Arnd Bergmann | a0ae9c7 | 2007-06-13 02:30:17 +1000 | [diff] [blame] | 1 | source "arch/powerpc/platforms/Kconfig.cputype" |
Johannes Berg | 17e638b | 2007-03-19 11:53:53 +0100 | [diff] [blame] | 2 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 3 | config PPC32 |
| 4 | bool |
| 5 | default y if !PPC64 |
| 6 | |
kerstin jonsson | 234a71a | 2010-10-22 00:17:55 +0000 | [diff] [blame] | 7 | config 32BIT |
| 8 | bool |
| 9 | default y if PPC32 |
| 10 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 11 | config 64BIT |
| 12 | bool |
| 13 | default y if PPC64 |
| 14 | |
Stephen Rothwell | 2578bfa | 2007-09-21 10:16:20 +1000 | [diff] [blame] | 15 | config WORD_SIZE |
| 16 | int |
| 17 | default 64 if PPC64 |
| 18 | default 32 if !PPC64 |
| 19 | |
Jeremy Fitzhardinge | 600715d | 2008-09-11 01:31:45 -0700 | [diff] [blame] | 20 | config ARCH_PHYS_ADDR_T_64BIT |
| 21 | def_bool PPC64 || PHYS_64BIT |
| 22 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 23 | config MMU |
| 24 | bool |
| 25 | default y |
| 26 | |
Tony Breeds | aa3be5f | 2007-09-21 13:26:02 +1000 | [diff] [blame] | 27 | config GENERIC_CMOS_UPDATE |
| 28 | def_bool y |
| 29 | |
Tony Breeds | 4a4cfe3 | 2007-09-22 07:35:52 +1000 | [diff] [blame] | 30 | config GENERIC_TIME_VSYSCALL |
| 31 | def_bool y |
| 32 | |
Tony Breeds | d831d0b | 2007-09-21 13:26:03 +1000 | [diff] [blame] | 33 | config GENERIC_CLOCKEVENTS |
| 34 | def_bool y |
| 35 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 36 | config GENERIC_HARDIRQS |
| 37 | bool |
| 38 | default y |
| 39 | |
Michael Ellerman | 8e27f4d | 2009-04-22 15:31:45 +0000 | [diff] [blame] | 40 | config GENERIC_HARDIRQS_NO__DO_IRQ |
| 41 | bool |
| 42 | default y |
| 43 | |
Tejun Heo | c2a7e81 | 2009-08-14 15:00:53 +0900 | [diff] [blame] | 44 | config HAVE_SETUP_PER_CPU_AREA |
Tejun Heo | e74e396 | 2009-03-30 19:07:44 +0900 | [diff] [blame] | 45 | def_bool PPC64 |
| 46 | |
Tejun Heo | c2a7e81 | 2009-08-14 15:00:53 +0900 | [diff] [blame] | 47 | config NEED_PER_CPU_EMBED_FIRST_CHUNK |
travis@sgi.com | b32ef63 | 2008-01-30 13:32:51 +0100 | [diff] [blame] | 48 | def_bool PPC64 |
| 49 | |
Ingo Molnar | 0d7012a | 2006-06-29 02:24:43 -0700 | [diff] [blame] | 50 | config IRQ_PER_CPU |
| 51 | bool |
| 52 | default y |
| 53 | |
Michael Ellerman | 551b81f | 2009-10-13 19:44:44 +0000 | [diff] [blame] | 54 | config NR_IRQS |
| 55 | int "Number of virtual interrupt numbers" |
Anton Blanchard | 859aefc | 2010-01-31 01:14:03 +0000 | [diff] [blame] | 56 | range 32 32768 |
Michael Ellerman | 551b81f | 2009-10-13 19:44:44 +0000 | [diff] [blame] | 57 | default "512" |
| 58 | help |
| 59 | This defines the number of virtual interrupt numbers the kernel |
| 60 | can manage. Virtual interrupt numbers are what you see in |
| 61 | /proc/interrupts. If you configure your system to have too few, |
| 62 | drivers will fail to load or worse - handle with care. |
| 63 | |
Christoph Hellwig | fd3e0bb | 2008-04-17 14:35:00 +1000 | [diff] [blame] | 64 | config STACKTRACE_SUPPORT |
| 65 | bool |
| 66 | default y |
| 67 | |
Arnd Bergmann | 01f4b8b | 2008-07-11 00:08:18 +1000 | [diff] [blame] | 68 | config HAVE_LATENCYTOP_SUPPORT |
| 69 | def_bool y |
| 70 | |
Benjamin Herrenschmidt | 945feb1 | 2008-04-17 14:35:01 +1000 | [diff] [blame] | 71 | config TRACE_IRQFLAGS_SUPPORT |
| 72 | bool |
Benjamin Herrenschmidt | 945feb1 | 2008-04-17 14:35:01 +1000 | [diff] [blame] | 73 | default y |
| 74 | |
| 75 | config LOCKDEP_SUPPORT |
| 76 | bool |
| 77 | default y |
| 78 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 79 | config RWSEM_GENERIC_SPINLOCK |
| 80 | bool |
| 81 | |
| 82 | config RWSEM_XCHGADD_ALGORITHM |
| 83 | bool |
| 84 | default y |
| 85 | |
Nick Piggin | 95c354f | 2008-01-30 13:31:20 +0100 | [diff] [blame] | 86 | config GENERIC_LOCKBREAK |
| 87 | bool |
| 88 | default y |
| 89 | depends on SMP && PREEMPT |
| 90 | |
David Howells | f0d1b0b | 2006-12-08 02:37:49 -0800 | [diff] [blame] | 91 | config ARCH_HAS_ILOG2_U32 |
| 92 | bool |
David Howells | ef55d53 | 2006-12-08 02:37:53 -0800 | [diff] [blame] | 93 | default y |
David Howells | f0d1b0b | 2006-12-08 02:37:49 -0800 | [diff] [blame] | 94 | |
| 95 | config ARCH_HAS_ILOG2_U64 |
| 96 | bool |
David Howells | ef55d53 | 2006-12-08 02:37:53 -0800 | [diff] [blame] | 97 | default y if 64BIT |
David Howells | f0d1b0b | 2006-12-08 02:37:49 -0800 | [diff] [blame] | 98 | |
Akinobu Mita | e779b2f | 2006-03-26 01:39:33 -0800 | [diff] [blame] | 99 | config GENERIC_HWEIGHT |
| 100 | bool |
| 101 | default y |
| 102 | |
Jon Mason | 0a9cb46 | 2006-05-19 15:35:32 -0500 | [diff] [blame] | 103 | config GENERIC_FIND_NEXT_BIT |
| 104 | bool |
| 105 | default y |
| 106 | |
Anton Vorontsov | b7ce341 | 2008-04-11 23:06:36 +1000 | [diff] [blame] | 107 | config GENERIC_GPIO |
| 108 | bool |
| 109 | help |
| 110 | Generic GPIO API support |
| 111 | |
Stephen Rothwell | f057eac | 2007-07-15 23:40:05 -0700 | [diff] [blame] | 112 | config ARCH_NO_VIRT_TO_BUS |
| 113 | def_bool PPC64 |
| 114 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 115 | config PPC |
| 116 | bool |
| 117 | default y |
Stephen Rothwell | 10f85f4 | 2010-06-29 12:43:34 +1000 | [diff] [blame] | 118 | select OF |
| 119 | select OF_FLATTREE |
Steven Rostedt | 2b79d69 | 2009-01-06 18:49:17 +0000 | [diff] [blame] | 120 | select HAVE_FTRACE_MCOUNT_RECORD |
| 121 | select HAVE_DYNAMIC_FTRACE |
Steven Rostedt | 606576c | 2008-10-06 19:06:12 -0400 | [diff] [blame] | 122 | select HAVE_FUNCTION_TRACER |
Steven Rostedt | 60ce8f7 | 2009-02-11 20:06:43 -0500 | [diff] [blame] | 123 | select HAVE_FUNCTION_GRAPH_TRACER |
Michael Buesch | 7444a72 | 2008-07-25 01:46:11 -0700 | [diff] [blame] | 124 | select ARCH_WANT_OPTIONAL_GPIOLIB |
Sam Ravnborg | ec7748b | 2008-02-09 10:46:40 +0100 | [diff] [blame] | 125 | select HAVE_IDE |
Benjamin Herrenschmidt | a1f242f | 2008-07-23 21:27:08 -0700 | [diff] [blame] | 126 | select HAVE_IOREMAP_PROT |
Johannes Berg | 58340a0 | 2008-07-25 01:45:33 -0700 | [diff] [blame] | 127 | select HAVE_EFFICIENT_UNALIGNED_ACCESS |
Mathieu Desnoyers | 3f55009 | 2008-02-02 15:10:35 -0500 | [diff] [blame] | 128 | select HAVE_KPROBES |
Jason Wessel | 17ce452 | 2008-07-23 11:30:15 -0500 | [diff] [blame] | 129 | select HAVE_ARCH_KGDB |
Ananth N Mavinakayanahalli | 9edddaa | 2008-03-04 14:28:37 -0800 | [diff] [blame] | 130 | select HAVE_KRETPROBES |
Roland McGrath | dec2b0d | 2008-07-27 16:53:20 +1000 | [diff] [blame] | 131 | select HAVE_ARCH_TRACEHOOK |
Yinghai Lu | 95f72d1 | 2010-07-12 14:36:09 +1000 | [diff] [blame] | 132 | select HAVE_MEMBLOCK |
FUJITA Tomonori | 46bab4e | 2009-08-04 19:08:26 +0000 | [diff] [blame] | 133 | select HAVE_DMA_ATTRS |
FUJITA Tomonori | 80d3e8a | 2009-08-04 19:08:28 +0000 | [diff] [blame] | 134 | select HAVE_DMA_API_DEBUG |
Jens Axboe | b7d7a24 | 2008-06-26 11:22:13 +0200 | [diff] [blame] | 135 | select USE_GENERIC_SMP_HELPERS if SMP |
Steven Rostedt | 4e491d1 | 2008-05-14 23:49:44 -0400 | [diff] [blame] | 136 | select HAVE_OPROFILE |
Benjamin Herrenschmidt | ee6a093 | 2009-01-14 14:14:00 +0100 | [diff] [blame] | 137 | select HAVE_SYSCALL_WRAPPERS if PPC64 |
Paul Mackerras | c2e95c6 | 2009-06-12 21:10:41 +0000 | [diff] [blame] | 138 | select GENERIC_ATOMIC64 if PPC32 |
Peter Zijlstra | e360adb | 2010-10-14 14:01:34 +0800 | [diff] [blame] | 139 | select HAVE_IRQ_WORK |
Ingo Molnar | cdd6c48 | 2009-09-21 12:02:48 +0200 | [diff] [blame] | 140 | select HAVE_PERF_EVENTS |
Mahesh Salgaonkar | 359e428 | 2010-04-07 18:10:20 +1000 | [diff] [blame] | 141 | select HAVE_REGS_AND_STACK_ACCESS_API |
K.Prasad | 5aae8a5 | 2010-06-15 11:35:19 +0530 | [diff] [blame] | 142 | select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64 |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 143 | |
| 144 | config EARLY_PRINTK |
| 145 | bool |
Benjamin Herrenschmidt | 51d3082 | 2005-11-23 17:57:25 +1100 | [diff] [blame] | 146 | default y |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 147 | |
| 148 | config COMPAT |
| 149 | bool |
| 150 | default y if PPC64 |
Roland McGrath | 01e31db | 2008-01-02 17:03:11 -0800 | [diff] [blame] | 151 | select COMPAT_BINFMT_ELF |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 152 | |
| 153 | config SYSVIPC_COMPAT |
| 154 | bool |
| 155 | depends on COMPAT && SYSVIPC |
| 156 | default y |
| 157 | |
| 158 | # All PPC32s use generic nvram driver through ppc_md |
| 159 | config GENERIC_NVRAM |
| 160 | bool |
| 161 | default y if PPC32 |
| 162 | |
Ingo Molnar | ae1e913 | 2008-11-11 09:05:16 +0100 | [diff] [blame] | 163 | config SCHED_OMIT_FRAME_POINTER |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 164 | bool |
| 165 | default y |
| 166 | |
| 167 | config ARCH_MAY_HAVE_PC_FDC |
| 168 | bool |
Stephen Rothwell | bed5927 | 2007-03-04 17:04:44 +1100 | [diff] [blame] | 169 | default !PPC_PSERIES || PCI |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 170 | |
Kumar Gala | 08264cb | 2006-01-10 21:43:56 -0600 | [diff] [blame] | 171 | config PPC_OF |
| 172 | def_bool y |
| 173 | |
| 174 | config PPC_UDBG_16550 |
| 175 | bool |
| 176 | default n |
| 177 | |
Kumar Gala | 08264cb | 2006-01-10 21:43:56 -0600 | [diff] [blame] | 178 | config GENERIC_TBSYNC |
| 179 | bool |
| 180 | default y if PPC32 && SMP |
| 181 | default n |
| 182 | |
Al Viro | e65e1fc | 2006-09-12 03:04:40 -0400 | [diff] [blame] | 183 | config AUDIT_ARCH |
| 184 | bool |
| 185 | default y |
| 186 | |
Jeremy Fitzhardinge | 73c9cea | 2006-12-08 03:30:41 -0800 | [diff] [blame] | 187 | config GENERIC_BUG |
| 188 | bool |
| 189 | default y |
| 190 | depends on BUG |
| 191 | |
Johannes Berg | b302887 | 2007-03-20 05:18:02 +1100 | [diff] [blame] | 192 | config SYS_SUPPORTS_APM_EMULATION |
Kumar Gala | 58da10b | 2007-05-23 09:51:46 -0500 | [diff] [blame] | 193 | default y if PMAC_APM_EMU |
Johannes Berg | b302887 | 2007-03-20 05:18:02 +1100 | [diff] [blame] | 194 | bool |
| 195 | |
Kumar Gala | f4fc4a5 | 2006-01-16 10:53:22 -0600 | [diff] [blame] | 196 | config DEFAULT_UIMAGE |
| 197 | bool |
| 198 | help |
| 199 | Used to allow a board to specify it wants a uImage built by default |
| 200 | default n |
| 201 | |
Scott Wood | b09c164 | 2008-01-17 16:31:40 -0600 | [diff] [blame] | 202 | config REDBOOT |
| 203 | bool |
| 204 | |
Johannes Berg | 801e406 | 2007-12-08 02:12:39 +0100 | [diff] [blame] | 205 | config ARCH_HIBERNATION_POSSIBLE |
| 206 | bool |
Johannes Berg | 543b9fd | 2007-05-03 22:31:38 +1000 | [diff] [blame] | 207 | default y |
| 208 | |
Johannes Berg | f4cb570 | 2007-12-08 02:14:00 +0100 | [diff] [blame] | 209 | config ARCH_SUSPEND_POSSIBLE |
| 210 | def_bool y |
Anton Vorontsov | 4ffd695 | 2009-09-16 01:43:57 +0400 | [diff] [blame] | 211 | depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \ |
Brian King | 32d8ad4 | 2010-07-07 12:31:02 +0000 | [diff] [blame] | 212 | PPC_85xx || PPC_86xx || PPC_PSERIES |
Johannes Berg | f4cb570 | 2007-12-08 02:14:00 +0100 | [diff] [blame] | 213 | |
Benjamin Herrenschmidt | 4c75a6f | 2006-11-11 17:24:53 +1100 | [diff] [blame] | 214 | config PPC_DCR_NATIVE |
| 215 | bool |
| 216 | default n |
| 217 | |
| 218 | config PPC_DCR_MMIO |
| 219 | bool |
| 220 | default n |
| 221 | |
| 222 | config PPC_DCR |
| 223 | bool |
| 224 | depends on PPC_DCR_NATIVE || PPC_DCR_MMIO |
| 225 | default y |
| 226 | |
Benjamin Herrenschmidt | 4c9d280 | 2006-11-11 17:25:08 +1100 | [diff] [blame] | 227 | config PPC_OF_PLATFORM_PCI |
| 228 | bool |
Stephen Rothwell | 373a6da | 2007-12-21 15:37:07 +1100 | [diff] [blame] | 229 | depends on PCI |
Benjamin Herrenschmidt | 4c9d280 | 2006-11-11 17:25:08 +1100 | [diff] [blame] | 230 | depends on PPC64 # not supported on 32 bits yet |
| 231 | default n |
| 232 | |
Akinobu Mita | 6a11f75 | 2009-03-31 15:23:17 -0700 | [diff] [blame] | 233 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
| 234 | def_bool y |
| 235 | |
Dave Kleikamp | 172ae2e | 2010-02-08 11:50:57 +0000 | [diff] [blame] | 236 | config PPC_ADV_DEBUG_REGS |
| 237 | bool |
| 238 | depends on 40x || BOOKE |
| 239 | default y |
| 240 | |
| 241 | config PPC_ADV_DEBUG_IACS |
| 242 | int |
| 243 | depends on PPC_ADV_DEBUG_REGS |
| 244 | default 4 if 44x |
| 245 | default 2 |
| 246 | |
| 247 | config PPC_ADV_DEBUG_DACS |
| 248 | int |
| 249 | depends on PPC_ADV_DEBUG_REGS |
| 250 | default 2 |
| 251 | |
| 252 | config PPC_ADV_DEBUG_DVCS |
| 253 | int |
| 254 | depends on PPC_ADV_DEBUG_REGS |
| 255 | default 2 if 44x |
| 256 | default 0 |
| 257 | |
| 258 | config PPC_ADV_DEBUG_DAC_RANGE |
| 259 | bool |
| 260 | depends on PPC_ADV_DEBUG_REGS && 44x |
| 261 | default y |
| 262 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 263 | source "init/Kconfig" |
| 264 | |
Matt Helsley | dc52ddc | 2008-10-18 20:27:21 -0700 | [diff] [blame] | 265 | source "kernel/Kconfig.freezer" |
| 266 | |
Benjamin Herrenschmidt | a2d2e1e | 2007-12-21 15:39:24 +1100 | [diff] [blame] | 267 | source "arch/powerpc/sysdev/Kconfig" |
Kumar Gala | 4330f5d | 2007-03-16 09:32:17 -0500 | [diff] [blame] | 268 | source "arch/powerpc/platforms/Kconfig" |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 269 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 270 | menu "Kernel options" |
| 271 | |
| 272 | config HIGHMEM |
| 273 | bool "High memory support" |
| 274 | depends on PPC32 |
| 275 | |
Tony Breeds | 1ad7499 | 2007-09-21 13:26:03 +1000 | [diff] [blame] | 276 | source kernel/time/Kconfig |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 277 | source kernel/Kconfig.hz |
| 278 | source kernel/Kconfig.preempt |
| 279 | source "fs/Kconfig.binfmt" |
| 280 | |
Mel Gorman | ba72cb8 | 2007-11-28 16:21:13 -0800 | [diff] [blame] | 281 | config HUGETLB_PAGE_SIZE_VARIABLE |
| 282 | bool |
| 283 | depends on HUGETLB_PAGE |
| 284 | default y |
| 285 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 286 | config MATH_EMULATION |
| 287 | bool "Math emulation" |
Kumar Gala | 4d52719 | 2007-01-26 00:23:34 -0600 | [diff] [blame] | 288 | depends on 4xx || 8xx || E200 || PPC_MPC832x || E500 |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 289 | ---help--- |
| 290 | Some PowerPC chips designed for embedded applications do not have |
| 291 | a floating-point unit and therefore do not implement the |
| 292 | floating-point instructions in the PowerPC instruction set. If you |
| 293 | say Y here, the kernel will include code to emulate a floating-point |
| 294 | unit, which will allow programs that use floating-point |
| 295 | instructions to run. |
| 296 | |
Scott Wood | 5dd57a1 | 2007-09-18 15:29:35 -0500 | [diff] [blame] | 297 | config 8XX_MINIMAL_FPEMU |
| 298 | bool "Minimal math emulation for 8xx" |
| 299 | depends on 8xx && !MATH_EMULATION |
| 300 | help |
| 301 | Older arch/ppc kernels still emulated a few floating point |
| 302 | instructions such as load and store, even when full math |
| 303 | emulation is disabled. Say "Y" here if you want to preserve |
| 304 | this behavior. |
| 305 | |
| 306 | It is recommended that you build a soft-float userspace instead. |
| 307 | |
FUJITA Tomonori | fb3475e | 2008-02-04 22:28:08 -0800 | [diff] [blame] | 308 | config IOMMU_HELPER |
| 309 | def_bool PPC64 |
| 310 | |
Becky Bruce | ec3cf2e | 2009-05-14 12:42:28 +0000 | [diff] [blame] | 311 | config SWIOTLB |
| 312 | bool "SWIOTLB support" |
| 313 | default n |
| 314 | select IOMMU_HELPER |
| 315 | ---help--- |
| 316 | Support for IO bounce buffering for systems without an IOMMU. |
| 317 | This allows us to DMA to the full physical address space on |
| 318 | platforms where the size of a physical address is larger |
| 319 | than the bus address. Not all platforms support this. |
| 320 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 321 | config HOTPLUG_CPU |
| 322 | bool "Support for enabling/disabling CPUs" |
| 323 | depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC) |
| 324 | ---help--- |
| 325 | Say Y here to be able to disable and re-enable individual |
| 326 | CPUs at runtime on SMP machines. |
| 327 | |
| 328 | Say N if you are unsure. |
| 329 | |
Nathan Fontenot | 12633e8 | 2009-11-25 17:23:25 +0000 | [diff] [blame] | 330 | config ARCH_CPU_PROBE_RELEASE |
| 331 | def_bool y |
| 332 | depends on HOTPLUG_CPU |
| 333 | |
Yasunori Goto | cc57637 | 2006-06-29 02:24:27 -0700 | [diff] [blame] | 334 | config ARCH_ENABLE_MEMORY_HOTPLUG |
| 335 | def_bool y |
| 336 | |
Badari Pulavarty | a99824f | 2008-02-05 00:10:18 -0800 | [diff] [blame] | 337 | config ARCH_HAS_WALK_MEMORY |
| 338 | def_bool y |
| 339 | |
Badari Pulavarty | 1482471 | 2008-02-05 00:10:17 -0800 | [diff] [blame] | 340 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
| 341 | def_bool y |
| 342 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 343 | config KEXEC |
| 344 | bool "kexec system call (EXPERIMENTAL)" |
Matthew McClintock | f933a41 | 2010-07-21 16:14:53 -0500 | [diff] [blame] | 345 | depends on (PPC_BOOK3S || FSL_BOOKE) && EXPERIMENTAL |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 346 | help |
| 347 | kexec is a system call that implements the ability to shutdown your |
| 348 | current kernel, and to start another kernel. It is like a reboot |
Matt LaPlante | 1f1332f | 2006-06-29 01:32:47 -0400 | [diff] [blame] | 349 | but it is independent of the system firmware. And like a reboot |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 350 | you can start any kernel with it, not just Linux. |
| 351 | |
Matt LaPlante | 1f1332f | 2006-06-29 01:32:47 -0400 | [diff] [blame] | 352 | The name comes from the similarity to the exec system call. |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 353 | |
| 354 | It is an ongoing process to be certain the hardware in a machine |
| 355 | is properly shutdown, so do not be surprised if this code does not |
| 356 | initially work for you. It may help to enable device hotplugging |
| 357 | support. As of this writing the exact hardware interface is |
| 358 | strongly in flux, so no good recommendation can be made. |
| 359 | |
Haren Myneni | e8625d46 | 2006-01-14 13:48:25 -0800 | [diff] [blame] | 360 | config CRASH_DUMP |
Bernhard Walle | 3420b5da | 2008-06-27 03:02:15 +1000 | [diff] [blame] | 361 | bool "Build a kdump crash kernel" |
Matthew McClintock | f933a41 | 2010-07-21 16:14:53 -0500 | [diff] [blame] | 362 | depends on PPC64 || 6xx || FSL_BOOKE |
| 363 | select RELOCATABLE if PPC64 || FSL_BOOKE |
Haren Myneni | e8625d46 | 2006-01-14 13:48:25 -0800 | [diff] [blame] | 364 | help |
| 365 | Build a kernel suitable for use as a kdump capture kernel. |
Mohan Kumar M | 54622f1 | 2008-10-21 17:38:10 +0000 | [diff] [blame] | 366 | The same kernel binary can be used as production kernel and dump |
| 367 | capture kernel. |
Haren Myneni | e8625d46 | 2006-01-14 13:48:25 -0800 | [diff] [blame] | 368 | |
Manish Ahuja | 242f271 | 2008-03-22 10:50:50 +1100 | [diff] [blame] | 369 | config PHYP_DUMP |
| 370 | bool "Hypervisor-assisted dump (EXPERIMENTAL)" |
| 371 | depends on PPC_PSERIES && EXPERIMENTAL |
| 372 | help |
| 373 | Hypervisor-assisted dump is meant to be a kdump replacement |
| 374 | offering robustness and speed not possible without system |
Matt LaPlante | 692105b | 2009-01-26 11:12:25 +0100 | [diff] [blame] | 375 | hypervisor assistance. |
Manish Ahuja | 242f271 | 2008-03-22 10:50:50 +1100 | [diff] [blame] | 376 | |
| 377 | If unsure, say "N" |
| 378 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 379 | config PPCBUG_NVRAM |
| 380 | bool "Enable reading PPCBUG NVRAM during boot" if PPLUS || LOPEC |
| 381 | default y if PPC_PREP |
| 382 | |
| 383 | config IRQ_ALL_CPUS |
| 384 | bool "Distribute interrupts on all CPUs by default" |
| 385 | depends on SMP && !MV64360 |
| 386 | help |
| 387 | This option gives the kernel permission to distribute IRQs across |
| 388 | multiple CPUs. Saying N here will route all IRQs to the first |
| 389 | CPU. Generally saying Y is safe, although some problems have been |
| 390 | reported with SMP Power Macintoshes with this option enabled. |
| 391 | |
Michael Ellerman | cd01570 | 2009-10-13 19:45:03 +0000 | [diff] [blame] | 392 | config SPARSE_IRQ |
| 393 | bool "Support sparse irq numbering" |
Yang Li | 9ce9168 | 2010-06-28 23:32:57 +0000 | [diff] [blame] | 394 | default n |
Michael Ellerman | cd01570 | 2009-10-13 19:45:03 +0000 | [diff] [blame] | 395 | help |
| 396 | This enables support for sparse irqs. This is useful for distro |
| 397 | kernels that want to define a high CONFIG_NR_CPUS value but still |
| 398 | want to have low kernel memory footprint on smaller machines. |
| 399 | |
| 400 | ( Sparse IRQs can also be beneficial on NUMA boxes, as they spread |
| 401 | out the irq_desc[] array in a more NUMA-friendly way. ) |
| 402 | |
Yang Li | 9ce9168 | 2010-06-28 23:32:57 +0000 | [diff] [blame] | 403 | If you don't know what to do here, say N. |
Michael Ellerman | cd01570 | 2009-10-13 19:45:03 +0000 | [diff] [blame] | 404 | |
Andy Whitcroft | ffa27b6 | 2005-10-28 17:46:58 -0700 | [diff] [blame] | 405 | config NUMA |
| 406 | bool "NUMA support" |
| 407 | depends on PPC64 |
| 408 | default y if SMP && PPC_PSERIES |
| 409 | |
Yasunori Goto | c80d79d | 2006-04-10 22:53:53 -0700 | [diff] [blame] | 410 | config NODES_SHIFT |
| 411 | int |
Anton Blanchard | ea55bf2 | 2009-09-21 19:56:43 +0000 | [diff] [blame] | 412 | default "8" if PPC64 |
Yasunori Goto | c80d79d | 2006-04-10 22:53:53 -0700 | [diff] [blame] | 413 | default "4" |
| 414 | depends on NEED_MULTIPLE_NODES |
| 415 | |
Anton Blanchard | ea55bf2 | 2009-09-21 19:56:43 +0000 | [diff] [blame] | 416 | config MAX_ACTIVE_REGIONS |
| 417 | int |
| 418 | default "256" if PPC64 |
| 419 | default "32" |
| 420 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 421 | config ARCH_SELECT_MEMORY_MODEL |
| 422 | def_bool y |
| 423 | depends on PPC64 |
| 424 | |
| 425 | config ARCH_FLATMEM_ENABLE |
Andy Whitcroft | 9100b20 | 2005-11-29 19:20:55 +0000 | [diff] [blame] | 426 | def_bool y |
| 427 | depends on (PPC64 && !NUMA) || PPC32 |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 428 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 429 | config ARCH_SPARSEMEM_ENABLE |
| 430 | def_bool y |
Andy Whitcroft | 9100b20 | 2005-11-29 19:20:55 +0000 | [diff] [blame] | 431 | depends on PPC64 |
Andy Whitcroft | d29eff7bc | 2007-10-16 01:24:17 -0700 | [diff] [blame] | 432 | select SPARSEMEM_VMEMMAP_ENABLE |
Anton Blanchard | 45fb6ce | 2005-11-11 14:22:35 +1100 | [diff] [blame] | 433 | |
| 434 | config ARCH_SPARSEMEM_DEFAULT |
| 435 | def_bool y |
Benjamin Herrenschmidt | 78bde53 | 2007-02-13 11:46:06 +1100 | [diff] [blame] | 436 | depends on (SMP && PPC_PSERIES) || PPC_PS3 |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 437 | |
Mel Gorman | c67c3cb | 2006-09-27 01:49:49 -0700 | [diff] [blame] | 438 | config ARCH_POPULATES_NODE_MAP |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 439 | def_bool y |
Mel Gorman | c67c3cb | 2006-09-27 01:49:49 -0700 | [diff] [blame] | 440 | |
Benjamin Herrenschmidt | 5a1eb5c | 2009-10-30 15:03:54 +1100 | [diff] [blame] | 441 | config SYS_SUPPORTS_HUGETLBFS |
| 442 | def_bool y |
| 443 | depends on PPC_BOOK3S_64 |
| 444 | |
Mel Gorman | c67c3cb | 2006-09-27 01:49:49 -0700 | [diff] [blame] | 445 | source "mm/Kconfig" |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 446 | |
Mike Kravetz | 7e9191d | 2005-11-07 09:39:48 -0800 | [diff] [blame] | 447 | config ARCH_MEMORY_PROBE |
| 448 | def_bool y |
| 449 | depends on MEMORY_HOTPLUG |
| 450 | |
Andy Whitcroft | 751679573 | 2006-10-21 10:24:14 -0700 | [diff] [blame] | 451 | # Some NUMA nodes have memory ranges that span |
| 452 | # other nodes. Even though a pfn is valid and |
| 453 | # between a node's start and end pfns, it may not |
| 454 | # reside on that node. See memmap_init_zone() |
| 455 | # for details. |
| 456 | config NODES_SPAN_OTHER_NODES |
| 457 | def_bool y |
| 458 | depends on NEED_MULTIPLE_NODES |
| 459 | |
Benjamin Herrenschmidt | 16c2d47 | 2007-05-08 16:27:28 +1000 | [diff] [blame] | 460 | config PPC_HAS_HASH_64K |
| 461 | bool |
| 462 | depends on PPC64 |
| 463 | default n |
| 464 | |
Yuri Tikhonov | e124012 | 2009-01-29 01:40:44 +0000 | [diff] [blame] | 465 | config STDBINUTILS |
| 466 | bool "Using standard binutils settings" |
| 467 | depends on 44x |
| 468 | default y |
| 469 | help |
| 470 | Turning this option off allows you to select 256KB PAGE_SIZE on 44x. |
| 471 | Note, that kernel will be able to run only those applications, |
| 472 | which had been compiled using binutils later than 2.17.50.0.3 with |
| 473 | '-zmax-page-size' set to 256K (the default is 64K). Or, if using |
| 474 | the older binutils, you can patch them with a trivial patch, which |
| 475 | changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000. |
| 476 | |
Ilya Yanok | ca9153a | 2008-12-11 04:55:41 +0300 | [diff] [blame] | 477 | choice |
| 478 | prompt "Page size" |
| 479 | default PPC_4K_PAGES |
Benjamin Herrenschmidt | 3c726f8 | 2005-11-07 11:06:55 +1100 | [diff] [blame] | 480 | help |
Ilya Yanok | ca9153a | 2008-12-11 04:55:41 +0300 | [diff] [blame] | 481 | Select the kernel logical page size. Increasing the page size |
| 482 | will reduce software overhead at each page boundary, allow |
| 483 | hardware prefetch mechanisms to be more effective, and allow |
| 484 | larger dma transfers increasing IO efficiency and reducing |
| 485 | overhead. However the utilization of memory will increase. |
| 486 | For example, each cached file will using a multiple of the |
| 487 | page size to hold its contents and the difference between the |
| 488 | end of file and the end of page is wasted. |
| 489 | |
| 490 | Some dedicated systems, such as software raid serving with |
| 491 | accelerated calculations, have shown significant increases. |
| 492 | |
| 493 | If you configure a 64 bit kernel for 64k pages but the |
| 494 | processor does not support them, then the kernel will simulate |
| 495 | them with 4k pages, loading them on demand, but with the |
| 496 | reduced software overhead and larger internal fragmentation. |
| 497 | For the 32 bit kernel, a large page option will not be offered |
| 498 | unless it is supported by the configured processor. |
| 499 | |
| 500 | If unsure, choose 4K_PAGES. |
| 501 | |
| 502 | config PPC_4K_PAGES |
| 503 | bool "4k page size" |
| 504 | |
| 505 | config PPC_16K_PAGES |
| 506 | bool "16k page size" if 44x |
| 507 | |
| 508 | config PPC_64K_PAGES |
Benjamin Herrenschmidt | 2d27cfd | 2009-07-23 23:15:59 +0000 | [diff] [blame] | 509 | bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64 |
Ilya Yanok | ca9153a | 2008-12-11 04:55:41 +0300 | [diff] [blame] | 510 | select PPC_HAS_HASH_64K if PPC_STD_MMU_64 |
| 511 | |
Yuri Tikhonov | e124012 | 2009-01-29 01:40:44 +0000 | [diff] [blame] | 512 | config PPC_256K_PAGES |
| 513 | bool "256k page size" if 44x |
Hugh Dickins | adf213c | 2009-04-06 11:01:15 +0000 | [diff] [blame] | 514 | depends on !STDBINUTILS |
Yuri Tikhonov | e124012 | 2009-01-29 01:40:44 +0000 | [diff] [blame] | 515 | help |
| 516 | Make the page size 256k. |
| 517 | |
| 518 | As the ELF standard only requires alignment to support page |
| 519 | sizes up to 64k, you will need to compile all of your user |
| 520 | space applications with a non-standard binutils settings |
| 521 | (see the STDBINUTILS description for details). |
| 522 | |
| 523 | Say N unless you know what you are doing. |
| 524 | |
Ilya Yanok | ca9153a | 2008-12-11 04:55:41 +0300 | [diff] [blame] | 525 | endchoice |
Benjamin Herrenschmidt | 3c726f8 | 2005-11-07 11:06:55 +1100 | [diff] [blame] | 526 | |
Stephen Rothwell | 53bcddb | 2008-04-11 11:11:56 +1000 | [diff] [blame] | 527 | config FORCE_MAX_ZONEORDER |
| 528 | int "Maximum zone order" |
Benjamin Herrenschmidt | 066c4b8 | 2009-07-21 15:25:53 +0000 | [diff] [blame] | 529 | range 9 64 if PPC64 && PPC_64K_PAGES |
| 530 | default "9" if PPC64 && PPC_64K_PAGES |
| 531 | range 13 64 if PPC64 && !PPC_64K_PAGES |
| 532 | default "13" if PPC64 && !PPC_64K_PAGES |
| 533 | range 9 64 if PPC32 && PPC_16K_PAGES |
| 534 | default "9" if PPC32 && PPC_16K_PAGES |
| 535 | range 7 64 if PPC32 && PPC_64K_PAGES |
| 536 | default "7" if PPC32 && PPC_64K_PAGES |
| 537 | range 5 64 if PPC32 && PPC_256K_PAGES |
| 538 | default "5" if PPC32 && PPC_256K_PAGES |
Johannes Berg | ebe40c5 | 2008-09-24 04:29:08 +0000 | [diff] [blame] | 539 | range 11 64 |
Stephen Rothwell | 53bcddb | 2008-04-11 11:11:56 +1000 | [diff] [blame] | 540 | default "11" |
| 541 | help |
| 542 | The kernel memory allocator divides physically contiguous memory |
| 543 | blocks into "zones", where each zone is a power of two number of |
| 544 | pages. This option selects the largest power of two that the kernel |
| 545 | keeps in the memory allocator. If you need to allocate very large |
| 546 | blocks of physically contiguous memory, then you may need to |
| 547 | increase this value. |
| 548 | |
| 549 | This config option is actually maximum order plus one. For example, |
| 550 | a value of 11 means that the largest free memory block is 2^10 pages. |
| 551 | |
| 552 | The page size is not necessarily 4KB. For example, on 64-bit |
| 553 | systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep |
| 554 | this in mind when choosing a value for this option. |
| 555 | |
Paul Mackerras | fa28237 | 2008-01-24 08:35:13 +1100 | [diff] [blame] | 556 | config PPC_SUBPAGE_PROT |
| 557 | bool "Support setting protections for 4k subpages" |
Ilya Yanok | ca9153a | 2008-12-11 04:55:41 +0300 | [diff] [blame] | 558 | depends on PPC_STD_MMU_64 && PPC_64K_PAGES |
Paul Mackerras | fa28237 | 2008-01-24 08:35:13 +1100 | [diff] [blame] | 559 | help |
| 560 | This option adds support for a system call to allow user programs |
| 561 | to set access permissions (read/write, readonly, or no access) |
| 562 | on the 4k subpages of each 64k page. |
| 563 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 564 | config SCHED_SMT |
| 565 | bool "SMT (Hyperthreading) scheduler support" |
| 566 | depends on PPC64 && SMP |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 567 | help |
| 568 | SMT scheduler support improves the CPU scheduler's decision making |
| 569 | when dealing with POWER5 cpus at a cost of slightly increased |
| 570 | overhead in some places. If unsure say N here. |
| 571 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 572 | config CMDLINE_BOOL |
| 573 | bool "Default bootloader kernel arguments" |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 574 | |
| 575 | config CMDLINE |
| 576 | string "Initial kernel command string" |
| 577 | depends on CMDLINE_BOOL |
| 578 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" |
| 579 | help |
| 580 | On some platforms, there is currently no way for the boot loader to |
| 581 | pass arguments to the kernel. For these platforms, you can supply |
| 582 | some command-line options at build time by entering them here. In |
| 583 | most cases you will need to specify the root device here. |
| 584 | |
Grant Likely | c356aa4 | 2008-07-09 09:41:52 -0600 | [diff] [blame] | 585 | config EXTRA_TARGETS |
| 586 | string "Additional default image types" |
| 587 | help |
| 588 | List additional targets to be built by the bootwrapper here (separated |
| 589 | by spaces). This is useful for targets that depend of device tree |
| 590 | files in the .dts directory. |
| 591 | |
| 592 | Targets in this list will be build as part of the default build |
| 593 | target, or when the user does a 'make zImage' or a |
| 594 | 'make zImage.initrd'. |
| 595 | |
| 596 | If unsure, leave blank |
| 597 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 598 | if !44x || BROKEN |
Johannes Berg | b28f508 | 2008-01-15 23:17:00 -0500 | [diff] [blame] | 599 | config ARCH_WANTS_FREEZER_CONTROL |
| 600 | def_bool y |
| 601 | depends on ADB_PMU |
| 602 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 603 | source kernel/power/Kconfig |
| 604 | endif |
| 605 | |
| 606 | config SECCOMP |
| 607 | bool "Enable seccomp to safely compute untrusted bytecode" |
| 608 | depends on PROC_FS |
| 609 | default y |
| 610 | help |
| 611 | This kernel feature is useful for number crunching applications |
| 612 | that may need to compute untrusted bytecode during their |
| 613 | execution. By using pipes or other transports made available to |
| 614 | the process as file descriptors supporting the read/write |
| 615 | syscalls, it's possible to isolate those applications in |
| 616 | their own address space using seccomp. Once seccomp is |
| 617 | enabled via /proc/<pid>/seccomp, it cannot be disabled |
| 618 | and the task is only allowed to execute a few safe syscalls |
| 619 | defined by each seccomp mode. |
| 620 | |
| 621 | If unsure, say Y. Only embedded should say N here. |
| 622 | |
| 623 | endmenu |
| 624 | |
| 625 | config ISA_DMA_API |
| 626 | bool |
Stephen Rothwell | 373a6da | 2007-12-21 15:37:07 +1100 | [diff] [blame] | 627 | default !PPC_ISERIES || PCI |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 628 | |
| 629 | menu "Bus options" |
| 630 | |
| 631 | config ISA |
| 632 | bool "Support for ISA-bus hardware" |
| 633 | depends on PPC_PREP || PPC_CHRP |
Paul Mackerras | f9bd170 | 2005-10-26 16:47:42 +1000 | [diff] [blame] | 634 | select PPC_I8259 |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 635 | help |
| 636 | Find out whether you have ISA slots on your motherboard. ISA is the |
| 637 | name of a bus system, i.e. the way the CPU talks to the other stuff |
| 638 | inside your box. If you have an Apple machine, say N here; if you |
| 639 | have an IBM RS/6000 or pSeries machine or a PReP machine, say Y. If |
| 640 | you have an embedded board, consult your board documentation. |
| 641 | |
Christoph Lameter | 5ac6da6 | 2007-02-10 01:43:14 -0800 | [diff] [blame] | 642 | config ZONE_DMA |
| 643 | bool |
| 644 | default y |
| 645 | |
FUJITA Tomonori | af407c6 | 2010-03-10 15:23:27 -0800 | [diff] [blame] | 646 | config NEED_DMA_MAP_STATE |
| 647 | def_bool (PPC64 || NOT_COHERENT_CACHE) |
| 648 | |
FUJITA Tomonori | e32205e | 2010-05-26 14:44:33 -0700 | [diff] [blame] | 649 | config NEED_SG_DMA_LENGTH |
| 650 | def_bool y |
| 651 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 652 | config GENERIC_ISA_DMA |
| 653 | bool |
Anton Vorontsov | 1927445 | 2010-07-15 07:38:16 +0000 | [diff] [blame] | 654 | depends on ISA_DMA_API |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 655 | default y |
| 656 | |
Paul Mackerras | 25635c7 | 2005-10-26 16:36:55 +1000 | [diff] [blame] | 657 | config PPC_INDIRECT_PCI |
| 658 | bool |
| 659 | depends on PCI |
Becky Bruce | 63dafe5 | 2006-01-14 16:57:39 -0600 | [diff] [blame] | 660 | default y if 40x || 44x |
Paul Mackerras | 25635c7 | 2005-10-26 16:36:55 +1000 | [diff] [blame] | 661 | default n |
| 662 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 663 | config EISA |
| 664 | bool |
| 665 | |
| 666 | config SBUS |
| 667 | bool |
| 668 | |
Kumar Gala | 08264cb | 2006-01-10 21:43:56 -0600 | [diff] [blame] | 669 | config FSL_SOC |
| 670 | bool |
| 671 | |
Roy Zang | 55c4499 | 2007-07-10 18:44:34 +0800 | [diff] [blame] | 672 | config FSL_PCI |
| 673 | bool |
| 674 | select PPC_INDIRECT_PCI |
Kumar Gala | d083911 | 2009-01-28 13:25:29 -0600 | [diff] [blame] | 675 | select PCI_QUIRKS |
Roy Zang | 55c4499 | 2007-07-10 18:44:34 +0800 | [diff] [blame] | 676 | |
Anton Vorontsov | 4ffd695 | 2009-09-16 01:43:57 +0400 | [diff] [blame] | 677 | config FSL_PMC |
| 678 | bool |
| 679 | default y |
| 680 | depends on SUSPEND && (PPC_85xx || PPC_86xx) |
| 681 | help |
| 682 | Freescale MPC85xx/MPC86xx power management controller support |
| 683 | (suspend/resume). For MPC83xx see platforms/83xx/suspend.c |
| 684 | |
Stefan Roese | 2a70691 | 2008-03-26 22:39:50 +1100 | [diff] [blame] | 685 | config 4xx_SOC |
| 686 | bool |
| 687 | |
Anton Vorontsov | acaa7aa | 2008-04-11 21:03:40 +0400 | [diff] [blame] | 688 | config FSL_LBC |
Roy Zang | 3ab8f2a | 2010-10-18 15:22:31 +0800 | [diff] [blame] | 689 | bool "Freescale Local Bus support" |
| 690 | depends on FSL_SOC |
Anton Vorontsov | acaa7aa | 2008-04-11 21:03:40 +0400 | [diff] [blame] | 691 | help |
Roy Zang | 3ab8f2a | 2010-10-18 15:22:31 +0800 | [diff] [blame] | 692 | Enables reporting of errors from the Freescale local bus |
| 693 | controller. Also contains some common code used by |
| 694 | drivers for specific local bus peripherals. |
Anton Vorontsov | acaa7aa | 2008-04-11 21:03:40 +0400 | [diff] [blame] | 695 | |
Anton Vorontsov | 83ff9dc | 2008-05-23 20:38:54 +0400 | [diff] [blame] | 696 | config FSL_GTM |
| 697 | bool |
| 698 | depends on PPC_83xx || QUICC_ENGINE || CPM2 |
| 699 | help |
| 700 | Freescale General-purpose Timers support |
| 701 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 702 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any |
| 703 | config MCA |
| 704 | bool |
| 705 | |
John Rigby | b500563 | 2008-06-26 11:07:56 -0600 | [diff] [blame] | 706 | # Platforms that what PCI turned unconditionally just do select PCI |
| 707 | # in their config node. Platforms that want to choose at config |
| 708 | # time should select PPC_PCI_CHOICE |
| 709 | config PPC_PCI_CHOICE |
| 710 | bool |
| 711 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 712 | config PCI |
John Rigby | b500563 | 2008-06-26 11:07:56 -0600 | [diff] [blame] | 713 | bool "PCI support" if PPC_PCI_CHOICE |
| 714 | default y if !40x && !CPM2 && !8xx && !PPC_83xx \ |
Albert Herranz | bcc4859 | 2009-12-12 06:31:39 +0000 | [diff] [blame] | 715 | && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON |
David Gibson | f21f49e | 2007-06-13 14:52:54 +1000 | [diff] [blame] | 716 | default PCI_PERMEDIA if !4xx && !CPM2 && !8xx |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 717 | default PCI_QSPAN if !4xx && !CPM2 && 8xx |
Michael Ellerman | df87ef5 | 2007-05-08 12:58:34 +1000 | [diff] [blame] | 718 | select ARCH_SUPPORTS_MSI |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 719 | help |
| 720 | Find out whether your system includes a PCI bus. PCI is the name of |
| 721 | a bus system, i.e. the way the CPU talks to the other stuff inside |
| 722 | your box. If you say Y here, the kernel will include drivers and |
| 723 | infrastructure code to support PCI bus devices. |
| 724 | |
| 725 | config PCI_DOMAINS |
Matthew Wilcox | 36e2359 | 2007-07-10 10:54:40 -0600 | [diff] [blame] | 726 | def_bool PCI |
| 727 | |
| 728 | config PCI_SYSCALL |
| 729 | def_bool PCI |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 730 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 731 | config PCI_QSPAN |
| 732 | bool "QSpan PCI" |
| 733 | depends on !4xx && !CPM2 && 8xx |
Paul Mackerras | f9bd170 | 2005-10-26 16:47:42 +1000 | [diff] [blame] | 734 | select PPC_I8259 |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 735 | help |
| 736 | Say Y here if you have a system based on a Motorola 8xx-series |
| 737 | embedded processor with a QSPAN PCI interface, otherwise say N. |
| 738 | |
| 739 | config PCI_8260 |
| 740 | bool |
| 741 | depends on PCI && 8260 |
Paul Mackerras | 25635c7 | 2005-10-26 16:36:55 +1000 | [diff] [blame] | 742 | select PPC_INDIRECT_PCI |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 743 | default y |
| 744 | |
| 745 | config 8260_PCI9 |
Andrew Morton | 4a3ecc62 | 2006-06-01 20:36:04 -0700 | [diff] [blame] | 746 | bool "Enable workaround for MPC826x erratum PCI 9" |
Scott Wood | e00c549 | 2007-09-14 15:41:56 -0500 | [diff] [blame] | 747 | depends on PCI_8260 && !8272 |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 748 | default y |
| 749 | |
| 750 | choice |
Andrew Morton | 4a3ecc62 | 2006-06-01 20:36:04 -0700 | [diff] [blame] | 751 | prompt "IDMA channel for PCI 9 workaround" |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 752 | depends on 8260_PCI9 |
| 753 | |
| 754 | config 8260_PCI9_IDMA1 |
| 755 | bool "IDMA1" |
| 756 | |
| 757 | config 8260_PCI9_IDMA2 |
| 758 | bool "IDMA2" |
| 759 | |
| 760 | config 8260_PCI9_IDMA3 |
| 761 | bool "IDMA3" |
| 762 | |
| 763 | config 8260_PCI9_IDMA4 |
| 764 | bool "IDMA4" |
| 765 | |
| 766 | endchoice |
| 767 | |
Jake Moilanen | bb53bb3 | 2006-06-07 16:05:46 -0500 | [diff] [blame] | 768 | source "drivers/pci/pcie/Kconfig" |
| 769 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 770 | source "drivers/pci/Kconfig" |
| 771 | |
| 772 | source "drivers/pcmcia/Kconfig" |
| 773 | |
| 774 | source "drivers/pci/hotplug/Kconfig" |
| 775 | |
Zhang Wei | f1f389d | 2008-04-18 13:33:39 -0700 | [diff] [blame] | 776 | config HAS_RAPIDIO |
| 777 | bool |
| 778 | default n |
| 779 | |
| 780 | config RAPIDIO |
| 781 | bool "RapidIO support" |
| 782 | depends on HAS_RAPIDIO |
| 783 | help |
| 784 | If you say Y here, the kernel will include drivers and |
| 785 | infrastructure code to support RapidIO interconnect devices. |
| 786 | |
| 787 | source "drivers/rapidio/Kconfig" |
| 788 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 789 | endmenu |
| 790 | |
| 791 | menu "Advanced setup" |
| 792 | depends on PPC32 |
| 793 | |
| 794 | config ADVANCED_OPTIONS |
| 795 | bool "Prompt for advanced kernel configuration options" |
| 796 | help |
| 797 | This option will enable prompting for a variety of advanced kernel |
| 798 | configuration options. These options can cause the kernel to not |
| 799 | work if they are set incorrectly, but can be used to optimize certain |
| 800 | aspects of kernel memory management. |
| 801 | |
| 802 | Unless you know what you are doing, say N here. |
| 803 | |
| 804 | comment "Default settings for advanced configuration options are used" |
| 805 | depends on !ADVANCED_OPTIONS |
| 806 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 807 | config LOWMEM_SIZE_BOOL |
| 808 | bool "Set maximum low memory" |
| 809 | depends on ADVANCED_OPTIONS |
| 810 | help |
| 811 | This option allows you to set the maximum amount of memory which |
| 812 | will be used as "low memory", that is, memory which the kernel can |
| 813 | access directly, without having to set up a kernel virtual mapping. |
| 814 | This can be useful in optimizing the layout of kernel virtual |
| 815 | memory. |
| 816 | |
| 817 | Say N here unless you know what you are doing. |
| 818 | |
| 819 | config LOWMEM_SIZE |
| 820 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL |
| 821 | default "0x30000000" |
| 822 | |
Trent Piepho | 9605146 | 2008-12-08 19:34:58 -0800 | [diff] [blame] | 823 | config LOWMEM_CAM_NUM_BOOL |
| 824 | bool "Set number of CAMs to use to map low memory" |
| 825 | depends on ADVANCED_OPTIONS && FSL_BOOKE |
| 826 | help |
| 827 | This option allows you to set the maximum number of CAM slots that |
| 828 | will be used to map low memory. There are a limited number of slots |
| 829 | available and even more limited number that will fit in the L1 MMU. |
| 830 | However, using more entries will allow mapping more low memory. This |
| 831 | can be useful in optimizing the layout of kernel virtual memory. |
| 832 | |
| 833 | Say N here unless you know what you are doing. |
| 834 | |
| 835 | config LOWMEM_CAM_NUM |
Josh Boyer | 9b71dbd | 2009-03-31 08:05:50 -0400 | [diff] [blame] | 836 | depends on FSL_BOOKE |
Trent Piepho | 9605146 | 2008-12-08 19:34:58 -0800 | [diff] [blame] | 837 | int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL |
| 838 | default 3 |
| 839 | |
Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 840 | config RELOCATABLE |
| 841 | bool "Build a relocatable kernel (EXPERIMENTAL)" |
| 842 | depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE |
| 843 | help |
| 844 | This builds a kernel image that is capable of running at the |
| 845 | location the kernel is loaded at (some alignment restrictions may |
| 846 | exist). |
| 847 | |
| 848 | One use is for the kexec on panic case where the recovery kernel |
| 849 | must live at a different physical address than the primary |
| 850 | kernel. |
| 851 | |
| 852 | Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address |
| 853 | it has been loaded at and the compile time physical addresses |
| 854 | CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START |
| 855 | setting can still be useful to bootwrappers that need to know the |
| 856 | load location of the kernel (eg. u-boot/mkimage). |
| 857 | |
| 858 | config PAGE_OFFSET_BOOL |
| 859 | bool "Set custom page offset address" |
| 860 | depends on ADVANCED_OPTIONS |
| 861 | help |
| 862 | This option allows you to set the kernel virtual address at which |
| 863 | the kernel will map low memory. This can be useful in optimizing |
| 864 | the virtual memory layout of the system. |
| 865 | |
| 866 | Say N here unless you know what you are doing. |
| 867 | |
| 868 | config PAGE_OFFSET |
| 869 | hex "Virtual address of memory base" if PAGE_OFFSET_BOOL |
| 870 | default "0xc0000000" |
| 871 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 872 | config KERNEL_START_BOOL |
| 873 | bool "Set custom kernel base address" |
| 874 | depends on ADVANCED_OPTIONS |
| 875 | help |
| 876 | This option allows you to set the kernel virtual address at which |
Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 877 | the kernel will be loaded. Normally this should match PAGE_OFFSET |
| 878 | however there are times (like kdump) that one might not want them |
| 879 | to be the same. |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 880 | |
| 881 | Say N here unless you know what you are doing. |
| 882 | |
| 883 | config KERNEL_START |
| 884 | hex "Virtual address of kernel base" if KERNEL_START_BOOL |
Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 885 | default PAGE_OFFSET if PAGE_OFFSET_BOOL |
Matthew McClintock | f933a41 | 2010-07-21 16:14:53 -0500 | [diff] [blame] | 886 | default "0xc2000000" if CRASH_DUMP && !RELOCATABLE |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 887 | default "0xc0000000" |
| 888 | |
Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 889 | config PHYSICAL_START_BOOL |
| 890 | bool "Set physical address where the kernel is loaded" |
| 891 | depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE |
| 892 | help |
| 893 | This gives the physical address where the kernel is loaded. |
| 894 | |
| 895 | Say N here unless you know what you are doing. |
| 896 | |
| 897 | config PHYSICAL_START |
| 898 | hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL |
Matthew McClintock | f933a41 | 2010-07-21 16:14:53 -0500 | [diff] [blame] | 899 | default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !RELOCATABLE |
Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 900 | default "0x00000000" |
| 901 | |
| 902 | config PHYSICAL_ALIGN |
| 903 | hex |
Trent Piepho | c8f3570 | 2008-12-08 19:34:59 -0800 | [diff] [blame] | 904 | default "0x04000000" if FSL_BOOKE |
Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 905 | help |
| 906 | This value puts the alignment restrictions on physical address |
| 907 | where kernel is loaded and run from. Kernel is compiled for an |
| 908 | address which meets above alignment restriction. |
| 909 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 910 | config TASK_SIZE_BOOL |
| 911 | bool "Set custom user task size" |
| 912 | depends on ADVANCED_OPTIONS |
| 913 | help |
| 914 | This option allows you to set the amount of virtual address space |
| 915 | allocated to user tasks. This can be useful in optimizing the |
| 916 | virtual memory layout of the system. |
| 917 | |
| 918 | Say N here unless you know what you are doing. |
| 919 | |
| 920 | config TASK_SIZE |
| 921 | hex "Size of user task space" if TASK_SIZE_BOOL |
Kumar Gala | 4d9e5510 | 2007-10-11 13:40:21 -0500 | [diff] [blame] | 922 | default "0x80000000" if PPC_PREP || PPC_8xx |
| 923 | default "0xc0000000" |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 924 | |
Benjamin Herrenschmidt | 84532a0 | 2009-05-27 13:33:14 +1000 | [diff] [blame] | 925 | config CONSISTENT_SIZE_BOOL |
| 926 | bool "Set custom consistent memory pool size" |
| 927 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE |
| 928 | help |
| 929 | This option allows you to set the size of the |
| 930 | consistent memory pool. This pool of virtual memory |
| 931 | is used to make consistent memory allocations. |
| 932 | |
| 933 | config CONSISTENT_SIZE |
| 934 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL |
| 935 | default "0x00200000" if NOT_COHERENT_CACHE |
| 936 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 937 | config PIN_TLB |
| 938 | bool "Pinned Kernel TLBs (860 ONLY)" |
| 939 | depends on ADVANCED_OPTIONS && 8xx |
| 940 | endmenu |
| 941 | |
Stephen Rothwell | cabb5587 | 2005-09-30 16:16:52 +1000 | [diff] [blame] | 942 | if PPC64 |
Paul Mackerras | 549e815 | 2008-08-30 11:43:47 +1000 | [diff] [blame] | 943 | config RELOCATABLE |
| 944 | bool "Build a relocatable kernel" |
| 945 | help |
| 946 | This builds a kernel image that is capable of running anywhere |
| 947 | in the RMA (real memory area) at any 16k-aligned base address. |
| 948 | The kernel is linked as a position-independent executable (PIE) |
| 949 | and contains dynamic relocations which are processed early |
| 950 | in the bootup process. |
| 951 | |
| 952 | One use is for the kexec on panic case where the recovery kernel |
| 953 | must live at a different physical address than the primary |
| 954 | kernel. |
| 955 | |
Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 956 | config PAGE_OFFSET |
Stephen Rothwell | cabb5587 | 2005-09-30 16:16:52 +1000 | [diff] [blame] | 957 | hex |
Stephen Rothwell | eeb2d21 | 2005-09-30 17:24:15 +1000 | [diff] [blame] | 958 | default "0xc000000000000000" |
Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 959 | config KERNEL_START |
| 960 | hex |
Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 961 | default "0xc000000000000000" |
| 962 | config PHYSICAL_START |
| 963 | hex |
Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 964 | default "0x00000000" |
Stephen Rothwell | cabb5587 | 2005-09-30 16:16:52 +1000 | [diff] [blame] | 965 | endif |
| 966 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 967 | source "net/Kconfig" |
| 968 | |
| 969 | source "drivers/Kconfig" |
| 970 | |
| 971 | source "fs/Kconfig" |
| 972 | |
Li Yang | 9865853 | 2006-10-03 23:10:46 -0500 | [diff] [blame] | 973 | source "arch/powerpc/sysdev/qe_lib/Kconfig" |
| 974 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 975 | source "lib/Kconfig" |
| 976 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 977 | source "arch/powerpc/Kconfig.debug" |
| 978 | |
| 979 | source "security/Kconfig" |
| 980 | |
| 981 | config KEYS_COMPAT |
| 982 | bool |
| 983 | depends on COMPAT && KEYS |
| 984 | default y |
| 985 | |
| 986 | source "crypto/Kconfig" |
Domen Puncer | 6f66828 | 2007-09-21 00:00:11 +1000 | [diff] [blame] | 987 | |
| 988 | config PPC_CLOCK |
| 989 | bool |
| 990 | default n |
David Brownell | 9483a57 | 2008-07-23 21:26:48 -0700 | [diff] [blame] | 991 | select HAVE_CLK |
Sylvain Munaut | 1088a20 | 2007-09-16 20:53:25 +1000 | [diff] [blame] | 992 | |
| 993 | config PPC_LIB_RHEAP |
| 994 | bool |
| 995 | |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 996 | source "arch/powerpc/kvm/Kconfig" |