xref: /linux/arch/mips/Kconfig (revision a578dd095dfe8b56c167201d9aea43e47d27f807)
1# SPDX-License-Identifier: GPL-2.0
2config MIPS
3	bool
4	default y
5	select ARCH_32BIT_OFF_T if !64BIT
6	select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT
7	select ARCH_HAS_CPU_CACHE_ALIASING
8	select ARCH_HAS_CPU_FINALIZE_INIT
9	select ARCH_HAS_CURRENT_STACK_POINTER if !CC_IS_CLANG || CLANG_VERSION >= 140000
10	select ARCH_HAS_DEBUG_VIRTUAL if !64BIT
11	select ARCH_HAS_DMA_OPS if MACH_JAZZ
12	select ARCH_HAS_FORTIFY_SOURCE
13	select ARCH_HAS_KCOV
14	select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE if !EVA
15	select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
16	select ARCH_HAS_STRNCPY_FROM_USER
17	select ARCH_HAS_STRNLEN_USER
18	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
19	select ARCH_HAS_UBSAN
20	select ARCH_HAS_GCOV_PROFILE_ALL
21	select ARCH_KEEP_MEMBLOCK
22	select ARCH_USE_BUILTIN_BSWAP
23	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
24	select ARCH_USE_MEMTEST
25	select ARCH_USE_QUEUED_RWLOCKS
26	select ARCH_USE_QUEUED_SPINLOCKS
27	select ARCH_SUPPORTS_HUGETLBFS if CPU_SUPPORTS_HUGEPAGES
28	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
29	select ARCH_WANT_IPC_PARSE_VERSION
30	select ARCH_WANT_LD_ORPHAN_WARN
31	select BUILDTIME_TABLE_SORT
32	select BUILTIN_DTB_ALL if BUILTIN_DTB
33	select CLONE_BACKWARDS
34	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
35	select CPU_PM if CPU_IDLE || SUSPEND
36	select GENERIC_ATOMIC64 if !64BIT
37	select GENERIC_BUILTIN_DTB if BUILTIN_DTB
38	select GENERIC_CMOS_UPDATE
39	select GENERIC_CPU_AUTOPROBE
40	select GENERIC_GETTIMEOFDAY
41	select GENERIC_IRQ_PROBE
42	select GENERIC_IRQ_SHOW
43	select GENERIC_ISA_DMA if EISA
44	select GENERIC_LIB_ASHLDI3
45	select GENERIC_LIB_ASHRDI3
46	select GENERIC_LIB_CMPDI2
47	select GENERIC_LIB_LSHRDI3
48	select GENERIC_LIB_UCMPDI2
49	select GENERIC_PCI_IOMAP
50	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
51	select GENERIC_SMP_IDLE_THREAD
52	select GENERIC_IDLE_POLL_SETUP
53	select GENERIC_TIME_VSYSCALL
54	select GENERIC_VDSO_DATA_STORE
55	select GUP_GET_PXX_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
56	select HAS_IOPORT if !NO_IOPORT_MAP || ISA
57	select HAVE_ARCH_COMPILER_H
58	select HAVE_ARCH_JUMP_LABEL
59	select HAVE_ARCH_KGDB if MIPS_FP_SUPPORT
60	select HAVE_ARCH_MMAP_RND_BITS if MMU
61	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
62	select HAVE_ARCH_SECCOMP_FILTER
63	select HAVE_ARCH_TRACEHOOK
64	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
65	select HAVE_ASM_MODVERSIONS
66	select HAVE_CONTEXT_TRACKING_USER
67	select HAVE_TIF_NOHZ
68	select HAVE_C_RECORDMCOUNT
69	select HAVE_DEBUG_KMEMLEAK
70	select HAVE_DEBUG_STACKOVERFLOW
71	select HAVE_DMA_CONTIGUOUS
72	select HAVE_DYNAMIC_FTRACE
73	select HAVE_EBPF_JIT if !CPU_MICROMIPS
74	select HAVE_EXIT_THREAD
75	select HAVE_GUP_FAST
76	select HAVE_FTRACE_MCOUNT_RECORD
77	select HAVE_FUNCTION_GRAPH_TRACER
78	select HAVE_FUNCTION_TRACER
79	select HAVE_GCC_PLUGINS
80	select HAVE_GENERIC_VDSO
81	select HAVE_IOREMAP_PROT
82	select HAVE_IRQ_EXIT_ON_IRQ_STACK
83	select HAVE_IRQ_TIME_ACCOUNTING
84	select HAVE_KPROBES
85	select HAVE_KRETPROBES
86	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
87	select HAVE_MOD_ARCH_SPECIFIC
88	select HAVE_NMI
89	select HAVE_PAGE_SIZE_4KB if !CPU_LOONGSON2EF && !CPU_LOONGSON64
90	select HAVE_PAGE_SIZE_16KB if !CPU_R3000
91	select HAVE_PAGE_SIZE_64KB if !CPU_R3000
92	select HAVE_PERF_EVENTS
93	select HAVE_PERF_REGS
94	select HAVE_PERF_USER_STACK_DUMP
95	select HAVE_REGS_AND_STACK_ACCESS_API
96	select HAVE_RSEQ
97	select HAVE_SPARSE_SYSCALL_NR
98	select HAVE_STACKPROTECTOR
99	select HAVE_SYSCALL_TRACEPOINTS
100	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
101	select IRQ_FORCED_THREADING
102	select ISA if EISA
103	select LOCK_MM_AND_FIND_VMA
104	select MODULES_USE_ELF_REL if MODULES
105	select MODULES_USE_ELF_RELA if MODULES && 64BIT
106	select PERF_USE_VMALLOC
107	select PCI_MSI_ARCH_FALLBACKS if PCI_MSI
108	select RTC_LIB
109	select SYSCTL_EXCEPTION_TRACE
110	select TRACE_IRQFLAGS_SUPPORT
111	select ARCH_HAS_ELFCORE_COMPAT
112	select HAVE_ARCH_KCSAN if 64BIT
113
114config MIPS_FIXUP_BIGPHYS_ADDR
115	bool
116
117config MIPS_GENERIC
118	bool
119
120config MACH_GENERIC_CORE
121	bool
122
123config MACH_INGENIC
124	bool
125	select SYS_SUPPORTS_32BIT_KERNEL
126	select SYS_SUPPORTS_LITTLE_ENDIAN
127	select SYS_SUPPORTS_ZBOOT
128	select DMA_NONCOHERENT
129	select IRQ_MIPS_CPU
130	select PINCTRL
131	select GPIOLIB
132	select COMMON_CLK
133	select GENERIC_IRQ_CHIP
134	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
135	select USE_OF
136	select CPU_SUPPORTS_CPUFREQ
137	select MIPS_EXTERNAL_TIMER
138
139menu "Machine selection"
140
141choice
142	prompt "System type"
143	default MIPS_GENERIC_KERNEL
144
145config MIPS_GENERIC_KERNEL
146	bool "Generic board-agnostic MIPS kernel"
147	select MIPS_GENERIC
148	select BOOT_RAW
149	select BUILTIN_DTB
150	select CEVT_R4K
151	select CLKSRC_MIPS_GIC
152	select COMMON_CLK
153	select CPU_MIPSR2_IRQ_EI
154	select CPU_MIPSR2_IRQ_VI
155	select CSRC_R4K
156	select DMA_NONCOHERENT
157	select HAVE_PCI
158	select IRQ_MIPS_CPU
159	select MACH_GENERIC_CORE
160	select MIPS_AUTO_PFN_OFFSET
161	select MIPS_CPU_SCACHE
162	select MIPS_GIC
163	select MIPS_L1_CACHE_SHIFT_7
164	select NO_EXCEPT_FILL
165	select PCI_DRIVERS_GENERIC
166	select SMP_UP if SMP
167	select SWAP_IO_SPACE
168	select SYS_HAS_CPU_MIPS32_R1
169	select SYS_HAS_CPU_MIPS32_R2
170	select SYS_HAS_CPU_MIPS32_R5
171	select SYS_HAS_CPU_MIPS32_R6
172	select SYS_HAS_CPU_MIPS64_R1
173	select SYS_HAS_CPU_MIPS64_R2
174	select SYS_HAS_CPU_MIPS64_R5
175	select SYS_HAS_CPU_MIPS64_R6
176	select SYS_SUPPORTS_32BIT_KERNEL
177	select SYS_SUPPORTS_64BIT_KERNEL
178	select SYS_SUPPORTS_BIG_ENDIAN
179	select SYS_SUPPORTS_HIGHMEM
180	select SYS_SUPPORTS_LITTLE_ENDIAN
181	select SYS_SUPPORTS_MICROMIPS
182	select SYS_SUPPORTS_MIPS16
183	select SYS_SUPPORTS_MIPS_CPS
184	select SYS_SUPPORTS_MULTITHREADING
185	select SYS_SUPPORTS_RELOCATABLE
186	select SYS_SUPPORTS_SMARTMIPS
187	select SYS_SUPPORTS_ZBOOT
188	select UHI_BOOT
189	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
190	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
191	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
192	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
193	select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
194	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
195	select USE_OF
196	help
197	  Select this to build a kernel which aims to support multiple boards,
198	  generally using a flattened device tree passed from the bootloader
199	  using the boot protocol defined in the UHI (Unified Hosting
200	  Interface) specification.
201
202config MIPS_ALCHEMY
203	bool "Alchemy processor based machines"
204	select PHYS_ADDR_T_64BIT
205	select CEVT_R4K
206	select CSRC_R4K
207	select IRQ_MIPS_CPU
208	select DMA_NONCOHERENT		# Au1000,1500,1100 aren't, rest is
209	select MIPS_FIXUP_BIGPHYS_ADDR if PCI
210	select SYS_HAS_CPU_MIPS32_R1
211	select SYS_SUPPORTS_32BIT_KERNEL
212	select SYS_SUPPORTS_APM_EMULATION
213	select GPIOLIB
214	select SYS_SUPPORTS_ZBOOT
215	select COMMON_CLK
216
217config ATH25
218	bool "Atheros AR231x/AR531x SoC support"
219	select CEVT_R4K
220	select CSRC_R4K
221	select DMA_NONCOHERENT
222	select IRQ_MIPS_CPU
223	select IRQ_DOMAIN
224	select SYS_HAS_CPU_MIPS32_R1
225	select SYS_SUPPORTS_BIG_ENDIAN
226	select SYS_SUPPORTS_32BIT_KERNEL
227	select SYS_HAS_EARLY_PRINTK
228	help
229	  Support for Atheros AR231x and Atheros AR531x based boards
230
231config ATH79
232	bool "Atheros AR71XX/AR724X/AR913X based boards"
233	select ARCH_HAS_RESET_CONTROLLER
234	select BOOT_RAW
235	select CEVT_R4K
236	select CSRC_R4K
237	select DMA_NONCOHERENT
238	select GPIOLIB
239	select PINCTRL
240	select COMMON_CLK
241	select IRQ_MIPS_CPU
242	select SYS_HAS_CPU_MIPS32_R2
243	select SYS_HAS_EARLY_PRINTK
244	select SYS_SUPPORTS_32BIT_KERNEL
245	select SYS_SUPPORTS_BIG_ENDIAN
246	select SYS_SUPPORTS_MIPS16
247	select SYS_SUPPORTS_ZBOOT_UART_PROM
248	select USE_OF
249	select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
250	help
251	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
252
253config BMIPS_GENERIC
254	bool "Broadcom Generic BMIPS kernel"
255	select ARCH_HAS_RESET_CONTROLLER
256	select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
257	select BOOT_RAW
258	select NO_EXCEPT_FILL
259	select USE_OF
260	select CEVT_R4K
261	select CSRC_R4K
262	select SYNC_R4K
263	select COMMON_CLK
264	select BCM6345_L1_IRQ
265	select BCM7038_L1_IRQ
266	select BCM7120_L2_IRQ
267	select BRCMSTB_L2_IRQ
268	select IRQ_MIPS_CPU
269	select DMA_NONCOHERENT
270	select SYS_SUPPORTS_32BIT_KERNEL
271	select SYS_SUPPORTS_LITTLE_ENDIAN
272	select SYS_SUPPORTS_BIG_ENDIAN
273	select SYS_SUPPORTS_HIGHMEM
274	select SYS_HAS_CPU_BMIPS32_3300
275	select SYS_HAS_CPU_BMIPS4350
276	select SYS_HAS_CPU_BMIPS4380
277	select SYS_HAS_CPU_BMIPS5000
278	select SWAP_IO_SPACE
279	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
280	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
281	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
282	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
283	select HARDIRQS_SW_RESEND
284	select HAVE_PCI
285	select PCI_DRIVERS_GENERIC
286	select FW_CFE
287	help
288	  Build a generic DT-based kernel image that boots on select
289	  BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
290	  box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
291	  must be set appropriately for your board.
292
293config BCM47XX
294	bool "Broadcom BCM47XX based boards"
295	select BOOT_RAW
296	select CEVT_R4K
297	select CSRC_R4K
298	select DMA_NONCOHERENT
299	select HAVE_PCI
300	select IRQ_MIPS_CPU
301	select SYS_HAS_CPU_MIPS32_R1
302	select NO_EXCEPT_FILL
303	select SYS_SUPPORTS_32BIT_KERNEL
304	select SYS_SUPPORTS_LITTLE_ENDIAN
305	select SYS_SUPPORTS_MIPS16
306	select SYS_SUPPORTS_ZBOOT
307	select SYS_HAS_EARLY_PRINTK
308	select USE_GENERIC_EARLY_PRINTK_8250
309	select GPIOLIB
310	select LEDS_GPIO_REGISTER
311	select BCM47XX_NVRAM
312	select BCM47XX_SPROM
313	select BCM47XX_SSB if !BCM47XX_BCMA
314	help
315	  Support for BCM47XX based boards
316
317config BCM63XX
318	bool "Broadcom BCM63XX based boards"
319	select BOOT_RAW
320	select CEVT_R4K
321	select CSRC_R4K
322	select SYNC_R4K
323	select DMA_NONCOHERENT
324	select IRQ_MIPS_CPU
325	select SYS_SUPPORTS_32BIT_KERNEL
326	select SYS_SUPPORTS_BIG_ENDIAN
327	select SYS_HAS_EARLY_PRINTK
328	select SYS_HAS_CPU_BMIPS32_3300
329	select SYS_HAS_CPU_BMIPS4350
330	select SYS_HAS_CPU_BMIPS4380
331	select SWAP_IO_SPACE
332	select GPIOLIB
333	select MIPS_L1_CACHE_SHIFT_4
334	select HAVE_LEGACY_CLK
335	help
336	  Support for BCM63XX based boards
337
338config MIPS_COBALT
339	bool "Cobalt Server"
340	select CEVT_R4K
341	select CSRC_R4K
342	select CEVT_GT641XX
343	select DMA_NONCOHERENT
344	select FORCE_PCI
345	select I8253
346	select I8259
347	select IRQ_MIPS_CPU
348	select IRQ_GT641XX
349	select PCI_GT64XXX_PCI0
350	select SYS_HAS_CPU_NEVADA
351	select SYS_HAS_EARLY_PRINTK
352	select SYS_SUPPORTS_32BIT_KERNEL
353	select SYS_SUPPORTS_64BIT_KERNEL
354	select SYS_SUPPORTS_LITTLE_ENDIAN
355	select USE_GENERIC_EARLY_PRINTK_8250
356
357config MACH_DECSTATION
358	bool "DECstations"
359	select BOOT_ELF32
360	select CEVT_DS1287
361	select CEVT_R4K if CPU_R4X00
362	select CSRC_IOASIC
363	select CSRC_R4K if CPU_R4X00
364	select CPU_DADDI_WORKAROUNDS if 64BIT
365	select CPU_R4000_WORKAROUNDS if 64BIT
366	select CPU_R4400_WORKAROUNDS if 64BIT
367	select DMA_NONCOHERENT
368	select NO_IOPORT_MAP
369	select IRQ_MIPS_CPU
370	select SYS_HAS_CPU_R3000
371	select SYS_HAS_CPU_R4X00
372	select SYS_SUPPORTS_32BIT_KERNEL
373	select SYS_SUPPORTS_64BIT_KERNEL
374	select SYS_SUPPORTS_LITTLE_ENDIAN
375	select SYS_SUPPORTS_128HZ
376	select SYS_SUPPORTS_256HZ
377	select SYS_SUPPORTS_1024HZ
378	select MIPS_L1_CACHE_SHIFT_4
379	help
380	  This enables support for DEC's MIPS based workstations.  For details
381	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
382	  DECstation porting pages on <http://decstation.unix-ag.org/>.
383
384	  If you have one of the following DECstation Models you definitely
385	  want to choose R4xx0 for the CPU Type:
386
387		DECstation 5000/50
388		DECstation 5000/150
389		DECstation 5000/260
390		DECsystem 5900/260
391
392	  otherwise choose R3000.
393
394config ECONET
395	bool "EcoNet MIPS family"
396	select BOOT_RAW
397	select CPU_BIG_ENDIAN
398	select DEBUG_ZBOOT if DEBUG_KERNEL
399	select EARLY_PRINTK_8250
400	select ECONET_EN751221_TIMER
401	select SERIAL_8250
402	select SERIAL_OF_PLATFORM
403	select SYS_SUPPORTS_BIG_ENDIAN
404	select SYS_HAS_CPU_MIPS32_R1
405	select SYS_HAS_CPU_MIPS32_R2
406	select SYS_HAS_EARLY_PRINTK
407	select SYS_SUPPORTS_32BIT_KERNEL
408	select SYS_SUPPORTS_MIPS16
409	select SYS_SUPPORTS_ZBOOT_UART16550
410	select USE_GENERIC_EARLY_PRINTK_8250
411	select USE_OF
412	help
413	  EcoNet EN75xx MIPS devices are big endian MIPS machines used
414	  in XPON (fiber) and DSL applications. They have SPI, PCI, USB,
415	  GPIO, and Ethernet, with optional XPON, DSL, and VoIP DSP cores.
416	  Don't confuse these with the Airoha ARM devices sometimes referred
417	  to as "EcoNet", this family is for MIPS based devices only.
418
419config MACH_JAZZ
420	bool "Jazz family of machines"
421	select ARC_MEMORY
422	select ARC_PROMLIB
423	select ARCH_MIGHT_HAVE_PC_PARPORT
424	select ARCH_MIGHT_HAVE_PC_SERIO
425	select FW_ARC
426	select FW_ARC32
427	select ARCH_MAY_HAVE_PC_FDC
428	select CEVT_R4K
429	select CSRC_R4K
430	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
431	select GENERIC_ISA_DMA
432	select HAVE_PCSPKR_PLATFORM
433	select IRQ_MIPS_CPU
434	select I8253
435	select I8259
436	select ISA
437	select SYS_HAS_CPU_R4X00
438	select SYS_SUPPORTS_32BIT_KERNEL
439	select SYS_SUPPORTS_64BIT_KERNEL
440	select SYS_SUPPORTS_100HZ
441	select SYS_SUPPORTS_LITTLE_ENDIAN
442	help
443	  This a family of machines based on the MIPS R4030 chipset which was
444	  used by several vendors to build RISC/os and Windows NT workstations.
445	  Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
446	  Olivetti M700-10 workstations.
447
448config MACH_INGENIC_SOC
449	bool "Ingenic SoC based machines"
450	select MIPS_GENERIC
451	select MACH_INGENIC
452	select MACH_GENERIC_CORE
453	select SYS_SUPPORTS_ZBOOT_UART16550
454	select CPU_SUPPORTS_CPUFREQ
455	select MIPS_EXTERNAL_TIMER
456
457config LANTIQ
458	bool "Lantiq based platforms"
459	select DMA_NONCOHERENT
460	select IRQ_MIPS_CPU
461	select CEVT_R4K
462	select CSRC_R4K
463	select NO_EXCEPT_FILL
464	select SYS_HAS_CPU_MIPS32_R1
465	select SYS_HAS_CPU_MIPS32_R2
466	select SYS_SUPPORTS_BIG_ENDIAN
467	select SYS_SUPPORTS_32BIT_KERNEL
468	select SYS_SUPPORTS_MIPS16
469	select SYS_SUPPORTS_MULTITHREADING
470	select SYS_SUPPORTS_VPE_LOADER
471	select SYS_HAS_EARLY_PRINTK
472	select GPIOLIB
473	select SWAP_IO_SPACE
474	select BOOT_RAW
475	select HAVE_LEGACY_CLK
476	select USE_OF
477	select PINCTRL
478	select PINCTRL_LANTIQ
479	select ARCH_HAS_RESET_CONTROLLER
480	select RESET_CONTROLLER
481
482config MACH_LOONGSON32
483	bool "Loongson 32-bit family of machines"
484	select SYS_SUPPORTS_ZBOOT
485	help
486	  This enables support for the Loongson-1 family of machines.
487
488	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
489	  the Institute of Computing Technology (ICT), Chinese Academy of
490	  Sciences (CAS).
491
492config MACH_LOONGSON2EF
493	bool "Loongson-2E/F family of machines"
494	select SYS_SUPPORTS_ZBOOT
495	help
496	  This enables the support of early Loongson-2E/F family of machines.
497
498config MACH_LOONGSON64
499	bool "Loongson 64-bit family of machines"
500	select ARCH_DMA_DEFAULT_COHERENT
501	select ARCH_SPARSEMEM_ENABLE
502	select ARCH_MIGHT_HAVE_PC_PARPORT
503	select ARCH_MIGHT_HAVE_PC_SERIO
504	select GENERIC_ISA_DMA_SUPPORT_BROKEN
505	select BOOT_ELF32
506	select BOARD_SCACHE
507	select CSRC_R4K
508	select CEVT_R4K
509	select SYNC_R4K
510	select FORCE_PCI
511	select ISA
512	select I8259
513	select IRQ_MIPS_CPU
514	select NO_EXCEPT_FILL
515	select NR_CPUS_DEFAULT_64
516	select USE_GENERIC_EARLY_PRINTK_8250
517	select PCI_DRIVERS_GENERIC
518	select SYS_HAS_CPU_LOONGSON64
519	select SYS_HAS_EARLY_PRINTK
520	select SYS_SUPPORTS_SMP
521	select SYS_SUPPORTS_HOTPLUG_CPU
522	select SYS_SUPPORTS_NUMA
523	select SYS_SUPPORTS_64BIT_KERNEL
524	select SYS_SUPPORTS_HIGHMEM
525	select SYS_SUPPORTS_LITTLE_ENDIAN
526	select SYS_SUPPORTS_ZBOOT
527	select SYS_SUPPORTS_RELOCATABLE
528	select ZONE_DMA32
529	select COMMON_CLK
530	select USE_OF
531	select BUILTIN_DTB
532	select PCI_HOST_GENERIC
533	help
534	  This enables the support of Loongson-2/3 family of machines.
535
536	  Loongson-2 and Loongson-3 are 64-bit general-purpose processors with
537	  GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E
538	  and Loongson-2F which will be removed), developed by the Institute
539	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS).
540
541config MIPS_MALTA
542	bool "MIPS Malta board"
543	select ARCH_MAY_HAVE_PC_FDC
544	select ARCH_MIGHT_HAVE_PC_PARPORT
545	select ARCH_MIGHT_HAVE_PC_SERIO
546	select BOOT_ELF32
547	select BOOT_RAW
548	select BUILTIN_DTB
549	select CEVT_R4K
550	select CLKSRC_MIPS_GIC
551	select COMMON_CLK
552	select CSRC_R4K
553	select DMA_NONCOHERENT
554	select GENERIC_ISA_DMA
555	select HAVE_PCSPKR_PLATFORM
556	select HAVE_PCI
557	select I8253
558	select I8259
559	select IRQ_MIPS_CPU
560	select MIPS_BONITO64
561	select MIPS_CPU_SCACHE
562	select MIPS_GIC
563	select MIPS_L1_CACHE_SHIFT_6
564	select MIPS_MSC
565	select PCI_GT64XXX_PCI0
566	select SMP_UP if SMP
567	select SWAP_IO_SPACE
568	select SYS_HAS_CPU_MIPS32_R1
569	select SYS_HAS_CPU_MIPS32_R2
570	select SYS_HAS_CPU_MIPS32_R3_5
571	select SYS_HAS_CPU_MIPS32_R5
572	select SYS_HAS_CPU_MIPS32_R6
573	select SYS_HAS_CPU_MIPS64_R1
574	select SYS_HAS_CPU_MIPS64_R2
575	select SYS_HAS_CPU_MIPS64_R6
576	select SYS_HAS_CPU_NEVADA
577	select SYS_HAS_CPU_RM7000
578	select SYS_SUPPORTS_32BIT_KERNEL
579	select SYS_SUPPORTS_64BIT_KERNEL
580	select SYS_SUPPORTS_BIG_ENDIAN
581	select SYS_SUPPORTS_HIGHMEM
582	select SYS_SUPPORTS_LITTLE_ENDIAN
583	select SYS_SUPPORTS_MICROMIPS
584	select SYS_SUPPORTS_MIPS16
585	select SYS_SUPPORTS_MIPS_CPS
586	select SYS_SUPPORTS_MULTITHREADING
587	select SYS_SUPPORTS_RELOCATABLE
588	select SYS_SUPPORTS_SMARTMIPS
589	select SYS_SUPPORTS_VPE_LOADER
590	select SYS_SUPPORTS_ZBOOT
591	select USE_OF
592	select WAR_ICACHE_REFILLS
593	select ZONE_DMA32 if 64BIT
594	help
595	  This enables support for the MIPS Technologies Malta evaluation
596	  board.
597
598config MACH_PIC32
599	bool "Microchip PIC32 Family"
600	help
601	  This enables support for the Microchip PIC32 family of platforms.
602
603	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
604	  microcontrollers.
605
606config EYEQ
607	bool "Mobileye EyeQ SoC"
608	select MACH_GENERIC_CORE
609	select ARM_AMBA
610	select PHYSICAL_START_BOOL
611	select ARCH_SPARSEMEM_DEFAULT if 64BIT
612	select BOOT_RAW
613	select BUILTIN_DTB
614	select CEVT_R4K
615	select CLKSRC_MIPS_GIC
616	select COMMON_CLK
617	select CPU_MIPSR2_IRQ_EI
618	select CPU_MIPSR2_IRQ_VI
619	select CSRC_R4K
620	select DMA_NONCOHERENT
621	select HAVE_PCI
622	select IRQ_MIPS_CPU
623	select MIPS_AUTO_PFN_OFFSET
624	select MIPS_CPU_SCACHE
625	select MIPS_GIC
626	select MIPS_L1_CACHE_SHIFT_7
627	select PCI_DRIVERS_GENERIC
628	select SMP_UP if SMP
629	select SWAP_IO_SPACE
630	select SYS_HAS_CPU_MIPS64_R6
631	select SYS_SUPPORTS_64BIT_KERNEL
632	select SYS_SUPPORTS_HIGHMEM
633	select SYS_SUPPORTS_LITTLE_ENDIAN
634	select SYS_SUPPORTS_MIPS_CPS
635	select SYS_SUPPORTS_RELOCATABLE
636	select SYS_SUPPORTS_ZBOOT
637	select UHI_BOOT
638	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
639	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
640	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
641	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
642	select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
643	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
644	select USE_OF
645	select HOTPLUG_PARALLEL if SMP
646	help
647	  Select this to build a kernel supporting EyeQ SoC from Mobileye.
648
649	bool
650
651config MACH_NINTENDO64
652	bool "Nintendo 64 console"
653	select CEVT_R4K
654	select CSRC_R4K
655	select SYS_HAS_CPU_R4300
656	select SYS_SUPPORTS_BIG_ENDIAN
657	select SYS_SUPPORTS_ZBOOT
658	select SYS_SUPPORTS_32BIT_KERNEL
659	select SYS_SUPPORTS_64BIT_KERNEL
660	select DMA_NONCOHERENT
661	select IRQ_MIPS_CPU
662
663config RALINK
664	bool "Ralink based machines"
665	select CEVT_R4K
666	select COMMON_CLK
667	select CSRC_R4K
668	select BOOT_RAW
669	select DMA_NONCOHERENT
670	select IRQ_MIPS_CPU
671	select USE_OF
672	select SYS_HAS_CPU_MIPS32_R2
673	select SYS_SUPPORTS_32BIT_KERNEL
674	select SYS_SUPPORTS_LITTLE_ENDIAN
675	select SYS_SUPPORTS_MIPS16
676	select SYS_SUPPORTS_ZBOOT
677	select SYS_HAS_EARLY_PRINTK
678	select ARCH_HAS_RESET_CONTROLLER
679	select RESET_CONTROLLER
680
681config MACH_REALTEK_RTL
682	bool "Realtek RTL838x/RTL839x based machines"
683	select MIPS_GENERIC
684	select MACH_GENERIC_CORE
685	select DMA_NONCOHERENT
686	select IRQ_MIPS_CPU
687	select CSRC_R4K
688	select CEVT_R4K
689	select SYS_HAS_CPU_MIPS32_R1
690	select SYS_HAS_CPU_MIPS32_R2
691	select SYS_SUPPORTS_BIG_ENDIAN
692	select SYS_SUPPORTS_32BIT_KERNEL
693	select SYS_SUPPORTS_MIPS16
694	select SYS_SUPPORTS_MULTITHREADING
695	select SYS_SUPPORTS_VPE_LOADER
696	select BOOT_RAW
697	select PINCTRL
698	select USE_OF
699	select REALTEK_OTTO_TIMER
700
701config SGI_IP22
702	bool "SGI IP22 (Indy/Indigo2)"
703	select ARC_MEMORY
704	select ARC_PROMLIB
705	select FW_ARC
706	select FW_ARC32
707	select ARCH_MIGHT_HAVE_PC_SERIO
708	select BOOT_ELF32
709	select CEVT_R4K
710	select CSRC_R4K
711	select DEFAULT_SGI_PARTITION
712	select DMA_NONCOHERENT
713	select HAVE_EISA
714	select I8253
715	select I8259
716	select IP22_CPU_SCACHE
717	select IRQ_MIPS_CPU
718	select GENERIC_ISA_DMA_SUPPORT_BROKEN
719	select SGI_HAS_I8042
720	select SGI_HAS_INDYDOG
721	select SGI_HAS_HAL2
722	select SGI_HAS_SEEQ
723	select SGI_HAS_WD93
724	select SGI_HAS_ZILOG
725	select SWAP_IO_SPACE
726	select SYS_HAS_CPU_R4X00
727	select SYS_HAS_CPU_R5000
728	select SYS_HAS_EARLY_PRINTK
729	select SYS_SUPPORTS_32BIT_KERNEL
730	select SYS_SUPPORTS_64BIT_KERNEL
731	select SYS_SUPPORTS_BIG_ENDIAN
732	select WAR_R4600_V1_INDEX_ICACHEOP
733	select WAR_R4600_V1_HIT_CACHEOP
734	select WAR_R4600_V2_HIT_CACHEOP
735	select MIPS_L1_CACHE_SHIFT_7
736	help
737	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
738	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
739	  that runs on these, say Y here.
740
741config SGI_IP27
742	bool "SGI IP27 (Origin200/2000)"
743	select ARCH_HAS_PHYS_TO_DMA
744	select ARCH_SPARSEMEM_ENABLE
745	select FW_ARC
746	select FW_ARC64
747	select ARC_CMDLINE_ONLY
748	select BOOT_ELF64
749	select DEFAULT_SGI_PARTITION
750	select FORCE_PCI
751	select SYS_HAS_EARLY_PRINTK
752	select HAVE_PCI
753	select IRQ_MIPS_CPU
754	select IRQ_DOMAIN_HIERARCHY
755	select NR_CPUS_DEFAULT_64
756	select PCI_DRIVERS_GENERIC
757	select PCI_XTALK_BRIDGE
758	select SYS_HAS_CPU_R10000
759	select SYS_SUPPORTS_64BIT_KERNEL
760	select SYS_SUPPORTS_BIG_ENDIAN
761	select SYS_SUPPORTS_NUMA
762	select SYS_SUPPORTS_SMP
763	select WAR_R10000_LLSC
764	select MIPS_L1_CACHE_SHIFT_7
765	select NUMA
766	help
767	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
768	  workstations.  To compile a Linux kernel that runs on these, say Y
769	  here.
770
771config SGI_IP28
772	bool "SGI IP28 (Indigo2 R10k)"
773	select ARC_MEMORY
774	select ARC_PROMLIB
775	select FW_ARC
776	select FW_ARC64
777	select ARCH_MIGHT_HAVE_PC_SERIO
778	select BOOT_ELF64
779	select CEVT_R4K
780	select CSRC_R4K
781	select DEFAULT_SGI_PARTITION
782	select DMA_NONCOHERENT
783	select GENERIC_ISA_DMA_SUPPORT_BROKEN
784	select IRQ_MIPS_CPU
785	select HAVE_EISA
786	select I8253
787	select I8259
788	select SGI_HAS_I8042
789	select SGI_HAS_INDYDOG
790	select SGI_HAS_HAL2
791	select SGI_HAS_SEEQ
792	select SGI_HAS_WD93
793	select SGI_HAS_ZILOG
794	select SWAP_IO_SPACE
795	select SYS_HAS_CPU_R10000
796	select SYS_HAS_EARLY_PRINTK
797	select SYS_SUPPORTS_64BIT_KERNEL
798	select SYS_SUPPORTS_BIG_ENDIAN
799	select WAR_R10000_LLSC
800	select MIPS_L1_CACHE_SHIFT_7
801	help
802	  This is the SGI Indigo2 with R10000 processor.  To compile a Linux
803	  kernel that runs on these, say Y here.
804
805config SGI_IP30
806	bool "SGI IP30 (Octane/Octane2)"
807	select ARCH_HAS_PHYS_TO_DMA
808	select FW_ARC
809	select FW_ARC64
810	select BOOT_ELF64
811	select CEVT_R4K
812	select CSRC_R4K
813	select FORCE_PCI
814	select SYNC_R4K if SMP
815	select ZONE_DMA32
816	select HAVE_PCI
817	select IRQ_MIPS_CPU
818	select IRQ_DOMAIN_HIERARCHY
819	select PCI_DRIVERS_GENERIC
820	select PCI_XTALK_BRIDGE
821	select SYS_HAS_EARLY_PRINTK
822	select SYS_HAS_CPU_R10000
823	select SYS_SUPPORTS_64BIT_KERNEL
824	select SYS_SUPPORTS_BIG_ENDIAN
825	select SYS_SUPPORTS_SMP
826	select WAR_R10000_LLSC
827	select MIPS_L1_CACHE_SHIFT_7
828	select ARC_MEMORY
829	help
830	  These are the SGI Octane and Octane2 graphics workstations.  To
831	  compile a Linux kernel that runs on these, say Y here.
832
833config SGI_IP32
834	bool "SGI IP32 (O2)"
835	select ARC_MEMORY
836	select ARC_PROMLIB
837	select ARCH_HAS_PHYS_TO_DMA
838	select FW_ARC
839	select FW_ARC32
840	select BOOT_ELF32
841	select CEVT_R4K
842	select CSRC_R4K
843	select DMA_NONCOHERENT
844	select HAVE_PCI
845	select IRQ_MIPS_CPU
846	select R5000_CPU_SCACHE
847	select RM7000_CPU_SCACHE
848	select SYS_HAS_CPU_R5000
849	select SYS_HAS_CPU_R10000 if BROKEN
850	select SYS_HAS_CPU_RM7000
851	select SYS_HAS_CPU_NEVADA
852	select SYS_SUPPORTS_64BIT_KERNEL
853	select SYS_SUPPORTS_BIG_ENDIAN
854	select WAR_ICACHE_REFILLS
855	help
856	  If you want this kernel to run on SGI O2 workstation, say Y here.
857
858config SIBYTE_CRHONE
859	bool "Sibyte BCM91125C-CRhone"
860	select BOOT_ELF32
861	select SIBYTE_BCM1125
862	select SWAP_IO_SPACE
863	select SYS_HAS_CPU_SB1
864	select SYS_SUPPORTS_BIG_ENDIAN
865	select SYS_SUPPORTS_HIGHMEM
866	select SYS_SUPPORTS_LITTLE_ENDIAN
867
868config SIBYTE_RHONE
869	bool "Sibyte BCM91125E-Rhone"
870	select BOOT_ELF32
871	select SIBYTE_SB1250
872	select SWAP_IO_SPACE
873	select SYS_HAS_CPU_SB1
874	select SYS_SUPPORTS_BIG_ENDIAN
875	select SYS_SUPPORTS_LITTLE_ENDIAN
876
877config SIBYTE_SWARM
878	bool "Sibyte BCM91250A-SWARM"
879	select BOOT_ELF32
880	select HAVE_PATA_PLATFORM
881	select SIBYTE_SB1250
882	select SWAP_IO_SPACE
883	select SYS_HAS_CPU_SB1
884	select SYS_SUPPORTS_BIG_ENDIAN
885	select SYS_SUPPORTS_HIGHMEM
886	select SYS_SUPPORTS_LITTLE_ENDIAN
887	select ZONE_DMA32 if 64BIT
888	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
889
890config SIBYTE_LITTLESUR
891	bool "Sibyte BCM91250C2-LittleSur"
892	select BOOT_ELF32
893	select HAVE_PATA_PLATFORM
894	select SIBYTE_SB1250
895	select SWAP_IO_SPACE
896	select SYS_HAS_CPU_SB1
897	select SYS_SUPPORTS_BIG_ENDIAN
898	select SYS_SUPPORTS_HIGHMEM
899	select SYS_SUPPORTS_LITTLE_ENDIAN
900	select ZONE_DMA32 if 64BIT
901
902config SIBYTE_SENTOSA
903	bool "Sibyte BCM91250E-Sentosa"
904	select BOOT_ELF32
905	select SIBYTE_SB1250
906	select SWAP_IO_SPACE
907	select SYS_HAS_CPU_SB1
908	select SYS_SUPPORTS_BIG_ENDIAN
909	select SYS_SUPPORTS_LITTLE_ENDIAN
910	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
911
912config SIBYTE_BIGSUR
913	bool "Sibyte BCM91480B-BigSur"
914	select BOOT_ELF32
915	select NR_CPUS_DEFAULT_4
916	select SIBYTE_BCM1x80
917	select SWAP_IO_SPACE
918	select SYS_HAS_CPU_SB1
919	select SYS_SUPPORTS_BIG_ENDIAN
920	select SYS_SUPPORTS_HIGHMEM
921	select SYS_SUPPORTS_LITTLE_ENDIAN
922	select ZONE_DMA32 if 64BIT
923	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
924
925config SNI_RM
926	bool "SNI RM200/300/400"
927	select ARC_MEMORY
928	select ARC_PROMLIB
929	select FW_ARC if CPU_LITTLE_ENDIAN
930	select FW_ARC32 if CPU_LITTLE_ENDIAN
931	select FW_SNIPROM if CPU_BIG_ENDIAN
932	select ARCH_MAY_HAVE_PC_FDC
933	select ARCH_MIGHT_HAVE_PC_PARPORT
934	select ARCH_MIGHT_HAVE_PC_SERIO
935	select BOOT_ELF32
936	select CEVT_R4K
937	select CSRC_R4K
938	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
939	select DMA_NONCOHERENT
940	select GENERIC_ISA_DMA
941	select HAVE_EISA
942	select HAVE_PCSPKR_PLATFORM
943	select HAVE_PCI
944	select IRQ_MIPS_CPU
945	select I8253
946	select I8259
947	select ISA
948	select MIPS_L1_CACHE_SHIFT_6
949	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
950	select SYS_HAS_CPU_R4X00
951	select SYS_HAS_CPU_R5000
952	select SYS_HAS_CPU_R10000
953	select R5000_CPU_SCACHE
954	select SYS_HAS_EARLY_PRINTK
955	select SYS_SUPPORTS_32BIT_KERNEL
956	select SYS_SUPPORTS_64BIT_KERNEL
957	select SYS_SUPPORTS_BIG_ENDIAN
958	select SYS_SUPPORTS_HIGHMEM
959	select SYS_SUPPORTS_LITTLE_ENDIAN
960	select WAR_R4600_V2_HIT_CACHEOP
961	help
962	  The SNI RM200/300/400 are MIPS-based machines manufactured by
963	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
964	  Technology and now in turn merged with Fujitsu.  Say Y here to
965	  support this machine type.
966
967config MACH_TX49XX
968	bool "Toshiba TX49 series based machines"
969	select WAR_TX49XX_ICACHE_INDEX_INV
970
971config MIKROTIK_RB532
972	bool "Mikrotik RB532 boards"
973	select CEVT_R4K
974	select CSRC_R4K
975	select DMA_NONCOHERENT
976	select HAVE_PCI
977	select IRQ_MIPS_CPU
978	select SYS_HAS_CPU_MIPS32_R1
979	select SYS_SUPPORTS_32BIT_KERNEL
980	select SYS_SUPPORTS_LITTLE_ENDIAN
981	select SWAP_IO_SPACE
982	select BOOT_RAW
983	select GPIOLIB
984	select MIPS_L1_CACHE_SHIFT_4
985	help
986	  Support the Mikrotik(tm) RouterBoard 532 series,
987	  based on the IDT RC32434 SoC.
988
989config CAVIUM_OCTEON_SOC
990	bool "Cavium Networks Octeon SoC based boards"
991	select CEVT_R4K
992	select ARCH_HAS_PHYS_TO_DMA
993	select HAVE_RAPIDIO
994	select PHYS_ADDR_T_64BIT
995	select SYS_SUPPORTS_64BIT_KERNEL
996	select SYS_SUPPORTS_BIG_ENDIAN
997	select EDAC_SUPPORT
998	select EDAC_ATOMIC_SCRUB
999	select SYS_SUPPORTS_LITTLE_ENDIAN
1000	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
1001	select SYS_HAS_EARLY_PRINTK
1002	select SYS_HAS_CPU_CAVIUM_OCTEON
1003	select HAVE_PCI
1004	select HAVE_PLAT_DELAY
1005	select HAVE_PLAT_FW_INIT_CMDLINE
1006	select HAVE_PLAT_MEMCPY
1007	select ZONE_DMA32
1008	select GPIOLIB
1009	select USE_OF
1010	select ARCH_SPARSEMEM_ENABLE
1011	select SYS_SUPPORTS_SMP
1012	select NR_CPUS_DEFAULT_64
1013	select MIPS_NR_CPU_NR_MAP_1024
1014	select BUILTIN_DTB
1015	select MTD
1016	select MTD_COMPLEX_MAPPINGS
1017	select SWIOTLB
1018	select SYS_SUPPORTS_RELOCATABLE
1019	help
1020	  This option supports all of the Octeon reference boards from Cavium
1021	  Networks. It builds a kernel that dynamically determines the Octeon
1022	  CPU type and supports all known board reference implementations.
1023	  Some of the supported boards are:
1024		EBT3000
1025		EBH3000
1026		EBH3100
1027		Thunder
1028		Kodama
1029		Hikari
1030	  Say Y here for most Octeon reference boards.
1031
1032endchoice
1033
1034config FIT_IMAGE_FDT_EPM5
1035	bool "Include FDT for Mobileye EyeQ5 development platforms"
1036	depends on MACH_EYEQ5
1037	default n
1038	help
1039	  Enable this to include the FDT for the EyeQ5 development platforms
1040	  from Mobileye in the FIT kernel image.
1041	  This requires u-boot on the platform.
1042
1043source "arch/mips/alchemy/Kconfig"
1044source "arch/mips/ath25/Kconfig"
1045source "arch/mips/ath79/Kconfig"
1046source "arch/mips/bcm47xx/Kconfig"
1047source "arch/mips/bcm63xx/Kconfig"
1048source "arch/mips/bmips/Kconfig"
1049source "arch/mips/econet/Kconfig"
1050source "arch/mips/generic/Kconfig"
1051source "arch/mips/ingenic/Kconfig"
1052source "arch/mips/jazz/Kconfig"
1053source "arch/mips/lantiq/Kconfig"
1054source "arch/mips/mobileye/Kconfig"
1055source "arch/mips/pic32/Kconfig"
1056source "arch/mips/ralink/Kconfig"
1057source "arch/mips/sgi-ip27/Kconfig"
1058source "arch/mips/sibyte/Kconfig"
1059source "arch/mips/txx9/Kconfig"
1060source "arch/mips/cavium-octeon/Kconfig"
1061source "arch/mips/loongson2ef/Kconfig"
1062source "arch/mips/loongson32/Kconfig"
1063source "arch/mips/loongson64/Kconfig"
1064
1065endmenu
1066
1067config GENERIC_HWEIGHT
1068	bool
1069	default y
1070
1071config GENERIC_CALIBRATE_DELAY
1072	bool
1073	default y
1074
1075config SCHED_OMIT_FRAME_POINTER
1076	bool
1077	default y
1078
1079#
1080# Select some configuration options automatically based on user selections.
1081#
1082config FW_ARC
1083	bool
1084
1085config ARCH_MAY_HAVE_PC_FDC
1086	bool
1087
1088config BOOT_RAW
1089	bool
1090
1091config CEVT_BCM1480
1092	bool
1093
1094config CEVT_DS1287
1095	bool
1096
1097config CEVT_GT641XX
1098	bool
1099
1100config CEVT_R4K
1101	bool
1102
1103config CEVT_SB1250
1104	bool
1105
1106config CEVT_TXX9
1107	bool
1108
1109config CSRC_BCM1480
1110	bool
1111
1112config CSRC_IOASIC
1113	bool
1114
1115config CSRC_R4K
1116	select CLOCKSOURCE_WATCHDOG if CPU_FREQ
1117	bool
1118
1119config CSRC_SB1250
1120	bool
1121
1122config MIPS_CLOCK_VSYSCALL
1123	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1124
1125config GPIO_TXX9
1126	select GPIOLIB
1127	bool
1128
1129config FW_CFE
1130	bool
1131
1132config ARCH_SUPPORTS_UPROBES
1133	def_bool y
1134
1135config DMA_NONCOHERENT
1136	bool
1137	#
1138	# MIPS allows mixing "slightly different" Cacheability and Coherency
1139	# Attribute bits.  It is believed that the uncached access through
1140	# KSEG1 and the implementation specific "uncached accelerated" used
1141	# by pgprot_writcombine can be mixed, and the latter sometimes provides
1142	# significant advantages.
1143	#
1144	select ARCH_HAS_SETUP_DMA_OPS
1145	select ARCH_HAS_DMA_WRITE_COMBINE
1146	select ARCH_HAS_DMA_PREP_COHERENT
1147	select ARCH_HAS_SYNC_DMA_FOR_CPU
1148	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1149	select ARCH_HAS_DMA_SET_UNCACHED
1150	select DMA_NONCOHERENT_MMAP
1151	select NEED_DMA_MAP_STATE
1152
1153config SYS_HAS_EARLY_PRINTK
1154	bool
1155
1156config SYS_SUPPORTS_HOTPLUG_CPU
1157	bool
1158
1159config MIPS_BONITO64
1160	bool
1161
1162config MIPS_MSC
1163	bool
1164
1165config SYNC_R4K
1166	bool
1167
1168config NO_IOPORT_MAP
1169	def_bool n
1170
1171config GENERIC_CSUM
1172	def_bool CPU_NO_LOAD_STORE_LR
1173
1174config GENERIC_ISA_DMA
1175	bool
1176	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1177	select ISA_DMA_API
1178
1179config GENERIC_ISA_DMA_SUPPORT_BROKEN
1180	bool
1181	select GENERIC_ISA_DMA
1182
1183config HAVE_PLAT_DELAY
1184	bool
1185
1186config HAVE_PLAT_FW_INIT_CMDLINE
1187	bool
1188
1189config HAVE_PLAT_MEMCPY
1190	bool
1191
1192config ISA_DMA_API
1193	bool
1194
1195config SYS_SUPPORTS_RELOCATABLE
1196	bool
1197	help
1198	  Selected if the platform supports relocating the kernel.
1199	  The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1200	  to allow access to command line and entropy sources.
1201
1202#
1203# Endianness selection.  Sufficiently obscure so many users don't know what to
1204# answer,so we try hard to limit the available choices.  Also the use of a
1205# choice statement should be more obvious to the user.
1206#
1207choice
1208	prompt "Endianness selection"
1209	help
1210	  Some MIPS machines can be configured for either little or big endian
1211	  byte order. These modes require different kernels and a different
1212	  Linux distribution.  In general there is one preferred byteorder for a
1213	  particular system but some systems are just as commonly used in the
1214	  one or the other endianness.
1215
1216config CPU_BIG_ENDIAN
1217	bool "Big endian"
1218	depends on SYS_SUPPORTS_BIG_ENDIAN
1219
1220config CPU_LITTLE_ENDIAN
1221	bool "Little endian"
1222	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1223
1224endchoice
1225
1226config EXPORT_UASM
1227	bool
1228
1229config SYS_SUPPORTS_APM_EMULATION
1230	bool
1231
1232config SYS_SUPPORTS_BIG_ENDIAN
1233	bool
1234
1235config SYS_SUPPORTS_LITTLE_ENDIAN
1236	bool
1237
1238config MIPS_HUGE_TLB_SUPPORT
1239	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1240
1241config IRQ_TXX9
1242	bool
1243
1244config IRQ_GT641XX
1245	bool
1246
1247config PCI_GT64XXX_PCI0
1248	bool
1249
1250config PCI_XTALK_BRIDGE
1251	bool
1252
1253config NO_EXCEPT_FILL
1254	bool
1255
1256config MIPS_SPRAM
1257	bool
1258
1259config SWAP_IO_SPACE
1260	bool
1261
1262config SGI_HAS_INDYDOG
1263	bool
1264
1265config SGI_HAS_HAL2
1266	bool
1267
1268config SGI_HAS_SEEQ
1269	bool
1270
1271config SGI_HAS_WD93
1272	bool
1273
1274config SGI_HAS_ZILOG
1275	bool
1276
1277config SGI_HAS_I8042
1278	bool
1279
1280config DEFAULT_SGI_PARTITION
1281	bool
1282
1283config FW_ARC32
1284	bool
1285
1286config FW_SNIPROM
1287	bool
1288
1289config BOOT_ELF32
1290	bool
1291
1292config MIPS_L1_CACHE_SHIFT_4
1293	bool
1294
1295config MIPS_L1_CACHE_SHIFT_5
1296	bool
1297
1298config MIPS_L1_CACHE_SHIFT_6
1299	bool
1300
1301config MIPS_L1_CACHE_SHIFT_7
1302	bool
1303
1304config MIPS_L1_CACHE_SHIFT
1305	int
1306	default "7" if MIPS_L1_CACHE_SHIFT_7
1307	default "6" if MIPS_L1_CACHE_SHIFT_6
1308	default "5" if MIPS_L1_CACHE_SHIFT_5
1309	default "4" if MIPS_L1_CACHE_SHIFT_4
1310	default "5"
1311
1312config ARC_CMDLINE_ONLY
1313	bool
1314
1315config ARC_CONSOLE
1316	bool "ARC console support"
1317	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1318
1319config ARC_MEMORY
1320	bool
1321
1322config ARC_PROMLIB
1323	bool
1324
1325config FW_ARC64
1326	bool
1327
1328config BOOT_ELF64
1329	bool
1330
1331menu "CPU selection"
1332
1333choice
1334	prompt "CPU type"
1335	default CPU_R4X00
1336
1337config CPU_LOONGSON64
1338	bool "Loongson 64-bit CPU"
1339	depends on SYS_HAS_CPU_LOONGSON64
1340	select ARCH_HAS_PHYS_TO_DMA
1341	select CPU_MIPSR2
1342	select CPU_HAS_PREFETCH
1343	select CPU_SUPPORTS_64BIT_KERNEL
1344	select CPU_SUPPORTS_HIGHMEM
1345	select CPU_SUPPORTS_HUGEPAGES
1346	select CPU_SUPPORTS_MSA
1347	select CPU_SUPPORTS_VZ
1348	select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
1349	select CPU_MIPSR2_IRQ_VI
1350	select DMA_NONCOHERENT
1351	select WEAK_ORDERING
1352	select WEAK_REORDERING_BEYOND_LLSC
1353	select MIPS_ASID_BITS_VARIABLE
1354	select MIPS_PGD_C0_CONTEXT
1355	select MIPS_L1_CACHE_SHIFT_6
1356	select MIPS_FP_SUPPORT
1357	select GPIOLIB
1358	select SWIOTLB
1359	help
1360	  The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
1361	  cores implements the MIPS64R2 instruction set with many extensions,
1362	  including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
1363	  3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
1364	  Loongson-2E/2F is not covered here and will be removed in future.
1365
1366config CPU_LOONGSON2E
1367	bool "Loongson 2E"
1368	depends on SYS_HAS_CPU_LOONGSON2E
1369	select CPU_LOONGSON2EF
1370	help
1371	  The Loongson 2E processor implements the MIPS III instruction set
1372	  with many extensions.
1373
1374	  It has an internal FPGA northbridge, which is compatible to
1375	  bonito64.
1376
1377config CPU_LOONGSON2F
1378	bool "Loongson 2F"
1379	depends on SYS_HAS_CPU_LOONGSON2F
1380	select CPU_LOONGSON2EF
1381	help
1382	  The Loongson 2F processor implements the MIPS III instruction set
1383	  with many extensions.
1384
1385	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1386	  have a similar programming interface with FPGA northbridge used in
1387	  Loongson2E.
1388
1389config CPU_LOONGSON1B
1390	bool "Loongson 1B"
1391	depends on SYS_HAS_CPU_LOONGSON1B
1392	select CPU_LOONGSON32
1393	select LEDS_GPIO_REGISTER
1394	help
1395	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1396	  Release 1 instruction set and part of the MIPS32 Release 2
1397	  instruction set.
1398
1399config CPU_LOONGSON1C
1400	bool "Loongson 1C"
1401	depends on SYS_HAS_CPU_LOONGSON1C
1402	select CPU_LOONGSON32
1403	select LEDS_GPIO_REGISTER
1404	help
1405	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1406	  Release 1 instruction set and part of the MIPS32 Release 2
1407	  instruction set.
1408
1409config CPU_MIPS32_R1
1410	bool "MIPS32 Release 1"
1411	depends on SYS_HAS_CPU_MIPS32_R1
1412	select CPU_HAS_PREFETCH
1413	select CPU_SUPPORTS_32BIT_KERNEL
1414	select CPU_SUPPORTS_HIGHMEM
1415	help
1416	  Choose this option to build a kernel for release 1 or later of the
1417	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1418	  MIPS processor are based on a MIPS32 processor.  If you know the
1419	  specific type of processor in your system, choose those that one
1420	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1421	  Release 2 of the MIPS32 architecture is available since several
1422	  years so chances are you even have a MIPS32 Release 2 processor
1423	  in which case you should choose CPU_MIPS32_R2 instead for better
1424	  performance.
1425
1426config CPU_MIPS32_R2
1427	bool "MIPS32 Release 2"
1428	depends on SYS_HAS_CPU_MIPS32_R2
1429	select CPU_HAS_PREFETCH
1430	select CPU_SUPPORTS_32BIT_KERNEL
1431	select CPU_SUPPORTS_HIGHMEM
1432	select CPU_SUPPORTS_MSA
1433	help
1434	  Choose this option to build a kernel for release 2 or later of the
1435	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1436	  MIPS processor are based on a MIPS32 processor.  If you know the
1437	  specific type of processor in your system, choose those that one
1438	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1439
1440config CPU_MIPS32_R5
1441	bool "MIPS32 Release 5"
1442	depends on SYS_HAS_CPU_MIPS32_R5
1443	select CPU_HAS_PREFETCH
1444	select CPU_SUPPORTS_32BIT_KERNEL
1445	select CPU_SUPPORTS_HIGHMEM
1446	select CPU_SUPPORTS_MSA
1447	select CPU_SUPPORTS_VZ
1448	select MIPS_O32_FP64_SUPPORT
1449	help
1450	  Choose this option to build a kernel for release 5 or later of the
1451	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1452	  family, are based on a MIPS32r5 processor. If you own an older
1453	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1454
1455config CPU_MIPS32_R6
1456	bool "MIPS32 Release 6"
1457	depends on SYS_HAS_CPU_MIPS32_R6
1458	select CPU_HAS_PREFETCH
1459	select CPU_NO_LOAD_STORE_LR
1460	select CPU_SUPPORTS_32BIT_KERNEL
1461	select CPU_SUPPORTS_HIGHMEM
1462	select CPU_SUPPORTS_MSA
1463	select CPU_SUPPORTS_VZ
1464	select MIPS_O32_FP64_SUPPORT
1465	help
1466	  Choose this option to build a kernel for release 6 or later of the
1467	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1468	  family, are based on a MIPS32r6 processor. If you own an older
1469	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1470
1471config CPU_MIPS64_R1
1472	bool "MIPS64 Release 1"
1473	depends on SYS_HAS_CPU_MIPS64_R1
1474	select CPU_HAS_PREFETCH
1475	select CPU_SUPPORTS_32BIT_KERNEL
1476	select CPU_SUPPORTS_64BIT_KERNEL
1477	select CPU_SUPPORTS_HIGHMEM
1478	select CPU_SUPPORTS_HUGEPAGES
1479	help
1480	  Choose this option to build a kernel for release 1 or later of the
1481	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1482	  MIPS processor are based on a MIPS64 processor.  If you know the
1483	  specific type of processor in your system, choose those that one
1484	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1485	  Release 2 of the MIPS64 architecture is available since several
1486	  years so chances are you even have a MIPS64 Release 2 processor
1487	  in which case you should choose CPU_MIPS64_R2 instead for better
1488	  performance.
1489
1490config CPU_MIPS64_R2
1491	bool "MIPS64 Release 2"
1492	depends on SYS_HAS_CPU_MIPS64_R2
1493	select CPU_HAS_PREFETCH
1494	select CPU_SUPPORTS_32BIT_KERNEL
1495	select CPU_SUPPORTS_64BIT_KERNEL
1496	select CPU_SUPPORTS_HIGHMEM
1497	select CPU_SUPPORTS_HUGEPAGES
1498	select CPU_SUPPORTS_MSA
1499	help
1500	  Choose this option to build a kernel for release 2 or later of the
1501	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1502	  MIPS processor are based on a MIPS64 processor.  If you know the
1503	  specific type of processor in your system, choose those that one
1504	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1505
1506config CPU_MIPS64_R5
1507	bool "MIPS64 Release 5"
1508	depends on SYS_HAS_CPU_MIPS64_R5
1509	select CPU_HAS_PREFETCH
1510	select CPU_SUPPORTS_32BIT_KERNEL
1511	select CPU_SUPPORTS_64BIT_KERNEL
1512	select CPU_SUPPORTS_HIGHMEM
1513	select CPU_SUPPORTS_HUGEPAGES
1514	select CPU_SUPPORTS_MSA
1515	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1516	select CPU_SUPPORTS_VZ
1517	help
1518	  Choose this option to build a kernel for release 5 or later of the
1519	  MIPS64 architecture.  This is a intermediate MIPS architecture
1520	  release partly implementing release 6 features. Though there is no
1521	  any hardware known to be based on this release.
1522
1523config CPU_MIPS64_R6
1524	bool "MIPS64 Release 6"
1525	depends on SYS_HAS_CPU_MIPS64_R6
1526	select CPU_HAS_PREFETCH
1527	select CPU_NO_LOAD_STORE_LR
1528	select CPU_SUPPORTS_32BIT_KERNEL
1529	select CPU_SUPPORTS_64BIT_KERNEL
1530	select CPU_SUPPORTS_HIGHMEM
1531	select CPU_SUPPORTS_HUGEPAGES
1532	select CPU_SUPPORTS_MSA
1533	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1534	select CPU_SUPPORTS_VZ
1535	help
1536	  Choose this option to build a kernel for release 6 or later of the
1537	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1538	  family, are based on a MIPS64r6 processor. If you own an older
1539	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1540
1541config CPU_P5600
1542	bool "MIPS Warrior P5600"
1543	depends on SYS_HAS_CPU_P5600
1544	select CPU_HAS_PREFETCH
1545	select CPU_SUPPORTS_32BIT_KERNEL
1546	select CPU_SUPPORTS_HIGHMEM
1547	select CPU_SUPPORTS_MSA
1548	select CPU_SUPPORTS_CPUFREQ
1549	select CPU_SUPPORTS_VZ
1550	select CPU_MIPSR2_IRQ_VI
1551	select CPU_MIPSR2_IRQ_EI
1552	select MIPS_O32_FP64_SUPPORT
1553	help
1554	  Choose this option to build a kernel for MIPS Warrior P5600 CPU.
1555	  It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes,
1556	  MMU with two-levels TLB, UCA, MSA, MDU core level features and system
1557	  level features like up to six P5600 calculation cores, CM2 with L2
1558	  cache, IOCU/IOMMU (though might be unused depending on the system-
1559	  specific IP core configuration), GIC, CPC, virtualisation module,
1560	  eJTAG and PDtrace.
1561
1562config CPU_R3000
1563	bool "R3000"
1564	depends on SYS_HAS_CPU_R3000
1565	select CPU_HAS_WB
1566	select CPU_R3K_TLB
1567	select CPU_SUPPORTS_32BIT_KERNEL
1568	select CPU_SUPPORTS_HIGHMEM
1569	help
1570	  Please make sure to pick the right CPU type. Linux/MIPS is not
1571	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1572	  *not* work on R4000 machines and vice versa.  However, since most
1573	  of the supported machines have an R4000 (or similar) CPU, R4x00
1574	  might be a safe bet.  If the resulting kernel does not work,
1575	  try to recompile with R3000.
1576
1577config CPU_R4300
1578	bool "R4300"
1579	depends on SYS_HAS_CPU_R4300
1580	select CPU_SUPPORTS_32BIT_KERNEL
1581	select CPU_SUPPORTS_64BIT_KERNEL
1582	help
1583	  MIPS Technologies R4300-series processors.
1584
1585config CPU_R4X00
1586	bool "R4x00"
1587	depends on SYS_HAS_CPU_R4X00
1588	select CPU_SUPPORTS_32BIT_KERNEL
1589	select CPU_SUPPORTS_64BIT_KERNEL
1590	select CPU_SUPPORTS_HUGEPAGES
1591	help
1592	  MIPS Technologies R4000-series processors other than 4300, including
1593	  the R4000, R4400, R4600, and 4700.
1594
1595config CPU_TX49XX
1596	bool "R49XX"
1597	depends on SYS_HAS_CPU_TX49XX
1598	select CPU_HAS_PREFETCH
1599	select CPU_SUPPORTS_32BIT_KERNEL
1600	select CPU_SUPPORTS_64BIT_KERNEL
1601	select CPU_SUPPORTS_HUGEPAGES
1602
1603config CPU_R5000
1604	bool "R5000"
1605	depends on SYS_HAS_CPU_R5000
1606	select CPU_SUPPORTS_32BIT_KERNEL
1607	select CPU_SUPPORTS_64BIT_KERNEL
1608	select CPU_SUPPORTS_HUGEPAGES
1609	help
1610	  MIPS Technologies R5000-series processors other than the Nevada.
1611
1612config CPU_R5500
1613	bool "R5500"
1614	depends on SYS_HAS_CPU_R5500
1615	select CPU_SUPPORTS_32BIT_KERNEL
1616	select CPU_SUPPORTS_64BIT_KERNEL
1617	select CPU_SUPPORTS_HUGEPAGES
1618	help
1619	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1620	  instruction set.
1621
1622config CPU_NEVADA
1623	bool "RM52xx"
1624	depends on SYS_HAS_CPU_NEVADA
1625	select CPU_SUPPORTS_32BIT_KERNEL
1626	select CPU_SUPPORTS_64BIT_KERNEL
1627	select CPU_SUPPORTS_HUGEPAGES
1628	help
1629	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1630
1631config CPU_R10000
1632	bool "R10000"
1633	depends on SYS_HAS_CPU_R10000
1634	select CPU_HAS_PREFETCH
1635	select CPU_SUPPORTS_32BIT_KERNEL
1636	select CPU_SUPPORTS_64BIT_KERNEL
1637	select CPU_SUPPORTS_HIGHMEM
1638	select CPU_SUPPORTS_HUGEPAGES
1639	help
1640	  MIPS Technologies R10000-series processors.
1641
1642config CPU_RM7000
1643	bool "RM7000"
1644	depends on SYS_HAS_CPU_RM7000
1645	select CPU_HAS_PREFETCH
1646	select CPU_SUPPORTS_32BIT_KERNEL
1647	select CPU_SUPPORTS_64BIT_KERNEL
1648	select CPU_SUPPORTS_HIGHMEM
1649	select CPU_SUPPORTS_HUGEPAGES
1650
1651config CPU_SB1
1652	bool "SB1"
1653	depends on SYS_HAS_CPU_SB1
1654	select CPU_SUPPORTS_32BIT_KERNEL
1655	select CPU_SUPPORTS_64BIT_KERNEL
1656	select CPU_SUPPORTS_HIGHMEM
1657	select CPU_SUPPORTS_HUGEPAGES
1658	select WEAK_ORDERING
1659
1660config CPU_CAVIUM_OCTEON
1661	bool "Cavium Octeon processor"
1662	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1663	select CPU_HAS_PREFETCH
1664	select CPU_SUPPORTS_64BIT_KERNEL
1665	select HAVE_PAGE_SIZE_8KB if !MIPS_VA_BITS_48
1666	select HAVE_PAGE_SIZE_32KB if !MIPS_VA_BITS_48
1667	select WEAK_ORDERING
1668	select CPU_SUPPORTS_HIGHMEM
1669	select CPU_SUPPORTS_HUGEPAGES
1670	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1671	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1672	select MIPS_L1_CACHE_SHIFT_7
1673	select CPU_SUPPORTS_VZ
1674	help
1675	  The Cavium Octeon processor is a highly integrated chip containing
1676	  many ethernet hardware widgets for networking tasks. The processor
1677	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1678	  Full details can be found at http://www.caviumnetworks.com.
1679
1680config CPU_BMIPS
1681	bool "Broadcom BMIPS"
1682	depends on SYS_HAS_CPU_BMIPS
1683	select CPU_MIPS32
1684	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1685	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1686	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1687	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1688	select CPU_SUPPORTS_32BIT_KERNEL
1689	select DMA_NONCOHERENT
1690	select IRQ_MIPS_CPU
1691	select SWAP_IO_SPACE
1692	select WEAK_ORDERING
1693	select CPU_SUPPORTS_HIGHMEM
1694	select CPU_HAS_PREFETCH
1695	select CPU_SUPPORTS_CPUFREQ
1696	select MIPS_EXTERNAL_TIMER
1697	select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
1698	help
1699	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1700
1701endchoice
1702
1703config LOONGSON3_ENHANCEMENT
1704	bool "New Loongson-3 CPU Enhancements"
1705	default n
1706	depends on CPU_LOONGSON64
1707	help
1708	  New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1709	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1710	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1711	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1712	  Fast TLB refill support, etc.
1713
1714	  This option enable those enhancements which are not probed at run
1715	  time. If you want a generic kernel to run on all Loongson 3 machines,
1716	  please say 'N' here. If you want a high-performance kernel to run on
1717	  new Loongson-3 machines only, please say 'Y' here.
1718
1719config CPU_LOONGSON3_WORKAROUNDS
1720	bool "Loongson-3 LLSC Workarounds"
1721	default y if SMP
1722	depends on CPU_LOONGSON64
1723	help
1724	  Loongson-3 processors have the llsc issues which require workarounds.
1725	  Without workarounds the system may hang unexpectedly.
1726
1727	  Say Y, unless you know what you are doing.
1728
1729config CPU_LOONGSON3_CPUCFG_EMULATION
1730	bool "Emulate the CPUCFG instruction on older Loongson cores"
1731	default y
1732	depends on CPU_LOONGSON64
1733	help
1734	  Loongson-3A R4 and newer have the CPUCFG instruction available for
1735	  userland to query CPU capabilities, much like CPUID on x86. This
1736	  option provides emulation of the instruction on older Loongson
1737	  cores, back to Loongson-3A1000.
1738
1739	  If unsure, please say Y.
1740
1741config CPU_MIPS32_3_5_FEATURES
1742	bool "MIPS32 Release 3.5 Features"
1743	depends on SYS_HAS_CPU_MIPS32_R3_5
1744	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \
1745		   CPU_P5600
1746	help
1747	  Choose this option to build a kernel for release 2 or later of the
1748	  MIPS32 architecture including features from the 3.5 release such as
1749	  support for Enhanced Virtual Addressing (EVA).
1750
1751config CPU_MIPS32_3_5_EVA
1752	bool "Enhanced Virtual Addressing (EVA)"
1753	depends on CPU_MIPS32_3_5_FEATURES
1754	select EVA
1755	default y
1756	help
1757	  Choose this option if you want to enable the Enhanced Virtual
1758	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1759	  One of its primary benefits is an increase in the maximum size
1760	  of lowmem (up to 3GB). If unsure, say 'N' here.
1761
1762config CPU_MIPS32_R5_FEATURES
1763	bool "MIPS32 Release 5 Features"
1764	depends on SYS_HAS_CPU_MIPS32_R5
1765	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600
1766	help
1767	  Choose this option to build a kernel for release 2 or later of the
1768	  MIPS32 architecture including features from release 5 such as
1769	  support for Extended Physical Addressing (XPA).
1770
1771config CPU_MIPS32_R5_XPA
1772	bool "Extended Physical Addressing (XPA)"
1773	depends on CPU_MIPS32_R5_FEATURES
1774	depends on !EVA
1775	depends on !PAGE_SIZE_4KB
1776	depends on SYS_SUPPORTS_HIGHMEM
1777	select XPA
1778	select HIGHMEM
1779	select PHYS_ADDR_T_64BIT
1780	default n
1781	help
1782	  Choose this option if you want to enable the Extended Physical
1783	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1784	  benefit is to increase physical addressing equal to or greater
1785	  than 40 bits. Note that this has the side effect of turning on
1786	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1787	  If unsure, say 'N' here.
1788
1789if CPU_LOONGSON2F
1790config CPU_NOP_WORKAROUNDS
1791	bool
1792
1793config CPU_JUMP_WORKAROUNDS
1794	bool
1795
1796config CPU_LOONGSON2F_WORKAROUNDS
1797	bool "Loongson 2F Workarounds"
1798	default y
1799	select CPU_NOP_WORKAROUNDS
1800	select CPU_JUMP_WORKAROUNDS
1801	help
1802	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1803	  require workarounds.  Without workarounds the system may hang
1804	  unexpectedly.  For more information please refer to the gas
1805	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1806
1807	  Loongson 2F03 and later have fixed these issues and no workarounds
1808	  are needed.  The workarounds have no significant side effect on them
1809	  but may decrease the performance of the system so this option should
1810	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1811	  systems.
1812
1813	  If unsure, please say Y.
1814endif # CPU_LOONGSON2F
1815
1816config SYS_SUPPORTS_ZBOOT
1817	bool
1818	select HAVE_KERNEL_GZIP
1819	select HAVE_KERNEL_BZIP2
1820	select HAVE_KERNEL_LZ4
1821	select HAVE_KERNEL_LZMA
1822	select HAVE_KERNEL_LZO
1823	select HAVE_KERNEL_XZ
1824	select HAVE_KERNEL_ZSTD
1825
1826config SYS_SUPPORTS_ZBOOT_UART16550
1827	bool
1828	select SYS_SUPPORTS_ZBOOT
1829
1830config SYS_SUPPORTS_ZBOOT_UART_PROM
1831	bool
1832	select SYS_SUPPORTS_ZBOOT
1833
1834config CPU_LOONGSON2EF
1835	bool
1836	select CPU_SUPPORTS_32BIT_KERNEL
1837	select CPU_SUPPORTS_64BIT_KERNEL
1838	select CPU_SUPPORTS_HIGHMEM
1839	select CPU_SUPPORTS_HUGEPAGES
1840
1841config CPU_LOONGSON32
1842	bool
1843	select CPU_MIPS32
1844	select CPU_MIPSR2
1845	select CPU_HAS_PREFETCH
1846	select CPU_SUPPORTS_32BIT_KERNEL
1847	select CPU_SUPPORTS_HIGHMEM
1848	select CPU_SUPPORTS_CPUFREQ
1849
1850config CPU_BMIPS32_3300
1851	select SMP_UP if SMP
1852	bool
1853
1854config CPU_BMIPS4350
1855	bool
1856	select SYS_SUPPORTS_SMP
1857	select SYS_SUPPORTS_HOTPLUG_CPU
1858
1859config CPU_BMIPS4380
1860	bool
1861	select MIPS_L1_CACHE_SHIFT_6
1862	select SYS_SUPPORTS_SMP
1863	select SYS_SUPPORTS_HOTPLUG_CPU
1864	select CPU_HAS_RIXI
1865
1866config CPU_BMIPS5000
1867	bool
1868	select MIPS_CPU_SCACHE
1869	select MIPS_L1_CACHE_SHIFT_7
1870	select SYS_SUPPORTS_SMP
1871	select SYS_SUPPORTS_HOTPLUG_CPU
1872	select CPU_HAS_RIXI
1873
1874config SYS_HAS_CPU_LOONGSON64
1875	bool
1876	select CPU_SUPPORTS_CPUFREQ
1877	select CPU_HAS_RIXI
1878
1879config SYS_HAS_CPU_LOONGSON2E
1880	bool
1881
1882config SYS_HAS_CPU_LOONGSON2F
1883	bool
1884	select CPU_SUPPORTS_CPUFREQ
1885	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1886
1887config SYS_HAS_CPU_LOONGSON1B
1888	bool
1889
1890config SYS_HAS_CPU_LOONGSON1C
1891	bool
1892
1893config SYS_HAS_CPU_MIPS32_R1
1894	bool
1895
1896config SYS_HAS_CPU_MIPS32_R2
1897	bool
1898
1899config SYS_HAS_CPU_MIPS32_R3_5
1900	bool
1901
1902config SYS_HAS_CPU_MIPS32_R5
1903	bool
1904
1905config SYS_HAS_CPU_MIPS32_R6
1906	bool
1907
1908config SYS_HAS_CPU_MIPS64_R1
1909	bool
1910
1911config SYS_HAS_CPU_MIPS64_R2
1912	bool
1913
1914config SYS_HAS_CPU_MIPS64_R5
1915	bool
1916
1917config SYS_HAS_CPU_MIPS64_R6
1918	bool
1919
1920config SYS_HAS_CPU_P5600
1921	bool
1922
1923config SYS_HAS_CPU_R3000
1924	bool
1925
1926config SYS_HAS_CPU_R4300
1927	bool
1928
1929config SYS_HAS_CPU_R4X00
1930	bool
1931
1932config SYS_HAS_CPU_TX49XX
1933	bool
1934
1935config SYS_HAS_CPU_R5000
1936	bool
1937
1938config SYS_HAS_CPU_R5500
1939	bool
1940
1941config SYS_HAS_CPU_NEVADA
1942	bool
1943
1944config SYS_HAS_CPU_R10000
1945	bool
1946
1947config SYS_HAS_CPU_RM7000
1948	bool
1949
1950config SYS_HAS_CPU_SB1
1951	bool
1952
1953config SYS_HAS_CPU_CAVIUM_OCTEON
1954	bool
1955
1956config SYS_HAS_CPU_BMIPS
1957	bool
1958
1959config SYS_HAS_CPU_BMIPS32_3300
1960	bool
1961	select SYS_HAS_CPU_BMIPS
1962
1963config SYS_HAS_CPU_BMIPS4350
1964	bool
1965	select SYS_HAS_CPU_BMIPS
1966
1967config SYS_HAS_CPU_BMIPS4380
1968	bool
1969	select SYS_HAS_CPU_BMIPS
1970
1971config SYS_HAS_CPU_BMIPS5000
1972	bool
1973	select SYS_HAS_CPU_BMIPS
1974
1975#
1976# CPU may reorder R->R, R->W, W->R, W->W
1977# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
1978#
1979config WEAK_ORDERING
1980	bool
1981
1982#
1983# CPU may reorder reads and writes beyond LL/SC
1984# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
1985#
1986config WEAK_REORDERING_BEYOND_LLSC
1987	bool
1988endmenu
1989
1990#
1991# These two indicate any level of the MIPS32 and MIPS64 architecture
1992#
1993config CPU_MIPS32
1994	bool
1995	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \
1996		     CPU_MIPS32_R6 || CPU_P5600
1997
1998config CPU_MIPS64
1999	bool
2000	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
2001		     CPU_MIPS64_R6 || CPU_LOONGSON64 || CPU_CAVIUM_OCTEON
2002
2003#
2004# These indicate the revision of the architecture
2005#
2006config CPU_MIPSR1
2007	bool
2008	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2009
2010config CPU_MIPSR2
2011	bool
2012	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2013	select CPU_HAS_RIXI
2014	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2015	select MIPS_SPRAM
2016
2017config CPU_MIPSR5
2018	bool
2019	default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600
2020	select CPU_HAS_RIXI
2021	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2022	select MIPS_SPRAM
2023
2024config CPU_MIPSR6
2025	bool
2026	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2027	select CPU_HAS_RIXI
2028	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2029	select HAVE_ARCH_BITREVERSE
2030	select MIPS_ASID_BITS_VARIABLE
2031	select MIPS_SPRAM
2032
2033config TARGET_ISA_REV
2034	int
2035	default 1 if CPU_MIPSR1
2036	default 2 if CPU_MIPSR2
2037	default 5 if CPU_MIPSR5
2038	default 6 if CPU_MIPSR6
2039	default 0
2040	help
2041	  Reflects the ISA revision being targeted by the kernel build. This
2042	  is effectively the Kconfig equivalent of MIPS_ISA_REV.
2043
2044config EVA
2045	bool
2046
2047config XPA
2048	bool
2049
2050config SYS_SUPPORTS_32BIT_KERNEL
2051	bool
2052config SYS_SUPPORTS_64BIT_KERNEL
2053	bool
2054config CPU_SUPPORTS_32BIT_KERNEL
2055	bool
2056config CPU_SUPPORTS_64BIT_KERNEL
2057	bool
2058config CPU_SUPPORTS_CPUFREQ
2059	bool
2060config CPU_SUPPORTS_ADDRWINCFG
2061	bool
2062config CPU_SUPPORTS_HUGEPAGES
2063	bool
2064	depends on !(32BIT && (PHYS_ADDR_T_64BIT || EVA))
2065config CPU_SUPPORTS_VZ
2066	bool
2067config MIPS_PGD_C0_CONTEXT
2068	bool
2069	depends on 64BIT
2070	default y if (CPU_MIPSR2 || CPU_MIPSR6)
2071
2072#
2073# Set to y for ptrace access to watch registers.
2074#
2075config HARDWARE_WATCHPOINTS
2076	bool
2077	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2078
2079menu "Kernel type"
2080
2081choice
2082	prompt "Kernel code model"
2083	help
2084	  You should only select this option if you have a workload that
2085	  actually benefits from 64-bit processing or if your machine has
2086	  large memory.  You will only be presented a single option in this
2087	  menu if your system does not support both 32-bit and 64-bit kernels.
2088
2089config 32BIT
2090	bool "32-bit kernel"
2091	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2092	select TRAD_SIGNALS
2093	help
2094	  Select this option if you want to build a 32-bit kernel.
2095
2096config 64BIT
2097	bool "64-bit kernel"
2098	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2099	help
2100	  Select this option if you want to build a 64-bit kernel.
2101
2102endchoice
2103
2104config MIPS_VA_BITS_48
2105	bool "48 bits virtual memory"
2106	depends on 64BIT
2107	help
2108	  Support a maximum at least 48 bits of application virtual
2109	  memory.  Default is 40 bits or less, depending on the CPU.
2110	  For page sizes 16k and above, this option results in a small
2111	  memory overhead for page tables.  For 4k page size, a fourth
2112	  level of page tables is added which imposes both a memory
2113	  overhead as well as slower TLB fault handling.
2114
2115	  If unsure, say N.
2116
2117config ZBOOT_LOAD_ADDRESS
2118	hex "Compressed kernel load address"
2119	default 0xffffffff80400000 if BCM47XX
2120	default 0x0
2121	depends on SYS_SUPPORTS_ZBOOT
2122	help
2123	  The address to load compressed kernel, aka vmlinuz.
2124
2125	  This is only used if non-zero.
2126
2127config ARCH_FORCE_MAX_ORDER
2128	int "Maximum zone order"
2129	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2130	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2131	default "11" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2132	default "10"
2133	help
2134	  The kernel memory allocator divides physically contiguous memory
2135	  blocks into "zones", where each zone is a power of two number of
2136	  pages.  This option selects the largest power of two that the kernel
2137	  keeps in the memory allocator.  If you need to allocate very large
2138	  blocks of physically contiguous memory, then you may need to
2139	  increase this value.
2140
2141	  The page size is not necessarily 4KB.  Keep this in mind
2142	  when choosing a value for this option.
2143
2144config BOARD_SCACHE
2145	bool
2146
2147config IP22_CPU_SCACHE
2148	bool
2149	select BOARD_SCACHE
2150
2151#
2152# Support for a MIPS32 / MIPS64 style S-caches
2153#
2154config MIPS_CPU_SCACHE
2155	bool
2156	select BOARD_SCACHE
2157
2158config R5000_CPU_SCACHE
2159	bool
2160	select BOARD_SCACHE
2161
2162config RM7000_CPU_SCACHE
2163	bool
2164	select BOARD_SCACHE
2165
2166config SIBYTE_DMA_PAGEOPS
2167	bool "Use DMA to clear/copy pages"
2168	depends on CPU_SB1
2169	help
2170	  Instead of using the CPU to zero and copy pages, use a Data Mover
2171	  channel.  These DMA channels are otherwise unused by the standard
2172	  SiByte Linux port.  Seems to give a small performance benefit.
2173
2174config CPU_HAS_PREFETCH
2175	bool
2176
2177config CPU_GENERIC_DUMP_TLB
2178	bool
2179	default y if !CPU_R3000
2180
2181config MIPS_FP_SUPPORT
2182	bool "Floating Point support" if EXPERT
2183	default y
2184	help
2185	  Select y to include support for floating point in the kernel
2186	  including initialization of FPU hardware, FP context save & restore
2187	  and emulation of an FPU where necessary. Without this support any
2188	  userland program attempting to use floating point instructions will
2189	  receive a SIGILL.
2190
2191	  If you know that your userland will not attempt to use floating point
2192	  instructions then you can say n here to shrink the kernel a little.
2193
2194	  If unsure, say y.
2195
2196config CPU_R2300_FPU
2197	bool
2198	depends on MIPS_FP_SUPPORT
2199	default y if CPU_R3000
2200
2201config CPU_R3K_TLB
2202	bool
2203
2204config CPU_R4K_FPU
2205	bool
2206	depends on MIPS_FP_SUPPORT
2207	default y if !CPU_R2300_FPU
2208
2209config CPU_R4K_CACHE_TLB
2210	bool
2211	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2212
2213config MIPS_MT_SMP
2214	bool "MIPS MT SMP support (1 TC on each available VPE)"
2215	default y
2216	depends on TARGET_ISA_REV > 0 && TARGET_ISA_REV < 6
2217	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MICROMIPS
2218	select CPU_MIPSR2_IRQ_VI
2219	select CPU_MIPSR2_IRQ_EI
2220	select SYNC_R4K
2221	select MIPS_MT
2222	select SMP
2223	select SMP_UP
2224	select SYS_SUPPORTS_SMP
2225	select SYS_SUPPORTS_SCHED_SMT
2226	select MIPS_PERF_SHARED_TC_COUNTERS
2227	help
2228	  This is a kernel model which is known as SMVP. This is supported
2229	  on cores with the MT ASE and uses the available VPEs to implement
2230	  virtual processors which supports SMP. This is equivalent to the
2231	  Intel Hyperthreading feature. For further information go to
2232	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2233
2234config MIPS_MT
2235	bool
2236
2237config SCHED_SMT
2238	bool "SMT (multithreading) scheduler support"
2239	depends on SYS_SUPPORTS_SCHED_SMT
2240	default n
2241	help
2242	  SMT scheduler support improves the CPU scheduler's decision making
2243	  when dealing with MIPS MT enabled cores at a cost of slightly
2244	  increased overhead in some places. If unsure say N here.
2245
2246config SYS_SUPPORTS_SCHED_SMT
2247	bool
2248
2249config SYS_SUPPORTS_MULTITHREADING
2250	bool
2251
2252config MIPS_MT_FPAFF
2253	bool "Dynamic FPU affinity for FP-intensive threads"
2254	default y
2255	depends on MIPS_MT_SMP
2256
2257config MIPSR2_TO_R6_EMULATOR
2258	bool "MIPS R2-to-R6 emulator"
2259	depends on CPU_MIPSR6
2260	depends on MIPS_FP_SUPPORT
2261	default y
2262	help
2263	  Choose this option if you want to run non-R6 MIPS userland code.
2264	  Even if you say 'Y' here, the emulator will still be disabled by
2265	  default. You can enable it using the 'mipsr2emu' kernel option.
2266	  The only reason this is a build-time option is to save ~14K from the
2267	  final kernel image.
2268
2269config SYS_SUPPORTS_VPE_LOADER
2270	bool
2271	depends on SYS_SUPPORTS_MULTITHREADING
2272	help
2273	  Indicates that the platform supports the VPE loader, and provides
2274	  physical_memsize.
2275
2276config MIPS_VPE_LOADER
2277	bool "VPE loader support."
2278	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2279	select CPU_MIPSR2_IRQ_VI
2280	select CPU_MIPSR2_IRQ_EI
2281	select MIPS_MT
2282	help
2283	  Includes a loader for loading an elf relocatable object
2284	  onto another VPE and running it.
2285
2286config MIPS_VPE_LOADER_MT
2287	bool
2288	default "y"
2289	depends on MIPS_VPE_LOADER
2290
2291config MIPS_VPE_LOADER_TOM
2292	bool "Load VPE program into memory hidden from linux"
2293	depends on MIPS_VPE_LOADER
2294	default y
2295	help
2296	  The loader can use memory that is present but has been hidden from
2297	  Linux using the kernel command line option "mem=xxMB". It's up to
2298	  you to ensure the amount you put in the option and the space your
2299	  program requires is less or equal to the amount physically present.
2300
2301config MIPS_VPE_APSP_API
2302	bool "Enable support for AP/SP API (RTLX)"
2303	depends on MIPS_VPE_LOADER
2304
2305config MIPS_VPE_APSP_API_MT
2306	bool
2307	default "y"
2308	depends on MIPS_VPE_APSP_API
2309
2310config MIPS_CPS
2311	bool "MIPS Coherent Processing System support"
2312	depends on SYS_SUPPORTS_MIPS_CPS
2313	select MIPS_CM
2314	select MIPS_CPS_PM if HOTPLUG_CPU
2315	select SMP
2316	select HOTPLUG_SMT if HOTPLUG_PARALLEL
2317	select HOTPLUG_CORE_SYNC_DEAD if HOTPLUG_CPU
2318	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2319	select SYS_SUPPORTS_HOTPLUG_CPU
2320	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2321	select SYS_SUPPORTS_SMP
2322	select WEAK_ORDERING
2323	select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
2324	help
2325	  Select this if you wish to run an SMP kernel across multiple cores
2326	  within a MIPS Coherent Processing System. When this option is
2327	  enabled the kernel will probe for other cores and boot them with
2328	  no external assistance. It is safe to enable this when hardware
2329	  support is unavailable.
2330
2331config MIPS_CPS_PM
2332	depends on MIPS_CPS
2333	bool
2334
2335config MIPS_CM
2336	bool
2337	select MIPS_CPC
2338
2339config MIPS_CPC
2340	bool
2341
2342config SB1_PASS_2_WORKAROUNDS
2343	bool
2344	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2345	default y
2346
2347config SB1_PASS_2_1_WORKAROUNDS
2348	bool
2349	depends on CPU_SB1 && CPU_SB1_PASS_2
2350	default y
2351
2352choice
2353	prompt "SmartMIPS or microMIPS ASE support"
2354
2355config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2356	bool "None"
2357	help
2358	  Select this if you want neither microMIPS nor SmartMIPS support
2359
2360config CPU_HAS_SMARTMIPS
2361	depends on SYS_SUPPORTS_SMARTMIPS
2362	bool "SmartMIPS"
2363	help
2364	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2365	  increased security at both hardware and software level for
2366	  smartcards.  Enabling this option will allow proper use of the
2367	  SmartMIPS instructions by Linux applications.  However a kernel with
2368	  this option will not work on a MIPS core without SmartMIPS core.  If
2369	  you don't know you probably don't have SmartMIPS and should say N
2370	  here.
2371
2372config CPU_MICROMIPS
2373	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2374	bool "microMIPS"
2375	help
2376	  When this option is enabled the kernel will be built using the
2377	  microMIPS ISA
2378
2379endchoice
2380
2381config CPU_HAS_MSA
2382	bool "Support for the MIPS SIMD Architecture"
2383	depends on CPU_SUPPORTS_MSA
2384	depends on MIPS_FP_SUPPORT
2385	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2386	help
2387	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2388	  and a set of SIMD instructions to operate on them. When this option
2389	  is enabled the kernel will support allocating & switching MSA
2390	  vector register contexts. If you know that your kernel will only be
2391	  running on CPUs which do not support MSA or that your userland will
2392	  not be making use of it then you may wish to say N here to reduce
2393	  the size & complexity of your kernel.
2394
2395	  If unsure, say Y.
2396
2397config CPU_HAS_WB
2398	bool
2399
2400config XKS01
2401	bool
2402
2403config CPU_HAS_DIEI
2404	depends on !CPU_DIEI_BROKEN
2405	bool
2406
2407config CPU_DIEI_BROKEN
2408	bool
2409
2410config CPU_HAS_RIXI
2411	bool
2412
2413config CPU_NO_LOAD_STORE_LR
2414	bool
2415	help
2416	  CPU lacks support for unaligned load and store instructions:
2417	  LWL, LWR, SWL, SWR (Load/store word left/right).
2418	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
2419	  systems).
2420
2421#
2422# Vectored interrupt mode is an R2 feature
2423#
2424config CPU_MIPSR2_IRQ_VI
2425	bool
2426
2427#
2428# Extended interrupt mode is an R2 feature
2429#
2430config CPU_MIPSR2_IRQ_EI
2431	bool
2432
2433config CPU_HAS_SYNC
2434	bool
2435	depends on !CPU_R3000
2436	default y
2437
2438#
2439# CPU non-features
2440#
2441
2442# Work around the "daddi" and "daddiu" CPU errata:
2443#
2444# - The `daddi' instruction fails to trap on overflow.
2445#   "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
2446#   erratum #23
2447#
2448# - The `daddiu' instruction can produce an incorrect result.
2449#   "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
2450#   erratum #41
2451#   "MIPS R4000MC Errata, Processor Revision 2.2 and 3.0", erratum
2452#   #15
2453#   "MIPS R4400PC/SC Errata, Processor Revision 1.0", erratum #7
2454#   "MIPS R4400MC Errata, Processor Revision 1.0", erratum #5
2455config CPU_DADDI_WORKAROUNDS
2456	bool
2457
2458# Work around certain R4000 CPU errata (as implemented by GCC):
2459#
2460# - A double-word or a variable shift may give an incorrect result
2461#   if executed immediately after starting an integer division:
2462#   "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
2463#   erratum #28
2464#   "MIPS R4000MC Errata, Processor Revision 2.2 and 3.0", erratum
2465#   #19
2466#
2467# - A double-word or a variable shift may give an incorrect result
2468#   if executed while an integer multiplication is in progress:
2469#   "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
2470#   errata #16 & #28
2471#
2472# - An integer division may give an incorrect result if started in
2473#   a delay slot of a taken branch or a jump:
2474#   "MIPS R4000PC/SC Errata, Processor Revision 2.2 and 3.0",
2475#   erratum #52
2476config CPU_R4000_WORKAROUNDS
2477	bool
2478	select CPU_R4400_WORKAROUNDS
2479
2480# Work around certain R4400 CPU errata (as implemented by GCC):
2481#
2482# - A double-word or a variable shift may give an incorrect result
2483#   if executed immediately after starting an integer division:
2484#   "MIPS R4400MC Errata, Processor Revision 1.0", erratum #10
2485#   "MIPS R4400MC Errata, Processor Revision 2.0 & 3.0", erratum #4
2486config CPU_R4400_WORKAROUNDS
2487	bool
2488
2489config CPU_R4X00_BUGS64
2490	bool
2491	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)
2492
2493config MIPS_ASID_SHIFT
2494	int
2495	default 6 if CPU_R3000
2496	default 0
2497
2498config MIPS_ASID_BITS
2499	int
2500	default 0 if MIPS_ASID_BITS_VARIABLE
2501	default 6 if CPU_R3000
2502	default 8
2503
2504config MIPS_ASID_BITS_VARIABLE
2505	bool
2506
2507# R4600 erratum.  Due to the lack of errata information the exact
2508# technical details aren't known.  I've experimentally found that disabling
2509# interrupts during indexed I-cache flushes seems to be sufficient to deal
2510# with the issue.
2511config WAR_R4600_V1_INDEX_ICACHEOP
2512	bool
2513
2514# Pleasures of the R4600 V1.x.  Cite from the IDT R4600 V1.7 errata:
2515#
2516#  18. The CACHE instructions Hit_Writeback_Invalidate_D, Hit_Writeback_D,
2517#      Hit_Invalidate_D and Create_Dirty_Excl_D should only be
2518#      executed if there is no other dcache activity. If the dcache is
2519#      accessed for another instruction immediately preceding when these
2520#      cache instructions are executing, it is possible that the dcache
2521#      tag match outputs used by these cache instructions will be
2522#      incorrect. These cache instructions should be preceded by at least
2523#      four instructions that are not any kind of load or store
2524#      instruction.
2525#
2526#      This is not allowed:    lw
2527#                              nop
2528#                              nop
2529#                              nop
2530#                              cache       Hit_Writeback_Invalidate_D
2531#
2532#      This is allowed:        lw
2533#                              nop
2534#                              nop
2535#                              nop
2536#                              nop
2537#                              cache       Hit_Writeback_Invalidate_D
2538config WAR_R4600_V1_HIT_CACHEOP
2539	bool
2540
2541# Writeback and invalidate the primary cache dcache before DMA.
2542#
2543# R4600 v2.0 bug: "The CACHE instructions Hit_Writeback_Inv_D,
2544# Hit_Writeback_D, Hit_Invalidate_D and Create_Dirty_Exclusive_D will only
2545# operate correctly if the internal data cache refill buffer is empty.  These
2546# CACHE instructions should be separated from any potential data cache miss
2547# by a load instruction to an uncached address to empty the response buffer."
2548# (Revision 2.0 device errata from IDT available on https://www.idt.com/
2549# in .pdf format.)
2550config WAR_R4600_V2_HIT_CACHEOP
2551	bool
2552
2553# From TX49/H2 manual: "If the instruction (i.e. CACHE) is issued for
2554# the line which this instruction itself exists, the following
2555# operation is not guaranteed."
2556#
2557# Workaround: do two phase flushing for Index_Invalidate_I
2558config WAR_TX49XX_ICACHE_INDEX_INV
2559	bool
2560
2561# The RM7000 processors and the E9000 cores have a bug (though PMC-Sierra
2562# opposes it being called that) where invalid instructions in the same
2563# I-cache line worth of instructions being fetched may case spurious
2564# exceptions.
2565config WAR_ICACHE_REFILLS
2566	bool
2567
2568# On the R10000 up to version 2.6 (not sure about 2.7) there is a bug that
2569# may cause ll / sc and lld / scd sequences to execute non-atomically.
2570config WAR_R10000_LLSC
2571	bool
2572
2573# 34K core erratum: "Problems Executing the TLBR Instruction"
2574config WAR_MIPS34K_MISSED_ITLB
2575	bool
2576
2577#
2578# - Highmem only makes sense for the 32-bit kernel.
2579# - The current highmem code will only work properly on physically indexed
2580#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2581#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2582#   moment we protect the user and offer the highmem option only on machines
2583#   where it's known to be safe.  This will not offer highmem on a few systems
2584#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2585#   indexed CPUs but we're playing safe.
2586# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2587#   know they might have memory configurations that could make use of highmem
2588#   support.
2589#
2590config HIGHMEM
2591	bool "High Memory Support"
2592	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2593	select KMAP_LOCAL
2594
2595config CPU_SUPPORTS_HIGHMEM
2596	bool
2597
2598config SYS_SUPPORTS_HIGHMEM
2599	bool
2600
2601config SYS_SUPPORTS_SMARTMIPS
2602	bool
2603
2604config SYS_SUPPORTS_MICROMIPS
2605	bool
2606
2607config SYS_SUPPORTS_MIPS16
2608	bool
2609	help
2610	  This option must be set if a kernel might be executed on a MIPS16-
2611	  enabled CPU even if MIPS16 is not actually being used.  In other
2612	  words, it makes the kernel MIPS16-tolerant.
2613
2614config CPU_SUPPORTS_MSA
2615	bool
2616
2617config ARCH_FLATMEM_ENABLE
2618	def_bool y
2619	depends on !NUMA && !CPU_LOONGSON2EF
2620
2621config ARCH_SPARSEMEM_ENABLE
2622	bool
2623
2624config NUMA
2625	bool "NUMA Support"
2626	depends on SYS_SUPPORTS_NUMA
2627	select SMP
2628	select HAVE_SETUP_PER_CPU_AREA
2629	select NEED_PER_CPU_EMBED_FIRST_CHUNK
2630	help
2631	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2632	  Access).  This option improves performance on systems with more
2633	  than two nodes; on two node systems it is generally better to
2634	  leave it disabled; on single node systems leave this option
2635	  disabled.
2636
2637config SYS_SUPPORTS_NUMA
2638	bool
2639
2640config RELOCATABLE
2641	bool "Relocatable kernel"
2642	depends on SYS_SUPPORTS_RELOCATABLE
2643	depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \
2644		   CPU_MIPS32_R5 || CPU_MIPS64_R5 || \
2645		   CPU_MIPS32_R6 || CPU_MIPS64_R6 || \
2646		   CPU_P5600 || CAVIUM_OCTEON_SOC || \
2647		   CPU_LOONGSON64
2648	select ARCH_VMLINUX_NEEDS_RELOCS
2649	help
2650	  This builds a kernel image that retains relocation information
2651	  so it can be loaded someplace besides the default 1MB.
2652	  The relocations make the kernel binary about 15% larger,
2653	  but are discarded at runtime
2654
2655config RELOCATION_TABLE_SIZE
2656	hex "Relocation table size"
2657	depends on RELOCATABLE
2658	range 0x0 0x01000000
2659	default "0x00200000" if CPU_LOONGSON64
2660	default "0x00100000"
2661	help
2662	  A table of relocation data will be appended to the kernel binary
2663	  and parsed at boot to fix up the relocated kernel.
2664
2665	  This option allows the amount of space reserved for the table to be
2666	  adjusted, although the default of 1Mb should be ok in most cases.
2667
2668	  The build will fail and a valid size suggested if this is too small.
2669
2670	  If unsure, leave at the default value.
2671
2672config RANDOMIZE_BASE
2673	bool "Randomize the address of the kernel image"
2674	depends on RELOCATABLE
2675	help
2676	  Randomizes the physical and virtual address at which the
2677	  kernel image is loaded, as a security feature that
2678	  deters exploit attempts relying on knowledge of the location
2679	  of kernel internals.
2680
2681	  Entropy is generated using any coprocessor 0 registers available.
2682
2683	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2684
2685	  If unsure, say N.
2686
2687config RANDOMIZE_BASE_MAX_OFFSET
2688	hex "Maximum kASLR offset" if EXPERT
2689	depends on RANDOMIZE_BASE
2690	range 0x0 0x40000000 if EVA || 64BIT
2691	range 0x0 0x08000000
2692	default "0x01000000"
2693	help
2694	  When kASLR is active, this provides the maximum offset that will
2695	  be applied to the kernel image. It should be set according to the
2696	  amount of physical RAM available in the target system minus
2697	  PHYSICAL_START and must be a power of 2.
2698
2699	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2700	  EVA or 64-bit. The default is 16Mb.
2701
2702config NODES_SHIFT
2703	int
2704	default "6"
2705	depends on NUMA
2706
2707config HW_PERF_EVENTS
2708	bool "Enable hardware performance counter support for perf events"
2709	depends on PERF_EVENTS && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_LOONGSON64)
2710	default y
2711	help
2712	  Enable hardware performance counter support for perf events. If
2713	  disabled, perf events will use software events only.
2714
2715config DMI
2716	bool "Enable DMI scanning"
2717	depends on MACH_LOONGSON64
2718	select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
2719	default y
2720	help
2721	  Enabled scanning of DMI to identify machine quirks. Say Y
2722	  here unless you have verified that your setup is not
2723	  affected by entries in the DMI blacklist. Required by PNP
2724	  BIOS code.
2725
2726config SMP
2727	bool "Multi-Processing support"
2728	depends on SYS_SUPPORTS_SMP
2729	help
2730	  This enables support for systems with more than one CPU. If you have
2731	  a system with only one CPU, say N. If you have a system with more
2732	  than one CPU, say Y.
2733
2734	  If you say N here, the kernel will run on uni- and multiprocessor
2735	  machines, but will use only one CPU of a multiprocessor machine. If
2736	  you say Y here, the kernel will run on many, but not all,
2737	  uniprocessor machines. On a uniprocessor machine, the kernel
2738	  will run faster if you say N here.
2739
2740	  People using multiprocessor machines who say Y here should also say
2741	  Y to "Enhanced Real Time Clock Support", below.
2742
2743	  See also the SMP-HOWTO available at
2744	  <https://www.tldp.org/docs.html#howto>.
2745
2746	  If you don't know what to do here, say N.
2747
2748config HOTPLUG_CPU
2749	bool "Support for hot-pluggable CPUs"
2750	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2751	help
2752	  Say Y here to allow turning CPUs off and on. CPUs can be
2753	  controlled through /sys/devices/system/cpu.
2754	  (Note: power management support will enable this option
2755	    automatically on SMP systems. )
2756	  Say N if you want to disable CPU hotplug.
2757
2758config SMP_UP
2759	bool
2760
2761config SYS_SUPPORTS_MIPS_CPS
2762	bool
2763
2764config SYS_SUPPORTS_SMP
2765	bool
2766
2767config NR_CPUS_DEFAULT_4
2768	bool
2769
2770config NR_CPUS_DEFAULT_8
2771	bool
2772
2773config NR_CPUS_DEFAULT_16
2774	bool
2775
2776config NR_CPUS_DEFAULT_32
2777	bool
2778
2779config NR_CPUS_DEFAULT_64
2780	bool
2781
2782config NR_CPUS
2783	int "Maximum number of CPUs (2-256)"
2784	range 2 256
2785	depends on SMP
2786	default "4" if NR_CPUS_DEFAULT_4
2787	default "8" if NR_CPUS_DEFAULT_8
2788	default "16" if NR_CPUS_DEFAULT_16
2789	default "32" if NR_CPUS_DEFAULT_32
2790	default "64" if NR_CPUS_DEFAULT_64
2791	help
2792	  This allows you to specify the maximum number of CPUs which this
2793	  kernel will support.  The maximum supported value is 32 for 32-bit
2794	  kernel and 64 for 64-bit kernels; the minimum value which makes
2795	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2796	  and 2 for all others.
2797
2798	  This is purely to save memory - each supported CPU adds
2799	  approximately eight kilobytes to the kernel image.  For best
2800	  performance should round up your number of processors to the next
2801	  power of two.
2802
2803config MIPS_PERF_SHARED_TC_COUNTERS
2804	bool
2805
2806config MIPS_NR_CPU_NR_MAP_1024
2807	bool
2808
2809config MIPS_NR_CPU_NR_MAP
2810	int
2811	depends on SMP
2812	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2813	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2814
2815#
2816# Timer Interrupt Frequency Configuration
2817#
2818
2819choice
2820	prompt "Timer frequency"
2821	default HZ_250
2822	help
2823	  Allows the configuration of the timer frequency.
2824
2825	config HZ_24
2826		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2827
2828	config HZ_48
2829		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2830
2831	config HZ_100
2832		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2833
2834	config HZ_128
2835		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2836
2837	config HZ_250
2838		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2839
2840	config HZ_256
2841		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2842
2843	config HZ_1000
2844		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2845
2846	config HZ_1024
2847		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2848
2849endchoice
2850
2851config SYS_SUPPORTS_24HZ
2852	bool
2853
2854config SYS_SUPPORTS_48HZ
2855	bool
2856
2857config SYS_SUPPORTS_100HZ
2858	bool
2859
2860config SYS_SUPPORTS_128HZ
2861	bool
2862
2863config SYS_SUPPORTS_250HZ
2864	bool
2865
2866config SYS_SUPPORTS_256HZ
2867	bool
2868
2869config SYS_SUPPORTS_1000HZ
2870	bool
2871
2872config SYS_SUPPORTS_1024HZ
2873	bool
2874
2875config SYS_SUPPORTS_ARBIT_HZ
2876	bool
2877	default y if !SYS_SUPPORTS_24HZ && \
2878		     !SYS_SUPPORTS_48HZ && \
2879		     !SYS_SUPPORTS_100HZ && \
2880		     !SYS_SUPPORTS_128HZ && \
2881		     !SYS_SUPPORTS_250HZ && \
2882		     !SYS_SUPPORTS_256HZ && \
2883		     !SYS_SUPPORTS_1000HZ && \
2884		     !SYS_SUPPORTS_1024HZ
2885
2886config HZ
2887	int
2888	default 24 if HZ_24
2889	default 48 if HZ_48
2890	default 100 if HZ_100
2891	default 128 if HZ_128
2892	default 250 if HZ_250
2893	default 256 if HZ_256
2894	default 1000 if HZ_1000
2895	default 1024 if HZ_1024
2896
2897config SCHED_HRTICK
2898	def_bool HIGH_RES_TIMERS
2899
2900config ARCH_SUPPORTS_KEXEC
2901	def_bool y
2902
2903config ARCH_SUPPORTS_CRASH_DUMP
2904	def_bool y
2905
2906config ARCH_DEFAULT_CRASH_DUMP
2907	def_bool y
2908
2909config PHYSICAL_START
2910	hex "Physical address where the kernel is loaded"
2911	default "0xffffffff84000000"
2912	depends on CRASH_DUMP
2913	help
2914	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
2915	  If you plan to use kernel for capturing the crash dump change
2916	  this value to start of the reserved region (the "X" value as
2917	  specified in the "crashkernel=YM@XM" command line boot parameter
2918	  passed to the panic-ed kernel).
2919
2920config MIPS_O32_FP64_SUPPORT
2921	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
2922	depends on 32BIT || MIPS32_O32
2923	help
2924	  When this is enabled, the kernel will support use of 64-bit floating
2925	  point registers with binaries using the O32 ABI along with the
2926	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
2927	  32-bit MIPS systems this support is at the cost of increasing the
2928	  size and complexity of the compiled FPU emulator. Thus if you are
2929	  running a MIPS32 system and know that none of your userland binaries
2930	  will require 64-bit floating point, you may wish to reduce the size
2931	  of your kernel & potentially improve FP emulation performance by
2932	  saying N here.
2933
2934	  Although binutils currently supports use of this flag the details
2935	  concerning its effect upon the O32 ABI in userland are still being
2936	  worked on. In order to avoid userland becoming dependent upon current
2937	  behaviour before the details have been finalised, this option should
2938	  be considered experimental and only enabled by those working upon
2939	  said details.
2940
2941	  If unsure, say N.
2942
2943config USE_OF
2944	bool
2945	select OF
2946	select OF_EARLY_FLATTREE
2947	select IRQ_DOMAIN
2948
2949config UHI_BOOT
2950	bool
2951
2952config BUILTIN_DTB
2953	bool
2954
2955choice
2956	prompt "Kernel appended dtb support"
2957	depends on USE_OF
2958	default MIPS_NO_APPENDED_DTB
2959
2960	config MIPS_NO_APPENDED_DTB
2961		bool "None"
2962		help
2963		  Do not enable appended dtb support.
2964
2965	config MIPS_ELF_APPENDED_DTB
2966		bool "vmlinux"
2967		help
2968		  With this option, the boot code will look for a device tree binary
2969		  DTB) included in the vmlinux ELF section .appended_dtb. By default
2970		  it is empty and the DTB can be appended using binutils command
2971		  objcopy:
2972
2973		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
2974
2975		  This is meant as a backward compatibility convenience for those
2976		  systems with a bootloader that can't be upgraded to accommodate
2977		  the documented boot protocol using a device tree.
2978
2979	config MIPS_RAW_APPENDED_DTB
2980		bool "vmlinux.bin or vmlinuz.bin"
2981		help
2982		  With this option, the boot code will look for a device tree binary
2983		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
2984		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
2985
2986		  This is meant as a backward compatibility convenience for those
2987		  systems with a bootloader that can't be upgraded to accommodate
2988		  the documented boot protocol using a device tree.
2989
2990		  Beware that there is very little in terms of protection against
2991		  this option being confused by leftover garbage in memory that might
2992		  look like a DTB header after a reboot if no actual DTB is appended
2993		  to vmlinux.bin.  Do not leave this option active in a production kernel
2994		  if you don't intend to always append a DTB.
2995endchoice
2996
2997choice
2998	prompt "Kernel command line type"
2999	depends on !CMDLINE_OVERRIDE
3000	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3001					 !MACH_LOONGSON64 && !MIPS_MALTA && \
3002					 !CAVIUM_OCTEON_SOC
3003	default MIPS_CMDLINE_FROM_BOOTLOADER
3004
3005	config MIPS_CMDLINE_FROM_DTB
3006		depends on USE_OF
3007		bool "Dtb kernel arguments if available"
3008
3009	config MIPS_CMDLINE_DTB_EXTEND
3010		depends on USE_OF
3011		bool "Extend dtb kernel arguments with bootloader arguments"
3012
3013	config MIPS_CMDLINE_FROM_BOOTLOADER
3014		bool "Bootloader kernel arguments if available"
3015
3016	config MIPS_CMDLINE_BUILTIN_EXTEND
3017		depends on CMDLINE_BOOL
3018		bool "Extend builtin kernel arguments with bootloader arguments"
3019endchoice
3020
3021endmenu
3022
3023config LOCKDEP_SUPPORT
3024	bool
3025	default y
3026
3027config STACKTRACE_SUPPORT
3028	bool
3029	default y
3030
3031config PGTABLE_LEVELS
3032	int
3033	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3034	default 3 if 64BIT && (!PAGE_SIZE_64KB || MIPS_VA_BITS_48)
3035	default 2
3036
3037config MIPS_AUTO_PFN_OFFSET
3038	bool
3039
3040menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3041
3042config PCI_DRIVERS_GENERIC
3043	select PCI_DOMAINS_GENERIC if PCI
3044	bool
3045
3046config PCI_DRIVERS_LEGACY
3047	def_bool !PCI_DRIVERS_GENERIC
3048	select NO_GENERIC_PCI_IOPORT_MAP
3049	select PCI_DOMAINS if PCI
3050
3051#
3052# ISA support is now enabled via select.  Too many systems still have the one
3053# or other ISA chip on the board that users don't know about so don't expect
3054# users to choose the right thing ...
3055#
3056config ISA
3057	bool
3058
3059config TC
3060	bool "TURBOchannel support"
3061	depends on MACH_DECSTATION
3062	help
3063	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3064	  processors.  TURBOchannel programming specifications are available
3065	  at:
3066	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3067	  and:
3068	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3069	  Linux driver support status is documented at:
3070	  <http://www.linux-mips.org/wiki/DECstation>
3071
3072config MMU
3073	bool
3074	default y
3075
3076config ARCH_MMAP_RND_BITS_MIN
3077	default 12 if 64BIT
3078	default 8
3079
3080config ARCH_MMAP_RND_BITS_MAX
3081	default 18 if 64BIT
3082	default 15
3083
3084config ARCH_MMAP_RND_COMPAT_BITS_MIN
3085	default 8
3086
3087config ARCH_MMAP_RND_COMPAT_BITS_MAX
3088	default 15
3089
3090config I8253
3091	bool
3092	select CLKSRC_I8253
3093	select CLKEVT_I8253
3094	select MIPS_EXTERNAL_TIMER
3095endmenu
3096
3097config TRAD_SIGNALS
3098	bool
3099
3100config MIPS32_COMPAT
3101	bool
3102
3103config COMPAT
3104	bool
3105
3106config MIPS32_O32
3107	bool "Kernel support for o32 binaries"
3108	depends on 64BIT
3109	select ARCH_WANT_OLD_COMPAT_IPC
3110	select COMPAT
3111	select MIPS32_COMPAT
3112	help
3113	  Select this option if you want to run o32 binaries.  These are pure
3114	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3115	  existing binaries are in this format.
3116
3117	  If unsure, say Y.
3118
3119config MIPS32_N32
3120	bool "Kernel support for n32 binaries"
3121	depends on 64BIT
3122	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3123	select COMPAT
3124	select MIPS32_COMPAT
3125	help
3126	  Select this option if you want to run n32 binaries.  These are
3127	  64-bit binaries using 32-bit quantities for addressing and certain
3128	  data that would normally be 64-bit.  They are used in special
3129	  cases.
3130
3131	  If unsure, say N.
3132
3133config CC_HAS_MNO_BRANCH_LIKELY
3134	def_bool y
3135	depends on $(cc-option,-mno-branch-likely)
3136
3137# https://github.com/llvm/llvm-project/issues/61045
3138config CC_HAS_BROKEN_INLINE_COMPAT_BRANCH
3139	def_bool y if CC_IS_CLANG
3140
3141menu "Power management options"
3142
3143config ARCH_HIBERNATION_POSSIBLE
3144	def_bool y
3145	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3146
3147config ARCH_SUSPEND_POSSIBLE
3148	def_bool y
3149	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3150
3151source "kernel/power/Kconfig"
3152
3153endmenu
3154
3155config MIPS_EXTERNAL_TIMER
3156	bool
3157
3158menu "CPU Power Management"
3159
3160if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3161source "drivers/cpufreq/Kconfig"
3162endif # CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3163
3164source "drivers/cpuidle/Kconfig"
3165
3166endmenu
3167
3168source "arch/mips/kvm/Kconfig"
3169
3170source "arch/mips/vdso/Kconfig"
3171