1 # SPDX-License-Identifier: GPL-2.0
5 bool "Enable CN63XXP1 errata workarounds"
8 The CN63XXP1 chip requires build time workarounds to
9 function reliably, select this option to enable them. These
10 workarounds will cause a slight decrease in performance on
11 non-CN63XXP1 hardware, so it is recommended to select "n"
12 unless it is known the workarounds are needed.
14 config CAVIUM_OCTEON_CVMSEG_SIZE
15 int "Number of L1 cache lines reserved for CVMSEG memory"
19 CVMSEG LM is a segment that accesses portions of the dcache as a
20 local memory; the larger CVMSEG is, the smaller the cache is.
21 This selects the size of CVMSEG LM, which is in cache blocks. The
22 legally range is from zero to 54 cache blocks (i.e. CVMSEG LM is
23 between zero and 6192 bytes).
25 endif # CPU_CAVIUM_OCTEON
29 config CAVIUM_OCTEON_LOCK_L2
30 bool "Lock often used kernel code in the L2"
33 Enable locking parts of the kernel into the L2 cache.
35 config CAVIUM_OCTEON_LOCK_L2_TLB
36 bool "Lock the TLB handler in L2"
37 depends on CAVIUM_OCTEON_LOCK_L2
40 Lock the low level TLB fast path into L2.
42 config CAVIUM_OCTEON_LOCK_L2_EXCEPTION
43 bool "Lock the exception handler in L2"
44 depends on CAVIUM_OCTEON_LOCK_L2
47 Lock the low level exception handler into L2.
49 config CAVIUM_OCTEON_LOCK_L2_LOW_LEVEL_INTERRUPT
50 bool "Lock the interrupt handler in L2"
51 depends on CAVIUM_OCTEON_LOCK_L2
54 Lock the low level interrupt handler into L2.
56 config CAVIUM_OCTEON_LOCK_L2_INTERRUPT
57 bool "Lock the 2nd level interrupt handler in L2"
58 depends on CAVIUM_OCTEON_LOCK_L2
61 Lock the 2nd level interrupt handler in L2.
63 config CAVIUM_OCTEON_LOCK_L2_MEMCPY
64 bool "Lock memcpy() in L2"
65 depends on CAVIUM_OCTEON_LOCK_L2
68 Lock the kernel's implementation of memcpy() into L2.
73 config NEED_SG_DMA_LENGTH
79 select NEED_SG_DMA_LENGTH
82 tristate "Module to measure interrupt latency using Octeon CIU Timer"
84 This driver is a module to measure interrupt latency using the
85 the CIU Timers on Octeon.
87 To compile this driver as a module, choose M here. The module
88 will be called octeon-ilm
90 endif # CAVIUM_OCTEON_SOC