1 config CAVIUM_OCTEON_SPECIFIC_OPTIONS
2 bool "Enable Octeon specific options"
3 depends on CPU_CAVIUM_OCTEON
7 bool "Enable CN63XXP1 errata worarounds"
8 depends on CAVIUM_OCTEON_SPECIFIC_OPTIONS
11 The CN63XXP1 chip requires build time workarounds to
12 function reliably, select this option to enable them. These
13 workarounds will cause a slight decrease in performance on
14 non-CN63XXP1 hardware, so it is recommended to select "n"
15 unless it is known the workarounds are needed.
17 config CAVIUM_OCTEON_2ND_KERNEL
18 bool "Build the kernel to be used as a 2nd kernel on the same chip"
19 depends on CAVIUM_OCTEON_SPECIFIC_OPTIONS
22 This option configures this kernel to be linked at a different
23 address and use the 2nd uart for output. This allows a kernel built
24 with this option to be run at the same time as one built without this
27 config CAVIUM_OCTEON_HW_FIX_UNALIGNED
28 bool "Enable hardware fixups of unaligned loads and stores"
29 depends on CAVIUM_OCTEON_SPECIFIC_OPTIONS
32 Configure the Octeon hardware to automatically fix unaligned loads
33 and stores. Normally unaligned accesses are fixed using a kernel
34 exception handler. This option enables the hardware automatic fixups,
35 which requires only an extra 3 cycles. Disable this option if you
36 are running code that relies on address exceptions on unaligned
39 config CAVIUM_OCTEON_CVMSEG_SIZE
40 int "Number of L1 cache lines reserved for CVMSEG memory"
41 depends on CAVIUM_OCTEON_SPECIFIC_OPTIONS
45 CVMSEG LM is a segment that accesses portions of the dcache as a
46 local memory; the larger CVMSEG is, the smaller the cache is.
47 This selects the size of CVMSEG LM, which is in cache blocks. The
48 legally range is from zero to 54 cache blocks (i.e. CVMSEG LM is
49 between zero and 6192 bytes).
51 config CAVIUM_OCTEON_LOCK_L2
52 bool "Lock often used kernel code in the L2"
53 depends on CAVIUM_OCTEON_SPECIFIC_OPTIONS
56 Enable locking parts of the kernel into the L2 cache.
58 config CAVIUM_OCTEON_LOCK_L2_TLB
59 bool "Lock the TLB handler in L2"
60 depends on CAVIUM_OCTEON_LOCK_L2
63 Lock the low level TLB fast path into L2.
65 config CAVIUM_OCTEON_LOCK_L2_EXCEPTION
66 bool "Lock the exception handler in L2"
67 depends on CAVIUM_OCTEON_LOCK_L2
70 Lock the low level exception handler into L2.
72 config CAVIUM_OCTEON_LOCK_L2_LOW_LEVEL_INTERRUPT
73 bool "Lock the interrupt handler in L2"
74 depends on CAVIUM_OCTEON_LOCK_L2
77 Lock the low level interrupt handler into L2.
79 config CAVIUM_OCTEON_LOCK_L2_INTERRUPT
80 bool "Lock the 2nd level interrupt handler in L2"
81 depends on CAVIUM_OCTEON_LOCK_L2
84 Lock the 2nd level interrupt handler in L2.
86 config CAVIUM_OCTEON_LOCK_L2_MEMCPY
87 bool "Lock memcpy() in L2"
88 depends on CAVIUM_OCTEON_LOCK_L2
91 Lock the kernel's implementation of memcpy() into L2.
93 config ARCH_SPARSEMEM_ENABLE
95 select SPARSEMEM_STATIC
96 depends on CPU_CAVIUM_OCTEON
98 config CAVIUM_OCTEON_HELPER
100 depends on OCTEON_ETHERNET || PCI
105 config NEED_SG_DMA_LENGTH
110 depends on CPU_CAVIUM_OCTEON
112 select NEED_SG_DMA_LENGTH