1 # SPDX-License-Identifier: GPL-2.0
4 select ALTERNATE_USER_ADDRESS_SPACE
5 select ARCH_32BIT_OFF_T if !64BIT
6 select ARCH_MIGHT_HAVE_PC_PARPORT
7 select HAVE_FUNCTION_TRACER
8 select HAVE_FUNCTION_GRAPH_TRACER
9 select HAVE_SYSCALL_TRACEPOINTS
10 select ARCH_WANT_FRAME_POINTERS
11 select ARCH_HAS_DMA_ALLOC if PA11
12 select ARCH_HAS_ELF_RANDOMIZE
13 select ARCH_HAS_STRICT_KERNEL_RWX
14 select ARCH_HAS_STRICT_MODULE_RWX
15 select ARCH_HAS_UBSAN_SANITIZE_ALL
16 select ARCH_HAS_PTE_SPECIAL
17 select ARCH_NO_SG_CHAIN
18 select ARCH_SUPPORTS_HUGETLBFS if PA20
19 select ARCH_SUPPORTS_MEMORY_FAILURE
21 select ARCH_HAS_DEBUG_VM_PGTABLE
22 select HAVE_RELIABLE_STACKTRACE
25 select RTC_DRV_GENERIC
26 select INIT_ALL_POSSIBLE
28 select HAVE_KERNEL_UNCOMPRESSED
30 select HAVE_PERF_EVENTS
31 select HAVE_KERNEL_BZIP2
32 select HAVE_KERNEL_GZIP
33 select HAVE_KERNEL_LZ4
34 select HAVE_KERNEL_LZMA
35 select HAVE_KERNEL_LZO
37 select GENERIC_ATOMIC64 if !64BIT
38 select GENERIC_IRQ_PROBE
39 select GENERIC_PCI_IOMAP
40 select GENERIC_IOREMAP
41 select ARCH_HAVE_NMI_SAFE_CMPXCHG
42 select GENERIC_SMP_IDLE_THREAD
43 select GENERIC_ARCH_TOPOLOGY if SMP
44 select GENERIC_CPU_DEVICES if !SMP
45 select GENERIC_LIB_DEVMEM_IS_ALLOWED
46 select SYSCTL_ARCH_UNALIGN_ALLOW
47 select SYSCTL_EXCEPTION_TRACE
48 select HAVE_MOD_ARCH_SPECIFIC
49 select MODULES_USE_ELF_RELA
50 select CLONE_BACKWARDS
51 select TTY # Needed for pdc_cons.c
52 select HAS_IOPORT if PCI || EISA
53 select HAVE_DEBUG_STACKOVERFLOW
54 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT
55 select HAVE_ARCH_MMAP_RND_COMPAT_BITS if COMPAT
56 select HAVE_ARCH_MMAP_RND_BITS
57 select HAVE_ARCH_AUDITSYSCALL
59 select HAVE_ARCH_JUMP_LABEL
60 select HAVE_ARCH_JUMP_LABEL_RELATIVE
61 select HAVE_ARCH_KFENCE
62 select HAVE_ARCH_SECCOMP_FILTER
63 select HAVE_ARCH_TRACEHOOK
65 select ARCH_WANT_DEFAULT_BPF_JIT
66 select HAVE_REGS_AND_STACK_ACCESS_API
67 select HOTPLUG_CORE_SYNC_DEAD if HOTPLUG_CPU
68 select GENERIC_SCHED_CLOCK
69 select GENERIC_IRQ_MIGRATION if SMP
70 select HAVE_UNSTABLE_SCHED_CLOCK if SMP
71 select LEGACY_TIMER_TICK
72 select CPU_NO_EFFICIENT_FFS
73 select THREAD_INFO_IN_TASK
74 select NEED_DMA_MAP_STATE
75 select NEED_SG_DMA_LENGTH
78 select HAVE_KRETPROBES
79 select HAVE_DYNAMIC_FTRACE if $(cc-option,-fpatchable-function-entry=1,1)
80 select HAVE_FTRACE_MCOUNT_RECORD if HAVE_DYNAMIC_FTRACE
81 select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY if DYNAMIC_FTRACE
82 select HAVE_KPROBES_ON_FTRACE
83 select HAVE_DYNAMIC_FTRACE_WITH_REGS
84 select HAVE_SOFTIRQ_ON_OWN_STACK if IRQSTACKS
85 select TRACE_IRQFLAGS_SUPPORT
86 select HAVE_FUNCTION_DESCRIPTORS if 64BIT
89 The PA-RISC microprocessor is designed by Hewlett-Packard and used
90 in many of their workstations & servers (HP9000 700 and 800 series,
91 and later HP3000 series). The PA-RISC Linux project home page is
92 at <https://parisc.wiki.kernel.org>.
103 config GENERIC_LOCKBREAK
106 depends on SMP && PREEMPTION
108 config ARCH_HAS_ILOG2_U32
112 config ARCH_HAS_ILOG2_U64
119 select GENERIC_BUG_RELATIVE_POINTERS if 64BIT
121 config GENERIC_BUG_RELATIVE_POINTERS
124 config GENERIC_HWEIGHT
128 config GENERIC_CALIBRATE_DELAY
137 config ARCH_MMAP_RND_BITS_MIN
141 config ARCH_MMAP_RND_COMPAT_BITS_MIN
144 config ARCH_MMAP_RND_BITS_MAX
148 config ARCH_MMAP_RND_COMPAT_BITS_MAX
151 # unless you want to implement ACPI on PA-RISC ... ;-)
155 config STACKTRACE_SUPPORT
158 config LOCKDEP_SUPPORT
165 config ARCH_MAY_HAVE_PC_FDC
170 config PGTABLE_LEVELS
172 default 3 if 64BIT && PARISC_PAGE_SIZE_4KB
175 menu "Processor type and features"
178 prompt "Processor type"
179 default PA7000 if "$(ARCH)" = "parisc"
182 bool "PA7000/PA7100" if "$(ARCH)" = "parisc"
184 This is the processor type of your CPU. This information is
185 used for optimizing purposes. In order to compile a kernel
186 that can run on all 32-bit PA CPUs (albeit not optimally fast),
187 you can specify "PA7000" here.
189 Specifying "PA8000" here will allow you to select a 64-bit kernel
190 which is required on some machines.
193 bool "PA7100LC" if "$(ARCH)" = "parisc"
195 Select this option for the PCX-L processor, as used in the
196 712, 715/64, 715/80, 715/100, 715/100XC, 725/100, 743, 748,
197 D200, D210, D300, D310 and E-class
200 bool "PA7200" if "$(ARCH)" = "parisc"
202 Select this option for the PCX-T' processor, as used in the
203 C100, C110, J100, J110, J210XC, D250, D260, D350, D360,
204 K100, K200, K210, K220, K400, K410 and K420
207 bool "PA7300LC" if "$(ARCH)" = "parisc"
209 Select this option for the PCX-L2 processor, as used in the
210 744, A180, B132L, B160L, B180L, C132L, C160L, C180L,
211 D220, D230, D320 and D330.
216 Select this option for PCX-U to PCX-W2 processors.
220 # Define implied options from the CPU selection here
228 depends on PA7000 || PA7100LC || PA7200 || PA7300LC
229 select ARCH_HAS_SYNC_DMA_FOR_CPU
230 select ARCH_HAS_SYNC_DMA_FOR_DEVICE
234 depends on PA8X00 || PA7200
236 config PARISC_HUGE_KERNEL
237 def_bool y if !MODULES || UBSAN || FTRACE || COMPILE_TEST
240 def_bool y if PARISC_HUGE_KERNEL
241 bool "Enable the -mlong-calls compiler option for big kernels" if !PARISC_HUGE_KERNEL
244 If you configure the kernel to include many drivers built-in instead
245 as modules, the kernel executable may become too big, so that the
246 linker will not be able to resolve some long branches and fails to link
247 your vmlinux kernel. In that case enabling this option will help you
248 to overcome this limit by using the -mlong-calls compiler option.
250 Usually you want to say N here, unless you e.g. want to build
251 a kernel which includes all necessary drivers built-in and which can
252 be used for TFTP booting without the need to have an initrd ramdisk.
254 Enabling this option will probably slow down your kernel.
257 def_bool y if "$(ARCH)" = "parisc64"
258 bool "64-bit kernel" if "$(ARCH)" = "parisc"
261 Enable this if you want to support 64bit kernel on PA-RISC platform.
263 At the moment, only people willing to use more than 2GB of RAM,
264 or having a 64bit-only capable PA-RISC machine should say Y here.
266 Since there is no 64bit userland on PA-RISC, there is no point to
267 enable this option otherwise. The 64bit kernel is significantly bigger
268 and slower than the 32bit one.
271 prompt "Kernel page size"
272 default PARISC_PAGE_SIZE_4KB
274 config PARISC_PAGE_SIZE_4KB
277 This lets you select the page size of the kernel. For best
278 performance, a page size of 16KB is recommended. For best
279 compatibility with 32bit applications, a page size of 4KB should be
280 selected (the vast majority of 32bit binaries work perfectly fine
281 with a larger page size).
283 4KB For best 32bit compatibility
284 16KB For best performance
285 64KB For best performance, might give more overhead.
287 If you don't know what to do, choose 4KB.
289 config PARISC_PAGE_SIZE_16KB
291 depends on PA8X00 && BROKEN && !KFENCE
293 config PARISC_PAGE_SIZE_64KB
295 depends on PA8X00 && BROKEN && !KFENCE
300 bool "Symmetric multi-processing support"
302 This enables support for systems with more than one CPU. If you have
303 a system with only one CPU, say N. If you have a system with more
306 If you say N here, the kernel will run on uni- and multiprocessor
307 machines, but will use only one CPU of a multiprocessor machine.
308 On a uniprocessor machine, the kernel will run faster if you say N.
310 See also <file:Documentation/admin-guide/lockup-watchdogs.rst> and the SMP-HOWTO
311 available at <https://www.tldp.org/docs.html#howto>.
313 If you don't know what to do here, say N.
316 bool "Multi-core scheduler support"
317 depends on GENERIC_ARCH_TOPOLOGY && PA8X00
319 Multi-core scheduler support improves the CPU scheduler's decision
320 making when dealing with multi-core CPU chips at a cost of slightly
321 increased overhead in some places. If unsure say N here.
324 bool "Use separate kernel stacks when processing interrupts"
327 If you say Y here the kernel will use separate kernel stacks
328 for handling hard and soft interrupts. This can help avoid
329 overflowing the process kernel stacks.
335 config ARCH_SELECT_MEMORY_MODEL
339 config ARCH_SPARSEMEM_ENABLE
343 config ARCH_FLATMEM_ENABLE
346 config ARCH_SPARSEMEM_DEFAULT
348 depends on ARCH_SPARSEMEM_ENABLE
350 source "kernel/Kconfig.hz"
360 int "Maximum number of CPUs (2-32)"
368 config ARCH_SUPPORTS_KEXEC
371 config ARCH_SUPPORTS_KEXEC_FILE
374 config ARCH_SELECTS_KEXEC_FILE
376 depends on KEXEC_FILE
379 source "drivers/parisc/Kconfig"