Kconfig 20 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. select GENERIC_HARDIRQS_NO_DEPRECATED
  26. help
  27. The SuperH is a RISC processor targeted for use in embedded systems
  28. and consumer electronics; it was also used in the Sega Dreamcast
  29. gaming console. The SuperH port has a home page at
  30. <http://www.linux-sh.org/>.
  31. config SUPERH32
  32. def_bool ARCH = "sh"
  33. select HAVE_KPROBES
  34. select HAVE_KRETPROBES
  35. select HAVE_IOREMAP_PROT if MMU && !X2TLB
  36. select HAVE_FUNCTION_TRACER
  37. select HAVE_FTRACE_MCOUNT_RECORD
  38. select HAVE_DYNAMIC_FTRACE
  39. select HAVE_FUNCTION_TRACE_MCOUNT_TEST
  40. select HAVE_FTRACE_NMI_ENTER if DYNAMIC_FTRACE
  41. select HAVE_FUNCTION_GRAPH_TRACER
  42. select HAVE_ARCH_KGDB
  43. select HAVE_HW_BREAKPOINT
  44. select HAVE_MIXED_BREAKPOINTS_REGS
  45. select PERF_EVENTS
  46. select ARCH_HIBERNATION_POSSIBLE if MMU
  47. select SPARSE_IRQ
  48. config SUPERH64
  49. def_bool ARCH = "sh64"
  50. config ARCH_DEFCONFIG
  51. string
  52. default "arch/sh/configs/shx3_defconfig" if SUPERH32
  53. default "arch/sh/configs/cayman_defconfig" if SUPERH64
  54. config RWSEM_GENERIC_SPINLOCK
  55. def_bool y
  56. config RWSEM_XCHGADD_ALGORITHM
  57. bool
  58. config GENERIC_BUG
  59. def_bool y
  60. depends on BUG && SUPERH32
  61. config GENERIC_CSUM
  62. def_bool y
  63. depends on SUPERH64
  64. config GENERIC_FIND_NEXT_BIT
  65. def_bool y
  66. config GENERIC_HWEIGHT
  67. def_bool y
  68. config IRQ_PER_CPU
  69. def_bool y
  70. config GENERIC_GPIO
  71. def_bool n
  72. config GENERIC_CALIBRATE_DELAY
  73. bool
  74. config GENERIC_IOMAP
  75. bool
  76. config GENERIC_CLOCKEVENTS
  77. def_bool y
  78. config GENERIC_CLOCKEVENTS_BROADCAST
  79. bool
  80. config GENERIC_CMOS_UPDATE
  81. def_bool y
  82. depends on SH_SH03 || SH_DREAMCAST
  83. config GENERIC_LOCKBREAK
  84. def_bool y
  85. depends on SMP && PREEMPT
  86. config SYS_SUPPORTS_PM
  87. bool
  88. depends on !SMP
  89. config ARCH_SUSPEND_POSSIBLE
  90. def_bool n
  91. config ARCH_HIBERNATION_POSSIBLE
  92. def_bool n
  93. config SYS_SUPPORTS_APM_EMULATION
  94. bool
  95. select ARCH_SUSPEND_POSSIBLE
  96. config SYS_SUPPORTS_HUGETLBFS
  97. bool
  98. config SYS_SUPPORTS_SMP
  99. bool
  100. config SYS_SUPPORTS_NUMA
  101. bool
  102. config SYS_SUPPORTS_PCI
  103. bool
  104. config SYS_SUPPORTS_CMT
  105. bool
  106. config SYS_SUPPORTS_MTU2
  107. bool
  108. config SYS_SUPPORTS_TMU
  109. bool
  110. config STACKTRACE_SUPPORT
  111. def_bool y
  112. config LOCKDEP_SUPPORT
  113. def_bool y
  114. config HAVE_LATENCYTOP_SUPPORT
  115. def_bool y
  116. config ARCH_HAS_ILOG2_U32
  117. def_bool n
  118. config ARCH_HAS_ILOG2_U64
  119. def_bool n
  120. config ARCH_NO_VIRT_TO_BUS
  121. def_bool y
  122. config ARCH_HAS_DEFAULT_IDLE
  123. def_bool y
  124. config ARCH_HAS_CPU_IDLE_WAIT
  125. def_bool y
  126. config NO_IOPORT
  127. def_bool !PCI
  128. depends on !SH_CAYMAN && !SH_SH4202_MICRODEV
  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. select ARCH_WANT_OPTIONAL_GPIOLIB
  215. config CPU_SUBTYPE_SH7206
  216. bool "Support SH7206 processor"
  217. select CPU_SH2A
  218. select SYS_SUPPORTS_CMT
  219. select SYS_SUPPORTS_MTU2
  220. config CPU_SUBTYPE_SH7263
  221. bool "Support SH7263 processor"
  222. select CPU_SH2A
  223. select CPU_HAS_FPU
  224. select SYS_SUPPORTS_CMT
  225. select SYS_SUPPORTS_MTU2
  226. config CPU_SUBTYPE_MXG
  227. bool "Support MX-G processor"
  228. select CPU_SH2A
  229. select SYS_SUPPORTS_MTU2
  230. help
  231. Select MX-G if running on an R8A03022BG part.
  232. # SH-3 Processor Support
  233. config CPU_SUBTYPE_SH7705
  234. bool "Support SH7705 processor"
  235. select CPU_SH3
  236. config CPU_SUBTYPE_SH7706
  237. bool "Support SH7706 processor"
  238. select CPU_SH3
  239. help
  240. Select SH7706 if you have a 133 Mhz SH-3 HD6417706 CPU.
  241. config CPU_SUBTYPE_SH7707
  242. bool "Support SH7707 processor"
  243. select CPU_SH3
  244. help
  245. Select SH7707 if you have a 60 Mhz SH-3 HD6417707 CPU.
  246. config CPU_SUBTYPE_SH7708
  247. bool "Support SH7708 processor"
  248. select CPU_SH3
  249. help
  250. Select SH7708 if you have a 60 Mhz SH-3 HD6417708S or
  251. if you have a 100 Mhz SH-3 HD6417708R CPU.
  252. config CPU_SUBTYPE_SH7709
  253. bool "Support SH7709 processor"
  254. select CPU_SH3
  255. help
  256. Select SH7709 if you have a 80 Mhz SH-3 HD6417709 CPU.
  257. config CPU_SUBTYPE_SH7710
  258. bool "Support SH7710 processor"
  259. select CPU_SH3
  260. select CPU_HAS_DSP
  261. help
  262. Select SH7710 if you have a SH3-DSP SH7710 CPU.
  263. config CPU_SUBTYPE_SH7712
  264. bool "Support SH7712 processor"
  265. select CPU_SH3
  266. select CPU_HAS_DSP
  267. help
  268. Select SH7712 if you have a SH3-DSP SH7712 CPU.
  269. config CPU_SUBTYPE_SH7720
  270. bool "Support SH7720 processor"
  271. select CPU_SH3
  272. select CPU_HAS_DSP
  273. select SYS_SUPPORTS_CMT
  274. select ARCH_WANT_OPTIONAL_GPIOLIB
  275. help
  276. Select SH7720 if you have a SH3-DSP SH7720 CPU.
  277. config CPU_SUBTYPE_SH7721
  278. bool "Support SH7721 processor"
  279. select CPU_SH3
  280. select CPU_HAS_DSP
  281. select SYS_SUPPORTS_CMT
  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. select ARCH_WANT_OPTIONAL_GPIOLIB
  326. help
  327. Select SH7723 if you have an SH-MobileR2 CPU.
  328. config CPU_SUBTYPE_SH7724
  329. bool "Support SH7724 processor"
  330. select CPU_SH4A
  331. select CPU_SHX2
  332. select ARCH_SHMOBILE
  333. select ARCH_SPARSEMEM_ENABLE
  334. select SYS_SUPPORTS_CMT
  335. select ARCH_WANT_OPTIONAL_GPIOLIB
  336. help
  337. Select SH7724 if you have an SH-MobileR2R CPU.
  338. config CPU_SUBTYPE_SH7757
  339. bool "Support SH7757 processor"
  340. select CPU_SH4A
  341. select CPU_SHX2
  342. select ARCH_WANT_OPTIONAL_GPIOLIB
  343. help
  344. Select SH7757 if you have a SH4A SH7757 CPU.
  345. config CPU_SUBTYPE_SH7763
  346. bool "Support SH7763 processor"
  347. select CPU_SH4A
  348. help
  349. Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
  350. config CPU_SUBTYPE_SH7770
  351. bool "Support SH7770 processor"
  352. select CPU_SH4A
  353. config CPU_SUBTYPE_SH7780
  354. bool "Support SH7780 processor"
  355. select CPU_SH4A
  356. config CPU_SUBTYPE_SH7785
  357. bool "Support SH7785 processor"
  358. select CPU_SH4A
  359. select CPU_SHX2
  360. select ARCH_SPARSEMEM_ENABLE
  361. select SYS_SUPPORTS_NUMA
  362. select ARCH_WANT_OPTIONAL_GPIOLIB
  363. config CPU_SUBTYPE_SH7786
  364. bool "Support SH7786 processor"
  365. select CPU_SH4A
  366. select CPU_SHX3
  367. select CPU_HAS_PTEAEX
  368. select GENERIC_CLOCKEVENTS_BROADCAST if SMP
  369. select ARCH_WANT_OPTIONAL_GPIOLIB
  370. config CPU_SUBTYPE_SHX3
  371. bool "Support SH-X3 processor"
  372. select CPU_SH4A
  373. select CPU_SHX3
  374. select GENERIC_CLOCKEVENTS_BROADCAST if SMP
  375. select ARCH_REQUIRE_GPIOLIB
  376. # SH4AL-DSP Processor Support
  377. config CPU_SUBTYPE_SH7343
  378. bool "Support SH7343 processor"
  379. select CPU_SH4AL_DSP
  380. select ARCH_SHMOBILE
  381. select SYS_SUPPORTS_CMT
  382. config CPU_SUBTYPE_SH7722
  383. bool "Support SH7722 processor"
  384. select CPU_SH4AL_DSP
  385. select CPU_SHX2
  386. select ARCH_SHMOBILE
  387. select ARCH_SPARSEMEM_ENABLE
  388. select SYS_SUPPORTS_NUMA
  389. select SYS_SUPPORTS_CMT
  390. select ARCH_WANT_OPTIONAL_GPIOLIB
  391. config CPU_SUBTYPE_SH7366
  392. bool "Support SH7366 processor"
  393. select CPU_SH4AL_DSP
  394. select CPU_SHX2
  395. select ARCH_SHMOBILE
  396. select ARCH_SPARSEMEM_ENABLE
  397. select SYS_SUPPORTS_NUMA
  398. select SYS_SUPPORTS_CMT
  399. endchoice
  400. endif
  401. if SUPERH64
  402. choice
  403. prompt "Processor sub-type selection"
  404. # SH-5 Processor Support
  405. config CPU_SUBTYPE_SH5_101
  406. bool "Support SH5-101 processor"
  407. select CPU_SH5
  408. config CPU_SUBTYPE_SH5_103
  409. bool "Support SH5-103 processor"
  410. select CPU_SH5
  411. endchoice
  412. endif
  413. source "arch/sh/mm/Kconfig"
  414. source "arch/sh/Kconfig.cpu"
  415. source "arch/sh/boards/Kconfig"
  416. menu "Timer and clock configuration"
  417. config SH_TIMER_TMU
  418. bool "TMU timer driver"
  419. depends on SYS_SUPPORTS_TMU
  420. default y
  421. help
  422. This enables the build of the TMU timer driver.
  423. config SH_TIMER_CMT
  424. bool "CMT timer driver"
  425. depends on SYS_SUPPORTS_CMT
  426. default y
  427. help
  428. This enables build of the CMT timer driver.
  429. config SH_TIMER_MTU2
  430. bool "MTU2 timer driver"
  431. depends on SYS_SUPPORTS_MTU2
  432. default y
  433. help
  434. This enables build of the MTU2 timer driver.
  435. config SH_PCLK_FREQ
  436. int "Peripheral clock frequency (in Hz)"
  437. depends on SH_CLK_CPG_LEGACY
  438. default "31250000" if CPU_SUBTYPE_SH7619
  439. default "33333333" if CPU_SUBTYPE_SH7770 || \
  440. CPU_SUBTYPE_SH7760 || \
  441. CPU_SUBTYPE_SH7705 || \
  442. CPU_SUBTYPE_SH7203 || \
  443. CPU_SUBTYPE_SH7206 || \
  444. CPU_SUBTYPE_SH7263 || \
  445. CPU_SUBTYPE_MXG
  446. default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
  447. default "66000000" if CPU_SUBTYPE_SH4_202
  448. default "50000000"
  449. help
  450. This option is used to specify the peripheral clock frequency.
  451. This is necessary for determining the reference clock value on
  452. platforms lacking an RTC.
  453. config SH_CLK_CPG
  454. def_bool y
  455. config SH_CLK_CPG_LEGACY
  456. depends on SH_CLK_CPG
  457. def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
  458. !CPU_SHX3 && !CPU_SUBTYPE_SH7757
  459. source "kernel/time/Kconfig"
  460. endmenu
  461. menu "CPU Frequency scaling"
  462. source "drivers/cpufreq/Kconfig"
  463. config SH_CPU_FREQ
  464. tristate "SuperH CPU Frequency driver"
  465. depends on CPU_FREQ
  466. select CPU_FREQ_TABLE
  467. help
  468. This adds the cpufreq driver for SuperH. Any CPU that supports
  469. clock rate rounding through the clock framework can use this
  470. driver. While it will make the kernel slightly larger, this is
  471. harmless for CPUs that don't support rate rounding. The driver
  472. will also generate a notice in the boot log before disabling
  473. itself if the CPU in question is not capable of rate rounding.
  474. For details, take a look at <file:Documentation/cpu-freq>.
  475. If unsure, say N.
  476. endmenu
  477. source "arch/sh/drivers/Kconfig"
  478. endmenu
  479. menu "Kernel features"
  480. source kernel/Kconfig.hz
  481. config KEXEC
  482. bool "kexec system call (EXPERIMENTAL)"
  483. depends on SUPERH32 && EXPERIMENTAL && MMU
  484. help
  485. kexec is a system call that implements the ability to shutdown your
  486. current kernel, and to start another kernel. It is like a reboot
  487. but it is independent of the system firmware. And like a reboot
  488. you can start any kernel with it, not just Linux.
  489. The name comes from the similarity to the exec system call.
  490. It is an ongoing process to be certain the hardware in a machine
  491. is properly shutdown, so do not be surprised if this code does not
  492. initially work for you. It may help to enable device hotplugging
  493. support. As of this writing the exact hardware interface is
  494. strongly in flux, so no good recommendation can be made.
  495. config CRASH_DUMP
  496. bool "kernel crash dumps (EXPERIMENTAL)"
  497. depends on SUPERH32 && EXPERIMENTAL && BROKEN_ON_SMP
  498. help
  499. Generate crash dump after being started by kexec.
  500. This should be normally only set in special crash dump kernels
  501. which are loaded in the main kernel with kexec-tools into
  502. a specially reserved region and then later executed after
  503. a crash by kdump/kexec. The crash dump kernel must be compiled
  504. to a memory address not used by the main kernel using
  505. MEMORY_START.
  506. For more details see Documentation/kdump/kdump.txt
  507. config KEXEC_JUMP
  508. bool "kexec jump (EXPERIMENTAL)"
  509. depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
  510. help
  511. Jump between original kernel and kexeced kernel and invoke
  512. code via KEXEC
  513. config SECCOMP
  514. bool "Enable seccomp to safely compute untrusted bytecode"
  515. depends on PROC_FS
  516. help
  517. This kernel feature is useful for number crunching applications
  518. that may need to compute untrusted bytecode during their
  519. execution. By using pipes or other transports made available to
  520. the process as file descriptors supporting the read/write
  521. syscalls, it's possible to isolate those applications in
  522. their own address space using seccomp. Once seccomp is
  523. enabled via prctl, it cannot be disabled and the task is only
  524. allowed to execute a few safe syscalls defined by each seccomp
  525. mode.
  526. If unsure, say N.
  527. config SMP
  528. bool "Symmetric multi-processing support"
  529. depends on SYS_SUPPORTS_SMP
  530. select USE_GENERIC_SMP_HELPERS
  531. ---help---
  532. This enables support for systems with more than one CPU. If you have
  533. a system with only one CPU, like most personal computers, say N. If
  534. you have a system with more than one CPU, say Y.
  535. If you say N here, the kernel will run on single and multiprocessor
  536. machines, but will use only one CPU of a multiprocessor machine. If
  537. you say Y here, the kernel will run on many, but not all,
  538. singleprocessor machines. On a singleprocessor machine, the kernel
  539. will run faster if you say N here.
  540. People using multiprocessor machines who say Y here should also say
  541. Y to "Enhanced Real Time Clock Support", below.
  542. See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
  543. available at <http://www.tldp.org/docs.html#howto>.
  544. If you don't know what to do here, say N.
  545. config NR_CPUS
  546. int "Maximum number of CPUs (2-32)"
  547. range 2 32
  548. depends on SMP
  549. default "4" if CPU_SUBTYPE_SHX3
  550. default "2"
  551. help
  552. This allows you to specify the maximum number of CPUs which this
  553. kernel will support. The maximum supported value is 32 and the
  554. minimum value which makes sense is 2.
  555. This is purely to save memory - each supported CPU adds
  556. approximately eight kilobytes to the kernel image.
  557. config HOTPLUG_CPU
  558. bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
  559. depends on SMP && HOTPLUG && EXPERIMENTAL
  560. help
  561. Say Y here to experiment with turning CPUs off and on. CPUs
  562. can be controlled through /sys/devices/system/cpu.
  563. source "kernel/Kconfig.preempt"
  564. config GUSA
  565. def_bool y
  566. depends on !SMP && SUPERH32
  567. help
  568. This enables support for gUSA (general UserSpace Atomicity).
  569. This is the default implementation for both UP and non-ll/sc
  570. CPUs, and is used by the libc, amongst others.
  571. For additional information, design information can be found
  572. in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
  573. This should only be disabled for special cases where alternate
  574. atomicity implementations exist.
  575. config GUSA_RB
  576. bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
  577. depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
  578. help
  579. Enabling this option will allow the kernel to implement some
  580. atomic operations using a software implementation of load-locked/
  581. store-conditional (LLSC). On machines which do not have hardware
  582. LLSC, this should be more efficient than the other alternative of
  583. disabling interrupts around the atomic sequence.
  584. config HW_PERF_EVENTS
  585. bool "Enable hardware performance counter support for perf events"
  586. depends on PERF_EVENTS && CPU_HAS_PMU
  587. default y
  588. help
  589. Enable hardware performance counter support for perf events. If
  590. disabled, perf events will use software events only.
  591. source "drivers/sh/Kconfig"
  592. endmenu
  593. menu "Boot options"
  594. config ZERO_PAGE_OFFSET
  595. hex
  596. default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
  597. SH_7751_SOLUTION_ENGINE
  598. default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
  599. default "0x00002000" if PAGE_SIZE_8KB
  600. default "0x00001000"
  601. help
  602. This sets the default offset of zero page.
  603. config BOOT_LINK_OFFSET
  604. hex
  605. default "0x00210000" if SH_SHMIN
  606. default "0x00400000" if SH_CAYMAN
  607. default "0x00810000" if SH_7780_SOLUTION_ENGINE
  608. default "0x009e0000" if SH_TITAN
  609. default "0x01800000" if SH_SDK7780
  610. default "0x02000000" if SH_EDOSK7760
  611. default "0x00800000"
  612. help
  613. This option allows you to set the link address offset of the zImage.
  614. This can be useful if you are on a board which has a small amount of
  615. memory.
  616. config ENTRY_OFFSET
  617. hex
  618. default "0x00001000" if PAGE_SIZE_4KB
  619. default "0x00002000" if PAGE_SIZE_8KB
  620. default "0x00004000" if PAGE_SIZE_16KB
  621. default "0x00010000" if PAGE_SIZE_64KB
  622. default "0x00000000"
  623. config ROMIMAGE_MMCIF
  624. bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
  625. depends on CPU_SUBTYPE_SH7724 && EXPERIMENTAL
  626. help
  627. Say Y here to include experimental MMCIF loading code in
  628. romImage. With this enabled it is possible to write the romImage
  629. kernel image to an MMC card and boot the kernel straight from
  630. the reset vector. At reset the processor Mask ROM will load the
  631. first part of the romImage which in turn loads the rest the kernel
  632. image to RAM using the MMCIF hardware block.
  633. choice
  634. prompt "Kernel command line"
  635. optional
  636. default CMDLINE_OVERWRITE
  637. help
  638. Setting this option allows the kernel command line arguments
  639. to be set.
  640. config CMDLINE_OVERWRITE
  641. bool "Overwrite bootloader kernel arguments"
  642. help
  643. Given string will overwrite any arguments passed in by
  644. a bootloader.
  645. config CMDLINE_EXTEND
  646. bool "Extend bootloader kernel arguments"
  647. help
  648. Given string will be concatenated with arguments passed in
  649. by a bootloader.
  650. endchoice
  651. config CMDLINE
  652. string "Kernel command line arguments string"
  653. depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
  654. default "console=ttySC1,115200"
  655. endmenu
  656. menu "Bus options"
  657. config SUPERHYWAY
  658. tristate "SuperHyway Bus support"
  659. depends on CPU_SUBTYPE_SH4_202
  660. config MAPLE
  661. bool "Maple Bus support"
  662. depends on SH_DREAMCAST
  663. help
  664. The Maple Bus is SEGA's serial communication bus for peripherals
  665. on the Dreamcast. Without this bus support you won't be able to
  666. get your Dreamcast keyboard etc to work, so most users
  667. probably want to say 'Y' here, unless you are only using the
  668. Dreamcast with a serial line terminal or a remote network
  669. connection.
  670. config PCI
  671. bool "PCI support"
  672. depends on SYS_SUPPORTS_PCI
  673. select PCI_DOMAINS
  674. help
  675. Find out whether you have a PCI motherboard. PCI is the name of a
  676. bus system, i.e. the way the CPU talks to the other stuff inside
  677. your box. If you have PCI, say Y, otherwise N.
  678. config PCI_DOMAINS
  679. bool
  680. source "drivers/pci/pcie/Kconfig"
  681. source "drivers/pci/Kconfig"
  682. source "drivers/pcmcia/Kconfig"
  683. source "drivers/pci/hotplug/Kconfig"
  684. endmenu
  685. menu "Executable file formats"
  686. source "fs/Kconfig.binfmt"
  687. endmenu
  688. menu "Power management options (EXPERIMENTAL)"
  689. depends on EXPERIMENTAL
  690. source "kernel/power/Kconfig"
  691. source "drivers/cpuidle/Kconfig"
  692. endmenu
  693. source "net/Kconfig"
  694. source "drivers/Kconfig"
  695. source "fs/Kconfig"
  696. source "arch/sh/Kconfig.debug"
  697. source "security/Kconfig"
  698. source "crypto/Kconfig"
  699. menuconfig VIRTUALIZATION
  700. bool "Virtualization"
  701. default n
  702. ---help---
  703. Say Y here to get to see options for using your Linux host to run other
  704. operating systems inside virtual machines (guests).
  705. This option alone does not add any kernel code.
  706. If you say N, all options in this submenu will be skipped and disabled.
  707. if VIRTUALIZATION
  708. source drivers/virtio/Kconfig
  709. endif # VIRTUALIZATION
  710. source "lib/Kconfig"