpr", ver, &acr->wpr_fw); + if (ret < 0) + return ret; + + /* Pre-add LSFs in the order they appear in the FW WPR image so that + * we're able to do a binary comparison with our own generator. + */ + ret = acr->func->wpr_parse(acr); + if (ret) + return ret; + + acr->wpr_comp = nvkm_boolopt(device->cfgopt, "NvAcrWprCompare", false); + acr->wpr_prev = nvkm_longopt(device->cfgopt, "NvAcrWprPrevAddr", 0); + return 0; +} + +int +nvkm_acr_new_(const struct nvkm_acr_fwif *fwif, struct nvkm_device *device, + enum nvkm_subdev_type type, int inst, struct nvkm_acr **pacr) +{ + struct nvkm_acr *acr; + long wprfw; + + if (!(acr = *pacr = kzalloc(sizeof(*acr), GFP_KERNEL))) + return -ENOMEM; + nvkm_subdev_ctor(&nvkm_acr, device, type, inst, &acr->subdev); + INIT_LIST_HEAD(&acr->hsfw); + INIT_LIST_HEAD(&acr->lsfw); + INIT_LIST_HEAD(&acr->lsf); + + fwif = nvkm_firmware_load(&acr->subdev, fwif, "Acr", acr); + if (IS_ERR(fwif)) + return PTR_ERR(fwif); + + acr->func = fwif->func; + + wprfw = nvkm_longopt(device->cfgopt, "NvAcrWpr", -1); + if (wprfw >= 0) { + int ret = nvkm_acr_ctor_wpr(acr, wprfw); + if (ret) + return ret; + } + + return 0; +} -- cgit v1.2.3