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Diffstat (limited to 'arch/powerpc/platforms/ps3/Kconfig')
| -rw-r--r-- | arch/powerpc/platforms/ps3/Kconfig | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/ps3/Kconfig b/arch/powerpc/platforms/ps3/Kconfig new file mode 100644 index 00000000000000..f023719f6459c3 --- /dev/null +++ b/arch/powerpc/platforms/ps3/Kconfig @@ -0,0 +1,32 @@ +menu "PS3 Platform Options" + depends on PPC_PS3 + +config PS3_HTAB_SIZE + depends on PPC_PS3 + int "PS3 Platform pagetable size" + range 18 20 + default 20 + help + This option is only for experts who may have the desire to fine + tune the pagetable size on their system. The value here is + expressed as the log2 of the page table size. Valid values are + 18, 19, and 20, corresponding to 256KB, 512KB and 1MB respectively. + + If unsure, choose the default (20) with the confidence that your + system will have optimal runtime performance. + +config PS3_DYNAMIC_DMA + depends on PPC_PS3 && EXPERIMENTAL + bool "PS3 Platform dynamic DMA page table management" + default n + help + This option will enable kernel support to take advantage of the + per device dynamic DMA page table management provided by the Cell + processor's IO Controller. This support incurs some runtime + overhead and also slightly increases kernel memory usage. The + current implementation should be considered experimental. + + This support is mainly for Linux kernel development. If unsure, + say N. + +endmenu |