blob: 8370114e78aa4cea65a3ab5c44abbd19c4d39236 [file] [log] [blame]
Michal Simek575ca282009-03-27 14:25:50 +01001config MICROBLAZE
2 def_bool y
Mark Salter355f65a2013-10-07 22:12:28 -04003 select ARCH_MIGHT_HAVE_PC_PARPORT
Yinghai Lu95f72d12010-07-12 14:36:09 +10004 select HAVE_MEMBLOCK
Michal Simekbaab8a82011-12-15 15:47:16 +01005 select HAVE_MEMBLOCK_NODE_MAP
Michal Simek2fd7c762009-11-16 09:40:14 +01006 select HAVE_FUNCTION_TRACER
Michal Simek6d9e60c2009-11-16 09:55:08 +01007 select HAVE_FUNCTION_TRACE_MCOUNT_TEST
Michal Simeka0d3e662009-11-16 10:32:10 +01008 select HAVE_FUNCTION_GRAPH_TRACER
Michal Simek7d241ff2009-12-10 14:15:44 +01009 select HAVE_DYNAMIC_FTRACE
10 select HAVE_FTRACE_MCOUNT_RECORD
Michal Simek6fa612b2009-05-11 15:49:12 +020011 select ARCH_WANT_OPTIONAL_GPIOLIB
John Williams3540ce82009-11-24 20:27:54 +100012 select HAVE_OPROFILE
Michal Simek2d5973c2010-08-03 11:45:08 +020013 select HAVE_ARCH_KGDB
Michal Simekccfe27d2010-01-14 11:21:02 +010014 select HAVE_DMA_ATTRS
15 select HAVE_DMA_API_DEBUG
John Williams3540ce82009-11-24 20:27:54 +100016 select TRACING_SUPPORT
Stephen Rothwellae5bf632010-06-29 12:42:00 +100017 select OF
Stephen Neuendorffere6ce1322010-11-18 15:54:56 -080018 select OF_EARLY_FLATTREE
Will Deaconc1d7e012012-07-30 14:42:46 -070019 select ARCH_WANT_IPC_PARSE_VERSION
Catalin Marinasb69ec422012-10-08 16:28:11 -070020 select HAVE_DEBUG_KMEMLEAK
Grant Likely2462bac2012-01-26 14:10:13 -070021 select IRQ_DOMAIN
Stephen Rothwell4febd952013-03-07 15:48:16 +110022 select VIRT_TO_BUS
Thomas Gleixnerb6e31622011-01-19 20:35:05 +010023 select GENERIC_IRQ_PROBE
Thomas Gleixner9d61c182011-03-24 14:55:52 +010024 select GENERIC_IRQ_SHOW
Michael S. Tsirkin1b34d162011-11-24 21:06:41 +020025 select GENERIC_PCI_IOMAP
Ben Hutchings9f13a1f2012-01-10 03:04:32 +000026 select GENERIC_CPU_DEVICES
Daniel Borkmanneacb6ec2012-01-19 12:37:13 +010027 select GENERIC_ATOMIC64
Anna-Maria Gleixnerd6412e22012-05-18 16:45:49 +000028 select GENERIC_CLOCKEVENTS
Thomas Gleixnere962bb92013-03-21 22:49:51 +010029 select GENERIC_IDLE_POLL_SETUP
David Howells786d35d2012-09-28 14:31:03 +093030 select MODULES_USE_ELF_RELA
Michal Simekdfa97712013-08-13 16:00:53 -070031 select CLONE_BACKWARDS3
Michal Simek4bcd9432013-08-27 11:13:29 +020032 select CLKSRC_OF
Michal Simek575ca282009-03-27 14:25:50 +010033
34config SWAP
35 def_bool n
36
37config RWSEM_GENERIC_SPINLOCK
38 def_bool y
39
Michal Simek4e2e4122011-12-15 09:24:06 +010040config ZONE_DMA
41 def_bool y
42
Michal Simek575ca282009-03-27 14:25:50 +010043config RWSEM_XCHGADD_ALGORITHM
44 bool
45
46config ARCH_HAS_ILOG2_U32
47 def_bool n
48
49config ARCH_HAS_ILOG2_U64
50 def_bool n
51
Michal Simek575ca282009-03-27 14:25:50 +010052config GENERIC_HWEIGHT
53 def_bool y
54
Michal Simek575ca282009-03-27 14:25:50 +010055config GENERIC_CALIBRATE_DELAY
56 def_bool y
57
Remis Lima Baima14f87382009-06-18 19:55:32 +020058config GENERIC_CSUM
59 def_bool y
60
Michal Simek24b45a12009-11-10 15:57:01 +010061config STACKTRACE_SUPPORT
62 def_bool y
63
Michal Simekbf2d8092009-12-10 12:07:02 +010064config LOCKDEP_SUPPORT
65 def_bool y
66
Michal Simekfb5a32d2009-11-16 09:09:47 +010067config HAVE_LATENCYTOP_SUPPORT
68 def_bool y
69
Michal Simek575ca282009-03-27 14:25:50 +010070source "init/Kconfig"
71
72source "kernel/Kconfig.freezer"
73
74source "arch/microblaze/platform/Kconfig.platform"
75
76menu "Processor type and features"
77
Michal Simek575ca282009-03-27 14:25:50 +010078source "kernel/Kconfig.preempt"
79
80source "kernel/Kconfig.hz"
81
82config MMU
Michal Simeka116f6d2009-05-26 16:30:31 +020083 bool "MMU support"
84 default n
Michal Simek575ca282009-03-27 14:25:50 +010085
86config NO_MMU
87 bool
88 depends on !MMU
89 default y
90
91comment "Boot options"
92
93config CMDLINE_BOOL
94 bool "Default bootloader kernel arguments"
95
96config CMDLINE
97 string "Default kernel command string"
98 depends on CMDLINE_BOOL
99 default "console=ttyUL0,115200"
100 help
101 On some architectures there is currently no way for the boot loader
102 to pass arguments to the kernel. For these architectures, you should
103 supply some command-line options at build time by entering them
104 here.
105
106config CMDLINE_FORCE
107 bool "Force default kernel command string"
108 depends on CMDLINE_BOOL
109 default n
110 help
111 Set this to have arguments from the default kernel command string
112 override those passed by the boot loader.
113
Michal Simek68c6ac32010-08-06 08:50:35 +0200114config SECCOMP
115 bool "Enable seccomp to safely compute untrusted bytecode"
116 depends on PROC_FS
117 default y
118 help
119 This kernel feature is useful for number crunching applications
120 that may need to compute untrusted bytecode during their
121 execution. By using pipes or other transports made available to
122 the process as file descriptors supporting the read/write
123 syscalls, it's possible to isolate those applications in
124 their own address space using seccomp. Once seccomp is
125 enabled via /proc/<pid>/seccomp, it cannot be disabled
126 and the task is only allowed to execute a few safe syscalls
127 defined by each seccomp mode.
128
129 If unsure, say Y. Only embedded should say N here.
130
Michal Simek575ca282009-03-27 14:25:50 +0100131endmenu
132
Michal Simeka116f6d2009-05-26 16:30:31 +0200133menu "Advanced setup"
134
135config ADVANCED_OPTIONS
136 bool "Prompt for advanced kernel configuration options"
Michal Simeka116f6d2009-05-26 16:30:31 +0200137 help
138 This option will enable prompting for a variety of advanced kernel
139 configuration options. These options can cause the kernel to not
140 work if they are set incorrectly, but can be used to optimize certain
141 aspects of kernel memory management.
142
143 Unless you know what you are doing, say N here.
144
145comment "Default settings for advanced configuration options are used"
146 depends on !ADVANCED_OPTIONS
147
Michal Simek3a0d7a42010-02-22 12:16:08 +0100148config XILINX_UNCACHED_SHADOW
149 bool "Are you using uncached shadow for RAM ?"
150 depends on ADVANCED_OPTIONS && !MMU
151 default n
152 help
153 This is needed to be able to allocate uncachable memory regions.
154 The feature requires the design to define the RAM memory controller
155 window to be twice as large as the actual physical memory.
156
Michal Simek2f2f3712011-12-15 15:02:37 +0100157config HIGHMEM
158 bool "High memory support"
Michal Simeka116f6d2009-05-26 16:30:31 +0200159 depends on MMU
Michal Simek2f2f3712011-12-15 15:02:37 +0100160 help
161 The address space of Microblaze processors is only 4 Gigabytes large
162 and it has to accommodate user address space, kernel address
163 space as well as some memory mapped IO. That means that, if you
164 have a large amount of physical memory and/or IO, not all of the
165 memory can be "permanently mapped" by the kernel. The physical
166 memory that is not permanently mapped is called "high memory".
167
168 If unsure, say n.
Michal Simeka116f6d2009-05-26 16:30:31 +0200169
170config LOWMEM_SIZE_BOOL
171 bool "Set maximum low memory"
Michal Simekb8a84052010-02-22 11:33:07 +0100172 depends on ADVANCED_OPTIONS && MMU
Michal Simeka116f6d2009-05-26 16:30:31 +0200173 help
174 This option allows you to set the maximum amount of memory which
175 will be used as "low memory", that is, memory which the kernel can
176 access directly, without having to set up a kernel virtual mapping.
177 This can be useful in optimizing the layout of kernel virtual
178 memory.
179
180 Say N here unless you know what you are doing.
181
182config LOWMEM_SIZE
183 hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
Michal Simeka116f6d2009-05-26 16:30:31 +0200184 default "0x30000000"
185
Michal Simek0b9b0202010-11-08 12:37:40 +0100186config MANUAL_RESET_VECTOR
187 hex "Microblaze reset vector address setup"
188 default "0x0"
189 help
190 Set this option to have the kernel override the CPU Reset vector.
191 If zero, no change will be made to the MicroBlaze reset vector at
192 address 0x0.
193 If non-zero, a jump instruction to this address, will be written
194 to the reset vector at address 0x0.
195 If you are unsure, set it to default value 0x0.
196
Michal Simeka116f6d2009-05-26 16:30:31 +0200197config KERNEL_START_BOOL
198 bool "Set custom kernel base address"
199 depends on ADVANCED_OPTIONS
200 help
201 This option allows you to set the kernel virtual address at which
202 the kernel will map low memory (the kernel image will be linked at
203 this address). This can be useful in optimizing the virtual memory
204 layout of the system.
205
206 Say N here unless you know what you are doing.
207
208config KERNEL_START
209 hex "Virtual address of kernel base" if KERNEL_START_BOOL
210 default "0xc0000000" if MMU
211 default KERNEL_BASE_ADDR if !MMU
212
213config TASK_SIZE_BOOL
214 bool "Set custom user task size"
Michal Simekb8a84052010-02-22 11:33:07 +0100215 depends on ADVANCED_OPTIONS && MMU
Michal Simeka116f6d2009-05-26 16:30:31 +0200216 help
217 This option allows you to set the amount of virtual address space
218 allocated to user tasks. This can be useful in optimizing the
219 virtual memory layout of the system.
220
221 Say N here unless you know what you are doing.
222
223config TASK_SIZE
224 hex "Size of user task space" if TASK_SIZE_BOOL
Michal Simeka116f6d2009-05-26 16:30:31 +0200225 default "0x80000000"
226
Steven J. Magnaniba9c4f82010-05-13 10:48:27 -0500227choice
228 prompt "Page size"
229 default MICROBLAZE_4K_PAGES
230 depends on ADVANCED_OPTIONS && !MMU
231 help
232 Select the kernel logical page size. Increasing the page size
233 will reduce software overhead at each page boundary, allow
234 hardware prefetch mechanisms to be more effective, and allow
235 larger dma transfers increasing IO efficiency and reducing
236 overhead. However the utilization of memory will increase.
237 For example, each cached file will using a multiple of the
238 page size to hold its contents and the difference between the
239 end of file and the end of page is wasted.
240
241 If unsure, choose 4K_PAGES.
242
243config MICROBLAZE_4K_PAGES
244 bool "4k page size"
245
Steven J. Magnaniba9c4f82010-05-13 10:48:27 -0500246config MICROBLAZE_16K_PAGES
247 bool "16k page size"
248
Michal Simek6e80cff2012-08-01 10:29:28 +0200249config MICROBLAZE_64K_PAGES
250 bool "64k page size"
Steven J. Magnaniba9c4f82010-05-13 10:48:27 -0500251
252endchoice
253
Michal Simek95b0f9e2010-02-08 16:41:38 +0100254config KERNEL_PAD
255 hex "Kernel PAD for unpacking" if ADVANCED_OPTIONS
256 default "0x80000" if MMU
257
Michal Simeka116f6d2009-05-26 16:30:31 +0200258endmenu
259
Michal Simek575ca282009-03-27 14:25:50 +0100260source "mm/Kconfig"
261
Tobias Klauser910672d2011-03-02 18:38:35 +0100262menu "Executable file formats"
Michal Simek575ca282009-03-27 14:25:50 +0100263
264source "fs/Kconfig.binfmt"
265
266endmenu
267
Michal Simeka6475c12010-01-18 15:27:10 +0100268menu "Bus Options"
269
270config PCI
271 bool "PCI support"
272
273config PCI_DOMAINS
274 def_bool PCI
275
276config PCI_SYSCALL
277 def_bool PCI
278
Michal Simek733cc212010-01-18 15:27:11 +0100279config PCI_XILINX
280 bool "Xilinx PCI host bridge support"
281 depends on PCI
282
Michal Simeka6475c12010-01-18 15:27:10 +0100283source "drivers/pci/Kconfig"
284
285endmenu
286
Michal Simek575ca282009-03-27 14:25:50 +0100287source "net/Kconfig"
288
289source "drivers/Kconfig"
290
291source "fs/Kconfig"
292
293source "arch/microblaze/Kconfig.debug"
294
295source "security/Kconfig"
296
297source "crypto/Kconfig"
298
299source "lib/Kconfig"