xref: /linux/arch/mips/Kconfig (revision 9052e9c95d908d6c3d7570aadc8898e1d871c8bb)
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_DEBUG_VIRTUAL if !64BIT
8	select ARCH_HAS_FORTIFY_SOURCE
9	select ARCH_HAS_KCOV
10	select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE if !EVA
11	select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI)
12	select ARCH_HAS_STRNCPY_FROM_USER
13	select ARCH_HAS_STRNLEN_USER
14	select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
15	select ARCH_HAS_UBSAN_SANITIZE_ALL
16	select ARCH_HAS_GCOV_PROFILE_ALL
17	select ARCH_KEEP_MEMBLOCK
18	select ARCH_SUPPORTS_UPROBES
19	select ARCH_USE_BUILTIN_BSWAP
20	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
21	select ARCH_USE_MEMTEST
22	select ARCH_USE_QUEUED_RWLOCKS
23	select ARCH_USE_QUEUED_SPINLOCKS
24	select ARCH_SUPPORTS_HUGETLBFS if CPU_SUPPORTS_HUGEPAGES
25	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
26	select ARCH_WANT_IPC_PARSE_VERSION
27	select ARCH_WANT_LD_ORPHAN_WARN
28	select BUILDTIME_TABLE_SORT
29	select CLONE_BACKWARDS
30	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
31	select CPU_PM if CPU_IDLE
32	select GENERIC_ATOMIC64 if !64BIT
33	select GENERIC_CMOS_UPDATE
34	select GENERIC_CPU_AUTOPROBE
35	select GENERIC_FIND_FIRST_BIT
36	select GENERIC_GETTIMEOFDAY
37	select GENERIC_IOMAP
38	select GENERIC_IRQ_PROBE
39	select GENERIC_IRQ_SHOW
40	select GENERIC_ISA_DMA if EISA
41	select GENERIC_LIB_ASHLDI3
42	select GENERIC_LIB_ASHRDI3
43	select GENERIC_LIB_CMPDI2
44	select GENERIC_LIB_LSHRDI3
45	select GENERIC_LIB_UCMPDI2
46	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
47	select GENERIC_SMP_IDLE_THREAD
48	select GENERIC_TIME_VSYSCALL
49	select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
50	select HANDLE_DOMAIN_IRQ
51	select HAVE_ARCH_COMPILER_H
52	select HAVE_ARCH_JUMP_LABEL
53	select HAVE_ARCH_KGDB if MIPS_FP_SUPPORT
54	select HAVE_ARCH_MMAP_RND_BITS if MMU
55	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
56	select HAVE_ARCH_SECCOMP_FILTER
57	select HAVE_ARCH_TRACEHOOK
58	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
59	select HAVE_ASM_MODVERSIONS
60	select HAVE_CBPF_JIT if !64BIT && !CPU_MICROMIPS
61	select HAVE_CONTEXT_TRACKING
62	select HAVE_TIF_NOHZ
63	select HAVE_C_RECORDMCOUNT
64	select HAVE_DEBUG_KMEMLEAK
65	select HAVE_DEBUG_STACKOVERFLOW
66	select HAVE_DMA_CONTIGUOUS
67	select HAVE_DYNAMIC_FTRACE
68	select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2
69	select HAVE_EXIT_THREAD
70	select HAVE_FAST_GUP
71	select HAVE_FTRACE_MCOUNT_RECORD
72	select HAVE_FUNCTION_GRAPH_TRACER
73	select HAVE_FUNCTION_TRACER
74	select HAVE_GCC_PLUGINS
75	select HAVE_GENERIC_VDSO
76	select HAVE_IOREMAP_PROT
77	select HAVE_IRQ_EXIT_ON_IRQ_STACK
78	select HAVE_IRQ_TIME_ACCOUNTING
79	select HAVE_KPROBES
80	select HAVE_KRETPROBES
81	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
82	select HAVE_MOD_ARCH_SPECIFIC
83	select HAVE_NMI
84	select HAVE_PERF_EVENTS
85	select HAVE_PERF_REGS
86	select HAVE_PERF_USER_STACK_DUMP
87	select HAVE_REGS_AND_STACK_ACCESS_API
88	select HAVE_RSEQ
89	select HAVE_SPARSE_SYSCALL_NR
90	select HAVE_STACKPROTECTOR
91	select HAVE_SYSCALL_TRACEPOINTS
92	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
93	select IRQ_FORCED_THREADING
94	select ISA if EISA
95	select MODULES_USE_ELF_REL if MODULES
96	select MODULES_USE_ELF_RELA if MODULES && 64BIT
97	select PERF_USE_VMALLOC
98	select PCI_MSI_ARCH_FALLBACKS if PCI_MSI
99	select RTC_LIB
100	select SYSCTL_EXCEPTION_TRACE
101	select TRACE_IRQFLAGS_SUPPORT
102	select VIRT_TO_BUS
103	select ARCH_HAS_ELFCORE_COMPAT
104
105config MIPS_FIXUP_BIGPHYS_ADDR
106	bool
107
108config MIPS_GENERIC
109	bool
110
111config MACH_INGENIC
112	bool
113	select SYS_SUPPORTS_32BIT_KERNEL
114	select SYS_SUPPORTS_LITTLE_ENDIAN
115	select SYS_SUPPORTS_ZBOOT
116	select DMA_NONCOHERENT
117	select ARCH_HAS_SYNC_DMA_FOR_CPU
118	select IRQ_MIPS_CPU
119	select PINCTRL
120	select GPIOLIB
121	select COMMON_CLK
122	select GENERIC_IRQ_CHIP
123	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
124	select USE_OF
125	select CPU_SUPPORTS_CPUFREQ
126	select MIPS_EXTERNAL_TIMER
127
128menu "Machine selection"
129
130choice
131	prompt "System type"
132	default MIPS_GENERIC_KERNEL
133
134config MIPS_GENERIC_KERNEL
135	bool "Generic board-agnostic MIPS kernel"
136	select ARCH_HAS_SETUP_DMA_OPS
137	select MIPS_GENERIC
138	select BOOT_RAW
139	select BUILTIN_DTB
140	select CEVT_R4K
141	select CLKSRC_MIPS_GIC
142	select COMMON_CLK
143	select CPU_MIPSR2_IRQ_EI
144	select CPU_MIPSR2_IRQ_VI
145	select CSRC_R4K
146	select DMA_NONCOHERENT
147	select HAVE_PCI
148	select IRQ_MIPS_CPU
149	select MIPS_AUTO_PFN_OFFSET
150	select MIPS_CPU_SCACHE
151	select MIPS_GIC
152	select MIPS_L1_CACHE_SHIFT_7
153	select NO_EXCEPT_FILL
154	select PCI_DRIVERS_GENERIC
155	select SMP_UP if SMP
156	select SWAP_IO_SPACE
157	select SYS_HAS_CPU_MIPS32_R1
158	select SYS_HAS_CPU_MIPS32_R2
159	select SYS_HAS_CPU_MIPS32_R6
160	select SYS_HAS_CPU_MIPS64_R1
161	select SYS_HAS_CPU_MIPS64_R2
162	select SYS_HAS_CPU_MIPS64_R6
163	select SYS_SUPPORTS_32BIT_KERNEL
164	select SYS_SUPPORTS_64BIT_KERNEL
165	select SYS_SUPPORTS_BIG_ENDIAN
166	select SYS_SUPPORTS_HIGHMEM
167	select SYS_SUPPORTS_LITTLE_ENDIAN
168	select SYS_SUPPORTS_MICROMIPS
169	select SYS_SUPPORTS_MIPS16
170	select SYS_SUPPORTS_MIPS_CPS
171	select SYS_SUPPORTS_MULTITHREADING
172	select SYS_SUPPORTS_RELOCATABLE
173	select SYS_SUPPORTS_SMARTMIPS
174	select SYS_SUPPORTS_ZBOOT
175	select UHI_BOOT
176	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
177	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
178	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
179	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
180	select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
181	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
182	select USE_OF
183	help
184	  Select this to build a kernel which aims to support multiple boards,
185	  generally using a flattened device tree passed from the bootloader
186	  using the boot protocol defined in the UHI (Unified Hosting
187	  Interface) specification.
188
189config MIPS_ALCHEMY
190	bool "Alchemy processor based machines"
191	select PHYS_ADDR_T_64BIT
192	select CEVT_R4K
193	select CSRC_R4K
194	select IRQ_MIPS_CPU
195	select DMA_NONCOHERENT		# Au1000,1500,1100 aren't, rest is
196	select MIPS_FIXUP_BIGPHYS_ADDR if PCI
197	select SYS_HAS_CPU_MIPS32_R1
198	select SYS_SUPPORTS_32BIT_KERNEL
199	select SYS_SUPPORTS_APM_EMULATION
200	select GPIOLIB
201	select SYS_SUPPORTS_ZBOOT
202	select COMMON_CLK
203
204config AR7
205	bool "Texas Instruments AR7"
206	select BOOT_ELF32
207	select COMMON_CLK
208	select DMA_NONCOHERENT
209	select CEVT_R4K
210	select CSRC_R4K
211	select IRQ_MIPS_CPU
212	select NO_EXCEPT_FILL
213	select SWAP_IO_SPACE
214	select SYS_HAS_CPU_MIPS32_R1
215	select SYS_HAS_EARLY_PRINTK
216	select SYS_SUPPORTS_32BIT_KERNEL
217	select SYS_SUPPORTS_LITTLE_ENDIAN
218	select SYS_SUPPORTS_MIPS16
219	select SYS_SUPPORTS_ZBOOT_UART16550
220	select GPIOLIB
221	select VLYNQ
222	help
223	  Support for the Texas Instruments AR7 System-on-a-Chip
224	  family: TNETD7100, 7200 and 7300.
225
226config ATH25
227	bool "Atheros AR231x/AR531x SoC support"
228	select CEVT_R4K
229	select CSRC_R4K
230	select DMA_NONCOHERENT
231	select IRQ_MIPS_CPU
232	select IRQ_DOMAIN
233	select SYS_HAS_CPU_MIPS32_R1
234	select SYS_SUPPORTS_BIG_ENDIAN
235	select SYS_SUPPORTS_32BIT_KERNEL
236	select SYS_HAS_EARLY_PRINTK
237	help
238	  Support for Atheros AR231x and Atheros AR531x based boards
239
240config ATH79
241	bool "Atheros AR71XX/AR724X/AR913X based boards"
242	select ARCH_HAS_RESET_CONTROLLER
243	select BOOT_RAW
244	select CEVT_R4K
245	select CSRC_R4K
246	select DMA_NONCOHERENT
247	select GPIOLIB
248	select PINCTRL
249	select COMMON_CLK
250	select IRQ_MIPS_CPU
251	select SYS_HAS_CPU_MIPS32_R2
252	select SYS_HAS_EARLY_PRINTK
253	select SYS_SUPPORTS_32BIT_KERNEL
254	select SYS_SUPPORTS_BIG_ENDIAN
255	select SYS_SUPPORTS_MIPS16
256	select SYS_SUPPORTS_ZBOOT_UART_PROM
257	select USE_OF
258	select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
259	help
260	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
261
262config BMIPS_GENERIC
263	bool "Broadcom Generic BMIPS kernel"
264	select ARCH_HAS_RESET_CONTROLLER
265	select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
266	select ARCH_HAS_PHYS_TO_DMA
267	select BOOT_RAW
268	select NO_EXCEPT_FILL
269	select USE_OF
270	select CEVT_R4K
271	select CSRC_R4K
272	select SYNC_R4K
273	select COMMON_CLK
274	select BCM6345_L1_IRQ
275	select BCM7038_L1_IRQ
276	select BCM7120_L2_IRQ
277	select BRCMSTB_L2_IRQ
278	select IRQ_MIPS_CPU
279	select DMA_NONCOHERENT
280	select SYS_SUPPORTS_32BIT_KERNEL
281	select SYS_SUPPORTS_LITTLE_ENDIAN
282	select SYS_SUPPORTS_BIG_ENDIAN
283	select SYS_SUPPORTS_HIGHMEM
284	select SYS_HAS_CPU_BMIPS32_3300
285	select SYS_HAS_CPU_BMIPS4350
286	select SYS_HAS_CPU_BMIPS4380
287	select SYS_HAS_CPU_BMIPS5000
288	select SWAP_IO_SPACE
289	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
290	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
291	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
292	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
293	select HARDIRQS_SW_RESEND
294	help
295	  Build a generic DT-based kernel image that boots on select
296	  BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
297	  box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
298	  must be set appropriately for your board.
299
300config BCM47XX
301	bool "Broadcom BCM47XX based boards"
302	select BOOT_RAW
303	select CEVT_R4K
304	select CSRC_R4K
305	select DMA_NONCOHERENT
306	select HAVE_PCI
307	select IRQ_MIPS_CPU
308	select SYS_HAS_CPU_MIPS32_R1
309	select NO_EXCEPT_FILL
310	select SYS_SUPPORTS_32BIT_KERNEL
311	select SYS_SUPPORTS_LITTLE_ENDIAN
312	select SYS_SUPPORTS_MIPS16
313	select SYS_SUPPORTS_ZBOOT
314	select SYS_HAS_EARLY_PRINTK
315	select USE_GENERIC_EARLY_PRINTK_8250
316	select GPIOLIB
317	select LEDS_GPIO_REGISTER
318	select BCM47XX_NVRAM
319	select BCM47XX_SPROM
320	select BCM47XX_SSB if !BCM47XX_BCMA
321	help
322	  Support for BCM47XX based boards
323
324config BCM63XX
325	bool "Broadcom BCM63XX based boards"
326	select BOOT_RAW
327	select CEVT_R4K
328	select CSRC_R4K
329	select SYNC_R4K
330	select DMA_NONCOHERENT
331	select IRQ_MIPS_CPU
332	select SYS_SUPPORTS_32BIT_KERNEL
333	select SYS_SUPPORTS_BIG_ENDIAN
334	select SYS_HAS_EARLY_PRINTK
335	select SWAP_IO_SPACE
336	select GPIOLIB
337	select MIPS_L1_CACHE_SHIFT_4
338	select HAVE_LEGACY_CLK
339	help
340	  Support for BCM63XX based boards
341
342config MIPS_COBALT
343	bool "Cobalt Server"
344	select CEVT_R4K
345	select CSRC_R4K
346	select CEVT_GT641XX
347	select DMA_NONCOHERENT
348	select FORCE_PCI
349	select I8253
350	select I8259
351	select IRQ_MIPS_CPU
352	select IRQ_GT641XX
353	select PCI_GT64XXX_PCI0
354	select SYS_HAS_CPU_NEVADA
355	select SYS_HAS_EARLY_PRINTK
356	select SYS_SUPPORTS_32BIT_KERNEL
357	select SYS_SUPPORTS_64BIT_KERNEL
358	select SYS_SUPPORTS_LITTLE_ENDIAN
359	select USE_GENERIC_EARLY_PRINTK_8250
360
361config MACH_DECSTATION
362	bool "DECstations"
363	select BOOT_ELF32
364	select CEVT_DS1287
365	select CEVT_R4K if CPU_R4X00
366	select CSRC_IOASIC
367	select CSRC_R4K if CPU_R4X00
368	select CPU_DADDI_WORKAROUNDS if 64BIT
369	select CPU_R4000_WORKAROUNDS if 64BIT
370	select CPU_R4400_WORKAROUNDS if 64BIT
371	select DMA_NONCOHERENT
372	select NO_IOPORT_MAP
373	select IRQ_MIPS_CPU
374	select SYS_HAS_CPU_R3000
375	select SYS_HAS_CPU_R4X00
376	select SYS_SUPPORTS_32BIT_KERNEL
377	select SYS_SUPPORTS_64BIT_KERNEL
378	select SYS_SUPPORTS_LITTLE_ENDIAN
379	select SYS_SUPPORTS_128HZ
380	select SYS_SUPPORTS_256HZ
381	select SYS_SUPPORTS_1024HZ
382	select MIPS_L1_CACHE_SHIFT_4
383	help
384	  This enables support for DEC's MIPS based workstations.  For details
385	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
386	  DECstation porting pages on <http://decstation.unix-ag.org/>.
387
388	  If you have one of the following DECstation Models you definitely
389	  want to choose R4xx0 for the CPU Type:
390
391		DECstation 5000/50
392		DECstation 5000/150
393		DECstation 5000/260
394		DECsystem 5900/260
395
396	  otherwise choose R3000.
397
398config MACH_JAZZ
399	bool "Jazz family of machines"
400	select ARC_MEMORY
401	select ARC_PROMLIB
402	select ARCH_MIGHT_HAVE_PC_PARPORT
403	select ARCH_MIGHT_HAVE_PC_SERIO
404	select DMA_OPS
405	select FW_ARC
406	select FW_ARC32
407	select ARCH_MAY_HAVE_PC_FDC
408	select CEVT_R4K
409	select CSRC_R4K
410	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
411	select GENERIC_ISA_DMA
412	select HAVE_PCSPKR_PLATFORM
413	select IRQ_MIPS_CPU
414	select I8253
415	select I8259
416	select ISA
417	select SYS_HAS_CPU_R4X00
418	select SYS_SUPPORTS_32BIT_KERNEL
419	select SYS_SUPPORTS_64BIT_KERNEL
420	select SYS_SUPPORTS_100HZ
421	select SYS_SUPPORTS_LITTLE_ENDIAN
422	help
423	  This a family of machines based on the MIPS R4030 chipset which was
424	  used by several vendors to build RISC/os and Windows NT workstations.
425	  Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
426	  Olivetti M700-10 workstations.
427
428config MACH_INGENIC_SOC
429	bool "Ingenic SoC based machines"
430	select MIPS_GENERIC
431	select MACH_INGENIC
432	select SYS_SUPPORTS_ZBOOT_UART16550
433	select CPU_SUPPORTS_CPUFREQ
434	select MIPS_EXTERNAL_TIMER
435
436config LANTIQ
437	bool "Lantiq based platforms"
438	select DMA_NONCOHERENT
439	select IRQ_MIPS_CPU
440	select CEVT_R4K
441	select CSRC_R4K
442	select SYS_HAS_CPU_MIPS32_R1
443	select SYS_HAS_CPU_MIPS32_R2
444	select SYS_SUPPORTS_BIG_ENDIAN
445	select SYS_SUPPORTS_32BIT_KERNEL
446	select SYS_SUPPORTS_MIPS16
447	select SYS_SUPPORTS_MULTITHREADING
448	select SYS_SUPPORTS_VPE_LOADER
449	select SYS_HAS_EARLY_PRINTK
450	select GPIOLIB
451	select SWAP_IO_SPACE
452	select BOOT_RAW
453	select HAVE_LEGACY_CLK
454	select USE_OF
455	select PINCTRL
456	select PINCTRL_LANTIQ
457	select ARCH_HAS_RESET_CONTROLLER
458	select RESET_CONTROLLER
459
460config MACH_LOONGSON32
461	bool "Loongson 32-bit family of machines"
462	select SYS_SUPPORTS_ZBOOT
463	help
464	  This enables support for the Loongson-1 family of machines.
465
466	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
467	  the Institute of Computing Technology (ICT), Chinese Academy of
468	  Sciences (CAS).
469
470config MACH_LOONGSON2EF
471	bool "Loongson-2E/F family of machines"
472	select SYS_SUPPORTS_ZBOOT
473	help
474	  This enables the support of early Loongson-2E/F family of machines.
475
476config MACH_LOONGSON64
477	bool "Loongson 64-bit family of machines"
478	select ARCH_SPARSEMEM_ENABLE
479	select ARCH_MIGHT_HAVE_PC_PARPORT
480	select ARCH_MIGHT_HAVE_PC_SERIO
481	select GENERIC_ISA_DMA_SUPPORT_BROKEN
482	select BOOT_ELF32
483	select BOARD_SCACHE
484	select CSRC_R4K
485	select CEVT_R4K
486	select CPU_HAS_WB
487	select FORCE_PCI
488	select ISA
489	select I8259
490	select IRQ_MIPS_CPU
491	select NO_EXCEPT_FILL
492	select NR_CPUS_DEFAULT_64
493	select USE_GENERIC_EARLY_PRINTK_8250
494	select PCI_DRIVERS_GENERIC
495	select SYS_HAS_CPU_LOONGSON64
496	select SYS_HAS_EARLY_PRINTK
497	select SYS_SUPPORTS_SMP
498	select SYS_SUPPORTS_HOTPLUG_CPU
499	select SYS_SUPPORTS_NUMA
500	select SYS_SUPPORTS_64BIT_KERNEL
501	select SYS_SUPPORTS_HIGHMEM
502	select SYS_SUPPORTS_LITTLE_ENDIAN
503	select SYS_SUPPORTS_ZBOOT
504	select SYS_SUPPORTS_RELOCATABLE
505	select ZONE_DMA32
506	select COMMON_CLK
507	select USE_OF
508	select BUILTIN_DTB
509	select PCI_HOST_GENERIC
510	help
511	  This enables the support of Loongson-2/3 family of machines.
512
513	  Loongson-2 and Loongson-3 are 64-bit general-purpose processors with
514	  GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E
515	  and Loongson-2F which will be removed), developed by the Institute
516	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS).
517
518config MIPS_MALTA
519	bool "MIPS Malta board"
520	select ARCH_MAY_HAVE_PC_FDC
521	select ARCH_MIGHT_HAVE_PC_PARPORT
522	select ARCH_MIGHT_HAVE_PC_SERIO
523	select BOOT_ELF32
524	select BOOT_RAW
525	select BUILTIN_DTB
526	select CEVT_R4K
527	select CLKSRC_MIPS_GIC
528	select COMMON_CLK
529	select CSRC_R4K
530	select DMA_NONCOHERENT
531	select GENERIC_ISA_DMA
532	select HAVE_PCSPKR_PLATFORM
533	select HAVE_PCI
534	select I8253
535	select I8259
536	select IRQ_MIPS_CPU
537	select MIPS_BONITO64
538	select MIPS_CPU_SCACHE
539	select MIPS_GIC
540	select MIPS_L1_CACHE_SHIFT_6
541	select MIPS_MSC
542	select PCI_GT64XXX_PCI0
543	select SMP_UP if SMP
544	select SWAP_IO_SPACE
545	select SYS_HAS_CPU_MIPS32_R1
546	select SYS_HAS_CPU_MIPS32_R2
547	select SYS_HAS_CPU_MIPS32_R3_5
548	select SYS_HAS_CPU_MIPS32_R5
549	select SYS_HAS_CPU_MIPS32_R6
550	select SYS_HAS_CPU_MIPS64_R1
551	select SYS_HAS_CPU_MIPS64_R2
552	select SYS_HAS_CPU_MIPS64_R6
553	select SYS_HAS_CPU_NEVADA
554	select SYS_HAS_CPU_RM7000
555	select SYS_SUPPORTS_32BIT_KERNEL
556	select SYS_SUPPORTS_64BIT_KERNEL
557	select SYS_SUPPORTS_BIG_ENDIAN
558	select SYS_SUPPORTS_HIGHMEM
559	select SYS_SUPPORTS_LITTLE_ENDIAN
560	select SYS_SUPPORTS_MICROMIPS
561	select SYS_SUPPORTS_MIPS16
562	select SYS_SUPPORTS_MIPS_CMP
563	select SYS_SUPPORTS_MIPS_CPS
564	select SYS_SUPPORTS_MULTITHREADING
565	select SYS_SUPPORTS_RELOCATABLE
566	select SYS_SUPPORTS_SMARTMIPS
567	select SYS_SUPPORTS_VPE_LOADER
568	select SYS_SUPPORTS_ZBOOT
569	select USE_OF
570	select WAR_ICACHE_REFILLS
571	select ZONE_DMA32 if 64BIT
572	help
573	  This enables support for the MIPS Technologies Malta evaluation
574	  board.
575
576config MACH_PIC32
577	bool "Microchip PIC32 Family"
578	help
579	  This enables support for the Microchip PIC32 family of platforms.
580
581	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
582	  microcontrollers.
583
584config MACH_VR41XX
585	bool "NEC VR4100 series based machines"
586	select CEVT_R4K
587	select CSRC_R4K
588	select SYS_HAS_CPU_VR41XX
589	select SYS_SUPPORTS_MIPS16
590	select GPIOLIB
591
592config MACH_NINTENDO64
593	bool "Nintendo 64 console"
594	select CEVT_R4K
595	select CSRC_R4K
596	select SYS_HAS_CPU_R4300
597	select SYS_SUPPORTS_BIG_ENDIAN
598	select SYS_SUPPORTS_ZBOOT
599	select SYS_SUPPORTS_32BIT_KERNEL
600	select SYS_SUPPORTS_64BIT_KERNEL
601	select DMA_NONCOHERENT
602	select IRQ_MIPS_CPU
603
604config RALINK
605	bool "Ralink based machines"
606	select CEVT_R4K
607	select COMMON_CLK
608	select CSRC_R4K
609	select BOOT_RAW
610	select DMA_NONCOHERENT
611	select IRQ_MIPS_CPU
612	select USE_OF
613	select SYS_HAS_CPU_MIPS32_R1
614	select SYS_HAS_CPU_MIPS32_R2
615	select SYS_SUPPORTS_32BIT_KERNEL
616	select SYS_SUPPORTS_LITTLE_ENDIAN
617	select SYS_SUPPORTS_MIPS16
618	select SYS_SUPPORTS_ZBOOT
619	select SYS_HAS_EARLY_PRINTK
620	select ARCH_HAS_RESET_CONTROLLER
621	select RESET_CONTROLLER
622
623config MACH_REALTEK_RTL
624	bool "Realtek RTL838x/RTL839x based machines"
625	select MIPS_GENERIC
626	select DMA_NONCOHERENT
627	select IRQ_MIPS_CPU
628	select CSRC_R4K
629	select CEVT_R4K
630	select SYS_HAS_CPU_MIPS32_R1
631	select SYS_HAS_CPU_MIPS32_R2
632	select SYS_SUPPORTS_BIG_ENDIAN
633	select SYS_SUPPORTS_32BIT_KERNEL
634	select SYS_SUPPORTS_MIPS16
635	select SYS_SUPPORTS_MULTITHREADING
636	select SYS_SUPPORTS_VPE_LOADER
637	select SYS_HAS_EARLY_PRINTK
638	select SYS_HAS_EARLY_PRINTK_8250
639	select USE_GENERIC_EARLY_PRINTK_8250
640	select BOOT_RAW
641	select PINCTRL
642	select USE_OF
643
644config SGI_IP22
645	bool "SGI IP22 (Indy/Indigo2)"
646	select ARC_MEMORY
647	select ARC_PROMLIB
648	select FW_ARC
649	select FW_ARC32
650	select ARCH_MIGHT_HAVE_PC_SERIO
651	select BOOT_ELF32
652	select CEVT_R4K
653	select CSRC_R4K
654	select DEFAULT_SGI_PARTITION
655	select DMA_NONCOHERENT
656	select HAVE_EISA
657	select I8253
658	select I8259
659	select IP22_CPU_SCACHE
660	select IRQ_MIPS_CPU
661	select GENERIC_ISA_DMA_SUPPORT_BROKEN
662	select SGI_HAS_I8042
663	select SGI_HAS_INDYDOG
664	select SGI_HAS_HAL2
665	select SGI_HAS_SEEQ
666	select SGI_HAS_WD93
667	select SGI_HAS_ZILOG
668	select SWAP_IO_SPACE
669	select SYS_HAS_CPU_R4X00
670	select SYS_HAS_CPU_R5000
671	select SYS_HAS_EARLY_PRINTK
672	select SYS_SUPPORTS_32BIT_KERNEL
673	select SYS_SUPPORTS_64BIT_KERNEL
674	select SYS_SUPPORTS_BIG_ENDIAN
675	select WAR_R4600_V1_INDEX_ICACHEOP
676	select WAR_R4600_V1_HIT_CACHEOP
677	select WAR_R4600_V2_HIT_CACHEOP
678	select MIPS_L1_CACHE_SHIFT_7
679	help
680	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
681	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
682	  that runs on these, say Y here.
683
684config SGI_IP27
685	bool "SGI IP27 (Origin200/2000)"
686	select ARCH_HAS_PHYS_TO_DMA
687	select ARCH_SPARSEMEM_ENABLE
688	select FW_ARC
689	select FW_ARC64
690	select ARC_CMDLINE_ONLY
691	select BOOT_ELF64
692	select DEFAULT_SGI_PARTITION
693	select FORCE_PCI
694	select SYS_HAS_EARLY_PRINTK
695	select HAVE_PCI
696	select IRQ_MIPS_CPU
697	select IRQ_DOMAIN_HIERARCHY
698	select NR_CPUS_DEFAULT_64
699	select PCI_DRIVERS_GENERIC
700	select PCI_XTALK_BRIDGE
701	select SYS_HAS_CPU_R10000
702	select SYS_SUPPORTS_64BIT_KERNEL
703	select SYS_SUPPORTS_BIG_ENDIAN
704	select SYS_SUPPORTS_NUMA
705	select SYS_SUPPORTS_SMP
706	select WAR_R10000_LLSC
707	select MIPS_L1_CACHE_SHIFT_7
708	select NUMA
709	help
710	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
711	  workstations.  To compile a Linux kernel that runs on these, say Y
712	  here.
713
714config SGI_IP28
715	bool "SGI IP28 (Indigo2 R10k)"
716	select ARC_MEMORY
717	select ARC_PROMLIB
718	select FW_ARC
719	select FW_ARC64
720	select ARCH_MIGHT_HAVE_PC_SERIO
721	select BOOT_ELF64
722	select CEVT_R4K
723	select CSRC_R4K
724	select DEFAULT_SGI_PARTITION
725	select DMA_NONCOHERENT
726	select GENERIC_ISA_DMA_SUPPORT_BROKEN
727	select IRQ_MIPS_CPU
728	select HAVE_EISA
729	select I8253
730	select I8259
731	select SGI_HAS_I8042
732	select SGI_HAS_INDYDOG
733	select SGI_HAS_HAL2
734	select SGI_HAS_SEEQ
735	select SGI_HAS_WD93
736	select SGI_HAS_ZILOG
737	select SWAP_IO_SPACE
738	select SYS_HAS_CPU_R10000
739	select SYS_HAS_EARLY_PRINTK
740	select SYS_SUPPORTS_64BIT_KERNEL
741	select SYS_SUPPORTS_BIG_ENDIAN
742	select WAR_R10000_LLSC
743	select MIPS_L1_CACHE_SHIFT_7
744	help
745	  This is the SGI Indigo2 with R10000 processor.  To compile a Linux
746	  kernel that runs on these, say Y here.
747
748config SGI_IP30
749	bool "SGI IP30 (Octane/Octane2)"
750	select ARCH_HAS_PHYS_TO_DMA
751	select FW_ARC
752	select FW_ARC64
753	select BOOT_ELF64
754	select CEVT_R4K
755	select CSRC_R4K
756	select FORCE_PCI
757	select SYNC_R4K if SMP
758	select ZONE_DMA32
759	select HAVE_PCI
760	select IRQ_MIPS_CPU
761	select IRQ_DOMAIN_HIERARCHY
762	select NR_CPUS_DEFAULT_2
763	select PCI_DRIVERS_GENERIC
764	select PCI_XTALK_BRIDGE
765	select SYS_HAS_EARLY_PRINTK
766	select SYS_HAS_CPU_R10000
767	select SYS_SUPPORTS_64BIT_KERNEL
768	select SYS_SUPPORTS_BIG_ENDIAN
769	select SYS_SUPPORTS_SMP
770	select WAR_R10000_LLSC
771	select MIPS_L1_CACHE_SHIFT_7
772	select ARC_MEMORY
773	help
774	  These are the SGI Octane and Octane2 graphics workstations.  To
775	  compile a Linux kernel that runs on these, say Y here.
776
777config SGI_IP32
778	bool "SGI IP32 (O2)"
779	select ARC_MEMORY
780	select ARC_PROMLIB
781	select ARCH_HAS_PHYS_TO_DMA
782	select FW_ARC
783	select FW_ARC32
784	select BOOT_ELF32
785	select CEVT_R4K
786	select CSRC_R4K
787	select DMA_NONCOHERENT
788	select HAVE_PCI
789	select IRQ_MIPS_CPU
790	select R5000_CPU_SCACHE
791	select RM7000_CPU_SCACHE
792	select SYS_HAS_CPU_R5000
793	select SYS_HAS_CPU_R10000 if BROKEN
794	select SYS_HAS_CPU_RM7000
795	select SYS_HAS_CPU_NEVADA
796	select SYS_SUPPORTS_64BIT_KERNEL
797	select SYS_SUPPORTS_BIG_ENDIAN
798	select WAR_ICACHE_REFILLS
799	help
800	  If you want this kernel to run on SGI O2 workstation, say Y here.
801
802config SIBYTE_CRHINE
803	bool "Sibyte BCM91120C-CRhine"
804	select BOOT_ELF32
805	select SIBYTE_BCM1120
806	select SWAP_IO_SPACE
807	select SYS_HAS_CPU_SB1
808	select SYS_SUPPORTS_BIG_ENDIAN
809	select SYS_SUPPORTS_LITTLE_ENDIAN
810
811config SIBYTE_CARMEL
812	bool "Sibyte BCM91120x-Carmel"
813	select BOOT_ELF32
814	select SIBYTE_BCM1120
815	select SWAP_IO_SPACE
816	select SYS_HAS_CPU_SB1
817	select SYS_SUPPORTS_BIG_ENDIAN
818	select SYS_SUPPORTS_LITTLE_ENDIAN
819
820config SIBYTE_CRHONE
821	bool "Sibyte BCM91125C-CRhone"
822	select BOOT_ELF32
823	select SIBYTE_BCM1125
824	select SWAP_IO_SPACE
825	select SYS_HAS_CPU_SB1
826	select SYS_SUPPORTS_BIG_ENDIAN
827	select SYS_SUPPORTS_HIGHMEM
828	select SYS_SUPPORTS_LITTLE_ENDIAN
829
830config SIBYTE_RHONE
831	bool "Sibyte BCM91125E-Rhone"
832	select BOOT_ELF32
833	select SIBYTE_BCM1125H
834	select SWAP_IO_SPACE
835	select SYS_HAS_CPU_SB1
836	select SYS_SUPPORTS_BIG_ENDIAN
837	select SYS_SUPPORTS_LITTLE_ENDIAN
838
839config SIBYTE_SWARM
840	bool "Sibyte BCM91250A-SWARM"
841	select BOOT_ELF32
842	select HAVE_PATA_PLATFORM
843	select SIBYTE_SB1250
844	select SWAP_IO_SPACE
845	select SYS_HAS_CPU_SB1
846	select SYS_SUPPORTS_BIG_ENDIAN
847	select SYS_SUPPORTS_HIGHMEM
848	select SYS_SUPPORTS_LITTLE_ENDIAN
849	select ZONE_DMA32 if 64BIT
850	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
851
852config SIBYTE_LITTLESUR
853	bool "Sibyte BCM91250C2-LittleSur"
854	select BOOT_ELF32
855	select HAVE_PATA_PLATFORM
856	select SIBYTE_SB1250
857	select SWAP_IO_SPACE
858	select SYS_HAS_CPU_SB1
859	select SYS_SUPPORTS_BIG_ENDIAN
860	select SYS_SUPPORTS_HIGHMEM
861	select SYS_SUPPORTS_LITTLE_ENDIAN
862	select ZONE_DMA32 if 64BIT
863
864config SIBYTE_SENTOSA
865	bool "Sibyte BCM91250E-Sentosa"
866	select BOOT_ELF32
867	select SIBYTE_SB1250
868	select SWAP_IO_SPACE
869	select SYS_HAS_CPU_SB1
870	select SYS_SUPPORTS_BIG_ENDIAN
871	select SYS_SUPPORTS_LITTLE_ENDIAN
872	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
873
874config SIBYTE_BIGSUR
875	bool "Sibyte BCM91480B-BigSur"
876	select BOOT_ELF32
877	select NR_CPUS_DEFAULT_4
878	select SIBYTE_BCM1x80
879	select SWAP_IO_SPACE
880	select SYS_HAS_CPU_SB1
881	select SYS_SUPPORTS_BIG_ENDIAN
882	select SYS_SUPPORTS_HIGHMEM
883	select SYS_SUPPORTS_LITTLE_ENDIAN
884	select ZONE_DMA32 if 64BIT
885	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
886
887config SNI_RM
888	bool "SNI RM200/300/400"
889	select ARC_MEMORY
890	select ARC_PROMLIB
891	select FW_ARC if CPU_LITTLE_ENDIAN
892	select FW_ARC32 if CPU_LITTLE_ENDIAN
893	select FW_SNIPROM if CPU_BIG_ENDIAN
894	select ARCH_MAY_HAVE_PC_FDC
895	select ARCH_MIGHT_HAVE_PC_PARPORT
896	select ARCH_MIGHT_HAVE_PC_SERIO
897	select BOOT_ELF32
898	select CEVT_R4K
899	select CSRC_R4K
900	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
901	select DMA_NONCOHERENT
902	select GENERIC_ISA_DMA
903	select HAVE_EISA
904	select HAVE_PCSPKR_PLATFORM
905	select HAVE_PCI
906	select IRQ_MIPS_CPU
907	select I8253
908	select I8259
909	select ISA
910	select MIPS_L1_CACHE_SHIFT_6
911	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
912	select SYS_HAS_CPU_R4X00
913	select SYS_HAS_CPU_R5000
914	select SYS_HAS_CPU_R10000
915	select R5000_CPU_SCACHE
916	select SYS_HAS_EARLY_PRINTK
917	select SYS_SUPPORTS_32BIT_KERNEL
918	select SYS_SUPPORTS_64BIT_KERNEL
919	select SYS_SUPPORTS_BIG_ENDIAN
920	select SYS_SUPPORTS_HIGHMEM
921	select SYS_SUPPORTS_LITTLE_ENDIAN
922	select WAR_R4600_V2_HIT_CACHEOP
923	help
924	  The SNI RM200/300/400 are MIPS-based machines manufactured by
925	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
926	  Technology and now in turn merged with Fujitsu.  Say Y here to
927	  support this machine type.
928
929config MACH_TX39XX
930	bool "Toshiba TX39 series based machines"
931
932config MACH_TX49XX
933	bool "Toshiba TX49 series based machines"
934	select WAR_TX49XX_ICACHE_INDEX_INV
935
936config MIKROTIK_RB532
937	bool "Mikrotik RB532 boards"
938	select CEVT_R4K
939	select CSRC_R4K
940	select DMA_NONCOHERENT
941	select HAVE_PCI
942	select IRQ_MIPS_CPU
943	select SYS_HAS_CPU_MIPS32_R1
944	select SYS_SUPPORTS_32BIT_KERNEL
945	select SYS_SUPPORTS_LITTLE_ENDIAN
946	select SWAP_IO_SPACE
947	select BOOT_RAW
948	select GPIOLIB
949	select MIPS_L1_CACHE_SHIFT_4
950	help
951	  Support the Mikrotik(tm) RouterBoard 532 series,
952	  based on the IDT RC32434 SoC.
953
954config CAVIUM_OCTEON_SOC
955	bool "Cavium Networks Octeon SoC based boards"
956	select CEVT_R4K
957	select ARCH_HAS_PHYS_TO_DMA
958	select HAVE_RAPIDIO
959	select PHYS_ADDR_T_64BIT
960	select SYS_SUPPORTS_64BIT_KERNEL
961	select SYS_SUPPORTS_BIG_ENDIAN
962	select EDAC_SUPPORT
963	select EDAC_ATOMIC_SCRUB
964	select SYS_SUPPORTS_LITTLE_ENDIAN
965	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
966	select SYS_HAS_EARLY_PRINTK
967	select SYS_HAS_CPU_CAVIUM_OCTEON
968	select HAVE_PCI
969	select HAVE_PLAT_DELAY
970	select HAVE_PLAT_FW_INIT_CMDLINE
971	select HAVE_PLAT_MEMCPY
972	select ZONE_DMA32
973	select GPIOLIB
974	select USE_OF
975	select ARCH_SPARSEMEM_ENABLE
976	select SYS_SUPPORTS_SMP
977	select NR_CPUS_DEFAULT_64
978	select MIPS_NR_CPU_NR_MAP_1024
979	select BUILTIN_DTB
980	select MTD
981	select MTD_COMPLEX_MAPPINGS
982	select SWIOTLB
983	select SYS_SUPPORTS_RELOCATABLE
984	help
985	  This option supports all of the Octeon reference boards from Cavium
986	  Networks. It builds a kernel that dynamically determines the Octeon
987	  CPU type and supports all known board reference implementations.
988	  Some of the supported boards are:
989		EBT3000
990		EBH3000
991		EBH3100
992		Thunder
993		Kodama
994		Hikari
995	  Say Y here for most Octeon reference boards.
996
997config NLM_XLR_BOARD
998	bool "Netlogic XLR/XLS based systems"
999	select BOOT_ELF32
1000	select NLM_COMMON
1001	select SYS_HAS_CPU_XLR
1002	select SYS_SUPPORTS_SMP
1003	select HAVE_PCI
1004	select SWAP_IO_SPACE
1005	select SYS_SUPPORTS_32BIT_KERNEL
1006	select SYS_SUPPORTS_64BIT_KERNEL
1007	select PHYS_ADDR_T_64BIT
1008	select SYS_SUPPORTS_BIG_ENDIAN
1009	select SYS_SUPPORTS_HIGHMEM
1010	select NR_CPUS_DEFAULT_32
1011	select CEVT_R4K
1012	select CSRC_R4K
1013	select IRQ_MIPS_CPU
1014	select ZONE_DMA32 if 64BIT
1015	select SYNC_R4K
1016	select SYS_HAS_EARLY_PRINTK
1017	select SYS_SUPPORTS_ZBOOT
1018	select SYS_SUPPORTS_ZBOOT_UART16550
1019	help
1020	  Support for systems based on Netlogic XLR and XLS processors.
1021	  Say Y here if you have a XLR or XLS based board.
1022
1023config NLM_XLP_BOARD
1024	bool "Netlogic XLP based systems"
1025	select BOOT_ELF32
1026	select NLM_COMMON
1027	select SYS_HAS_CPU_XLP
1028	select SYS_SUPPORTS_SMP
1029	select HAVE_PCI
1030	select SYS_SUPPORTS_32BIT_KERNEL
1031	select SYS_SUPPORTS_64BIT_KERNEL
1032	select PHYS_ADDR_T_64BIT
1033	select GPIOLIB
1034	select SYS_SUPPORTS_BIG_ENDIAN
1035	select SYS_SUPPORTS_LITTLE_ENDIAN
1036	select SYS_SUPPORTS_HIGHMEM
1037	select NR_CPUS_DEFAULT_32
1038	select CEVT_R4K
1039	select CSRC_R4K
1040	select IRQ_MIPS_CPU
1041	select ZONE_DMA32 if 64BIT
1042	select SYNC_R4K
1043	select SYS_HAS_EARLY_PRINTK
1044	select USE_OF
1045	select SYS_SUPPORTS_ZBOOT
1046	select SYS_SUPPORTS_ZBOOT_UART16550
1047	help
1048	  This board is based on Netlogic XLP Processor.
1049	  Say Y here if you have a XLP based board.
1050
1051endchoice
1052
1053source "arch/mips/alchemy/Kconfig"
1054source "arch/mips/ath25/Kconfig"
1055source "arch/mips/ath79/Kconfig"
1056source "arch/mips/bcm47xx/Kconfig"
1057source "arch/mips/bcm63xx/Kconfig"
1058source "arch/mips/bmips/Kconfig"
1059source "arch/mips/generic/Kconfig"
1060source "arch/mips/ingenic/Kconfig"
1061source "arch/mips/jazz/Kconfig"
1062source "arch/mips/lantiq/Kconfig"
1063source "arch/mips/pic32/Kconfig"
1064source "arch/mips/ralink/Kconfig"
1065source "arch/mips/sgi-ip27/Kconfig"
1066source "arch/mips/sibyte/Kconfig"
1067source "arch/mips/txx9/Kconfig"
1068source "arch/mips/vr41xx/Kconfig"
1069source "arch/mips/cavium-octeon/Kconfig"
1070source "arch/mips/loongson2ef/Kconfig"
1071source "arch/mips/loongson32/Kconfig"
1072source "arch/mips/loongson64/Kconfig"
1073source "arch/mips/netlogic/Kconfig"
1074
1075endmenu
1076
1077config GENERIC_HWEIGHT
1078	bool
1079	default y
1080
1081config GENERIC_CALIBRATE_DELAY
1082	bool
1083	default y
1084
1085config SCHED_OMIT_FRAME_POINTER
1086	bool
1087	default y
1088
1089#
1090# Select some configuration options automatically based on user selections.
1091#
1092config FW_ARC
1093	bool
1094
1095config ARCH_MAY_HAVE_PC_FDC
1096	bool
1097
1098config BOOT_RAW
1099	bool
1100
1101config CEVT_BCM1480
1102	bool
1103
1104config CEVT_DS1287
1105	bool
1106
1107config CEVT_GT641XX
1108	bool
1109
1110config CEVT_R4K
1111	bool
1112
1113config CEVT_SB1250
1114	bool
1115
1116config CEVT_TXX9
1117	bool
1118
1119config CSRC_BCM1480
1120	bool
1121
1122config CSRC_IOASIC
1123	bool
1124
1125config CSRC_R4K
1126	select CLOCKSOURCE_WATCHDOG if CPU_FREQ
1127	bool
1128
1129config CSRC_SB1250
1130	bool
1131
1132config MIPS_CLOCK_VSYSCALL
1133	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1134
1135config GPIO_TXX9
1136	select GPIOLIB
1137	bool
1138
1139config FW_CFE
1140	bool
1141
1142config ARCH_SUPPORTS_UPROBES
1143	bool
1144
1145config DMA_PERDEV_COHERENT
1146	bool
1147	select ARCH_HAS_SETUP_DMA_OPS
1148	select DMA_NONCOHERENT
1149
1150config DMA_NONCOHERENT
1151	bool
1152	#
1153	# MIPS allows mixing "slightly different" Cacheability and Coherency
1154	# Attribute bits.  It is believed that the uncached access through
1155	# KSEG1 and the implementation specific "uncached accelerated" used
1156	# by pgprot_writcombine can be mixed, and the latter sometimes provides
1157	# significant advantages.
1158	#
1159	select ARCH_HAS_DMA_WRITE_COMBINE
1160	select ARCH_HAS_DMA_PREP_COHERENT
1161	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1162	select ARCH_HAS_DMA_SET_UNCACHED
1163	select DMA_NONCOHERENT_MMAP
1164	select NEED_DMA_MAP_STATE
1165
1166config SYS_HAS_EARLY_PRINTK
1167	bool
1168
1169config SYS_SUPPORTS_HOTPLUG_CPU
1170	bool
1171
1172config MIPS_BONITO64
1173	bool
1174
1175config MIPS_MSC
1176	bool
1177
1178config SYNC_R4K
1179	bool
1180
1181config NO_IOPORT_MAP
1182	def_bool n
1183
1184config GENERIC_CSUM
1185	def_bool CPU_NO_LOAD_STORE_LR
1186
1187config GENERIC_ISA_DMA
1188	bool
1189	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1190	select ISA_DMA_API
1191
1192config GENERIC_ISA_DMA_SUPPORT_BROKEN
1193	bool
1194	select GENERIC_ISA_DMA
1195
1196config HAVE_PLAT_DELAY
1197	bool
1198
1199config HAVE_PLAT_FW_INIT_CMDLINE
1200	bool
1201
1202config HAVE_PLAT_MEMCPY
1203	bool
1204
1205config ISA_DMA_API
1206	bool
1207
1208config SYS_SUPPORTS_RELOCATABLE
1209	bool
1210	help
1211	  Selected if the platform supports relocating the kernel.
1212	  The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1213	  to allow access to command line and entropy sources.
1214
1215config MIPS_CBPF_JIT
1216	def_bool y
1217	depends on BPF_JIT && HAVE_CBPF_JIT
1218
1219config MIPS_EBPF_JIT
1220	def_bool y
1221	depends on BPF_JIT && HAVE_EBPF_JIT
1222
1223
1224#
1225# Endianness selection.  Sufficiently obscure so many users don't know what to
1226# answer,so we try hard to limit the available choices.  Also the use of a
1227# choice statement should be more obvious to the user.
1228#
1229choice
1230	prompt "Endianness selection"
1231	help
1232	  Some MIPS machines can be configured for either little or big endian
1233	  byte order. These modes require different kernels and a different
1234	  Linux distribution.  In general there is one preferred byteorder for a
1235	  particular system but some systems are just as commonly used in the
1236	  one or the other endianness.
1237
1238config CPU_BIG_ENDIAN
1239	bool "Big endian"
1240	depends on SYS_SUPPORTS_BIG_ENDIAN
1241
1242config CPU_LITTLE_ENDIAN
1243	bool "Little endian"
1244	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1245
1246endchoice
1247
1248config EXPORT_UASM
1249	bool
1250
1251config SYS_SUPPORTS_APM_EMULATION
1252	bool
1253
1254config SYS_SUPPORTS_BIG_ENDIAN
1255	bool
1256
1257config SYS_SUPPORTS_LITTLE_ENDIAN
1258	bool
1259
1260config MIPS_HUGE_TLB_SUPPORT
1261	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1262
1263config IRQ_MSP_SLP
1264	bool
1265
1266config IRQ_MSP_CIC
1267	bool
1268
1269config IRQ_TXX9
1270	bool
1271
1272config IRQ_GT641XX
1273	bool
1274
1275config PCI_GT64XXX_PCI0
1276	bool
1277
1278config PCI_XTALK_BRIDGE
1279	bool
1280
1281config NO_EXCEPT_FILL
1282	bool
1283
1284config MIPS_SPRAM
1285	bool
1286
1287config SWAP_IO_SPACE
1288	bool
1289
1290config SGI_HAS_INDYDOG
1291	bool
1292
1293config SGI_HAS_HAL2
1294	bool
1295
1296config SGI_HAS_SEEQ
1297	bool
1298
1299config SGI_HAS_WD93
1300	bool
1301
1302config SGI_HAS_ZILOG
1303	bool
1304
1305config SGI_HAS_I8042
1306	bool
1307
1308config DEFAULT_SGI_PARTITION
1309	bool
1310
1311config FW_ARC32
1312	bool
1313
1314config FW_SNIPROM
1315	bool
1316
1317config BOOT_ELF32
1318	bool
1319
1320config MIPS_L1_CACHE_SHIFT_4
1321	bool
1322
1323config MIPS_L1_CACHE_SHIFT_5
1324	bool
1325
1326config MIPS_L1_CACHE_SHIFT_6
1327	bool
1328
1329config MIPS_L1_CACHE_SHIFT_7
1330	bool
1331
1332config MIPS_L1_CACHE_SHIFT
1333	int
1334	default "7" if MIPS_L1_CACHE_SHIFT_7
1335	default "6" if MIPS_L1_CACHE_SHIFT_6
1336	default "5" if MIPS_L1_CACHE_SHIFT_5
1337	default "4" if MIPS_L1_CACHE_SHIFT_4
1338	default "5"
1339
1340config ARC_CMDLINE_ONLY
1341	bool
1342
1343config ARC_CONSOLE
1344	bool "ARC console support"
1345	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1346
1347config ARC_MEMORY
1348	bool
1349
1350config ARC_PROMLIB
1351	bool
1352
1353config FW_ARC64
1354	bool
1355
1356config BOOT_ELF64
1357	bool
1358
1359menu "CPU selection"
1360
1361choice
1362	prompt "CPU type"
1363	default CPU_R4X00
1364
1365config CPU_LOONGSON64
1366	bool "Loongson 64-bit CPU"
1367	depends on SYS_HAS_CPU_LOONGSON64
1368	select ARCH_HAS_PHYS_TO_DMA
1369	select CPU_MIPSR2
1370	select CPU_HAS_PREFETCH
1371	select CPU_SUPPORTS_64BIT_KERNEL
1372	select CPU_SUPPORTS_HIGHMEM
1373	select CPU_SUPPORTS_HUGEPAGES
1374	select CPU_SUPPORTS_MSA
1375	select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
1376	select CPU_MIPSR2_IRQ_VI
1377	select WEAK_ORDERING
1378	select WEAK_REORDERING_BEYOND_LLSC
1379	select MIPS_ASID_BITS_VARIABLE
1380	select MIPS_PGD_C0_CONTEXT
1381	select MIPS_L1_CACHE_SHIFT_6
1382	select GPIOLIB
1383	select SWIOTLB
1384	select HAVE_KVM
1385	help
1386		The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
1387		cores implements the MIPS64R2 instruction set with many extensions,
1388		including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
1389		3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
1390		Loongson-2E/2F is not covered here and will be removed in future.
1391
1392config LOONGSON3_ENHANCEMENT
1393	bool "New Loongson-3 CPU Enhancements"
1394	default n
1395	depends on CPU_LOONGSON64
1396	help
1397	  New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1398	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1399	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1400	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1401	  Fast TLB refill support, etc.
1402
1403	  This option enable those enhancements which are not probed at run
1404	  time. If you want a generic kernel to run on all Loongson 3 machines,
1405	  please say 'N' here. If you want a high-performance kernel to run on
1406	  new Loongson-3 machines only, please say 'Y' here.
1407
1408config CPU_LOONGSON3_WORKAROUNDS
1409	bool "Old Loongson-3 LLSC Workarounds"
1410	default y if SMP
1411	depends on CPU_LOONGSON64
1412	help
1413	  Loongson-3 processors have the llsc issues which require workarounds.
1414	  Without workarounds the system may hang unexpectedly.
1415
1416	  Newer Loongson-3 will fix these issues and no workarounds are needed.
1417	  The workarounds have no significant side effect on them but may
1418	  decrease the performance of the system so this option should be
1419	  disabled unless the kernel is intended to be run on old systems.
1420
1421	  If unsure, please say Y.
1422
1423config CPU_LOONGSON3_CPUCFG_EMULATION
1424	bool "Emulate the CPUCFG instruction on older Loongson cores"
1425	default y
1426	depends on CPU_LOONGSON64
1427	help
1428	  Loongson-3A R4 and newer have the CPUCFG instruction available for
1429	  userland to query CPU capabilities, much like CPUID on x86. This
1430	  option provides emulation of the instruction on older Loongson
1431	  cores, back to Loongson-3A1000.
1432
1433	  If unsure, please say Y.
1434
1435config CPU_LOONGSON2E
1436	bool "Loongson 2E"
1437	depends on SYS_HAS_CPU_LOONGSON2E
1438	select CPU_LOONGSON2EF
1439	help
1440	  The Loongson 2E processor implements the MIPS III instruction set
1441	  with many extensions.
1442
1443	  It has an internal FPGA northbridge, which is compatible to
1444	  bonito64.
1445
1446config CPU_LOONGSON2F
1447	bool "Loongson 2F"
1448	depends on SYS_HAS_CPU_LOONGSON2F
1449	select CPU_LOONGSON2EF
1450	select GPIOLIB
1451	help
1452	  The Loongson 2F processor implements the MIPS III instruction set
1453	  with many extensions.
1454
1455	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1456	  have a similar programming interface with FPGA northbridge used in
1457	  Loongson2E.
1458
1459config CPU_LOONGSON1B
1460	bool "Loongson 1B"
1461	depends on SYS_HAS_CPU_LOONGSON1B
1462	select CPU_LOONGSON32
1463	select LEDS_GPIO_REGISTER
1464	help
1465	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1466	  Release 1 instruction set and part of the MIPS32 Release 2
1467	  instruction set.
1468
1469config CPU_LOONGSON1C
1470	bool "Loongson 1C"
1471	depends on SYS_HAS_CPU_LOONGSON1C
1472	select CPU_LOONGSON32
1473	select LEDS_GPIO_REGISTER
1474	help
1475	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1476	  Release 1 instruction set and part of the MIPS32 Release 2
1477	  instruction set.
1478
1479config CPU_MIPS32_R1
1480	bool "MIPS32 Release 1"
1481	depends on SYS_HAS_CPU_MIPS32_R1
1482	select CPU_HAS_PREFETCH
1483	select CPU_SUPPORTS_32BIT_KERNEL
1484	select CPU_SUPPORTS_HIGHMEM
1485	help
1486	  Choose this option to build a kernel for release 1 or later of the
1487	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1488	  MIPS processor are based on a MIPS32 processor.  If you know the
1489	  specific type of processor in your system, choose those that one
1490	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1491	  Release 2 of the MIPS32 architecture is available since several
1492	  years so chances are you even have a MIPS32 Release 2 processor
1493	  in which case you should choose CPU_MIPS32_R2 instead for better
1494	  performance.
1495
1496config CPU_MIPS32_R2
1497	bool "MIPS32 Release 2"
1498	depends on SYS_HAS_CPU_MIPS32_R2
1499	select CPU_HAS_PREFETCH
1500	select CPU_SUPPORTS_32BIT_KERNEL
1501	select CPU_SUPPORTS_HIGHMEM
1502	select CPU_SUPPORTS_MSA
1503	select HAVE_KVM
1504	help
1505	  Choose this option to build a kernel for release 2 or later of the
1506	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1507	  MIPS processor are based on a MIPS32 processor.  If you know the
1508	  specific type of processor in your system, choose those that one
1509	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1510
1511config CPU_MIPS32_R5
1512	bool "MIPS32 Release 5"
1513	depends on SYS_HAS_CPU_MIPS32_R5
1514	select CPU_HAS_PREFETCH
1515	select CPU_SUPPORTS_32BIT_KERNEL
1516	select CPU_SUPPORTS_HIGHMEM
1517	select CPU_SUPPORTS_MSA
1518	select HAVE_KVM
1519	select MIPS_O32_FP64_SUPPORT
1520	help
1521	  Choose this option to build a kernel for release 5 or later of the
1522	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1523	  family, are based on a MIPS32r5 processor. If you own an older
1524	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1525
1526config CPU_MIPS32_R6
1527	bool "MIPS32 Release 6"
1528	depends on SYS_HAS_CPU_MIPS32_R6
1529	select CPU_HAS_PREFETCH
1530	select CPU_NO_LOAD_STORE_LR
1531	select CPU_SUPPORTS_32BIT_KERNEL
1532	select CPU_SUPPORTS_HIGHMEM
1533	select CPU_SUPPORTS_MSA
1534	select HAVE_KVM
1535	select MIPS_O32_FP64_SUPPORT
1536	help
1537	  Choose this option to build a kernel for release 6 or later of the
1538	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1539	  family, are based on a MIPS32r6 processor. If you own an older
1540	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1541
1542config CPU_MIPS64_R1
1543	bool "MIPS64 Release 1"
1544	depends on SYS_HAS_CPU_MIPS64_R1
1545	select CPU_HAS_PREFETCH
1546	select CPU_SUPPORTS_32BIT_KERNEL
1547	select CPU_SUPPORTS_64BIT_KERNEL
1548	select CPU_SUPPORTS_HIGHMEM
1549	select CPU_SUPPORTS_HUGEPAGES
1550	help
1551	  Choose this option to build a kernel for release 1 or later of the
1552	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1553	  MIPS processor are based on a MIPS64 processor.  If you know the
1554	  specific type of processor in your system, choose those that one
1555	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1556	  Release 2 of the MIPS64 architecture is available since several
1557	  years so chances are you even have a MIPS64 Release 2 processor
1558	  in which case you should choose CPU_MIPS64_R2 instead for better
1559	  performance.
1560
1561config CPU_MIPS64_R2
1562	bool "MIPS64 Release 2"
1563	depends on SYS_HAS_CPU_MIPS64_R2
1564	select CPU_HAS_PREFETCH
1565	select CPU_SUPPORTS_32BIT_KERNEL
1566	select CPU_SUPPORTS_64BIT_KERNEL
1567	select CPU_SUPPORTS_HIGHMEM
1568	select CPU_SUPPORTS_HUGEPAGES
1569	select CPU_SUPPORTS_MSA
1570	select HAVE_KVM
1571	help
1572	  Choose this option to build a kernel for release 2 or later of the
1573	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1574	  MIPS processor are based on a MIPS64 processor.  If you know the
1575	  specific type of processor in your system, choose those that one
1576	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1577
1578config CPU_MIPS64_R5
1579	bool "MIPS64 Release 5"
1580	depends on SYS_HAS_CPU_MIPS64_R5
1581	select CPU_HAS_PREFETCH
1582	select CPU_SUPPORTS_32BIT_KERNEL
1583	select CPU_SUPPORTS_64BIT_KERNEL
1584	select CPU_SUPPORTS_HIGHMEM
1585	select CPU_SUPPORTS_HUGEPAGES
1586	select CPU_SUPPORTS_MSA
1587	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1588	select HAVE_KVM
1589	help
1590	  Choose this option to build a kernel for release 5 or later of the
1591	  MIPS64 architecture.  This is a intermediate MIPS architecture
1592	  release partly implementing release 6 features. Though there is no
1593	  any hardware known to be based on this release.
1594
1595config CPU_MIPS64_R6
1596	bool "MIPS64 Release 6"
1597	depends on SYS_HAS_CPU_MIPS64_R6
1598	select CPU_HAS_PREFETCH
1599	select CPU_NO_LOAD_STORE_LR
1600	select CPU_SUPPORTS_32BIT_KERNEL
1601	select CPU_SUPPORTS_64BIT_KERNEL
1602	select CPU_SUPPORTS_HIGHMEM
1603	select CPU_SUPPORTS_HUGEPAGES
1604	select CPU_SUPPORTS_MSA
1605	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1606	select HAVE_KVM
1607	help
1608	  Choose this option to build a kernel for release 6 or later of the
1609	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1610	  family, are based on a MIPS64r6 processor. If you own an older
1611	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1612
1613config CPU_P5600
1614	bool "MIPS Warrior P5600"
1615	depends on SYS_HAS_CPU_P5600
1616	select CPU_HAS_PREFETCH
1617	select CPU_SUPPORTS_32BIT_KERNEL
1618	select CPU_SUPPORTS_HIGHMEM
1619	select CPU_SUPPORTS_MSA
1620	select CPU_SUPPORTS_CPUFREQ
1621	select CPU_MIPSR2_IRQ_VI
1622	select CPU_MIPSR2_IRQ_EI
1623	select HAVE_KVM
1624	select MIPS_O32_FP64_SUPPORT
1625	help
1626	  Choose this option to build a kernel for MIPS Warrior P5600 CPU.
1627	  It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes,
1628	  MMU with two-levels TLB, UCA, MSA, MDU core level features and system
1629	  level features like up to six P5600 calculation cores, CM2 with L2
1630	  cache, IOCU/IOMMU (though might be unused depending on the system-
1631	  specific IP core configuration), GIC, CPC, virtualisation module,
1632	  eJTAG and PDtrace.
1633
1634config CPU_R3000
1635	bool "R3000"
1636	depends on SYS_HAS_CPU_R3000
1637	select CPU_HAS_WB
1638	select CPU_R3K_TLB
1639	select CPU_SUPPORTS_32BIT_KERNEL
1640	select CPU_SUPPORTS_HIGHMEM
1641	help
1642	  Please make sure to pick the right CPU type. Linux/MIPS is not
1643	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1644	  *not* work on R4000 machines and vice versa.  However, since most
1645	  of the supported machines have an R4000 (or similar) CPU, R4x00
1646	  might be a safe bet.  If the resulting kernel does not work,
1647	  try to recompile with R3000.
1648
1649config CPU_TX39XX
1650	bool "R39XX"
1651	depends on SYS_HAS_CPU_TX39XX
1652	select CPU_SUPPORTS_32BIT_KERNEL
1653	select CPU_R3K_TLB
1654
1655config CPU_VR41XX
1656	bool "R41xx"
1657	depends on SYS_HAS_CPU_VR41XX
1658	select CPU_SUPPORTS_32BIT_KERNEL
1659	select CPU_SUPPORTS_64BIT_KERNEL
1660	help
1661	  The options selects support for the NEC VR4100 series of processors.
1662	  Only choose this option if you have one of these processors as a
1663	  kernel built with this option will not run on any other type of
1664	  processor or vice versa.
1665
1666config CPU_R4300
1667	bool "R4300"
1668	depends on SYS_HAS_CPU_R4300
1669	select CPU_SUPPORTS_32BIT_KERNEL
1670	select CPU_SUPPORTS_64BIT_KERNEL
1671	select CPU_HAS_LOAD_STORE_LR
1672	help
1673	  MIPS Technologies R4300-series processors.
1674
1675config CPU_R4X00
1676	bool "R4x00"
1677	depends on SYS_HAS_CPU_R4X00
1678	select CPU_SUPPORTS_32BIT_KERNEL
1679	select CPU_SUPPORTS_64BIT_KERNEL
1680	select CPU_SUPPORTS_HUGEPAGES
1681	help
1682	  MIPS Technologies R4000-series processors other than 4300, including
1683	  the R4000, R4400, R4600, and 4700.
1684
1685config CPU_TX49XX
1686	bool "R49XX"
1687	depends on SYS_HAS_CPU_TX49XX
1688	select CPU_HAS_PREFETCH
1689	select CPU_SUPPORTS_32BIT_KERNEL
1690	select CPU_SUPPORTS_64BIT_KERNEL
1691	select CPU_SUPPORTS_HUGEPAGES
1692
1693config CPU_R5000
1694	bool "R5000"
1695	depends on SYS_HAS_CPU_R5000
1696	select CPU_SUPPORTS_32BIT_KERNEL
1697	select CPU_SUPPORTS_64BIT_KERNEL
1698	select CPU_SUPPORTS_HUGEPAGES
1699	help
1700	  MIPS Technologies R5000-series processors other than the Nevada.
1701
1702config CPU_R5500
1703	bool "R5500"
1704	depends on SYS_HAS_CPU_R5500
1705	select CPU_SUPPORTS_32BIT_KERNEL
1706	select CPU_SUPPORTS_64BIT_KERNEL
1707	select CPU_SUPPORTS_HUGEPAGES
1708	help
1709	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1710	  instruction set.
1711
1712config CPU_NEVADA
1713	bool "RM52xx"
1714	depends on SYS_HAS_CPU_NEVADA
1715	select CPU_SUPPORTS_32BIT_KERNEL
1716	select CPU_SUPPORTS_64BIT_KERNEL
1717	select CPU_SUPPORTS_HUGEPAGES
1718	help
1719	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1720
1721config CPU_R10000
1722	bool "R10000"
1723	depends on SYS_HAS_CPU_R10000
1724	select CPU_HAS_PREFETCH
1725	select CPU_SUPPORTS_32BIT_KERNEL
1726	select CPU_SUPPORTS_64BIT_KERNEL
1727	select CPU_SUPPORTS_HIGHMEM
1728	select CPU_SUPPORTS_HUGEPAGES
1729	help
1730	  MIPS Technologies R10000-series processors.
1731
1732config CPU_RM7000
1733	bool "RM7000"
1734	depends on SYS_HAS_CPU_RM7000
1735	select CPU_HAS_PREFETCH
1736	select CPU_SUPPORTS_32BIT_KERNEL
1737	select CPU_SUPPORTS_64BIT_KERNEL
1738	select CPU_SUPPORTS_HIGHMEM
1739	select CPU_SUPPORTS_HUGEPAGES
1740
1741config CPU_SB1
1742	bool "SB1"
1743	depends on SYS_HAS_CPU_SB1
1744	select CPU_SUPPORTS_32BIT_KERNEL
1745	select CPU_SUPPORTS_64BIT_KERNEL
1746	select CPU_SUPPORTS_HIGHMEM
1747	select CPU_SUPPORTS_HUGEPAGES
1748	select WEAK_ORDERING
1749
1750config CPU_CAVIUM_OCTEON
1751	bool "Cavium Octeon processor"
1752	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1753	select CPU_HAS_PREFETCH
1754	select CPU_SUPPORTS_64BIT_KERNEL
1755	select WEAK_ORDERING
1756	select CPU_SUPPORTS_HIGHMEM
1757	select CPU_SUPPORTS_HUGEPAGES
1758	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1759	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1760	select MIPS_L1_CACHE_SHIFT_7
1761	select HAVE_KVM
1762	help
1763	  The Cavium Octeon processor is a highly integrated chip containing
1764	  many ethernet hardware widgets for networking tasks. The processor
1765	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1766	  Full details can be found at http://www.caviumnetworks.com.
1767
1768config CPU_BMIPS
1769	bool "Broadcom BMIPS"
1770	depends on SYS_HAS_CPU_BMIPS
1771	select CPU_MIPS32
1772	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1773	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1774	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1775	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1776	select CPU_SUPPORTS_32BIT_KERNEL
1777	select DMA_NONCOHERENT
1778	select IRQ_MIPS_CPU
1779	select SWAP_IO_SPACE
1780	select WEAK_ORDERING
1781	select CPU_SUPPORTS_HIGHMEM
1782	select CPU_HAS_PREFETCH
1783	select CPU_SUPPORTS_CPUFREQ
1784	select MIPS_EXTERNAL_TIMER
1785	help
1786	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1787
1788config CPU_XLR
1789	bool "Netlogic XLR SoC"
1790	depends on SYS_HAS_CPU_XLR
1791	select CPU_SUPPORTS_32BIT_KERNEL
1792	select CPU_SUPPORTS_64BIT_KERNEL
1793	select CPU_SUPPORTS_HIGHMEM
1794	select CPU_SUPPORTS_HUGEPAGES
1795	select WEAK_ORDERING
1796	select WEAK_REORDERING_BEYOND_LLSC
1797	help
1798	  Netlogic Microsystems XLR/XLS processors.
1799
1800config CPU_XLP
1801	bool "Netlogic XLP SoC"
1802	depends on SYS_HAS_CPU_XLP
1803	select CPU_SUPPORTS_32BIT_KERNEL
1804	select CPU_SUPPORTS_64BIT_KERNEL
1805	select CPU_SUPPORTS_HIGHMEM
1806	select WEAK_ORDERING
1807	select WEAK_REORDERING_BEYOND_LLSC
1808	select CPU_HAS_PREFETCH
1809	select CPU_MIPSR2
1810	select CPU_SUPPORTS_HUGEPAGES
1811	select MIPS_ASID_BITS_VARIABLE
1812	help
1813	  Netlogic Microsystems XLP processors.
1814endchoice
1815
1816config CPU_MIPS32_3_5_FEATURES
1817	bool "MIPS32 Release 3.5 Features"
1818	depends on SYS_HAS_CPU_MIPS32_R3_5
1819	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \
1820		   CPU_P5600
1821	help
1822	  Choose this option to build a kernel for release 2 or later of the
1823	  MIPS32 architecture including features from the 3.5 release such as
1824	  support for Enhanced Virtual Addressing (EVA).
1825
1826config CPU_MIPS32_3_5_EVA
1827	bool "Enhanced Virtual Addressing (EVA)"
1828	depends on CPU_MIPS32_3_5_FEATURES
1829	select EVA
1830	default y
1831	help
1832	  Choose this option if you want to enable the Enhanced Virtual
1833	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1834	  One of its primary benefits is an increase in the maximum size
1835	  of lowmem (up to 3GB). If unsure, say 'N' here.
1836
1837config CPU_MIPS32_R5_FEATURES
1838	bool "MIPS32 Release 5 Features"
1839	depends on SYS_HAS_CPU_MIPS32_R5
1840	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600
1841	help
1842	  Choose this option to build a kernel for release 2 or later of the
1843	  MIPS32 architecture including features from release 5 such as
1844	  support for Extended Physical Addressing (XPA).
1845
1846config CPU_MIPS32_R5_XPA
1847	bool "Extended Physical Addressing (XPA)"
1848	depends on CPU_MIPS32_R5_FEATURES
1849	depends on !EVA
1850	depends on !PAGE_SIZE_4KB
1851	depends on SYS_SUPPORTS_HIGHMEM
1852	select XPA
1853	select HIGHMEM
1854	select PHYS_ADDR_T_64BIT
1855	default n
1856	help
1857	  Choose this option if you want to enable the Extended Physical
1858	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1859	  benefit is to increase physical addressing equal to or greater
1860	  than 40 bits. Note that this has the side effect of turning on
1861	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1862	  If unsure, say 'N' here.
1863
1864if CPU_LOONGSON2F
1865config CPU_NOP_WORKAROUNDS
1866	bool
1867
1868config CPU_JUMP_WORKAROUNDS
1869	bool
1870
1871config CPU_LOONGSON2F_WORKAROUNDS
1872	bool "Loongson 2F Workarounds"
1873	default y
1874	select CPU_NOP_WORKAROUNDS
1875	select CPU_JUMP_WORKAROUNDS
1876	help
1877	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1878	  require workarounds.  Without workarounds the system may hang
1879	  unexpectedly.  For more information please refer to the gas
1880	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1881
1882	  Loongson 2F03 and later have fixed these issues and no workarounds
1883	  are needed.  The workarounds have no significant side effect on them
1884	  but may decrease the performance of the system so this option should
1885	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1886	  systems.
1887
1888	  If unsure, please say Y.
1889endif # CPU_LOONGSON2F
1890
1891config SYS_SUPPORTS_ZBOOT
1892	bool
1893	select HAVE_KERNEL_GZIP
1894	select HAVE_KERNEL_BZIP2
1895	select HAVE_KERNEL_LZ4
1896	select HAVE_KERNEL_LZMA
1897	select HAVE_KERNEL_LZO
1898	select HAVE_KERNEL_XZ
1899	select HAVE_KERNEL_ZSTD
1900
1901config SYS_SUPPORTS_ZBOOT_UART16550
1902	bool
1903	select SYS_SUPPORTS_ZBOOT
1904
1905config SYS_SUPPORTS_ZBOOT_UART_PROM
1906	bool
1907	select SYS_SUPPORTS_ZBOOT
1908
1909config CPU_LOONGSON2EF
1910	bool
1911	select CPU_SUPPORTS_32BIT_KERNEL
1912	select CPU_SUPPORTS_64BIT_KERNEL
1913	select CPU_SUPPORTS_HIGHMEM
1914	select CPU_SUPPORTS_HUGEPAGES
1915	select ARCH_HAS_PHYS_TO_DMA
1916
1917config CPU_LOONGSON32
1918	bool
1919	select CPU_MIPS32
1920	select CPU_MIPSR2
1921	select CPU_HAS_PREFETCH
1922	select CPU_SUPPORTS_32BIT_KERNEL
1923	select CPU_SUPPORTS_HIGHMEM
1924	select CPU_SUPPORTS_CPUFREQ
1925
1926config CPU_BMIPS32_3300
1927	select SMP_UP if SMP
1928	bool
1929
1930config CPU_BMIPS4350
1931	bool
1932	select SYS_SUPPORTS_SMP
1933	select SYS_SUPPORTS_HOTPLUG_CPU
1934
1935config CPU_BMIPS4380
1936	bool
1937	select MIPS_L1_CACHE_SHIFT_6
1938	select SYS_SUPPORTS_SMP
1939	select SYS_SUPPORTS_HOTPLUG_CPU
1940	select CPU_HAS_RIXI
1941
1942config CPU_BMIPS5000
1943	bool
1944	select MIPS_CPU_SCACHE
1945	select MIPS_L1_CACHE_SHIFT_7
1946	select SYS_SUPPORTS_SMP
1947	select SYS_SUPPORTS_HOTPLUG_CPU
1948	select CPU_HAS_RIXI
1949
1950config SYS_HAS_CPU_LOONGSON64
1951	bool
1952	select CPU_SUPPORTS_CPUFREQ
1953	select CPU_HAS_RIXI
1954
1955config SYS_HAS_CPU_LOONGSON2E
1956	bool
1957
1958config SYS_HAS_CPU_LOONGSON2F
1959	bool
1960	select CPU_SUPPORTS_CPUFREQ
1961	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1962
1963config SYS_HAS_CPU_LOONGSON1B
1964	bool
1965
1966config SYS_HAS_CPU_LOONGSON1C
1967	bool
1968
1969config SYS_HAS_CPU_MIPS32_R1
1970	bool
1971
1972config SYS_HAS_CPU_MIPS32_R2
1973	bool
1974
1975config SYS_HAS_CPU_MIPS32_R3_5
1976	bool
1977
1978config SYS_HAS_CPU_MIPS32_R5
1979	bool
1980	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1981
1982config SYS_HAS_CPU_MIPS32_R6
1983	bool
1984	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1985
1986config SYS_HAS_CPU_MIPS64_R1
1987	bool
1988
1989config SYS_HAS_CPU_MIPS64_R2
1990	bool
1991
1992config SYS_HAS_CPU_MIPS64_R6
1993	bool
1994	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1995
1996config SYS_HAS_CPU_P5600
1997	bool
1998	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
1999
2000config SYS_HAS_CPU_R3000
2001	bool
2002
2003config SYS_HAS_CPU_TX39XX
2004	bool
2005
2006config SYS_HAS_CPU_VR41XX
2007	bool
2008
2009config SYS_HAS_CPU_R4300
2010	bool
2011
2012config SYS_HAS_CPU_R4X00
2013	bool
2014
2015config SYS_HAS_CPU_TX49XX
2016	bool
2017
2018config SYS_HAS_CPU_R5000
2019	bool
2020
2021config SYS_HAS_CPU_R5500
2022	bool
2023
2024config SYS_HAS_CPU_NEVADA
2025	bool
2026
2027config SYS_HAS_CPU_R10000
2028	bool
2029	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2030
2031config SYS_HAS_CPU_RM7000
2032	bool
2033
2034config SYS_HAS_CPU_SB1
2035	bool
2036
2037config SYS_HAS_CPU_CAVIUM_OCTEON
2038	bool
2039
2040config SYS_HAS_CPU_BMIPS
2041	bool
2042
2043config SYS_HAS_CPU_BMIPS32_3300
2044	bool
2045	select SYS_HAS_CPU_BMIPS
2046
2047config SYS_HAS_CPU_BMIPS4350
2048	bool
2049	select SYS_HAS_CPU_BMIPS
2050
2051config SYS_HAS_CPU_BMIPS4380
2052	bool
2053	select SYS_HAS_CPU_BMIPS
2054
2055config SYS_HAS_CPU_BMIPS5000
2056	bool
2057	select SYS_HAS_CPU_BMIPS
2058	select ARCH_HAS_SYNC_DMA_FOR_CPU
2059
2060config SYS_HAS_CPU_XLR
2061	bool
2062
2063config SYS_HAS_CPU_XLP
2064	bool
2065
2066#
2067# CPU may reorder R->R, R->W, W->R, W->W
2068# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2069#
2070config WEAK_ORDERING
2071	bool
2072
2073#
2074# CPU may reorder reads and writes beyond LL/SC
2075# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2076#
2077config WEAK_REORDERING_BEYOND_LLSC
2078	bool
2079endmenu
2080
2081#
2082# These two indicate any level of the MIPS32 and MIPS64 architecture
2083#
2084config CPU_MIPS32
2085	bool
2086	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \
2087		     CPU_MIPS32_R6 || CPU_P5600
2088
2089config CPU_MIPS64
2090	bool
2091	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
2092		     CPU_MIPS64_R6 || CPU_LOONGSON64 || CPU_CAVIUM_OCTEON
2093
2094#
2095# These indicate the revision of the architecture
2096#
2097config CPU_MIPSR1
2098	bool
2099	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2100
2101config CPU_MIPSR2
2102	bool
2103	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2104	select CPU_HAS_RIXI
2105	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2106	select MIPS_SPRAM
2107
2108config CPU_MIPSR5
2109	bool
2110	default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600
2111	select CPU_HAS_RIXI
2112	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2113	select MIPS_SPRAM
2114
2115config CPU_MIPSR6
2116	bool
2117	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2118	select CPU_HAS_RIXI
2119	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2120	select HAVE_ARCH_BITREVERSE
2121	select MIPS_ASID_BITS_VARIABLE
2122	select MIPS_CRC_SUPPORT
2123	select MIPS_SPRAM
2124
2125config TARGET_ISA_REV
2126	int
2127	default 1 if CPU_MIPSR1
2128	default 2 if CPU_MIPSR2
2129	default 5 if CPU_MIPSR5
2130	default 6 if CPU_MIPSR6
2131	default 0
2132	help
2133	  Reflects the ISA revision being targeted by the kernel build. This
2134	  is effectively the Kconfig equivalent of MIPS_ISA_REV.
2135
2136config EVA
2137	bool
2138
2139config XPA
2140	bool
2141
2142config SYS_SUPPORTS_32BIT_KERNEL
2143	bool
2144config SYS_SUPPORTS_64BIT_KERNEL
2145	bool
2146config CPU_SUPPORTS_32BIT_KERNEL
2147	bool
2148config CPU_SUPPORTS_64BIT_KERNEL
2149	bool
2150config CPU_SUPPORTS_CPUFREQ
2151	bool
2152config CPU_SUPPORTS_ADDRWINCFG
2153	bool
2154config CPU_SUPPORTS_HUGEPAGES
2155	bool
2156	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2157config MIPS_PGD_C0_CONTEXT
2158	bool
2159	depends on 64BIT
2160	default y if (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2161
2162#
2163# Set to y for ptrace access to watch registers.
2164#
2165config HARDWARE_WATCHPOINTS
2166	bool
2167	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2168
2169menu "Kernel type"
2170
2171choice
2172	prompt "Kernel code model"
2173	help
2174	  You should only select this option if you have a workload that
2175	  actually benefits from 64-bit processing or if your machine has
2176	  large memory.  You will only be presented a single option in this
2177	  menu if your system does not support both 32-bit and 64-bit kernels.
2178
2179config 32BIT
2180	bool "32-bit kernel"
2181	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2182	select TRAD_SIGNALS
2183	help
2184	  Select this option if you want to build a 32-bit kernel.
2185
2186config 64BIT
2187	bool "64-bit kernel"
2188	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2189	help
2190	  Select this option if you want to build a 64-bit kernel.
2191
2192endchoice
2193
2194config MIPS_VA_BITS_48
2195	bool "48 bits virtual memory"
2196	depends on 64BIT
2197	help
2198	  Support a maximum at least 48 bits of application virtual
2199	  memory.  Default is 40 bits or less, depending on the CPU.
2200	  For page sizes 16k and above, this option results in a small
2201	  memory overhead for page tables.  For 4k page size, a fourth
2202	  level of page tables is added which imposes both a memory
2203	  overhead as well as slower TLB fault handling.
2204
2205	  If unsure, say N.
2206
2207choice
2208	prompt "Kernel page size"
2209	default PAGE_SIZE_4KB
2210
2211config PAGE_SIZE_4KB
2212	bool "4kB"
2213	depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
2214	help
2215	  This option select the standard 4kB Linux page size.  On some
2216	  R3000-family processors this is the only available page size.  Using
2217	  4kB page size will minimize memory consumption and is therefore
2218	  recommended for low memory systems.
2219
2220config PAGE_SIZE_8KB
2221	bool "8kB"
2222	depends on CPU_CAVIUM_OCTEON
2223	depends on !MIPS_VA_BITS_48
2224	help
2225	  Using 8kB page size will result in higher performance kernel at
2226	  the price of higher memory consumption.  This option is available
2227	  only on cnMIPS processors.  Note that you will need a suitable Linux
2228	  distribution to support this.
2229
2230config PAGE_SIZE_16KB
2231	bool "16kB"
2232	depends on !CPU_R3000 && !CPU_TX39XX
2233	help
2234	  Using 16kB page size will result in higher performance kernel at
2235	  the price of higher memory consumption.  This option is available on
2236	  all non-R3000 family processors.  Note that you will need a suitable
2237	  Linux distribution to support this.
2238
2239config PAGE_SIZE_32KB
2240	bool "32kB"
2241	depends on CPU_CAVIUM_OCTEON
2242	depends on !MIPS_VA_BITS_48
2243	help
2244	  Using 32kB page size will result in higher performance kernel at
2245	  the price of higher memory consumption.  This option is available
2246	  only on cnMIPS cores.  Note that you will need a suitable Linux
2247	  distribution to support this.
2248
2249config PAGE_SIZE_64KB
2250	bool "64kB"
2251	depends on !CPU_R3000 && !CPU_TX39XX
2252	help
2253	  Using 64kB page size will result in higher performance kernel at
2254	  the price of higher memory consumption.  This option is available on
2255	  all non-R3000 family processor.  Not that at the time of this
2256	  writing this option is still high experimental.
2257
2258endchoice
2259
2260config FORCE_MAX_ZONEORDER
2261	int "Maximum zone order"
2262	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2263	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2264	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2265	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2266	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2267	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2268	range 0 64
2269	default "11"
2270	help
2271	  The kernel memory allocator divides physically contiguous memory
2272	  blocks into "zones", where each zone is a power of two number of
2273	  pages.  This option selects the largest power of two that the kernel
2274	  keeps in the memory allocator.  If you need to allocate very large
2275	  blocks of physically contiguous memory, then you may need to
2276	  increase this value.
2277
2278	  This config option is actually maximum order plus one. For example,
2279	  a value of 11 means that the largest free memory block is 2^10 pages.
2280
2281	  The page size is not necessarily 4KB.  Keep this in mind
2282	  when choosing a value for this option.
2283
2284config BOARD_SCACHE
2285	bool
2286
2287config IP22_CPU_SCACHE
2288	bool
2289	select BOARD_SCACHE
2290
2291#
2292# Support for a MIPS32 / MIPS64 style S-caches
2293#
2294config MIPS_CPU_SCACHE
2295	bool
2296	select BOARD_SCACHE
2297
2298config R5000_CPU_SCACHE
2299	bool
2300	select BOARD_SCACHE
2301
2302config RM7000_CPU_SCACHE
2303	bool
2304	select BOARD_SCACHE
2305
2306config SIBYTE_DMA_PAGEOPS
2307	bool "Use DMA to clear/copy pages"
2308	depends on CPU_SB1
2309	help
2310	  Instead of using the CPU to zero and copy pages, use a Data Mover
2311	  channel.  These DMA channels are otherwise unused by the standard
2312	  SiByte Linux port.  Seems to give a small performance benefit.
2313
2314config CPU_HAS_PREFETCH
2315	bool
2316
2317config CPU_GENERIC_DUMP_TLB
2318	bool
2319	default y if !(CPU_R3000 || CPU_TX39XX)
2320
2321config MIPS_FP_SUPPORT
2322	bool "Floating Point support" if EXPERT
2323	default y
2324	help
2325	  Select y to include support for floating point in the kernel
2326	  including initialization of FPU hardware, FP context save & restore
2327	  and emulation of an FPU where necessary. Without this support any
2328	  userland program attempting to use floating point instructions will
2329	  receive a SIGILL.
2330
2331	  If you know that your userland will not attempt to use floating point
2332	  instructions then you can say n here to shrink the kernel a little.
2333
2334	  If unsure, say y.
2335
2336config CPU_R2300_FPU
2337	bool
2338	depends on MIPS_FP_SUPPORT
2339	default y if CPU_R3000 || CPU_TX39XX
2340
2341config CPU_R3K_TLB
2342	bool
2343
2344config CPU_R4K_FPU
2345	bool
2346	depends on MIPS_FP_SUPPORT
2347	default y if !CPU_R2300_FPU
2348
2349config CPU_R4K_CACHE_TLB
2350	bool
2351	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2352
2353config MIPS_MT_SMP
2354	bool "MIPS MT SMP support (1 TC on each available VPE)"
2355	default y
2356	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2357	select CPU_MIPSR2_IRQ_VI
2358	select CPU_MIPSR2_IRQ_EI
2359	select SYNC_R4K
2360	select MIPS_MT
2361	select SMP
2362	select SMP_UP
2363	select SYS_SUPPORTS_SMP
2364	select SYS_SUPPORTS_SCHED_SMT
2365	select MIPS_PERF_SHARED_TC_COUNTERS
2366	help
2367	  This is a kernel model which is known as SMVP. This is supported
2368	  on cores with the MT ASE and uses the available VPEs to implement
2369	  virtual processors which supports SMP. This is equivalent to the
2370	  Intel Hyperthreading feature. For further information go to
2371	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2372
2373config MIPS_MT
2374	bool
2375
2376config SCHED_SMT
2377	bool "SMT (multithreading) scheduler support"
2378	depends on SYS_SUPPORTS_SCHED_SMT
2379	default n
2380	help
2381	  SMT scheduler support improves the CPU scheduler's decision making
2382	  when dealing with MIPS MT enabled cores at a cost of slightly
2383	  increased overhead in some places. If unsure say N here.
2384
2385config SYS_SUPPORTS_SCHED_SMT
2386	bool
2387
2388config SYS_SUPPORTS_MULTITHREADING
2389	bool
2390
2391config MIPS_MT_FPAFF
2392	bool "Dynamic FPU affinity for FP-intensive threads"
2393	default y
2394	depends on MIPS_MT_SMP
2395
2396config MIPSR2_TO_R6_EMULATOR
2397	bool "MIPS R2-to-R6 emulator"
2398	depends on CPU_MIPSR6
2399	depends on MIPS_FP_SUPPORT
2400	default y
2401	help
2402	  Choose this option if you want to run non-R6 MIPS userland code.
2403	  Even if you say 'Y' here, the emulator will still be disabled by
2404	  default. You can enable it using the 'mipsr2emu' kernel option.
2405	  The only reason this is a build-time option is to save ~14K from the
2406	  final kernel image.
2407
2408config SYS_SUPPORTS_VPE_LOADER
2409	bool
2410	depends on SYS_SUPPORTS_MULTITHREADING
2411	help
2412	  Indicates that the platform supports the VPE loader, and provides
2413	  physical_memsize.
2414
2415config MIPS_VPE_LOADER
2416	bool "VPE loader support."
2417	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2418	select CPU_MIPSR2_IRQ_VI
2419	select CPU_MIPSR2_IRQ_EI
2420	select MIPS_MT
2421	help
2422	  Includes a loader for loading an elf relocatable object
2423	  onto another VPE and running it.
2424
2425config MIPS_VPE_LOADER_CMP
2426	bool
2427	default "y"
2428	depends on MIPS_VPE_LOADER && MIPS_CMP
2429
2430config MIPS_VPE_LOADER_MT
2431	bool
2432	default "y"
2433	depends on MIPS_VPE_LOADER && !MIPS_CMP
2434
2435config MIPS_VPE_LOADER_TOM
2436	bool "Load VPE program into memory hidden from linux"
2437	depends on MIPS_VPE_LOADER
2438	default y
2439	help
2440	  The loader can use memory that is present but has been hidden from
2441	  Linux using the kernel command line option "mem=xxMB". It's up to
2442	  you to ensure the amount you put in the option and the space your
2443	  program requires is less or equal to the amount physically present.
2444
2445config MIPS_VPE_APSP_API
2446	bool "Enable support for AP/SP API (RTLX)"
2447	depends on MIPS_VPE_LOADER
2448
2449config MIPS_VPE_APSP_API_CMP
2450	bool
2451	default "y"
2452	depends on MIPS_VPE_APSP_API && MIPS_CMP
2453
2454config MIPS_VPE_APSP_API_MT
2455	bool
2456	default "y"
2457	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2458
2459config MIPS_CMP
2460	bool "MIPS CMP framework support (DEPRECATED)"
2461	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2462	select SMP
2463	select SYNC_R4K
2464	select SYS_SUPPORTS_SMP
2465	select WEAK_ORDERING
2466	default n
2467	help
2468	  Select this if you are using a bootloader which implements the "CMP
2469	  framework" protocol (ie. YAMON) and want your kernel to make use of
2470	  its ability to start secondary CPUs.
2471
2472	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2473	  instead of this.
2474
2475config MIPS_CPS
2476	bool "MIPS Coherent Processing System support"
2477	depends on SYS_SUPPORTS_MIPS_CPS
2478	select MIPS_CM
2479	select MIPS_CPS_PM if HOTPLUG_CPU
2480	select SMP
2481	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2482	select SYS_SUPPORTS_HOTPLUG_CPU
2483	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2484	select SYS_SUPPORTS_SMP
2485	select WEAK_ORDERING
2486	select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
2487	help
2488	  Select this if you wish to run an SMP kernel across multiple cores
2489	  within a MIPS Coherent Processing System. When this option is
2490	  enabled the kernel will probe for other cores and boot them with
2491	  no external assistance. It is safe to enable this when hardware
2492	  support is unavailable.
2493
2494config MIPS_CPS_PM
2495	depends on MIPS_CPS
2496	bool
2497
2498config MIPS_CM
2499	bool
2500	select MIPS_CPC
2501
2502config MIPS_CPC
2503	bool
2504
2505config SB1_PASS_2_WORKAROUNDS
2506	bool
2507	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2508	default y
2509
2510config SB1_PASS_2_1_WORKAROUNDS
2511	bool
2512	depends on CPU_SB1 && CPU_SB1_PASS_2
2513	default y
2514
2515choice
2516	prompt "SmartMIPS or microMIPS ASE support"
2517
2518config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2519	bool "None"
2520	help
2521	  Select this if you want neither microMIPS nor SmartMIPS support
2522
2523config CPU_HAS_SMARTMIPS
2524	depends on SYS_SUPPORTS_SMARTMIPS
2525	bool "SmartMIPS"
2526	help
2527	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2528	  increased security at both hardware and software level for
2529	  smartcards.  Enabling this option will allow proper use of the
2530	  SmartMIPS instructions by Linux applications.  However a kernel with
2531	  this option will not work on a MIPS core without SmartMIPS core.  If
2532	  you don't know you probably don't have SmartMIPS and should say N
2533	  here.
2534
2535config CPU_MICROMIPS
2536	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2537	bool "microMIPS"
2538	help
2539	  When this option is enabled the kernel will be built using the
2540	  microMIPS ISA
2541
2542endchoice
2543
2544config CPU_HAS_MSA
2545	bool "Support for the MIPS SIMD Architecture"
2546	depends on CPU_SUPPORTS_MSA
2547	depends on MIPS_FP_SUPPORT
2548	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2549	help
2550	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2551	  and a set of SIMD instructions to operate on them. When this option
2552	  is enabled the kernel will support allocating & switching MSA
2553	  vector register contexts. If you know that your kernel will only be
2554	  running on CPUs which do not support MSA or that your userland will
2555	  not be making use of it then you may wish to say N here to reduce
2556	  the size & complexity of your kernel.
2557
2558	  If unsure, say Y.
2559
2560config CPU_HAS_WB
2561	bool
2562
2563config XKS01
2564	bool
2565
2566config CPU_HAS_DIEI
2567	depends on !CPU_DIEI_BROKEN
2568	bool
2569
2570config CPU_DIEI_BROKEN
2571	bool
2572
2573config CPU_HAS_RIXI
2574	bool
2575
2576config CPU_NO_LOAD_STORE_LR
2577	bool
2578	help
2579	  CPU lacks support for unaligned load and store instructions:
2580	  LWL, LWR, SWL, SWR (Load/store word left/right).
2581	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
2582	  systems).
2583
2584#
2585# Vectored interrupt mode is an R2 feature
2586#
2587config CPU_MIPSR2_IRQ_VI
2588	bool
2589
2590#
2591# Extended interrupt mode is an R2 feature
2592#
2593config CPU_MIPSR2_IRQ_EI
2594	bool
2595
2596config CPU_HAS_SYNC
2597	bool
2598	depends on !CPU_R3000
2599	default y
2600
2601#
2602# CPU non-features
2603#
2604config CPU_DADDI_WORKAROUNDS
2605	bool
2606
2607config CPU_R4000_WORKAROUNDS
2608	bool
2609	select CPU_R4400_WORKAROUNDS
2610
2611config CPU_R4400_WORKAROUNDS
2612	bool
2613
2614config CPU_R4X00_BUGS64
2615	bool
2616	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)
2617
2618config MIPS_ASID_SHIFT
2619	int
2620	default 6 if CPU_R3000 || CPU_TX39XX
2621	default 0
2622
2623config MIPS_ASID_BITS
2624	int
2625	default 0 if MIPS_ASID_BITS_VARIABLE
2626	default 6 if CPU_R3000 || CPU_TX39XX
2627	default 8
2628
2629config MIPS_ASID_BITS_VARIABLE
2630	bool
2631
2632config MIPS_CRC_SUPPORT
2633	bool
2634
2635# R4600 erratum.  Due to the lack of errata information the exact
2636# technical details aren't known.  I've experimentally found that disabling
2637# interrupts during indexed I-cache flushes seems to be sufficient to deal
2638# with the issue.
2639config WAR_R4600_V1_INDEX_ICACHEOP
2640	bool
2641
2642# Pleasures of the R4600 V1.x.  Cite from the IDT R4600 V1.7 errata:
2643#
2644#  18. The CACHE instructions Hit_Writeback_Invalidate_D, Hit_Writeback_D,
2645#      Hit_Invalidate_D and Create_Dirty_Excl_D should only be
2646#      executed if there is no other dcache activity. If the dcache is
2647#      accessed for another instruction immediately preceding when these
2648#      cache instructions are executing, it is possible that the dcache
2649#      tag match outputs used by these cache instructions will be
2650#      incorrect. These cache instructions should be preceded by at least
2651#      four instructions that are not any kind of load or store
2652#      instruction.
2653#
2654#      This is not allowed:    lw
2655#                              nop
2656#                              nop
2657#                              nop
2658#                              cache       Hit_Writeback_Invalidate_D
2659#
2660#      This is allowed:        lw
2661#                              nop
2662#                              nop
2663#                              nop
2664#                              nop
2665#                              cache       Hit_Writeback_Invalidate_D
2666config WAR_R4600_V1_HIT_CACHEOP
2667	bool
2668
2669# Writeback and invalidate the primary cache dcache before DMA.
2670#
2671# R4600 v2.0 bug: "The CACHE instructions Hit_Writeback_Inv_D,
2672# Hit_Writeback_D, Hit_Invalidate_D and Create_Dirty_Exclusive_D will only
2673# operate correctly if the internal data cache refill buffer is empty.  These
2674# CACHE instructions should be separated from any potential data cache miss
2675# by a load instruction to an uncached address to empty the response buffer."
2676# (Revision 2.0 device errata from IDT available on https://www.idt.com/
2677# in .pdf format.)
2678config WAR_R4600_V2_HIT_CACHEOP
2679	bool
2680
2681# From TX49/H2 manual: "If the instruction (i.e. CACHE) is issued for
2682# the line which this instruction itself exists, the following
2683# operation is not guaranteed."
2684#
2685# Workaround: do two phase flushing for Index_Invalidate_I
2686config WAR_TX49XX_ICACHE_INDEX_INV
2687	bool
2688
2689# The RM7000 processors and the E9000 cores have a bug (though PMC-Sierra
2690# opposes it being called that) where invalid instructions in the same
2691# I-cache line worth of instructions being fetched may case spurious
2692# exceptions.
2693config WAR_ICACHE_REFILLS
2694	bool
2695
2696# On the R10000 up to version 2.6 (not sure about 2.7) there is a bug that
2697# may cause ll / sc and lld / scd sequences to execute non-atomically.
2698config WAR_R10000_LLSC
2699	bool
2700
2701# 34K core erratum: "Problems Executing the TLBR Instruction"
2702config WAR_MIPS34K_MISSED_ITLB
2703	bool
2704
2705#
2706# - Highmem only makes sense for the 32-bit kernel.
2707# - The current highmem code will only work properly on physically indexed
2708#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2709#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2710#   moment we protect the user and offer the highmem option only on machines
2711#   where it's known to be safe.  This will not offer highmem on a few systems
2712#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2713#   indexed CPUs but we're playing safe.
2714# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2715#   know they might have memory configurations that could make use of highmem
2716#   support.
2717#
2718config HIGHMEM
2719	bool "High Memory Support"
2720	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2721	select KMAP_LOCAL
2722
2723config CPU_SUPPORTS_HIGHMEM
2724	bool
2725
2726config SYS_SUPPORTS_HIGHMEM
2727	bool
2728
2729config SYS_SUPPORTS_SMARTMIPS
2730	bool
2731
2732config SYS_SUPPORTS_MICROMIPS
2733	bool
2734
2735config SYS_SUPPORTS_MIPS16
2736	bool
2737	help
2738	  This option must be set if a kernel might be executed on a MIPS16-
2739	  enabled CPU even if MIPS16 is not actually being used.  In other
2740	  words, it makes the kernel MIPS16-tolerant.
2741
2742config CPU_SUPPORTS_MSA
2743	bool
2744
2745config ARCH_FLATMEM_ENABLE
2746	def_bool y
2747	depends on !NUMA && !CPU_LOONGSON2EF
2748
2749config ARCH_SPARSEMEM_ENABLE
2750	bool
2751	select SPARSEMEM_STATIC if !SGI_IP27
2752
2753config NUMA
2754	bool "NUMA Support"
2755	depends on SYS_SUPPORTS_NUMA
2756	select SMP
2757	help
2758	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2759	  Access).  This option improves performance on systems with more
2760	  than two nodes; on two node systems it is generally better to
2761	  leave it disabled; on single node systems leave this option
2762	  disabled.
2763
2764config SYS_SUPPORTS_NUMA
2765	bool
2766
2767config HAVE_SETUP_PER_CPU_AREA
2768	def_bool y
2769	depends on NUMA
2770
2771config NEED_PER_CPU_EMBED_FIRST_CHUNK
2772	def_bool y
2773	depends on NUMA
2774
2775config RELOCATABLE
2776	bool "Relocatable kernel"
2777	depends on SYS_SUPPORTS_RELOCATABLE
2778	depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \
2779		   CPU_MIPS32_R5 || CPU_MIPS64_R5 || \
2780		   CPU_MIPS32_R6 || CPU_MIPS64_R6 || \
2781		   CPU_P5600 || CAVIUM_OCTEON_SOC || \
2782		   CPU_LOONGSON64
2783	help
2784	  This builds a kernel image that retains relocation information
2785	  so it can be loaded someplace besides the default 1MB.
2786	  The relocations make the kernel binary about 15% larger,
2787	  but are discarded at runtime
2788
2789config RELOCATION_TABLE_SIZE
2790	hex "Relocation table size"
2791	depends on RELOCATABLE
2792	range 0x0 0x01000000
2793	default "0x00200000" if CPU_LOONGSON64
2794	default "0x00100000"
2795	help
2796	  A table of relocation data will be appended to the kernel binary
2797	  and parsed at boot to fix up the relocated kernel.
2798
2799	  This option allows the amount of space reserved for the table to be
2800	  adjusted, although the default of 1Mb should be ok in most cases.
2801
2802	  The build will fail and a valid size suggested if this is too small.
2803
2804	  If unsure, leave at the default value.
2805
2806config RANDOMIZE_BASE
2807	bool "Randomize the address of the kernel image"
2808	depends on RELOCATABLE
2809	help
2810	  Randomizes the physical and virtual address at which the
2811	  kernel image is loaded, as a security feature that
2812	  deters exploit attempts relying on knowledge of the location
2813	  of kernel internals.
2814
2815	  Entropy is generated using any coprocessor 0 registers available.
2816
2817	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2818
2819	  If unsure, say N.
2820
2821config RANDOMIZE_BASE_MAX_OFFSET
2822	hex "Maximum kASLR offset" if EXPERT
2823	depends on RANDOMIZE_BASE
2824	range 0x0 0x40000000 if EVA || 64BIT
2825	range 0x0 0x08000000
2826	default "0x01000000"
2827	help
2828	  When kASLR is active, this provides the maximum offset that will
2829	  be applied to the kernel image. It should be set according to the
2830	  amount of physical RAM available in the target system minus
2831	  PHYSICAL_START and must be a power of 2.
2832
2833	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2834	  EVA or 64-bit. The default is 16Mb.
2835
2836config NODES_SHIFT
2837	int
2838	default "6"
2839	depends on NUMA
2840
2841config HW_PERF_EVENTS
2842	bool "Enable hardware performance counter support for perf events"
2843	depends on PERF_EVENTS && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64)
2844	default y
2845	help
2846	  Enable hardware performance counter support for perf events. If
2847	  disabled, perf events will use software events only.
2848
2849config DMI
2850	bool "Enable DMI scanning"
2851	depends on MACH_LOONGSON64
2852	select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
2853	default y
2854	help
2855	  Enabled scanning of DMI to identify machine quirks. Say Y
2856	  here unless you have verified that your setup is not
2857	  affected by entries in the DMI blacklist. Required by PNP
2858	  BIOS code.
2859
2860config SMP
2861	bool "Multi-Processing support"
2862	depends on SYS_SUPPORTS_SMP
2863	help
2864	  This enables support for systems with more than one CPU. If you have
2865	  a system with only one CPU, say N. If you have a system with more
2866	  than one CPU, say Y.
2867
2868	  If you say N here, the kernel will run on uni- and multiprocessor
2869	  machines, but will use only one CPU of a multiprocessor machine. If
2870	  you say Y here, the kernel will run on many, but not all,
2871	  uniprocessor machines. On a uniprocessor machine, the kernel
2872	  will run faster if you say N here.
2873
2874	  People using multiprocessor machines who say Y here should also say
2875	  Y to "Enhanced Real Time Clock Support", below.
2876
2877	  See also the SMP-HOWTO available at
2878	  <https://www.tldp.org/docs.html#howto>.
2879
2880	  If you don't know what to do here, say N.
2881
2882config HOTPLUG_CPU
2883	bool "Support for hot-pluggable CPUs"
2884	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2885	help
2886	  Say Y here to allow turning CPUs off and on. CPUs can be
2887	  controlled through /sys/devices/system/cpu.
2888	  (Note: power management support will enable this option
2889	    automatically on SMP systems. )
2890	  Say N if you want to disable CPU hotplug.
2891
2892config SMP_UP
2893	bool
2894
2895config SYS_SUPPORTS_MIPS_CMP
2896	bool
2897
2898config SYS_SUPPORTS_MIPS_CPS
2899	bool
2900
2901config SYS_SUPPORTS_SMP
2902	bool
2903
2904config NR_CPUS_DEFAULT_4
2905	bool
2906
2907config NR_CPUS_DEFAULT_8
2908	bool
2909
2910config NR_CPUS_DEFAULT_16
2911	bool
2912
2913config NR_CPUS_DEFAULT_32
2914	bool
2915
2916config NR_CPUS_DEFAULT_64
2917	bool
2918
2919config NR_CPUS
2920	int "Maximum number of CPUs (2-256)"
2921	range 2 256
2922	depends on SMP
2923	default "4" if NR_CPUS_DEFAULT_4
2924	default "8" if NR_CPUS_DEFAULT_8
2925	default "16" if NR_CPUS_DEFAULT_16
2926	default "32" if NR_CPUS_DEFAULT_32
2927	default "64" if NR_CPUS_DEFAULT_64
2928	help
2929	  This allows you to specify the maximum number of CPUs which this
2930	  kernel will support.  The maximum supported value is 32 for 32-bit
2931	  kernel and 64 for 64-bit kernels; the minimum value which makes
2932	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2933	  and 2 for all others.
2934
2935	  This is purely to save memory - each supported CPU adds
2936	  approximately eight kilobytes to the kernel image.  For best
2937	  performance should round up your number of processors to the next
2938	  power of two.
2939
2940config MIPS_PERF_SHARED_TC_COUNTERS
2941	bool
2942
2943config MIPS_NR_CPU_NR_MAP_1024
2944	bool
2945
2946config MIPS_NR_CPU_NR_MAP
2947	int
2948	depends on SMP
2949	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2950	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2951
2952#
2953# Timer Interrupt Frequency Configuration
2954#
2955
2956choice
2957	prompt "Timer frequency"
2958	default HZ_250
2959	help
2960	  Allows the configuration of the timer frequency.
2961
2962	config HZ_24
2963		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2964
2965	config HZ_48
2966		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
2967
2968	config HZ_100
2969		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
2970
2971	config HZ_128
2972		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
2973
2974	config HZ_250
2975		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
2976
2977	config HZ_256
2978		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
2979
2980	config HZ_1000
2981		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
2982
2983	config HZ_1024
2984		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
2985
2986endchoice
2987
2988config SYS_SUPPORTS_24HZ
2989	bool
2990
2991config SYS_SUPPORTS_48HZ
2992	bool
2993
2994config SYS_SUPPORTS_100HZ
2995	bool
2996
2997config SYS_SUPPORTS_128HZ
2998	bool
2999
3000config SYS_SUPPORTS_250HZ
3001	bool
3002
3003config SYS_SUPPORTS_256HZ
3004	bool
3005
3006config SYS_SUPPORTS_1000HZ
3007	bool
3008
3009config SYS_SUPPORTS_1024HZ
3010	bool
3011
3012config SYS_SUPPORTS_ARBIT_HZ
3013	bool
3014	default y if !SYS_SUPPORTS_24HZ && \
3015		     !SYS_SUPPORTS_48HZ && \
3016		     !SYS_SUPPORTS_100HZ && \
3017		     !SYS_SUPPORTS_128HZ && \
3018		     !SYS_SUPPORTS_250HZ && \
3019		     !SYS_SUPPORTS_256HZ && \
3020		     !SYS_SUPPORTS_1000HZ && \
3021		     !SYS_SUPPORTS_1024HZ
3022
3023config HZ
3024	int
3025	default 24 if HZ_24
3026	default 48 if HZ_48
3027	default 100 if HZ_100
3028	default 128 if HZ_128
3029	default 250 if HZ_250
3030	default 256 if HZ_256
3031	default 1000 if HZ_1000
3032	default 1024 if HZ_1024
3033
3034config SCHED_HRTICK
3035	def_bool HIGH_RES_TIMERS
3036
3037config KEXEC
3038	bool "Kexec system call"
3039	select KEXEC_CORE
3040	help
3041	  kexec is a system call that implements the ability to shutdown your
3042	  current kernel, and to start another kernel.  It is like a reboot
3043	  but it is independent of the system firmware.   And like a reboot
3044	  you can start any kernel with it, not just Linux.
3045
3046	  The name comes from the similarity to the exec system call.
3047
3048	  It is an ongoing process to be certain the hardware in a machine
3049	  is properly shutdown, so do not be surprised if this code does not
3050	  initially work for you.  As of this writing the exact hardware
3051	  interface is strongly in flux, so no good recommendation can be
3052	  made.
3053
3054config CRASH_DUMP
3055	bool "Kernel crash dumps"
3056	help
3057	  Generate crash dump after being started by kexec.
3058	  This should be normally only set in special crash dump kernels
3059	  which are loaded in the main kernel with kexec-tools into
3060	  a specially reserved region and then later executed after
3061	  a crash by kdump/kexec. The crash dump kernel must be compiled
3062	  to a memory address not used by the main kernel or firmware using
3063	  PHYSICAL_START.
3064
3065config PHYSICAL_START
3066	hex "Physical address where the kernel is loaded"
3067	default "0xffffffff84000000"
3068	depends on CRASH_DUMP
3069	help
3070	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
3071	  If you plan to use kernel for capturing the crash dump change
3072	  this value to start of the reserved region (the "X" value as
3073	  specified in the "crashkernel=YM@XM" command line boot parameter
3074	  passed to the panic-ed kernel).
3075
3076config MIPS_O32_FP64_SUPPORT
3077	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
3078	depends on 32BIT || MIPS32_O32
3079	help
3080	  When this is enabled, the kernel will support use of 64-bit floating
3081	  point registers with binaries using the O32 ABI along with the
3082	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
3083	  32-bit MIPS systems this support is at the cost of increasing the
3084	  size and complexity of the compiled FPU emulator. Thus if you are
3085	  running a MIPS32 system and know that none of your userland binaries
3086	  will require 64-bit floating point, you may wish to reduce the size
3087	  of your kernel & potentially improve FP emulation performance by
3088	  saying N here.
3089
3090	  Although binutils currently supports use of this flag the details
3091	  concerning its effect upon the O32 ABI in userland are still being
3092	  worked on. In order to avoid userland becoming dependent upon current
3093	  behaviour before the details have been finalised, this option should
3094	  be considered experimental and only enabled by those working upon
3095	  said details.
3096
3097	  If unsure, say N.
3098
3099config USE_OF
3100	bool
3101	select OF
3102	select OF_EARLY_FLATTREE
3103	select IRQ_DOMAIN
3104
3105config UHI_BOOT
3106	bool
3107
3108config BUILTIN_DTB
3109	bool
3110
3111choice
3112	prompt "Kernel appended dtb support" if USE_OF
3113	default MIPS_NO_APPENDED_DTB
3114
3115	config MIPS_NO_APPENDED_DTB
3116		bool "None"
3117		help
3118		  Do not enable appended dtb support.
3119
3120	config MIPS_ELF_APPENDED_DTB
3121		bool "vmlinux"
3122		help
3123		  With this option, the boot code will look for a device tree binary
3124		  DTB) included in the vmlinux ELF section .appended_dtb. By default
3125		  it is empty and the DTB can be appended using binutils command
3126		  objcopy:
3127
3128		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
3129
3130		  This is meant as a backward compatibility convenience for those
3131		  systems with a bootloader that can't be upgraded to accommodate
3132		  the documented boot protocol using a device tree.
3133
3134	config MIPS_RAW_APPENDED_DTB
3135		bool "vmlinux.bin or vmlinuz.bin"
3136		help
3137		  With this option, the boot code will look for a device tree binary
3138		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3139		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3140
3141		  This is meant as a backward compatibility convenience for those
3142		  systems with a bootloader that can't be upgraded to accommodate
3143		  the documented boot protocol using a device tree.
3144
3145		  Beware that there is very little in terms of protection against
3146		  this option being confused by leftover garbage in memory that might
3147		  look like a DTB header after a reboot if no actual DTB is appended
3148		  to vmlinux.bin.  Do not leave this option active in a production kernel
3149		  if you don't intend to always append a DTB.
3150endchoice
3151
3152choice
3153	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3154	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3155					 !MACH_LOONGSON64 && !MIPS_MALTA && \
3156					 !CAVIUM_OCTEON_SOC
3157	default MIPS_CMDLINE_FROM_BOOTLOADER
3158
3159	config MIPS_CMDLINE_FROM_DTB
3160		depends on USE_OF
3161		bool "Dtb kernel arguments if available"
3162
3163	config MIPS_CMDLINE_DTB_EXTEND
3164		depends on USE_OF
3165		bool "Extend dtb kernel arguments with bootloader arguments"
3166
3167	config MIPS_CMDLINE_FROM_BOOTLOADER
3168		bool "Bootloader kernel arguments if available"
3169
3170	config MIPS_CMDLINE_BUILTIN_EXTEND
3171		depends on CMDLINE_BOOL
3172		bool "Extend builtin kernel arguments with bootloader arguments"
3173endchoice
3174
3175endmenu
3176
3177config LOCKDEP_SUPPORT
3178	bool
3179	default y
3180
3181config STACKTRACE_SUPPORT
3182	bool
3183	default y
3184
3185config PGTABLE_LEVELS
3186	int
3187	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3188	default 3 if 64BIT && !PAGE_SIZE_64KB
3189	default 2
3190
3191config MIPS_AUTO_PFN_OFFSET
3192	bool
3193
3194menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3195
3196config PCI_DRIVERS_GENERIC
3197	select PCI_DOMAINS_GENERIC if PCI
3198	bool
3199
3200config PCI_DRIVERS_LEGACY
3201	def_bool !PCI_DRIVERS_GENERIC
3202	select NO_GENERIC_PCI_IOPORT_MAP
3203	select PCI_DOMAINS if PCI
3204
3205#
3206# ISA support is now enabled via select.  Too many systems still have the one
3207# or other ISA chip on the board that users don't know about so don't expect
3208# users to choose the right thing ...
3209#
3210config ISA
3211	bool
3212
3213config TC
3214	bool "TURBOchannel support"
3215	depends on MACH_DECSTATION
3216	help
3217	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3218	  processors.  TURBOchannel programming specifications are available
3219	  at:
3220	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3221	  and:
3222	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3223	  Linux driver support status is documented at:
3224	  <http://www.linux-mips.org/wiki/DECstation>
3225
3226config MMU
3227	bool
3228	default y
3229
3230config ARCH_MMAP_RND_BITS_MIN
3231	default 12 if 64BIT
3232	default 8
3233
3234config ARCH_MMAP_RND_BITS_MAX
3235	default 18 if 64BIT
3236	default 15
3237
3238config ARCH_MMAP_RND_COMPAT_BITS_MIN
3239	default 8
3240
3241config ARCH_MMAP_RND_COMPAT_BITS_MAX
3242	default 15
3243
3244config I8253
3245	bool
3246	select CLKSRC_I8253
3247	select CLKEVT_I8253
3248	select MIPS_EXTERNAL_TIMER
3249endmenu
3250
3251config TRAD_SIGNALS
3252	bool
3253
3254config MIPS32_COMPAT
3255	bool
3256
3257config COMPAT
3258	bool
3259
3260config SYSVIPC_COMPAT
3261	bool
3262
3263config MIPS32_O32
3264	bool "Kernel support for o32 binaries"
3265	depends on 64BIT
3266	select ARCH_WANT_OLD_COMPAT_IPC
3267	select COMPAT
3268	select MIPS32_COMPAT
3269	select SYSVIPC_COMPAT if SYSVIPC
3270	help
3271	  Select this option if you want to run o32 binaries.  These are pure
3272	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3273	  existing binaries are in this format.
3274
3275	  If unsure, say Y.
3276
3277config MIPS32_N32
3278	bool "Kernel support for n32 binaries"
3279	depends on 64BIT
3280	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3281	select COMPAT
3282	select MIPS32_COMPAT
3283	select SYSVIPC_COMPAT if SYSVIPC
3284	help
3285	  Select this option if you want to run n32 binaries.  These are
3286	  64-bit binaries using 32-bit quantities for addressing and certain
3287	  data that would normally be 64-bit.  They are used in special
3288	  cases.
3289
3290	  If unsure, say N.
3291
3292menu "Power management options"
3293
3294config ARCH_HIBERNATION_POSSIBLE
3295	def_bool y
3296	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3297
3298config ARCH_SUSPEND_POSSIBLE
3299	def_bool y
3300	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3301
3302source "kernel/power/Kconfig"
3303
3304endmenu
3305
3306config MIPS_EXTERNAL_TIMER
3307	bool
3308
3309menu "CPU Power Management"
3310
3311if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3312source "drivers/cpufreq/Kconfig"
3313endif
3314
3315source "drivers/cpuidle/Kconfig"
3316
3317endmenu
3318
3319source "drivers/firmware/Kconfig"
3320
3321source "arch/mips/kvm/Kconfig"
3322
3323source "arch/mips/vdso/Kconfig"
3324