Kconfig 21 KB

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  1. config SUPERH
  2. def_bool y
  3. select EMBEDDED
  4. select HAVE_CLK
  5. select HAVE_IDE if HAS_IOPORT
  6. select HAVE_MEMBLOCK
  7. select HAVE_OPROFILE
  8. select HAVE_GENERIC_DMA_COHERENT
  9. select HAVE_ARCH_TRACEHOOK
  10. select HAVE_DMA_API_DEBUG
  11. select HAVE_DMA_ATTRS
  12. select HAVE_IRQ_WORK
  13. select HAVE_PERF_EVENTS
  14. select PERF_USE_VMALLOC
  15. select HAVE_KERNEL_GZIP
  16. select HAVE_KERNEL_BZIP2
  17. select HAVE_KERNEL_LZMA
  18. select HAVE_KERNEL_LZO
  19. select HAVE_SYSCALL_TRACEPOINTS
  20. select HAVE_REGS_AND_STACK_ACCESS_API
  21. select HAVE_GENERIC_HARDIRQS
  22. select HAVE_SPARSE_IRQ
  23. select RTC_LIB
  24. select GENERIC_ATOMIC64
  25. # Support the deprecated APIs until MFD and GPIOLIB catch up.
  26. select GENERIC_HARDIRQS_NO_DEPRECATED if !MFD_SUPPORT && !GPIOLIB
  27. help
  28. The SuperH is a RISC processor targeted for use in embedded systems
  29. and consumer electronics; it was also used in the Sega Dreamcast
  30. gaming console. The SuperH port has a home page at
  31. <http://www.linux-sh.org/>.
  32. config SUPERH32
  33. def_bool ARCH = "sh"
  34. select HAVE_KPROBES
  35. select HAVE_KRETPROBES
  36. select HAVE_IOREMAP_PROT if MMU && !X2TLB
  37. select HAVE_FUNCTION_TRACER
  38. select HAVE_FTRACE_MCOUNT_RECORD
  39. select HAVE_DYNAMIC_FTRACE
  40. select HAVE_FUNCTION_TRACE_MCOUNT_TEST
  41. select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE
  42. select HAVE_FUNCTION_GRAPH_TRACER
  43. select HAVE_ARCH_KGDB
  44. select HAVE_HW_BREAKPOINT
  45. select HAVE_MIXED_BREAKPOINTS_REGS
  46. select PERF_EVENTS
  47. select ARCH_HIBERNATION_POSSIBLE if MMU
  48. select SPARSE_IRQ
  49. config SUPERH64
  50. def_bool ARCH = "sh64"
  51. config ARCH_DEFCONFIG
  52. string
  53. default "arch/sh/configs/shx3_defconfig" if SUPERH32
  54. default "arch/sh/configs/cayman_defconfig" if SUPERH64
  55. config RWSEM_GENERIC_SPINLOCK
  56. def_bool y
  57. config RWSEM_XCHGADD_ALGORITHM
  58. bool
  59. config GENERIC_BUG
  60. def_bool y
  61. depends on BUG && SUPERH32
  62. config GENERIC_CSUM
  63. def_bool y
  64. depends on SUPERH64
  65. config GENERIC_FIND_NEXT_BIT
  66. def_bool y
  67. config GENERIC_HWEIGHT
  68. def_bool y
  69. config IRQ_PER_CPU
  70. def_bool y
  71. config GENERIC_GPIO
  72. def_bool n
  73. config GENERIC_CALIBRATE_DELAY
  74. bool
  75. config GENERIC_IOMAP
  76. bool
  77. config GENERIC_CLOCKEVENTS
  78. def_bool y
  79. config GENERIC_CLOCKEVENTS_BROADCAST
  80. bool
  81. config GENERIC_CMOS_UPDATE
  82. def_bool y
  83. depends on SH_SH03 || SH_DREAMCAST
  84. config GENERIC_LOCKBREAK
  85. def_bool y
  86. depends on SMP && PREEMPT
  87. config SYS_SUPPORTS_PM
  88. bool
  89. depends on !SMP
  90. config ARCH_SUSPEND_POSSIBLE
  91. def_bool n
  92. config ARCH_HIBERNATION_POSSIBLE
  93. def_bool n
  94. config SYS_SUPPORTS_APM_EMULATION
  95. bool
  96. select ARCH_SUSPEND_POSSIBLE
  97. config SYS_SUPPORTS_HUGETLBFS
  98. bool
  99. config SYS_SUPPORTS_SMP
  100. bool
  101. config SYS_SUPPORTS_NUMA
  102. bool
  103. config SYS_SUPPORTS_PCI
  104. bool
  105. config SYS_SUPPORTS_CMT
  106. bool
  107. config SYS_SUPPORTS_MTU2
  108. bool
  109. config SYS_SUPPORTS_TMU
  110. bool
  111. config STACKTRACE_SUPPORT
  112. def_bool y
  113. config LOCKDEP_SUPPORT
  114. def_bool y
  115. config HAVE_LATENCYTOP_SUPPORT
  116. def_bool y
  117. config ARCH_HAS_ILOG2_U32
  118. def_bool n
  119. config ARCH_HAS_ILOG2_U64
  120. def_bool n
  121. config ARCH_NO_VIRT_TO_BUS
  122. def_bool y
  123. config ARCH_HAS_DEFAULT_IDLE
  124. def_bool y
  125. config ARCH_HAS_CPU_IDLE_WAIT
  126. def_bool y
  127. config NO_IOPORT
  128. bool
  129. config IO_TRAPPED
  130. bool
  131. config DMA_COHERENT
  132. bool
  133. config DMA_NONCOHERENT
  134. def_bool !DMA_COHERENT
  135. config NEED_DMA_MAP_STATE
  136. def_bool DMA_NONCOHERENT
  137. config NEED_SG_DMA_LENGTH
  138. def_bool y
  139. source "init/Kconfig"
  140. source "kernel/Kconfig.freezer"
  141. menu "System type"
  142. #
  143. # Processor families
  144. #
  145. config CPU_SH2
  146. bool
  147. config CPU_SH2A
  148. bool
  149. select CPU_SH2
  150. select UNCACHED_MAPPING
  151. config CPU_SH3
  152. bool
  153. select CPU_HAS_INTEVT
  154. select CPU_HAS_SR_RB
  155. select SYS_SUPPORTS_TMU
  156. config CPU_SH4
  157. bool
  158. select CPU_HAS_INTEVT
  159. select CPU_HAS_SR_RB
  160. select CPU_HAS_FPU if !CPU_SH4AL_DSP
  161. select SYS_SUPPORTS_TMU
  162. select SYS_SUPPORTS_HUGETLBFS if MMU
  163. config CPU_SH4A
  164. bool
  165. select CPU_SH4
  166. config CPU_SH4AL_DSP
  167. bool
  168. select CPU_SH4A
  169. select CPU_HAS_DSP
  170. config CPU_SH5
  171. bool
  172. select CPU_HAS_FPU
  173. select SYS_SUPPORTS_TMU
  174. select SYS_SUPPORTS_HUGETLBFS if MMU
  175. config CPU_SHX2
  176. bool
  177. config CPU_SHX3
  178. bool
  179. select DMA_COHERENT
  180. select SYS_SUPPORTS_SMP
  181. select SYS_SUPPORTS_NUMA
  182. config ARCH_SHMOBILE
  183. bool
  184. select ARCH_SUSPEND_POSSIBLE
  185. select PM
  186. select PM_RUNTIME
  187. config CPU_HAS_PMU
  188. depends on CPU_SH4 || CPU_SH4A
  189. default y
  190. bool
  191. if SUPERH32
  192. choice
  193. prompt "Processor sub-type selection"
  194. #
  195. # Processor subtypes
  196. #
  197. # SH-2 Processor Support
  198. config CPU_SUBTYPE_SH7619
  199. bool "Support SH7619 processor"
  200. select CPU_SH2
  201. select SYS_SUPPORTS_CMT
  202. # SH-2A Processor Support
  203. config CPU_SUBTYPE_SH7201
  204. bool "Support SH7201 processor"
  205. select CPU_SH2A
  206. select CPU_HAS_FPU
  207. select SYS_SUPPORTS_MTU2
  208. config CPU_SUBTYPE_SH7203
  209. bool "Support SH7203 processor"
  210. select CPU_SH2A
  211. select CPU_HAS_FPU
  212. select SYS_SUPPORTS_CMT
  213. select SYS_SUPPORTS_MTU2
  214. config CPU_SUBTYPE_SH7206
  215. bool "Support SH7206 processor"
  216. select CPU_SH2A
  217. select SYS_SUPPORTS_CMT
  218. select SYS_SUPPORTS_MTU2
  219. config CPU_SUBTYPE_SH7263
  220. bool "Support SH7263 processor"
  221. select CPU_SH2A
  222. select CPU_HAS_FPU
  223. select SYS_SUPPORTS_CMT
  224. select SYS_SUPPORTS_MTU2
  225. config CPU_SUBTYPE_MXG
  226. bool "Support MX-G processor"
  227. select CPU_SH2A
  228. select SYS_SUPPORTS_MTU2
  229. help
  230. Select MX-G if running on an R8A03022BG part.
  231. # SH-3 Processor Support
  232. config CPU_SUBTYPE_SH7705
  233. bool "Support SH7705 processor"
  234. select CPU_SH3
  235. config CPU_SUBTYPE_SH7706
  236. bool "Support SH7706 processor"
  237. select CPU_SH3
  238. help
  239. Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
  240. config CPU_SUBTYPE_SH7707
  241. bool "Support SH7707 processor"
  242. select CPU_SH3
  243. help
  244. Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
  245. config CPU_SUBTYPE_SH7708
  246. bool "Support SH7708 processor"
  247. select CPU_SH3
  248. help
  249. Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
  250. if you have a 100 Mhz SH-3 HD6417708R CPU.
  251. config CPU_SUBTYPE_SH7709
  252. bool "Support SH7709 processor"
  253. select CPU_SH3
  254. help
  255. Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
  256. config CPU_SUBTYPE_SH7710
  257. bool "Support SH7710 processor"
  258. select CPU_SH3
  259. select CPU_HAS_DSP
  260. help
  261. Select SH7710 if you have a SH3-DSP SH7710 CPU.
  262. config CPU_SUBTYPE_SH7712
  263. bool "Support SH7712 processor"
  264. select CPU_SH3
  265. select CPU_HAS_DSP
  266. help
  267. Select SH7712 if you have a SH3-DSP SH7712 CPU.
  268. config CPU_SUBTYPE_SH7720
  269. bool "Support SH7720 processor"
  270. select CPU_SH3
  271. select CPU_HAS_DSP
  272. select SYS_SUPPORTS_CMT
  273. select USB_ARCH_HAS_OHCI
  274. help
  275. Select SH7720 if you have a SH3-DSP SH7720 CPU.
  276. config CPU_SUBTYPE_SH7721
  277. bool "Support SH7721 processor"
  278. select CPU_SH3
  279. select CPU_HAS_DSP
  280. select SYS_SUPPORTS_CMT
  281. select USB_ARCH_HAS_OHCI
  282. help
  283. Select SH7721 if you have a SH3-DSP SH7721 CPU.
  284. # SH-4 Processor Support
  285. config CPU_SUBTYPE_SH7750
  286. bool "Support SH7750 processor"
  287. select CPU_SH4
  288. help
  289. Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
  290. config CPU_SUBTYPE_SH7091
  291. bool "Support SH7091 processor"
  292. select CPU_SH4
  293. help
  294. Select SH7091 if you have an SH-4 based Sega device (such as
  295. the Dreamcast, Naomi, and Naomi 2).
  296. config CPU_SUBTYPE_SH7750R
  297. bool "Support SH7750R processor"
  298. select CPU_SH4
  299. config CPU_SUBTYPE_SH7750S
  300. bool "Support SH7750S processor"
  301. select CPU_SH4
  302. config CPU_SUBTYPE_SH7751
  303. bool "Support SH7751 processor"
  304. select CPU_SH4
  305. help
  306. Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
  307. or if you have a HD6417751R CPU.
  308. config CPU_SUBTYPE_SH7751R
  309. bool "Support SH7751R processor"
  310. select CPU_SH4
  311. config CPU_SUBTYPE_SH7760
  312. bool "Support SH7760 processor"
  313. select CPU_SH4
  314. config CPU_SUBTYPE_SH4_202
  315. bool "Support SH4-202 processor"
  316. select CPU_SH4
  317. # SH-4A Processor Support
  318. config CPU_SUBTYPE_SH7723
  319. bool "Support SH7723 processor"
  320. select CPU_SH4A
  321. select CPU_SHX2
  322. select ARCH_SHMOBILE
  323. select ARCH_SPARSEMEM_ENABLE
  324. select SYS_SUPPORTS_CMT
  325. help
  326. Select SH7723 if you have an SH-MobileR2 CPU.
  327. config CPU_SUBTYPE_SH7724
  328. bool "Support SH7724 processor"
  329. select CPU_SH4A
  330. select CPU_SHX2
  331. select ARCH_SHMOBILE
  332. select ARCH_SPARSEMEM_ENABLE
  333. select SYS_SUPPORTS_CMT
  334. help
  335. Select SH7724 if you have an SH-MobileR2R CPU.
  336. config CPU_SUBTYPE_SH7757
  337. bool "Support SH7757 processor"
  338. select CPU_SH4A
  339. select CPU_SHX2
  340. help
  341. Select SH7757 if you have a SH4A SH7757 CPU.
  342. config CPU_SUBTYPE_SH7763
  343. bool "Support SH7763 processor"
  344. select CPU_SH4A
  345. select USB_ARCH_HAS_OHCI
  346. help
  347. Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
  348. config CPU_SUBTYPE_SH7770
  349. bool "Support SH7770 processor"
  350. select CPU_SH4A
  351. config CPU_SUBTYPE_SH7780
  352. bool "Support SH7780 processor"
  353. select CPU_SH4A
  354. config CPU_SUBTYPE_SH7785
  355. bool "Support SH7785 processor"
  356. select CPU_SH4A
  357. select CPU_SHX2
  358. select ARCH_SPARSEMEM_ENABLE
  359. select SYS_SUPPORTS_NUMA
  360. config CPU_SUBTYPE_SH7786
  361. bool "Support SH7786 processor"
  362. select CPU_SH4A
  363. select CPU_SHX3
  364. select CPU_HAS_PTEAEX
  365. select GENERIC_CLOCKEVENTS_BROADCAST if SMP
  366. select USB_ARCH_HAS_OHCI
  367. select USB_ARCH_HAS_EHCI
  368. config CPU_SUBTYPE_SHX3
  369. bool "Support SH-X3 processor"
  370. select CPU_SH4A
  371. select CPU_SHX3
  372. select GENERIC_CLOCKEVENTS_BROADCAST if SMP
  373. select ARCH_REQUIRE_GPIOLIB
  374. # SH4AL-DSP Processor Support
  375. config CPU_SUBTYPE_SH7343
  376. bool "Support SH7343 processor"
  377. select CPU_SH4AL_DSP
  378. select ARCH_SHMOBILE
  379. select SYS_SUPPORTS_CMT
  380. config CPU_SUBTYPE_SH7722
  381. bool "Support SH7722 processor"
  382. select CPU_SH4AL_DSP
  383. select CPU_SHX2
  384. select ARCH_SHMOBILE
  385. select ARCH_SPARSEMEM_ENABLE
  386. select SYS_SUPPORTS_NUMA
  387. select SYS_SUPPORTS_CMT
  388. config CPU_SUBTYPE_SH7366
  389. bool "Support SH7366 processor"
  390. select CPU_SH4AL_DSP
  391. select CPU_SHX2
  392. select ARCH_SHMOBILE
  393. select ARCH_SPARSEMEM_ENABLE
  394. select SYS_SUPPORTS_NUMA
  395. select SYS_SUPPORTS_CMT
  396. endchoice
  397. endif
  398. if SUPERH64
  399. choice
  400. prompt "Processor sub-type selection"
  401. # SH-5 Processor Support
  402. config CPU_SUBTYPE_SH5_101
  403. bool "Support SH5-101 processor"
  404. select CPU_SH5
  405. config CPU_SUBTYPE_SH5_103
  406. bool "Support SH5-103 processor"
  407. select CPU_SH5
  408. endchoice
  409. endif
  410. source "arch/sh/mm/Kconfig"
  411. source "arch/sh/Kconfig.cpu"
  412. source "arch/sh/boards/Kconfig"
  413. menu "Timer and clock configuration"
  414. config SH_TIMER_TMU
  415. bool "TMU timer driver"
  416. depends on SYS_SUPPORTS_TMU
  417. default y
  418. help
  419. This enables the build of the TMU timer driver.
  420. config SH_TIMER_CMT
  421. bool "CMT timer driver"
  422. depends on SYS_SUPPORTS_CMT
  423. default y
  424. help
  425. This enables build of the CMT timer driver.
  426. config SH_TIMER_MTU2
  427. bool "MTU2 timer driver"
  428. depends on SYS_SUPPORTS_MTU2
  429. default y
  430. help
  431. This enables build of the MTU2 timer driver.
  432. config SH_PCLK_FREQ
  433. int "Peripheral clock frequency (in Hz)"
  434. depends on SH_CLK_CPG_LEGACY
  435. default "31250000" if CPU_SUBTYPE_SH7619
  436. default "33333333" if CPU_SUBTYPE_SH7770 || \
  437. CPU_SUBTYPE_SH7760 || \
  438. CPU_SUBTYPE_SH7705 || \
  439. CPU_SUBTYPE_SH7203 || \
  440. CPU_SUBTYPE_SH7206 || \
  441. CPU_SUBTYPE_SH7263 || \
  442. CPU_SUBTYPE_MXG
  443. default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
  444. default "66000000" if CPU_SUBTYPE_SH4_202
  445. default "50000000"
  446. help
  447. This option is used to specify the peripheral clock frequency.
  448. This is necessary for determining the reference clock value on
  449. platforms lacking an RTC.
  450. config SH_CLK_CPG
  451. def_bool y
  452. config SH_CLK_CPG_LEGACY
  453. depends on SH_CLK_CPG
  454. def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
  455. !CPU_SHX3 && !CPU_SUBTYPE_SH7757
  456. config SH_CLK_MD
  457. int "CPU Mode Pin Setting"
  458. depends on CPU_SH2
  459. default 6 if CPU_SUBTYPE_SH7206
  460. default 5 if CPU_SUBTYPE_SH7619
  461. default 0
  462. help
  463. MD2 - MD0 pin setting.
  464. source "kernel/time/Kconfig"
  465. endmenu
  466. menu "CPU Frequency scaling"
  467. source "drivers/cpufreq/Kconfig"
  468. config SH_CPU_FREQ
  469. tristate "SuperH CPU Frequency driver"
  470. depends on CPU_FREQ
  471. select CPU_FREQ_TABLE
  472. help
  473. This adds the cpufreq driver for SuperH. Any CPU that supports
  474. clock rate rounding through the clock framework can use this
  475. driver. While it will make the kernel slightly larger, this is
  476. harmless for CPUs that don't support rate rounding. The driver
  477. will also generate a notice in the boot log before disabling
  478. itself if the CPU in question is not capable of rate rounding.
  479. For details, take a look at <file:Documentation/cpu-freq>.
  480. If unsure, say N.
  481. endmenu
  482. source "arch/sh/drivers/Kconfig"
  483. endmenu
  484. menu "Kernel features"
  485. source kernel/Kconfig.hz
  486. config KEXEC
  487. bool "kexec system call (EXPERIMENTAL)"
  488. depends on SUPERH32 && EXPERIMENTAL && MMU
  489. help
  490. kexec is a system call that implements the ability to shutdown your
  491. current kernel, and to start another kernel. It is like a reboot
  492. but it is independent of the system firmware. And like a reboot
  493. you can start any kernel with it, not just Linux.
  494. The name comes from the similarity to the exec system call.
  495. It is an ongoing process to be certain the hardware in a machine
  496. is properly shutdown, so do not be surprised if this code does not
  497. initially work for you. It may help to enable device hotplugging
  498. support. As of this writing the exact hardware interface is
  499. strongly in flux, so no good recommendation can be made.
  500. config CRASH_DUMP
  501. bool "kernel crash dumps (EXPERIMENTAL)"
  502. depends on SUPERH32 && EXPERIMENTAL && BROKEN_ON_SMP
  503. help
  504. Generate crash dump after being started by kexec.
  505. This should be normally only set in special crash dump kernels
  506. which are loaded in the main kernel with kexec-tools into
  507. a specially reserved region and then later executed after
  508. a crash by kdump/kexec. The crash dump kernel must be compiled
  509. to a memory address not used by the main kernel using
  510. MEMORY_START.
  511. For more details see Documentation/kdump/kdump.txt
  512. config KEXEC_JUMP
  513. bool "kexec jump (EXPERIMENTAL)"
  514. depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
  515. help
  516. Jump between original kernel and kexeced kernel and invoke
  517. code via KEXEC
  518. config SECCOMP
  519. bool "Enable seccomp to safely compute untrusted bytecode"
  520. depends on PROC_FS
  521. help
  522. This kernel feature is useful for number crunching applications
  523. that may need to compute untrusted bytecode during their
  524. execution. By using pipes or other transports made available to
  525. the process as file descriptors supporting the read/write
  526. syscalls, it's possible to isolate those applications in
  527. their own address space using seccomp. Once seccomp is
  528. enabled via prctl, it cannot be disabled and the task is only
  529. allowed to execute a few safe syscalls defined by each seccomp
  530. mode.
  531. If unsure, say N.
  532. config SMP
  533. bool "Symmetric multi-processing support"
  534. depends on SYS_SUPPORTS_SMP
  535. select USE_GENERIC_SMP_HELPERS
  536. ---help---
  537. This enables support for systems with more than one CPU. If you have
  538. a system with only one CPU, like most personal computers, say N. If
  539. you have a system with more than one CPU, say Y.
  540. If you say N here, the kernel will run on single and multiprocessor
  541. machines, but will use only one CPU of a multiprocessor machine. If
  542. you say Y here, the kernel will run on many, but not all,
  543. singleprocessor machines. On a singleprocessor machine, the kernel
  544. will run faster if you say N here.
  545. People using multiprocessor machines who say Y here should also say
  546. Y to "Enhanced Real Time Clock Support", below.
  547. See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
  548. available at <http://www.tldp.org/docs.html#howto>.
  549. If you don't know what to do here, say N.
  550. config NR_CPUS
  551. int "Maximum number of CPUs (2-32)"
  552. range 2 32
  553. depends on SMP
  554. default "4" if CPU_SUBTYPE_SHX3
  555. default "2"
  556. help
  557. This allows you to specify the maximum number of CPUs which this
  558. kernel will support. The maximum supported value is 32 and the
  559. minimum value which makes sense is 2.
  560. This is purely to save memory - each supported CPU adds
  561. approximately eight kilobytes to the kernel image.
  562. config HOTPLUG_CPU
  563. bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
  564. depends on SMP && HOTPLUG && EXPERIMENTAL
  565. help
  566. Say Y here to experiment with turning CPUs off and on. CPUs
  567. can be controlled through /sys/devices/system/cpu.
  568. source "kernel/Kconfig.preempt"
  569. config GUSA
  570. def_bool y
  571. depends on !SMP && SUPERH32
  572. help
  573. This enables support for gUSA (general UserSpace Atomicity).
  574. This is the default implementation for both UP and non-ll/sc
  575. CPUs, and is used by the libc, amongst others.
  576. For additional information, design information can be found
  577. in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
  578. This should only be disabled for special cases where alternate
  579. atomicity implementations exist.
  580. config GUSA_RB
  581. bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
  582. depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
  583. help
  584. Enabling this option will allow the kernel to implement some
  585. atomic operations using a software implementation of load-locked/
  586. store-conditional (LLSC). On machines which do not have hardware
  587. LLSC, this should be more efficient than the other alternative of
  588. disabling interrupts around the atomic sequence.
  589. config HW_PERF_EVENTS
  590. bool "Enable hardware performance counter support for perf events"
  591. depends on PERF_EVENTS && CPU_HAS_PMU
  592. default y
  593. help
  594. Enable hardware performance counter support for perf events. If
  595. disabled, perf events will use software events only.
  596. source "drivers/sh/Kconfig"
  597. endmenu
  598. menu "Boot options"
  599. config ZERO_PAGE_OFFSET
  600. hex
  601. default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
  602. SH_7751_SOLUTION_ENGINE
  603. default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
  604. default "0x00002000" if PAGE_SIZE_8KB
  605. default "0x00001000"
  606. help
  607. This sets the default offset of zero page.
  608. config BOOT_LINK_OFFSET
  609. hex
  610. default "0x00210000" if SH_SHMIN
  611. default "0x00400000" if SH_CAYMAN
  612. default "0x00810000" if SH_7780_SOLUTION_ENGINE
  613. default "0x009e0000" if SH_TITAN
  614. default "0x01800000" if SH_SDK7780
  615. default "0x02000000" if SH_EDOSK7760
  616. default "0x00800000"
  617. help
  618. This option allows you to set the link address offset of the zImage.
  619. This can be useful if you are on a board which has a small amount of
  620. memory.
  621. config ENTRY_OFFSET
  622. hex
  623. default "0x00001000" if PAGE_SIZE_4KB
  624. default "0x00002000" if PAGE_SIZE_8KB
  625. default "0x00004000" if PAGE_SIZE_16KB
  626. default "0x00010000" if PAGE_SIZE_64KB
  627. default "0x00000000"
  628. config ROMIMAGE_MMCIF
  629. bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
  630. depends on CPU_SUBTYPE_SH7724 && EXPERIMENTAL
  631. help
  632. Say Y here to include experimental MMCIF loading code in
  633. romImage. With this enabled it is possible to write the romImage
  634. kernel image to an MMC card and boot the kernel straight from
  635. the reset vector. At reset the processor Mask ROM will load the
  636. first part of the romImage which in turn loads the rest the kernel
  637. image to RAM using the MMCIF hardware block.
  638. choice
  639. prompt "Kernel command line"
  640. optional
  641. default CMDLINE_OVERWRITE
  642. help
  643. Setting this option allows the kernel command line arguments
  644. to be set.
  645. config CMDLINE_OVERWRITE
  646. bool "Overwrite bootloader kernel arguments"
  647. help
  648. Given string will overwrite any arguments passed in by
  649. a bootloader.
  650. config CMDLINE_EXTEND
  651. bool "Extend bootloader kernel arguments"
  652. help
  653. Given string will be concatenated with arguments passed in
  654. by a bootloader.
  655. endchoice
  656. config CMDLINE
  657. string "Kernel command line arguments string"
  658. depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
  659. default "console=ttySC1,115200"
  660. endmenu
  661. menu "Bus options"
  662. config SUPERHYWAY
  663. tristate "SuperHyway Bus support"
  664. depends on CPU_SUBTYPE_SH4_202
  665. config MAPLE
  666. bool "Maple Bus support"
  667. depends on SH_DREAMCAST
  668. help
  669. The Maple Bus is SEGA's serial communication bus for peripherals
  670. on the Dreamcast. Without this bus support you won't be able to
  671. get your Dreamcast keyboard etc to work, so most users
  672. probably want to say 'Y' here, unless you are only using the
  673. Dreamcast with a serial line terminal or a remote network
  674. connection.
  675. config PCI
  676. bool "PCI support"
  677. depends on SYS_SUPPORTS_PCI
  678. select PCI_DOMAINS
  679. help
  680. Find out whether you have a PCI motherboard. PCI is the name of a
  681. bus system, i.e. the way the CPU talks to the other stuff inside
  682. your box. If you have PCI, say Y, otherwise N.
  683. config PCI_DOMAINS
  684. bool
  685. source "drivers/pci/pcie/Kconfig"
  686. source "drivers/pci/Kconfig"
  687. source "drivers/pcmcia/Kconfig"
  688. source "drivers/pci/hotplug/Kconfig"
  689. endmenu
  690. menu "Executable file formats"
  691. source "fs/Kconfig.binfmt"
  692. endmenu
  693. menu "Power management options (EXPERIMENTAL)"
  694. depends on EXPERIMENTAL
  695. source "kernel/power/Kconfig"
  696. source "drivers/cpuidle/Kconfig"
  697. endmenu
  698. source "net/Kconfig"
  699. source "drivers/Kconfig"
  700. source "fs/Kconfig"
  701. source "arch/sh/Kconfig.debug"
  702. source "security/Kconfig"
  703. source "crypto/Kconfig"
  704. menuconfig VIRTUALIZATION
  705. bool "Virtualization"
  706. default n
  707. ---help---
  708. Say Y here to get to see options for using your Linux host to run other
  709. operating systems inside virtual machines (guests).
  710. This option alone does not add any kernel code.
  711. If you say N, all options in this submenu will be skipped and disabled.
  712. if VIRTUALIZATION
  713. source drivers/virtio/Kconfig
  714. endif # VIRTUALIZATION
  715. source "lib/Kconfig"