diff options
Diffstat (limited to 'arch/microblaze/Kconfig')
| -rw-r--r-- | arch/microblaze/Kconfig | 53 |
1 files changed, 6 insertions, 47 deletions
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig index 93d459f016fc..f82795592ce5 100644 --- a/arch/microblaze/Kconfig +++ b/arch/microblaze/Kconfig @@ -3,19 +3,17 @@ config MICROBLAZE def_bool y select ARCH_32BIT_OFF_T select ARCH_NO_SWAP - select ARCH_HAS_BINFMT_FLAT if !MMU select ARCH_HAS_DMA_PREP_COHERENT select ARCH_HAS_GCOV_PROFILE_ALL select ARCH_HAS_SYNC_DMA_FOR_CPU select ARCH_HAS_SYNC_DMA_FOR_DEVICE - select ARCH_HAS_DMA_SET_UNCACHED if !MMU select ARCH_MIGHT_HAVE_PC_PARPORT select ARCH_WANT_IPC_PARSE_VERSION select BUILDTIME_TABLE_SORT select TIMER_OF select CLONE_BACKWARDS3 select COMMON_CLK - select DMA_DIRECT_REMAP if MMU + select DMA_DIRECT_REMAP select GENERIC_ATOMIC64 select GENERIC_CPU_DEVICES select GENERIC_IDLE_POLL_SETUP @@ -44,7 +42,7 @@ config MICROBLAZE select TRACING_SUPPORT select VIRT_TO_BUS select CPU_NO_EFFICIENT_FFS - select MMU_GATHER_NO_RANGE if MMU + select MMU_GATHER_NO_RANGE select SPARSE_IRQ select SET_FS @@ -95,8 +93,7 @@ menu "Processor type and features" source "kernel/Kconfig.hz" config MMU - bool "MMU support" - default n + def_bool y comment "Boot options" @@ -142,18 +139,8 @@ config ADVANCED_OPTIONS comment "Default settings for advanced configuration options are used" depends on !ADVANCED_OPTIONS -config XILINX_UNCACHED_SHADOW - bool "Are you using uncached shadow for RAM ?" - depends on ADVANCED_OPTIONS && !MMU - default n - help - This is needed to be able to allocate uncachable memory regions. - The feature requires the design to define the RAM memory controller - window to be twice as large as the actual physical memory. - config HIGHMEM bool "High memory support" - depends on MMU select KMAP_LOCAL help The address space of Microblaze processors is only 4 Gigabytes large @@ -167,7 +154,7 @@ config HIGHMEM config LOWMEM_SIZE_BOOL bool "Set maximum low memory" - depends on ADVANCED_OPTIONS && MMU + depends on ADVANCED_OPTIONS help This option allows you to set the maximum amount of memory which will be used as "low memory", that is, memory which the kernel can @@ -205,12 +192,11 @@ config KERNEL_START_BOOL config KERNEL_START hex "Virtual address of kernel base" if KERNEL_START_BOOL - default "0xc0000000" if MMU - default KERNEL_BASE_ADDR if !MMU + default "0xc0000000" config TASK_SIZE_BOOL bool "Set custom user task size" - depends on ADVANCED_OPTIONS && MMU + depends on ADVANCED_OPTIONS help This option allows you to set the amount of virtual address space allocated to user tasks. This can be useful in optimizing the @@ -222,33 +208,6 @@ config TASK_SIZE hex "Size of user task space" if TASK_SIZE_BOOL default "0x80000000" -choice - prompt "Page size" - default MICROBLAZE_4K_PAGES - depends on ADVANCED_OPTIONS && !MMU - help - Select the kernel logical page size. Increasing the page size - will reduce software overhead at each page boundary, allow - hardware prefetch mechanisms to be more effective, and allow - larger dma transfers increasing IO efficiency and reducing - overhead. However the utilization of memory will increase. - For example, each cached file will using a multiple of the - page size to hold its contents and the difference between the - end of file and the end of page is wasted. - - If unsure, choose 4K_PAGES. - -config MICROBLAZE_4K_PAGES - bool "4k page size" - -config MICROBLAZE_16K_PAGES - bool "16k page size" - -config MICROBLAZE_64K_PAGES - bool "64k page size" - -endchoice - endmenu menu "Bus Options" |