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/i915/selftests/mock_gem_device.c | 251 +++++++++++++++++++++++ 1 file changed, 251 insertions(+) create mode 100644 drivers/gpu/drm/i915/selftests/mock_gem_device.c (limited to 'drivers/gpu/drm/i915/selftests/mock_gem_device.c') diff --git a/drivers/gpu/drm/i915/selftests/mock_gem_device.c b/drivers/gpu/drm/i915/selftests/mock_gem_device.c new file mode 100644 index 000000000..f6a7c0bd2 --- /dev/null +++ b/drivers/gpu/drm/i915/selftests/mock_gem_device.c @@ -0,0 +1,251 @@ +/* + * Copyright © 2016 Intel Corporation + * + * 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 (including the next + * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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 +#include +#include + +#include + +#include "gt/intel_gt.h" +#include "gt/intel_gt_requests.h" +#include "gt/mock_engine.h" +#include "intel_memory_region.h" +#include "intel_region_ttm.h" + +#include "mock_request.h" +#include "mock_gem_device.h" +#include "mock_gtt.h" +#include "mock_uncore.h" +#include "mock_region.h" + +#include "gem/selftests/mock_context.h" +#include "gem/selftests/mock_gem_object.h" + +void mock_device_flush(struct drm_i915_private *i915) +{ + struct intel_gt *gt = to_gt(i915); + struct intel_engine_cs *engine; + enum intel_engine_id id; + + do { + for_each_engine(engine, gt, id) + mock_engine_flush(engine); + } while (intel_gt_retire_requests_timeout(gt, MAX_SCHEDULE_TIMEOUT, + NULL)); +} + +static void mock_device_release(struct drm_device *dev) +{ + struct drm_i915_private *i915 = to_i915(dev); + + if (!i915->do_release) + goto out; + + mock_device_flush(i915); + intel_gt_driver_remove(to_gt(i915)); + + i915_gem_drain_workqueue(i915); + + mock_fini_ggtt(to_gt(i915)->ggtt); + destroy_workqueue(i915->wq); + + intel_region_ttm_device_fini(i915); + intel_gt_driver_late_release_all(i915); + intel_memory_regions_driver_release(i915); + + drm_mode_config_cleanup(&i915->drm); + +out: + i915_params_free(&i915->params); +} + +static const struct drm_driver mock_driver = { + .name = "mock", + .driver_features = DRIVER_GEM, + .release = mock_device_release, +}; + +static void release_dev(struct device *dev) +{ + struct pci_dev *pdev = to_pci_dev(dev); + + kfree(pdev); +} + +static int pm_domain_resume(struct device *dev) +{ + return pm_generic_runtime_resume(dev); +} + +static int pm_domain_suspend(struct device *dev) +{ + return pm_generic_runtime_suspend(dev); +} + +static struct dev_pm_domain pm_domain = { + .ops = { + .runtime_suspend = pm_domain_suspend, + .runtime_resume = pm_domain_resume, + }, +}; + +static void mock_gt_probe(struct drm_i915_private *i915) +{ + i915->gt[0] = &i915->gt0; + i915->gt[0]->name = "Mock GT"; +} + +struct drm_i915_private *mock_gem_device(void) +{ +#if IS_ENABLED(CONFIG_IOMMU_API) && defined(CONFIG_INTEL_IOMMU) + static struct dev_iommu fake_iommu = { .priv = (void *)-1 }; +#endif + struct drm_i915_private *i915; + struct pci_dev *pdev; + int ret; + + pdev = kzalloc(sizeof(*pdev), GFP_KERNEL); + if (!pdev) + return NULL; + device_initialize(&pdev->dev); + pdev->class = PCI_BASE_CLASS_DISPLAY << 16; + pdev->dev.release = release_dev; + dev_set_name(&pdev->dev, "mock"); + dma_coerce_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); + +#if IS_ENABLED(CONFIG_IOMMU_API) && defined(CONFIG_INTEL_IOMMU) + /* HACK to disable iommu for the fake device; force identity mapping */ + pdev->dev.iommu = &fake_iommu; +#endif + if (!devres_open_group(&pdev->dev, NULL, GFP_KERNEL)) { + put_device(&pdev->dev); + return NULL; + } + + i915 = devm_drm_dev_alloc(&pdev->dev, &mock_driver, + struct drm_i915_private, drm); + if (IS_ERR(i915)) { + pr_err("Failed to allocate mock GEM device: err=%ld\n", PTR_ERR(i915)); + devres_release_group(&pdev->dev, NULL); + put_device(&pdev->dev); + + return NULL; + } + + pci_set_drvdata(pdev, i915); + + dev_pm_domain_set(&pdev->dev, &pm_domain); + pm_runtime_enable(&pdev->dev); + pm_runtime_dont_use_autosuspend(&pdev->dev); + if (pm_runtime_enabled(&pdev->dev)) + WARN_ON(pm_runtime_get_sync(&pdev->dev)); + + + i915_params_copy(&i915->params, &i915_modparams); + + intel_runtime_pm_init_early(&i915->runtime_pm); + /* wakeref tracking has significant overhead */ + i915->runtime_pm.no_wakeref_tracking = true; + + /* Using the global GTT may ask questions about KMS users, so prepare */ + drm_mode_config_init(&i915->drm); + + RUNTIME_INFO(i915)->graphics.ip.ver = -1; + + RUNTIME_INFO(i915)->page_sizes = + I915_GTT_PAGE_SIZE_4K | + I915_GTT_PAGE_SIZE_64K | + I915_GTT_PAGE_SIZE_2M; + + RUNTIME_INFO(i915)->memory_regions = REGION_SMEM; + intel_memory_regions_hw_probe(i915); + + spin_lock_init(&i915->gpu_error.lock); + + i915_gem_init__mm(i915); + intel_root_gt_init_early(i915); + mock_uncore_init(&i915->uncore, i915); + atomic_inc(&to_gt(i915)->wakeref.count); /* disable; no hw support */ + to_gt(i915)->awake = -ENODEV; + mock_gt_probe(i915); + + ret = intel_region_ttm_device_init(i915); + if (ret) + goto err_ttm; + + i915->wq = alloc_ordered_workqueue("mock", 0); + if (!i915->wq) + goto err_drv; + + mock_init_contexts(i915); + + /* allocate the ggtt */ + ret = intel_gt_assign_ggtt(to_gt(i915)); + if (ret) + goto err_unlock; + + mock_init_ggtt(to_gt(i915)); + to_gt(i915)->vm = i915_vm_get(&to_gt(i915)->ggtt->vm); + + RUNTIME_INFO(i915)->platform_engine_mask = BIT(0); + to_gt(i915)->info.engine_mask = BIT(0); + + to_gt(i915)->engine[RCS0] = mock_engine(i915, "mock", RCS0); + if (!to_gt(i915)->engine[RCS0]) + goto err_unlock; + + if (mock_engine_init(to_gt(i915)->engine[RCS0])) + goto err_context; + + __clear_bit(I915_WEDGED, &to_gt(i915)->reset.flags); + intel_engines_driver_register(i915); + + i915->do_release = true; + ida_init(&i915->selftest.mock_region_instances); + + return i915; + +err_context: + intel_gt_driver_remove(to_gt(i915)); +err_unlock: + destroy_workqueue(i915->wq); +err_drv: + intel_region_ttm_device_fini(i915); +err_ttm: + intel_gt_driver_late_release_all(i915); + intel_memory_regions_driver_release(i915); + drm_mode_config_cleanup(&i915->drm); + mock_destroy_device(i915); + + return NULL; +} + +void mock_destroy_device(struct drm_i915_private *i915) +{ + struct device *dev = i915->drm.dev; + + devres_release_group(dev, NULL); + put_device(dev); +} -- cgit v1.2.3