diff options
Diffstat (limited to 'arch/microblaze/Kconfig')
| -rw-r--r-- | arch/microblaze/Kconfig | 100 |
1 files changed, 22 insertions, 78 deletions
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig index 5f46ebe7bfe3..f18ec02ddeb2 100644 --- a/arch/microblaze/Kconfig +++ b/arch/microblaze/Kconfig @@ -3,36 +3,35 @@ 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_UNCACHED_SEGMENT if !MMU select ARCH_MIGHT_HAVE_PC_PARPORT select ARCH_WANT_IPC_PARSE_VERSION - select BUILDTIME_EXTABLE_SORT + 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_CLOCKEVENTS select GENERIC_CPU_DEVICES select GENERIC_IDLE_POLL_SETUP select GENERIC_IRQ_PROBE select GENERIC_IRQ_SHOW select GENERIC_PCI_IOMAP select GENERIC_SCHED_CLOCK + select HAS_IOPORT if PCI select HAVE_ARCH_HASH select HAVE_ARCH_KGDB + select HAVE_ARCH_SECCOMP select HAVE_DEBUG_KMEMLEAK + select HAVE_DMA_CONTIGUOUS select HAVE_DYNAMIC_FTRACE select HAVE_FTRACE_MCOUNT_RECORD select HAVE_FUNCTION_GRAPH_TRACER select HAVE_FUNCTION_TRACER - select HAVE_MEMBLOCK_NODE_MAP - select HAVE_OPROFILE + select HAVE_PAGE_SIZE_4KB select HAVE_PCI select IRQ_DOMAIN select XILINX_INTC @@ -41,11 +40,12 @@ config MICROBLAZE select OF_EARLY_FLATTREE select PCI_DOMAINS_GENERIC if PCI select PCI_SYSCALL if PCI - 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 ZONE_DMA + select TRACE_IRQFLAGS_SUPPORT + select GENERIC_IRQ_MULTI_HANDLER # Endianness selection choice @@ -63,9 +63,6 @@ config CPU_LITTLE_ENDIAN endchoice -config ZONE_DMA - def_bool y - config ARCH_HAS_ILOG2_U32 def_bool n @@ -94,8 +91,7 @@ menu "Processor type and features" source "kernel/Kconfig.hz" config MMU - bool "MMU support" - default n + def_bool y comment "Boot options" @@ -120,23 +116,6 @@ config CMDLINE_FORCE Set this to have arguments from the default kernel command string override those passed by the boot loader. -config SECCOMP - bool "Enable seccomp to safely compute untrusted bytecode" - depends on PROC_FS - default y - help - This kernel feature is useful for number crunching applications - that may need to compute untrusted bytecode during their - execution. By using pipes or other transports made available to - the process as file descriptors supporting the read/write - syscalls, it's possible to isolate those applications in - their own address space using seccomp. Once seccomp is - enabled via /proc/<pid>/seccomp, it cannot be disabled - and the task is only allowed to execute a few safe syscalls - defined by each seccomp mode. - - If unsure, say Y. Only embedded should say N here. - endmenu menu "Kernel features" @@ -158,18 +137,9 @@ 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 and it has to accommodate user address space, kernel address @@ -182,7 +152,7 @@ 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 @@ -220,12 +190,11 @@ 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 @@ -237,39 +206,14 @@ 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 +config MB_MANAGER + bool "Support for Microblaze Manager" + depends on ADVANCED_OPTIONS 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" + This option enables API for configuring the MicroBlaze manager + control register, which is consumed by the break handler to + block the break. -config MICROBLAZE_16K_PAGES - bool "16k page size" - -config MICROBLAZE_64K_PAGES - bool "64k page size" - -endchoice - -endmenu - -menu "Bus Options" - -config PCI_XILINX - bool "Xilinx PCI host bridge support" - depends on PCI + Say N here unless you know what you are doing. endmenu |