| David Daney | 23a271e | 2011-02-17 18:23:32 -0800 | [diff] [blame] | 1 | if CPU_CAVIUM_OCTEON |
| David Daney | 5b3b168 | 2009-01-08 16:46:40 -0800 | [diff] [blame] | 2 | |
| David Daney | c994115 | 2010-10-07 16:03:53 -0700 | [diff] [blame] | 3 | config CAVIUM_CN63XXP1 |
| 4 | bool "Enable CN63XXP1 errata worarounds" |
| David Daney | c994115 | 2010-10-07 16:03:53 -0700 | [diff] [blame] | 5 | default "n" |
| 6 | help |
| 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. |
| 12 | |
| David Daney | 5b3b168 | 2009-01-08 16:46:40 -0800 | [diff] [blame] | 13 | config CAVIUM_OCTEON_2ND_KERNEL |
| 14 | bool "Build the kernel to be used as a 2nd kernel on the same chip" |
| David Daney | 5b3b168 | 2009-01-08 16:46:40 -0800 | [diff] [blame] | 15 | default "n" |
| 16 | help |
| 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 |
| 20 | option. |
| 21 | |
| 22 | config CAVIUM_OCTEON_HW_FIX_UNALIGNED |
| 23 | bool "Enable hardware fixups of unaligned loads and stores" |
| David Daney | 5b3b168 | 2009-01-08 16:46:40 -0800 | [diff] [blame] | 24 | default "y" |
| 25 | help |
| 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 |
| 31 | accesses. |
| 32 | |
| 33 | config CAVIUM_OCTEON_CVMSEG_SIZE |
| 34 | int "Number of L1 cache lines reserved for CVMSEG memory" |
| David Daney | 5b3b168 | 2009-01-08 16:46:40 -0800 | [diff] [blame] | 35 | range 0 54 |
| 36 | default 1 |
| 37 | help |
| 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). |
| 43 | |
| 44 | config CAVIUM_OCTEON_LOCK_L2 |
| 45 | bool "Lock often used kernel code in the L2" |
| David Daney | 5b3b168 | 2009-01-08 16:46:40 -0800 | [diff] [blame] | 46 | default "y" |
| 47 | help |
| 48 | Enable locking parts of the kernel into the L2 cache. |
| 49 | |
| 50 | config CAVIUM_OCTEON_LOCK_L2_TLB |
| 51 | bool "Lock the TLB handler in L2" |
| 52 | depends on CAVIUM_OCTEON_LOCK_L2 |
| 53 | default "y" |
| 54 | help |
| 55 | Lock the low level TLB fast path into L2. |
| 56 | |
| 57 | config CAVIUM_OCTEON_LOCK_L2_EXCEPTION |
| 58 | bool "Lock the exception handler in L2" |
| 59 | depends on CAVIUM_OCTEON_LOCK_L2 |
| 60 | default "y" |
| 61 | help |
| 62 | Lock the low level exception handler into L2. |
| 63 | |
| 64 | config CAVIUM_OCTEON_LOCK_L2_LOW_LEVEL_INTERRUPT |
| 65 | bool "Lock the interrupt handler in L2" |
| 66 | depends on CAVIUM_OCTEON_LOCK_L2 |
| 67 | default "y" |
| 68 | help |
| 69 | Lock the low level interrupt handler into L2. |
| 70 | |
| 71 | config CAVIUM_OCTEON_LOCK_L2_INTERRUPT |
| 72 | bool "Lock the 2nd level interrupt handler in L2" |
| 73 | depends on CAVIUM_OCTEON_LOCK_L2 |
| 74 | default "y" |
| 75 | help |
| 76 | Lock the 2nd level interrupt handler in L2. |
| 77 | |
| 78 | config CAVIUM_OCTEON_LOCK_L2_MEMCPY |
| 79 | bool "Lock memcpy() in L2" |
| 80 | depends on CAVIUM_OCTEON_LOCK_L2 |
| 81 | default "y" |
| 82 | help |
| 83 | Lock the kernel's implementation of memcpy() into L2. |
| 84 | |
| 85 | config ARCH_SPARSEMEM_ENABLE |
| 86 | def_bool y |
| 87 | select SPARSEMEM_STATIC |
| Andreas Bießmann | 1ec0e73 | 2010-08-11 18:49:53 +0200 | [diff] [blame] | 88 | |
| David Daney | b93b2ab | 2010-10-01 13:27:34 -0700 | [diff] [blame] | 89 | config IOMMU_HELPER |
| 90 | bool |
| 91 | |
| 92 | config NEED_SG_DMA_LENGTH |
| 93 | bool |
| 94 | |
| 95 | config SWIOTLB |
| 96 | def_bool y |
| David Daney | b93b2ab | 2010-10-01 13:27:34 -0700 | [diff] [blame] | 97 | select IOMMU_HELPER |
| 98 | select NEED_SG_DMA_LENGTH |
| David Daney | 23a271e | 2011-02-17 18:23:32 -0800 | [diff] [blame] | 99 | |
| 100 | |
| 101 | endif # CPU_CAVIUM_OCTEON |