4 bool "Enable CN63XXP1 errata worarounds"
7 The CN63XXP1 chip requires build time workarounds to
8 function reliably, select this option to enable them. These
9 workarounds will cause a slight decrease in performance on
10 non-CN63XXP1 hardware, so it is recommended to select "n"
11 unless it is known the workarounds are needed.
13 config CAVIUM_OCTEON_2ND_KERNEL
14 bool "Build the kernel to be used as a 2nd kernel on the same chip"
17 This option configures this kernel to be linked at a different
18 address and use the 2nd uart for output. This allows a kernel built
19 with this option to be run at the same time as one built without this
22 config CAVIUM_OCTEON_HW_FIX_UNALIGNED
23 bool "Enable hardware fixups of unaligned loads and stores"
26 Configure the Octeon hardware to automatically fix unaligned loads
27 and stores. Normally unaligned accesses are fixed using a kernel
28 exception handler. This option enables the hardware automatic fixups,
29 which requires only an extra 3 cycles. Disable this option if you
30 are running code that relies on address exceptions on unaligned
33 config CAVIUM_OCTEON_CVMSEG_SIZE
34 int "Number of L1 cache lines reserved for CVMSEG memory"
38 CVMSEG LM is a segment that accesses portions of the dcache as a
39 local memory; the larger CVMSEG is, the smaller the cache is.
40 This selects the size of CVMSEG LM, which is in cache blocks. The
41 legally range is from zero to 54 cache blocks (i.e. CVMSEG LM is
42 between zero and 6192 bytes).
44 config CAVIUM_OCTEON_LOCK_L2
45 bool "Lock often used kernel code in the L2"
48 Enable locking parts of the kernel into the L2 cache.
50 config CAVIUM_OCTEON_LOCK_L2_TLB
51 bool "Lock the TLB handler in L2"
52 depends on CAVIUM_OCTEON_LOCK_L2
55 Lock the low level TLB fast path into L2.
57 config CAVIUM_OCTEON_LOCK_L2_EXCEPTION
58 bool "Lock the exception handler in L2"
59 depends on CAVIUM_OCTEON_LOCK_L2
62 Lock the low level exception handler into L2.
64 config CAVIUM_OCTEON_LOCK_L2_LOW_LEVEL_INTERRUPT
65 bool "Lock the interrupt handler in L2"
66 depends on CAVIUM_OCTEON_LOCK_L2
69 Lock the low level interrupt handler into L2.
71 config CAVIUM_OCTEON_LOCK_L2_INTERRUPT
72 bool "Lock the 2nd level interrupt handler in L2"
73 depends on CAVIUM_OCTEON_LOCK_L2
76 Lock the 2nd level interrupt handler in L2.
78 config CAVIUM_OCTEON_LOCK_L2_MEMCPY
79 bool "Lock memcpy() in L2"
80 depends on CAVIUM_OCTEON_LOCK_L2
83 Lock the kernel's implementation of memcpy() into L2.
85 config ARCH_SPARSEMEM_ENABLE
87 select SPARSEMEM_STATIC
92 config NEED_SG_DMA_LENGTH
98 select NEED_SG_DMA_LENGTH
101 endif # CPU_CAVIUM_OCTEON