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/panfrost/panfrost_device.h | 265 +++++++++++++++++++++++++++++ 1 file changed, 265 insertions(+) create mode 100644 drivers/gpu/drm/panfrost/panfrost_device.h (limited to 'drivers/gpu/drm/panfrost/panfrost_device.h') diff --git a/drivers/gpu/drm/panfrost/panfrost_device.h b/drivers/gpu/drm/panfrost/panfrost_device.h new file mode 100644 index 000000000..8b25278f3 --- /dev/null +++ b/drivers/gpu/drm/panfrost/panfrost_device.h @@ -0,0 +1,265 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* Copyright 2018 Marty E. Plummer */ +/* Copyright 2019 Linaro, Ltd, Rob Herring */ + +#ifndef __PANFROST_DEVICE_H__ +#define __PANFROST_DEVICE_H__ + +#include +#include +#include +#include +#include +#include +#include + +#include "panfrost_devfreq.h" + +struct panfrost_device; +struct panfrost_mmu; +struct panfrost_job_slot; +struct panfrost_job; +struct panfrost_perfcnt; + +#define NUM_JOB_SLOTS 3 +#define MAX_PM_DOMAINS 3 + +struct panfrost_features { + u16 id; + u16 revision; + + u64 shader_present; + u64 tiler_present; + u64 l2_present; + u64 stack_present; + u32 as_present; + u32 js_present; + + u32 l2_features; + u32 core_features; + u32 tiler_features; + u32 mem_features; + u32 mmu_features; + u32 thread_features; + u32 max_threads; + u32 thread_max_workgroup_sz; + u32 thread_max_barrier_sz; + u32 coherency_features; + u32 afbc_features; + u32 texture_features[4]; + u32 js_features[16]; + + u32 nr_core_groups; + u32 thread_tls_alloc; + + unsigned long hw_features[64 / BITS_PER_LONG]; + unsigned long hw_issues[64 / BITS_PER_LONG]; +}; + +/* + * Features that cannot be automatically detected and need matching using the + * compatible string, typically SoC-specific. + */ +struct panfrost_compatible { + /* Supplies count and names. */ + int num_supplies; + const char * const *supply_names; + /* + * Number of power domains required, note that values 0 and 1 are + * handled identically, as only values > 1 need special handling. + */ + int num_pm_domains; + /* Only required if num_pm_domains > 1. */ + const char * const *pm_domain_names; + + /* Vendor implementation quirks callback */ + void (*vendor_quirk)(struct panfrost_device *pfdev); +}; + +struct panfrost_device { + struct device *dev; + struct drm_device *ddev; + struct platform_device *pdev; + + void __iomem *iomem; + struct clk *clock; + struct clk *bus_clock; + struct regulator_bulk_data *regulators; + struct reset_control *rstc; + /* pm_domains for devices with more than one. */ + struct device *pm_domain_devs[MAX_PM_DOMAINS]; + struct device_link *pm_domain_links[MAX_PM_DOMAINS]; + bool coherent; + + struct panfrost_features features; + const struct panfrost_compatible *comp; + + spinlock_t as_lock; + unsigned long as_in_use_mask; + unsigned long as_alloc_mask; + unsigned long as_faulty_mask; + struct list_head as_lru_list; + + struct panfrost_job_slot *js; + + struct panfrost_job *jobs[NUM_JOB_SLOTS][2]; + struct list_head scheduled_jobs; + + struct panfrost_perfcnt *perfcnt; + + struct mutex sched_lock; + + struct { + struct workqueue_struct *wq; + struct work_struct work; + atomic_t pending; + } reset; + + struct mutex shrinker_lock; + struct list_head shrinker_list; + struct shrinker shrinker; + + struct panfrost_devfreq pfdevfreq; +}; + +struct panfrost_mmu { + struct panfrost_device *pfdev; + struct kref refcount; + struct io_pgtable_cfg pgtbl_cfg; + struct io_pgtable_ops *pgtbl_ops; + struct drm_mm mm; + spinlock_t mm_lock; + int as; + atomic_t as_count; + struct list_head list; +}; + +struct panfrost_file_priv { + struct panfrost_device *pfdev; + + struct drm_sched_entity sched_entity[NUM_JOB_SLOTS]; + + struct panfrost_mmu *mmu; +}; + +static inline struct panfrost_device *to_panfrost_device(struct drm_device *ddev) +{ + return ddev->dev_private; +} + +static inline int panfrost_model_cmp(struct panfrost_device *pfdev, s32 id) +{ + s32 match_id = pfdev->features.id; + + if (match_id & 0xf000) + match_id &= 0xf00f; + return match_id - id; +} + +static inline bool panfrost_model_is_bifrost(struct panfrost_device *pfdev) +{ + return panfrost_model_cmp(pfdev, 0x1000) >= 0; +} + +static inline bool panfrost_model_eq(struct panfrost_device *pfdev, s32 id) +{ + return !panfrost_model_cmp(pfdev, id); +} + +int panfrost_unstable_ioctl_check(void); + +int panfrost_device_init(struct panfrost_device *pfdev); +void panfrost_device_fini(struct panfrost_device *pfdev); +void panfrost_device_reset(struct panfrost_device *pfdev); + +int panfrost_device_resume(struct device *dev); +int panfrost_device_suspend(struct device *dev); + +enum drm_panfrost_exception_type { + DRM_PANFROST_EXCEPTION_OK = 0x00, + DRM_PANFROST_EXCEPTION_DONE = 0x01, + DRM_PANFROST_EXCEPTION_INTERRUPTED = 0x02, + DRM_PANFROST_EXCEPTION_STOPPED = 0x03, + DRM_PANFROST_EXCEPTION_TERMINATED = 0x04, + DRM_PANFROST_EXCEPTION_KABOOM = 0x05, + DRM_PANFROST_EXCEPTION_EUREKA = 0x06, + DRM_PANFROST_EXCEPTION_ACTIVE = 0x08, + DRM_PANFROST_EXCEPTION_MAX_NON_FAULT = 0x3f, + DRM_PANFROST_EXCEPTION_JOB_CONFIG_FAULT = 0x40, + DRM_PANFROST_EXCEPTION_JOB_POWER_FAULT = 0x41, + DRM_PANFROST_EXCEPTION_JOB_READ_FAULT = 0x42, + DRM_PANFROST_EXCEPTION_JOB_WRITE_FAULT = 0x43, + DRM_PANFROST_EXCEPTION_JOB_AFFINITY_FAULT = 0x44, + DRM_PANFROST_EXCEPTION_JOB_BUS_FAULT = 0x48, + DRM_PANFROST_EXCEPTION_INSTR_INVALID_PC = 0x50, + DRM_PANFROST_EXCEPTION_INSTR_INVALID_ENC = 0x51, + DRM_PANFROST_EXCEPTION_INSTR_TYPE_MISMATCH = 0x52, + DRM_PANFROST_EXCEPTION_INSTR_OPERAND_FAULT = 0x53, + DRM_PANFROST_EXCEPTION_INSTR_TLS_FAULT = 0x54, + DRM_PANFROST_EXCEPTION_INSTR_BARRIER_FAULT = 0x55, + DRM_PANFROST_EXCEPTION_INSTR_ALIGN_FAULT = 0x56, + DRM_PANFROST_EXCEPTION_DATA_INVALID_FAULT = 0x58, + DRM_PANFROST_EXCEPTION_TILE_RANGE_FAULT = 0x59, + DRM_PANFROST_EXCEPTION_ADDR_RANGE_FAULT = 0x5a, + DRM_PANFROST_EXCEPTION_IMPRECISE_FAULT = 0x5b, + DRM_PANFROST_EXCEPTION_OOM = 0x60, + DRM_PANFROST_EXCEPTION_OOM_AFBC = 0x61, + DRM_PANFROST_EXCEPTION_UNKNOWN = 0x7f, + DRM_PANFROST_EXCEPTION_DELAYED_BUS_FAULT = 0x80, + DRM_PANFROST_EXCEPTION_GPU_SHAREABILITY_FAULT = 0x88, + DRM_PANFROST_EXCEPTION_SYS_SHAREABILITY_FAULT = 0x89, + DRM_PANFROST_EXCEPTION_GPU_CACHEABILITY_FAULT = 0x8a, + DRM_PANFROST_EXCEPTION_TRANSLATION_FAULT_0 = 0xc0, + DRM_PANFROST_EXCEPTION_TRANSLATION_FAULT_1 = 0xc1, + DRM_PANFROST_EXCEPTION_TRANSLATION_FAULT_2 = 0xc2, + DRM_PANFROST_EXCEPTION_TRANSLATION_FAULT_3 = 0xc3, + DRM_PANFROST_EXCEPTION_TRANSLATION_FAULT_4 = 0xc4, + DRM_PANFROST_EXCEPTION_TRANSLATION_FAULT_IDENTITY = 0xc7, + DRM_PANFROST_EXCEPTION_PERM_FAULT_0 = 0xc8, + DRM_PANFROST_EXCEPTION_PERM_FAULT_1 = 0xc9, + DRM_PANFROST_EXCEPTION_PERM_FAULT_2 = 0xca, + DRM_PANFROST_EXCEPTION_PERM_FAULT_3 = 0xcb, + DRM_PANFROST_EXCEPTION_TRANSTAB_BUS_FAULT_0 = 0xd0, + DRM_PANFROST_EXCEPTION_TRANSTAB_BUS_FAULT_1 = 0xd1, + DRM_PANFROST_EXCEPTION_TRANSTAB_BUS_FAULT_2 = 0xd2, + DRM_PANFROST_EXCEPTION_TRANSTAB_BUS_FAULT_3 = 0xd3, + DRM_PANFROST_EXCEPTION_ACCESS_FLAG_0 = 0xd8, + DRM_PANFROST_EXCEPTION_ACCESS_FLAG_1 = 0xd9, + DRM_PANFROST_EXCEPTION_ACCESS_FLAG_2 = 0xda, + DRM_PANFROST_EXCEPTION_ACCESS_FLAG_3 = 0xdb, + DRM_PANFROST_EXCEPTION_ADDR_SIZE_FAULT_IN0 = 0xe0, + DRM_PANFROST_EXCEPTION_ADDR_SIZE_FAULT_IN1 = 0xe1, + DRM_PANFROST_EXCEPTION_ADDR_SIZE_FAULT_IN2 = 0xe2, + DRM_PANFROST_EXCEPTION_ADDR_SIZE_FAULT_IN3 = 0xe3, + DRM_PANFROST_EXCEPTION_ADDR_SIZE_FAULT_OUT0 = 0xe4, + DRM_PANFROST_EXCEPTION_ADDR_SIZE_FAULT_OUT1 = 0xe5, + DRM_PANFROST_EXCEPTION_ADDR_SIZE_FAULT_OUT2 = 0xe6, + DRM_PANFROST_EXCEPTION_ADDR_SIZE_FAULT_OUT3 = 0xe7, + DRM_PANFROST_EXCEPTION_MEM_ATTR_FAULT_0 = 0xe8, + DRM_PANFROST_EXCEPTION_MEM_ATTR_FAULT_1 = 0xe9, + DRM_PANFROST_EXCEPTION_MEM_ATTR_FAULT_2 = 0xea, + DRM_PANFROST_EXCEPTION_MEM_ATTR_FAULT_3 = 0xeb, + DRM_PANFROST_EXCEPTION_MEM_ATTR_NONCACHE_0 = 0xec, + DRM_PANFROST_EXCEPTION_MEM_ATTR_NONCACHE_1 = 0xed, + DRM_PANFROST_EXCEPTION_MEM_ATTR_NONCACHE_2 = 0xee, + DRM_PANFROST_EXCEPTION_MEM_ATTR_NONCACHE_3 = 0xef, +}; + +static inline bool +panfrost_exception_is_fault(u32 exception_code) +{ + return exception_code > DRM_PANFROST_EXCEPTION_MAX_NON_FAULT; +} + +const char *panfrost_exception_name(u32 exception_code); +bool panfrost_exception_needs_reset(const struct panfrost_device *pfdev, + u32 exception_code); + +static inline void +panfrost_device_schedule_reset(struct panfrost_device *pfdev) +{ + atomic_set(&pfdev->reset.pending, 1); + queue_work(pfdev->reset.wq, &pfdev->reset.work); +} + +#endif -- cgit v1.2.3