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| author | Helge Deller <deller@parisc-linux.org> | 2006-04-20 20:40:23 +0000 |
|---|---|---|
| committer | Kyle McMartin <kyle@hera.kernel.org> | 2006-04-21 22:20:34 +0000 |
| commit | 2fd83038160531245099c3c5b3511fa4b80765eb (patch) | |
| tree | 6145a9e78723c76ceac722eb60267c0116983c12 /arch/parisc/Kconfig | |
| parent | d668da80d613def981c573354e1853e38bd0698d (diff) | |
| download | blackbird-obmc-linux-2fd83038160531245099c3c5b3511fa4b80765eb.tar.gz blackbird-obmc-linux-2fd83038160531245099c3c5b3511fa4b80765eb.zip | |
[PARISC] Further work for multiple page sizes
More work towards supporing multiple page sizes on 64-bit. Convert
some assumptions that 64bit uses 3 level page tables into testing
PT_NLEVELS. Also some BUG() to BUG_ON() conversions and some cleanups
to assembler.
Signed-off-by: Helge Deller <deller@parisc-linux.org>
Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
Diffstat (limited to 'arch/parisc/Kconfig')
| -rw-r--r-- | arch/parisc/Kconfig | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig index 19f911c5dd58..910fb3afc0b5 100644 --- a/arch/parisc/Kconfig +++ b/arch/parisc/Kconfig @@ -138,6 +138,37 @@ config 64BIT enable this option otherwise. The 64bit kernel is significantly bigger and slower than the 32bit one. +choice + prompt "Kernel page size" + default PARISC_PAGE_SIZE_4KB if !64BIT + default PARISC_PAGE_SIZE_4KB if 64BIT +# default PARISC_PAGE_SIZE_16KB if 64BIT + +config PARISC_PAGE_SIZE_4KB + bool "4KB" + help + This lets you select the page size of the kernel. For best + performance, a page size of 16KB is recommended. For best + compatibility with 32bit applications, a page size of 4KB should be + selected (the vast majority of 32bit binaries work perfectly fine + with a larger page size). + + 4KB For best 32bit compatibility + 16KB For best performance + 64KB For best performance, might give more overhead. + + If you don't know what to do, choose 4KB. + +config PARISC_PAGE_SIZE_16KB + bool "16KB (EXPERIMENTAL)" + depends on PA8X00 && EXPERIMENTAL + +config PARISC_PAGE_SIZE_64KB + bool "64KB (EXPERIMENTAL)" + depends on PA8X00 && EXPERIMENTAL + +endchoice + config SMP bool "Symmetric multi-processing support" ---help--- |
