# SPDX-License-Identifier: GPL-2.0 if CPU_CAVIUM_OCTEON
config CAVIUM_CN63XXP1 bool"Enable CN63XXP1 errata workarounds" default"n"
help
The CN63XXP1 chip requires build time workarounds to
function reliably, select this option to enable them. These
workarounds will cause a slight decrease in performance on
non-CN63XXP1 hardware, so it is recommended to select "n"
unless it is known the workarounds are needed.
config CAVIUM_OCTEON_CVMSEG_SIZE int"Number of L1 cache lines reserved for CVMSEG memory"
range 054 default0if !CAVIUM_OCTEON_SOC default1if CAVIUM_OCTEON_SOC
help
CVMSEG LM is a segment that accesses portions of the dcache as a
local memory; the larger CVMSEG is, the smaller the cache is. This selects the size of CVMSEG LM, which is in cache blocks. The
legally range is from zero to 54 cache blocks (i.e. CVMSEG LM is
between zero and6192 bytes).
endif # CPU_CAVIUM_OCTEON
if CAVIUM_OCTEON_SOC
config CAVIUM_OCTEON_LOCK_L2 bool"Lock often used kernel code in the L2" default"y"
help
Enable locking parts of the kernel into the L2 cache.
config CAVIUM_OCTEON_LOCK_L2_TLB bool"Lock the TLB handler in L2"
depends on CAVIUM_OCTEON_LOCK_L2 default"y"
help
Lock the low level TLB fast path into L2.
config CAVIUM_OCTEON_LOCK_L2_EXCEPTION bool"Lock the exception handler in L2"
depends on CAVIUM_OCTEON_LOCK_L2 default"y"
help
Lock the low level exception handler into L2.
config CAVIUM_OCTEON_LOCK_L2_LOW_LEVEL_INTERRUPT bool"Lock the interrupt handler in L2"
depends on CAVIUM_OCTEON_LOCK_L2 default"y"
help
Lock the low level interrupt handler into L2.
config CAVIUM_OCTEON_LOCK_L2_INTERRUPT bool"Lock the 2nd level interrupt handler in L2"
depends on CAVIUM_OCTEON_LOCK_L2 default"y"
help
Lock the 2nd level interrupt handler in L2.
config CAVIUM_OCTEON_LOCK_L2_MEMCPY bool"Lock memcpy() in L2"
depends on CAVIUM_OCTEON_LOCK_L2 default"y"
help
Lock the kernel's implementation of memcpy() into L2.
config CAVIUM_RESERVE32 int"Memory to reserve for user processes shared region (MB)"
range 01536 default"0"
help
Reserve a shared memory region for user processes to use for hardware
memory buffers. This is required for32bit applications to be able to
send and receive packets directly. Applications access this memory by
memory mapping /dev/mem for the addresses in /proc/octeon_info. For
optimal performance with HugeTLBs, keep this size an even number of
megabytes.
config OCTEON_ILM
tristate "Module to measure interrupt latency using Octeon CIU Timer"
help This driver is a module to measure interrupt latency using the
the CIU Timers on Octeon.
To compile this driver as a module, choose M here. The module
will be called octeon-ilm
endif # CAVIUM_OCTEON_SOC
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