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. bool
  128. config IO_TRAPPED
  129. bool
  130. config DMA_COHERENT
  131. bool
  132. config DMA_NONCOHERENT
  133. def_bool !DMA_COHERENT
  134. config NEED_DMA_MAP_STATE
  135. def_bool DMA_NONCOHERENT
  136. config NEED_SG_DMA_LENGTH
  137. def_bool y
  138. source "init/Kconfig"
  139. source "kernel/Kconfig.freezer"
  140. menu "System type"
  141. #
  142. # Processor families
  143. #
  144. config CPU_SH2
  145. bool
  146. config CPU_SH2A
  147. bool
  148. select CPU_SH2
  149. select UNCACHED_MAPPING
  150. config CPU_SH3
  151. bool
  152. select CPU_HAS_INTEVT
  153. select CPU_HAS_SR_RB
  154. select SYS_SUPPORTS_TMU
  155. config CPU_SH4
  156. bool
  157. select CPU_HAS_INTEVT
  158. select CPU_HAS_SR_RB
  159. select CPU_HAS_FPU if !CPU_SH4AL_DSP
  160. select SYS_SUPPORTS_TMU
  161. select SYS_SUPPORTS_HUGETLBFS if MMU
  162. config CPU_SH4A
  163. bool
  164. select CPU_SH4
  165. config CPU_SH4AL_DSP
  166. bool
  167. select CPU_SH4A
  168. select CPU_HAS_DSP
  169. config CPU_SH5
  170. bool
  171. select CPU_HAS_FPU
  172. select SYS_SUPPORTS_TMU
  173. select SYS_SUPPORTS_HUGETLBFS if MMU
  174. config CPU_SHX2
  175. bool
  176. config CPU_SHX3
  177. bool
  178. select DMA_COHERENT
  179. select SYS_SUPPORTS_SMP
  180. select SYS_SUPPORTS_NUMA
  181. config ARCH_SHMOBILE
  182. bool
  183. select ARCH_SUSPEND_POSSIBLE
  184. select PM
  185. select PM_RUNTIME
  186. config CPU_HAS_PMU
  187. depends on CPU_SH4 || CPU_SH4A
  188. default y
  189. bool
  190. if SUPERH32
  191. choice
  192. prompt "Processor sub-type selection"
  193. #
  194. # Processor subtypes
  195. #
  196. # SH-2 Processor Support
  197. config CPU_SUBTYPE_SH7619
  198. bool "Support SH7619 processor"
  199. select CPU_SH2
  200. select SYS_SUPPORTS_CMT
  201. # SH-2A Processor Support
  202. config CPU_SUBTYPE_SH7201
  203. bool "Support SH7201 processor"
  204. select CPU_SH2A
  205. select CPU_HAS_FPU
  206. select SYS_SUPPORTS_MTU2
  207. config CPU_SUBTYPE_SH7203
  208. bool "Support SH7203 processor"
  209. select CPU_SH2A
  210. select CPU_HAS_FPU
  211. select SYS_SUPPORTS_CMT
  212. select SYS_SUPPORTS_MTU2
  213. select ARCH_WANT_OPTIONAL_GPIOLIB
  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 ARCH_WANT_OPTIONAL_GPIOLIB
  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. help
  282. Select SH7721 if you have a SH3-DSP SH7721 CPU.
  283. # SH-4 Processor Support
  284. config CPU_SUBTYPE_SH7750
  285. bool "Support SH7750 processor"
  286. select CPU_SH4
  287. help
  288. Select SH7750 if you have a 200 Mhz SH-4 HD6417750 CPU.
  289. config CPU_SUBTYPE_SH7091
  290. bool "Support SH7091 processor"
  291. select CPU_SH4
  292. help
  293. Select SH7091 if you have an SH-4 based Sega device (such as
  294. the Dreamcast, Naomi, and Naomi 2).
  295. config CPU_SUBTYPE_SH7750R
  296. bool "Support SH7750R processor"
  297. select CPU_SH4
  298. config CPU_SUBTYPE_SH7750S
  299. bool "Support SH7750S processor"
  300. select CPU_SH4
  301. config CPU_SUBTYPE_SH7751
  302. bool "Support SH7751 processor"
  303. select CPU_SH4
  304. help
  305. Select SH7751 if you have a 166 Mhz SH-4 HD6417751 CPU,
  306. or if you have a HD6417751R CPU.
  307. config CPU_SUBTYPE_SH7751R
  308. bool "Support SH7751R processor"
  309. select CPU_SH4
  310. config CPU_SUBTYPE_SH7760
  311. bool "Support SH7760 processor"
  312. select CPU_SH4
  313. config CPU_SUBTYPE_SH4_202
  314. bool "Support SH4-202 processor"
  315. select CPU_SH4
  316. # SH-4A Processor Support
  317. config CPU_SUBTYPE_SH7723
  318. bool "Support SH7723 processor"
  319. select CPU_SH4A
  320. select CPU_SHX2
  321. select ARCH_SHMOBILE
  322. select ARCH_SPARSEMEM_ENABLE
  323. select SYS_SUPPORTS_CMT
  324. select ARCH_WANT_OPTIONAL_GPIOLIB
  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. select ARCH_WANT_OPTIONAL_GPIOLIB
  335. help
  336. Select SH7724 if you have an SH-MobileR2R CPU.
  337. config CPU_SUBTYPE_SH7757
  338. bool "Support SH7757 processor"
  339. select CPU_SH4A
  340. select CPU_SHX2
  341. select ARCH_WANT_OPTIONAL_GPIOLIB
  342. help
  343. Select SH7757 if you have a SH4A SH7757 CPU.
  344. config CPU_SUBTYPE_SH7763
  345. bool "Support SH7763 processor"
  346. select CPU_SH4A
  347. help
  348. Select SH7763 if you have a SH4A SH7763(R5S77631) CPU.
  349. config CPU_SUBTYPE_SH7770
  350. bool "Support SH7770 processor"
  351. select CPU_SH4A
  352. config CPU_SUBTYPE_SH7780
  353. bool "Support SH7780 processor"
  354. select CPU_SH4A
  355. config CPU_SUBTYPE_SH7785
  356. bool "Support SH7785 processor"
  357. select CPU_SH4A
  358. select CPU_SHX2
  359. select ARCH_SPARSEMEM_ENABLE
  360. select SYS_SUPPORTS_NUMA
  361. select ARCH_WANT_OPTIONAL_GPIOLIB
  362. config CPU_SUBTYPE_SH7786
  363. bool "Support SH7786 processor"
  364. select CPU_SH4A
  365. select CPU_SHX3
  366. select CPU_HAS_PTEAEX
  367. select GENERIC_CLOCKEVENTS_BROADCAST if SMP
  368. select ARCH_WANT_OPTIONAL_GPIOLIB
  369. config CPU_SUBTYPE_SHX3
  370. bool "Support SH-X3 processor"
  371. select CPU_SH4A
  372. select CPU_SHX3
  373. select GENERIC_CLOCKEVENTS_BROADCAST if SMP
  374. select ARCH_REQUIRE_GPIOLIB
  375. # SH4AL-DSP Processor Support
  376. config CPU_SUBTYPE_SH7343
  377. bool "Support SH7343 processor"
  378. select CPU_SH4AL_DSP
  379. select ARCH_SHMOBILE
  380. select SYS_SUPPORTS_CMT
  381. config CPU_SUBTYPE_SH7722
  382. bool "Support SH7722 processor"
  383. select CPU_SH4AL_DSP
  384. select CPU_SHX2
  385. select ARCH_SHMOBILE
  386. select ARCH_SPARSEMEM_ENABLE
  387. select SYS_SUPPORTS_NUMA
  388. select SYS_SUPPORTS_CMT
  389. select ARCH_WANT_OPTIONAL_GPIOLIB
  390. config CPU_SUBTYPE_SH7366
  391. bool "Support SH7366 processor"
  392. select CPU_SH4AL_DSP
  393. select CPU_SHX2
  394. select ARCH_SHMOBILE
  395. select ARCH_SPARSEMEM_ENABLE
  396. select SYS_SUPPORTS_NUMA
  397. select SYS_SUPPORTS_CMT
  398. endchoice
  399. endif
  400. if SUPERH64
  401. choice
  402. prompt "Processor sub-type selection"
  403. # SH-5 Processor Support
  404. config CPU_SUBTYPE_SH5_101
  405. bool "Support SH5-101 processor"
  406. select CPU_SH5
  407. config CPU_SUBTYPE_SH5_103
  408. bool "Support SH5-103 processor"
  409. select CPU_SH5
  410. endchoice
  411. endif
  412. source "arch/sh/mm/Kconfig"
  413. source "arch/sh/Kconfig.cpu"
  414. source "arch/sh/boards/Kconfig"
  415. menu "Timer and clock configuration"
  416. config SH_TIMER_TMU
  417. bool "TMU timer driver"
  418. depends on SYS_SUPPORTS_TMU
  419. default y
  420. help
  421. This enables the build of the TMU timer driver.
  422. config SH_TIMER_CMT
  423. bool "CMT timer driver"
  424. depends on SYS_SUPPORTS_CMT
  425. default y
  426. help
  427. This enables build of the CMT timer driver.
  428. config SH_TIMER_MTU2
  429. bool "MTU2 timer driver"
  430. depends on SYS_SUPPORTS_MTU2
  431. default y
  432. help
  433. This enables build of the MTU2 timer driver.
  434. config SH_PCLK_FREQ
  435. int "Peripheral clock frequency (in Hz)"
  436. depends on SH_CLK_CPG_LEGACY
  437. default "31250000" if CPU_SUBTYPE_SH7619
  438. default "33333333" if CPU_SUBTYPE_SH7770 || \
  439. CPU_SUBTYPE_SH7760 || \
  440. CPU_SUBTYPE_SH7705 || \
  441. CPU_SUBTYPE_SH7203 || \
  442. CPU_SUBTYPE_SH7206 || \
  443. CPU_SUBTYPE_SH7263 || \
  444. CPU_SUBTYPE_MXG
  445. default "60000000" if CPU_SUBTYPE_SH7751 || CPU_SUBTYPE_SH7751R
  446. default "66000000" if CPU_SUBTYPE_SH4_202
  447. default "50000000"
  448. help
  449. This option is used to specify the peripheral clock frequency.
  450. This is necessary for determining the reference clock value on
  451. platforms lacking an RTC.
  452. config SH_CLK_CPG
  453. def_bool y
  454. config SH_CLK_CPG_LEGACY
  455. depends on SH_CLK_CPG
  456. def_bool y if !CPU_SUBTYPE_SH7785 && !ARCH_SHMOBILE && \
  457. !CPU_SHX3 && !CPU_SUBTYPE_SH7757
  458. source "kernel/time/Kconfig"
  459. endmenu
  460. menu "CPU Frequency scaling"
  461. source "drivers/cpufreq/Kconfig"
  462. config SH_CPU_FREQ
  463. tristate "SuperH CPU Frequency driver"
  464. depends on CPU_FREQ
  465. select CPU_FREQ_TABLE
  466. help
  467. This adds the cpufreq driver for SuperH. Any CPU that supports
  468. clock rate rounding through the clock framework can use this
  469. driver. While it will make the kernel slightly larger, this is
  470. harmless for CPUs that don't support rate rounding. The driver
  471. will also generate a notice in the boot log before disabling
  472. itself if the CPU in question is not capable of rate rounding.
  473. For details, take a look at <file:Documentation/cpu-freq>.
  474. If unsure, say N.
  475. endmenu
  476. source "arch/sh/drivers/Kconfig"
  477. endmenu
  478. menu "Kernel features"
  479. source kernel/Kconfig.hz
  480. config KEXEC
  481. bool "kexec system call (EXPERIMENTAL)"
  482. depends on SUPERH32 && EXPERIMENTAL && MMU
  483. help
  484. kexec is a system call that implements the ability to shutdown your
  485. current kernel, and to start another kernel. It is like a reboot
  486. but it is independent of the system firmware. And like a reboot
  487. you can start any kernel with it, not just Linux.
  488. The name comes from the similarity to the exec system call.
  489. It is an ongoing process to be certain the hardware in a machine
  490. is properly shutdown, so do not be surprised if this code does not
  491. initially work for you. It may help to enable device hotplugging
  492. support. As of this writing the exact hardware interface is
  493. strongly in flux, so no good recommendation can be made.
  494. config CRASH_DUMP
  495. bool "kernel crash dumps (EXPERIMENTAL)"
  496. depends on SUPERH32 && EXPERIMENTAL && BROKEN_ON_SMP
  497. help
  498. Generate crash dump after being started by kexec.
  499. This should be normally only set in special crash dump kernels
  500. which are loaded in the main kernel with kexec-tools into
  501. a specially reserved region and then later executed after
  502. a crash by kdump/kexec. The crash dump kernel must be compiled
  503. to a memory address not used by the main kernel using
  504. MEMORY_START.
  505. For more details see Documentation/kdump/kdump.txt
  506. config KEXEC_JUMP
  507. bool "kexec jump (EXPERIMENTAL)"
  508. depends on SUPERH32 && KEXEC && HIBERNATION && EXPERIMENTAL
  509. help
  510. Jump between original kernel and kexeced kernel and invoke
  511. code via KEXEC
  512. config SECCOMP
  513. bool "Enable seccomp to safely compute untrusted bytecode"
  514. depends on PROC_FS
  515. help
  516. This kernel feature is useful for number crunching applications
  517. that may need to compute untrusted bytecode during their
  518. execution. By using pipes or other transports made available to
  519. the process as file descriptors supporting the read/write
  520. syscalls, it's possible to isolate those applications in
  521. their own address space using seccomp. Once seccomp is
  522. enabled via prctl, it cannot be disabled and the task is only
  523. allowed to execute a few safe syscalls defined by each seccomp
  524. mode.
  525. If unsure, say N.
  526. config SMP
  527. bool "Symmetric multi-processing support"
  528. depends on SYS_SUPPORTS_SMP
  529. select USE_GENERIC_SMP_HELPERS
  530. ---help---
  531. This enables support for systems with more than one CPU. If you have
  532. a system with only one CPU, like most personal computers, say N. If
  533. you have a system with more than one CPU, say Y.
  534. If you say N here, the kernel will run on single and multiprocessor
  535. machines, but will use only one CPU of a multiprocessor machine. If
  536. you say Y here, the kernel will run on many, but not all,
  537. singleprocessor machines. On a singleprocessor machine, the kernel
  538. will run faster if you say N here.
  539. People using multiprocessor machines who say Y here should also say
  540. Y to "Enhanced Real Time Clock Support", below.
  541. See also <file:Documentation/nmi_watchdog.txt> and the SMP-HOWTO
  542. available at <http://www.tldp.org/docs.html#howto>.
  543. If you don't know what to do here, say N.
  544. config NR_CPUS
  545. int "Maximum number of CPUs (2-32)"
  546. range 2 32
  547. depends on SMP
  548. default "4" if CPU_SUBTYPE_SHX3
  549. default "2"
  550. help
  551. This allows you to specify the maximum number of CPUs which this
  552. kernel will support. The maximum supported value is 32 and the
  553. minimum value which makes sense is 2.
  554. This is purely to save memory - each supported CPU adds
  555. approximately eight kilobytes to the kernel image.
  556. config HOTPLUG_CPU
  557. bool "Support for hot-pluggable CPUs (EXPERIMENTAL)"
  558. depends on SMP && HOTPLUG && EXPERIMENTAL
  559. help
  560. Say Y here to experiment with turning CPUs off and on. CPUs
  561. can be controlled through /sys/devices/system/cpu.
  562. source "kernel/Kconfig.preempt"
  563. config GUSA
  564. def_bool y
  565. depends on !SMP && SUPERH32
  566. help
  567. This enables support for gUSA (general UserSpace Atomicity).
  568. This is the default implementation for both UP and non-ll/sc
  569. CPUs, and is used by the libc, amongst others.
  570. For additional information, design information can be found
  571. in <http://lc.linux.or.jp/lc2002/papers/niibe0919p.pdf>.
  572. This should only be disabled for special cases where alternate
  573. atomicity implementations exist.
  574. config GUSA_RB
  575. bool "Implement atomic operations by roll-back (gRB) (EXPERIMENTAL)"
  576. depends on GUSA && CPU_SH3 || (CPU_SH4 && !CPU_SH4A)
  577. help
  578. Enabling this option will allow the kernel to implement some
  579. atomic operations using a software implementation of load-locked/
  580. store-conditional (LLSC). On machines which do not have hardware
  581. LLSC, this should be more efficient than the other alternative of
  582. disabling interrupts around the atomic sequence.
  583. config HW_PERF_EVENTS
  584. bool "Enable hardware performance counter support for perf events"
  585. depends on PERF_EVENTS && CPU_HAS_PMU
  586. default y
  587. help
  588. Enable hardware performance counter support for perf events. If
  589. disabled, perf events will use software events only.
  590. source "drivers/sh/Kconfig"
  591. endmenu
  592. menu "Boot options"
  593. config ZERO_PAGE_OFFSET
  594. hex
  595. default "0x00010000" if PAGE_SIZE_64KB || SH_RTS7751R2D || \
  596. SH_7751_SOLUTION_ENGINE
  597. default "0x00004000" if PAGE_SIZE_16KB || SH_SH03
  598. default "0x00002000" if PAGE_SIZE_8KB
  599. default "0x00001000"
  600. help
  601. This sets the default offset of zero page.
  602. config BOOT_LINK_OFFSET
  603. hex
  604. default "0x00210000" if SH_SHMIN
  605. default "0x00400000" if SH_CAYMAN
  606. default "0x00810000" if SH_7780_SOLUTION_ENGINE
  607. default "0x009e0000" if SH_TITAN
  608. default "0x01800000" if SH_SDK7780
  609. default "0x02000000" if SH_EDOSK7760
  610. default "0x00800000"
  611. help
  612. This option allows you to set the link address offset of the zImage.
  613. This can be useful if you are on a board which has a small amount of
  614. memory.
  615. config ENTRY_OFFSET
  616. hex
  617. default "0x00001000" if PAGE_SIZE_4KB
  618. default "0x00002000" if PAGE_SIZE_8KB
  619. default "0x00004000" if PAGE_SIZE_16KB
  620. default "0x00010000" if PAGE_SIZE_64KB
  621. default "0x00000000"
  622. config ROMIMAGE_MMCIF
  623. bool "Include MMCIF loader in romImage (EXPERIMENTAL)"
  624. depends on CPU_SUBTYPE_SH7724 && EXPERIMENTAL
  625. help
  626. Say Y here to include experimental MMCIF loading code in
  627. romImage. With this enabled it is possible to write the romImage
  628. kernel image to an MMC card and boot the kernel straight from
  629. the reset vector. At reset the processor Mask ROM will load the
  630. first part of the romImage which in turn loads the rest the kernel
  631. image to RAM using the MMCIF hardware block.
  632. choice
  633. prompt "Kernel command line"
  634. optional
  635. default CMDLINE_OVERWRITE
  636. help
  637. Setting this option allows the kernel command line arguments
  638. to be set.
  639. config CMDLINE_OVERWRITE
  640. bool "Overwrite bootloader kernel arguments"
  641. help
  642. Given string will overwrite any arguments passed in by
  643. a bootloader.
  644. config CMDLINE_EXTEND
  645. bool "Extend bootloader kernel arguments"
  646. help
  647. Given string will be concatenated with arguments passed in
  648. by a bootloader.
  649. endchoice
  650. config CMDLINE
  651. string "Kernel command line arguments string"
  652. depends on CMDLINE_OVERWRITE || CMDLINE_EXTEND
  653. default "console=ttySC1,115200"
  654. endmenu
  655. menu "Bus options"
  656. config SUPERHYWAY
  657. tristate "SuperHyway Bus support"
  658. depends on CPU_SUBTYPE_SH4_202
  659. config MAPLE
  660. bool "Maple Bus support"
  661. depends on SH_DREAMCAST
  662. help
  663. The Maple Bus is SEGA's serial communication bus for peripherals
  664. on the Dreamcast. Without this bus support you won't be able to
  665. get your Dreamcast keyboard etc to work, so most users
  666. probably want to say 'Y' here, unless you are only using the
  667. Dreamcast with a serial line terminal or a remote network
  668. connection.
  669. config PCI
  670. bool "PCI support"
  671. depends on SYS_SUPPORTS_PCI
  672. select PCI_DOMAINS
  673. help
  674. Find out whether you have a PCI motherboard. PCI is the name of a
  675. bus system, i.e. the way the CPU talks to the other stuff inside
  676. your box. If you have PCI, say Y, otherwise N.
  677. config PCI_DOMAINS
  678. bool
  679. source "drivers/pci/pcie/Kconfig"
  680. source "drivers/pci/Kconfig"
  681. source "drivers/pcmcia/Kconfig"
  682. source "drivers/pci/hotplug/Kconfig"
  683. endmenu
  684. menu "Executable file formats"
  685. source "fs/Kconfig.binfmt"
  686. endmenu
  687. menu "Power management options (EXPERIMENTAL)"
  688. depends on EXPERIMENTAL
  689. source "kernel/power/Kconfig"
  690. source "drivers/cpuidle/Kconfig"
  691. endmenu
  692. source "net/Kconfig"
  693. source "drivers/Kconfig"
  694. source "fs/Kconfig"
  695. source "arch/sh/Kconfig.debug"
  696. source "security/Kconfig"
  697. source "crypto/Kconfig"
  698. menuconfig VIRTUALIZATION
  699. bool "Virtualization"
  700. default n
  701. ---help---
  702. Say Y here to get to see options for using your Linux host to run other
  703. operating systems inside virtual machines (guests).
  704. This option alone does not add any kernel code.
  705. If you say N, all options in this submenu will be skipped and disabled.
  706. if VIRTUALIZATION
  707. source drivers/virtio/Kconfig
  708. endif # VIRTUALIZATION
  709. source "lib/Kconfig"