Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) # SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2) config MICROBLAZE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3) 	def_bool y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4) 	select ARCH_32BIT_OFF_T
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5) 	select ARCH_NO_SWAP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6) 	select ARCH_HAS_BINFMT_FLAT if !MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7) 	select ARCH_HAS_DMA_PREP_COHERENT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8) 	select ARCH_HAS_GCOV_PROFILE_ALL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) 	select ARCH_HAS_SYNC_DMA_FOR_CPU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) 	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) 	select ARCH_HAS_DMA_SET_UNCACHED if !MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) 	select ARCH_MIGHT_HAVE_PC_PARPORT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) 	select ARCH_WANT_IPC_PARSE_VERSION
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) 	select BUILDTIME_TABLE_SORT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) 	select TIMER_OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 	select CLONE_BACKWARDS3
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) 	select COMMON_CLK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) 	select DMA_DIRECT_REMAP if MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) 	select GENERIC_ATOMIC64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) 	select GENERIC_CLOCKEVENTS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) 	select GENERIC_CPU_DEVICES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 	select GENERIC_IDLE_POLL_SETUP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) 	select GENERIC_IRQ_PROBE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 	select GENERIC_IRQ_SHOW
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) 	select GENERIC_PCI_IOMAP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 	select GENERIC_SCHED_CLOCK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) 	select HAVE_ARCH_HASH
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) 	select HAVE_ARCH_KGDB
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	select HAVE_ARCH_SECCOMP
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	select HAVE_DEBUG_KMEMLEAK
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 	select HAVE_DMA_CONTIGUOUS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	select HAVE_DYNAMIC_FTRACE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 	select HAVE_FTRACE_MCOUNT_RECORD
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 	select HAVE_FUNCTION_GRAPH_TRACER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	select HAVE_FUNCTION_TRACER
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) 	select HAVE_OPROFILE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 	select HAVE_PCI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) 	select IRQ_DOMAIN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) 	select XILINX_INTC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	select MODULES_USE_ELF_RELA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 	select OF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	select OF_EARLY_FLATTREE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 	select PCI_DOMAINS_GENERIC if PCI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 	select PCI_SYSCALL if PCI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 	select TRACING_SUPPORT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 	select VIRT_TO_BUS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 	select CPU_NO_EFFICIENT_FFS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 	select MMU_GATHER_NO_RANGE if MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 	select SPARSE_IRQ
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 	select SET_FS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) # Endianness selection
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) choice
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 	prompt "Endianness selection"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 	default CPU_LITTLE_ENDIAN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	  microblaze architectures can be configured for either little or
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 	  big endian formats. Be sure to select the appropriate mode.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) config CPU_BIG_ENDIAN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 	bool "Big endian"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) config CPU_LITTLE_ENDIAN
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	bool "Little endian"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) endchoice
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) config ZONE_DMA
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) 	def_bool y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) config ARCH_HAS_ILOG2_U32
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	def_bool n
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) config ARCH_HAS_ILOG2_U64
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) 	def_bool n
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) config GENERIC_HWEIGHT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	def_bool y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) config GENERIC_CALIBRATE_DELAY
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	def_bool y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) config GENERIC_CSUM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	def_bool y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) config STACKTRACE_SUPPORT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	def_bool y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) config LOCKDEP_SUPPORT
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	def_bool y
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) source "arch/microblaze/Kconfig.platform"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) menu "Processor type and features"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) source "kernel/Kconfig.hz"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) config MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	bool "MMU support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	default n
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) comment "Boot options"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) config CMDLINE_BOOL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 	bool "Default bootloader kernel arguments"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) config CMDLINE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 	string "Default kernel command string"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 	depends on CMDLINE_BOOL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	default "console=ttyUL0,115200"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 	  On some architectures there is currently no way for the boot loader
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	  to pass arguments to the kernel. For these architectures, you should
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 	  supply some command-line options at build time by entering them
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	  here.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) config CMDLINE_FORCE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	bool "Force default kernel command string"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	depends on CMDLINE_BOOL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 	default n
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 	  Set this to have arguments from the default kernel command string
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 	  override those passed by the boot loader.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) endmenu
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) menu "Kernel features"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) config NR_CPUS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	default "1"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) config ADVANCED_OPTIONS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	bool "Prompt for advanced kernel configuration options"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 	  This option will enable prompting for a variety of advanced kernel
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	  configuration options.  These options can cause the kernel to not
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	  work if they are set incorrectly, but can be used to optimize certain
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 	  aspects of kernel memory management.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) 	  Unless you know what you are doing, say N here.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) comment "Default settings for advanced configuration options are used"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) 	depends on !ADVANCED_OPTIONS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) config XILINX_UNCACHED_SHADOW
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) 	bool "Are you using uncached shadow for RAM ?"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) 	depends on ADVANCED_OPTIONS && !MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) 	default n
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) 	  This is needed to be able to allocate uncachable memory regions.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) 	  The feature requires the design to define the RAM memory controller
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) 	  window to be twice as large as the actual physical memory.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) config HIGHMEM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) 	bool "High memory support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) 	depends on MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) 	  The address space of Microblaze processors is only 4 Gigabytes large
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) 	  and it has to accommodate user address space, kernel address
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) 	  space as well as some memory mapped IO. That means that, if you
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) 	  have a large amount of physical memory and/or IO, not all of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) 	  memory can be "permanently mapped" by the kernel. The physical
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) 	  memory that is not permanently mapped is called "high memory".
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) 	  If unsure, say n.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) config LOWMEM_SIZE_BOOL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) 	bool "Set maximum low memory"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) 	depends on ADVANCED_OPTIONS && MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) 	  This option allows you to set the maximum amount of memory which
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) 	  will be used as "low memory", that is, memory which the kernel can
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) 	  access directly, without having to set up a kernel virtual mapping.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) 	  This can be useful in optimizing the layout of kernel virtual
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) 	  memory.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) 	  Say N here unless you know what you are doing.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) config LOWMEM_SIZE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) 	hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) 	default "0x30000000"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) config MANUAL_RESET_VECTOR
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) 	hex "Microblaze reset vector address setup"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) 	default "0x0"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) 	  Set this option to have the kernel override the CPU Reset vector.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) 	  If zero, no change will be made to the MicroBlaze reset vector at
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) 	  address 0x0.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) 	  If non-zero, a jump instruction to this address, will be written
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) 	  to the reset vector at address 0x0.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) 	  If you are unsure, set it to default value 0x0.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) config KERNEL_START_BOOL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) 	bool "Set custom kernel base address"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) 	depends on ADVANCED_OPTIONS
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) 	  This option allows you to set the kernel virtual address at which
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) 	  the kernel will map low memory (the kernel image will be linked at
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) 	  this address).  This can be useful in optimizing the virtual memory
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) 	  layout of the system.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) 	  Say N here unless you know what you are doing.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) config KERNEL_START
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) 	hex "Virtual address of kernel base" if KERNEL_START_BOOL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) 	default "0xc0000000" if MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) 	default KERNEL_BASE_ADDR if !MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) config TASK_SIZE_BOOL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) 	bool "Set custom user task size"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) 	depends on ADVANCED_OPTIONS && MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) 	  This option allows you to set the amount of virtual address space
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) 	  allocated to user tasks.  This can be useful in optimizing the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) 	  virtual memory layout of the system.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) 	  Say N here unless you know what you are doing.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) config TASK_SIZE
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) 	hex "Size of user task space" if TASK_SIZE_BOOL
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) 	default "0x80000000"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) choice
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) 	prompt "Page size"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) 	default MICROBLAZE_4K_PAGES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) 	depends on ADVANCED_OPTIONS && !MMU
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) 	help
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) 	  Select the kernel logical page size. Increasing the page size
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) 	  will reduce software overhead at each page boundary, allow
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) 	  hardware prefetch mechanisms to be more effective, and allow
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) 	  larger dma transfers increasing IO efficiency and reducing
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) 	  overhead. However the utilization of memory will increase.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) 	  For example, each cached file will using a multiple of the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) 	  page size to hold its contents and the difference between the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) 	  end of file and the end of page is wasted.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) 	  If unsure, choose 4K_PAGES.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) config MICROBLAZE_4K_PAGES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) 	bool "4k page size"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) config MICROBLAZE_16K_PAGES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) 	bool "16k page size"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) config MICROBLAZE_64K_PAGES
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) 	bool "64k page size"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) endchoice
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) endmenu
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) menu "Bus Options"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) config PCI_XILINX
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) 	bool "Xilinx PCI host bridge support"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) 	depends on PCI
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) endmenu