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/pci/agp.c | 175 ++++++++++++++++++++++++++ 1 file changed, 175 insertions(+) create mode 100644 drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c') diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c new file mode 100644 index 000000000..385a90f91 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/pci/agp.c @@ -0,0 +1,175 @@ +/* + * Copyright 2015 Nouveau Project + * + * 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 "agp.h" +#ifdef __NVKM_PCI_AGP_H__ +#include + +struct nvkm_device_agp_quirk { + u16 hostbridge_vendor; + u16 hostbridge_device; + u16 chip_vendor; + u16 chip_device; + int mode; +}; + +static const struct nvkm_device_agp_quirk +nvkm_device_agp_quirks[] = { + /* VIA Apollo PRO133x / GeForce FX 5600 Ultra - fdo#20341 */ + { PCI_VENDOR_ID_VIA, 0x0691, PCI_VENDOR_ID_NVIDIA, 0x0311, 2 }, + /* SiS 761 does not support AGP cards, use PCI mode */ + { PCI_VENDOR_ID_SI, 0x0761, PCI_ANY_ID, PCI_ANY_ID, 0 }, + {}, +}; + +void +nvkm_agp_fini(struct nvkm_pci *pci) +{ + if (pci->agp.acquired) { + agp_backend_release(pci->agp.bridge); + pci->agp.acquired = false; + } +} + +/* Ensure AGP controller is in a consistent state in case we need to + * execute the VBIOS DEVINIT scripts. + */ +void +nvkm_agp_preinit(struct nvkm_pci *pci) +{ + struct nvkm_device *device = pci->subdev.device; + u32 mode = nvkm_pci_rd32(pci, 0x004c); + u32 save[2]; + + /* First of all, disable fast writes, otherwise if it's already + * enabled in the AGP bridge and we disable the card's AGP + * controller we might be locking ourselves out of it. + */ + if ((mode | pci->agp.mode) & PCI_AGP_COMMAND_FW) { + mode = pci->agp.mode & ~PCI_AGP_COMMAND_FW; + agp_enable(pci->agp.bridge, mode); + } + + /* clear busmaster bit, and disable AGP */ + save[0] = nvkm_pci_rd32(pci, 0x0004); + nvkm_pci_wr32(pci, 0x0004, save[0] & ~0x00000004); + nvkm_pci_wr32(pci, 0x004c, 0x00000000); + + /* reset PGRAPH, PFIFO and PTIMER */ + save[1] = nvkm_mask(device, 0x000200, 0x00011100, 0x00000000); + nvkm_mask(device, 0x000200, 0x00011100, save[1]); + + /* and restore busmaster bit (gives effect of resetting AGP) */ + nvkm_pci_wr32(pci, 0x0004, save[0]); +} + +int +nvkm_agp_init(struct nvkm_pci *pci) +{ + if (!agp_backend_acquire(pci->pdev)) { + nvkm_error(&pci->subdev, "failed to acquire agp\n"); + return -ENODEV; + } + + agp_enable(pci->agp.bridge, pci->agp.mode); + pci->agp.acquired = true; + return 0; +} + +void +nvkm_agp_dtor(struct nvkm_pci *pci) +{ + arch_phys_wc_del(pci->agp.mtrr); +} + +void +nvkm_agp_ctor(struct nvkm_pci *pci) +{ + const struct nvkm_device_agp_quirk *quirk = nvkm_device_agp_quirks; + struct nvkm_subdev *subdev = &pci->subdev; + struct nvkm_device *device = subdev->device; + struct agp_kern_info info; + int mode = -1; + +#ifdef __powerpc__ + /* Disable AGP by default on all PowerPC machines for now -- At + * least some UniNorth-2 AGP bridges are known to be broken: + * DMA from the host to the card works just fine, but writeback + * from the card to the host goes straight to memory + * untranslated bypassing that GATT somehow, making them quite + * painful to deal with... + */ + mode = 0; +#endif + mode = nvkm_longopt(device->cfgopt, "NvAGP", mode); + + /* acquire bridge temporarily, so that we can copy its info */ + if (!(pci->agp.bridge = agp_backend_acquire(pci->pdev))) { + nvkm_warn(subdev, "failed to acquire agp\n"); + return; + } + agp_copy_info(pci->agp.bridge, &info); + agp_backend_release(pci->agp.bridge); + + pci->agp.mode = info.mode; + pci->agp.base = info.aper_base; + pci->agp.size = info.aper_size * 1024 * 1024; + pci->agp.cma = info.cant_use_aperture; + pci->agp.mtrr = -1; + + /* determine if bridge + chipset combination needs a workaround */ + while (quirk->hostbridge_vendor) { + if (info.device->vendor == quirk->hostbridge_vendor && + info.device->device == quirk->hostbridge_device && + (quirk->chip_vendor == (u16)PCI_ANY_ID || + pci->pdev->vendor == quirk->chip_vendor) && + (quirk->chip_device == (u16)PCI_ANY_ID || + pci->pdev->device == quirk->chip_device)) { + nvkm_info(subdev, "forcing default agp mode to %dX, " + "use NvAGP= to override\n", + quirk->mode); + mode = quirk->mode; + break; + } + quirk++; + } + + /* apply quirk / user-specified mode */ + if (mode >= 1) { + if (pci->agp.mode & 0x00000008) + mode /= 4; /* AGPv3 */ + pci->agp.mode &= ~0x00000007; + pci->agp.mode |= (mode & 0x7); + } else + if (mode == 0) { + pci->agp.bridge = NULL; + return; + } + + /* fast writes appear to be broken on nv18, they make the card + * lock up randomly. + */ + if (device->chipset == 0x18) + pci->agp.mode &= ~PCI_AGP_COMMAND_FW; + + pci->agp.mtrr = arch_phys_wc_add(pci->agp.base, pci->agp.size); +} +#endif -- cgit v1.2.3