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/media/platform/qcom/venus/firmware.c | 351 +++++++++++++++++++++++++++ 1 file changed, 351 insertions(+) create mode 100644 drivers/media/platform/qcom/venus/firmware.c (limited to 'drivers/media/platform/qcom/venus/firmware.c') diff --git a/drivers/media/platform/qcom/venus/firmware.c b/drivers/media/platform/qcom/venus/firmware.c new file mode 100644 index 000000000..142d4c740 --- /dev/null +++ b/drivers/media/platform/qcom/venus/firmware.c @@ -0,0 +1,351 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (C) 2017 Linaro Ltd. + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "core.h" +#include "firmware.h" +#include "hfi_venus_io.h" + +#define VENUS_PAS_ID 9 +#define VENUS_FW_MEM_SIZE (6 * SZ_1M) +#define VENUS_FW_START_ADDR 0x0 + +static void venus_reset_cpu(struct venus_core *core) +{ + u32 fw_size = core->fw.mapped_mem_size; + void __iomem *wrapper_base; + + if (IS_V6(core)) + wrapper_base = core->wrapper_tz_base; + else + wrapper_base = core->wrapper_base; + + writel(0, wrapper_base + WRAPPER_FW_START_ADDR); + writel(fw_size, wrapper_base + WRAPPER_FW_END_ADDR); + writel(0, wrapper_base + WRAPPER_CPA_START_ADDR); + writel(fw_size, wrapper_base + WRAPPER_CPA_END_ADDR); + writel(0, wrapper_base + WRAPPER_NONPIX_START_ADDR); + writel(0, wrapper_base + WRAPPER_NONPIX_END_ADDR); + + if (IS_V6(core)) { + /* Bring XTSS out of reset */ + writel(0, wrapper_base + WRAPPER_TZ_XTSS_SW_RESET); + } else { + writel(0x0, wrapper_base + WRAPPER_CPU_CGC_DIS); + writel(0x0, wrapper_base + WRAPPER_CPU_CLOCK_CONFIG); + + /* Bring ARM9 out of reset */ + writel(0, wrapper_base + WRAPPER_A9SS_SW_RESET); + } +} + +int venus_set_hw_state(struct venus_core *core, bool resume) +{ + int ret; + + if (core->use_tz) { + ret = qcom_scm_set_remote_state(resume, 0); + if (resume && ret == -EINVAL) + ret = 0; + return ret; + } + + if (resume) { + venus_reset_cpu(core); + } else { + if (IS_V6(core)) + writel(WRAPPER_XTSS_SW_RESET_BIT, + core->wrapper_tz_base + WRAPPER_TZ_XTSS_SW_RESET); + else + writel(WRAPPER_A9SS_SW_RESET_BIT, + core->wrapper_base + WRAPPER_A9SS_SW_RESET); + } + + return 0; +} + +static int venus_load_fw(struct venus_core *core, const char *fwname, + phys_addr_t *mem_phys, size_t *mem_size) +{ + const struct firmware *mdt; + struct device_node *node; + struct device *dev; + struct resource r; + ssize_t fw_size; + void *mem_va; + int ret; + + *mem_phys = 0; + *mem_size = 0; + + dev = core->dev; + node = of_parse_phandle(dev->of_node, "memory-region", 0); + if (!node) { + dev_err(dev, "no memory-region specified\n"); + return -EINVAL; + } + + ret = of_address_to_resource(node, 0, &r); + if (ret) + goto err_put_node; + + ret = request_firmware(&mdt, fwname, dev); + if (ret < 0) + goto err_put_node; + + fw_size = qcom_mdt_get_size(mdt); + if (fw_size < 0) { + ret = fw_size; + goto err_release_fw; + } + + *mem_phys = r.start; + *mem_size = resource_size(&r); + + if (*mem_size < fw_size || fw_size > VENUS_FW_MEM_SIZE) { + ret = -EINVAL; + goto err_release_fw; + } + + mem_va = memremap(r.start, *mem_size, MEMREMAP_WC); + if (!mem_va) { + dev_err(dev, "unable to map memory region: %pR\n", &r); + ret = -ENOMEM; + goto err_release_fw; + } + + if (core->use_tz) + ret = qcom_mdt_load(dev, mdt, fwname, VENUS_PAS_ID, + mem_va, *mem_phys, *mem_size, NULL); + else + ret = qcom_mdt_load_no_init(dev, mdt, fwname, VENUS_PAS_ID, + mem_va, *mem_phys, *mem_size, NULL); + + memunmap(mem_va); +err_release_fw: + release_firmware(mdt); +err_put_node: + of_node_put(node); + return ret; +} + +static int venus_boot_no_tz(struct venus_core *core, phys_addr_t mem_phys, + size_t mem_size) +{ + struct iommu_domain *iommu; + struct device *dev; + int ret; + + dev = core->fw.dev; + if (!dev) + return -EPROBE_DEFER; + + iommu = core->fw.iommu_domain; + core->fw.mapped_mem_size = mem_size; + + ret = iommu_map(iommu, VENUS_FW_START_ADDR, mem_phys, mem_size, + IOMMU_READ | IOMMU_WRITE | IOMMU_PRIV); + if (ret) { + dev_err(dev, "could not map video firmware region\n"); + return ret; + } + + venus_reset_cpu(core); + + return 0; +} + +static int venus_shutdown_no_tz(struct venus_core *core) +{ + const size_t mapped = core->fw.mapped_mem_size; + struct iommu_domain *iommu; + size_t unmapped; + u32 reg; + struct device *dev = core->fw.dev; + void __iomem *wrapper_base = core->wrapper_base; + void __iomem *wrapper_tz_base = core->wrapper_tz_base; + + if (IS_V6(core)) { + /* Assert the reset to XTSS */ + reg = readl(wrapper_tz_base + WRAPPER_TZ_XTSS_SW_RESET); + reg |= WRAPPER_XTSS_SW_RESET_BIT; + writel(reg, wrapper_tz_base + WRAPPER_TZ_XTSS_SW_RESET); + } else { + /* Assert the reset to ARM9 */ + reg = readl(wrapper_base + WRAPPER_A9SS_SW_RESET); + reg |= WRAPPER_A9SS_SW_RESET_BIT; + writel(reg, wrapper_base + WRAPPER_A9SS_SW_RESET); + } + + iommu = core->fw.iommu_domain; + + if (core->fw.mapped_mem_size && iommu) { + unmapped = iommu_unmap(iommu, VENUS_FW_START_ADDR, mapped); + + if (unmapped != mapped) + dev_err(dev, "failed to unmap firmware\n"); + else + core->fw.mapped_mem_size = 0; + } + + return 0; +} + +int venus_boot(struct venus_core *core) +{ + struct device *dev = core->dev; + const struct venus_resources *res = core->res; + const char *fwpath = NULL; + phys_addr_t mem_phys; + size_t mem_size; + int ret; + + if (!IS_ENABLED(CONFIG_QCOM_MDT_LOADER) || + (core->use_tz && !qcom_scm_is_available())) + return -EPROBE_DEFER; + + ret = of_property_read_string_index(dev->of_node, "firmware-name", 0, + &fwpath); + if (ret) + fwpath = core->res->fwname; + + ret = venus_load_fw(core, fwpath, &mem_phys, &mem_size); + if (ret) { + dev_err(dev, "fail to load video firmware\n"); + return -EINVAL; + } + + core->fw.mem_size = mem_size; + core->fw.mem_phys = mem_phys; + + if (core->use_tz) + ret = qcom_scm_pas_auth_and_reset(VENUS_PAS_ID); + else + ret = venus_boot_no_tz(core, mem_phys, mem_size); + + if (ret) + return ret; + + if (core->use_tz && res->cp_size) { + ret = qcom_scm_mem_protect_video_var(res->cp_start, + res->cp_size, + res->cp_nonpixel_start, + res->cp_nonpixel_size); + if (ret) { + qcom_scm_pas_shutdown(VENUS_PAS_ID); + dev_err(dev, "set virtual address ranges fail (%d)\n", + ret); + return ret; + } + } + + return 0; +} + +int venus_shutdown(struct venus_core *core) +{ + int ret; + + if (core->use_tz) + ret = qcom_scm_pas_shutdown(VENUS_PAS_ID); + else + ret = venus_shutdown_no_tz(core); + + return ret; +} + +int venus_firmware_init(struct venus_core *core) +{ + struct platform_device_info info; + struct iommu_domain *iommu_dom; + struct platform_device *pdev; + struct device_node *np; + int ret; + + np = of_get_child_by_name(core->dev->of_node, "video-firmware"); + if (!np) { + core->use_tz = true; + return 0; + } + + memset(&info, 0, sizeof(info)); + info.fwnode = &np->fwnode; + info.parent = core->dev; + info.name = np->name; + info.dma_mask = DMA_BIT_MASK(32); + + pdev = platform_device_register_full(&info); + if (IS_ERR(pdev)) { + of_node_put(np); + return PTR_ERR(pdev); + } + + pdev->dev.of_node = np; + + ret = of_dma_configure(&pdev->dev, np, true); + if (ret) { + dev_err(core->dev, "dma configure fail\n"); + goto err_unregister; + } + + core->fw.dev = &pdev->dev; + + iommu_dom = iommu_domain_alloc(&platform_bus_type); + if (!iommu_dom) { + dev_err(core->fw.dev, "Failed to allocate iommu domain\n"); + ret = -ENOMEM; + goto err_unregister; + } + + ret = iommu_attach_device(iommu_dom, core->fw.dev); + if (ret) { + dev_err(core->fw.dev, "could not attach device\n"); + goto err_iommu_free; + } + + core->fw.iommu_domain = iommu_dom; + + of_node_put(np); + + return 0; + +err_iommu_free: + iommu_domain_free(iommu_dom); +err_unregister: + platform_device_unregister(pdev); + of_node_put(np); + return ret; +} + +void venus_firmware_deinit(struct venus_core *core) +{ + struct iommu_domain *iommu; + + if (!core->fw.dev) + return; + + iommu = core->fw.iommu_domain; + + iommu_detach_device(iommu, core->fw.dev); + + if (core->fw.iommu_domain) { + iommu_domain_free(iommu); + core->fw.iommu_domain = NULL; + } + + platform_device_unregister(to_platform_device(core->fw.dev)); +} -- cgit v1.2.3