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| author | David S. Miller <davem@davemloft.net> | 2012-04-10 14:30:45 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-04-10 14:30:45 -0400 |
| commit | 06eb4eafbdc0796d741d139a44f1253278da8611 (patch) | |
| tree | fbdb44317130c371928154c9e6903e699fe2b995 /arch/microblaze/Kconfig | |
| parent | 32ed53b83ea5ec26a4dba90e18f5e0ff6c71eb48 (diff) | |
| parent | f68e556e23d1a4176b563bcb25d8baf2c5313f91 (diff) | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Diffstat (limited to 'arch/microblaze/Kconfig')
| -rw-r--r-- | arch/microblaze/Kconfig | 33 |
1 files changed, 21 insertions, 12 deletions
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig index 11060fa87da..ac22dc7f4ca 100644 --- a/arch/microblaze/Kconfig +++ b/arch/microblaze/Kconfig @@ -1,6 +1,7 @@ config MICROBLAZE def_bool y select HAVE_MEMBLOCK + select HAVE_MEMBLOCK_NODE_MAP select HAVE_FUNCTION_TRACER select HAVE_FUNCTION_TRACE_MCOUNT_TEST select HAVE_FUNCTION_GRAPH_TRACER @@ -28,6 +29,12 @@ config SWAP config RWSEM_GENERIC_SPINLOCK def_bool y +config ZONE_DMA + def_bool y + +config ARCH_POPULATES_NODE_MAP + def_bool y + config RWSEM_XCHGADD_ALGORITHM bool @@ -153,20 +160,18 @@ config XILINX_UNCACHED_SHADOW The feature requires the design to define the RAM memory controller window to be twice as large as the actual physical memory. -config HIGHMEM_START_BOOL - bool "Set high memory pool address" - depends on ADVANCED_OPTIONS && HIGHMEM +config HIGHMEM + bool "High memory support" + depends on MMU help - This option allows you to set the base address of the kernel virtual - area used to map high memory pages. This can be useful in - optimizing the layout of kernel virtual memory. + The address space of Microblaze processors is only 4 Gigabytes large + and it has to accommodate user address space, kernel address + space as well as some memory mapped IO. That means that, if you + have a large amount of physical memory and/or IO, not all of the + memory can be "permanently mapped" by the kernel. The physical + memory that is not permanently mapped is called "high memory". - Say N here unless you know what you are doing. - -config HIGHMEM_START - hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL - depends on MMU - default "0xfe000000" + If unsure, say n. config LOWMEM_SIZE_BOOL bool "Set maximum low memory" @@ -255,6 +260,10 @@ config MICROBLAZE_32K_PAGES endchoice +config KERNEL_PAD + hex "Kernel PAD for unpacking" if ADVANCED_OPTIONS + default "0x80000" if MMU + endmenu source "mm/Kconfig" |