Current File : //lib/modules/3.10.0-1160.88.1.el7.centos.plus.x86_64/source/arch/mips/cavium-octeon/Kconfig
if CPU_CAVIUM_OCTEON
config CAVIUM_CN63XXP1
bool "Enable CN63XXP1 errata worarounds"
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_2ND_KERNEL
bool "Build the kernel to be used as a 2nd kernel on the same chip"
default "n"
help
This option configures this kernel to be linked at a different
address and use the 2nd uart for output. This allows a kernel built
with this option to be run at the same time as one built without this
option.
config CAVIUM_OCTEON_HW_FIX_UNALIGNED
bool "Enable hardware fixups of unaligned loads and stores"
default "y"
help
Configure the Octeon hardware to automatically fix unaligned loads
and stores. Normally unaligned accesses are fixed using a kernel
exception handler. This option enables the hardware automatic fixups,
which requires only an extra 3 cycles. Disable this option if you
are running code that relies on address exceptions on unaligned
accesses.
config CAVIUM_OCTEON_CVMSEG_SIZE
int "Number of L1 cache lines reserved for CVMSEG memory"
range 0 54
default 1
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 and 6192 bytes).
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 IOMMU_HELPER
bool
config NEED_SG_DMA_LENGTH
bool
config SWIOTLB
def_bool y
select IOMMU_HELPER
select NEED_SG_DMA_LENGTH
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 # CPU_CAVIUM_OCTEON
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