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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 /arch/mips/include/asm/octeon/cvmx-l2c.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 '')
-rw-r--r-- | arch/mips/include/asm/octeon/cvmx-l2c.h | 364 |
1 files changed, 364 insertions, 0 deletions
diff --git a/arch/mips/include/asm/octeon/cvmx-l2c.h b/arch/mips/include/asm/octeon/cvmx-l2c.h new file mode 100644 index 000000000..4459a3200 --- /dev/null +++ b/arch/mips/include/asm/octeon/cvmx-l2c.h @@ -0,0 +1,364 @@ +/***********************license start*************** + * Author: Cavium Networks + * + * Contact: support@caviumnetworks.com + * This file is part of the OCTEON SDK + * + * Copyright (c) 2003-2017 Cavium, Inc. + * + * This file is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License, Version 2, as + * published by the Free Software Foundation. + * + * This file is distributed in the hope that it will be useful, but + * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty + * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or + * NONINFRINGEMENT. See the GNU General Public License for more + * details. + * + * You should have received a copy of the GNU General Public License + * along with this file; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * or visit http://www.gnu.org/licenses/. + * + * This file may also be available under a different license from Cavium. + * Contact Cavium Networks for more information + ***********************license end**************************************/ + +/* + * Interface to the Level 2 Cache (L2C) control, measurement, and debugging + * facilities. + */ + +#ifndef __CVMX_L2C_H__ +#define __CVMX_L2C_H__ + +#include <uapi/asm/bitfield.h> + +#define CVMX_L2_ASSOC cvmx_l2c_get_num_assoc() /* Deprecated macro */ +#define CVMX_L2_SET_BITS cvmx_l2c_get_set_bits() /* Deprecated macro */ +#define CVMX_L2_SETS cvmx_l2c_get_num_sets() /* Deprecated macro */ + +/* Based on 128 byte cache line size */ +#define CVMX_L2C_IDX_ADDR_SHIFT 7 +#define CVMX_L2C_IDX_MASK (cvmx_l2c_get_num_sets() - 1) + +/* Defines for index aliasing computations */ +#define CVMX_L2C_TAG_ADDR_ALIAS_SHIFT (CVMX_L2C_IDX_ADDR_SHIFT + \ + cvmx_l2c_get_set_bits()) +#define CVMX_L2C_ALIAS_MASK (CVMX_L2C_IDX_MASK << CVMX_L2C_TAG_ADDR_ALIAS_SHIFT) +#define CVMX_L2C_MEMBANK_SELECT_SIZE 4096 + +/* Number of L2C Tag-and-data sections (TADs) that are connected to LMC. */ +#define CVMX_L2C_TADS 1 + +union cvmx_l2c_tag { + uint64_t u64; + struct { + __BITFIELD_FIELD(uint64_t reserved:28, + __BITFIELD_FIELD(uint64_t V:1, + __BITFIELD_FIELD(uint64_t D:1, + __BITFIELD_FIELD(uint64_t L:1, + __BITFIELD_FIELD(uint64_t U:1, + __BITFIELD_FIELD(uint64_t addr:32, + ;)))))) + } s; +}; + +/* L2C Performance Counter events. */ +enum cvmx_l2c_event { + CVMX_L2C_EVENT_CYCLES = 0, + CVMX_L2C_EVENT_INSTRUCTION_MISS = 1, + CVMX_L2C_EVENT_INSTRUCTION_HIT = 2, + CVMX_L2C_EVENT_DATA_MISS = 3, + CVMX_L2C_EVENT_DATA_HIT = 4, + CVMX_L2C_EVENT_MISS = 5, + CVMX_L2C_EVENT_HIT = 6, + CVMX_L2C_EVENT_VICTIM_HIT = 7, + CVMX_L2C_EVENT_INDEX_CONFLICT = 8, + CVMX_L2C_EVENT_TAG_PROBE = 9, + CVMX_L2C_EVENT_TAG_UPDATE = 10, + CVMX_L2C_EVENT_TAG_COMPLETE = 11, + CVMX_L2C_EVENT_TAG_DIRTY = 12, + CVMX_L2C_EVENT_DATA_STORE_NOP = 13, + CVMX_L2C_EVENT_DATA_STORE_READ = 14, + CVMX_L2C_EVENT_DATA_STORE_WRITE = 15, + CVMX_L2C_EVENT_FILL_DATA_VALID = 16, + CVMX_L2C_EVENT_WRITE_REQUEST = 17, + CVMX_L2C_EVENT_READ_REQUEST = 18, + CVMX_L2C_EVENT_WRITE_DATA_VALID = 19, + CVMX_L2C_EVENT_XMC_NOP = 20, + CVMX_L2C_EVENT_XMC_LDT = 21, + CVMX_L2C_EVENT_XMC_LDI = 22, + CVMX_L2C_EVENT_XMC_LDD = 23, + CVMX_L2C_EVENT_XMC_STF = 24, + CVMX_L2C_EVENT_XMC_STT = 25, + CVMX_L2C_EVENT_XMC_STP = 26, + CVMX_L2C_EVENT_XMC_STC = 27, + CVMX_L2C_EVENT_XMC_DWB = 28, + CVMX_L2C_EVENT_XMC_PL2 = 29, + CVMX_L2C_EVENT_XMC_PSL1 = 30, + CVMX_L2C_EVENT_XMC_IOBLD = 31, + CVMX_L2C_EVENT_XMC_IOBST = 32, + CVMX_L2C_EVENT_XMC_IOBDMA = 33, + CVMX_L2C_EVENT_XMC_IOBRSP = 34, + CVMX_L2C_EVENT_XMC_BUS_VALID = 35, + CVMX_L2C_EVENT_XMC_MEM_DATA = 36, + CVMX_L2C_EVENT_XMC_REFL_DATA = 37, + CVMX_L2C_EVENT_XMC_IOBRSP_DATA = 38, + CVMX_L2C_EVENT_RSC_NOP = 39, + CVMX_L2C_EVENT_RSC_STDN = 40, + CVMX_L2C_EVENT_RSC_FILL = 41, + CVMX_L2C_EVENT_RSC_REFL = 42, + CVMX_L2C_EVENT_RSC_STIN = 43, + CVMX_L2C_EVENT_RSC_SCIN = 44, + CVMX_L2C_EVENT_RSC_SCFL = 45, + CVMX_L2C_EVENT_RSC_SCDN = 46, + CVMX_L2C_EVENT_RSC_DATA_VALID = 47, + CVMX_L2C_EVENT_RSC_VALID_FILL = 48, + CVMX_L2C_EVENT_RSC_VALID_STRSP = 49, + CVMX_L2C_EVENT_RSC_VALID_REFL = 50, + CVMX_L2C_EVENT_LRF_REQ = 51, + CVMX_L2C_EVENT_DT_RD_ALLOC = 52, + CVMX_L2C_EVENT_DT_WR_INVAL = 53, + CVMX_L2C_EVENT_MAX +}; + +/* L2C Performance Counter events for Octeon2. */ +enum cvmx_l2c_tad_event { + CVMX_L2C_TAD_EVENT_NONE = 0, + CVMX_L2C_TAD_EVENT_TAG_HIT = 1, + CVMX_L2C_TAD_EVENT_TAG_MISS = 2, + CVMX_L2C_TAD_EVENT_TAG_NOALLOC = 3, + CVMX_L2C_TAD_EVENT_TAG_VICTIM = 4, + CVMX_L2C_TAD_EVENT_SC_FAIL = 5, + CVMX_L2C_TAD_EVENT_SC_PASS = 6, + CVMX_L2C_TAD_EVENT_LFB_VALID = 7, + CVMX_L2C_TAD_EVENT_LFB_WAIT_LFB = 8, + CVMX_L2C_TAD_EVENT_LFB_WAIT_VAB = 9, + CVMX_L2C_TAD_EVENT_QUAD0_INDEX = 128, + CVMX_L2C_TAD_EVENT_QUAD0_READ = 129, + CVMX_L2C_TAD_EVENT_QUAD0_BANK = 130, + CVMX_L2C_TAD_EVENT_QUAD0_WDAT = 131, + CVMX_L2C_TAD_EVENT_QUAD1_INDEX = 144, + CVMX_L2C_TAD_EVENT_QUAD1_READ = 145, + CVMX_L2C_TAD_EVENT_QUAD1_BANK = 146, + CVMX_L2C_TAD_EVENT_QUAD1_WDAT = 147, + CVMX_L2C_TAD_EVENT_QUAD2_INDEX = 160, + CVMX_L2C_TAD_EVENT_QUAD2_READ = 161, + CVMX_L2C_TAD_EVENT_QUAD2_BANK = 162, + CVMX_L2C_TAD_EVENT_QUAD2_WDAT = 163, + CVMX_L2C_TAD_EVENT_QUAD3_INDEX = 176, + CVMX_L2C_TAD_EVENT_QUAD3_READ = 177, + CVMX_L2C_TAD_EVENT_QUAD3_BANK = 178, + CVMX_L2C_TAD_EVENT_QUAD3_WDAT = 179, + CVMX_L2C_TAD_EVENT_MAX +}; + +/** + * Configure one of the four L2 Cache performance counters to capture event + * occurrences. + * + * @counter: The counter to configure. Range 0..3. + * @event: The type of L2 Cache event occurrence to count. + * @clear_on_read: When asserted, any read of the performance counter + * clears the counter. + * + * @note The routine does not clear the counter. + */ +void cvmx_l2c_config_perf(uint32_t counter, enum cvmx_l2c_event event, + uint32_t clear_on_read); + +/** + * Read the given L2 Cache performance counter. The counter must be configured + * before reading, but this routine does not enforce this requirement. + * + * @counter: The counter to configure. Range 0..3. + * + * Returns The current counter value. + */ +uint64_t cvmx_l2c_read_perf(uint32_t counter); + +/** + * Return the L2 Cache way partitioning for a given core. + * + * @core: The core processor of interest. + * + * Returns The mask specifying the partitioning. 0 bits in mask indicates + * the cache 'ways' that a core can evict from. + * -1 on error + */ +int cvmx_l2c_get_core_way_partition(uint32_t core); + +/** + * Partitions the L2 cache for a core + * + * @core: The core that the partitioning applies to. + * @mask: The partitioning of the ways expressed as a binary + * mask. A 0 bit allows the core to evict cache lines from + * a way, while a 1 bit blocks the core from evicting any + * lines from that way. There must be at least one allowed + * way (0 bit) in the mask. + * + + * @note If any ways are blocked for all cores and the HW blocks, then + * those ways will never have any cache lines evicted from them. + * All cores and the hardware blocks are free to read from all + * ways regardless of the partitioning. + */ +int cvmx_l2c_set_core_way_partition(uint32_t core, uint32_t mask); + +/** + * Return the L2 Cache way partitioning for the hw blocks. + * + * Returns The mask specifying the reserved way. 0 bits in mask indicates + * the cache 'ways' that a core can evict from. + * -1 on error + */ +int cvmx_l2c_get_hw_way_partition(void); + +/** + * Partitions the L2 cache for the hardware blocks. + * + * @mask: The partitioning of the ways expressed as a binary + * mask. A 0 bit allows the core to evict cache lines from + * a way, while a 1 bit blocks the core from evicting any + * lines from that way. There must be at least one allowed + * way (0 bit) in the mask. + * + + * @note If any ways are blocked for all cores and the HW blocks, then + * those ways will never have any cache lines evicted from them. + * All cores and the hardware blocks are free to read from all + * ways regardless of the partitioning. + */ +int cvmx_l2c_set_hw_way_partition(uint32_t mask); + + +/** + * Locks a line in the L2 cache at the specified physical address + * + * @addr: physical address of line to lock + * + * Returns 0 on success, + * 1 if line not locked. + */ +int cvmx_l2c_lock_line(uint64_t addr); + +/** + * Locks a specified memory region in the L2 cache. + * + * Note that if not all lines can be locked, that means that all + * but one of the ways (associations) available to the locking + * core are locked. Having only 1 association available for + * normal caching may have a significant adverse affect on performance. + * Care should be taken to ensure that enough of the L2 cache is left + * unlocked to allow for normal caching of DRAM. + * + * @start: Physical address of the start of the region to lock + * @len: Length (in bytes) of region to lock + * + * Returns Number of requested lines that where not locked. + * 0 on success (all locked) + */ +int cvmx_l2c_lock_mem_region(uint64_t start, uint64_t len); + +/** + * Unlock and flush a cache line from the L2 cache. + * IMPORTANT: Must only be run by one core at a time due to use + * of L2C debug features. + * Note that this function will flush a matching but unlocked cache line. + * (If address is not in L2, no lines are flushed.) + * + * @address: Physical address to unlock + * + * Returns 0: line not unlocked + * 1: line unlocked + */ +int cvmx_l2c_unlock_line(uint64_t address); + +/** + * Unlocks a region of memory that is locked in the L2 cache + * + * @start: start physical address + * @len: length (in bytes) to unlock + * + * Returns Number of locked lines that the call unlocked + */ +int cvmx_l2c_unlock_mem_region(uint64_t start, uint64_t len); + +/** + * Read the L2 controller tag for a given location in L2 + * + * @association: + * Which association to read line from + * @index: Which way to read from. + * + * Returns l2c tag structure for line requested. + */ +union cvmx_l2c_tag cvmx_l2c_get_tag(uint32_t association, uint32_t index); + +/* Wrapper providing a deprecated old function name */ +static inline union cvmx_l2c_tag cvmx_get_l2c_tag(uint32_t association, + uint32_t index) + __attribute__((deprecated)); +static inline union cvmx_l2c_tag cvmx_get_l2c_tag(uint32_t association, + uint32_t index) +{ + return cvmx_l2c_get_tag(association, index); +} + + +/** + * Returns the cache index for a given physical address + * + * @addr: physical address + * + * Returns L2 cache index + */ +uint32_t cvmx_l2c_address_to_index(uint64_t addr); + +/** + * Flushes (and unlocks) the entire L2 cache. + * IMPORTANT: Must only be run by one core at a time due to use + * of L2C debug features. + */ +void cvmx_l2c_flush(void); + +/** + * + * Returns the size of the L2 cache in bytes, + * -1 on error (unrecognized model) + */ +int cvmx_l2c_get_cache_size_bytes(void); + +/** + * Return the number of sets in the L2 Cache + * + * Returns + */ +int cvmx_l2c_get_num_sets(void); + +/** + * Return log base 2 of the number of sets in the L2 cache + * Returns + */ +int cvmx_l2c_get_set_bits(void); +/** + * Return the number of associations in the L2 Cache + * + * Returns + */ +int cvmx_l2c_get_num_assoc(void); + +/** + * Flush a line from the L2 cache + * This should only be called from one core at a time, as this routine + * sets the core to the 'debug' core in order to flush the line. + * + * @assoc: Association (or way) to flush + * @index: Index to flush + */ +void cvmx_l2c_flush_line(uint32_t assoc, uint32_t index); + +#endif /* __CVMX_L2C_H__ */ |