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/core/firmware.c | 239 +++++++++++++++++++++++++++ 1 file changed, 239 insertions(+) create mode 100644 drivers/gpu/drm/nouveau/nvkm/core/firmware.c (limited to 'drivers/gpu/drm/nouveau/nvkm/core/firmware.c') diff --git a/drivers/gpu/drm/nouveau/nvkm/core/firmware.c b/drivers/gpu/drm/nouveau/nvkm/core/firmware.c new file mode 100644 index 000000000..91fb494d4 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/core/firmware.c @@ -0,0 +1,239 @@ +/* + * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved. + * + * 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 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 + +int +nvkm_firmware_load_name(const struct nvkm_subdev *subdev, const char *base, + const char *name, int ver, const struct firmware **pfw) +{ + char path[64]; + int ret; + + snprintf(path, sizeof(path), "%s%s", base, name); + ret = nvkm_firmware_get(subdev, path, ver, pfw); + if (ret < 0) + return ret; + + return 0; +} + +int +nvkm_firmware_load_blob(const struct nvkm_subdev *subdev, const char *base, + const char *name, int ver, struct nvkm_blob *blob) +{ + const struct firmware *fw; + int ret; + + ret = nvkm_firmware_load_name(subdev, base, name, ver, &fw); + if (ret == 0) { + blob->data = kmemdup(fw->data, fw->size, GFP_KERNEL); + blob->size = fw->size; + nvkm_firmware_put(fw); + if (!blob->data) + return -ENOMEM; + } + + return ret; +} + +/** + * nvkm_firmware_get - load firmware from the official nvidia/chip/ directory + * @subdev: subdevice that will use that firmware + * @fwname: name of firmware file to load + * @ver: firmware version to load + * @fw: firmware structure to load to + * + * Use this function to load firmware files in the form nvidia/chip/fwname.bin. + * Firmware files released by NVIDIA will always follow this format. + */ +int +nvkm_firmware_get(const struct nvkm_subdev *subdev, const char *fwname, int ver, + const struct firmware **fw) +{ + struct nvkm_device *device = subdev->device; + char f[64]; + char cname[16]; + int i; + + /* Convert device name to lowercase */ + strncpy(cname, device->chip->name, sizeof(cname)); + cname[sizeof(cname) - 1] = '\0'; + i = strlen(cname); + while (i) { + --i; + cname[i] = tolower(cname[i]); + } + + if (ver != 0) + snprintf(f, sizeof(f), "nvidia/%s/%s-%d.bin", cname, fwname, ver); + else + snprintf(f, sizeof(f), "nvidia/%s/%s.bin", cname, fwname); + + if (!firmware_request_nowarn(fw, f, device->dev)) { + nvkm_debug(subdev, "firmware \"%s\" loaded - %zu byte(s)\n", + f, (*fw)->size); + return 0; + } + + nvkm_debug(subdev, "firmware \"%s\" unavailable\n", f); + return -ENOENT; +} + +/* + * nvkm_firmware_put - release firmware loaded with nvkm_firmware_get + */ +void +nvkm_firmware_put(const struct firmware *fw) +{ + release_firmware(fw); +} + +#define nvkm_firmware_mem(p) container_of((p), struct nvkm_firmware, mem.memory) + +static int +nvkm_firmware_mem_map(struct nvkm_memory *memory, u64 offset, struct nvkm_vmm *vmm, + struct nvkm_vma *vma, void *argv, u32 argc) +{ + struct nvkm_firmware *fw = nvkm_firmware_mem(memory); + struct nvkm_vmm_map map = { + .memory = &fw->mem.memory, + .offset = offset, + .sgl = &fw->mem.sgl, + }; + + if (WARN_ON(fw->func->type != NVKM_FIRMWARE_IMG_DMA)) + return -ENOSYS; + + return nvkm_vmm_map(vmm, vma, argv, argc, &map); +} + +static u64 +nvkm_firmware_mem_size(struct nvkm_memory *memory) +{ + return sg_dma_len(&nvkm_firmware_mem(memory)->mem.sgl); +} + +static u64 +nvkm_firmware_mem_addr(struct nvkm_memory *memory) +{ + return nvkm_firmware_mem(memory)->phys; +} + +static u8 +nvkm_firmware_mem_page(struct nvkm_memory *memory) +{ + return PAGE_SHIFT; +} + +static enum nvkm_memory_target +nvkm_firmware_mem_target(struct nvkm_memory *memory) +{ + if (nvkm_firmware_mem(memory)->device->func->tegra) + return NVKM_MEM_TARGET_NCOH; + + return NVKM_MEM_TARGET_HOST; +} + +static void * +nvkm_firmware_mem_dtor(struct nvkm_memory *memory) +{ + return NULL; +} + +static const struct nvkm_memory_func +nvkm_firmware_mem = { + .dtor = nvkm_firmware_mem_dtor, + .target = nvkm_firmware_mem_target, + .page = nvkm_firmware_mem_page, + .addr = nvkm_firmware_mem_addr, + .size = nvkm_firmware_mem_size, + .map = nvkm_firmware_mem_map, +}; + +void +nvkm_firmware_dtor(struct nvkm_firmware *fw) +{ + struct nvkm_memory *memory = &fw->mem.memory; + + if (!fw->img) + return; + + switch (fw->func->type) { + case NVKM_FIRMWARE_IMG_RAM: + kfree(fw->img); + break; + case NVKM_FIRMWARE_IMG_DMA: + nvkm_memory_unref(&memory); + dma_free_coherent(fw->device->dev, sg_dma_len(&fw->mem.sgl), fw->img, fw->phys); + break; + default: + WARN_ON(1); + break; + } + + fw->img = NULL; +} + +int +nvkm_firmware_ctor(const struct nvkm_firmware_func *func, const char *name, + struct nvkm_device *device, const void *src, int len, struct nvkm_firmware *fw) +{ + fw->func = func; + fw->name = name; + fw->device = device; + fw->len = len; + + switch (fw->func->type) { + case NVKM_FIRMWARE_IMG_RAM: + fw->img = kmemdup(src, fw->len, GFP_KERNEL); + break; + case NVKM_FIRMWARE_IMG_DMA: { + dma_addr_t addr; + + len = ALIGN(fw->len, PAGE_SIZE); + + fw->img = dma_alloc_coherent(fw->device->dev, len, &addr, GFP_KERNEL); + if (fw->img) { + memcpy(fw->img, src, fw->len); + fw->phys = addr; + } + + sg_init_one(&fw->mem.sgl, fw->img, len); + sg_dma_address(&fw->mem.sgl) = fw->phys; + sg_dma_len(&fw->mem.sgl) = len; + } + break; + default: + WARN_ON(1); + return -EINVAL; + } + + if (!fw->img) + return -ENOMEM; + + nvkm_memory_ctor(&nvkm_firmware_mem, &fw->mem.memory); + return 0; +} -- cgit v1.2.3