xref: /openbmc/linux/arch/mips/Kconfig (revision fe3083770c8d98e3dd8b9c6972153528970c251c)
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_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST
13	select ARCH_HAS_UBSAN_SANITIZE_ALL
14	select ARCH_HAS_GCOV_PROFILE_ALL
15	select ARCH_KEEP_MEMBLOCK if DEBUG_KERNEL
16	select ARCH_SUPPORTS_UPROBES
17	select ARCH_USE_BUILTIN_BSWAP
18	select ARCH_USE_CMPXCHG_LOCKREF if 64BIT
19	select ARCH_USE_QUEUED_RWLOCKS
20	select ARCH_USE_QUEUED_SPINLOCKS
21	select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT if MMU
22	select ARCH_WANT_IPC_PARSE_VERSION
23	select ARCH_WANT_LD_ORPHAN_WARN
24	select BUILDTIME_TABLE_SORT
25	select CLONE_BACKWARDS
26	select CPU_NO_EFFICIENT_FFS if (TARGET_ISA_REV < 1)
27	select CPU_PM if CPU_IDLE
28	select GENERIC_ATOMIC64 if !64BIT
29	select GENERIC_CMOS_UPDATE
30	select GENERIC_CPU_AUTOPROBE
31	select GENERIC_FIND_FIRST_BIT
32	select GENERIC_GETTIMEOFDAY
33	select GENERIC_IOMAP
34	select GENERIC_IRQ_PROBE
35	select GENERIC_IRQ_SHOW
36	select GENERIC_ISA_DMA if EISA
37	select GENERIC_LIB_ASHLDI3
38	select GENERIC_LIB_ASHRDI3
39	select GENERIC_LIB_CMPDI2
40	select GENERIC_LIB_LSHRDI3
41	select GENERIC_LIB_UCMPDI2
42	select GENERIC_SCHED_CLOCK if !CAVIUM_OCTEON_SOC
43	select GENERIC_SMP_IDLE_THREAD
44	select GENERIC_TIME_VSYSCALL
45	select GUP_GET_PTE_LOW_HIGH if CPU_MIPS32 && PHYS_ADDR_T_64BIT
46	select HANDLE_DOMAIN_IRQ
47	select HAVE_ARCH_COMPILER_H
48	select HAVE_ARCH_JUMP_LABEL
49	select HAVE_ARCH_KGDB if MIPS_FP_SUPPORT
50	select HAVE_ARCH_MMAP_RND_BITS if MMU
51	select HAVE_ARCH_MMAP_RND_COMPAT_BITS if MMU && COMPAT
52	select HAVE_ARCH_SECCOMP_FILTER
53	select HAVE_ARCH_TRACEHOOK
54	select HAVE_ARCH_TRANSPARENT_HUGEPAGE if CPU_SUPPORTS_HUGEPAGES
55	select HAVE_ASM_MODVERSIONS
56	select HAVE_CBPF_JIT if !64BIT && !CPU_MICROMIPS
57	select HAVE_CONTEXT_TRACKING
58	select HAVE_TIF_NOHZ
59	select HAVE_C_RECORDMCOUNT
60	select HAVE_DEBUG_KMEMLEAK
61	select HAVE_DEBUG_STACKOVERFLOW
62	select HAVE_DMA_CONTIGUOUS
63	select HAVE_DYNAMIC_FTRACE
64	select HAVE_EBPF_JIT if 64BIT && !CPU_MICROMIPS && TARGET_ISA_REV >= 2
65	select HAVE_EXIT_THREAD
66	select HAVE_FAST_GUP
67	select HAVE_FTRACE_MCOUNT_RECORD
68	select HAVE_FUNCTION_GRAPH_TRACER
69	select HAVE_FUNCTION_TRACER
70	select HAVE_GCC_PLUGINS
71	select HAVE_GENERIC_VDSO
72	select HAVE_IDE
73	select HAVE_IOREMAP_PROT
74	select HAVE_IRQ_EXIT_ON_IRQ_STACK
75	select HAVE_IRQ_TIME_ACCOUNTING
76	select HAVE_KPROBES
77	select HAVE_KRETPROBES
78	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION
79	select HAVE_MOD_ARCH_SPECIFIC
80	select HAVE_NMI
81	select HAVE_PERF_EVENTS
82	select HAVE_PERF_REGS
83	select HAVE_PERF_USER_STACK_DUMP
84	select HAVE_REGS_AND_STACK_ACCESS_API
85	select HAVE_RSEQ
86	select HAVE_SPARSE_SYSCALL_NR
87	select HAVE_STACKPROTECTOR
88	select HAVE_SYSCALL_TRACEPOINTS
89	select HAVE_VIRT_CPU_ACCOUNTING_GEN if 64BIT || !SMP
90	select IRQ_FORCED_THREADING
91	select ISA if EISA
92	select MODULES_USE_ELF_REL if MODULES
93	select MODULES_USE_ELF_RELA if MODULES && 64BIT
94	select PERF_USE_VMALLOC
95	select PCI_MSI_ARCH_FALLBACKS if PCI_MSI
96	select RTC_LIB
97	select SYSCTL_EXCEPTION_TRACE
98	select VIRT_TO_BUS
99	select ARCH_HAS_ELFCORE_COMPAT
100
101config MIPS_FIXUP_BIGPHYS_ADDR
102	bool
103
104config MIPS_GENERIC
105	bool
106
107config MACH_INGENIC
108	bool
109	select SYS_SUPPORTS_32BIT_KERNEL
110	select SYS_SUPPORTS_LITTLE_ENDIAN
111	select SYS_SUPPORTS_ZBOOT
112	select DMA_NONCOHERENT
113	select IRQ_MIPS_CPU
114	select PINCTRL
115	select GPIOLIB
116	select COMMON_CLK
117	select GENERIC_IRQ_CHIP
118	select BUILTIN_DTB if MIPS_NO_APPENDED_DTB
119	select USE_OF
120	select CPU_SUPPORTS_CPUFREQ
121	select MIPS_EXTERNAL_TIMER
122
123menu "Machine selection"
124
125choice
126	prompt "System type"
127	default MIPS_GENERIC_KERNEL
128
129config MIPS_GENERIC_KERNEL
130	bool "Generic board-agnostic MIPS kernel"
131	select ARCH_HAS_SETUP_DMA_OPS
132	select MIPS_GENERIC
133	select BOOT_RAW
134	select BUILTIN_DTB
135	select CEVT_R4K
136	select CLKSRC_MIPS_GIC
137	select COMMON_CLK
138	select CPU_MIPSR2_IRQ_EI
139	select CPU_MIPSR2_IRQ_VI
140	select CSRC_R4K
141	select DMA_NONCOHERENT
142	select HAVE_PCI
143	select IRQ_MIPS_CPU
144	select MIPS_AUTO_PFN_OFFSET
145	select MIPS_CPU_SCACHE
146	select MIPS_GIC
147	select MIPS_L1_CACHE_SHIFT_7
148	select NO_EXCEPT_FILL
149	select PCI_DRIVERS_GENERIC
150	select SMP_UP if SMP
151	select SWAP_IO_SPACE
152	select SYS_HAS_CPU_MIPS32_R1
153	select SYS_HAS_CPU_MIPS32_R2
154	select SYS_HAS_CPU_MIPS32_R6
155	select SYS_HAS_CPU_MIPS64_R1
156	select SYS_HAS_CPU_MIPS64_R2
157	select SYS_HAS_CPU_MIPS64_R6
158	select SYS_SUPPORTS_32BIT_KERNEL
159	select SYS_SUPPORTS_64BIT_KERNEL
160	select SYS_SUPPORTS_BIG_ENDIAN
161	select SYS_SUPPORTS_HIGHMEM
162	select SYS_SUPPORTS_LITTLE_ENDIAN
163	select SYS_SUPPORTS_MICROMIPS
164	select SYS_SUPPORTS_MIPS16
165	select SYS_SUPPORTS_MIPS_CPS
166	select SYS_SUPPORTS_MULTITHREADING
167	select SYS_SUPPORTS_RELOCATABLE
168	select SYS_SUPPORTS_SMARTMIPS
169	select SYS_SUPPORTS_ZBOOT
170	select UHI_BOOT
171	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
172	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
173	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
174	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
175	select USB_UHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
176	select USB_UHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
177	select USE_OF
178	help
179	  Select this to build a kernel which aims to support multiple boards,
180	  generally using a flattened device tree passed from the bootloader
181	  using the boot protocol defined in the UHI (Unified Hosting
182	  Interface) specification.
183
184config MIPS_ALCHEMY
185	bool "Alchemy processor based machines"
186	select PHYS_ADDR_T_64BIT
187	select CEVT_R4K
188	select CSRC_R4K
189	select IRQ_MIPS_CPU
190	select DMA_NONCOHERENT		# Au1000,1500,1100 aren't, rest is
191	select MIPS_FIXUP_BIGPHYS_ADDR if PCI
192	select SYS_HAS_CPU_MIPS32_R1
193	select SYS_SUPPORTS_32BIT_KERNEL
194	select SYS_SUPPORTS_APM_EMULATION
195	select GPIOLIB
196	select SYS_SUPPORTS_ZBOOT
197	select COMMON_CLK
198
199config AR7
200	bool "Texas Instruments AR7"
201	select BOOT_ELF32
202	select DMA_NONCOHERENT
203	select CEVT_R4K
204	select CSRC_R4K
205	select IRQ_MIPS_CPU
206	select NO_EXCEPT_FILL
207	select SWAP_IO_SPACE
208	select SYS_HAS_CPU_MIPS32_R1
209	select SYS_HAS_EARLY_PRINTK
210	select SYS_SUPPORTS_32BIT_KERNEL
211	select SYS_SUPPORTS_LITTLE_ENDIAN
212	select SYS_SUPPORTS_MIPS16
213	select SYS_SUPPORTS_ZBOOT_UART16550
214	select GPIOLIB
215	select VLYNQ
216	select HAVE_LEGACY_CLK
217	help
218	  Support for the Texas Instruments AR7 System-on-a-Chip
219	  family: TNETD7100, 7200 and 7300.
220
221config ATH25
222	bool "Atheros AR231x/AR531x SoC support"
223	select CEVT_R4K
224	select CSRC_R4K
225	select DMA_NONCOHERENT
226	select IRQ_MIPS_CPU
227	select IRQ_DOMAIN
228	select SYS_HAS_CPU_MIPS32_R1
229	select SYS_SUPPORTS_BIG_ENDIAN
230	select SYS_SUPPORTS_32BIT_KERNEL
231	select SYS_HAS_EARLY_PRINTK
232	help
233	  Support for Atheros AR231x and Atheros AR531x based boards
234
235config ATH79
236	bool "Atheros AR71XX/AR724X/AR913X based boards"
237	select ARCH_HAS_RESET_CONTROLLER
238	select BOOT_RAW
239	select CEVT_R4K
240	select CSRC_R4K
241	select DMA_NONCOHERENT
242	select GPIOLIB
243	select PINCTRL
244	select COMMON_CLK
245	select IRQ_MIPS_CPU
246	select SYS_HAS_CPU_MIPS32_R2
247	select SYS_HAS_EARLY_PRINTK
248	select SYS_SUPPORTS_32BIT_KERNEL
249	select SYS_SUPPORTS_BIG_ENDIAN
250	select SYS_SUPPORTS_MIPS16
251	select SYS_SUPPORTS_ZBOOT_UART_PROM
252	select USE_OF
253	select USB_EHCI_ROOT_HUB_TT if USB_EHCI_HCD_PLATFORM
254	help
255	  Support for the Atheros AR71XX/AR724X/AR913X SoCs.
256
257config BMIPS_GENERIC
258	bool "Broadcom Generic BMIPS kernel"
259	select ARCH_HAS_RESET_CONTROLLER
260	select ARCH_HAS_SYNC_DMA_FOR_CPU_ALL
261	select ARCH_HAS_PHYS_TO_DMA
262	select BOOT_RAW
263	select NO_EXCEPT_FILL
264	select USE_OF
265	select CEVT_R4K
266	select CSRC_R4K
267	select SYNC_R4K
268	select COMMON_CLK
269	select BCM6345_L1_IRQ
270	select BCM7038_L1_IRQ
271	select BCM7120_L2_IRQ
272	select BRCMSTB_L2_IRQ
273	select IRQ_MIPS_CPU
274	select DMA_NONCOHERENT
275	select SYS_SUPPORTS_32BIT_KERNEL
276	select SYS_SUPPORTS_LITTLE_ENDIAN
277	select SYS_SUPPORTS_BIG_ENDIAN
278	select SYS_SUPPORTS_HIGHMEM
279	select SYS_HAS_CPU_BMIPS32_3300
280	select SYS_HAS_CPU_BMIPS4350
281	select SYS_HAS_CPU_BMIPS4380
282	select SYS_HAS_CPU_BMIPS5000
283	select SWAP_IO_SPACE
284	select USB_EHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
285	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
286	select USB_OHCI_BIG_ENDIAN_DESC if CPU_BIG_ENDIAN
287	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
288	select HARDIRQS_SW_RESEND
289	help
290	  Build a generic DT-based kernel image that boots on select
291	  BCM33xx cable modem chips, BCM63xx DSL chips, and BCM7xxx set-top
292	  box chips.  Note that CONFIG_CPU_BIG_ENDIAN/CONFIG_CPU_LITTLE_ENDIAN
293	  must be set appropriately for your board.
294
295config BCM47XX
296	bool "Broadcom BCM47XX based boards"
297	select BOOT_RAW
298	select CEVT_R4K
299	select CSRC_R4K
300	select DMA_NONCOHERENT
301	select HAVE_PCI
302	select IRQ_MIPS_CPU
303	select SYS_HAS_CPU_MIPS32_R1
304	select NO_EXCEPT_FILL
305	select SYS_SUPPORTS_32BIT_KERNEL
306	select SYS_SUPPORTS_LITTLE_ENDIAN
307	select SYS_SUPPORTS_MIPS16
308	select SYS_SUPPORTS_ZBOOT
309	select SYS_HAS_EARLY_PRINTK
310	select USE_GENERIC_EARLY_PRINTK_8250
311	select GPIOLIB
312	select LEDS_GPIO_REGISTER
313	select BCM47XX_NVRAM
314	select BCM47XX_SPROM
315	select BCM47XX_SSB if !BCM47XX_BCMA
316	help
317	  Support for BCM47XX based boards
318
319config BCM63XX
320	bool "Broadcom BCM63XX based boards"
321	select BOOT_RAW
322	select CEVT_R4K
323	select CSRC_R4K
324	select SYNC_R4K
325	select DMA_NONCOHERENT
326	select IRQ_MIPS_CPU
327	select SYS_SUPPORTS_32BIT_KERNEL
328	select SYS_SUPPORTS_BIG_ENDIAN
329	select SYS_HAS_EARLY_PRINTK
330	select SWAP_IO_SPACE
331	select GPIOLIB
332	select MIPS_L1_CACHE_SHIFT_4
333	select CLKDEV_LOOKUP
334	select HAVE_LEGACY_CLK
335	help
336	  Support for BCM63XX based boards
337
338config MIPS_COBALT
339	bool "Cobalt Server"
340	select CEVT_R4K
341	select CSRC_R4K
342	select CEVT_GT641XX
343	select DMA_NONCOHERENT
344	select FORCE_PCI
345	select I8253
346	select I8259
347	select IRQ_MIPS_CPU
348	select IRQ_GT641XX
349	select PCI_GT64XXX_PCI0
350	select SYS_HAS_CPU_NEVADA
351	select SYS_HAS_EARLY_PRINTK
352	select SYS_SUPPORTS_32BIT_KERNEL
353	select SYS_SUPPORTS_64BIT_KERNEL
354	select SYS_SUPPORTS_LITTLE_ENDIAN
355	select USE_GENERIC_EARLY_PRINTK_8250
356
357config MACH_DECSTATION
358	bool "DECstations"
359	select BOOT_ELF32
360	select CEVT_DS1287
361	select CEVT_R4K if CPU_R4X00
362	select CSRC_IOASIC
363	select CSRC_R4K if CPU_R4X00
364	select CPU_DADDI_WORKAROUNDS if 64BIT
365	select CPU_R4000_WORKAROUNDS if 64BIT
366	select CPU_R4400_WORKAROUNDS if 64BIT
367	select DMA_NONCOHERENT
368	select NO_IOPORT_MAP
369	select IRQ_MIPS_CPU
370	select SYS_HAS_CPU_R3000
371	select SYS_HAS_CPU_R4X00
372	select SYS_SUPPORTS_32BIT_KERNEL
373	select SYS_SUPPORTS_64BIT_KERNEL
374	select SYS_SUPPORTS_LITTLE_ENDIAN
375	select SYS_SUPPORTS_128HZ
376	select SYS_SUPPORTS_256HZ
377	select SYS_SUPPORTS_1024HZ
378	select MIPS_L1_CACHE_SHIFT_4
379	help
380	  This enables support for DEC's MIPS based workstations.  For details
381	  see the Linux/MIPS FAQ on <http://www.linux-mips.org/> and the
382	  DECstation porting pages on <http://decstation.unix-ag.org/>.
383
384	  If you have one of the following DECstation Models you definitely
385	  want to choose R4xx0 for the CPU Type:
386
387		DECstation 5000/50
388		DECstation 5000/150
389		DECstation 5000/260
390		DECsystem 5900/260
391
392	  otherwise choose R3000.
393
394config MACH_JAZZ
395	bool "Jazz family of machines"
396	select ARC_MEMORY
397	select ARC_PROMLIB
398	select ARCH_MIGHT_HAVE_PC_PARPORT
399	select ARCH_MIGHT_HAVE_PC_SERIO
400	select DMA_OPS
401	select FW_ARC
402	select FW_ARC32
403	select ARCH_MAY_HAVE_PC_FDC
404	select CEVT_R4K
405	select CSRC_R4K
406	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
407	select GENERIC_ISA_DMA
408	select HAVE_PCSPKR_PLATFORM
409	select IRQ_MIPS_CPU
410	select I8253
411	select I8259
412	select ISA
413	select SYS_HAS_CPU_R4X00
414	select SYS_SUPPORTS_32BIT_KERNEL
415	select SYS_SUPPORTS_64BIT_KERNEL
416	select SYS_SUPPORTS_100HZ
417	select SYS_SUPPORTS_LITTLE_ENDIAN
418	help
419	  This a family of machines based on the MIPS R4030 chipset which was
420	  used by several vendors to build RISC/os and Windows NT workstations.
421	  Members include the Acer PICA, MIPS Magnum 4000, MIPS Millennium and
422	  Olivetti M700-10 workstations.
423
424config MACH_INGENIC_SOC
425	bool "Ingenic SoC based machines"
426	select MIPS_GENERIC
427	select MACH_INGENIC
428	select SYS_SUPPORTS_ZBOOT_UART16550
429
430config LANTIQ
431	bool "Lantiq based platforms"
432	select DMA_NONCOHERENT
433	select IRQ_MIPS_CPU
434	select CEVT_R4K
435	select CSRC_R4K
436	select SYS_HAS_CPU_MIPS32_R1
437	select SYS_HAS_CPU_MIPS32_R2
438	select SYS_SUPPORTS_BIG_ENDIAN
439	select SYS_SUPPORTS_32BIT_KERNEL
440	select SYS_SUPPORTS_MIPS16
441	select SYS_SUPPORTS_MULTITHREADING
442	select SYS_SUPPORTS_VPE_LOADER
443	select SYS_HAS_EARLY_PRINTK
444	select GPIOLIB
445	select SWAP_IO_SPACE
446	select BOOT_RAW
447	select CLKDEV_LOOKUP
448	select HAVE_LEGACY_CLK
449	select USE_OF
450	select PINCTRL
451	select PINCTRL_LANTIQ
452	select ARCH_HAS_RESET_CONTROLLER
453	select RESET_CONTROLLER
454
455config MACH_LOONGSON32
456	bool "Loongson 32-bit family of machines"
457	select SYS_SUPPORTS_ZBOOT
458	help
459	  This enables support for the Loongson-1 family of machines.
460
461	  Loongson-1 is a family of 32-bit MIPS-compatible SoCs developed by
462	  the Institute of Computing Technology (ICT), Chinese Academy of
463	  Sciences (CAS).
464
465config MACH_LOONGSON2EF
466	bool "Loongson-2E/F family of machines"
467	select SYS_SUPPORTS_ZBOOT
468	help
469	  This enables the support of early Loongson-2E/F family of machines.
470
471config MACH_LOONGSON64
472	bool "Loongson 64-bit family of machines"
473	select ARCH_SPARSEMEM_ENABLE
474	select ARCH_MIGHT_HAVE_PC_PARPORT
475	select ARCH_MIGHT_HAVE_PC_SERIO
476	select GENERIC_ISA_DMA_SUPPORT_BROKEN
477	select BOOT_ELF32
478	select BOARD_SCACHE
479	select CSRC_R4K
480	select CEVT_R4K
481	select CPU_HAS_WB
482	select FORCE_PCI
483	select ISA
484	select I8259
485	select IRQ_MIPS_CPU
486	select NO_EXCEPT_FILL
487	select NR_CPUS_DEFAULT_64
488	select USE_GENERIC_EARLY_PRINTK_8250
489	select PCI_DRIVERS_GENERIC
490	select SYS_HAS_CPU_LOONGSON64
491	select SYS_HAS_EARLY_PRINTK
492	select SYS_SUPPORTS_SMP
493	select SYS_SUPPORTS_HOTPLUG_CPU
494	select SYS_SUPPORTS_NUMA
495	select SYS_SUPPORTS_64BIT_KERNEL
496	select SYS_SUPPORTS_HIGHMEM
497	select SYS_SUPPORTS_LITTLE_ENDIAN
498	select SYS_SUPPORTS_ZBOOT
499	select SYS_SUPPORTS_RELOCATABLE
500	select ZONE_DMA32
501	select COMMON_CLK
502	select USE_OF
503	select BUILTIN_DTB
504	select PCI_HOST_GENERIC
505	help
506	  This enables the support of Loongson-2/3 family of machines.
507
508	  Loongson-2 and Loongson-3 are 64-bit general-purpose processors with
509	  GS264/GS464/GS464E/GS464V microarchitecture (except old Loongson-2E
510	  and Loongson-2F which will be removed), developed by the Institute
511	  of Computing Technology (ICT), Chinese Academy of Sciences (CAS).
512
513config MACH_PISTACHIO
514	bool "IMG Pistachio SoC based boards"
515	select BOOT_ELF32
516	select BOOT_RAW
517	select CEVT_R4K
518	select CLKSRC_MIPS_GIC
519	select COMMON_CLK
520	select CSRC_R4K
521	select DMA_NONCOHERENT
522	select GPIOLIB
523	select IRQ_MIPS_CPU
524	select MFD_SYSCON
525	select MIPS_CPU_SCACHE
526	select MIPS_GIC
527	select PINCTRL
528	select REGULATOR
529	select SYS_HAS_CPU_MIPS32_R2
530	select SYS_SUPPORTS_32BIT_KERNEL
531	select SYS_SUPPORTS_LITTLE_ENDIAN
532	select SYS_SUPPORTS_MIPS_CPS
533	select SYS_SUPPORTS_MULTITHREADING
534	select SYS_SUPPORTS_RELOCATABLE
535	select SYS_SUPPORTS_ZBOOT
536	select SYS_HAS_EARLY_PRINTK
537	select USE_GENERIC_EARLY_PRINTK_8250
538	select USE_OF
539	help
540	  This enables support for the IMG Pistachio SoC platform.
541
542config MIPS_MALTA
543	bool "MIPS Malta board"
544	select ARCH_MAY_HAVE_PC_FDC
545	select ARCH_MIGHT_HAVE_PC_PARPORT
546	select ARCH_MIGHT_HAVE_PC_SERIO
547	select BOOT_ELF32
548	select BOOT_RAW
549	select BUILTIN_DTB
550	select CEVT_R4K
551	select CLKSRC_MIPS_GIC
552	select COMMON_CLK
553	select CSRC_R4K
554	select DMA_NONCOHERENT
555	select GENERIC_ISA_DMA
556	select HAVE_PCSPKR_PLATFORM
557	select HAVE_PCI
558	select I8253
559	select I8259
560	select IRQ_MIPS_CPU
561	select MIPS_BONITO64
562	select MIPS_CPU_SCACHE
563	select MIPS_GIC
564	select MIPS_L1_CACHE_SHIFT_6
565	select MIPS_MSC
566	select PCI_GT64XXX_PCI0
567	select SMP_UP if SMP
568	select SWAP_IO_SPACE
569	select SYS_HAS_CPU_MIPS32_R1
570	select SYS_HAS_CPU_MIPS32_R2
571	select SYS_HAS_CPU_MIPS32_R3_5
572	select SYS_HAS_CPU_MIPS32_R5
573	select SYS_HAS_CPU_MIPS32_R6
574	select SYS_HAS_CPU_MIPS64_R1
575	select SYS_HAS_CPU_MIPS64_R2
576	select SYS_HAS_CPU_MIPS64_R6
577	select SYS_HAS_CPU_NEVADA
578	select SYS_HAS_CPU_RM7000
579	select SYS_SUPPORTS_32BIT_KERNEL
580	select SYS_SUPPORTS_64BIT_KERNEL
581	select SYS_SUPPORTS_BIG_ENDIAN
582	select SYS_SUPPORTS_HIGHMEM
583	select SYS_SUPPORTS_LITTLE_ENDIAN
584	select SYS_SUPPORTS_MICROMIPS
585	select SYS_SUPPORTS_MIPS16
586	select SYS_SUPPORTS_MIPS_CMP
587	select SYS_SUPPORTS_MIPS_CPS
588	select SYS_SUPPORTS_MULTITHREADING
589	select SYS_SUPPORTS_RELOCATABLE
590	select SYS_SUPPORTS_SMARTMIPS
591	select SYS_SUPPORTS_VPE_LOADER
592	select SYS_SUPPORTS_ZBOOT
593	select USE_OF
594	select WAR_ICACHE_REFILLS
595	select ZONE_DMA32 if 64BIT
596	help
597	  This enables support for the MIPS Technologies Malta evaluation
598	  board.
599
600config MACH_PIC32
601	bool "Microchip PIC32 Family"
602	help
603	  This enables support for the Microchip PIC32 family of platforms.
604
605	  Microchip PIC32 is a family of general-purpose 32 bit MIPS core
606	  microcontrollers.
607
608config MACH_VR41XX
609	bool "NEC VR4100 series based machines"
610	select CEVT_R4K
611	select CSRC_R4K
612	select SYS_HAS_CPU_VR41XX
613	select SYS_SUPPORTS_MIPS16
614	select GPIOLIB
615
616config MACH_NINTENDO64
617	bool "Nintendo 64 console"
618	select CEVT_R4K
619	select CSRC_R4K
620	select SYS_HAS_CPU_R4300
621	select SYS_SUPPORTS_BIG_ENDIAN
622	select SYS_SUPPORTS_ZBOOT
623	select SYS_SUPPORTS_32BIT_KERNEL
624	select SYS_SUPPORTS_64BIT_KERNEL
625	select DMA_NONCOHERENT
626	select IRQ_MIPS_CPU
627
628config RALINK
629	bool "Ralink based machines"
630	select CEVT_R4K
631	select CSRC_R4K
632	select BOOT_RAW
633	select DMA_NONCOHERENT
634	select IRQ_MIPS_CPU
635	select USE_OF
636	select SYS_HAS_CPU_MIPS32_R1
637	select SYS_HAS_CPU_MIPS32_R2
638	select SYS_SUPPORTS_32BIT_KERNEL
639	select SYS_SUPPORTS_LITTLE_ENDIAN
640	select SYS_SUPPORTS_MIPS16
641	select SYS_SUPPORTS_ZBOOT
642	select SYS_HAS_EARLY_PRINTK
643	select CLKDEV_LOOKUP
644	select ARCH_HAS_RESET_CONTROLLER
645	select RESET_CONTROLLER
646
647config MACH_REALTEK_RTL
648	bool "Realtek RTL838x/RTL839x based machines"
649	select MIPS_GENERIC
650	select DMA_NONCOHERENT
651	select IRQ_MIPS_CPU
652	select CSRC_R4K
653	select CEVT_R4K
654	select SYS_HAS_CPU_MIPS32_R1
655	select SYS_HAS_CPU_MIPS32_R2
656	select SYS_SUPPORTS_BIG_ENDIAN
657	select SYS_SUPPORTS_32BIT_KERNEL
658	select SYS_SUPPORTS_MIPS16
659	select SYS_SUPPORTS_MULTITHREADING
660	select SYS_SUPPORTS_VPE_LOADER
661	select SYS_HAS_EARLY_PRINTK
662	select SYS_HAS_EARLY_PRINTK_8250
663	select USE_GENERIC_EARLY_PRINTK_8250
664	select BOOT_RAW
665	select PINCTRL
666	select USE_OF
667
668config SGI_IP22
669	bool "SGI IP22 (Indy/Indigo2)"
670	select ARC_MEMORY
671	select ARC_PROMLIB
672	select FW_ARC
673	select FW_ARC32
674	select ARCH_MIGHT_HAVE_PC_SERIO
675	select BOOT_ELF32
676	select CEVT_R4K
677	select CSRC_R4K
678	select DEFAULT_SGI_PARTITION
679	select DMA_NONCOHERENT
680	select HAVE_EISA
681	select I8253
682	select I8259
683	select IP22_CPU_SCACHE
684	select IRQ_MIPS_CPU
685	select GENERIC_ISA_DMA_SUPPORT_BROKEN
686	select SGI_HAS_I8042
687	select SGI_HAS_INDYDOG
688	select SGI_HAS_HAL2
689	select SGI_HAS_SEEQ
690	select SGI_HAS_WD93
691	select SGI_HAS_ZILOG
692	select SWAP_IO_SPACE
693	select SYS_HAS_CPU_R4X00
694	select SYS_HAS_CPU_R5000
695	select SYS_HAS_EARLY_PRINTK
696	select SYS_SUPPORTS_32BIT_KERNEL
697	select SYS_SUPPORTS_64BIT_KERNEL
698	select SYS_SUPPORTS_BIG_ENDIAN
699	select WAR_R4600_V1_INDEX_ICACHEOP
700	select WAR_R4600_V1_HIT_CACHEOP
701	select WAR_R4600_V2_HIT_CACHEOP
702	select MIPS_L1_CACHE_SHIFT_7
703	help
704	  This are the SGI Indy, Challenge S and Indigo2, as well as certain
705	  OEM variants like the Tandem CMN B006S. To compile a Linux kernel
706	  that runs on these, say Y here.
707
708config SGI_IP27
709	bool "SGI IP27 (Origin200/2000)"
710	select ARCH_HAS_PHYS_TO_DMA
711	select ARCH_SPARSEMEM_ENABLE
712	select FW_ARC
713	select FW_ARC64
714	select ARC_CMDLINE_ONLY
715	select BOOT_ELF64
716	select DEFAULT_SGI_PARTITION
717	select FORCE_PCI
718	select SYS_HAS_EARLY_PRINTK
719	select HAVE_PCI
720	select IRQ_MIPS_CPU
721	select IRQ_DOMAIN_HIERARCHY
722	select NR_CPUS_DEFAULT_64
723	select PCI_DRIVERS_GENERIC
724	select PCI_XTALK_BRIDGE
725	select SYS_HAS_CPU_R10000
726	select SYS_SUPPORTS_64BIT_KERNEL
727	select SYS_SUPPORTS_BIG_ENDIAN
728	select SYS_SUPPORTS_NUMA
729	select SYS_SUPPORTS_SMP
730	select WAR_R10000_LLSC
731	select MIPS_L1_CACHE_SHIFT_7
732	select NUMA
733	help
734	  This are the SGI Origin 200, Origin 2000 and Onyx 2 Graphics
735	  workstations.  To compile a Linux kernel that runs on these, say Y
736	  here.
737
738config SGI_IP28
739	bool "SGI IP28 (Indigo2 R10k)"
740	select ARC_MEMORY
741	select ARC_PROMLIB
742	select FW_ARC
743	select FW_ARC64
744	select ARCH_MIGHT_HAVE_PC_SERIO
745	select BOOT_ELF64
746	select CEVT_R4K
747	select CSRC_R4K
748	select DEFAULT_SGI_PARTITION
749	select DMA_NONCOHERENT
750	select GENERIC_ISA_DMA_SUPPORT_BROKEN
751	select IRQ_MIPS_CPU
752	select HAVE_EISA
753	select I8253
754	select I8259
755	select SGI_HAS_I8042
756	select SGI_HAS_INDYDOG
757	select SGI_HAS_HAL2
758	select SGI_HAS_SEEQ
759	select SGI_HAS_WD93
760	select SGI_HAS_ZILOG
761	select SWAP_IO_SPACE
762	select SYS_HAS_CPU_R10000
763	select SYS_HAS_EARLY_PRINTK
764	select SYS_SUPPORTS_64BIT_KERNEL
765	select SYS_SUPPORTS_BIG_ENDIAN
766	select WAR_R10000_LLSC
767	select MIPS_L1_CACHE_SHIFT_7
768	help
769	  This is the SGI Indigo2 with R10000 processor.  To compile a Linux
770	  kernel that runs on these, say Y here.
771
772config SGI_IP30
773	bool "SGI IP30 (Octane/Octane2)"
774	select ARCH_HAS_PHYS_TO_DMA
775	select FW_ARC
776	select FW_ARC64
777	select BOOT_ELF64
778	select CEVT_R4K
779	select CSRC_R4K
780	select FORCE_PCI
781	select SYNC_R4K if SMP
782	select ZONE_DMA32
783	select HAVE_PCI
784	select IRQ_MIPS_CPU
785	select IRQ_DOMAIN_HIERARCHY
786	select NR_CPUS_DEFAULT_2
787	select PCI_DRIVERS_GENERIC
788	select PCI_XTALK_BRIDGE
789	select SYS_HAS_EARLY_PRINTK
790	select SYS_HAS_CPU_R10000
791	select SYS_SUPPORTS_64BIT_KERNEL
792	select SYS_SUPPORTS_BIG_ENDIAN
793	select SYS_SUPPORTS_SMP
794	select WAR_R10000_LLSC
795	select MIPS_L1_CACHE_SHIFT_7
796	select ARC_MEMORY
797	help
798	  These are the SGI Octane and Octane2 graphics workstations.  To
799	  compile a Linux kernel that runs on these, say Y here.
800
801config SGI_IP32
802	bool "SGI IP32 (O2)"
803	select ARC_MEMORY
804	select ARC_PROMLIB
805	select ARCH_HAS_PHYS_TO_DMA
806	select FW_ARC
807	select FW_ARC32
808	select BOOT_ELF32
809	select CEVT_R4K
810	select CSRC_R4K
811	select DMA_NONCOHERENT
812	select HAVE_PCI
813	select IRQ_MIPS_CPU
814	select R5000_CPU_SCACHE
815	select RM7000_CPU_SCACHE
816	select SYS_HAS_CPU_R5000
817	select SYS_HAS_CPU_R10000 if BROKEN
818	select SYS_HAS_CPU_RM7000
819	select SYS_HAS_CPU_NEVADA
820	select SYS_SUPPORTS_64BIT_KERNEL
821	select SYS_SUPPORTS_BIG_ENDIAN
822	select WAR_ICACHE_REFILLS
823	help
824	  If you want this kernel to run on SGI O2 workstation, say Y here.
825
826config SIBYTE_CRHINE
827	bool "Sibyte BCM91120C-CRhine"
828	select BOOT_ELF32
829	select SIBYTE_BCM1120
830	select SWAP_IO_SPACE
831	select SYS_HAS_CPU_SB1
832	select SYS_SUPPORTS_BIG_ENDIAN
833	select SYS_SUPPORTS_LITTLE_ENDIAN
834
835config SIBYTE_CARMEL
836	bool "Sibyte BCM91120x-Carmel"
837	select BOOT_ELF32
838	select SIBYTE_BCM1120
839	select SWAP_IO_SPACE
840	select SYS_HAS_CPU_SB1
841	select SYS_SUPPORTS_BIG_ENDIAN
842	select SYS_SUPPORTS_LITTLE_ENDIAN
843
844config SIBYTE_CRHONE
845	bool "Sibyte BCM91125C-CRhone"
846	select BOOT_ELF32
847	select SIBYTE_BCM1125
848	select SWAP_IO_SPACE
849	select SYS_HAS_CPU_SB1
850	select SYS_SUPPORTS_BIG_ENDIAN
851	select SYS_SUPPORTS_HIGHMEM
852	select SYS_SUPPORTS_LITTLE_ENDIAN
853
854config SIBYTE_RHONE
855	bool "Sibyte BCM91125E-Rhone"
856	select BOOT_ELF32
857	select SIBYTE_BCM1125H
858	select SWAP_IO_SPACE
859	select SYS_HAS_CPU_SB1
860	select SYS_SUPPORTS_BIG_ENDIAN
861	select SYS_SUPPORTS_LITTLE_ENDIAN
862
863config SIBYTE_SWARM
864	bool "Sibyte BCM91250A-SWARM"
865	select BOOT_ELF32
866	select HAVE_PATA_PLATFORM
867	select SIBYTE_SB1250
868	select SWAP_IO_SPACE
869	select SYS_HAS_CPU_SB1
870	select SYS_SUPPORTS_BIG_ENDIAN
871	select SYS_SUPPORTS_HIGHMEM
872	select SYS_SUPPORTS_LITTLE_ENDIAN
873	select ZONE_DMA32 if 64BIT
874	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
875
876config SIBYTE_LITTLESUR
877	bool "Sibyte BCM91250C2-LittleSur"
878	select BOOT_ELF32
879	select HAVE_PATA_PLATFORM
880	select SIBYTE_SB1250
881	select SWAP_IO_SPACE
882	select SYS_HAS_CPU_SB1
883	select SYS_SUPPORTS_BIG_ENDIAN
884	select SYS_SUPPORTS_HIGHMEM
885	select SYS_SUPPORTS_LITTLE_ENDIAN
886	select ZONE_DMA32 if 64BIT
887
888config SIBYTE_SENTOSA
889	bool "Sibyte BCM91250E-Sentosa"
890	select BOOT_ELF32
891	select SIBYTE_SB1250
892	select SWAP_IO_SPACE
893	select SYS_HAS_CPU_SB1
894	select SYS_SUPPORTS_BIG_ENDIAN
895	select SYS_SUPPORTS_LITTLE_ENDIAN
896	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
897
898config SIBYTE_BIGSUR
899	bool "Sibyte BCM91480B-BigSur"
900	select BOOT_ELF32
901	select NR_CPUS_DEFAULT_4
902	select SIBYTE_BCM1x80
903	select SWAP_IO_SPACE
904	select SYS_HAS_CPU_SB1
905	select SYS_SUPPORTS_BIG_ENDIAN
906	select SYS_SUPPORTS_HIGHMEM
907	select SYS_SUPPORTS_LITTLE_ENDIAN
908	select ZONE_DMA32 if 64BIT
909	select SWIOTLB if ARCH_DMA_ADDR_T_64BIT && PCI
910
911config SNI_RM
912	bool "SNI RM200/300/400"
913	select ARC_MEMORY
914	select ARC_PROMLIB
915	select FW_ARC if CPU_LITTLE_ENDIAN
916	select FW_ARC32 if CPU_LITTLE_ENDIAN
917	select FW_SNIPROM if CPU_BIG_ENDIAN
918	select ARCH_MAY_HAVE_PC_FDC
919	select ARCH_MIGHT_HAVE_PC_PARPORT
920	select ARCH_MIGHT_HAVE_PC_SERIO
921	select BOOT_ELF32
922	select CEVT_R4K
923	select CSRC_R4K
924	select DEFAULT_SGI_PARTITION if CPU_BIG_ENDIAN
925	select DMA_NONCOHERENT
926	select GENERIC_ISA_DMA
927	select HAVE_EISA
928	select HAVE_PCSPKR_PLATFORM
929	select HAVE_PCI
930	select IRQ_MIPS_CPU
931	select I8253
932	select I8259
933	select ISA
934	select MIPS_L1_CACHE_SHIFT_6
935	select SWAP_IO_SPACE if CPU_BIG_ENDIAN
936	select SYS_HAS_CPU_R4X00
937	select SYS_HAS_CPU_R5000
938	select SYS_HAS_CPU_R10000
939	select R5000_CPU_SCACHE
940	select SYS_HAS_EARLY_PRINTK
941	select SYS_SUPPORTS_32BIT_KERNEL
942	select SYS_SUPPORTS_64BIT_KERNEL
943	select SYS_SUPPORTS_BIG_ENDIAN
944	select SYS_SUPPORTS_HIGHMEM
945	select SYS_SUPPORTS_LITTLE_ENDIAN
946	select WAR_R4600_V2_HIT_CACHEOP
947	help
948	  The SNI RM200/300/400 are MIPS-based machines manufactured by
949	  Siemens Nixdorf Informationssysteme (SNI), parent company of Pyramid
950	  Technology and now in turn merged with Fujitsu.  Say Y here to
951	  support this machine type.
952
953config MACH_TX39XX
954	bool "Toshiba TX39 series based machines"
955
956config MACH_TX49XX
957	bool "Toshiba TX49 series based machines"
958	select WAR_TX49XX_ICACHE_INDEX_INV
959
960config MIKROTIK_RB532
961	bool "Mikrotik RB532 boards"
962	select CEVT_R4K
963	select CSRC_R4K
964	select DMA_NONCOHERENT
965	select HAVE_PCI
966	select IRQ_MIPS_CPU
967	select SYS_HAS_CPU_MIPS32_R1
968	select SYS_SUPPORTS_32BIT_KERNEL
969	select SYS_SUPPORTS_LITTLE_ENDIAN
970	select SWAP_IO_SPACE
971	select BOOT_RAW
972	select GPIOLIB
973	select MIPS_L1_CACHE_SHIFT_4
974	help
975	  Support the Mikrotik(tm) RouterBoard 532 series,
976	  based on the IDT RC32434 SoC.
977
978config CAVIUM_OCTEON_SOC
979	bool "Cavium Networks Octeon SoC based boards"
980	select CEVT_R4K
981	select ARCH_HAS_PHYS_TO_DMA
982	select HAVE_RAPIDIO
983	select PHYS_ADDR_T_64BIT
984	select SYS_SUPPORTS_64BIT_KERNEL
985	select SYS_SUPPORTS_BIG_ENDIAN
986	select EDAC_SUPPORT
987	select EDAC_ATOMIC_SCRUB
988	select SYS_SUPPORTS_LITTLE_ENDIAN
989	select SYS_SUPPORTS_HOTPLUG_CPU if CPU_BIG_ENDIAN
990	select SYS_HAS_EARLY_PRINTK
991	select SYS_HAS_CPU_CAVIUM_OCTEON
992	select HAVE_PCI
993	select HAVE_PLAT_DELAY
994	select HAVE_PLAT_FW_INIT_CMDLINE
995	select HAVE_PLAT_MEMCPY
996	select ZONE_DMA32
997	select HOLES_IN_ZONE
998	select GPIOLIB
999	select USE_OF
1000	select ARCH_SPARSEMEM_ENABLE
1001	select SYS_SUPPORTS_SMP
1002	select NR_CPUS_DEFAULT_64
1003	select MIPS_NR_CPU_NR_MAP_1024
1004	select BUILTIN_DTB
1005	select MTD
1006	select MTD_COMPLEX_MAPPINGS
1007	select SWIOTLB
1008	select SYS_SUPPORTS_RELOCATABLE
1009	help
1010	  This option supports all of the Octeon reference boards from Cavium
1011	  Networks. It builds a kernel that dynamically determines the Octeon
1012	  CPU type and supports all known board reference implementations.
1013	  Some of the supported boards are:
1014		EBT3000
1015		EBH3000
1016		EBH3100
1017		Thunder
1018		Kodama
1019		Hikari
1020	  Say Y here for most Octeon reference boards.
1021
1022config NLM_XLR_BOARD
1023	bool "Netlogic XLR/XLS based systems"
1024	select BOOT_ELF32
1025	select NLM_COMMON
1026	select SYS_HAS_CPU_XLR
1027	select SYS_SUPPORTS_SMP
1028	select HAVE_PCI
1029	select SWAP_IO_SPACE
1030	select SYS_SUPPORTS_32BIT_KERNEL
1031	select SYS_SUPPORTS_64BIT_KERNEL
1032	select PHYS_ADDR_T_64BIT
1033	select SYS_SUPPORTS_BIG_ENDIAN
1034	select SYS_SUPPORTS_HIGHMEM
1035	select NR_CPUS_DEFAULT_32
1036	select CEVT_R4K
1037	select CSRC_R4K
1038	select IRQ_MIPS_CPU
1039	select ZONE_DMA32 if 64BIT
1040	select SYNC_R4K
1041	select SYS_HAS_EARLY_PRINTK
1042	select SYS_SUPPORTS_ZBOOT
1043	select SYS_SUPPORTS_ZBOOT_UART16550
1044	help
1045	  Support for systems based on Netlogic XLR and XLS processors.
1046	  Say Y here if you have a XLR or XLS based board.
1047
1048config NLM_XLP_BOARD
1049	bool "Netlogic XLP based systems"
1050	select BOOT_ELF32
1051	select NLM_COMMON
1052	select SYS_HAS_CPU_XLP
1053	select SYS_SUPPORTS_SMP
1054	select HAVE_PCI
1055	select SYS_SUPPORTS_32BIT_KERNEL
1056	select SYS_SUPPORTS_64BIT_KERNEL
1057	select PHYS_ADDR_T_64BIT
1058	select GPIOLIB
1059	select SYS_SUPPORTS_BIG_ENDIAN
1060	select SYS_SUPPORTS_LITTLE_ENDIAN
1061	select SYS_SUPPORTS_HIGHMEM
1062	select NR_CPUS_DEFAULT_32
1063	select CEVT_R4K
1064	select CSRC_R4K
1065	select IRQ_MIPS_CPU
1066	select ZONE_DMA32 if 64BIT
1067	select SYNC_R4K
1068	select SYS_HAS_EARLY_PRINTK
1069	select USE_OF
1070	select SYS_SUPPORTS_ZBOOT
1071	select SYS_SUPPORTS_ZBOOT_UART16550
1072	help
1073	  This board is based on Netlogic XLP Processor.
1074	  Say Y here if you have a XLP based board.
1075
1076endchoice
1077
1078source "arch/mips/alchemy/Kconfig"
1079source "arch/mips/ath25/Kconfig"
1080source "arch/mips/ath79/Kconfig"
1081source "arch/mips/bcm47xx/Kconfig"
1082source "arch/mips/bcm63xx/Kconfig"
1083source "arch/mips/bmips/Kconfig"
1084source "arch/mips/generic/Kconfig"
1085source "arch/mips/ingenic/Kconfig"
1086source "arch/mips/jazz/Kconfig"
1087source "arch/mips/lantiq/Kconfig"
1088source "arch/mips/pic32/Kconfig"
1089source "arch/mips/pistachio/Kconfig"
1090source "arch/mips/ralink/Kconfig"
1091source "arch/mips/sgi-ip27/Kconfig"
1092source "arch/mips/sibyte/Kconfig"
1093source "arch/mips/txx9/Kconfig"
1094source "arch/mips/vr41xx/Kconfig"
1095source "arch/mips/cavium-octeon/Kconfig"
1096source "arch/mips/loongson2ef/Kconfig"
1097source "arch/mips/loongson32/Kconfig"
1098source "arch/mips/loongson64/Kconfig"
1099source "arch/mips/netlogic/Kconfig"
1100
1101endmenu
1102
1103config GENERIC_HWEIGHT
1104	bool
1105	default y
1106
1107config GENERIC_CALIBRATE_DELAY
1108	bool
1109	default y
1110
1111config SCHED_OMIT_FRAME_POINTER
1112	bool
1113	default y
1114
1115#
1116# Select some configuration options automatically based on user selections.
1117#
1118config FW_ARC
1119	bool
1120
1121config ARCH_MAY_HAVE_PC_FDC
1122	bool
1123
1124config BOOT_RAW
1125	bool
1126
1127config CEVT_BCM1480
1128	bool
1129
1130config CEVT_DS1287
1131	bool
1132
1133config CEVT_GT641XX
1134	bool
1135
1136config CEVT_R4K
1137	bool
1138
1139config CEVT_SB1250
1140	bool
1141
1142config CEVT_TXX9
1143	bool
1144
1145config CSRC_BCM1480
1146	bool
1147
1148config CSRC_IOASIC
1149	bool
1150
1151config CSRC_R4K
1152	select CLOCKSOURCE_WATCHDOG if CPU_FREQ
1153	bool
1154
1155config CSRC_SB1250
1156	bool
1157
1158config MIPS_CLOCK_VSYSCALL
1159	def_bool CSRC_R4K || CLKSRC_MIPS_GIC
1160
1161config GPIO_TXX9
1162	select GPIOLIB
1163	bool
1164
1165config FW_CFE
1166	bool
1167
1168config ARCH_SUPPORTS_UPROBES
1169	bool
1170
1171config DMA_PERDEV_COHERENT
1172	bool
1173	select ARCH_HAS_SETUP_DMA_OPS
1174	select DMA_NONCOHERENT
1175
1176config DMA_NONCOHERENT
1177	bool
1178	#
1179	# MIPS allows mixing "slightly different" Cacheability and Coherency
1180	# Attribute bits.  It is believed that the uncached access through
1181	# KSEG1 and the implementation specific "uncached accelerated" used
1182	# by pgprot_writcombine can be mixed, and the latter sometimes provides
1183	# significant advantages.
1184	#
1185	select ARCH_HAS_DMA_WRITE_COMBINE
1186	select ARCH_HAS_DMA_PREP_COHERENT
1187	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
1188	select ARCH_HAS_DMA_SET_UNCACHED
1189	select DMA_NONCOHERENT_MMAP
1190	select NEED_DMA_MAP_STATE
1191
1192config SYS_HAS_EARLY_PRINTK
1193	bool
1194
1195config SYS_SUPPORTS_HOTPLUG_CPU
1196	bool
1197
1198config MIPS_BONITO64
1199	bool
1200
1201config MIPS_MSC
1202	bool
1203
1204config SYNC_R4K
1205	bool
1206
1207config NO_IOPORT_MAP
1208	def_bool n
1209
1210config GENERIC_CSUM
1211	def_bool CPU_NO_LOAD_STORE_LR
1212
1213config GENERIC_ISA_DMA
1214	bool
1215	select ZONE_DMA if GENERIC_ISA_DMA_SUPPORT_BROKEN=n
1216	select ISA_DMA_API
1217
1218config GENERIC_ISA_DMA_SUPPORT_BROKEN
1219	bool
1220	select GENERIC_ISA_DMA
1221
1222config HAVE_PLAT_DELAY
1223	bool
1224
1225config HAVE_PLAT_FW_INIT_CMDLINE
1226	bool
1227
1228config HAVE_PLAT_MEMCPY
1229	bool
1230
1231config ISA_DMA_API
1232	bool
1233
1234config HOLES_IN_ZONE
1235	bool
1236
1237config SYS_SUPPORTS_RELOCATABLE
1238	bool
1239	help
1240	  Selected if the platform supports relocating the kernel.
1241	  The platform must provide plat_get_fdt() if it selects CONFIG_USE_OF
1242	  to allow access to command line and entropy sources.
1243
1244config MIPS_CBPF_JIT
1245	def_bool y
1246	depends on BPF_JIT && HAVE_CBPF_JIT
1247
1248config MIPS_EBPF_JIT
1249	def_bool y
1250	depends on BPF_JIT && HAVE_EBPF_JIT
1251
1252
1253#
1254# Endianness selection.  Sufficiently obscure so many users don't know what to
1255# answer,so we try hard to limit the available choices.  Also the use of a
1256# choice statement should be more obvious to the user.
1257#
1258choice
1259	prompt "Endianness selection"
1260	help
1261	  Some MIPS machines can be configured for either little or big endian
1262	  byte order. These modes require different kernels and a different
1263	  Linux distribution.  In general there is one preferred byteorder for a
1264	  particular system but some systems are just as commonly used in the
1265	  one or the other endianness.
1266
1267config CPU_BIG_ENDIAN
1268	bool "Big endian"
1269	depends on SYS_SUPPORTS_BIG_ENDIAN
1270
1271config CPU_LITTLE_ENDIAN
1272	bool "Little endian"
1273	depends on SYS_SUPPORTS_LITTLE_ENDIAN
1274
1275endchoice
1276
1277config EXPORT_UASM
1278	bool
1279
1280config SYS_SUPPORTS_APM_EMULATION
1281	bool
1282
1283config SYS_SUPPORTS_BIG_ENDIAN
1284	bool
1285
1286config SYS_SUPPORTS_LITTLE_ENDIAN
1287	bool
1288
1289config SYS_SUPPORTS_HUGETLBFS
1290	bool
1291	depends on CPU_SUPPORTS_HUGEPAGES
1292	default y
1293
1294config MIPS_HUGE_TLB_SUPPORT
1295	def_bool HUGETLB_PAGE || TRANSPARENT_HUGEPAGE
1296
1297config IRQ_MSP_SLP
1298	bool
1299
1300config IRQ_MSP_CIC
1301	bool
1302
1303config IRQ_TXX9
1304	bool
1305
1306config IRQ_GT641XX
1307	bool
1308
1309config PCI_GT64XXX_PCI0
1310	bool
1311
1312config PCI_XTALK_BRIDGE
1313	bool
1314
1315config NO_EXCEPT_FILL
1316	bool
1317
1318config MIPS_SPRAM
1319	bool
1320
1321config SWAP_IO_SPACE
1322	bool
1323
1324config SGI_HAS_INDYDOG
1325	bool
1326
1327config SGI_HAS_HAL2
1328	bool
1329
1330config SGI_HAS_SEEQ
1331	bool
1332
1333config SGI_HAS_WD93
1334	bool
1335
1336config SGI_HAS_ZILOG
1337	bool
1338
1339config SGI_HAS_I8042
1340	bool
1341
1342config DEFAULT_SGI_PARTITION
1343	bool
1344
1345config FW_ARC32
1346	bool
1347
1348config FW_SNIPROM
1349	bool
1350
1351config BOOT_ELF32
1352	bool
1353
1354config MIPS_L1_CACHE_SHIFT_4
1355	bool
1356
1357config MIPS_L1_CACHE_SHIFT_5
1358	bool
1359
1360config MIPS_L1_CACHE_SHIFT_6
1361	bool
1362
1363config MIPS_L1_CACHE_SHIFT_7
1364	bool
1365
1366config MIPS_L1_CACHE_SHIFT
1367	int
1368	default "7" if MIPS_L1_CACHE_SHIFT_7
1369	default "6" if MIPS_L1_CACHE_SHIFT_6
1370	default "5" if MIPS_L1_CACHE_SHIFT_5
1371	default "4" if MIPS_L1_CACHE_SHIFT_4
1372	default "5"
1373
1374config ARC_CMDLINE_ONLY
1375	bool
1376
1377config ARC_CONSOLE
1378	bool "ARC console support"
1379	depends on SGI_IP22 || SGI_IP28 || (SNI_RM && CPU_LITTLE_ENDIAN)
1380
1381config ARC_MEMORY
1382	bool
1383
1384config ARC_PROMLIB
1385	bool
1386
1387config FW_ARC64
1388	bool
1389
1390config BOOT_ELF64
1391	bool
1392
1393menu "CPU selection"
1394
1395choice
1396	prompt "CPU type"
1397	default CPU_R4X00
1398
1399config CPU_LOONGSON64
1400	bool "Loongson 64-bit CPU"
1401	depends on SYS_HAS_CPU_LOONGSON64
1402	select ARCH_HAS_PHYS_TO_DMA
1403	select CPU_MIPSR2
1404	select CPU_HAS_PREFETCH
1405	select CPU_SUPPORTS_64BIT_KERNEL
1406	select CPU_SUPPORTS_HIGHMEM
1407	select CPU_SUPPORTS_HUGEPAGES
1408	select CPU_SUPPORTS_MSA
1409	select CPU_DIEI_BROKEN if !LOONGSON3_ENHANCEMENT
1410	select CPU_MIPSR2_IRQ_VI
1411	select WEAK_ORDERING
1412	select WEAK_REORDERING_BEYOND_LLSC
1413	select MIPS_ASID_BITS_VARIABLE
1414	select MIPS_PGD_C0_CONTEXT
1415	select MIPS_L1_CACHE_SHIFT_6
1416	select GPIOLIB
1417	select SWIOTLB
1418	select HAVE_KVM
1419	help
1420		The Loongson GSx64(GS264/GS464/GS464E/GS464V) series of processor
1421		cores implements the MIPS64R2 instruction set with many extensions,
1422		including most 64-bit Loongson-2 (2H, 2K) and Loongson-3 (3A1000,
1423		3B1000, 3B1500, 3A2000, 3A3000 and 3A4000) processors. However, old
1424		Loongson-2E/2F is not covered here and will be removed in future.
1425
1426config LOONGSON3_ENHANCEMENT
1427	bool "New Loongson-3 CPU Enhancements"
1428	default n
1429	depends on CPU_LOONGSON64
1430	help
1431	  New Loongson-3 cores (since Loongson-3A R2, as opposed to Loongson-3A
1432	  R1, Loongson-3B R1 and Loongson-3B R2) has many enhancements, such as
1433	  FTLB, L1-VCache, EI/DI/Wait/Prefetch instruction, DSP/DSPr2 ASE, User
1434	  Local register, Read-Inhibit/Execute-Inhibit, SFB (Store Fill Buffer),
1435	  Fast TLB refill support, etc.
1436
1437	  This option enable those enhancements which are not probed at run
1438	  time. If you want a generic kernel to run on all Loongson 3 machines,
1439	  please say 'N' here. If you want a high-performance kernel to run on
1440	  new Loongson-3 machines only, please say 'Y' here.
1441
1442config CPU_LOONGSON3_WORKAROUNDS
1443	bool "Old Loongson-3 LLSC Workarounds"
1444	default y if SMP
1445	depends on CPU_LOONGSON64
1446	help
1447	  Loongson-3 processors have the llsc issues which require workarounds.
1448	  Without workarounds the system may hang unexpectedly.
1449
1450	  Newer Loongson-3 will fix these issues and no workarounds are needed.
1451	  The workarounds have no significant side effect on them but may
1452	  decrease the performance of the system so this option should be
1453	  disabled unless the kernel is intended to be run on old systems.
1454
1455	  If unsure, please say Y.
1456
1457config CPU_LOONGSON3_CPUCFG_EMULATION
1458	bool "Emulate the CPUCFG instruction on older Loongson cores"
1459	default y
1460	depends on CPU_LOONGSON64
1461	help
1462	  Loongson-3A R4 and newer have the CPUCFG instruction available for
1463	  userland to query CPU capabilities, much like CPUID on x86. This
1464	  option provides emulation of the instruction on older Loongson
1465	  cores, back to Loongson-3A1000.
1466
1467	  If unsure, please say Y.
1468
1469config CPU_LOONGSON2E
1470	bool "Loongson 2E"
1471	depends on SYS_HAS_CPU_LOONGSON2E
1472	select CPU_LOONGSON2EF
1473	help
1474	  The Loongson 2E processor implements the MIPS III instruction set
1475	  with many extensions.
1476
1477	  It has an internal FPGA northbridge, which is compatible to
1478	  bonito64.
1479
1480config CPU_LOONGSON2F
1481	bool "Loongson 2F"
1482	depends on SYS_HAS_CPU_LOONGSON2F
1483	select CPU_LOONGSON2EF
1484	select GPIOLIB
1485	help
1486	  The Loongson 2F processor implements the MIPS III instruction set
1487	  with many extensions.
1488
1489	  Loongson2F have built-in DDR2 and PCIX controller. The PCIX controller
1490	  have a similar programming interface with FPGA northbridge used in
1491	  Loongson2E.
1492
1493config CPU_LOONGSON1B
1494	bool "Loongson 1B"
1495	depends on SYS_HAS_CPU_LOONGSON1B
1496	select CPU_LOONGSON32
1497	select LEDS_GPIO_REGISTER
1498	help
1499	  The Loongson 1B is a 32-bit SoC, which implements the MIPS32
1500	  Release 1 instruction set and part of the MIPS32 Release 2
1501	  instruction set.
1502
1503config CPU_LOONGSON1C
1504	bool "Loongson 1C"
1505	depends on SYS_HAS_CPU_LOONGSON1C
1506	select CPU_LOONGSON32
1507	select LEDS_GPIO_REGISTER
1508	help
1509	  The Loongson 1C is a 32-bit SoC, which implements the MIPS32
1510	  Release 1 instruction set and part of the MIPS32 Release 2
1511	  instruction set.
1512
1513config CPU_MIPS32_R1
1514	bool "MIPS32 Release 1"
1515	depends on SYS_HAS_CPU_MIPS32_R1
1516	select CPU_HAS_PREFETCH
1517	select CPU_SUPPORTS_32BIT_KERNEL
1518	select CPU_SUPPORTS_HIGHMEM
1519	help
1520	  Choose this option to build a kernel for release 1 or later of the
1521	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1522	  MIPS processor are based on a MIPS32 processor.  If you know the
1523	  specific type of processor in your system, choose those that one
1524	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1525	  Release 2 of the MIPS32 architecture is available since several
1526	  years so chances are you even have a MIPS32 Release 2 processor
1527	  in which case you should choose CPU_MIPS32_R2 instead for better
1528	  performance.
1529
1530config CPU_MIPS32_R2
1531	bool "MIPS32 Release 2"
1532	depends on SYS_HAS_CPU_MIPS32_R2
1533	select CPU_HAS_PREFETCH
1534	select CPU_SUPPORTS_32BIT_KERNEL
1535	select CPU_SUPPORTS_HIGHMEM
1536	select CPU_SUPPORTS_MSA
1537	select HAVE_KVM
1538	help
1539	  Choose this option to build a kernel for release 2 or later of the
1540	  MIPS32 architecture.  Most modern embedded systems with a 32-bit
1541	  MIPS processor are based on a MIPS32 processor.  If you know the
1542	  specific type of processor in your system, choose those that one
1543	  otherwise CPU_MIPS32_R1 is a safe bet for any MIPS32 system.
1544
1545config CPU_MIPS32_R5
1546	bool "MIPS32 Release 5"
1547	depends on SYS_HAS_CPU_MIPS32_R5
1548	select CPU_HAS_PREFETCH
1549	select CPU_SUPPORTS_32BIT_KERNEL
1550	select CPU_SUPPORTS_HIGHMEM
1551	select CPU_SUPPORTS_MSA
1552	select HAVE_KVM
1553	select MIPS_O32_FP64_SUPPORT
1554	help
1555	  Choose this option to build a kernel for release 5 or later of the
1556	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1557	  family, are based on a MIPS32r5 processor. If you own an older
1558	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1559
1560config CPU_MIPS32_R6
1561	bool "MIPS32 Release 6"
1562	depends on SYS_HAS_CPU_MIPS32_R6
1563	select CPU_HAS_PREFETCH
1564	select CPU_NO_LOAD_STORE_LR
1565	select CPU_SUPPORTS_32BIT_KERNEL
1566	select CPU_SUPPORTS_HIGHMEM
1567	select CPU_SUPPORTS_MSA
1568	select HAVE_KVM
1569	select MIPS_O32_FP64_SUPPORT
1570	help
1571	  Choose this option to build a kernel for release 6 or later of the
1572	  MIPS32 architecture.  New MIPS processors, starting with the Warrior
1573	  family, are based on a MIPS32r6 processor. If you own an older
1574	  processor, you probably need to select MIPS32r1 or MIPS32r2 instead.
1575
1576config CPU_MIPS64_R1
1577	bool "MIPS64 Release 1"
1578	depends on SYS_HAS_CPU_MIPS64_R1
1579	select CPU_HAS_PREFETCH
1580	select CPU_SUPPORTS_32BIT_KERNEL
1581	select CPU_SUPPORTS_64BIT_KERNEL
1582	select CPU_SUPPORTS_HIGHMEM
1583	select CPU_SUPPORTS_HUGEPAGES
1584	help
1585	  Choose this option to build a kernel for release 1 or later of the
1586	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1587	  MIPS processor are based on a MIPS64 processor.  If you know the
1588	  specific type of processor in your system, choose those that one
1589	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1590	  Release 2 of the MIPS64 architecture is available since several
1591	  years so chances are you even have a MIPS64 Release 2 processor
1592	  in which case you should choose CPU_MIPS64_R2 instead for better
1593	  performance.
1594
1595config CPU_MIPS64_R2
1596	bool "MIPS64 Release 2"
1597	depends on SYS_HAS_CPU_MIPS64_R2
1598	select CPU_HAS_PREFETCH
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 HAVE_KVM
1605	help
1606	  Choose this option to build a kernel for release 2 or later of the
1607	  MIPS64 architecture.  Many modern embedded systems with a 64-bit
1608	  MIPS processor are based on a MIPS64 processor.  If you know the
1609	  specific type of processor in your system, choose those that one
1610	  otherwise CPU_MIPS64_R1 is a safe bet for any MIPS64 system.
1611
1612config CPU_MIPS64_R5
1613	bool "MIPS64 Release 5"
1614	depends on SYS_HAS_CPU_MIPS64_R5
1615	select CPU_HAS_PREFETCH
1616	select CPU_SUPPORTS_32BIT_KERNEL
1617	select CPU_SUPPORTS_64BIT_KERNEL
1618	select CPU_SUPPORTS_HIGHMEM
1619	select CPU_SUPPORTS_HUGEPAGES
1620	select CPU_SUPPORTS_MSA
1621	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1622	select HAVE_KVM
1623	help
1624	  Choose this option to build a kernel for release 5 or later of the
1625	  MIPS64 architecture.  This is a intermediate MIPS architecture
1626	  release partly implementing release 6 features. Though there is no
1627	  any hardware known to be based on this release.
1628
1629config CPU_MIPS64_R6
1630	bool "MIPS64 Release 6"
1631	depends on SYS_HAS_CPU_MIPS64_R6
1632	select CPU_HAS_PREFETCH
1633	select CPU_NO_LOAD_STORE_LR
1634	select CPU_SUPPORTS_32BIT_KERNEL
1635	select CPU_SUPPORTS_64BIT_KERNEL
1636	select CPU_SUPPORTS_HIGHMEM
1637	select CPU_SUPPORTS_HUGEPAGES
1638	select CPU_SUPPORTS_MSA
1639	select MIPS_O32_FP64_SUPPORT if 32BIT || MIPS32_O32
1640	select HAVE_KVM
1641	help
1642	  Choose this option to build a kernel for release 6 or later of the
1643	  MIPS64 architecture.  New MIPS processors, starting with the Warrior
1644	  family, are based on a MIPS64r6 processor. If you own an older
1645	  processor, you probably need to select MIPS64r1 or MIPS64r2 instead.
1646
1647config CPU_P5600
1648	bool "MIPS Warrior P5600"
1649	depends on SYS_HAS_CPU_P5600
1650	select CPU_HAS_PREFETCH
1651	select CPU_SUPPORTS_32BIT_KERNEL
1652	select CPU_SUPPORTS_HIGHMEM
1653	select CPU_SUPPORTS_MSA
1654	select CPU_SUPPORTS_CPUFREQ
1655	select CPU_MIPSR2_IRQ_VI
1656	select CPU_MIPSR2_IRQ_EI
1657	select HAVE_KVM
1658	select MIPS_O32_FP64_SUPPORT
1659	help
1660	  Choose this option to build a kernel for MIPS Warrior P5600 CPU.
1661	  It's based on MIPS32r5 ISA with XPA, EVA, dual/quad issue exec pipes,
1662	  MMU with two-levels TLB, UCA, MSA, MDU core level features and system
1663	  level features like up to six P5600 calculation cores, CM2 with L2
1664	  cache, IOCU/IOMMU (though might be unused depending on the system-
1665	  specific IP core configuration), GIC, CPC, virtualisation module,
1666	  eJTAG and PDtrace.
1667
1668config CPU_R3000
1669	bool "R3000"
1670	depends on SYS_HAS_CPU_R3000
1671	select CPU_HAS_WB
1672	select CPU_R3K_TLB
1673	select CPU_SUPPORTS_32BIT_KERNEL
1674	select CPU_SUPPORTS_HIGHMEM
1675	help
1676	  Please make sure to pick the right CPU type. Linux/MIPS is not
1677	  designed to be generic, i.e. Kernels compiled for R3000 CPUs will
1678	  *not* work on R4000 machines and vice versa.  However, since most
1679	  of the supported machines have an R4000 (or similar) CPU, R4x00
1680	  might be a safe bet.  If the resulting kernel does not work,
1681	  try to recompile with R3000.
1682
1683config CPU_TX39XX
1684	bool "R39XX"
1685	depends on SYS_HAS_CPU_TX39XX
1686	select CPU_SUPPORTS_32BIT_KERNEL
1687	select CPU_R3K_TLB
1688
1689config CPU_VR41XX
1690	bool "R41xx"
1691	depends on SYS_HAS_CPU_VR41XX
1692	select CPU_SUPPORTS_32BIT_KERNEL
1693	select CPU_SUPPORTS_64BIT_KERNEL
1694	help
1695	  The options selects support for the NEC VR4100 series of processors.
1696	  Only choose this option if you have one of these processors as a
1697	  kernel built with this option will not run on any other type of
1698	  processor or vice versa.
1699
1700config CPU_R4300
1701	bool "R4300"
1702	depends on SYS_HAS_CPU_R4300
1703	select CPU_SUPPORTS_32BIT_KERNEL
1704	select CPU_SUPPORTS_64BIT_KERNEL
1705	select CPU_HAS_LOAD_STORE_LR
1706	help
1707	  MIPS Technologies R4300-series processors.
1708
1709config CPU_R4X00
1710	bool "R4x00"
1711	depends on SYS_HAS_CPU_R4X00
1712	select CPU_SUPPORTS_32BIT_KERNEL
1713	select CPU_SUPPORTS_64BIT_KERNEL
1714	select CPU_SUPPORTS_HUGEPAGES
1715	help
1716	  MIPS Technologies R4000-series processors other than 4300, including
1717	  the R4000, R4400, R4600, and 4700.
1718
1719config CPU_TX49XX
1720	bool "R49XX"
1721	depends on SYS_HAS_CPU_TX49XX
1722	select CPU_HAS_PREFETCH
1723	select CPU_SUPPORTS_32BIT_KERNEL
1724	select CPU_SUPPORTS_64BIT_KERNEL
1725	select CPU_SUPPORTS_HUGEPAGES
1726
1727config CPU_R5000
1728	bool "R5000"
1729	depends on SYS_HAS_CPU_R5000
1730	select CPU_SUPPORTS_32BIT_KERNEL
1731	select CPU_SUPPORTS_64BIT_KERNEL
1732	select CPU_SUPPORTS_HUGEPAGES
1733	help
1734	  MIPS Technologies R5000-series processors other than the Nevada.
1735
1736config CPU_R5500
1737	bool "R5500"
1738	depends on SYS_HAS_CPU_R5500
1739	select CPU_SUPPORTS_32BIT_KERNEL
1740	select CPU_SUPPORTS_64BIT_KERNEL
1741	select CPU_SUPPORTS_HUGEPAGES
1742	help
1743	  NEC VR5500 and VR5500A series processors implement 64-bit MIPS IV
1744	  instruction set.
1745
1746config CPU_NEVADA
1747	bool "RM52xx"
1748	depends on SYS_HAS_CPU_NEVADA
1749	select CPU_SUPPORTS_32BIT_KERNEL
1750	select CPU_SUPPORTS_64BIT_KERNEL
1751	select CPU_SUPPORTS_HUGEPAGES
1752	help
1753	  QED / PMC-Sierra RM52xx-series ("Nevada") processors.
1754
1755config CPU_R10000
1756	bool "R10000"
1757	depends on SYS_HAS_CPU_R10000
1758	select CPU_HAS_PREFETCH
1759	select CPU_SUPPORTS_32BIT_KERNEL
1760	select CPU_SUPPORTS_64BIT_KERNEL
1761	select CPU_SUPPORTS_HIGHMEM
1762	select CPU_SUPPORTS_HUGEPAGES
1763	help
1764	  MIPS Technologies R10000-series processors.
1765
1766config CPU_RM7000
1767	bool "RM7000"
1768	depends on SYS_HAS_CPU_RM7000
1769	select CPU_HAS_PREFETCH
1770	select CPU_SUPPORTS_32BIT_KERNEL
1771	select CPU_SUPPORTS_64BIT_KERNEL
1772	select CPU_SUPPORTS_HIGHMEM
1773	select CPU_SUPPORTS_HUGEPAGES
1774
1775config CPU_SB1
1776	bool "SB1"
1777	depends on SYS_HAS_CPU_SB1
1778	select CPU_SUPPORTS_32BIT_KERNEL
1779	select CPU_SUPPORTS_64BIT_KERNEL
1780	select CPU_SUPPORTS_HIGHMEM
1781	select CPU_SUPPORTS_HUGEPAGES
1782	select WEAK_ORDERING
1783
1784config CPU_CAVIUM_OCTEON
1785	bool "Cavium Octeon processor"
1786	depends on SYS_HAS_CPU_CAVIUM_OCTEON
1787	select CPU_HAS_PREFETCH
1788	select CPU_SUPPORTS_64BIT_KERNEL
1789	select WEAK_ORDERING
1790	select CPU_SUPPORTS_HIGHMEM
1791	select CPU_SUPPORTS_HUGEPAGES
1792	select USB_EHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1793	select USB_OHCI_BIG_ENDIAN_MMIO if CPU_BIG_ENDIAN
1794	select MIPS_L1_CACHE_SHIFT_7
1795	select HAVE_KVM
1796	help
1797	  The Cavium Octeon processor is a highly integrated chip containing
1798	  many ethernet hardware widgets for networking tasks. The processor
1799	  can have up to 16 Mips64v2 cores and 8 integrated gigabit ethernets.
1800	  Full details can be found at http://www.caviumnetworks.com.
1801
1802config CPU_BMIPS
1803	bool "Broadcom BMIPS"
1804	depends on SYS_HAS_CPU_BMIPS
1805	select CPU_MIPS32
1806	select CPU_BMIPS32_3300 if SYS_HAS_CPU_BMIPS32_3300
1807	select CPU_BMIPS4350 if SYS_HAS_CPU_BMIPS4350
1808	select CPU_BMIPS4380 if SYS_HAS_CPU_BMIPS4380
1809	select CPU_BMIPS5000 if SYS_HAS_CPU_BMIPS5000
1810	select CPU_SUPPORTS_32BIT_KERNEL
1811	select DMA_NONCOHERENT
1812	select IRQ_MIPS_CPU
1813	select SWAP_IO_SPACE
1814	select WEAK_ORDERING
1815	select CPU_SUPPORTS_HIGHMEM
1816	select CPU_HAS_PREFETCH
1817	select CPU_SUPPORTS_CPUFREQ
1818	select MIPS_EXTERNAL_TIMER
1819	help
1820	  Support for BMIPS32/3300/4350/4380 and BMIPS5000 processors.
1821
1822config CPU_XLR
1823	bool "Netlogic XLR SoC"
1824	depends on SYS_HAS_CPU_XLR
1825	select CPU_SUPPORTS_32BIT_KERNEL
1826	select CPU_SUPPORTS_64BIT_KERNEL
1827	select CPU_SUPPORTS_HIGHMEM
1828	select CPU_SUPPORTS_HUGEPAGES
1829	select WEAK_ORDERING
1830	select WEAK_REORDERING_BEYOND_LLSC
1831	help
1832	  Netlogic Microsystems XLR/XLS processors.
1833
1834config CPU_XLP
1835	bool "Netlogic XLP SoC"
1836	depends on SYS_HAS_CPU_XLP
1837	select CPU_SUPPORTS_32BIT_KERNEL
1838	select CPU_SUPPORTS_64BIT_KERNEL
1839	select CPU_SUPPORTS_HIGHMEM
1840	select WEAK_ORDERING
1841	select WEAK_REORDERING_BEYOND_LLSC
1842	select CPU_HAS_PREFETCH
1843	select CPU_MIPSR2
1844	select CPU_SUPPORTS_HUGEPAGES
1845	select MIPS_ASID_BITS_VARIABLE
1846	help
1847	  Netlogic Microsystems XLP processors.
1848endchoice
1849
1850config CPU_MIPS32_3_5_FEATURES
1851	bool "MIPS32 Release 3.5 Features"
1852	depends on SYS_HAS_CPU_MIPS32_R3_5
1853	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_MIPS32_R6 || \
1854		   CPU_P5600
1855	help
1856	  Choose this option to build a kernel for release 2 or later of the
1857	  MIPS32 architecture including features from the 3.5 release such as
1858	  support for Enhanced Virtual Addressing (EVA).
1859
1860config CPU_MIPS32_3_5_EVA
1861	bool "Enhanced Virtual Addressing (EVA)"
1862	depends on CPU_MIPS32_3_5_FEATURES
1863	select EVA
1864	default y
1865	help
1866	  Choose this option if you want to enable the Enhanced Virtual
1867	  Addressing (EVA) on your MIPS32 core (such as proAptiv).
1868	  One of its primary benefits is an increase in the maximum size
1869	  of lowmem (up to 3GB). If unsure, say 'N' here.
1870
1871config CPU_MIPS32_R5_FEATURES
1872	bool "MIPS32 Release 5 Features"
1873	depends on SYS_HAS_CPU_MIPS32_R5
1874	depends on CPU_MIPS32_R2 || CPU_MIPS32_R5 || CPU_P5600
1875	help
1876	  Choose this option to build a kernel for release 2 or later of the
1877	  MIPS32 architecture including features from release 5 such as
1878	  support for Extended Physical Addressing (XPA).
1879
1880config CPU_MIPS32_R5_XPA
1881	bool "Extended Physical Addressing (XPA)"
1882	depends on CPU_MIPS32_R5_FEATURES
1883	depends on !EVA
1884	depends on !PAGE_SIZE_4KB
1885	depends on SYS_SUPPORTS_HIGHMEM
1886	select XPA
1887	select HIGHMEM
1888	select PHYS_ADDR_T_64BIT
1889	default n
1890	help
1891	  Choose this option if you want to enable the Extended Physical
1892	  Addressing (XPA) on your MIPS32 core (such as P5600 series). The
1893	  benefit is to increase physical addressing equal to or greater
1894	  than 40 bits. Note that this has the side effect of turning on
1895	  64-bit addressing which in turn makes the PTEs 64-bit in size.
1896	  If unsure, say 'N' here.
1897
1898if CPU_LOONGSON2F
1899config CPU_NOP_WORKAROUNDS
1900	bool
1901
1902config CPU_JUMP_WORKAROUNDS
1903	bool
1904
1905config CPU_LOONGSON2F_WORKAROUNDS
1906	bool "Loongson 2F Workarounds"
1907	default y
1908	select CPU_NOP_WORKAROUNDS
1909	select CPU_JUMP_WORKAROUNDS
1910	help
1911	  Loongson 2F01 / 2F02 processors have the NOP & JUMP issues which
1912	  require workarounds.  Without workarounds the system may hang
1913	  unexpectedly.  For more information please refer to the gas
1914	  -mfix-loongson2f-nop and -mfix-loongson2f-jump options.
1915
1916	  Loongson 2F03 and later have fixed these issues and no workarounds
1917	  are needed.  The workarounds have no significant side effect on them
1918	  but may decrease the performance of the system so this option should
1919	  be disabled unless the kernel is intended to be run on 2F01 or 2F02
1920	  systems.
1921
1922	  If unsure, please say Y.
1923endif # CPU_LOONGSON2F
1924
1925config SYS_SUPPORTS_ZBOOT
1926	bool
1927	select HAVE_KERNEL_GZIP
1928	select HAVE_KERNEL_BZIP2
1929	select HAVE_KERNEL_LZ4
1930	select HAVE_KERNEL_LZMA
1931	select HAVE_KERNEL_LZO
1932	select HAVE_KERNEL_XZ
1933	select HAVE_KERNEL_ZSTD
1934
1935config SYS_SUPPORTS_ZBOOT_UART16550
1936	bool
1937	select SYS_SUPPORTS_ZBOOT
1938
1939config SYS_SUPPORTS_ZBOOT_UART_PROM
1940	bool
1941	select SYS_SUPPORTS_ZBOOT
1942
1943config CPU_LOONGSON2EF
1944	bool
1945	select CPU_SUPPORTS_32BIT_KERNEL
1946	select CPU_SUPPORTS_64BIT_KERNEL
1947	select CPU_SUPPORTS_HIGHMEM
1948	select CPU_SUPPORTS_HUGEPAGES
1949	select ARCH_HAS_PHYS_TO_DMA
1950
1951config CPU_LOONGSON32
1952	bool
1953	select CPU_MIPS32
1954	select CPU_MIPSR2
1955	select CPU_HAS_PREFETCH
1956	select CPU_SUPPORTS_32BIT_KERNEL
1957	select CPU_SUPPORTS_HIGHMEM
1958	select CPU_SUPPORTS_CPUFREQ
1959
1960config CPU_BMIPS32_3300
1961	select SMP_UP if SMP
1962	bool
1963
1964config CPU_BMIPS4350
1965	bool
1966	select SYS_SUPPORTS_SMP
1967	select SYS_SUPPORTS_HOTPLUG_CPU
1968
1969config CPU_BMIPS4380
1970	bool
1971	select MIPS_L1_CACHE_SHIFT_6
1972	select SYS_SUPPORTS_SMP
1973	select SYS_SUPPORTS_HOTPLUG_CPU
1974	select CPU_HAS_RIXI
1975
1976config CPU_BMIPS5000
1977	bool
1978	select MIPS_CPU_SCACHE
1979	select MIPS_L1_CACHE_SHIFT_7
1980	select SYS_SUPPORTS_SMP
1981	select SYS_SUPPORTS_HOTPLUG_CPU
1982	select CPU_HAS_RIXI
1983
1984config SYS_HAS_CPU_LOONGSON64
1985	bool
1986	select CPU_SUPPORTS_CPUFREQ
1987	select CPU_HAS_RIXI
1988
1989config SYS_HAS_CPU_LOONGSON2E
1990	bool
1991
1992config SYS_HAS_CPU_LOONGSON2F
1993	bool
1994	select CPU_SUPPORTS_CPUFREQ
1995	select CPU_SUPPORTS_ADDRWINCFG if 64BIT
1996
1997config SYS_HAS_CPU_LOONGSON1B
1998	bool
1999
2000config SYS_HAS_CPU_LOONGSON1C
2001	bool
2002
2003config SYS_HAS_CPU_MIPS32_R1
2004	bool
2005
2006config SYS_HAS_CPU_MIPS32_R2
2007	bool
2008
2009config SYS_HAS_CPU_MIPS32_R3_5
2010	bool
2011
2012config SYS_HAS_CPU_MIPS32_R5
2013	bool
2014	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2015
2016config SYS_HAS_CPU_MIPS32_R6
2017	bool
2018	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2019
2020config SYS_HAS_CPU_MIPS64_R1
2021	bool
2022
2023config SYS_HAS_CPU_MIPS64_R2
2024	bool
2025
2026config SYS_HAS_CPU_MIPS64_R6
2027	bool
2028	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2029
2030config SYS_HAS_CPU_P5600
2031	bool
2032	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2033
2034config SYS_HAS_CPU_R3000
2035	bool
2036
2037config SYS_HAS_CPU_TX39XX
2038	bool
2039
2040config SYS_HAS_CPU_VR41XX
2041	bool
2042
2043config SYS_HAS_CPU_R4300
2044	bool
2045
2046config SYS_HAS_CPU_R4X00
2047	bool
2048
2049config SYS_HAS_CPU_TX49XX
2050	bool
2051
2052config SYS_HAS_CPU_R5000
2053	bool
2054
2055config SYS_HAS_CPU_R5500
2056	bool
2057
2058config SYS_HAS_CPU_NEVADA
2059	bool
2060
2061config SYS_HAS_CPU_R10000
2062	bool
2063	select ARCH_HAS_SYNC_DMA_FOR_CPU if DMA_NONCOHERENT
2064
2065config SYS_HAS_CPU_RM7000
2066	bool
2067
2068config SYS_HAS_CPU_SB1
2069	bool
2070
2071config SYS_HAS_CPU_CAVIUM_OCTEON
2072	bool
2073
2074config SYS_HAS_CPU_BMIPS
2075	bool
2076
2077config SYS_HAS_CPU_BMIPS32_3300
2078	bool
2079	select SYS_HAS_CPU_BMIPS
2080
2081config SYS_HAS_CPU_BMIPS4350
2082	bool
2083	select SYS_HAS_CPU_BMIPS
2084
2085config SYS_HAS_CPU_BMIPS4380
2086	bool
2087	select SYS_HAS_CPU_BMIPS
2088
2089config SYS_HAS_CPU_BMIPS5000
2090	bool
2091	select SYS_HAS_CPU_BMIPS
2092	select ARCH_HAS_SYNC_DMA_FOR_CPU
2093
2094config SYS_HAS_CPU_XLR
2095	bool
2096
2097config SYS_HAS_CPU_XLP
2098	bool
2099
2100#
2101# CPU may reorder R->R, R->W, W->R, W->W
2102# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
2103#
2104config WEAK_ORDERING
2105	bool
2106
2107#
2108# CPU may reorder reads and writes beyond LL/SC
2109# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
2110#
2111config WEAK_REORDERING_BEYOND_LLSC
2112	bool
2113endmenu
2114
2115#
2116# These two indicate any level of the MIPS32 and MIPS64 architecture
2117#
2118config CPU_MIPS32
2119	bool
2120	default y if CPU_MIPS32_R1 || CPU_MIPS32_R2 || CPU_MIPS32_R5 || \
2121		     CPU_MIPS32_R6 || CPU_P5600
2122
2123config CPU_MIPS64
2124	bool
2125	default y if CPU_MIPS64_R1 || CPU_MIPS64_R2 || CPU_MIPS64_R5 || \
2126		     CPU_MIPS64_R6 || CPU_LOONGSON64 || CPU_CAVIUM_OCTEON
2127
2128#
2129# These indicate the revision of the architecture
2130#
2131config CPU_MIPSR1
2132	bool
2133	default y if CPU_MIPS32_R1 || CPU_MIPS64_R1
2134
2135config CPU_MIPSR2
2136	bool
2137	default y if CPU_MIPS32_R2 || CPU_MIPS64_R2 || CPU_CAVIUM_OCTEON
2138	select CPU_HAS_RIXI
2139	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2140	select MIPS_SPRAM
2141
2142config CPU_MIPSR5
2143	bool
2144	default y if CPU_MIPS32_R5 || CPU_MIPS64_R5 || CPU_P5600
2145	select CPU_HAS_RIXI
2146	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2147	select MIPS_SPRAM
2148
2149config CPU_MIPSR6
2150	bool
2151	default y if CPU_MIPS32_R6 || CPU_MIPS64_R6
2152	select CPU_HAS_RIXI
2153	select CPU_HAS_DIEI if !CPU_DIEI_BROKEN
2154	select HAVE_ARCH_BITREVERSE
2155	select MIPS_ASID_BITS_VARIABLE
2156	select MIPS_CRC_SUPPORT
2157	select MIPS_SPRAM
2158
2159config TARGET_ISA_REV
2160	int
2161	default 1 if CPU_MIPSR1
2162	default 2 if CPU_MIPSR2
2163	default 5 if CPU_MIPSR5
2164	default 6 if CPU_MIPSR6
2165	default 0
2166	help
2167	  Reflects the ISA revision being targeted by the kernel build. This
2168	  is effectively the Kconfig equivalent of MIPS_ISA_REV.
2169
2170config EVA
2171	bool
2172
2173config XPA
2174	bool
2175
2176config SYS_SUPPORTS_32BIT_KERNEL
2177	bool
2178config SYS_SUPPORTS_64BIT_KERNEL
2179	bool
2180config CPU_SUPPORTS_32BIT_KERNEL
2181	bool
2182config CPU_SUPPORTS_64BIT_KERNEL
2183	bool
2184config CPU_SUPPORTS_CPUFREQ
2185	bool
2186config CPU_SUPPORTS_ADDRWINCFG
2187	bool
2188config CPU_SUPPORTS_HUGEPAGES
2189	bool
2190	depends on !(32BIT && (ARCH_PHYS_ADDR_T_64BIT || EVA))
2191config MIPS_PGD_C0_CONTEXT
2192	bool
2193	depends on 64BIT
2194	default y if (CPU_MIPSR2 || CPU_MIPSR6) && !CPU_XLP
2195
2196#
2197# Set to y for ptrace access to watch registers.
2198#
2199config HARDWARE_WATCHPOINTS
2200	bool
2201	default y if CPU_MIPSR1 || CPU_MIPSR2 || CPU_MIPSR6
2202
2203menu "Kernel type"
2204
2205choice
2206	prompt "Kernel code model"
2207	help
2208	  You should only select this option if you have a workload that
2209	  actually benefits from 64-bit processing or if your machine has
2210	  large memory.  You will only be presented a single option in this
2211	  menu if your system does not support both 32-bit and 64-bit kernels.
2212
2213config 32BIT
2214	bool "32-bit kernel"
2215	depends on CPU_SUPPORTS_32BIT_KERNEL && SYS_SUPPORTS_32BIT_KERNEL
2216	select TRAD_SIGNALS
2217	help
2218	  Select this option if you want to build a 32-bit kernel.
2219
2220config 64BIT
2221	bool "64-bit kernel"
2222	depends on CPU_SUPPORTS_64BIT_KERNEL && SYS_SUPPORTS_64BIT_KERNEL
2223	help
2224	  Select this option if you want to build a 64-bit kernel.
2225
2226endchoice
2227
2228config MIPS_VA_BITS_48
2229	bool "48 bits virtual memory"
2230	depends on 64BIT
2231	help
2232	  Support a maximum at least 48 bits of application virtual
2233	  memory.  Default is 40 bits or less, depending on the CPU.
2234	  For page sizes 16k and above, this option results in a small
2235	  memory overhead for page tables.  For 4k page size, a fourth
2236	  level of page tables is added which imposes both a memory
2237	  overhead as well as slower TLB fault handling.
2238
2239	  If unsure, say N.
2240
2241choice
2242	prompt "Kernel page size"
2243	default PAGE_SIZE_4KB
2244
2245config PAGE_SIZE_4KB
2246	bool "4kB"
2247	depends on !CPU_LOONGSON2EF && !CPU_LOONGSON64
2248	help
2249	  This option select the standard 4kB Linux page size.  On some
2250	  R3000-family processors this is the only available page size.  Using
2251	  4kB page size will minimize memory consumption and is therefore
2252	  recommended for low memory systems.
2253
2254config PAGE_SIZE_8KB
2255	bool "8kB"
2256	depends on CPU_CAVIUM_OCTEON
2257	depends on !MIPS_VA_BITS_48
2258	help
2259	  Using 8kB page size will result in higher performance kernel at
2260	  the price of higher memory consumption.  This option is available
2261	  only on cnMIPS processors.  Note that you will need a suitable Linux
2262	  distribution to support this.
2263
2264config PAGE_SIZE_16KB
2265	bool "16kB"
2266	depends on !CPU_R3000 && !CPU_TX39XX
2267	help
2268	  Using 16kB page size will result in higher performance kernel at
2269	  the price of higher memory consumption.  This option is available on
2270	  all non-R3000 family processors.  Note that you will need a suitable
2271	  Linux distribution to support this.
2272
2273config PAGE_SIZE_32KB
2274	bool "32kB"
2275	depends on CPU_CAVIUM_OCTEON
2276	depends on !MIPS_VA_BITS_48
2277	help
2278	  Using 32kB page size will result in higher performance kernel at
2279	  the price of higher memory consumption.  This option is available
2280	  only on cnMIPS cores.  Note that you will need a suitable Linux
2281	  distribution to support this.
2282
2283config PAGE_SIZE_64KB
2284	bool "64kB"
2285	depends on !CPU_R3000 && !CPU_TX39XX
2286	help
2287	  Using 64kB page size will result in higher performance kernel at
2288	  the price of higher memory consumption.  This option is available on
2289	  all non-R3000 family processor.  Not that at the time of this
2290	  writing this option is still high experimental.
2291
2292endchoice
2293
2294config FORCE_MAX_ZONEORDER
2295	int "Maximum zone order"
2296	range 14 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2297	default "14" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_64KB
2298	range 13 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2299	default "13" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_32KB
2300	range 12 64 if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2301	default "12" if MIPS_HUGE_TLB_SUPPORT && PAGE_SIZE_16KB
2302	range 0 64
2303	default "11"
2304	help
2305	  The kernel memory allocator divides physically contiguous memory
2306	  blocks into "zones", where each zone is a power of two number of
2307	  pages.  This option selects the largest power of two that the kernel
2308	  keeps in the memory allocator.  If you need to allocate very large
2309	  blocks of physically contiguous memory, then you may need to
2310	  increase this value.
2311
2312	  This config option is actually maximum order plus one. For example,
2313	  a value of 11 means that the largest free memory block is 2^10 pages.
2314
2315	  The page size is not necessarily 4KB.  Keep this in mind
2316	  when choosing a value for this option.
2317
2318config BOARD_SCACHE
2319	bool
2320
2321config IP22_CPU_SCACHE
2322	bool
2323	select BOARD_SCACHE
2324
2325#
2326# Support for a MIPS32 / MIPS64 style S-caches
2327#
2328config MIPS_CPU_SCACHE
2329	bool
2330	select BOARD_SCACHE
2331
2332config R5000_CPU_SCACHE
2333	bool
2334	select BOARD_SCACHE
2335
2336config RM7000_CPU_SCACHE
2337	bool
2338	select BOARD_SCACHE
2339
2340config SIBYTE_DMA_PAGEOPS
2341	bool "Use DMA to clear/copy pages"
2342	depends on CPU_SB1
2343	help
2344	  Instead of using the CPU to zero and copy pages, use a Data Mover
2345	  channel.  These DMA channels are otherwise unused by the standard
2346	  SiByte Linux port.  Seems to give a small performance benefit.
2347
2348config CPU_HAS_PREFETCH
2349	bool
2350
2351config CPU_GENERIC_DUMP_TLB
2352	bool
2353	default y if !(CPU_R3000 || CPU_TX39XX)
2354
2355config MIPS_FP_SUPPORT
2356	bool "Floating Point support" if EXPERT
2357	default y
2358	help
2359	  Select y to include support for floating point in the kernel
2360	  including initialization of FPU hardware, FP context save & restore
2361	  and emulation of an FPU where necessary. Without this support any
2362	  userland program attempting to use floating point instructions will
2363	  receive a SIGILL.
2364
2365	  If you know that your userland will not attempt to use floating point
2366	  instructions then you can say n here to shrink the kernel a little.
2367
2368	  If unsure, say y.
2369
2370config CPU_R2300_FPU
2371	bool
2372	depends on MIPS_FP_SUPPORT
2373	default y if CPU_R3000 || CPU_TX39XX
2374
2375config CPU_R3K_TLB
2376	bool
2377
2378config CPU_R4K_FPU
2379	bool
2380	depends on MIPS_FP_SUPPORT
2381	default y if !CPU_R2300_FPU
2382
2383config CPU_R4K_CACHE_TLB
2384	bool
2385	default y if !(CPU_R3K_TLB || CPU_SB1 || CPU_CAVIUM_OCTEON)
2386
2387config MIPS_MT_SMP
2388	bool "MIPS MT SMP support (1 TC on each available VPE)"
2389	default y
2390	depends on SYS_SUPPORTS_MULTITHREADING && !CPU_MIPSR6 && !CPU_MICROMIPS
2391	select CPU_MIPSR2_IRQ_VI
2392	select CPU_MIPSR2_IRQ_EI
2393	select SYNC_R4K
2394	select MIPS_MT
2395	select SMP
2396	select SMP_UP
2397	select SYS_SUPPORTS_SMP
2398	select SYS_SUPPORTS_SCHED_SMT
2399	select MIPS_PERF_SHARED_TC_COUNTERS
2400	help
2401	  This is a kernel model which is known as SMVP. This is supported
2402	  on cores with the MT ASE and uses the available VPEs to implement
2403	  virtual processors which supports SMP. This is equivalent to the
2404	  Intel Hyperthreading feature. For further information go to
2405	  <http://www.imgtec.com/mips/mips-multithreading.asp>.
2406
2407config MIPS_MT
2408	bool
2409
2410config SCHED_SMT
2411	bool "SMT (multithreading) scheduler support"
2412	depends on SYS_SUPPORTS_SCHED_SMT
2413	default n
2414	help
2415	  SMT scheduler support improves the CPU scheduler's decision making
2416	  when dealing with MIPS MT enabled cores at a cost of slightly
2417	  increased overhead in some places. If unsure say N here.
2418
2419config SYS_SUPPORTS_SCHED_SMT
2420	bool
2421
2422config SYS_SUPPORTS_MULTITHREADING
2423	bool
2424
2425config MIPS_MT_FPAFF
2426	bool "Dynamic FPU affinity for FP-intensive threads"
2427	default y
2428	depends on MIPS_MT_SMP
2429
2430config MIPSR2_TO_R6_EMULATOR
2431	bool "MIPS R2-to-R6 emulator"
2432	depends on CPU_MIPSR6
2433	depends on MIPS_FP_SUPPORT
2434	default y
2435	help
2436	  Choose this option if you want to run non-R6 MIPS userland code.
2437	  Even if you say 'Y' here, the emulator will still be disabled by
2438	  default. You can enable it using the 'mipsr2emu' kernel option.
2439	  The only reason this is a build-time option is to save ~14K from the
2440	  final kernel image.
2441
2442config SYS_SUPPORTS_VPE_LOADER
2443	bool
2444	depends on SYS_SUPPORTS_MULTITHREADING
2445	help
2446	  Indicates that the platform supports the VPE loader, and provides
2447	  physical_memsize.
2448
2449config MIPS_VPE_LOADER
2450	bool "VPE loader support."
2451	depends on SYS_SUPPORTS_VPE_LOADER && MODULES
2452	select CPU_MIPSR2_IRQ_VI
2453	select CPU_MIPSR2_IRQ_EI
2454	select MIPS_MT
2455	help
2456	  Includes a loader for loading an elf relocatable object
2457	  onto another VPE and running it.
2458
2459config MIPS_VPE_LOADER_CMP
2460	bool
2461	default "y"
2462	depends on MIPS_VPE_LOADER && MIPS_CMP
2463
2464config MIPS_VPE_LOADER_MT
2465	bool
2466	default "y"
2467	depends on MIPS_VPE_LOADER && !MIPS_CMP
2468
2469config MIPS_VPE_LOADER_TOM
2470	bool "Load VPE program into memory hidden from linux"
2471	depends on MIPS_VPE_LOADER
2472	default y
2473	help
2474	  The loader can use memory that is present but has been hidden from
2475	  Linux using the kernel command line option "mem=xxMB". It's up to
2476	  you to ensure the amount you put in the option and the space your
2477	  program requires is less or equal to the amount physically present.
2478
2479config MIPS_VPE_APSP_API
2480	bool "Enable support for AP/SP API (RTLX)"
2481	depends on MIPS_VPE_LOADER
2482
2483config MIPS_VPE_APSP_API_CMP
2484	bool
2485	default "y"
2486	depends on MIPS_VPE_APSP_API && MIPS_CMP
2487
2488config MIPS_VPE_APSP_API_MT
2489	bool
2490	default "y"
2491	depends on MIPS_VPE_APSP_API && !MIPS_CMP
2492
2493config MIPS_CMP
2494	bool "MIPS CMP framework support (DEPRECATED)"
2495	depends on SYS_SUPPORTS_MIPS_CMP && !CPU_MIPSR6
2496	select SMP
2497	select SYNC_R4K
2498	select SYS_SUPPORTS_SMP
2499	select WEAK_ORDERING
2500	default n
2501	help
2502	  Select this if you are using a bootloader which implements the "CMP
2503	  framework" protocol (ie. YAMON) and want your kernel to make use of
2504	  its ability to start secondary CPUs.
2505
2506	  Unless you have a specific need, you should use CONFIG_MIPS_CPS
2507	  instead of this.
2508
2509config MIPS_CPS
2510	bool "MIPS Coherent Processing System support"
2511	depends on SYS_SUPPORTS_MIPS_CPS
2512	select MIPS_CM
2513	select MIPS_CPS_PM if HOTPLUG_CPU
2514	select SMP
2515	select SYNC_R4K if (CEVT_R4K || CSRC_R4K)
2516	select SYS_SUPPORTS_HOTPLUG_CPU
2517	select SYS_SUPPORTS_SCHED_SMT if CPU_MIPSR6
2518	select SYS_SUPPORTS_SMP
2519	select WEAK_ORDERING
2520	select GENERIC_IRQ_MIGRATION if HOTPLUG_CPU
2521	help
2522	  Select this if you wish to run an SMP kernel across multiple cores
2523	  within a MIPS Coherent Processing System. When this option is
2524	  enabled the kernel will probe for other cores and boot them with
2525	  no external assistance. It is safe to enable this when hardware
2526	  support is unavailable.
2527
2528config MIPS_CPS_PM
2529	depends on MIPS_CPS
2530	bool
2531
2532config MIPS_CM
2533	bool
2534	select MIPS_CPC
2535
2536config MIPS_CPC
2537	bool
2538
2539config SB1_PASS_2_WORKAROUNDS
2540	bool
2541	depends on CPU_SB1 && (CPU_SB1_PASS_2_2 || CPU_SB1_PASS_2)
2542	default y
2543
2544config SB1_PASS_2_1_WORKAROUNDS
2545	bool
2546	depends on CPU_SB1 && CPU_SB1_PASS_2
2547	default y
2548
2549choice
2550	prompt "SmartMIPS or microMIPS ASE support"
2551
2552config CPU_NEEDS_NO_SMARTMIPS_OR_MICROMIPS
2553	bool "None"
2554	help
2555	  Select this if you want neither microMIPS nor SmartMIPS support
2556
2557config CPU_HAS_SMARTMIPS
2558	depends on SYS_SUPPORTS_SMARTMIPS
2559	bool "SmartMIPS"
2560	help
2561	  SmartMIPS is a extension of the MIPS32 architecture aimed at
2562	  increased security at both hardware and software level for
2563	  smartcards.  Enabling this option will allow proper use of the
2564	  SmartMIPS instructions by Linux applications.  However a kernel with
2565	  this option will not work on a MIPS core without SmartMIPS core.  If
2566	  you don't know you probably don't have SmartMIPS and should say N
2567	  here.
2568
2569config CPU_MICROMIPS
2570	depends on 32BIT && SYS_SUPPORTS_MICROMIPS && !CPU_MIPSR6
2571	bool "microMIPS"
2572	help
2573	  When this option is enabled the kernel will be built using the
2574	  microMIPS ISA
2575
2576endchoice
2577
2578config CPU_HAS_MSA
2579	bool "Support for the MIPS SIMD Architecture"
2580	depends on CPU_SUPPORTS_MSA
2581	depends on MIPS_FP_SUPPORT
2582	depends on 64BIT || MIPS_O32_FP64_SUPPORT
2583	help
2584	  MIPS SIMD Architecture (MSA) introduces 128 bit wide vector registers
2585	  and a set of SIMD instructions to operate on them. When this option
2586	  is enabled the kernel will support allocating & switching MSA
2587	  vector register contexts. If you know that your kernel will only be
2588	  running on CPUs which do not support MSA or that your userland will
2589	  not be making use of it then you may wish to say N here to reduce
2590	  the size & complexity of your kernel.
2591
2592	  If unsure, say Y.
2593
2594config CPU_HAS_WB
2595	bool
2596
2597config XKS01
2598	bool
2599
2600config CPU_HAS_DIEI
2601	depends on !CPU_DIEI_BROKEN
2602	bool
2603
2604config CPU_DIEI_BROKEN
2605	bool
2606
2607config CPU_HAS_RIXI
2608	bool
2609
2610config CPU_NO_LOAD_STORE_LR
2611	bool
2612	help
2613	  CPU lacks support for unaligned load and store instructions:
2614	  LWL, LWR, SWL, SWR (Load/store word left/right).
2615	  LDL, LDR, SDL, SDR (Load/store doubleword left/right, for 64bit
2616	  systems).
2617
2618#
2619# Vectored interrupt mode is an R2 feature
2620#
2621config CPU_MIPSR2_IRQ_VI
2622	bool
2623
2624#
2625# Extended interrupt mode is an R2 feature
2626#
2627config CPU_MIPSR2_IRQ_EI
2628	bool
2629
2630config CPU_HAS_SYNC
2631	bool
2632	depends on !CPU_R3000
2633	default y
2634
2635#
2636# CPU non-features
2637#
2638config CPU_DADDI_WORKAROUNDS
2639	bool
2640
2641config CPU_R4000_WORKAROUNDS
2642	bool
2643	select CPU_R4400_WORKAROUNDS
2644
2645config CPU_R4400_WORKAROUNDS
2646	bool
2647
2648config CPU_R4X00_BUGS64
2649	bool
2650	default y if SYS_HAS_CPU_R4X00 && 64BIT && (TARGET_ISA_REV < 1)
2651
2652config MIPS_ASID_SHIFT
2653	int
2654	default 6 if CPU_R3000 || CPU_TX39XX
2655	default 0
2656
2657config MIPS_ASID_BITS
2658	int
2659	default 0 if MIPS_ASID_BITS_VARIABLE
2660	default 6 if CPU_R3000 || CPU_TX39XX
2661	default 8
2662
2663config MIPS_ASID_BITS_VARIABLE
2664	bool
2665
2666config MIPS_CRC_SUPPORT
2667	bool
2668
2669# R4600 erratum.  Due to the lack of errata information the exact
2670# technical details aren't known.  I've experimentally found that disabling
2671# interrupts during indexed I-cache flushes seems to be sufficient to deal
2672# with the issue.
2673config WAR_R4600_V1_INDEX_ICACHEOP
2674	bool
2675
2676# Pleasures of the R4600 V1.x.  Cite from the IDT R4600 V1.7 errata:
2677#
2678#  18. The CACHE instructions Hit_Writeback_Invalidate_D, Hit_Writeback_D,
2679#      Hit_Invalidate_D and Create_Dirty_Excl_D should only be
2680#      executed if there is no other dcache activity. If the dcache is
2681#      accessed for another instruction immediately preceding when these
2682#      cache instructions are executing, it is possible that the dcache
2683#      tag match outputs used by these cache instructions will be
2684#      incorrect. These cache instructions should be preceded by at least
2685#      four instructions that are not any kind of load or store
2686#      instruction.
2687#
2688#      This is not allowed:    lw
2689#                              nop
2690#                              nop
2691#                              nop
2692#                              cache       Hit_Writeback_Invalidate_D
2693#
2694#      This is allowed:        lw
2695#                              nop
2696#                              nop
2697#                              nop
2698#                              nop
2699#                              cache       Hit_Writeback_Invalidate_D
2700config WAR_R4600_V1_HIT_CACHEOP
2701	bool
2702
2703# Writeback and invalidate the primary cache dcache before DMA.
2704#
2705# R4600 v2.0 bug: "The CACHE instructions Hit_Writeback_Inv_D,
2706# Hit_Writeback_D, Hit_Invalidate_D and Create_Dirty_Exclusive_D will only
2707# operate correctly if the internal data cache refill buffer is empty.  These
2708# CACHE instructions should be separated from any potential data cache miss
2709# by a load instruction to an uncached address to empty the response buffer."
2710# (Revision 2.0 device errata from IDT available on https://www.idt.com/
2711# in .pdf format.)
2712config WAR_R4600_V2_HIT_CACHEOP
2713	bool
2714
2715# From TX49/H2 manual: "If the instruction (i.e. CACHE) is issued for
2716# the line which this instruction itself exists, the following
2717# operation is not guaranteed."
2718#
2719# Workaround: do two phase flushing for Index_Invalidate_I
2720config WAR_TX49XX_ICACHE_INDEX_INV
2721	bool
2722
2723# The RM7000 processors and the E9000 cores have a bug (though PMC-Sierra
2724# opposes it being called that) where invalid instructions in the same
2725# I-cache line worth of instructions being fetched may case spurious
2726# exceptions.
2727config WAR_ICACHE_REFILLS
2728	bool
2729
2730# On the R10000 up to version 2.6 (not sure about 2.7) there is a bug that
2731# may cause ll / sc and lld / scd sequences to execute non-atomically.
2732config WAR_R10000_LLSC
2733	bool
2734
2735# 34K core erratum: "Problems Executing the TLBR Instruction"
2736config WAR_MIPS34K_MISSED_ITLB
2737	bool
2738
2739#
2740# - Highmem only makes sense for the 32-bit kernel.
2741# - The current highmem code will only work properly on physically indexed
2742#   caches such as R3000, SB1, R7000 or those that look like they're virtually
2743#   indexed such as R4000/R4400 SC and MC versions or R10000.  So for the
2744#   moment we protect the user and offer the highmem option only on machines
2745#   where it's known to be safe.  This will not offer highmem on a few systems
2746#   such as MIPS32 and MIPS64 CPUs which may have virtual and physically
2747#   indexed CPUs but we're playing safe.
2748# - We use SYS_SUPPORTS_HIGHMEM to offer highmem only for systems where we
2749#   know they might have memory configurations that could make use of highmem
2750#   support.
2751#
2752config HIGHMEM
2753	bool "High Memory Support"
2754	depends on 32BIT && CPU_SUPPORTS_HIGHMEM && SYS_SUPPORTS_HIGHMEM && !CPU_MIPS32_3_5_EVA
2755	select KMAP_LOCAL
2756
2757config CPU_SUPPORTS_HIGHMEM
2758	bool
2759
2760config SYS_SUPPORTS_HIGHMEM
2761	bool
2762
2763config SYS_SUPPORTS_SMARTMIPS
2764	bool
2765
2766config SYS_SUPPORTS_MICROMIPS
2767	bool
2768
2769config SYS_SUPPORTS_MIPS16
2770	bool
2771	help
2772	  This option must be set if a kernel might be executed on a MIPS16-
2773	  enabled CPU even if MIPS16 is not actually being used.  In other
2774	  words, it makes the kernel MIPS16-tolerant.
2775
2776config CPU_SUPPORTS_MSA
2777	bool
2778
2779config ARCH_FLATMEM_ENABLE
2780	def_bool y
2781	depends on !NUMA && !CPU_LOONGSON2EF
2782
2783config ARCH_SPARSEMEM_ENABLE
2784	bool
2785	select SPARSEMEM_STATIC if !SGI_IP27
2786
2787config NUMA
2788	bool "NUMA Support"
2789	depends on SYS_SUPPORTS_NUMA
2790	select SMP
2791	help
2792	  Say Y to compile the kernel to support NUMA (Non-Uniform Memory
2793	  Access).  This option improves performance on systems with more
2794	  than two nodes; on two node systems it is generally better to
2795	  leave it disabled; on single node systems leave this option
2796	  disabled.
2797
2798config SYS_SUPPORTS_NUMA
2799	bool
2800
2801config HAVE_SETUP_PER_CPU_AREA
2802	def_bool y
2803	depends on NUMA
2804
2805config NEED_PER_CPU_EMBED_FIRST_CHUNK
2806	def_bool y
2807	depends on NUMA
2808
2809config RELOCATABLE
2810	bool "Relocatable kernel"
2811	depends on SYS_SUPPORTS_RELOCATABLE
2812	depends on CPU_MIPS32_R2 || CPU_MIPS64_R2 || \
2813		   CPU_MIPS32_R5 || CPU_MIPS64_R5 || \
2814		   CPU_MIPS32_R6 || CPU_MIPS64_R6 || \
2815		   CPU_P5600 || CAVIUM_OCTEON_SOC || \
2816		   CPU_LOONGSON64
2817	help
2818	  This builds a kernel image that retains relocation information
2819	  so it can be loaded someplace besides the default 1MB.
2820	  The relocations make the kernel binary about 15% larger,
2821	  but are discarded at runtime
2822
2823config RELOCATION_TABLE_SIZE
2824	hex "Relocation table size"
2825	depends on RELOCATABLE
2826	range 0x0 0x01000000
2827	default "0x00200000" if CPU_LOONGSON64
2828	default "0x00100000"
2829	help
2830	  A table of relocation data will be appended to the kernel binary
2831	  and parsed at boot to fix up the relocated kernel.
2832
2833	  This option allows the amount of space reserved for the table to be
2834	  adjusted, although the default of 1Mb should be ok in most cases.
2835
2836	  The build will fail and a valid size suggested if this is too small.
2837
2838	  If unsure, leave at the default value.
2839
2840config RANDOMIZE_BASE
2841	bool "Randomize the address of the kernel image"
2842	depends on RELOCATABLE
2843	help
2844	  Randomizes the physical and virtual address at which the
2845	  kernel image is loaded, as a security feature that
2846	  deters exploit attempts relying on knowledge of the location
2847	  of kernel internals.
2848
2849	  Entropy is generated using any coprocessor 0 registers available.
2850
2851	  The kernel will be offset by up to RANDOMIZE_BASE_MAX_OFFSET.
2852
2853	  If unsure, say N.
2854
2855config RANDOMIZE_BASE_MAX_OFFSET
2856	hex "Maximum kASLR offset" if EXPERT
2857	depends on RANDOMIZE_BASE
2858	range 0x0 0x40000000 if EVA || 64BIT
2859	range 0x0 0x08000000
2860	default "0x01000000"
2861	help
2862	  When kASLR is active, this provides the maximum offset that will
2863	  be applied to the kernel image. It should be set according to the
2864	  amount of physical RAM available in the target system minus
2865	  PHYSICAL_START and must be a power of 2.
2866
2867	  This is limited by the size of KSEG0, 256Mb on 32-bit or 1Gb with
2868	  EVA or 64-bit. The default is 16Mb.
2869
2870config NODES_SHIFT
2871	int
2872	default "6"
2873	depends on NEED_MULTIPLE_NODES
2874
2875config HW_PERF_EVENTS
2876	bool "Enable hardware performance counter support for perf events"
2877	depends on PERF_EVENTS && (CPU_MIPS32 || CPU_MIPS64 || CPU_R10000 || CPU_SB1 || CPU_CAVIUM_OCTEON || CPU_XLP || CPU_LOONGSON64)
2878	default y
2879	help
2880	  Enable hardware performance counter support for perf events. If
2881	  disabled, perf events will use software events only.
2882
2883config DMI
2884	bool "Enable DMI scanning"
2885	depends on MACH_LOONGSON64
2886	select DMI_SCAN_MACHINE_NON_EFI_FALLBACK
2887	default y
2888	help
2889	  Enabled scanning of DMI to identify machine quirks. Say Y
2890	  here unless you have verified that your setup is not
2891	  affected by entries in the DMI blacklist. Required by PNP
2892	  BIOS code.
2893
2894config SMP
2895	bool "Multi-Processing support"
2896	depends on SYS_SUPPORTS_SMP
2897	help
2898	  This enables support for systems with more than one CPU. If you have
2899	  a system with only one CPU, say N. If you have a system with more
2900	  than one CPU, say Y.
2901
2902	  If you say N here, the kernel will run on uni- and multiprocessor
2903	  machines, but will use only one CPU of a multiprocessor machine. If
2904	  you say Y here, the kernel will run on many, but not all,
2905	  uniprocessor machines. On a uniprocessor machine, the kernel
2906	  will run faster if you say N here.
2907
2908	  People using multiprocessor machines who say Y here should also say
2909	  Y to "Enhanced Real Time Clock Support", below.
2910
2911	  See also the SMP-HOWTO available at
2912	  <https://www.tldp.org/docs.html#howto>.
2913
2914	  If you don't know what to do here, say N.
2915
2916config HOTPLUG_CPU
2917	bool "Support for hot-pluggable CPUs"
2918	depends on SMP && SYS_SUPPORTS_HOTPLUG_CPU
2919	help
2920	  Say Y here to allow turning CPUs off and on. CPUs can be
2921	  controlled through /sys/devices/system/cpu.
2922	  (Note: power management support will enable this option
2923	    automatically on SMP systems. )
2924	  Say N if you want to disable CPU hotplug.
2925
2926config SMP_UP
2927	bool
2928
2929config SYS_SUPPORTS_MIPS_CMP
2930	bool
2931
2932config SYS_SUPPORTS_MIPS_CPS
2933	bool
2934
2935config SYS_SUPPORTS_SMP
2936	bool
2937
2938config NR_CPUS_DEFAULT_4
2939	bool
2940
2941config NR_CPUS_DEFAULT_8
2942	bool
2943
2944config NR_CPUS_DEFAULT_16
2945	bool
2946
2947config NR_CPUS_DEFAULT_32
2948	bool
2949
2950config NR_CPUS_DEFAULT_64
2951	bool
2952
2953config NR_CPUS
2954	int "Maximum number of CPUs (2-256)"
2955	range 2 256
2956	depends on SMP
2957	default "4" if NR_CPUS_DEFAULT_4
2958	default "8" if NR_CPUS_DEFAULT_8
2959	default "16" if NR_CPUS_DEFAULT_16
2960	default "32" if NR_CPUS_DEFAULT_32
2961	default "64" if NR_CPUS_DEFAULT_64
2962	help
2963	  This allows you to specify the maximum number of CPUs which this
2964	  kernel will support.  The maximum supported value is 32 for 32-bit
2965	  kernel and 64 for 64-bit kernels; the minimum value which makes
2966	  sense is 1 for Qemu (useful only for kernel debugging purposes)
2967	  and 2 for all others.
2968
2969	  This is purely to save memory - each supported CPU adds
2970	  approximately eight kilobytes to the kernel image.  For best
2971	  performance should round up your number of processors to the next
2972	  power of two.
2973
2974config MIPS_PERF_SHARED_TC_COUNTERS
2975	bool
2976
2977config MIPS_NR_CPU_NR_MAP_1024
2978	bool
2979
2980config MIPS_NR_CPU_NR_MAP
2981	int
2982	depends on SMP
2983	default 1024 if MIPS_NR_CPU_NR_MAP_1024
2984	default NR_CPUS if !MIPS_NR_CPU_NR_MAP_1024
2985
2986#
2987# Timer Interrupt Frequency Configuration
2988#
2989
2990choice
2991	prompt "Timer frequency"
2992	default HZ_250
2993	help
2994	  Allows the configuration of the timer frequency.
2995
2996	config HZ_24
2997		bool "24 HZ" if SYS_SUPPORTS_24HZ || SYS_SUPPORTS_ARBIT_HZ
2998
2999	config HZ_48
3000		bool "48 HZ" if SYS_SUPPORTS_48HZ || SYS_SUPPORTS_ARBIT_HZ
3001
3002	config HZ_100
3003		bool "100 HZ" if SYS_SUPPORTS_100HZ || SYS_SUPPORTS_ARBIT_HZ
3004
3005	config HZ_128
3006		bool "128 HZ" if SYS_SUPPORTS_128HZ || SYS_SUPPORTS_ARBIT_HZ
3007
3008	config HZ_250
3009		bool "250 HZ" if SYS_SUPPORTS_250HZ || SYS_SUPPORTS_ARBIT_HZ
3010
3011	config HZ_256
3012		bool "256 HZ" if SYS_SUPPORTS_256HZ || SYS_SUPPORTS_ARBIT_HZ
3013
3014	config HZ_1000
3015		bool "1000 HZ" if SYS_SUPPORTS_1000HZ || SYS_SUPPORTS_ARBIT_HZ
3016
3017	config HZ_1024
3018		bool "1024 HZ" if SYS_SUPPORTS_1024HZ || SYS_SUPPORTS_ARBIT_HZ
3019
3020endchoice
3021
3022config SYS_SUPPORTS_24HZ
3023	bool
3024
3025config SYS_SUPPORTS_48HZ
3026	bool
3027
3028config SYS_SUPPORTS_100HZ
3029	bool
3030
3031config SYS_SUPPORTS_128HZ
3032	bool
3033
3034config SYS_SUPPORTS_250HZ
3035	bool
3036
3037config SYS_SUPPORTS_256HZ
3038	bool
3039
3040config SYS_SUPPORTS_1000HZ
3041	bool
3042
3043config SYS_SUPPORTS_1024HZ
3044	bool
3045
3046config SYS_SUPPORTS_ARBIT_HZ
3047	bool
3048	default y if !SYS_SUPPORTS_24HZ && \
3049		     !SYS_SUPPORTS_48HZ && \
3050		     !SYS_SUPPORTS_100HZ && \
3051		     !SYS_SUPPORTS_128HZ && \
3052		     !SYS_SUPPORTS_250HZ && \
3053		     !SYS_SUPPORTS_256HZ && \
3054		     !SYS_SUPPORTS_1000HZ && \
3055		     !SYS_SUPPORTS_1024HZ
3056
3057config HZ
3058	int
3059	default 24 if HZ_24
3060	default 48 if HZ_48
3061	default 100 if HZ_100
3062	default 128 if HZ_128
3063	default 250 if HZ_250
3064	default 256 if HZ_256
3065	default 1000 if HZ_1000
3066	default 1024 if HZ_1024
3067
3068config SCHED_HRTICK
3069	def_bool HIGH_RES_TIMERS
3070
3071config KEXEC
3072	bool "Kexec system call"
3073	select KEXEC_CORE
3074	help
3075	  kexec is a system call that implements the ability to shutdown your
3076	  current kernel, and to start another kernel.  It is like a reboot
3077	  but it is independent of the system firmware.   And like a reboot
3078	  you can start any kernel with it, not just Linux.
3079
3080	  The name comes from the similarity to the exec system call.
3081
3082	  It is an ongoing process to be certain the hardware in a machine
3083	  is properly shutdown, so do not be surprised if this code does not
3084	  initially work for you.  As of this writing the exact hardware
3085	  interface is strongly in flux, so no good recommendation can be
3086	  made.
3087
3088config CRASH_DUMP
3089	bool "Kernel crash dumps"
3090	help
3091	  Generate crash dump after being started by kexec.
3092	  This should be normally only set in special crash dump kernels
3093	  which are loaded in the main kernel with kexec-tools into
3094	  a specially reserved region and then later executed after
3095	  a crash by kdump/kexec. The crash dump kernel must be compiled
3096	  to a memory address not used by the main kernel or firmware using
3097	  PHYSICAL_START.
3098
3099config PHYSICAL_START
3100	hex "Physical address where the kernel is loaded"
3101	default "0xffffffff84000000"
3102	depends on CRASH_DUMP
3103	help
3104	  This gives the CKSEG0 or KSEG0 address where the kernel is loaded.
3105	  If you plan to use kernel for capturing the crash dump change
3106	  this value to start of the reserved region (the "X" value as
3107	  specified in the "crashkernel=YM@XM" command line boot parameter
3108	  passed to the panic-ed kernel).
3109
3110config MIPS_O32_FP64_SUPPORT
3111	bool "Support for O32 binaries using 64-bit FP" if !CPU_MIPSR6
3112	depends on 32BIT || MIPS32_O32
3113	help
3114	  When this is enabled, the kernel will support use of 64-bit floating
3115	  point registers with binaries using the O32 ABI along with the
3116	  EF_MIPS_FP64 ELF header flag (typically built with -mfp64). On
3117	  32-bit MIPS systems this support is at the cost of increasing the
3118	  size and complexity of the compiled FPU emulator. Thus if you are
3119	  running a MIPS32 system and know that none of your userland binaries
3120	  will require 64-bit floating point, you may wish to reduce the size
3121	  of your kernel & potentially improve FP emulation performance by
3122	  saying N here.
3123
3124	  Although binutils currently supports use of this flag the details
3125	  concerning its effect upon the O32 ABI in userland are still being
3126	  worked on. In order to avoid userland becoming dependent upon current
3127	  behaviour before the details have been finalised, this option should
3128	  be considered experimental and only enabled by those working upon
3129	  said details.
3130
3131	  If unsure, say N.
3132
3133config USE_OF
3134	bool
3135	select OF
3136	select OF_EARLY_FLATTREE
3137	select IRQ_DOMAIN
3138
3139config UHI_BOOT
3140	bool
3141
3142config BUILTIN_DTB
3143	bool
3144
3145choice
3146	prompt "Kernel appended dtb support" if USE_OF
3147	default MIPS_NO_APPENDED_DTB
3148
3149	config MIPS_NO_APPENDED_DTB
3150		bool "None"
3151		help
3152		  Do not enable appended dtb support.
3153
3154	config MIPS_ELF_APPENDED_DTB
3155		bool "vmlinux"
3156		help
3157		  With this option, the boot code will look for a device tree binary
3158		  DTB) included in the vmlinux ELF section .appended_dtb. By default
3159		  it is empty and the DTB can be appended using binutils command
3160		  objcopy:
3161
3162		    objcopy --update-section .appended_dtb=<filename>.dtb vmlinux
3163
3164		  This is meant as a backward compatibility convenience for those
3165		  systems with a bootloader that can't be upgraded to accommodate
3166		  the documented boot protocol using a device tree.
3167
3168	config MIPS_RAW_APPENDED_DTB
3169		bool "vmlinux.bin or vmlinuz.bin"
3170		help
3171		  With this option, the boot code will look for a device tree binary
3172		  DTB) appended to raw vmlinux.bin or vmlinuz.bin.
3173		  (e.g. cat vmlinux.bin <filename>.dtb > vmlinux_w_dtb).
3174
3175		  This is meant as a backward compatibility convenience for those
3176		  systems with a bootloader that can't be upgraded to accommodate
3177		  the documented boot protocol using a device tree.
3178
3179		  Beware that there is very little in terms of protection against
3180		  this option being confused by leftover garbage in memory that might
3181		  look like a DTB header after a reboot if no actual DTB is appended
3182		  to vmlinux.bin.  Do not leave this option active in a production kernel
3183		  if you don't intend to always append a DTB.
3184endchoice
3185
3186choice
3187	prompt "Kernel command line type" if !CMDLINE_OVERRIDE
3188	default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \
3189					 !MACH_LOONGSON64 && !MIPS_MALTA && \
3190					 !CAVIUM_OCTEON_SOC
3191	default MIPS_CMDLINE_FROM_BOOTLOADER
3192
3193	config MIPS_CMDLINE_FROM_DTB
3194		depends on USE_OF
3195		bool "Dtb kernel arguments if available"
3196
3197	config MIPS_CMDLINE_DTB_EXTEND
3198		depends on USE_OF
3199		bool "Extend dtb kernel arguments with bootloader arguments"
3200
3201	config MIPS_CMDLINE_FROM_BOOTLOADER
3202		bool "Bootloader kernel arguments if available"
3203
3204	config MIPS_CMDLINE_BUILTIN_EXTEND
3205		depends on CMDLINE_BOOL
3206		bool "Extend builtin kernel arguments with bootloader arguments"
3207endchoice
3208
3209endmenu
3210
3211config LOCKDEP_SUPPORT
3212	bool
3213	default y
3214
3215config STACKTRACE_SUPPORT
3216	bool
3217	default y
3218
3219config PGTABLE_LEVELS
3220	int
3221	default 4 if PAGE_SIZE_4KB && MIPS_VA_BITS_48
3222	default 3 if 64BIT && !PAGE_SIZE_64KB
3223	default 2
3224
3225config MIPS_AUTO_PFN_OFFSET
3226	bool
3227
3228menu "Bus options (PCI, PCMCIA, EISA, ISA, TC)"
3229
3230config PCI_DRIVERS_GENERIC
3231	select PCI_DOMAINS_GENERIC if PCI
3232	bool
3233
3234config PCI_DRIVERS_LEGACY
3235	def_bool !PCI_DRIVERS_GENERIC
3236	select NO_GENERIC_PCI_IOPORT_MAP
3237	select PCI_DOMAINS if PCI
3238
3239#
3240# ISA support is now enabled via select.  Too many systems still have the one
3241# or other ISA chip on the board that users don't know about so don't expect
3242# users to choose the right thing ...
3243#
3244config ISA
3245	bool
3246
3247config TC
3248	bool "TURBOchannel support"
3249	depends on MACH_DECSTATION
3250	help
3251	  TURBOchannel is a DEC (now Compaq (now HP)) bus for Alpha and MIPS
3252	  processors.  TURBOchannel programming specifications are available
3253	  at:
3254	  <ftp://ftp.hp.com/pub/alphaserver/archive/triadd/>
3255	  and:
3256	  <http://www.computer-refuge.org/classiccmp/ftp.digital.com/pub/DEC/TriAdd/>
3257	  Linux driver support status is documented at:
3258	  <http://www.linux-mips.org/wiki/DECstation>
3259
3260config MMU
3261	bool
3262	default y
3263
3264config ARCH_MMAP_RND_BITS_MIN
3265	default 12 if 64BIT
3266	default 8
3267
3268config ARCH_MMAP_RND_BITS_MAX
3269	default 18 if 64BIT
3270	default 15
3271
3272config ARCH_MMAP_RND_COMPAT_BITS_MIN
3273	default 8
3274
3275config ARCH_MMAP_RND_COMPAT_BITS_MAX
3276	default 15
3277
3278config I8253
3279	bool
3280	select CLKSRC_I8253
3281	select CLKEVT_I8253
3282	select MIPS_EXTERNAL_TIMER
3283
3284config ZONE_DMA
3285	bool
3286
3287config ZONE_DMA32
3288	bool
3289
3290endmenu
3291
3292config TRAD_SIGNALS
3293	bool
3294
3295config MIPS32_COMPAT
3296	bool
3297
3298config COMPAT
3299	bool
3300
3301config SYSVIPC_COMPAT
3302	bool
3303
3304config MIPS32_O32
3305	bool "Kernel support for o32 binaries"
3306	depends on 64BIT
3307	select ARCH_WANT_OLD_COMPAT_IPC
3308	select COMPAT
3309	select MIPS32_COMPAT
3310	select SYSVIPC_COMPAT if SYSVIPC
3311	help
3312	  Select this option if you want to run o32 binaries.  These are pure
3313	  32-bit binaries as used by the 32-bit Linux/MIPS port.  Most of
3314	  existing binaries are in this format.
3315
3316	  If unsure, say Y.
3317
3318config MIPS32_N32
3319	bool "Kernel support for n32 binaries"
3320	depends on 64BIT
3321	select ARCH_WANT_COMPAT_IPC_PARSE_VERSION
3322	select COMPAT
3323	select MIPS32_COMPAT
3324	select SYSVIPC_COMPAT if SYSVIPC
3325	help
3326	  Select this option if you want to run n32 binaries.  These are
3327	  64-bit binaries using 32-bit quantities for addressing and certain
3328	  data that would normally be 64-bit.  They are used in special
3329	  cases.
3330
3331	  If unsure, say N.
3332
3333menu "Power management options"
3334
3335config ARCH_HIBERNATION_POSSIBLE
3336	def_bool y
3337	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3338
3339config ARCH_SUSPEND_POSSIBLE
3340	def_bool y
3341	depends on SYS_SUPPORTS_HOTPLUG_CPU || !SMP
3342
3343source "kernel/power/Kconfig"
3344
3345endmenu
3346
3347config MIPS_EXTERNAL_TIMER
3348	bool
3349
3350menu "CPU Power Management"
3351
3352if CPU_SUPPORTS_CPUFREQ && MIPS_EXTERNAL_TIMER
3353source "drivers/cpufreq/Kconfig"
3354endif
3355
3356source "drivers/cpuidle/Kconfig"
3357
3358endmenu
3359
3360source "drivers/firmware/Kconfig"
3361
3362source "arch/mips/kvm/Kconfig"
3363
3364source "arch/mips/vdso/Kconfig"
3365