xref: /linux/arch/mips/Kconfig (revision ee1f9d19143257da999fcdc86eda7bd386f4907e)
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 HAVE_ARCH_COMPILER_H
51	select HAVE_ARCH_JUMP_LABEL
52	select HAVE_ARCH_KGDB if MIPS_FP_SUPPORT
53	select HAVE_ARCH_MMAP_RND_BITS if MMU
54	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
55	select HAVE_ARCH_SECCOMP_FILTER
56	select HAVE_ARCH_TRACEHOOK
57	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
58	select HAVE_ASM_MODVERSIONS
59	select HAVE_CBPF_JIT if !64BIT && !CPU_MICROMIPS
60	select HAVE_CONTEXT_TRACKING
61	select HAVE_TIF_NOHZ
62	select HAVE_C_RECORDMCOUNT
63	select HAVE_DEBUG_KMEMLEAK
64	select HAVE_DEBUG_STACKOVERFLOW
65	select HAVE_DMA_CONTIGUOUS
66	select HAVE_DYNAMIC_FTRACE
67	select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2
68	select HAVE_EXIT_THREAD
69	select HAVE_FAST_GUP
70	select HAVE_FTRACE_MCOUNT_RECORD
71	select HAVE_FUNCTION_GRAPH_TRACER
72	select HAVE_FUNCTION_TRACER
73	select HAVE_GCC_PLUGINS
74	select HAVE_GENERIC_VDSO
75	select HAVE_IOREMAP_PROT
76	select HAVE_IRQ_EXIT_ON_IRQ_STACK
77	select HAVE_IRQ_TIME_ACCOUNTING
78	select HAVE_KPROBES
79	select HAVE_KRETPROBES
80	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
81	select HAVE_MOD_ARCH_SPECIFIC
82	select HAVE_NMI
83	select HAVE_PERF_EVENTS
84	select HAVE_PERF_REGS
85	select HAVE_PERF_USER_STACK_DUMP
86	select HAVE_REGS_AND_STACK_ACCESS_API
87	select HAVE_RSEQ
88	select HAVE_SPARSE_SYSCALL_NR
89	select HAVE_STACKPROTECTOR
90	select HAVE_SYSCALL_TRACEPOINTS
91	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
92	select IRQ_FORCED_THREADING
93	select ISA if EISA
94	select MODULES_USE_ELF_REL if MODULES
95	select MODULES_USE_ELF_RELA if MODULES && 64BIT
96	select PERF_USE_VMALLOC
97	select PCI_MSI_ARCH_FALLBACKS if PCI_MSI
98	select RTC_LIB
99	select SYSCTL_EXCEPTION_TRACE
100	select TRACE_IRQFLAGS_SUPPORT
101	select VIRT_TO_BUS
102	select ARCH_HAS_ELFCORE_COMPAT
103
104config MIPS_FIXUP_BIGPHYS_ADDR
105	bool
106
107config MIPS_GENERIC
108	bool
109
110config MACH_INGENIC
111	bool
112	select SYS_SUPPORTS_32BIT_KERNEL
113	select SYS_SUPPORTS_LITTLE_ENDIAN
114	select SYS_SUPPORTS_ZBOOT
115	select DMA_NONCOHERENT
116	select ARCH_HAS_SYNC_DMA_FOR_CPU
117	select IRQ_MIPS_CPU
118	select PINCTRL
119	select GPIOLIB
120	select COMMON_CLK
121	select GENERIC_IRQ_CHIP
122	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
123	select USE_OF
124	select CPU_SUPPORTS_CPUFREQ
125	select MIPS_EXTERNAL_TIMER
126
127menu "Machine selection"
128
129choice
130	prompt "System type"
131	default MIPS_GENERIC_KERNEL
132
133config MIPS_GENERIC_KERNEL
134	bool "Generic board-agnostic MIPS kernel"
135	select ARCH_HAS_SETUP_DMA_OPS
136	select MIPS_GENERIC
137	select BOOT_RAW
138	select BUILTIN_DTB
139	select CEVT_R4K
140	select CLKSRC_MIPS_GIC
141	select COMMON_CLK
142	select CPU_MIPSR2_IRQ_EI
143	select CPU_MIPSR2_IRQ_VI
144	select CSRC_R4K
145	select DMA_NONCOHERENT
146	select HAVE_PCI
147	select IRQ_MIPS_CPU
148	select MIPS_AUTO_PFN_OFFSET
149	select MIPS_CPU_SCACHE
150	select MIPS_GIC
151	select MIPS_L1_CACHE_SHIFT_7
152	select NO_EXCEPT_FILL
153	select PCI_DRIVERS_GENERIC
154	select SMP_UP if SMP
155	select SWAP_IO_SPACE
156	select SYS_HAS_CPU_MIPS32_R1
157	select SYS_HAS_CPU_MIPS32_R2
158	select SYS_HAS_CPU_MIPS32_R6
159	select SYS_HAS_CPU_MIPS64_R1
160	select SYS_HAS_CPU_MIPS64_R2
161	select SYS_HAS_CPU_MIPS64_R6
162	select SYS_SUPPORTS_32BIT_KERNEL
163	select SYS_SUPPORTS_64BIT_KERNEL
164	select SYS_SUPPORTS_BIG_ENDIAN
165	select SYS_SUPPORTS_HIGHMEM
166	select SYS_SUPPORTS_LITTLE_ENDIAN
167	select SYS_SUPPORTS_MICROMIPS
168	select SYS_SUPPORTS_MIPS16
169	select SYS_SUPPORTS_MIPS_CPS
170	select SYS_SUPPORTS_MULTITHREADING
171	select SYS_SUPPORTS_RELOCATABLE
172	select SYS_SUPPORTS_SMARTMIPS
173	select SYS_SUPPORTS_ZBOOT
174	select UHI_BOOT
175	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
176	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
177	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
178	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
179	select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
180	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
181	select USE_OF
182	help
183	  Select this to build a kernel which aims to support multiple boards,
184	  generally using a flattened device tree passed from the bootloader
185	  using the boot protocol defined in the UHI (Unified Hosting
186	  Interface) specification.
187
188config MIPS_ALCHEMY
189	bool "Alchemy processor based machines"
190	select PHYS_ADDR_T_64BIT
191	select CEVT_R4K
192	select CSRC_R4K
193	select IRQ_MIPS_CPU
194	select DMA_NONCOHERENT		# Au1000,1500,1100 aren't, rest is
195	select MIPS_FIXUP_BIGPHYS_ADDR if PCI
196	select SYS_HAS_CPU_MIPS32_R1
197	select SYS_SUPPORTS_32BIT_KERNEL
198	select SYS_SUPPORTS_APM_EMULATION
199	select GPIOLIB
200	select SYS_SUPPORTS_ZBOOT
201	select COMMON_CLK
202
203config AR7
204	bool "Texas Instruments AR7"
205	select BOOT_ELF32
206	select COMMON_CLK
207	select DMA_NONCOHERENT
208	select CEVT_R4K
209	select CSRC_R4K
210	select IRQ_MIPS_CPU
211	select NO_EXCEPT_FILL
212	select SWAP_IO_SPACE
213	select SYS_HAS_CPU_MIPS32_R1
214	select SYS_HAS_EARLY_PRINTK
215	select SYS_SUPPORTS_32BIT_KERNEL
216	select SYS_SUPPORTS_LITTLE_ENDIAN
217	select SYS_SUPPORTS_MIPS16
218	select SYS_SUPPORTS_ZBOOT_UART16550
219	select GPIOLIB
220	select VLYNQ
221	help
222	  Support for the Texas Instruments AR7 System-on-a-Chip
223	  family: TNETD7100, 7200 and 7300.
224
225config ATH25
226	bool "Atheros AR231x/AR531x SoC support"
227	select CEVT_R4K
228	select CSRC_R4K
229	select DMA_NONCOHERENT
230	select IRQ_MIPS_CPU
231	select IRQ_DOMAIN
232	select SYS_HAS_CPU_MIPS32_R1
233	select SYS_SUPPORTS_BIG_ENDIAN
234	select SYS_SUPPORTS_32BIT_KERNEL
235	select SYS_HAS_EARLY_PRINTK
236	help
237	  Support for Atheros AR231x and Atheros AR531x based boards
238
239config ATH79
240	bool "Atheros AR71XX/AR724X/AR913X based boards"
241	select ARCH_HAS_RESET_CONTROLLER
242	select BOOT_RAW
243	select CEVT_R4K
244	select CSRC_R4K
245	select DMA_NONCOHERENT
246	select GPIOLIB
247	select PINCTRL
248	select COMMON_CLK
249	select IRQ_MIPS_CPU
250	select SYS_HAS_CPU_MIPS32_R2
251	select SYS_HAS_EARLY_PRINTK
252	select SYS_SUPPORTS_32BIT_KERNEL
253	select SYS_SUPPORTS_BIG_ENDIAN
254	select SYS_SUPPORTS_MIPS16
255	select SYS_SUPPORTS_ZBOOT_UART_PROM
256	select USE_OF
257	select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
258	help
259	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
260
261config BMIPS_GENERIC
262	bool "Broadcom Generic BMIPS kernel"
263	select ARCH_HAS_RESET_CONTROLLER
264	select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
265	select ARCH_HAS_PHYS_TO_DMA
266	select BOOT_RAW
267	select NO_EXCEPT_FILL
268	select USE_OF
269	select CEVT_R4K
270	select CSRC_R4K
271	select SYNC_R4K
272	select COMMON_CLK
273	select BCM6345_L1_IRQ
274	select BCM7038_L1_IRQ
275	select BCM7120_L2_IRQ
276	select BRCMSTB_L2_IRQ
277	select IRQ_MIPS_CPU
278	select DMA_NONCOHERENT
279	select SYS_SUPPORTS_32BIT_KERNEL
280	select SYS_SUPPORTS_LITTLE_ENDIAN
281	select SYS_SUPPORTS_BIG_ENDIAN
282	select SYS_SUPPORTS_HIGHMEM
283	select SYS_HAS_CPU_BMIPS32_3300
284	select SYS_HAS_CPU_BMIPS4350
285	select SYS_HAS_CPU_BMIPS4380
286	select SYS_HAS_CPU_BMIPS5000
287	select SWAP_IO_SPACE
288	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
289	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
290	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
291	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
292	select HARDIRQS_SW_RESEND
293	help
294	  Build a generic DT-based kernel image that boots on select
295	  BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
296	  box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
297	  must be set appropriately for your board.
298
299config BCM47XX
300	bool "Broadcom BCM47XX based boards"
301	select BOOT_RAW
302	select CEVT_R4K
303	select CSRC_R4K
304	select DMA_NONCOHERENT
305	select HAVE_PCI
306	select IRQ_MIPS_CPU
307	select SYS_HAS_CPU_MIPS32_R1
308	select NO_EXCEPT_FILL
309	select SYS_SUPPORTS_32BIT_KERNEL
310	select SYS_SUPPORTS_LITTLE_ENDIAN
311	select SYS_SUPPORTS_MIPS16
312	select SYS_SUPPORTS_ZBOOT
313	select SYS_HAS_EARLY_PRINTK
314	select USE_GENERIC_EARLY_PRINTK_8250
315	select GPIOLIB
316	select LEDS_GPIO_REGISTER
317	select BCM47XX_NVRAM
318	select BCM47XX_SPROM
319	select BCM47XX_SSB if !BCM47XX_BCMA
320	help
321	  Support for BCM47XX based boards
322
323config BCM63XX
324	bool "Broadcom BCM63XX based boards"
325	select BOOT_RAW
326	select CEVT_R4K
327	select CSRC_R4K
328	select SYNC_R4K
329	select DMA_NONCOHERENT
330	select IRQ_MIPS_CPU
331	select SYS_SUPPORTS_32BIT_KERNEL
332	select SYS_SUPPORTS_BIG_ENDIAN
333	select SYS_HAS_EARLY_PRINTK
334	select SWAP_IO_SPACE
335	select GPIOLIB
336	select MIPS_L1_CACHE_SHIFT_4
337	select HAVE_LEGACY_CLK
338	help
339	  Support for BCM63XX based boards
340
341config MIPS_COBALT
342	bool "Cobalt Server"
343	select CEVT_R4K
344	select CSRC_R4K
345	select CEVT_GT641XX
346	select DMA_NONCOHERENT
347	select FORCE_PCI
348	select I8253
349	select I8259
350	select IRQ_MIPS_CPU
351	select IRQ_GT641XX
352	select PCI_GT64XXX_PCI0
353	select SYS_HAS_CPU_NEVADA
354	select SYS_HAS_EARLY_PRINTK
355	select SYS_SUPPORTS_32BIT_KERNEL
356	select SYS_SUPPORTS_64BIT_KERNEL
357	select SYS_SUPPORTS_LITTLE_ENDIAN
358	select USE_GENERIC_EARLY_PRINTK_8250
359
360config MACH_DECSTATION
361	bool "DECstations"
362	select BOOT_ELF32
363	select CEVT_DS1287
364	select CEVT_R4K if CPU_R4X00
365	select CSRC_IOASIC
366	select CSRC_R4K if CPU_R4X00
367	select CPU_DADDI_WORKAROUNDS if 64BIT
368	select CPU_R4000_WORKAROUNDS if 64BIT
369	select CPU_R4400_WORKAROUNDS if 64BIT
370	select DMA_NONCOHERENT
371	select NO_IOPORT_MAP
372	select IRQ_MIPS_CPU
373	select SYS_HAS_CPU_R3000
374	select SYS_HAS_CPU_R4X00
375	select SYS_SUPPORTS_32BIT_KERNEL
376	select SYS_SUPPORTS_64BIT_KERNEL
377	select SYS_SUPPORTS_LITTLE_ENDIAN
378	select SYS_SUPPORTS_128HZ
379	select SYS_SUPPORTS_256HZ
380	select SYS_SUPPORTS_1024HZ
381	select MIPS_L1_CACHE_SHIFT_4
382	help
383	  This enables support for DEC's MIPS based workstations.  For details
384	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
385	  DECstation porting pages on <http://decstation.unix-ag.org/>.
386
387	  If you have one of the following DECstation Models you definitely
388	  want to choose R4xx0 for the CPU Type:
389
390		DECstation 5000/50
391		DECstation 5000/150
392		DECstation 5000/260
393		DECsystem 5900/260
394
395	  otherwise choose R3000.
396
397config MACH_JAZZ
398	bool "Jazz family of machines"
399	select ARC_MEMORY
400	select ARC_PROMLIB
401	select ARCH_MIGHT_HAVE_PC_PARPORT
402	select ARCH_MIGHT_HAVE_PC_SERIO
403	select DMA_OPS
404	select FW_ARC
405	select FW_ARC32
406	select ARCH_MAY_HAVE_PC_FDC
407	select CEVT_R4K
408	select CSRC_R4K
409	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
410	select GENERIC_ISA_DMA
411	select HAVE_PCSPKR_PLATFORM
412	select IRQ_MIPS_CPU
413	select I8253
414	select I8259
415	select ISA
416	select SYS_HAS_CPU_R4X00
417	select SYS_SUPPORTS_32BIT_KERNEL
418	select SYS_SUPPORTS_64BIT_KERNEL
419	select SYS_SUPPORTS_100HZ
420	select SYS_SUPPORTS_LITTLE_ENDIAN
421	help
422	  This a family of machines based on the MIPS R4030 chipset which was
423	  used by several vendors to build RISC/os and Windows NT workstations.
424	  Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
425	  Olivetti M700-10 workstations.
426
427config MACH_INGENIC_SOC
428	bool "Ingenic SoC based machines"
429	select MIPS_GENERIC
430	select MACH_INGENIC
431	select SYS_SUPPORTS_ZBOOT_UART16550
432	select CPU_SUPPORTS_CPUFREQ
433	select MIPS_EXTERNAL_TIMER
434
435config LANTIQ
436	bool "Lantiq based platforms"
437	select DMA_NONCOHERENT
438	select IRQ_MIPS_CPU
439	select CEVT_R4K
440	select CSRC_R4K
441	select SYS_HAS_CPU_MIPS32_R1
442	select SYS_HAS_CPU_MIPS32_R2
443	select SYS_SUPPORTS_BIG_ENDIAN
444	select SYS_SUPPORTS_32BIT_KERNEL
445	select SYS_SUPPORTS_MIPS16
446	select SYS_SUPPORTS_MULTITHREADING
447	select SYS_SUPPORTS_VPE_LOADER
448	select SYS_HAS_EARLY_PRINTK
449	select GPIOLIB
450	select SWAP_IO_SPACE
451	select BOOT_RAW
452	select HAVE_LEGACY_CLK
453	select USE_OF
454	select PINCTRL
455	select PINCTRL_LANTIQ
456	select ARCH_HAS_RESET_CONTROLLER
457	select RESET_CONTROLLER
458
459config MACH_LOONGSON32
460	bool "Loongson 32-bit family of machines"
461	select SYS_SUPPORTS_ZBOOT
462	help
463	  This enables support for the Loongson-1 family of machines.
464
465	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
466	  the Institute of Computing Technology (ICT), Chinese Academy of
467	  Sciences (CAS).
468
469config MACH_LOONGSON2EF
470	bool "Loongson-2E/F family of machines"
471	select SYS_SUPPORTS_ZBOOT
472	help
473	  This enables the support of early Loongson-2E/F family of machines.
474
475config MACH_LOONGSON64
476	bool "Loongson 64-bit family of machines"
477	select ARCH_SPARSEMEM_ENABLE
478	select ARCH_MIGHT_HAVE_PC_PARPORT
479	select ARCH_MIGHT_HAVE_PC_SERIO
480	select GENERIC_ISA_DMA_SUPPORT_BROKEN
481	select BOOT_ELF32
482	select BOARD_SCACHE
483	select CSRC_R4K
484	select CEVT_R4K
485	select CPU_HAS_WB
486	select FORCE_PCI
487	select ISA
488	select I8259
489	select IRQ_MIPS_CPU
490	select NO_EXCEPT_FILL
491	select NR_CPUS_DEFAULT_64
492	select USE_GENERIC_EARLY_PRINTK_8250
493	select PCI_DRIVERS_GENERIC
494	select SYS_HAS_CPU_LOONGSON64
495	select SYS_HAS_EARLY_PRINTK
496	select SYS_SUPPORTS_SMP
497	select SYS_SUPPORTS_HOTPLUG_CPU
498	select SYS_SUPPORTS_NUMA
499	select SYS_SUPPORTS_64BIT_KERNEL
500	select SYS_SUPPORTS_HIGHMEM
501	select SYS_SUPPORTS_LITTLE_ENDIAN
502	select SYS_SUPPORTS_ZBOOT
503	select SYS_SUPPORTS_RELOCATABLE
504	select ZONE_DMA32
505	select COMMON_CLK
506	select USE_OF
507	select BUILTIN_DTB
508	select PCI_HOST_GENERIC
509	help
510	  This enables the support of Loongson-2/3 family of machines.
511
512	  Loongson-2 and Loongson-3 are 64-bit general-purpose processors with
513	  GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E
514	  and Loongson-2F which will be removed), developed by the Institute
515	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS).
516
517config MIPS_MALTA
518	bool "MIPS Malta board"
519	select ARCH_MAY_HAVE_PC_FDC
520	select ARCH_MIGHT_HAVE_PC_PARPORT
521	select ARCH_MIGHT_HAVE_PC_SERIO
522	select BOOT_ELF32
523	select BOOT_RAW
524	select BUILTIN_DTB
525	select CEVT_R4K
526	select CLKSRC_MIPS_GIC
527	select COMMON_CLK
528	select CSRC_R4K
529	select DMA_NONCOHERENT
530	select GENERIC_ISA_DMA
531	select HAVE_PCSPKR_PLATFORM
532	select HAVE_PCI
533	select I8253
534	select I8259
535	select IRQ_MIPS_CPU
536	select MIPS_BONITO64
537	select MIPS_CPU_SCACHE
538	select MIPS_GIC
539	select MIPS_L1_CACHE_SHIFT_6
540	select MIPS_MSC
541	select PCI_GT64XXX_PCI0
542	select SMP_UP if SMP
543	select SWAP_IO_SPACE
544	select SYS_HAS_CPU_MIPS32_R1
545	select SYS_HAS_CPU_MIPS32_R2
546	select SYS_HAS_CPU_MIPS32_R3_5
547	select SYS_HAS_CPU_MIPS32_R5
548	select SYS_HAS_CPU_MIPS32_R6
549	select SYS_HAS_CPU_MIPS64_R1
550	select SYS_HAS_CPU_MIPS64_R2
551	select SYS_HAS_CPU_MIPS64_R6
552	select SYS_HAS_CPU_NEVADA
553	select SYS_HAS_CPU_RM7000
554	select SYS_SUPPORTS_32BIT_KERNEL
555	select SYS_SUPPORTS_64BIT_KERNEL
556	select SYS_SUPPORTS_BIG_ENDIAN
557	select SYS_SUPPORTS_HIGHMEM
558	select SYS_SUPPORTS_LITTLE_ENDIAN
559	select SYS_SUPPORTS_MICROMIPS
560	select SYS_SUPPORTS_MIPS16
561	select SYS_SUPPORTS_MIPS_CMP
562	select SYS_SUPPORTS_MIPS_CPS
563	select SYS_SUPPORTS_MULTITHREADING
564	select SYS_SUPPORTS_RELOCATABLE
565	select SYS_SUPPORTS_SMARTMIPS
566	select SYS_SUPPORTS_VPE_LOADER
567	select SYS_SUPPORTS_ZBOOT
568	select USE_OF
569	select WAR_ICACHE_REFILLS
570	select ZONE_DMA32 if 64BIT
571	help
572	  This enables support for the MIPS Technologies Malta evaluation
573	  board.
574
575config MACH_PIC32
576	bool "Microchip PIC32 Family"
577	help
578	  This enables support for the Microchip PIC32 family of platforms.
579
580	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
581	  microcontrollers.
582
583config MACH_VR41XX
584	bool "NEC VR4100 series based machines"
585	select CEVT_R4K
586	select CSRC_R4K
587	select SYS_HAS_CPU_VR41XX
588	select SYS_SUPPORTS_MIPS16
589	select GPIOLIB
590
591config MACH_NINTENDO64
592	bool "Nintendo 64 console"
593	select CEVT_R4K
594	select CSRC_R4K
595	select SYS_HAS_CPU_R4300
596	select SYS_SUPPORTS_BIG_ENDIAN
597	select SYS_SUPPORTS_ZBOOT
598	select SYS_SUPPORTS_32BIT_KERNEL
599	select SYS_SUPPORTS_64BIT_KERNEL
600	select DMA_NONCOHERENT
601	select IRQ_MIPS_CPU
602
603config RALINK
604	bool "Ralink based machines"
605	select CEVT_R4K
606	select COMMON_CLK
607	select CSRC_R4K
608	select BOOT_RAW
609	select DMA_NONCOHERENT
610	select IRQ_MIPS_CPU
611	select USE_OF
612	select SYS_HAS_CPU_MIPS32_R1
613	select SYS_HAS_CPU_MIPS32_R2
614	select SYS_SUPPORTS_32BIT_KERNEL
615	select SYS_SUPPORTS_LITTLE_ENDIAN
616	select SYS_SUPPORTS_MIPS16
617	select SYS_SUPPORTS_ZBOOT
618	select SYS_HAS_EARLY_PRINTK
619	select ARCH_HAS_RESET_CONTROLLER
620	select RESET_CONTROLLER
621
622config MACH_REALTEK_RTL
623	bool "Realtek RTL838x/RTL839x based machines"
624	select MIPS_GENERIC
625	select DMA_NONCOHERENT
626	select IRQ_MIPS_CPU
627	select CSRC_R4K
628	select CEVT_R4K
629	select SYS_HAS_CPU_MIPS32_R1
630	select SYS_HAS_CPU_MIPS32_R2
631	select SYS_SUPPORTS_BIG_ENDIAN
632	select SYS_SUPPORTS_32BIT_KERNEL
633	select SYS_SUPPORTS_MIPS16
634	select SYS_SUPPORTS_MULTITHREADING
635	select SYS_SUPPORTS_VPE_LOADER
636	select SYS_HAS_EARLY_PRINTK
637	select SYS_HAS_EARLY_PRINTK_8250
638	select USE_GENERIC_EARLY_PRINTK_8250
639	select BOOT_RAW
640	select PINCTRL
641	select USE_OF
642
643config SGI_IP22
644	bool "SGI IP22 (Indy/Indigo2)"
645	select ARC_MEMORY
646	select ARC_PROMLIB
647	select FW_ARC
648	select FW_ARC32
649	select ARCH_MIGHT_HAVE_PC_SERIO
650	select BOOT_ELF32
651	select CEVT_R4K
652	select CSRC_R4K
653	select DEFAULT_SGI_PARTITION
654	select DMA_NONCOHERENT
655	select HAVE_EISA
656	select I8253
657	select I8259
658	select IP22_CPU_SCACHE
659	select IRQ_MIPS_CPU
660	select GENERIC_ISA_DMA_SUPPORT_BROKEN
661	select SGI_HAS_I8042
662	select SGI_HAS_INDYDOG
663	select SGI_HAS_HAL2
664	select SGI_HAS_SEEQ
665	select SGI_HAS_WD93
666	select SGI_HAS_ZILOG
667	select SWAP_IO_SPACE
668	select SYS_HAS_CPU_R4X00
669	select SYS_HAS_CPU_R5000
670	select SYS_HAS_EARLY_PRINTK
671	select SYS_SUPPORTS_32BIT_KERNEL
672	select SYS_SUPPORTS_64BIT_KERNEL
673	select SYS_SUPPORTS_BIG_ENDIAN
674	select WAR_R4600_V1_INDEX_ICACHEOP
675	select WAR_R4600_V1_HIT_CACHEOP
676	select WAR_R4600_V2_HIT_CACHEOP
677	select MIPS_L1_CACHE_SHIFT_7
678	help
679	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
680	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
681	  that runs on these, say Y here.
682
683config SGI_IP27
684	bool "SGI IP27 (Origin200/2000)"
685	select ARCH_HAS_PHYS_TO_DMA
686	select ARCH_SPARSEMEM_ENABLE
687	select FW_ARC
688	select FW_ARC64
689	select ARC_CMDLINE_ONLY
690	select BOOT_ELF64
691	select DEFAULT_SGI_PARTITION
692	select FORCE_PCI
693	select SYS_HAS_EARLY_PRINTK
694	select HAVE_PCI
695	select IRQ_MIPS_CPU
696	select IRQ_DOMAIN_HIERARCHY
697	select NR_CPUS_DEFAULT_64
698	select PCI_DRIVERS_GENERIC
699	select PCI_XTALK_BRIDGE
700	select SYS_HAS_CPU_R10000
701	select SYS_SUPPORTS_64BIT_KERNEL
702	select SYS_SUPPORTS_BIG_ENDIAN
703	select SYS_SUPPORTS_NUMA
704	select SYS_SUPPORTS_SMP
705	select WAR_R10000_LLSC
706	select MIPS_L1_CACHE_SHIFT_7
707	select NUMA
708	help
709	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
710	  workstations.  To compile a Linux kernel that runs on these, say Y
711	  here.
712
713config SGI_IP28
714	bool "SGI IP28 (Indigo2 R10k)"
715	select ARC_MEMORY
716	select ARC_PROMLIB
717	select FW_ARC
718	select FW_ARC64
719	select ARCH_MIGHT_HAVE_PC_SERIO
720	select BOOT_ELF64
721	select CEVT_R4K
722	select CSRC_R4K
723	select DEFAULT_SGI_PARTITION
724	select DMA_NONCOHERENT
725	select GENERIC_ISA_DMA_SUPPORT_BROKEN
726	select IRQ_MIPS_CPU
727	select HAVE_EISA
728	select I8253
729	select I8259
730	select SGI_HAS_I8042
731	select SGI_HAS_INDYDOG
732	select SGI_HAS_HAL2
733	select SGI_HAS_SEEQ
734	select SGI_HAS_WD93
735	select SGI_HAS_ZILOG
736	select SWAP_IO_SPACE
737	select SYS_HAS_CPU_R10000
738	select SYS_HAS_EARLY_PRINTK
739	select SYS_SUPPORTS_64BIT_KERNEL
740	select SYS_SUPPORTS_BIG_ENDIAN
741	select WAR_R10000_LLSC
742	select MIPS_L1_CACHE_SHIFT_7
743	help
744	  This is the SGI Indigo2 with R10000 processor.  To compile a Linux
745	  kernel that runs on these, say Y here.
746
747config SGI_IP30
748	bool "SGI IP30 (Octane/Octane2)"
749	select ARCH_HAS_PHYS_TO_DMA
750	select FW_ARC
751	select FW_ARC64
752	select BOOT_ELF64
753	select CEVT_R4K
754	select CSRC_R4K
755	select FORCE_PCI
756	select SYNC_R4K if SMP
757	select ZONE_DMA32
758	select HAVE_PCI
759	select IRQ_MIPS_CPU
760	select IRQ_DOMAIN_HIERARCHY
761	select NR_CPUS_DEFAULT_2
762	select PCI_DRIVERS_GENERIC
763	select PCI_XTALK_BRIDGE
764	select SYS_HAS_EARLY_PRINTK
765	select SYS_HAS_CPU_R10000
766	select SYS_SUPPORTS_64BIT_KERNEL
767	select SYS_SUPPORTS_BIG_ENDIAN
768	select SYS_SUPPORTS_SMP
769	select WAR_R10000_LLSC
770	select MIPS_L1_CACHE_SHIFT_7
771	select ARC_MEMORY
772	help
773	  These are the SGI Octane and Octane2 graphics workstations.  To
774	  compile a Linux kernel that runs on these, say Y here.
775
776config SGI_IP32
777	bool "SGI IP32 (O2)"
778	select ARC_MEMORY
779	select ARC_PROMLIB
780	select ARCH_HAS_PHYS_TO_DMA
781	select FW_ARC
782	select FW_ARC32
783	select BOOT_ELF32
784	select CEVT_R4K
785	select CSRC_R4K
786	select DMA_NONCOHERENT
787	select HAVE_PCI
788	select IRQ_MIPS_CPU
789	select R5000_CPU_SCACHE
790	select RM7000_CPU_SCACHE
791	select SYS_HAS_CPU_R5000
792	select SYS_HAS_CPU_R10000 if BROKEN
793	select SYS_HAS_CPU_RM7000
794	select SYS_HAS_CPU_NEVADA
795	select SYS_SUPPORTS_64BIT_KERNEL
796	select SYS_SUPPORTS_BIG_ENDIAN
797	select WAR_ICACHE_REFILLS
798	help
799	  If you want this kernel to run on SGI O2 workstation, say Y here.
800
801config SIBYTE_CRHINE
802	bool "Sibyte BCM91120C-CRhine"
803	select BOOT_ELF32
804	select SIBYTE_BCM1120
805	select SWAP_IO_SPACE
806	select SYS_HAS_CPU_SB1
807	select SYS_SUPPORTS_BIG_ENDIAN
808	select SYS_SUPPORTS_LITTLE_ENDIAN
809
810config SIBYTE_CARMEL
811	bool "Sibyte BCM91120x-Carmel"
812	select BOOT_ELF32
813	select SIBYTE_BCM1120
814	select SWAP_IO_SPACE
815	select SYS_HAS_CPU_SB1
816	select SYS_SUPPORTS_BIG_ENDIAN
817	select SYS_SUPPORTS_LITTLE_ENDIAN
818
819config SIBYTE_CRHONE
820	bool "Sibyte BCM91125C-CRhone"
821	select BOOT_ELF32
822	select SIBYTE_BCM1125
823	select SWAP_IO_SPACE
824	select SYS_HAS_CPU_SB1
825	select SYS_SUPPORTS_BIG_ENDIAN
826	select SYS_SUPPORTS_HIGHMEM
827	select SYS_SUPPORTS_LITTLE_ENDIAN
828
829config SIBYTE_RHONE
830	bool "Sibyte BCM91125E-Rhone"
831	select BOOT_ELF32
832	select SIBYTE_BCM1125H
833	select SWAP_IO_SPACE
834	select SYS_HAS_CPU_SB1
835	select SYS_SUPPORTS_BIG_ENDIAN
836	select SYS_SUPPORTS_LITTLE_ENDIAN
837
838config SIBYTE_SWARM
839	bool "Sibyte BCM91250A-SWARM"
840	select BOOT_ELF32
841	select HAVE_PATA_PLATFORM
842	select SIBYTE_SB1250
843	select SWAP_IO_SPACE
844	select SYS_HAS_CPU_SB1
845	select SYS_SUPPORTS_BIG_ENDIAN
846	select SYS_SUPPORTS_HIGHMEM
847	select SYS_SUPPORTS_LITTLE_ENDIAN
848	select ZONE_DMA32 if 64BIT
849	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
850
851config SIBYTE_LITTLESUR
852	bool "Sibyte BCM91250C2-LittleSur"
853	select BOOT_ELF32
854	select HAVE_PATA_PLATFORM
855	select SIBYTE_SB1250
856	select SWAP_IO_SPACE
857	select SYS_HAS_CPU_SB1
858	select SYS_SUPPORTS_BIG_ENDIAN
859	select SYS_SUPPORTS_HIGHMEM
860	select SYS_SUPPORTS_LITTLE_ENDIAN
861	select ZONE_DMA32 if 64BIT
862
863config SIBYTE_SENTOSA
864	bool "Sibyte BCM91250E-Sentosa"
865	select BOOT_ELF32
866	select SIBYTE_SB1250
867	select SWAP_IO_SPACE
868	select SYS_HAS_CPU_SB1
869	select SYS_SUPPORTS_BIG_ENDIAN
870	select SYS_SUPPORTS_LITTLE_ENDIAN
871	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
872
873config SIBYTE_BIGSUR
874	bool "Sibyte BCM91480B-BigSur"
875	select BOOT_ELF32
876	select NR_CPUS_DEFAULT_4
877	select SIBYTE_BCM1x80
878	select SWAP_IO_SPACE
879	select SYS_HAS_CPU_SB1
880	select SYS_SUPPORTS_BIG_ENDIAN
881	select SYS_SUPPORTS_HIGHMEM
882	select SYS_SUPPORTS_LITTLE_ENDIAN
883	select ZONE_DMA32 if 64BIT
884	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
885
886config SNI_RM
887	bool "SNI RM200/300/400"
888	select ARC_MEMORY
889	select ARC_PROMLIB
890	select FW_ARC if CPU_LITTLE_ENDIAN
891	select FW_ARC32 if CPU_LITTLE_ENDIAN
892	select FW_SNIPROM if CPU_BIG_ENDIAN
893	select ARCH_MAY_HAVE_PC_FDC
894	select ARCH_MIGHT_HAVE_PC_PARPORT
895	select ARCH_MIGHT_HAVE_PC_SERIO
896	select BOOT_ELF32
897	select CEVT_R4K
898	select CSRC_R4K
899	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
900	select DMA_NONCOHERENT
901	select GENERIC_ISA_DMA
902	select HAVE_EISA
903	select HAVE_PCSPKR_PLATFORM
904	select HAVE_PCI
905	select IRQ_MIPS_CPU
906	select I8253
907	select I8259
908	select ISA
909	select MIPS_L1_CACHE_SHIFT_6
910	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
911	select SYS_HAS_CPU_R4X00
912	select SYS_HAS_CPU_R5000
913	select SYS_HAS_CPU_R10000
914	select R5000_CPU_SCACHE
915	select SYS_HAS_EARLY_PRINTK
916	select SYS_SUPPORTS_32BIT_KERNEL
917	select SYS_SUPPORTS_64BIT_KERNEL
918	select SYS_SUPPORTS_BIG_ENDIAN
919	select SYS_SUPPORTS_HIGHMEM
920	select SYS_SUPPORTS_LITTLE_ENDIAN
921	select WAR_R4600_V2_HIT_CACHEOP
922	help
923	  The SNI RM200/300/400 are MIPS-based machines manufactured by
924	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
925	  Technology and now in turn merged with Fujitsu.  Say Y here to
926	  support this machine type.
927
928config MACH_TX39XX
929	bool "Toshiba TX39 series based machines"
930
931config MACH_TX49XX
932	bool "Toshiba TX49 series based machines"
933	select WAR_TX49XX_ICACHE_INDEX_INV
934
935config MIKROTIK_RB532
936	bool "Mikrotik RB532 boards"
937	select CEVT_R4K
938	select CSRC_R4K
939	select DMA_NONCOHERENT
940	select HAVE_PCI
941	select IRQ_MIPS_CPU
942	select SYS_HAS_CPU_MIPS32_R1
943	select SYS_SUPPORTS_32BIT_KERNEL
944	select SYS_SUPPORTS_LITTLE_ENDIAN
945	select SWAP_IO_SPACE
946	select BOOT_RAW
947	select GPIOLIB
948	select MIPS_L1_CACHE_SHIFT_4
949	help
950	  Support the Mikrotik(tm) RouterBoard 532 series,
951	  based on the IDT RC32434 SoC.
952
953config CAVIUM_OCTEON_SOC
954	bool "Cavium Networks Octeon SoC based boards"
955	select CEVT_R4K
956	select ARCH_HAS_PHYS_TO_DMA
957	select HAVE_RAPIDIO
958	select PHYS_ADDR_T_64BIT
959	select SYS_SUPPORTS_64BIT_KERNEL
960	select SYS_SUPPORTS_BIG_ENDIAN
961	select EDAC_SUPPORT
962	select EDAC_ATOMIC_SCRUB
963	select SYS_SUPPORTS_LITTLE_ENDIAN
964	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
965	select SYS_HAS_EARLY_PRINTK
966	select SYS_HAS_CPU_CAVIUM_OCTEON
967	select HAVE_PCI
968	select HAVE_PLAT_DELAY
969	select HAVE_PLAT_FW_INIT_CMDLINE
970	select HAVE_PLAT_MEMCPY
971	select ZONE_DMA32
972	select GPIOLIB
973	select USE_OF
974	select ARCH_SPARSEMEM_ENABLE
975	select SYS_SUPPORTS_SMP
976	select NR_CPUS_DEFAULT_64
977	select MIPS_NR_CPU_NR_MAP_1024
978	select BUILTIN_DTB
979	select MTD
980	select MTD_COMPLEX_MAPPINGS
981	select SWIOTLB
982	select SYS_SUPPORTS_RELOCATABLE
983	help
984	  This option supports all of the Octeon reference boards from Cavium
985	  Networks. It builds a kernel that dynamically determines the Octeon
986	  CPU type and supports all known board reference implementations.
987	  Some of the supported boards are:
988		EBT3000
989		EBH3000
990		EBH3100
991		Thunder
992		Kodama
993		Hikari
994	  Say Y here for most Octeon reference boards.
995
996config NLM_XLR_BOARD
997	bool "Netlogic XLR/XLS based systems"
998	select BOOT_ELF32
999	select NLM_COMMON
1000	select SYS_HAS_CPU_XLR
1001	select SYS_SUPPORTS_SMP
1002	select HAVE_PCI
1003	select SWAP_IO_SPACE
1004	select SYS_SUPPORTS_32BIT_KERNEL
1005	select SYS_SUPPORTS_64BIT_KERNEL
1006	select PHYS_ADDR_T_64BIT
1007	select SYS_SUPPORTS_BIG_ENDIAN
1008	select SYS_SUPPORTS_HIGHMEM
1009	select NR_CPUS_DEFAULT_32
1010	select CEVT_R4K
1011	select CSRC_R4K
1012	select IRQ_MIPS_CPU
1013	select ZONE_DMA32 if 64BIT
1014	select SYNC_R4K
1015	select SYS_HAS_EARLY_PRINTK
1016	select SYS_SUPPORTS_ZBOOT
1017	select SYS_SUPPORTS_ZBOOT_UART16550
1018	help
1019	  Support for systems based on Netlogic XLR and XLS processors.
1020	  Say Y here if you have a XLR or XLS based board.
1021
1022config NLM_XLP_BOARD
1023	bool "Netlogic XLP based systems"
1024	select BOOT_ELF32
1025	select NLM_COMMON
1026	select SYS_HAS_CPU_XLP
1027	select SYS_SUPPORTS_SMP
1028	select HAVE_PCI
1029	select SYS_SUPPORTS_32BIT_KERNEL
1030	select SYS_SUPPORTS_64BIT_KERNEL
1031	select PHYS_ADDR_T_64BIT
1032	select GPIOLIB
1033	select SYS_SUPPORTS_BIG_ENDIAN
1034	select SYS_SUPPORTS_LITTLE_ENDIAN
1035	select SYS_SUPPORTS_HIGHMEM
1036	select NR_CPUS_DEFAULT_32
1037	select CEVT_R4K
1038	select CSRC_R4K
1039	select IRQ_MIPS_CPU
1040	select ZONE_DMA32 if 64BIT
1041	select SYNC_R4K
1042	select SYS_HAS_EARLY_PRINTK
1043	select USE_OF
1044	select SYS_SUPPORTS_ZBOOT
1045	select SYS_SUPPORTS_ZBOOT_UART16550
1046	help
1047	  This board is based on Netlogic XLP Processor.
1048	  Say Y here if you have a XLP based board.
1049
1050endchoice
1051
1052source "arch/mips/alchemy/Kconfig"
1053source "arch/mips/ath25/Kconfig"
1054source "arch/mips/ath79/Kconfig"
1055source "arch/mips/bcm47xx/Kconfig"
1056source "arch/mips/bcm63xx/Kconfig"
1057source "arch/mips/bmips/Kconfig"
1058source "arch/mips/generic/Kconfig"
1059source "arch/mips/ingenic/Kconfig"
1060source "arch/mips/jazz/Kconfig"
1061source "arch/mips/lantiq/Kconfig"
1062source "arch/mips/pic32/Kconfig"
1063source "arch/mips/ralink/Kconfig"
1064source "arch/mips/sgi-ip27/Kconfig"
1065source "arch/mips/sibyte/Kconfig"
1066source "arch/mips/txx9/Kconfig"
1067source "arch/mips/vr41xx/Kconfig"
1068source "arch/mips/cavium-octeon/Kconfig"
1069source "arch/mips/loongson2ef/Kconfig"
1070source "arch/mips/loongson32/Kconfig"
1071source "arch/mips/loongson64/Kconfig"
1072source "arch/mips/netlogic/Kconfig"
1073
1074endmenu
1075
1076config GENERIC_HWEIGHT
1077	bool
1078	default y
1079
1080config GENERIC_CALIBRATE_DELAY
1081	bool
1082	default y
1083
1084config SCHED_OMIT_FRAME_POINTER
1085	bool
1086	default y
1087
1088#
1089# Select some configuration options automatically based on user selections.
1090#
1091config FW_ARC
1092	bool
1093
1094config ARCH_MAY_HAVE_PC_FDC
1095	bool
1096
1097config BOOT_RAW
1098	bool
1099
1100config CEVT_BCM1480
1101	bool
1102
1103config CEVT_DS1287
1104	bool
1105
1106config CEVT_GT641XX
1107	bool
1108
1109config CEVT_R4K
1110	bool
1111
1112config CEVT_SB1250
1113	bool
1114
1115config CEVT_TXX9
1116	bool
1117
1118config CSRC_BCM1480
1119	bool
1120
1121config CSRC_IOASIC
1122	bool
1123
1124config CSRC_R4K
1125	select CLOCKSOURCE_WATCHDOG if CPU_FREQ
1126	bool
1127
1128config CSRC_SB1250
1129	bool
1130
1131config MIPS_CLOCK_VSYSCALL
1132	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1133
1134config GPIO_TXX9
1135	select GPIOLIB
1136	bool
1137
1138config FW_CFE
1139	bool
1140
1141config ARCH_SUPPORTS_UPROBES
1142	bool
1143
1144config DMA_PERDEV_COHERENT
1145	bool
1146	select ARCH_HAS_SETUP_DMA_OPS
1147	select DMA_NONCOHERENT
1148
1149config DMA_NONCOHERENT
1150	bool
1151	#
1152	# MIPS allows mixing "slightly different" Cacheability and Coherency
1153	# Attribute bits.  It is believed that the uncached access through
1154	# KSEG1 and the implementation specific "uncached accelerated" used
1155	# by pgprot_writcombine can be mixed, and the latter sometimes provides
1156	# significant advantages.
1157	#
1158	select ARCH_HAS_DMA_WRITE_COMBINE
1159	select ARCH_HAS_DMA_PREP_COHERENT
1160	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1161	select ARCH_HAS_DMA_SET_UNCACHED
1162	select DMA_NONCOHERENT_MMAP
1163	select NEED_DMA_MAP_STATE
1164
1165config SYS_HAS_EARLY_PRINTK
1166	bool
1167
1168config SYS_SUPPORTS_HOTPLUG_CPU
1169	bool
1170
1171config MIPS_BONITO64
1172	bool
1173
1174config MIPS_MSC
1175	bool
1176
1177config SYNC_R4K
1178	bool
1179
1180config NO_IOPORT_MAP
1181	def_bool n
1182
1183config GENERIC_CSUM
1184	def_bool CPU_NO_LOAD_STORE_LR
1185
1186config GENERIC_ISA_DMA
1187	bool
1188	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1189	select ISA_DMA_API
1190
1191config GENERIC_ISA_DMA_SUPPORT_BROKEN
1192	bool
1193	select GENERIC_ISA_DMA
1194
1195config HAVE_PLAT_DELAY
1196	bool
1197
1198config HAVE_PLAT_FW_INIT_CMDLINE
1199	bool
1200
1201config HAVE_PLAT_MEMCPY
1202	bool
1203
1204config ISA_DMA_API
1205	bool
1206
1207config SYS_SUPPORTS_RELOCATABLE
1208	bool
1209	help
1210	  Selected if the platform supports relocating the kernel.
1211	  The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1212	  to allow access to command line and entropy sources.
1213
1214config MIPS_CBPF_JIT
1215	def_bool y
1216	depends on BPF_JIT && HAVE_CBPF_JIT
1217
1218config MIPS_EBPF_JIT
1219	def_bool y
1220	depends on BPF_JIT && HAVE_EBPF_JIT
1221
1222
1223#
1224# Endianness selection.  Sufficiently obscure so many users don't know what to
1225# answer,so we try hard to limit the available choices.  Also the use of a
1226# choice statement should be more obvious to the user.
1227#
1228choice
1229	prompt "Endianness selection"
1230	help
1231	  Some MIPS machines can be configured for either little or big endian
1232	  byte order. These modes require different kernels and a different
1233	  Linux distribution.  In general there is one preferred byteorder for a
1234	  particular system but some systems are just as commonly used in the
1235	  one or the other endianness.
1236
1237config CPU_BIG_ENDIAN
1238	bool "Big endian"
1239	depends on SYS_SUPPORTS_BIG_ENDIAN
1240
1241config CPU_LITTLE_ENDIAN
1242	bool "Little endian"
1243	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1244
1245endchoice
1246
1247config EXPORT_UASM
1248	bool
1249
1250config SYS_SUPPORTS_APM_EMULATION
1251	bool
1252
1253config SYS_SUPPORTS_BIG_ENDIAN
1254	bool
1255
1256config SYS_SUPPORTS_LITTLE_ENDIAN
1257	bool
1258
1259config MIPS_HUGE_TLB_SUPPORT
1260	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1261
1262config IRQ_MSP_SLP
1263	bool
1264
1265config IRQ_MSP_CIC
1266	bool
1267
1268config IRQ_TXX9
1269	bool
1270
1271config IRQ_GT641XX
1272	bool
1273
1274config PCI_GT64XXX_PCI0
1275	bool
1276
1277config PCI_XTALK_BRIDGE
1278	bool
1279
1280config NO_EXCEPT_FILL
1281	bool
1282
1283config MIPS_SPRAM
1284	bool
1285
1286config SWAP_IO_SPACE
1287	bool
1288
1289config SGI_HAS_INDYDOG
1290	bool
1291
1292config SGI_HAS_HAL2
1293	bool
1294
1295config SGI_HAS_SEEQ
1296	bool
1297
1298config SGI_HAS_WD93
1299	bool
1300
1301config SGI_HAS_ZILOG
1302	bool
1303
1304config SGI_HAS_I8042
1305	bool
1306
1307config DEFAULT_SGI_PARTITION
1308	bool
1309
1310config FW_ARC32
1311	bool
1312
1313config FW_SNIPROM
1314	bool
1315
1316config BOOT_ELF32
1317	bool
1318
1319config MIPS_L1_CACHE_SHIFT_4
1320	bool
1321
1322config MIPS_L1_CACHE_SHIFT_5
1323	bool
1324
1325config MIPS_L1_CACHE_SHIFT_6
1326	bool
1327
1328config MIPS_L1_CACHE_SHIFT_7
1329	bool
1330
1331config MIPS_L1_CACHE_SHIFT
1332	int
1333	default "7" if MIPS_L1_CACHE_SHIFT_7
1334	default "6" if MIPS_L1_CACHE_SHIFT_6
1335	default "5" if MIPS_L1_CACHE_SHIFT_5
1336	default "4" if MIPS_L1_CACHE_SHIFT_4
1337	default "5"
1338
1339config ARC_CMDLINE_ONLY
1340	bool
1341
1342config ARC_CONSOLE
1343	bool "ARC console support"
1344	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1345
1346config ARC_MEMORY
1347	bool
1348
1349config ARC_PROMLIB
1350	bool
1351
1352config FW_ARC64
1353	bool
1354
1355config BOOT_ELF64
1356	bool
1357
1358menu "CPU selection"
1359
1360choice
1361	prompt "CPU type"
1362	default CPU_R4X00
1363
1364config CPU_LOONGSON64
1365	bool "Loongson 64-bit CPU"
1366	depends on SYS_HAS_CPU_LOONGSON64
1367	select ARCH_HAS_PHYS_TO_DMA
1368	select CPU_MIPSR2
1369	select CPU_HAS_PREFETCH
1370	select CPU_SUPPORTS_64BIT_KERNEL
1371	select CPU_SUPPORTS_HIGHMEM
1372	select CPU_SUPPORTS_HUGEPAGES
1373	select CPU_SUPPORTS_MSA
1374	select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
1375	select CPU_MIPSR2_IRQ_VI
1376	select WEAK_ORDERING
1377	select WEAK_REORDERING_BEYOND_LLSC
1378	select MIPS_ASID_BITS_VARIABLE
1379	select MIPS_PGD_C0_CONTEXT
1380	select MIPS_L1_CACHE_SHIFT_6
1381	select GPIOLIB
1382	select SWIOTLB
1383	select HAVE_KVM
1384	help
1385		The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
1386		cores implements the MIPS64R2 instruction set with many extensions,
1387		including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
1388		3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
1389		Loongson-2E/2F is not covered here and will be removed in future.
1390
1391config LOONGSON3_ENHANCEMENT
1392	bool "New Loongson-3 CPU Enhancements"
1393	default n
1394	depends on CPU_LOONGSON64
1395	help
1396	  New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1397	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1398	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1399	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1400	  Fast TLB refill support, etc.
1401
1402	  This option enable those enhancements which are not probed at run
1403	  time. If you want a generic kernel to run on all Loongson 3 machines,
1404	  please say 'N' here. If you want a high-performance kernel to run on
1405	  new Loongson-3 machines only, please say 'Y' here.
1406
1407config CPU_LOONGSON3_WORKAROUNDS
1408	bool "Old Loongson-3 LLSC Workarounds"
1409	default y if SMP
1410	depends on CPU_LOONGSON64
1411	help
1412	  Loongson-3 processors have the llsc issues which require workarounds.
1413	  Without workarounds the system may hang unexpectedly.
1414
1415	  Newer Loongson-3 will fix these issues and no workarounds are needed.
1416	  The workarounds have no significant side effect on them but may
1417	  decrease the performance of the system so this option should be
1418	  disabled unless the kernel is intended to be run on old systems.
1419
1420	  If unsure, please say Y.
1421
1422config CPU_LOONGSON3_CPUCFG_EMULATION
1423	bool "Emulate the CPUCFG instruction on older Loongson cores"
1424	default y
1425	depends on CPU_LOONGSON64
1426	help
1427	  Loongson-3A R4 and newer have the CPUCFG instruction available for
1428	  userland to query CPU capabilities, much like CPUID on x86. This
1429	  option provides emulation of the instruction on older Loongson
1430	  cores, back to Loongson-3A1000.
1431
1432	  If unsure, please say Y.
1433
1434config CPU_LOONGSON2E
1435	bool "Loongson 2E"
1436	depends on SYS_HAS_CPU_LOONGSON2E
1437	select CPU_LOONGSON2EF
1438	help
1439	  The Loongson 2E processor implements the MIPS III instruction set
1440	  with many extensions.
1441
1442	  It has an internal FPGA northbridge, which is compatible to
1443	  bonito64.
1444
1445config CPU_LOONGSON2F
1446	bool "Loongson 2F"
1447	depends on SYS_HAS_CPU_LOONGSON2F
1448	select CPU_LOONGSON2EF
1449	select GPIOLIB
1450	help
1451	  The Loongson 2F processor implements the MIPS III instruction set
1452	  with many extensions.
1453
1454	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1455	  have a similar programming interface with FPGA northbridge used in
1456	  Loongson2E.
1457
1458config CPU_LOONGSON1B
1459	bool "Loongson 1B"
1460	depends on SYS_HAS_CPU_LOONGSON1B
1461	select CPU_LOONGSON32
1462	select LEDS_GPIO_REGISTER
1463	help
1464	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1465	  Release 1 instruction set and part of the MIPS32 Release 2
1466	  instruction set.
1467
1468config CPU_LOONGSON1C
1469	bool "Loongson 1C"
1470	depends on SYS_HAS_CPU_LOONGSON1C
1471	select CPU_LOONGSON32
1472	select LEDS_GPIO_REGISTER
1473	help
1474	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1475	  Release 1 instruction set and part of the MIPS32 Release 2
1476	  instruction set.
1477
1478config CPU_MIPS32_R1
1479	bool "MIPS32 Release 1"
1480	depends on SYS_HAS_CPU_MIPS32_R1
1481	select CPU_HAS_PREFETCH
1482	select CPU_SUPPORTS_32BIT_KERNEL
1483	select CPU_SUPPORTS_HIGHMEM
1484	help
1485	  Choose this option to build a kernel for release 1 or later of the
1486	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1487	  MIPS processor are based on a MIPS32 processor.  If you know the
1488	  specific type of processor in your system, choose those that one
1489	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1490	  Release 2 of the MIPS32 architecture is available since several
1491	  years so chances are you even have a MIPS32 Release 2 processor
1492	  in which case you should choose CPU_MIPS32_R2 instead for better
1493	  performance.
1494
1495config CPU_MIPS32_R2
1496	bool "MIPS32 Release 2"
1497	depends on SYS_HAS_CPU_MIPS32_R2
1498	select CPU_HAS_PREFETCH
1499	select CPU_SUPPORTS_32BIT_KERNEL
1500	select CPU_SUPPORTS_HIGHMEM
1501	select CPU_SUPPORTS_MSA
1502	select HAVE_KVM
1503	help
1504	  Choose this option to build a kernel for release 2 or later of the
1505	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1506	  MIPS processor are based on a MIPS32 processor.  If you know the
1507	  specific type of processor in your system, choose those that one
1508	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1509
1510config CPU_MIPS32_R5
1511	bool "MIPS32 Release 5"
1512	depends on SYS_HAS_CPU_MIPS32_R5
1513	select CPU_HAS_PREFETCH
1514	select CPU_SUPPORTS_32BIT_KERNEL
1515	select CPU_SUPPORTS_HIGHMEM
1516	select CPU_SUPPORTS_MSA
1517	select HAVE_KVM
1518	select MIPS_O32_FP64_SUPPORT
1519	help
1520	  Choose this option to build a kernel for release 5 or later of the
1521	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1522	  family, are based on a MIPS32r5 processor. If you own an older
1523	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1524
1525config CPU_MIPS32_R6
1526	bool "MIPS32 Release 6"
1527	depends on SYS_HAS_CPU_MIPS32_R6
1528	select CPU_HAS_PREFETCH
1529	select CPU_NO_LOAD_STORE_LR
1530	select CPU_SUPPORTS_32BIT_KERNEL
1531	select CPU_SUPPORTS_HIGHMEM
1532	select CPU_SUPPORTS_MSA
1533	select HAVE_KVM
1534	select MIPS_O32_FP64_SUPPORT
1535	help
1536	  Choose this option to build a kernel for release 6 or later of the
1537	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1538	  family, are based on a MIPS32r6 processor. If you own an older
1539	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1540
1541config CPU_MIPS64_R1
1542	bool "MIPS64 Release 1"
1543	depends on SYS_HAS_CPU_MIPS64_R1
1544	select CPU_HAS_PREFETCH
1545	select CPU_SUPPORTS_32BIT_KERNEL
1546	select CPU_SUPPORTS_64BIT_KERNEL
1547	select CPU_SUPPORTS_HIGHMEM
1548	select CPU_SUPPORTS_HUGEPAGES
1549	help
1550	  Choose this option to build a kernel for release 1 or later of the
1551	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1552	  MIPS processor are based on a MIPS64 processor.  If you know the
1553	  specific type of processor in your system, choose those that one
1554	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1555	  Release 2 of the MIPS64 architecture is available since several
1556	  years so chances are you even have a MIPS64 Release 2 processor
1557	  in which case you should choose CPU_MIPS64_R2 instead for better
1558	  performance.
1559
1560config CPU_MIPS64_R2
1561	bool "MIPS64 Release 2"
1562	depends on SYS_HAS_CPU_MIPS64_R2
1563	select CPU_HAS_PREFETCH
1564	select CPU_SUPPORTS_32BIT_KERNEL
1565	select CPU_SUPPORTS_64BIT_KERNEL
1566	select CPU_SUPPORTS_HIGHMEM
1567	select CPU_SUPPORTS_HUGEPAGES
1568	select CPU_SUPPORTS_MSA
1569	select HAVE_KVM
1570	help
1571	  Choose this option to build a kernel for release 2 or later of the
1572	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1573	  MIPS processor are based on a MIPS64 processor.  If you know the
1574	  specific type of processor in your system, choose those that one
1575	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1576
1577config CPU_MIPS64_R5
1578	bool "MIPS64 Release 5"
1579	depends on SYS_HAS_CPU_MIPS64_R5
1580	select CPU_HAS_PREFETCH
1581	select CPU_SUPPORTS_32BIT_KERNEL
1582	select CPU_SUPPORTS_64BIT_KERNEL
1583	select CPU_SUPPORTS_HIGHMEM
1584	select CPU_SUPPORTS_HUGEPAGES
1585	select CPU_SUPPORTS_MSA
1586	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1587	select HAVE_KVM
1588	help
1589	  Choose this option to build a kernel for release 5 or later of the
1590	  MIPS64 architecture.  This is a intermediate MIPS architecture
1591	  release partly implementing release 6 features. Though there is no
1592	  any hardware known to be based on this release.
1593
1594config CPU_MIPS64_R6
1595	bool "MIPS64 Release 6"
1596	depends on SYS_HAS_CPU_MIPS64_R6
1597	select CPU_HAS_PREFETCH
1598	select CPU_NO_LOAD_STORE_LR
1599	select CPU_SUPPORTS_32BIT_KERNEL
1600	select CPU_SUPPORTS_64BIT_KERNEL
1601	select CPU_SUPPORTS_HIGHMEM
1602	select CPU_SUPPORTS_HUGEPAGES
1603	select CPU_SUPPORTS_MSA
1604	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1605	select HAVE_KVM
1606	help
1607	  Choose this option to build a kernel for release 6 or later of the
1608	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1609	  family, are based on a MIPS64r6 processor. If you own an older
1610	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1611
1612config CPU_P5600
1613	bool "MIPS Warrior P5600"
1614	depends on SYS_HAS_CPU_P5600
1615	select CPU_HAS_PREFETCH
1616	select CPU_SUPPORTS_32BIT_KERNEL
1617	select CPU_SUPPORTS_HIGHMEM
1618	select CPU_SUPPORTS_MSA
1619	select CPU_SUPPORTS_CPUFREQ
1620	select CPU_MIPSR2_IRQ_VI
1621	select CPU_MIPSR2_IRQ_EI
1622	select HAVE_KVM
1623	select MIPS_O32_FP64_SUPPORT
1624	help
1625	  Choose this option to build a kernel for MIPS Warrior P5600 CPU.
1626	  It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes,
1627	  MMU with two-levels TLB, UCA, MSA, MDU core level features and system
1628	  level features like up to six P5600 calculation cores, CM2 with L2
1629	  cache, IOCU/IOMMU (though might be unused depending on the system-
1630	  specific IP core configuration), GIC, CPC, virtualisation module,
1631	  eJTAG and PDtrace.
1632
1633config CPU_R3000
1634	bool "R3000"
1635	depends on SYS_HAS_CPU_R3000
1636	select CPU_HAS_WB
1637	select CPU_R3K_TLB
1638	select CPU_SUPPORTS_32BIT_KERNEL
1639	select CPU_SUPPORTS_HIGHMEM
1640	help
1641	  Please make sure to pick the right CPU type. Linux/MIPS is not
1642	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1643	  *not* work on R4000 machines and vice versa.  However, since most
1644	  of the supported machines have an R4000 (or similar) CPU, R4x00
1645	  might be a safe bet.  If the resulting kernel does not work,
1646	  try to recompile with R3000.
1647
1648config CPU_TX39XX
1649	bool "R39XX"
1650	depends on SYS_HAS_CPU_TX39XX
1651	select CPU_SUPPORTS_32BIT_KERNEL
1652	select CPU_R3K_TLB
1653
1654config CPU_VR41XX
1655	bool "R41xx"
1656	depends on SYS_HAS_CPU_VR41XX
1657	select CPU_SUPPORTS_32BIT_KERNEL
1658	select CPU_SUPPORTS_64BIT_KERNEL
1659	help
1660	  The options selects support for the NEC VR4100 series of processors.
1661	  Only choose this option if you have one of these processors as a
1662	  kernel built with this option will not run on any other type of
1663	  processor or vice versa.
1664
1665config CPU_R4300
1666	bool "R4300"
1667	depends on SYS_HAS_CPU_R4300
1668	select CPU_SUPPORTS_32BIT_KERNEL
1669	select CPU_SUPPORTS_64BIT_KERNEL
1670	select CPU_HAS_LOAD_STORE_LR
1671	help
1672	  MIPS Technologies R4300-series processors.
1673
1674config CPU_R4X00
1675	bool "R4x00"
1676	depends on SYS_HAS_CPU_R4X00
1677	select CPU_SUPPORTS_32BIT_KERNEL
1678	select CPU_SUPPORTS_64BIT_KERNEL
1679	select CPU_SUPPORTS_HUGEPAGES
1680	help
1681	  MIPS Technologies R4000-series processors other than 4300, including
1682	  the R4000, R4400, R4600, and 4700.
1683
1684config CPU_TX49XX
1685	bool "R49XX"
1686	depends on SYS_HAS_CPU_TX49XX
1687	select CPU_HAS_PREFETCH
1688	select CPU_SUPPORTS_32BIT_KERNEL
1689	select CPU_SUPPORTS_64BIT_KERNEL
1690	select CPU_SUPPORTS_HUGEPAGES
1691
1692config CPU_R5000
1693	bool "R5000"
1694	depends on SYS_HAS_CPU_R5000
1695	select CPU_SUPPORTS_32BIT_KERNEL
1696	select CPU_SUPPORTS_64BIT_KERNEL
1697	select CPU_SUPPORTS_HUGEPAGES
1698	help
1699	  MIPS Technologies R5000-series processors other than the Nevada.
1700
1701config CPU_R5500
1702	bool "R5500"
1703	depends on SYS_HAS_CPU_R5500
1704	select CPU_SUPPORTS_32BIT_KERNEL
1705	select CPU_SUPPORTS_64BIT_KERNEL
1706	select CPU_SUPPORTS_HUGEPAGES
1707	help
1708	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1709	  instruction set.
1710
1711config CPU_NEVADA
1712	bool "RM52xx"
1713	depends on SYS_HAS_CPU_NEVADA
1714	select CPU_SUPPORTS_32BIT_KERNEL
1715	select CPU_SUPPORTS_64BIT_KERNEL
1716	select CPU_SUPPORTS_HUGEPAGES
1717	help
1718	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1719
1720config CPU_R10000
1721	bool "R10000"
1722	depends on SYS_HAS_CPU_R10000
1723	select CPU_HAS_PREFETCH
1724	select CPU_SUPPORTS_32BIT_KERNEL
1725	select CPU_SUPPORTS_64BIT_KERNEL
1726	select CPU_SUPPORTS_HIGHMEM
1727	select CPU_SUPPORTS_HUGEPAGES
1728	help
1729	  MIPS Technologies R10000-series processors.
1730
1731config CPU_RM7000
1732	bool "RM7000"
1733	depends on SYS_HAS_CPU_RM7000
1734	select CPU_HAS_PREFETCH
1735	select CPU_SUPPORTS_32BIT_KERNEL
1736	select CPU_SUPPORTS_64BIT_KERNEL
1737	select CPU_SUPPORTS_HIGHMEM
1738	select CPU_SUPPORTS_HUGEPAGES
1739
1740config CPU_SB1
1741	bool "SB1"
1742	depends on SYS_HAS_CPU_SB1
1743	select CPU_SUPPORTS_32BIT_KERNEL
1744	select CPU_SUPPORTS_64BIT_KERNEL
1745	select CPU_SUPPORTS_HIGHMEM
1746	select CPU_SUPPORTS_HUGEPAGES
1747	select WEAK_ORDERING
1748
1749config CPU_CAVIUM_OCTEON
1750	bool "Cavium Octeon processor"
1751	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1752	select CPU_HAS_PREFETCH
1753	select CPU_SUPPORTS_64BIT_KERNEL
1754	select WEAK_ORDERING
1755	select CPU_SUPPORTS_HIGHMEM
1756	select CPU_SUPPORTS_HUGEPAGES
1757	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1758	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1759	select MIPS_L1_CACHE_SHIFT_7
1760	select HAVE_KVM
1761	help
1762	  The Cavium Octeon processor is a highly integrated chip containing
1763	  many ethernet hardware widgets for networking tasks. The processor
1764	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1765	  Full details can be found at http://www.caviumnetworks.com.
1766
1767config CPU_BMIPS
1768	bool "Broadcom BMIPS"
1769	depends on SYS_HAS_CPU_BMIPS
1770	select CPU_MIPS32
1771	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1772	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1773	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1774	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1775	select CPU_SUPPORTS_32BIT_KERNEL
1776	select DMA_NONCOHERENT
1777	select IRQ_MIPS_CPU
1778	select SWAP_IO_SPACE
1779	select WEAK_ORDERING
1780	select CPU_SUPPORTS_HIGHMEM
1781	select CPU_HAS_PREFETCH
1782	select CPU_SUPPORTS_CPUFREQ
1783	select MIPS_EXTERNAL_TIMER
1784	select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
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 "arch/mips/kvm/Kconfig"
3320
3321source "arch/mips/vdso/Kconfig"
3322