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author | 2023-02-21 18:24:12 -0800 | |
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committer | 2023-02-21 18:24:12 -0800 | |
commit | 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch) | |
tree | cc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/clk/samsung/clk.h | |
download | linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip |
Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
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().
...
Diffstat (limited to 'drivers/clk/samsung/clk.h')
-rw-r--r-- | drivers/clk/samsung/clk.h | 410 |
1 files changed, 410 insertions, 0 deletions
diff --git a/drivers/clk/samsung/clk.h b/drivers/clk/samsung/clk.h new file mode 100644 index 000000000..b46e83a25 --- /dev/null +++ b/drivers/clk/samsung/clk.h @@ -0,0 +1,410 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2013 Samsung Electronics Co., Ltd. + * Copyright (c) 2013 Linaro Ltd. + * Author: Thomas Abraham <thomas.ab@samsung.com> + * + * Common Clock Framework support for all Samsung platforms +*/ + +#ifndef __SAMSUNG_CLK_H +#define __SAMSUNG_CLK_H + +#include <linux/clk-provider.h> +#include "clk-pll.h" + +/** + * struct samsung_clk_provider: information about clock provider + * @reg_base: virtual address for the register base. + * @lock: maintains exclusion between callbacks for a given clock-provider. + * @clk_data: holds clock related data like clk_hw* and number of clocks. + */ +struct samsung_clk_provider { + void __iomem *reg_base; + struct device *dev; + spinlock_t lock; + /* clk_data must be the last entry due to variable length 'hws' array */ + struct clk_hw_onecell_data clk_data; +}; + +/** + * struct samsung_clock_alias: information about mux clock + * @id: platform specific id of the clock. + * @dev_name: name of the device to which this clock belongs. + * @alias: optional clock alias name to be assigned to this clock. + */ +struct samsung_clock_alias { + unsigned int id; + const char *dev_name; + const char *alias; +}; + +#define ALIAS(_id, dname, a) \ + { \ + .id = _id, \ + .dev_name = dname, \ + .alias = a, \ + } + +#define MHZ (1000 * 1000) + +/** + * struct samsung_fixed_rate_clock: information about fixed-rate clock + * @id: platform specific id of the clock. + * @name: name of this fixed-rate clock. + * @parent_name: optional parent clock name. + * @flags: optional fixed-rate clock flags. + * @fixed-rate: fixed clock rate of this clock. + */ +struct samsung_fixed_rate_clock { + unsigned int id; + char *name; + const char *parent_name; + unsigned long flags; + unsigned long fixed_rate; +}; + +#define FRATE(_id, cname, pname, f, frate) \ + { \ + .id = _id, \ + .name = cname, \ + .parent_name = pname, \ + .flags = f, \ + .fixed_rate = frate, \ + } + +/* + * struct samsung_fixed_factor_clock: information about fixed-factor clock + * @id: platform specific id of the clock. + * @name: name of this fixed-factor clock. + * @parent_name: parent clock name. + * @mult: fixed multiplication factor. + * @div: fixed division factor. + * @flags: optional fixed-factor clock flags. + */ +struct samsung_fixed_factor_clock { + unsigned int id; + char *name; + const char *parent_name; + unsigned long mult; + unsigned long div; + unsigned long flags; +}; + +#define FFACTOR(_id, cname, pname, m, d, f) \ + { \ + .id = _id, \ + .name = cname, \ + .parent_name = pname, \ + .mult = m, \ + .div = d, \ + .flags = f, \ + } + +/** + * struct samsung_mux_clock: information about mux clock + * @id: platform specific id of the clock. + * @name: name of this mux clock. + * @parent_names: array of pointer to parent clock names. + * @num_parents: number of parents listed in @parent_names. + * @flags: optional flags for basic clock. + * @offset: offset of the register for configuring the mux. + * @shift: starting bit location of the mux control bit-field in @reg. + * @width: width of the mux control bit-field in @reg. + * @mux_flags: flags for mux-type clock. + */ +struct samsung_mux_clock { + unsigned int id; + const char *name; + const char *const *parent_names; + u8 num_parents; + unsigned long flags; + unsigned long offset; + u8 shift; + u8 width; + u8 mux_flags; +}; + +#define __MUX(_id, cname, pnames, o, s, w, f, mf) \ + { \ + .id = _id, \ + .name = cname, \ + .parent_names = pnames, \ + .num_parents = ARRAY_SIZE(pnames), \ + .flags = (f) | CLK_SET_RATE_NO_REPARENT, \ + .offset = o, \ + .shift = s, \ + .width = w, \ + .mux_flags = mf, \ + } + +#define MUX(_id, cname, pnames, o, s, w) \ + __MUX(_id, cname, pnames, o, s, w, 0, 0) + +#define MUX_F(_id, cname, pnames, o, s, w, f, mf) \ + __MUX(_id, cname, pnames, o, s, w, f, mf) + +/** + * @id: platform specific id of the clock. + * struct samsung_div_clock: information about div clock + * @name: name of this div clock. + * @parent_name: name of the parent clock. + * @flags: optional flags for basic clock. + * @offset: offset of the register for configuring the div. + * @shift: starting bit location of the div control bit-field in @reg. + * @div_flags: flags for div-type clock. + */ +struct samsung_div_clock { + unsigned int id; + const char *name; + const char *parent_name; + unsigned long flags; + unsigned long offset; + u8 shift; + u8 width; + u8 div_flags; + struct clk_div_table *table; +}; + +#define __DIV(_id, cname, pname, o, s, w, f, df, t) \ + { \ + .id = _id, \ + .name = cname, \ + .parent_name = pname, \ + .flags = f, \ + .offset = o, \ + .shift = s, \ + .width = w, \ + .div_flags = df, \ + .table = t, \ + } + +#define DIV(_id, cname, pname, o, s, w) \ + __DIV(_id, cname, pname, o, s, w, 0, 0, NULL) + +#define DIV_F(_id, cname, pname, o, s, w, f, df) \ + __DIV(_id, cname, pname, o, s, w, f, df, NULL) + +#define DIV_T(_id, cname, pname, o, s, w, t) \ + __DIV(_id, cname, pname, o, s, w, 0, 0, t) + +/** + * struct samsung_gate_clock: information about gate clock + * @id: platform specific id of the clock. + * @name: name of this gate clock. + * @parent_name: name of the parent clock. + * @flags: optional flags for basic clock. + * @offset: offset of the register for configuring the gate. + * @bit_idx: bit index of the gate control bit-field in @reg. + * @gate_flags: flags for gate-type clock. + */ +struct samsung_gate_clock { + unsigned int id; + const char *name; + const char *parent_name; + unsigned long flags; + unsigned long offset; + u8 bit_idx; + u8 gate_flags; +}; + +#define __GATE(_id, cname, pname, o, b, f, gf) \ + { \ + .id = _id, \ + .name = cname, \ + .parent_name = pname, \ + .flags = f, \ + .offset = o, \ + .bit_idx = b, \ + .gate_flags = gf, \ + } + +#define GATE(_id, cname, pname, o, b, f, gf) \ + __GATE(_id, cname, pname, o, b, f, gf) + +#define PNAME(x) static const char * const x[] __initconst + +/** + * struct samsung_clk_reg_dump: register dump of clock controller registers. + * @offset: clock register offset from the controller base address. + * @value: the value to be register at offset. + */ +struct samsung_clk_reg_dump { + u32 offset; + u32 value; +}; + +/** + * struct samsung_pll_clock: information about pll clock + * @id: platform specific id of the clock. + * @name: name of this pll clock. + * @parent_name: name of the parent clock. + * @flags: optional flags for basic clock. + * @con_offset: offset of the register for configuring the PLL. + * @lock_offset: offset of the register for locking the PLL. + * @type: Type of PLL to be registered. + */ +struct samsung_pll_clock { + unsigned int id; + const char *name; + const char *parent_name; + unsigned long flags; + int con_offset; + int lock_offset; + enum samsung_pll_type type; + const struct samsung_pll_rate_table *rate_table; +}; + +#define __PLL(_typ, _id, _name, _pname, _flags, _lock, _con, _rtable) \ + { \ + .id = _id, \ + .type = _typ, \ + .name = _name, \ + .parent_name = _pname, \ + .flags = _flags, \ + .con_offset = _con, \ + .lock_offset = _lock, \ + .rate_table = _rtable, \ + } + +#define PLL(_typ, _id, _name, _pname, _lock, _con, _rtable) \ + __PLL(_typ, _id, _name, _pname, CLK_GET_RATE_NOCACHE, _lock, \ + _con, _rtable) + +struct samsung_cpu_clock { + unsigned int id; + const char *name; + unsigned int parent_id; + unsigned int alt_parent_id; + unsigned long flags; + int offset; + const struct exynos_cpuclk_cfg_data *cfg; +}; + +#define CPU_CLK(_id, _name, _pid, _apid, _flags, _offset, _cfg) \ + { \ + .id = _id, \ + .name = _name, \ + .parent_id = _pid, \ + .alt_parent_id = _apid, \ + .flags = _flags, \ + .offset = _offset, \ + .cfg = _cfg, \ + } + +struct samsung_clock_reg_cache { + struct list_head node; + void __iomem *reg_base; + struct samsung_clk_reg_dump *rdump; + unsigned int rd_num; + const struct samsung_clk_reg_dump *rsuspend; + unsigned int rsuspend_num; +}; + +struct samsung_cmu_info { + /* list of pll clocks and respective count */ + const struct samsung_pll_clock *pll_clks; + unsigned int nr_pll_clks; + /* list of mux clocks and respective count */ + const struct samsung_mux_clock *mux_clks; + unsigned int nr_mux_clks; + /* list of div clocks and respective count */ + const struct samsung_div_clock *div_clks; + unsigned int nr_div_clks; + /* list of gate clocks and respective count */ + const struct samsung_gate_clock *gate_clks; + unsigned int nr_gate_clks; + /* list of fixed clocks and respective count */ + const struct samsung_fixed_rate_clock *fixed_clks; + unsigned int nr_fixed_clks; + /* list of fixed factor clocks and respective count */ + const struct samsung_fixed_factor_clock *fixed_factor_clks; + unsigned int nr_fixed_factor_clks; + /* total number of clocks with IDs assigned*/ + unsigned int nr_clk_ids; + /* list of cpu clocks and respective count */ + const struct samsung_cpu_clock *cpu_clks; + unsigned int nr_cpu_clks; + + /* list and number of clocks registers */ + const unsigned long *clk_regs; + unsigned int nr_clk_regs; + + /* list and number of clocks registers to set before suspend */ + const struct samsung_clk_reg_dump *suspend_regs; + unsigned int nr_suspend_regs; + /* name of the parent clock needed for CMU register access */ + const char *clk_name; +}; + +struct samsung_clk_provider * samsung_clk_init( + struct device_node *np, void __iomem *base, + unsigned long nr_clks); +void samsung_clk_of_add_provider(struct device_node *np, + struct samsung_clk_provider *ctx); +void samsung_clk_of_register_fixed_ext( + struct samsung_clk_provider *ctx, + struct samsung_fixed_rate_clock *fixed_rate_clk, + unsigned int nr_fixed_rate_clk, + const struct of_device_id *clk_matches); + +void samsung_clk_add_lookup(struct samsung_clk_provider *ctx, + struct clk_hw *clk_hw, unsigned int id); + +void samsung_clk_register_alias(struct samsung_clk_provider *ctx, + const struct samsung_clock_alias *list, + unsigned int nr_clk); +void samsung_clk_register_fixed_rate( + struct samsung_clk_provider *ctx, + const struct samsung_fixed_rate_clock *clk_list, + unsigned int nr_clk); +void samsung_clk_register_fixed_factor( + struct samsung_clk_provider *ctx, + const struct samsung_fixed_factor_clock *list, + unsigned int nr_clk); +void samsung_clk_register_mux(struct samsung_clk_provider *ctx, + const struct samsung_mux_clock *clk_list, + unsigned int nr_clk); +void samsung_clk_register_div(struct samsung_clk_provider *ctx, + const struct samsung_div_clock *clk_list, + unsigned int nr_clk); +void samsung_clk_register_gate(struct samsung_clk_provider *ctx, + const struct samsung_gate_clock *clk_list, + unsigned int nr_clk); +void samsung_clk_register_pll(struct samsung_clk_provider *ctx, + const struct samsung_pll_clock *pll_list, + unsigned int nr_clk, void __iomem *base); +void samsung_clk_register_cpu(struct samsung_clk_provider *ctx, + const struct samsung_cpu_clock *list, unsigned int nr_clk); + +struct samsung_clk_provider *samsung_cmu_register_one( + struct device_node *, + const struct samsung_cmu_info *); + +#ifdef CONFIG_PM_SLEEP +void samsung_clk_extended_sleep_init(void __iomem *reg_base, + const unsigned long *rdump, + unsigned long nr_rdump, + const struct samsung_clk_reg_dump *rsuspend, + unsigned long nr_rsuspend); +#else +static inline void samsung_clk_extended_sleep_init(void __iomem *reg_base, + const unsigned long *rdump, + unsigned long nr_rdump, + const struct samsung_clk_reg_dump *rsuspend, + unsigned long nr_rsuspend) {} +#endif +#define samsung_clk_sleep_init(reg_base, rdump, nr_rdump) \ + samsung_clk_extended_sleep_init(reg_base, rdump, nr_rdump, NULL, 0) + +void samsung_clk_save(void __iomem *base, + struct samsung_clk_reg_dump *rd, + unsigned int num_regs); +void samsung_clk_restore(void __iomem *base, + const struct samsung_clk_reg_dump *rd, + unsigned int num_regs); +struct samsung_clk_reg_dump *samsung_clk_alloc_reg_dump( + const unsigned long *rdump, + unsigned long nr_rdump); + +#endif /* __SAMSUNG_CLK_H */ |