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(). ... --- .../net/wireless/broadcom/brcm80211/brcmsmac/pmu.c | 165 +++++++++++++++++++++ 1 file changed, 165 insertions(+) create mode 100644 drivers/net/wireless/broadcom/brcm80211/brcmsmac/pmu.c (limited to 'drivers/net/wireless/broadcom/brcm80211/brcmsmac/pmu.c') diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmsmac/pmu.c b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/pmu.c new file mode 100644 index 000000000..71b80381f --- /dev/null +++ b/drivers/net/wireless/broadcom/brcm80211/brcmsmac/pmu.c @@ -0,0 +1,165 @@ +/* + * Copyright (c) 2011 Broadcom Corporation + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include +#include + +#include +#include +#include +#include "pub.h" +#include "aiutils.h" +#include "pmu.h" +#include "soc.h" + +/* + * external LPO crystal frequency + */ +#define EXT_ILP_HZ 32768 + +/* + * Duration for ILP clock frequency measurment in milliseconds + * + * remark: 1000 must be an integer multiple of this duration + */ +#define ILP_CALC_DUR 10 + +/* Fields in pmucontrol */ +#define PCTL_ILP_DIV_MASK 0xffff0000 +#define PCTL_ILP_DIV_SHIFT 16 +#define PCTL_PLL_PLLCTL_UPD 0x00000400 /* rev 2 */ +#define PCTL_NOILP_ON_WAIT 0x00000200 /* rev 1 */ +#define PCTL_HT_REQ_EN 0x00000100 +#define PCTL_ALP_REQ_EN 0x00000080 +#define PCTL_XTALFREQ_MASK 0x0000007c +#define PCTL_XTALFREQ_SHIFT 2 +#define PCTL_ILP_DIV_EN 0x00000002 +#define PCTL_LPO_SEL 0x00000001 + +/* ILP clock */ +#define ILP_CLOCK 32000 + +/* ALP clock on pre-PMU chips */ +#define ALP_CLOCK 20000000 + +/* pmustatus */ +#define PST_EXTLPOAVAIL 0x0100 +#define PST_WDRESET 0x0080 +#define PST_INTPEND 0x0040 +#define PST_SBCLKST 0x0030 +#define PST_SBCLKST_ILP 0x0010 +#define PST_SBCLKST_ALP 0x0020 +#define PST_SBCLKST_HT 0x0030 +#define PST_ALPAVAIL 0x0008 +#define PST_HTAVAIL 0x0004 +#define PST_RESINIT 0x0003 + +/* PMU resource bit position */ +#define PMURES_BIT(bit) (1 << (bit)) + +/* PMU corerev and chip specific PLL controls. + * PMU_PLL_XX where is PMU corerev and is an arbitrary + * number to differentiate different PLLs controlled by the same PMU rev. + */ + +/* pmu XtalFreqRatio */ +#define PMU_XTALFREQ_REG_ILPCTR_MASK 0x00001FFF +#define PMU_XTALFREQ_REG_MEASURE_MASK 0x80000000 +#define PMU_XTALFREQ_REG_MEASURE_SHIFT 31 + +/* 4313 resources */ +#define RES4313_BB_PU_RSRC 0 +#define RES4313_ILP_REQ_RSRC 1 +#define RES4313_XTAL_PU_RSRC 2 +#define RES4313_ALP_AVAIL_RSRC 3 +#define RES4313_RADIO_PU_RSRC 4 +#define RES4313_BG_PU_RSRC 5 +#define RES4313_VREG1P4_PU_RSRC 6 +#define RES4313_AFE_PWRSW_RSRC 7 +#define RES4313_RX_PWRSW_RSRC 8 +#define RES4313_TX_PWRSW_RSRC 9 +#define RES4313_BB_PWRSW_RSRC 10 +#define RES4313_SYNTH_PWRSW_RSRC 11 +#define RES4313_MISC_PWRSW_RSRC 12 +#define RES4313_BB_PLL_PWRSW_RSRC 13 +#define RES4313_HT_AVAIL_RSRC 14 +#define RES4313_MACPHY_CLK_AVAIL_RSRC 15 + +u16 si_pmu_fast_pwrup_delay(struct si_pub *sih) +{ + uint delay = PMU_MAX_TRANSITION_DLY; + + switch (ai_get_chip_id(sih)) { + case BCMA_CHIP_ID_BCM43224: + case BCMA_CHIP_ID_BCM43225: + case BCMA_CHIP_ID_BCM4313: + delay = 3700; + break; + default: + break; + } + + return (u16) delay; +} + +u32 si_pmu_measure_alpclk(struct si_pub *sih) +{ + struct si_info *sii = container_of(sih, struct si_info, pub); + struct bcma_device *core; + u32 alp_khz; + + if (ai_get_pmurev(sih) < 10) + return 0; + + /* Remember original core before switch to chipc */ + core = sii->icbus->drv_cc.core; + + if (bcma_read32(core, CHIPCREGOFFS(pmustatus)) & PST_EXTLPOAVAIL) { + u32 ilp_ctr, alp_hz; + + /* + * Enable the reg to measure the freq, + * in case it was disabled before + */ + bcma_write32(core, CHIPCREGOFFS(pmu_xtalfreq), + 1U << PMU_XTALFREQ_REG_MEASURE_SHIFT); + + /* Delay for well over 4 ILP clocks */ + udelay(1000); + + /* Read the latched number of ALP ticks per 4 ILP ticks */ + ilp_ctr = bcma_read32(core, CHIPCREGOFFS(pmu_xtalfreq)) & + PMU_XTALFREQ_REG_ILPCTR_MASK; + + /* + * Turn off the PMU_XTALFREQ_REG_MEASURE_SHIFT + * bit to save power + */ + bcma_write32(core, CHIPCREGOFFS(pmu_xtalfreq), 0); + + /* Calculate ALP frequency */ + alp_hz = (ilp_ctr * EXT_ILP_HZ) / 4; + + /* + * Round to nearest 100KHz, and at + * the same time convert to KHz + */ + alp_khz = (alp_hz + 50000) / 100000 * 100; + } else + alp_khz = 0; + + return alp_khz; +} -- cgit v1.2.3