| 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 |  | 
| FUJITA Tomonori | 787d44c | 2010-10-01 11:12:54 +0000 | [diff] [blame] | 23 | config ARCH_DMA_ADDR_T_64BIT | 
|  | 24 | def_bool ARCH_PHYS_ADDR_T_64BIT | 
|  | 25 |  | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 26 | config MMU | 
|  | 27 | bool | 
|  | 28 | default y | 
|  | 29 |  | 
| Tony Breeds | aa3be5f | 2007-09-21 13:26:02 +1000 | [diff] [blame] | 30 | config GENERIC_CMOS_UPDATE | 
|  | 31 | def_bool y | 
|  | 32 |  | 
| Tony Breeds | 4a4cfe3 | 2007-09-22 07:35:52 +1000 | [diff] [blame] | 33 | config GENERIC_TIME_VSYSCALL | 
|  | 34 | def_bool y | 
|  | 35 |  | 
| Tony Breeds | d831d0b | 2007-09-21 13:26:03 +1000 | [diff] [blame] | 36 | config GENERIC_CLOCKEVENTS | 
|  | 37 | def_bool y | 
|  | 38 |  | 
| Tejun Heo | c2a7e81 | 2009-08-14 15:00:53 +0900 | [diff] [blame] | 39 | config HAVE_SETUP_PER_CPU_AREA | 
| Tejun Heo | e74e396 | 2009-03-30 19:07:44 +0900 | [diff] [blame] | 40 | def_bool PPC64 | 
|  | 41 |  | 
| Tejun Heo | c2a7e81 | 2009-08-14 15:00:53 +0900 | [diff] [blame] | 42 | config NEED_PER_CPU_EMBED_FIRST_CHUNK | 
| travis@sgi.com | b32ef63 | 2008-01-30 13:32:51 +0100 | [diff] [blame] | 43 | def_bool PPC64 | 
|  | 44 |  | 
| Michael Ellerman | 551b81f | 2009-10-13 19:44:44 +0000 | [diff] [blame] | 45 | config NR_IRQS | 
|  | 46 | int "Number of virtual interrupt numbers" | 
| Anton Blanchard | 859aefc | 2010-01-31 01:14:03 +0000 | [diff] [blame] | 47 | range 32 32768 | 
| Michael Ellerman | 551b81f | 2009-10-13 19:44:44 +0000 | [diff] [blame] | 48 | default "512" | 
|  | 49 | help | 
|  | 50 | This defines the number of virtual interrupt numbers the kernel | 
|  | 51 | can manage. Virtual interrupt numbers are what you see in | 
|  | 52 | /proc/interrupts. If you configure your system to have too few, | 
|  | 53 | drivers will fail to load or worse - handle with care. | 
|  | 54 |  | 
| Christoph Hellwig | fd3e0bb | 2008-04-17 14:35:00 +1000 | [diff] [blame] | 55 | config STACKTRACE_SUPPORT | 
|  | 56 | bool | 
|  | 57 | default y | 
|  | 58 |  | 
| Arnd Bergmann | 01f4b8b | 2008-07-11 00:08:18 +1000 | [diff] [blame] | 59 | config HAVE_LATENCYTOP_SUPPORT | 
|  | 60 | def_bool y | 
|  | 61 |  | 
| Benjamin Herrenschmidt | 945feb1 | 2008-04-17 14:35:01 +1000 | [diff] [blame] | 62 | config TRACE_IRQFLAGS_SUPPORT | 
|  | 63 | bool | 
| Benjamin Herrenschmidt | 945feb1 | 2008-04-17 14:35:01 +1000 | [diff] [blame] | 64 | default y | 
|  | 65 |  | 
|  | 66 | config LOCKDEP_SUPPORT | 
|  | 67 | bool | 
|  | 68 | default y | 
|  | 69 |  | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 70 | config RWSEM_GENERIC_SPINLOCK | 
|  | 71 | bool | 
|  | 72 |  | 
|  | 73 | config RWSEM_XCHGADD_ALGORITHM | 
|  | 74 | bool | 
|  | 75 | default y | 
|  | 76 |  | 
| Nick Piggin | 95c354f | 2008-01-30 13:31:20 +0100 | [diff] [blame] | 77 | config GENERIC_LOCKBREAK | 
|  | 78 | bool | 
|  | 79 | default y | 
|  | 80 | depends on SMP && PREEMPT | 
|  | 81 |  | 
| David Howells | f0d1b0b | 2006-12-08 02:37:49 -0800 | [diff] [blame] | 82 | config ARCH_HAS_ILOG2_U32 | 
|  | 83 | bool | 
| David Howells | ef55d53 | 2006-12-08 02:37:53 -0800 | [diff] [blame] | 84 | default y | 
| David Howells | f0d1b0b | 2006-12-08 02:37:49 -0800 | [diff] [blame] | 85 |  | 
|  | 86 | config ARCH_HAS_ILOG2_U64 | 
|  | 87 | bool | 
| David Howells | ef55d53 | 2006-12-08 02:37:53 -0800 | [diff] [blame] | 88 | default y if 64BIT | 
| David Howells | f0d1b0b | 2006-12-08 02:37:49 -0800 | [diff] [blame] | 89 |  | 
| Deepthi Dharwar | 771dae8 | 2011-11-30 02:46:31 +0000 | [diff] [blame] | 90 | config ARCH_HAS_CPU_IDLE_WAIT | 
|  | 91 | bool | 
|  | 92 | default y | 
|  | 93 |  | 
| Akinobu Mita | e779b2f | 2006-03-26 01:39:33 -0800 | [diff] [blame] | 94 | config GENERIC_HWEIGHT | 
|  | 95 | bool | 
|  | 96 | default y | 
|  | 97 |  | 
| Anton Vorontsov | b7ce341 | 2008-04-11 23:06:36 +1000 | [diff] [blame] | 98 | config GENERIC_GPIO | 
|  | 99 | bool | 
|  | 100 | help | 
|  | 101 | Generic GPIO API support | 
|  | 102 |  | 
| Stephen Rothwell | f057eac | 2007-07-15 23:40:05 -0700 | [diff] [blame] | 103 | config ARCH_NO_VIRT_TO_BUS | 
|  | 104 | def_bool PPC64 | 
|  | 105 |  | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 106 | config PPC | 
|  | 107 | bool | 
|  | 108 | default y | 
| Stephen Rothwell | 10f85f4 | 2010-06-29 12:43:34 +1000 | [diff] [blame] | 109 | select OF | 
| Stephen Neuendorffer | e6ce132 | 2010-11-18 15:54:56 -0800 | [diff] [blame] | 110 | select OF_EARLY_FLATTREE | 
| Steven Rostedt | 2b79d69 | 2009-01-06 18:49:17 +0000 | [diff] [blame] | 111 | select HAVE_FTRACE_MCOUNT_RECORD | 
|  | 112 | select HAVE_DYNAMIC_FTRACE | 
| Steven Rostedt | 606576c | 2008-10-06 19:06:12 -0400 | [diff] [blame] | 113 | select HAVE_FUNCTION_TRACER | 
| Steven Rostedt | 60ce8f7 | 2009-02-11 20:06:43 -0500 | [diff] [blame] | 114 | select HAVE_FUNCTION_GRAPH_TRACER | 
| Michael Buesch | 7444a72 | 2008-07-25 01:46:11 -0700 | [diff] [blame] | 115 | select ARCH_WANT_OPTIONAL_GPIOLIB | 
| Sam Ravnborg | ec7748b | 2008-02-09 10:46:40 +0100 | [diff] [blame] | 116 | select HAVE_IDE | 
| Benjamin Herrenschmidt | a1f242f | 2008-07-23 21:27:08 -0700 | [diff] [blame] | 117 | select HAVE_IOREMAP_PROT | 
| Johannes Berg | 58340a0 | 2008-07-25 01:45:33 -0700 | [diff] [blame] | 118 | select HAVE_EFFICIENT_UNALIGNED_ACCESS | 
| Mathieu Desnoyers | 3f55009 | 2008-02-02 15:10:35 -0500 | [diff] [blame] | 119 | select HAVE_KPROBES | 
| Jason Wessel | 17ce452 | 2008-07-23 11:30:15 -0500 | [diff] [blame] | 120 | select HAVE_ARCH_KGDB | 
| Ananth N Mavinakayanahalli | 9edddaa | 2008-03-04 14:28:37 -0800 | [diff] [blame] | 121 | select HAVE_KRETPROBES | 
| Roland McGrath | dec2b0d | 2008-07-27 16:53:20 +1000 | [diff] [blame] | 122 | select HAVE_ARCH_TRACEHOOK | 
| Yinghai Lu | 95f72d1 | 2010-07-12 14:36:09 +1000 | [diff] [blame] | 123 | select HAVE_MEMBLOCK | 
| FUJITA Tomonori | 46bab4e | 2009-08-04 19:08:26 +0000 | [diff] [blame] | 124 | select HAVE_DMA_ATTRS | 
| FUJITA Tomonori | 80d3e8a | 2009-08-04 19:08:28 +0000 | [diff] [blame] | 125 | select HAVE_DMA_API_DEBUG | 
| Jens Axboe | b7d7a24 | 2008-06-26 11:22:13 +0200 | [diff] [blame] | 126 | select USE_GENERIC_SMP_HELPERS if SMP | 
| Steven Rostedt | 4e491d1 | 2008-05-14 23:49:44 -0400 | [diff] [blame] | 127 | select HAVE_OPROFILE | 
| Benjamin Herrenschmidt | ee6a093 | 2009-01-14 14:14:00 +0100 | [diff] [blame] | 128 | select HAVE_SYSCALL_WRAPPERS if PPC64 | 
| Paul Mackerras | c2e95c6 | 2009-06-12 21:10:41 +0000 | [diff] [blame] | 129 | select GENERIC_ATOMIC64 if PPC32 | 
| Peter Zijlstra | e360adb | 2010-10-14 14:01:34 +0800 | [diff] [blame] | 130 | select HAVE_IRQ_WORK | 
| Ingo Molnar | cdd6c48 | 2009-09-21 12:02:48 +0200 | [diff] [blame] | 131 | select HAVE_PERF_EVENTS | 
| Mahesh Salgaonkar | 359e428 | 2010-04-07 18:10:20 +1000 | [diff] [blame] | 132 | select HAVE_REGS_AND_STACK_ACCESS_API | 
| K.Prasad | 5aae8a5 | 2010-06-15 11:35:19 +0530 | [diff] [blame] | 133 | select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64 | 
| Thomas Gleixner | 2604362 | 2011-01-19 20:39:39 +0100 | [diff] [blame] | 134 | select HAVE_GENERIC_HARDIRQS | 
|  | 135 | select HAVE_SPARSE_IRQ | 
|  | 136 | select IRQ_PER_CPU | 
| Thomas Gleixner | 433c9c6 | 2011-03-25 17:04:59 +0100 | [diff] [blame] | 137 | select GENERIC_IRQ_SHOW | 
|  | 138 | select GENERIC_IRQ_SHOW_LEVEL | 
| Thomas Gleixner | e8d2c47 | 2011-10-05 02:30:51 +0000 | [diff] [blame] | 139 | select IRQ_FORCED_THREADING | 
| Peter Zijlstra | 2672391 | 2011-05-24 17:12:00 -0700 | [diff] [blame] | 140 | select HAVE_RCU_TABLE_FREE if SMP | 
| Ian Munsie | 02424d8 | 2011-02-02 17:27:24 +0000 | [diff] [blame] | 141 | select HAVE_SYSCALL_TRACEPOINTS | 
| David S. Miller | 368940d | 2011-07-21 23:26:13 -0700 | [diff] [blame] | 142 | select HAVE_BPF_JIT if (PPC64 && NET) | 
| Michael Ellerman | ac5f89c | 2011-06-29 19:16:59 +0000 | [diff] [blame] | 143 | select HAVE_ARCH_JUMP_LABEL | 
| Huang Ying | df013ff | 2011-07-13 13:14:22 +0800 | [diff] [blame] | 144 | select ARCH_HAVE_NMI_SAFE_CMPXCHG | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 145 |  | 
|  | 146 | config EARLY_PRINTK | 
|  | 147 | bool | 
| Benjamin Herrenschmidt | 51d3082 | 2005-11-23 17:57:25 +1100 | [diff] [blame] | 148 | default y | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 149 |  | 
|  | 150 | config COMPAT | 
|  | 151 | bool | 
|  | 152 | default y if PPC64 | 
| Roland McGrath | 01e31db | 2008-01-02 17:03:11 -0800 | [diff] [blame] | 153 | select COMPAT_BINFMT_ELF | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 154 |  | 
|  | 155 | config SYSVIPC_COMPAT | 
|  | 156 | bool | 
|  | 157 | depends on COMPAT && SYSVIPC | 
|  | 158 | default y | 
|  | 159 |  | 
|  | 160 | # All PPC32s use generic nvram driver through ppc_md | 
|  | 161 | config GENERIC_NVRAM | 
|  | 162 | bool | 
|  | 163 | default y if PPC32 | 
|  | 164 |  | 
| Ingo Molnar | ae1e913 | 2008-11-11 09:05:16 +0100 | [diff] [blame] | 165 | config SCHED_OMIT_FRAME_POINTER | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 166 | bool | 
|  | 167 | default y | 
|  | 168 |  | 
|  | 169 | config ARCH_MAY_HAVE_PC_FDC | 
|  | 170 | bool | 
| Stephen Rothwell | bed5927 | 2007-03-04 17:04:44 +1100 | [diff] [blame] | 171 | default !PPC_PSERIES || PCI | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 172 |  | 
| Kumar Gala | 08264cb | 2006-01-10 21:43:56 -0600 | [diff] [blame] | 173 | config PPC_OF | 
|  | 174 | def_bool y | 
|  | 175 |  | 
|  | 176 | config PPC_UDBG_16550 | 
|  | 177 | bool | 
|  | 178 | default n | 
|  | 179 |  | 
| Kumar Gala | 08264cb | 2006-01-10 21:43:56 -0600 | [diff] [blame] | 180 | config GENERIC_TBSYNC | 
|  | 181 | bool | 
|  | 182 | default y if PPC32 && SMP | 
|  | 183 | default n | 
|  | 184 |  | 
| Al Viro | e65e1fc | 2006-09-12 03:04:40 -0400 | [diff] [blame] | 185 | config AUDIT_ARCH | 
|  | 186 | bool | 
|  | 187 | default y | 
|  | 188 |  | 
| Jeremy Fitzhardinge | 73c9cea | 2006-12-08 03:30:41 -0800 | [diff] [blame] | 189 | config GENERIC_BUG | 
|  | 190 | bool | 
|  | 191 | default y | 
|  | 192 | depends on BUG | 
|  | 193 |  | 
| Johannes Berg | b302887 | 2007-03-20 05:18:02 +1100 | [diff] [blame] | 194 | config SYS_SUPPORTS_APM_EMULATION | 
| Kumar Gala | 58da10b | 2007-05-23 09:51:46 -0500 | [diff] [blame] | 195 | default y if PMAC_APM_EMU | 
| Johannes Berg | b302887 | 2007-03-20 05:18:02 +1100 | [diff] [blame] | 196 | bool | 
|  | 197 |  | 
| David Gibson | 6c5b59b | 2011-04-14 18:29:16 +0000 | [diff] [blame] | 198 | config EPAPR_BOOT | 
|  | 199 | bool | 
|  | 200 | help | 
|  | 201 | Used to allow a board to specify it wants an ePAPR compliant wrapper. | 
|  | 202 | default n | 
|  | 203 |  | 
| Kumar Gala | f4fc4a5 | 2006-01-16 10:53:22 -0600 | [diff] [blame] | 204 | config DEFAULT_UIMAGE | 
|  | 205 | bool | 
|  | 206 | help | 
|  | 207 | Used to allow a board to specify it wants a uImage built by default | 
|  | 208 | default n | 
|  | 209 |  | 
| Scott Wood | b09c164 | 2008-01-17 16:31:40 -0600 | [diff] [blame] | 210 | config REDBOOT | 
|  | 211 | bool | 
|  | 212 |  | 
| Johannes Berg | 801e406 | 2007-12-08 02:12:39 +0100 | [diff] [blame] | 213 | config ARCH_HIBERNATION_POSSIBLE | 
|  | 214 | bool | 
| Johannes Berg | 543b9fd | 2007-05-03 22:31:38 +1000 | [diff] [blame] | 215 | default y | 
|  | 216 |  | 
| Johannes Berg | f4cb570 | 2007-12-08 02:14:00 +0100 | [diff] [blame] | 217 | config ARCH_SUSPEND_POSSIBLE | 
|  | 218 | def_bool y | 
| Anton Vorontsov | 4ffd695 | 2009-09-16 01:43:57 +0400 | [diff] [blame] | 219 | depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \ | 
| Kumar Gala | e5462d1 | 2011-04-08 04:20:54 -0500 | [diff] [blame] | 220 | (PPC_85xx && !SMP) || PPC_86xx || PPC_PSERIES || 44x || 40x | 
| Johannes Berg | f4cb570 | 2007-12-08 02:14:00 +0100 | [diff] [blame] | 221 |  | 
| Benjamin Herrenschmidt | 4c75a6f | 2006-11-11 17:24:53 +1100 | [diff] [blame] | 222 | config PPC_DCR_NATIVE | 
|  | 223 | bool | 
|  | 224 | default n | 
|  | 225 |  | 
|  | 226 | config PPC_DCR_MMIO | 
|  | 227 | bool | 
|  | 228 | default n | 
|  | 229 |  | 
|  | 230 | config PPC_DCR | 
|  | 231 | bool | 
|  | 232 | depends on PPC_DCR_NATIVE || PPC_DCR_MMIO | 
|  | 233 | default y | 
|  | 234 |  | 
| Benjamin Herrenschmidt | 4c9d280 | 2006-11-11 17:25:08 +1100 | [diff] [blame] | 235 | config PPC_OF_PLATFORM_PCI | 
|  | 236 | bool | 
| Stephen Rothwell | 373a6da | 2007-12-21 15:37:07 +1100 | [diff] [blame] | 237 | depends on PCI | 
| Benjamin Herrenschmidt | 4c9d280 | 2006-11-11 17:25:08 +1100 | [diff] [blame] | 238 | depends on PPC64 # not supported on 32 bits yet | 
|  | 239 | default n | 
|  | 240 |  | 
| Akinobu Mita | 6a11f75 | 2009-03-31 15:23:17 -0700 | [diff] [blame] | 241 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC | 
|  | 242 | def_bool y | 
|  | 243 |  | 
| Dave Kleikamp | 172ae2e | 2010-02-08 11:50:57 +0000 | [diff] [blame] | 244 | config PPC_ADV_DEBUG_REGS | 
|  | 245 | bool | 
|  | 246 | depends on 40x || BOOKE | 
|  | 247 | default y | 
|  | 248 |  | 
|  | 249 | config PPC_ADV_DEBUG_IACS | 
|  | 250 | int | 
|  | 251 | depends on PPC_ADV_DEBUG_REGS | 
|  | 252 | default 4 if 44x | 
|  | 253 | default 2 | 
|  | 254 |  | 
|  | 255 | config PPC_ADV_DEBUG_DACS | 
|  | 256 | int | 
|  | 257 | depends on PPC_ADV_DEBUG_REGS | 
|  | 258 | default 2 | 
|  | 259 |  | 
|  | 260 | config PPC_ADV_DEBUG_DVCS | 
|  | 261 | int | 
|  | 262 | depends on PPC_ADV_DEBUG_REGS | 
|  | 263 | default 2 if 44x | 
|  | 264 | default 0 | 
|  | 265 |  | 
|  | 266 | config PPC_ADV_DEBUG_DAC_RANGE | 
|  | 267 | bool | 
|  | 268 | depends on PPC_ADV_DEBUG_REGS && 44x | 
|  | 269 | default y | 
|  | 270 |  | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 271 | source "init/Kconfig" | 
|  | 272 |  | 
| Matt Helsley | dc52ddc | 2008-10-18 20:27:21 -0700 | [diff] [blame] | 273 | source "kernel/Kconfig.freezer" | 
|  | 274 |  | 
| Benjamin Herrenschmidt | a2d2e1e | 2007-12-21 15:39:24 +1100 | [diff] [blame] | 275 | source "arch/powerpc/sysdev/Kconfig" | 
| Kumar Gala | 4330f5d | 2007-03-16 09:32:17 -0500 | [diff] [blame] | 276 | source "arch/powerpc/platforms/Kconfig" | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 277 |  | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 278 | menu "Kernel options" | 
|  | 279 |  | 
|  | 280 | config HIGHMEM | 
|  | 281 | bool "High memory support" | 
|  | 282 | depends on PPC32 | 
|  | 283 |  | 
| Tony Breeds | 1ad7499 | 2007-09-21 13:26:03 +1000 | [diff] [blame] | 284 | source kernel/time/Kconfig | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 285 | source kernel/Kconfig.hz | 
|  | 286 | source kernel/Kconfig.preempt | 
|  | 287 | source "fs/Kconfig.binfmt" | 
|  | 288 |  | 
| Mel Gorman | ba72cb8 | 2007-11-28 16:21:13 -0800 | [diff] [blame] | 289 | config HUGETLB_PAGE_SIZE_VARIABLE | 
|  | 290 | bool | 
|  | 291 | depends on HUGETLB_PAGE | 
|  | 292 | default y | 
|  | 293 |  | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 294 | config MATH_EMULATION | 
|  | 295 | bool "Math emulation" | 
| Kumar Gala | 4d52719 | 2007-01-26 00:23:34 -0600 | [diff] [blame] | 296 | depends on 4xx || 8xx || E200 || PPC_MPC832x || E500 | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 297 | ---help--- | 
|  | 298 | Some PowerPC chips designed for embedded applications do not have | 
|  | 299 | a floating-point unit and therefore do not implement the | 
|  | 300 | floating-point instructions in the PowerPC instruction set.  If you | 
|  | 301 | say Y here, the kernel will include code to emulate a floating-point | 
|  | 302 | unit, which will allow programs that use floating-point | 
|  | 303 | instructions to run. | 
|  | 304 |  | 
| Scott Wood | 5dd57a1 | 2007-09-18 15:29:35 -0500 | [diff] [blame] | 305 | config 8XX_MINIMAL_FPEMU | 
|  | 306 | bool "Minimal math emulation for 8xx" | 
|  | 307 | depends on 8xx && !MATH_EMULATION | 
|  | 308 | help | 
|  | 309 | Older arch/ppc kernels still emulated a few floating point | 
|  | 310 | instructions such as load and store, even when full math | 
|  | 311 | emulation is disabled.  Say "Y" here if you want to preserve | 
|  | 312 | this behavior. | 
|  | 313 |  | 
|  | 314 | It is recommended that you build a soft-float userspace instead. | 
|  | 315 |  | 
| FUJITA Tomonori | fb3475e | 2008-02-04 22:28:08 -0800 | [diff] [blame] | 316 | config IOMMU_HELPER | 
|  | 317 | def_bool PPC64 | 
|  | 318 |  | 
| Becky Bruce | ec3cf2e | 2009-05-14 12:42:28 +0000 | [diff] [blame] | 319 | config SWIOTLB | 
|  | 320 | bool "SWIOTLB support" | 
|  | 321 | default n | 
|  | 322 | select IOMMU_HELPER | 
|  | 323 | ---help--- | 
|  | 324 | Support for IO bounce buffering for systems without an IOMMU. | 
|  | 325 | This allows us to DMA to the full physical address space on | 
|  | 326 | platforms where the size of a physical address is larger | 
|  | 327 | than the bus address.  Not all platforms support this. | 
|  | 328 |  | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 329 | config HOTPLUG_CPU | 
|  | 330 | bool "Support for enabling/disabling CPUs" | 
| Benjamin Herrenschmidt | 344eb01 | 2011-09-19 17:44:54 +0000 | [diff] [blame] | 331 | depends on SMP && HOTPLUG && EXPERIMENTAL && (PPC_PSERIES || PPC_PMAC || PPC_POWERNV) | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 332 | ---help--- | 
|  | 333 | Say Y here to be able to disable and re-enable individual | 
|  | 334 | CPUs at runtime on SMP machines. | 
|  | 335 |  | 
|  | 336 | Say N if you are unsure. | 
|  | 337 |  | 
| Nathan Fontenot | 12633e8 | 2009-11-25 17:23:25 +0000 | [diff] [blame] | 338 | config ARCH_CPU_PROBE_RELEASE | 
|  | 339 | def_bool y | 
|  | 340 | depends on HOTPLUG_CPU | 
|  | 341 |  | 
| Yasunori Goto | cc57637 | 2006-06-29 02:24:27 -0700 | [diff] [blame] | 342 | config ARCH_ENABLE_MEMORY_HOTPLUG | 
|  | 343 | def_bool y | 
|  | 344 |  | 
| Badari Pulavarty | a99824f | 2008-02-05 00:10:18 -0800 | [diff] [blame] | 345 | config ARCH_HAS_WALK_MEMORY | 
|  | 346 | def_bool y | 
|  | 347 |  | 
| Badari Pulavarty | 1482471 | 2008-02-05 00:10:17 -0800 | [diff] [blame] | 348 | config ARCH_ENABLE_MEMORY_HOTREMOVE | 
|  | 349 | def_bool y | 
|  | 350 |  | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 351 | config KEXEC | 
|  | 352 | bool "kexec system call (EXPERIMENTAL)" | 
| Suzuki Poulose | bbc24a2 | 2011-11-14 16:43:50 +0000 | [diff] [blame] | 353 | depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP && !PPC_47x)) && EXPERIMENTAL | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 354 | help | 
|  | 355 | kexec is a system call that implements the ability to shutdown your | 
|  | 356 | current kernel, and to start another kernel.  It is like a reboot | 
| Matt LaPlante | 1f1332f | 2006-06-29 01:32:47 -0400 | [diff] [blame] | 357 | but it is independent of the system firmware.   And like a reboot | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 358 | you can start any kernel with it, not just Linux. | 
|  | 359 |  | 
| Matt LaPlante | 1f1332f | 2006-06-29 01:32:47 -0400 | [diff] [blame] | 360 | The name comes from the similarity to the exec system call. | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 361 |  | 
|  | 362 | It is an ongoing process to be certain the hardware in a machine | 
|  | 363 | is properly shutdown, so do not be surprised if this code does not | 
|  | 364 | initially work for you.  It may help to enable device hotplugging | 
|  | 365 | support.  As of this writing the exact hardware interface is | 
|  | 366 | strongly in flux, so no good recommendation can be made. | 
|  | 367 |  | 
| Haren Myneni | e8625d46 | 2006-01-14 13:48:25 -0800 | [diff] [blame] | 368 | config CRASH_DUMP | 
| Bernhard Walle | 3420b5d | 2008-06-27 03:02:15 +1000 | [diff] [blame] | 369 | bool "Build a kdump crash kernel" | 
| Matthew McClintock | f933a41 | 2010-07-21 16:14:53 -0500 | [diff] [blame] | 370 | depends on PPC64 || 6xx || FSL_BOOKE | 
| Suzuki Poulose | 0f890c8 | 2011-12-14 22:57:15 +0000 | [diff] [blame] | 371 | select RELOCATABLE if PPC64 | 
|  | 372 | select DYNAMIC_MEMSTART if FSL_BOOKE | 
| Haren Myneni | e8625d46 | 2006-01-14 13:48:25 -0800 | [diff] [blame] | 373 | help | 
|  | 374 | Build a kernel suitable for use as a kdump capture kernel. | 
| Mohan Kumar M | 54622f1 | 2008-10-21 17:38:10 +0000 | [diff] [blame] | 375 | The same kernel binary can be used as production kernel and dump | 
|  | 376 | capture kernel. | 
| Haren Myneni | e8625d46 | 2006-01-14 13:48:25 -0800 | [diff] [blame] | 377 |  | 
| Manish Ahuja | 242f271 | 2008-03-22 10:50:50 +1100 | [diff] [blame] | 378 | config PHYP_DUMP | 
|  | 379 | bool "Hypervisor-assisted dump (EXPERIMENTAL)" | 
|  | 380 | depends on PPC_PSERIES && EXPERIMENTAL | 
|  | 381 | help | 
|  | 382 | Hypervisor-assisted dump is meant to be a kdump replacement | 
|  | 383 | offering robustness and speed not possible without system | 
| Matt LaPlante | 692105b | 2009-01-26 11:12:25 +0100 | [diff] [blame] | 384 | hypervisor assistance. | 
| Manish Ahuja | 242f271 | 2008-03-22 10:50:50 +1100 | [diff] [blame] | 385 |  | 
|  | 386 | If unsure, say "N" | 
|  | 387 |  | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 388 | config IRQ_ALL_CPUS | 
|  | 389 | bool "Distribute interrupts on all CPUs by default" | 
|  | 390 | depends on SMP && !MV64360 | 
|  | 391 | help | 
|  | 392 | This option gives the kernel permission to distribute IRQs across | 
|  | 393 | multiple CPUs.  Saying N here will route all IRQs to the first | 
|  | 394 | CPU.  Generally saying Y is safe, although some problems have been | 
|  | 395 | reported with SMP Power Macintoshes with this option enabled. | 
|  | 396 |  | 
| Andy Whitcroft | ffa27b6 | 2005-10-28 17:46:58 -0700 | [diff] [blame] | 397 | config NUMA | 
|  | 398 | bool "NUMA support" | 
|  | 399 | depends on PPC64 | 
|  | 400 | default y if SMP && PPC_PSERIES | 
|  | 401 |  | 
| Yasunori Goto | c80d79d | 2006-04-10 22:53:53 -0700 | [diff] [blame] | 402 | config NODES_SHIFT | 
|  | 403 | int | 
| Anton Blanchard | ea55bf2 | 2009-09-21 19:56:43 +0000 | [diff] [blame] | 404 | default "8" if PPC64 | 
| Yasunori Goto | c80d79d | 2006-04-10 22:53:53 -0700 | [diff] [blame] | 405 | default "4" | 
|  | 406 | depends on NEED_MULTIPLE_NODES | 
|  | 407 |  | 
| Anton Blanchard | ea55bf2 | 2009-09-21 19:56:43 +0000 | [diff] [blame] | 408 | config MAX_ACTIVE_REGIONS | 
|  | 409 | int | 
|  | 410 | default "256" if PPC64 | 
|  | 411 | default "32" | 
|  | 412 |  | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 413 | config ARCH_SELECT_MEMORY_MODEL | 
|  | 414 | def_bool y | 
|  | 415 | depends on PPC64 | 
|  | 416 |  | 
|  | 417 | config ARCH_FLATMEM_ENABLE | 
| Andy Whitcroft | 9100b20 | 2005-11-29 19:20:55 +0000 | [diff] [blame] | 418 | def_bool y | 
|  | 419 | depends on (PPC64 && !NUMA) || PPC32 | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 420 |  | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 421 | config ARCH_SPARSEMEM_ENABLE | 
|  | 422 | def_bool y | 
| Andy Whitcroft | 9100b20 | 2005-11-29 19:20:55 +0000 | [diff] [blame] | 423 | depends on PPC64 | 
| Andy Whitcroft | d29eff7 | 2007-10-16 01:24:17 -0700 | [diff] [blame] | 424 | select SPARSEMEM_VMEMMAP_ENABLE | 
| Anton Blanchard | 45fb6ce | 2005-11-11 14:22:35 +1100 | [diff] [blame] | 425 |  | 
|  | 426 | config ARCH_SPARSEMEM_DEFAULT | 
|  | 427 | def_bool y | 
| Benjamin Herrenschmidt | 78bde53 | 2007-02-13 11:46:06 +1100 | [diff] [blame] | 428 | depends on (SMP && PPC_PSERIES) || PPC_PS3 | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 429 |  | 
| Mel Gorman | c67c3cb | 2006-09-27 01:49:49 -0700 | [diff] [blame] | 430 | config ARCH_POPULATES_NODE_MAP | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 431 | def_bool y | 
| Mel Gorman | c67c3cb | 2006-09-27 01:49:49 -0700 | [diff] [blame] | 432 |  | 
| Benjamin Herrenschmidt | 5a1eb5c | 2009-10-30 15:03:54 +1100 | [diff] [blame] | 433 | config SYS_SUPPORTS_HUGETLBFS | 
| Becky Bruce | 41151e7 | 2011-06-28 09:54:48 +0000 | [diff] [blame] | 434 | bool | 
| Benjamin Herrenschmidt | 5a1eb5c | 2009-10-30 15:03:54 +1100 | [diff] [blame] | 435 |  | 
| Mel Gorman | c67c3cb | 2006-09-27 01:49:49 -0700 | [diff] [blame] | 436 | source "mm/Kconfig" | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 437 |  | 
| Mike Kravetz | 7e9191d | 2005-11-07 09:39:48 -0800 | [diff] [blame] | 438 | config ARCH_MEMORY_PROBE | 
|  | 439 | def_bool y | 
|  | 440 | depends on MEMORY_HOTPLUG | 
|  | 441 |  | 
| Andy Whitcroft | 7516795 | 2006-10-21 10:24:14 -0700 | [diff] [blame] | 442 | # Some NUMA nodes have memory ranges that span | 
|  | 443 | # other nodes.  Even though a pfn is valid and | 
|  | 444 | # between a node's start and end pfns, it may not | 
|  | 445 | # reside on that node.  See memmap_init_zone() | 
|  | 446 | # for details. | 
|  | 447 | config NODES_SPAN_OTHER_NODES | 
|  | 448 | def_bool y | 
|  | 449 | depends on NEED_MULTIPLE_NODES | 
|  | 450 |  | 
| Benjamin Herrenschmidt | 16c2d47 | 2007-05-08 16:27:28 +1000 | [diff] [blame] | 451 | config PPC_HAS_HASH_64K | 
|  | 452 | bool | 
|  | 453 | depends on PPC64 | 
|  | 454 | default n | 
|  | 455 |  | 
| Yuri Tikhonov | e124012 | 2009-01-29 01:40:44 +0000 | [diff] [blame] | 456 | config STDBINUTILS | 
|  | 457 | bool "Using standard binutils settings" | 
|  | 458 | depends on 44x | 
|  | 459 | default y | 
|  | 460 | help | 
|  | 461 | Turning this option off allows you to select 256KB PAGE_SIZE on 44x. | 
|  | 462 | Note, that kernel will be able to run only those applications, | 
|  | 463 | which had been compiled using binutils later than 2.17.50.0.3 with | 
|  | 464 | '-zmax-page-size' set to 256K (the default is 64K). Or, if using | 
|  | 465 | the older binutils, you can patch them with a trivial patch, which | 
|  | 466 | changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000. | 
|  | 467 |  | 
| Ilya Yanok | ca9153a | 2008-12-11 04:55:41 +0300 | [diff] [blame] | 468 | choice | 
|  | 469 | prompt "Page size" | 
|  | 470 | default PPC_4K_PAGES | 
| Benjamin Herrenschmidt | 3c726f8 | 2005-11-07 11:06:55 +1100 | [diff] [blame] | 471 | help | 
| Ilya Yanok | ca9153a | 2008-12-11 04:55:41 +0300 | [diff] [blame] | 472 | Select the kernel logical page size. Increasing the page size | 
|  | 473 | will reduce software overhead at each page boundary, allow | 
|  | 474 | hardware prefetch mechanisms to be more effective, and allow | 
|  | 475 | larger dma transfers increasing IO efficiency and reducing | 
|  | 476 | overhead. However the utilization of memory will increase. | 
|  | 477 | For example, each cached file will using a multiple of the | 
|  | 478 | page size to hold its contents and the difference between the | 
|  | 479 | end of file and the end of page is wasted. | 
|  | 480 |  | 
|  | 481 | Some dedicated systems, such as software raid serving with | 
|  | 482 | accelerated calculations, have shown significant increases. | 
|  | 483 |  | 
|  | 484 | If you configure a 64 bit kernel for 64k pages but the | 
|  | 485 | processor does not support them, then the kernel will simulate | 
|  | 486 | them with 4k pages, loading them on demand, but with the | 
|  | 487 | reduced software overhead and larger internal fragmentation. | 
|  | 488 | For the 32 bit kernel, a large page option will not be offered | 
|  | 489 | unless it is supported by the configured processor. | 
|  | 490 |  | 
|  | 491 | If unsure, choose 4K_PAGES. | 
|  | 492 |  | 
|  | 493 | config PPC_4K_PAGES | 
|  | 494 | bool "4k page size" | 
|  | 495 |  | 
|  | 496 | config PPC_16K_PAGES | 
|  | 497 | bool "16k page size" if 44x | 
|  | 498 |  | 
|  | 499 | config PPC_64K_PAGES | 
| Benjamin Herrenschmidt | 2d27cfd | 2009-07-23 23:15:59 +0000 | [diff] [blame] | 500 | 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] | 501 | select PPC_HAS_HASH_64K if PPC_STD_MMU_64 | 
|  | 502 |  | 
| Yuri Tikhonov | e124012 | 2009-01-29 01:40:44 +0000 | [diff] [blame] | 503 | config PPC_256K_PAGES | 
|  | 504 | bool "256k page size" if 44x | 
| Hugh Dickins | adf213c | 2009-04-06 11:01:15 +0000 | [diff] [blame] | 505 | depends on !STDBINUTILS | 
| Yuri Tikhonov | e124012 | 2009-01-29 01:40:44 +0000 | [diff] [blame] | 506 | help | 
|  | 507 | Make the page size 256k. | 
|  | 508 |  | 
|  | 509 | As the ELF standard only requires alignment to support page | 
|  | 510 | sizes up to 64k, you will need to compile all of your user | 
|  | 511 | space applications with a non-standard binutils settings | 
|  | 512 | (see the STDBINUTILS description for details). | 
|  | 513 |  | 
|  | 514 | Say N unless you know what you are doing. | 
|  | 515 |  | 
| Ilya Yanok | ca9153a | 2008-12-11 04:55:41 +0300 | [diff] [blame] | 516 | endchoice | 
| Benjamin Herrenschmidt | 3c726f8 | 2005-11-07 11:06:55 +1100 | [diff] [blame] | 517 |  | 
| Stephen Rothwell | 53bcddb | 2008-04-11 11:11:56 +1000 | [diff] [blame] | 518 | config FORCE_MAX_ZONEORDER | 
|  | 519 | int "Maximum zone order" | 
| Benjamin Herrenschmidt | 066c4b8 | 2009-07-21 15:25:53 +0000 | [diff] [blame] | 520 | range 9 64 if PPC64 && PPC_64K_PAGES | 
|  | 521 | default "9" if PPC64 && PPC_64K_PAGES | 
|  | 522 | range 13 64 if PPC64 && !PPC_64K_PAGES | 
|  | 523 | default "13" if PPC64 && !PPC_64K_PAGES | 
|  | 524 | range 9 64 if PPC32 && PPC_16K_PAGES | 
|  | 525 | default "9" if PPC32 && PPC_16K_PAGES | 
|  | 526 | range 7 64 if PPC32 && PPC_64K_PAGES | 
|  | 527 | default "7" if PPC32 && PPC_64K_PAGES | 
|  | 528 | range 5 64 if PPC32 && PPC_256K_PAGES | 
|  | 529 | default "5" if PPC32 && PPC_256K_PAGES | 
| Johannes Berg | ebe40c5 | 2008-09-24 04:29:08 +0000 | [diff] [blame] | 530 | range 11 64 | 
| Stephen Rothwell | 53bcddb | 2008-04-11 11:11:56 +1000 | [diff] [blame] | 531 | default "11" | 
|  | 532 | help | 
|  | 533 | The kernel memory allocator divides physically contiguous memory | 
|  | 534 | blocks into "zones", where each zone is a power of two number of | 
|  | 535 | pages.  This option selects the largest power of two that the kernel | 
|  | 536 | keeps in the memory allocator.  If you need to allocate very large | 
|  | 537 | blocks of physically contiguous memory, then you may need to | 
|  | 538 | increase this value. | 
|  | 539 |  | 
|  | 540 | This config option is actually maximum order plus one. For example, | 
|  | 541 | a value of 11 means that the largest free memory block is 2^10 pages. | 
|  | 542 |  | 
|  | 543 | The page size is not necessarily 4KB.  For example, on 64-bit | 
|  | 544 | systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES.  Keep | 
|  | 545 | this in mind when choosing a value for this option. | 
|  | 546 |  | 
| Paul Mackerras | fa28237 | 2008-01-24 08:35:13 +1100 | [diff] [blame] | 547 | config PPC_SUBPAGE_PROT | 
|  | 548 | bool "Support setting protections for 4k subpages" | 
| Ilya Yanok | ca9153a | 2008-12-11 04:55:41 +0300 | [diff] [blame] | 549 | depends on PPC_STD_MMU_64 && PPC_64K_PAGES | 
| Paul Mackerras | fa28237 | 2008-01-24 08:35:13 +1100 | [diff] [blame] | 550 | help | 
|  | 551 | This option adds support for a system call to allow user programs | 
|  | 552 | to set access permissions (read/write, readonly, or no access) | 
|  | 553 | on the 4k subpages of each 64k page. | 
|  | 554 |  | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 555 | config SCHED_SMT | 
|  | 556 | bool "SMT (Hyperthreading) scheduler support" | 
|  | 557 | depends on PPC64 && SMP | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 558 | help | 
|  | 559 | SMT scheduler support improves the CPU scheduler's decision making | 
|  | 560 | when dealing with POWER5 cpus at a cost of slightly increased | 
|  | 561 | overhead in some places. If unsure say N here. | 
|  | 562 |  | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 563 | config CMDLINE_BOOL | 
|  | 564 | bool "Default bootloader kernel arguments" | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 565 |  | 
|  | 566 | config CMDLINE | 
|  | 567 | string "Initial kernel command string" | 
|  | 568 | depends on CMDLINE_BOOL | 
|  | 569 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" | 
|  | 570 | help | 
|  | 571 | On some platforms, there is currently no way for the boot loader to | 
|  | 572 | pass arguments to the kernel. For these platforms, you can supply | 
|  | 573 | some command-line options at build time by entering them here.  In | 
|  | 574 | most cases you will need to specify the root device here. | 
|  | 575 |  | 
| Grant Likely | c356aa4 | 2008-07-09 09:41:52 -0600 | [diff] [blame] | 576 | config EXTRA_TARGETS | 
|  | 577 | string "Additional default image types" | 
|  | 578 | help | 
|  | 579 | List additional targets to be built by the bootwrapper here (separated | 
|  | 580 | by spaces).  This is useful for targets that depend of device tree | 
|  | 581 | files in the .dts directory. | 
|  | 582 |  | 
|  | 583 | Targets in this list will be build as part of the default build | 
|  | 584 | target, or when the user does a 'make zImage' or a | 
|  | 585 | 'make zImage.initrd'. | 
|  | 586 |  | 
|  | 587 | If unsure, leave blank | 
|  | 588 |  | 
| Johannes Berg | b28f508 | 2008-01-15 23:17:00 -0500 | [diff] [blame] | 589 | config ARCH_WANTS_FREEZER_CONTROL | 
|  | 590 | def_bool y | 
|  | 591 | depends on ADB_PMU | 
|  | 592 |  | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 593 | source kernel/power/Kconfig | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 594 |  | 
|  | 595 | config SECCOMP | 
|  | 596 | bool "Enable seccomp to safely compute untrusted bytecode" | 
|  | 597 | depends on PROC_FS | 
|  | 598 | default y | 
|  | 599 | help | 
|  | 600 | This kernel feature is useful for number crunching applications | 
|  | 601 | that may need to compute untrusted bytecode during their | 
|  | 602 | execution. By using pipes or other transports made available to | 
|  | 603 | the process as file descriptors supporting the read/write | 
|  | 604 | syscalls, it's possible to isolate those applications in | 
|  | 605 | their own address space using seccomp. Once seccomp is | 
|  | 606 | enabled via /proc/<pid>/seccomp, it cannot be disabled | 
|  | 607 | and the task is only allowed to execute a few safe syscalls | 
|  | 608 | defined by each seccomp mode. | 
|  | 609 |  | 
|  | 610 | If unsure, say Y. Only embedded should say N here. | 
|  | 611 |  | 
|  | 612 | endmenu | 
|  | 613 |  | 
|  | 614 | config ISA_DMA_API | 
|  | 615 | bool | 
| Stephen Rothwell | 373a6da | 2007-12-21 15:37:07 +1100 | [diff] [blame] | 616 | default !PPC_ISERIES || PCI | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 617 |  | 
|  | 618 | menu "Bus options" | 
|  | 619 |  | 
|  | 620 | config ISA | 
|  | 621 | bool "Support for ISA-bus hardware" | 
|  | 622 | depends on PPC_PREP || PPC_CHRP | 
| Paul Mackerras | f9bd170 | 2005-10-26 16:47:42 +1000 | [diff] [blame] | 623 | select PPC_I8259 | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 624 | help | 
|  | 625 | Find out whether you have ISA slots on your motherboard.  ISA is the | 
|  | 626 | name of a bus system, i.e. the way the CPU talks to the other stuff | 
|  | 627 | inside your box.  If you have an Apple machine, say N here; if you | 
|  | 628 | have an IBM RS/6000 or pSeries machine or a PReP machine, say Y.  If | 
|  | 629 | you have an embedded board, consult your board documentation. | 
|  | 630 |  | 
| Christoph Lameter | 5ac6da6 | 2007-02-10 01:43:14 -0800 | [diff] [blame] | 631 | config ZONE_DMA | 
|  | 632 | bool | 
|  | 633 | default y | 
|  | 634 |  | 
| FUJITA Tomonori | af407c6 | 2010-03-10 15:23:27 -0800 | [diff] [blame] | 635 | config NEED_DMA_MAP_STATE | 
|  | 636 | def_bool (PPC64 || NOT_COHERENT_CACHE) | 
|  | 637 |  | 
| FUJITA Tomonori | e32205e | 2010-05-26 14:44:33 -0700 | [diff] [blame] | 638 | config NEED_SG_DMA_LENGTH | 
|  | 639 | def_bool y | 
|  | 640 |  | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 641 | config GENERIC_ISA_DMA | 
|  | 642 | bool | 
| Anton Vorontsov | 1927445 | 2010-07-15 07:38:16 +0000 | [diff] [blame] | 643 | depends on ISA_DMA_API | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 644 | default y | 
|  | 645 |  | 
| Paul Mackerras | 25635c7 | 2005-10-26 16:36:55 +1000 | [diff] [blame] | 646 | config PPC_INDIRECT_PCI | 
|  | 647 | bool | 
|  | 648 | depends on PCI | 
| Becky Bruce | 63dafe5 | 2006-01-14 16:57:39 -0600 | [diff] [blame] | 649 | default y if 40x || 44x | 
| Paul Mackerras | 25635c7 | 2005-10-26 16:36:55 +1000 | [diff] [blame] | 650 | default n | 
|  | 651 |  | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 652 | config EISA | 
|  | 653 | bool | 
|  | 654 |  | 
|  | 655 | config SBUS | 
|  | 656 | bool | 
|  | 657 |  | 
| Kumar Gala | 08264cb | 2006-01-10 21:43:56 -0600 | [diff] [blame] | 658 | config FSL_SOC | 
|  | 659 | bool | 
| holt@sgi.com | b489da8 | 2011-08-16 17:32:24 +0000 | [diff] [blame] | 660 | select HAVE_CAN_FLEXCAN if NET && CAN | 
|  | 661 | select PPC_CLOCK if CAN_FLEXCAN | 
| Kumar Gala | 08264cb | 2006-01-10 21:43:56 -0600 | [diff] [blame] | 662 |  | 
| Roy Zang | 55c4499 | 2007-07-10 18:44:34 +0800 | [diff] [blame] | 663 | config FSL_PCI | 
|  | 664 | bool | 
|  | 665 | select PPC_INDIRECT_PCI | 
| Kumar Gala | d083911 | 2009-01-28 13:25:29 -0600 | [diff] [blame] | 666 | select PCI_QUIRKS | 
| Roy Zang | 55c4499 | 2007-07-10 18:44:34 +0800 | [diff] [blame] | 667 |  | 
| Anton Vorontsov | 4ffd695 | 2009-09-16 01:43:57 +0400 | [diff] [blame] | 668 | config FSL_PMC | 
|  | 669 | bool | 
|  | 670 | default y | 
|  | 671 | depends on SUSPEND && (PPC_85xx || PPC_86xx) | 
|  | 672 | help | 
|  | 673 | Freescale MPC85xx/MPC86xx power management controller support | 
|  | 674 | (suspend/resume). For MPC83xx see platforms/83xx/suspend.c | 
|  | 675 |  | 
| Victor Gallardo | d164f6d | 2010-10-08 10:25:27 +0000 | [diff] [blame] | 676 | config PPC4xx_CPM | 
|  | 677 | bool | 
|  | 678 | default y | 
|  | 679 | depends on SUSPEND && (44x || 40x) | 
|  | 680 | help | 
|  | 681 | PPC4xx Clock Power Management (CPM) support (suspend/resume). | 
|  | 682 | It also enables support for two different idle states (idle-wait | 
|  | 683 | and idle-doze). | 
|  | 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 | 4a3ecc6 | 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 |  | 
| Jake Moilanen | bb53bb3 | 2006-06-07 16:05:46 -0500 | [diff] [blame] | 750 | source "drivers/pci/pcie/Kconfig" | 
|  | 751 |  | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 752 | source "drivers/pci/Kconfig" | 
|  | 753 |  | 
|  | 754 | source "drivers/pcmcia/Kconfig" | 
|  | 755 |  | 
|  | 756 | source "drivers/pci/hotplug/Kconfig" | 
|  | 757 |  | 
| Zhang Wei | f1f389d | 2008-04-18 13:33:39 -0700 | [diff] [blame] | 758 | config HAS_RAPIDIO | 
|  | 759 | bool | 
|  | 760 | default n | 
|  | 761 |  | 
|  | 762 | config RAPIDIO | 
|  | 763 | bool "RapidIO support" | 
| Alexandre Bounine | 388b78a | 2011-03-23 16:43:03 -0700 | [diff] [blame] | 764 | depends on HAS_RAPIDIO || PCI | 
| Zhang Wei | f1f389d | 2008-04-18 13:33:39 -0700 | [diff] [blame] | 765 | help | 
|  | 766 | If you say Y here, the kernel will include drivers and | 
|  | 767 | infrastructure code to support RapidIO interconnect devices. | 
|  | 768 |  | 
| Alexandre Bounine | 388b78a | 2011-03-23 16:43:03 -0700 | [diff] [blame] | 769 | config FSL_RIO | 
|  | 770 | bool "Freescale Embedded SRIO Controller support" | 
|  | 771 | depends on RAPIDIO && HAS_RAPIDIO | 
|  | 772 | default "n" | 
|  | 773 | ---help--- | 
|  | 774 | Include support for RapidIO controller on Freescale embedded | 
|  | 775 | processors (MPC8548, MPC8641, etc). | 
|  | 776 |  | 
| Zhang Wei | f1f389d | 2008-04-18 13:33:39 -0700 | [diff] [blame] | 777 | source "drivers/rapidio/Kconfig" | 
|  | 778 |  | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 779 | endmenu | 
|  | 780 |  | 
| Suzuki Poulose | 0f890c8 | 2011-12-14 22:57:15 +0000 | [diff] [blame] | 781 | config NONSTATIC_KERNEL | 
|  | 782 | bool | 
|  | 783 | default n | 
|  | 784 |  | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 785 | menu "Advanced setup" | 
|  | 786 | depends on PPC32 | 
|  | 787 |  | 
|  | 788 | config ADVANCED_OPTIONS | 
|  | 789 | bool "Prompt for advanced kernel configuration options" | 
|  | 790 | help | 
|  | 791 | This option will enable prompting for a variety of advanced kernel | 
|  | 792 | configuration options.  These options can cause the kernel to not | 
|  | 793 | work if they are set incorrectly, but can be used to optimize certain | 
|  | 794 | aspects of kernel memory management. | 
|  | 795 |  | 
|  | 796 | Unless you know what you are doing, say N here. | 
|  | 797 |  | 
|  | 798 | comment "Default settings for advanced configuration options are used" | 
|  | 799 | depends on !ADVANCED_OPTIONS | 
|  | 800 |  | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 801 | config LOWMEM_SIZE_BOOL | 
|  | 802 | bool "Set maximum low memory" | 
|  | 803 | depends on ADVANCED_OPTIONS | 
|  | 804 | help | 
|  | 805 | This option allows you to set the maximum amount of memory which | 
|  | 806 | will be used as "low memory", that is, memory which the kernel can | 
|  | 807 | access directly, without having to set up a kernel virtual mapping. | 
|  | 808 | This can be useful in optimizing the layout of kernel virtual | 
|  | 809 | memory. | 
|  | 810 |  | 
|  | 811 | Say N here unless you know what you are doing. | 
|  | 812 |  | 
|  | 813 | config LOWMEM_SIZE | 
|  | 814 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL | 
|  | 815 | default "0x30000000" | 
|  | 816 |  | 
| Trent Piepho | 9605146 | 2008-12-08 19:34:58 -0800 | [diff] [blame] | 817 | config LOWMEM_CAM_NUM_BOOL | 
|  | 818 | bool "Set number of CAMs to use to map low memory" | 
|  | 819 | depends on ADVANCED_OPTIONS && FSL_BOOKE | 
|  | 820 | help | 
|  | 821 | This option allows you to set the maximum number of CAM slots that | 
|  | 822 | will be used to map low memory.  There are a limited number of slots | 
|  | 823 | available and even more limited number that will fit in the L1 MMU. | 
|  | 824 | However, using more entries will allow mapping more low memory.  This | 
|  | 825 | can be useful in optimizing the layout of kernel virtual memory. | 
|  | 826 |  | 
|  | 827 | Say N here unless you know what you are doing. | 
|  | 828 |  | 
|  | 829 | config LOWMEM_CAM_NUM | 
| Josh Boyer | 9b71dbd | 2009-03-31 08:05:50 -0400 | [diff] [blame] | 830 | depends on FSL_BOOKE | 
| Trent Piepho | 9605146 | 2008-12-08 19:34:58 -0800 | [diff] [blame] | 831 | int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL | 
|  | 832 | default 3 | 
|  | 833 |  | 
| Suzuki Poulose | 0f890c8 | 2011-12-14 22:57:15 +0000 | [diff] [blame] | 834 | config DYNAMIC_MEMSTART | 
|  | 835 | bool "Enable page aligned dynamic load address for kernel (EXPERIMENTAL)" | 
| Suzuki Poulose | 2391324 | 2011-12-14 22:57:57 +0000 | [diff] [blame^] | 836 | depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x) | 
| Suzuki Poulose | 0f890c8 | 2011-12-14 22:57:15 +0000 | [diff] [blame] | 837 | select NONSTATIC_KERNEL | 
| Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 838 | help | 
| Suzuki Poulose | 0f890c8 | 2011-12-14 22:57:15 +0000 | [diff] [blame] | 839 | This option enables the kernel to be loaded at any page aligned | 
|  | 840 | physical address. The kernel creates a mapping from KERNELBASE to | 
|  | 841 | the address where the kernel is loaded. The page size here implies | 
|  | 842 | the TLB page size of the mapping for kernel on the particular platform. | 
|  | 843 | Please refer to the init code for finding the TLB page size. | 
| Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 844 |  | 
| Suzuki Poulose | 0f890c8 | 2011-12-14 22:57:15 +0000 | [diff] [blame] | 845 | DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE | 
|  | 846 | kernel image, where the only restriction is the page aligned kernel | 
|  | 847 | load address. When this option is enabled, the compile time physical | 
|  | 848 | address CONFIG_PHYSICAL_START is ignored. | 
| Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 849 |  | 
| Suzuki Poulose | 0f890c8 | 2011-12-14 22:57:15 +0000 | [diff] [blame] | 850 | # Mapping based RELOCATABLE is moved to DYNAMIC_MEMSTART | 
|  | 851 | # config RELOCATABLE | 
|  | 852 | #	bool "Build a relocatable kernel (EXPERIMENTAL)" | 
|  | 853 | #	depends on EXPERIMENTAL && ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || PPC_47x) | 
|  | 854 | #	help | 
|  | 855 | #	  This builds a kernel image that is capable of running at the | 
|  | 856 | #	  location the kernel is loaded at, without any alignment restrictions. | 
|  | 857 | # | 
|  | 858 | #	  One use is for the kexec on panic case where the recovery kernel | 
|  | 859 | #	  must live at a different physical address than the primary | 
|  | 860 | #	  kernel. | 
|  | 861 | # | 
|  | 862 | #	  Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address | 
|  | 863 | #	  it has been loaded at and the compile time physical addresses | 
|  | 864 | #	  CONFIG_PHYSICAL_START is ignored.  However CONFIG_PHYSICAL_START | 
|  | 865 | #	  setting can still be useful to bootwrappers that need to know the | 
|  | 866 | #	  load location of the kernel (eg. u-boot/mkimage). | 
| Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 867 |  | 
|  | 868 | config PAGE_OFFSET_BOOL | 
|  | 869 | bool "Set custom page offset address" | 
|  | 870 | depends on ADVANCED_OPTIONS | 
|  | 871 | help | 
|  | 872 | This option allows you to set the kernel virtual address at which | 
|  | 873 | the kernel will map low memory.  This can be useful in optimizing | 
|  | 874 | the virtual memory layout of the system. | 
|  | 875 |  | 
|  | 876 | Say N here unless you know what you are doing. | 
|  | 877 |  | 
|  | 878 | config PAGE_OFFSET | 
|  | 879 | hex "Virtual address of memory base" if PAGE_OFFSET_BOOL | 
|  | 880 | default "0xc0000000" | 
|  | 881 |  | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 882 | config KERNEL_START_BOOL | 
|  | 883 | bool "Set custom kernel base address" | 
|  | 884 | depends on ADVANCED_OPTIONS | 
|  | 885 | help | 
|  | 886 | This option allows you to set the kernel virtual address at which | 
| Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 887 | the kernel will be loaded.  Normally this should match PAGE_OFFSET | 
|  | 888 | however there are times (like kdump) that one might not want them | 
|  | 889 | to be the same. | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 890 |  | 
|  | 891 | Say N here unless you know what you are doing. | 
|  | 892 |  | 
|  | 893 | config KERNEL_START | 
|  | 894 | hex "Virtual address of kernel base" if KERNEL_START_BOOL | 
| Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 895 | default PAGE_OFFSET if PAGE_OFFSET_BOOL | 
| Suzuki Poulose | 0f890c8 | 2011-12-14 22:57:15 +0000 | [diff] [blame] | 896 | default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 897 | default "0xc0000000" | 
|  | 898 |  | 
| Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 899 | config PHYSICAL_START_BOOL | 
|  | 900 | bool "Set physical address where the kernel is loaded" | 
|  | 901 | depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE | 
|  | 902 | help | 
|  | 903 | This gives the physical address where the kernel is loaded. | 
|  | 904 |  | 
|  | 905 | Say N here unless you know what you are doing. | 
|  | 906 |  | 
|  | 907 | config PHYSICAL_START | 
|  | 908 | hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL | 
| Suzuki Poulose | 0f890c8 | 2011-12-14 22:57:15 +0000 | [diff] [blame] | 909 | default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL | 
| Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 910 | default "0x00000000" | 
|  | 911 |  | 
|  | 912 | config PHYSICAL_ALIGN | 
|  | 913 | hex | 
| Trent Piepho | c8f3570 | 2008-12-08 19:34:59 -0800 | [diff] [blame] | 914 | default "0x04000000" if FSL_BOOKE | 
| Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 915 | help | 
|  | 916 | This value puts the alignment restrictions on physical address | 
|  | 917 | where kernel is loaded and run from. Kernel is compiled for an | 
|  | 918 | address which meets above alignment restriction. | 
|  | 919 |  | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 920 | config TASK_SIZE_BOOL | 
|  | 921 | bool "Set custom user task size" | 
|  | 922 | depends on ADVANCED_OPTIONS | 
|  | 923 | help | 
|  | 924 | This option allows you to set the amount of virtual address space | 
|  | 925 | allocated to user tasks.  This can be useful in optimizing the | 
|  | 926 | virtual memory layout of the system. | 
|  | 927 |  | 
|  | 928 | Say N here unless you know what you are doing. | 
|  | 929 |  | 
|  | 930 | config TASK_SIZE | 
|  | 931 | hex "Size of user task space" if TASK_SIZE_BOOL | 
| Kumar Gala | 4d9e5510 | 2007-10-11 13:40:21 -0500 | [diff] [blame] | 932 | default "0x80000000" if PPC_PREP || PPC_8xx | 
|  | 933 | default "0xc0000000" | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 934 |  | 
| Benjamin Herrenschmidt | 84532a0 | 2009-05-27 13:33:14 +1000 | [diff] [blame] | 935 | config CONSISTENT_SIZE_BOOL | 
|  | 936 | bool "Set custom consistent memory pool size" | 
|  | 937 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE | 
|  | 938 | help | 
|  | 939 | This option allows you to set the size of the | 
|  | 940 | consistent memory pool.  This pool of virtual memory | 
|  | 941 | is used to make consistent memory allocations. | 
|  | 942 |  | 
|  | 943 | config CONSISTENT_SIZE | 
|  | 944 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL | 
|  | 945 | default "0x00200000" if NOT_COHERENT_CACHE | 
|  | 946 |  | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 947 | config PIN_TLB | 
|  | 948 | bool "Pinned Kernel TLBs (860 ONLY)" | 
|  | 949 | depends on ADVANCED_OPTIONS && 8xx | 
|  | 950 | endmenu | 
|  | 951 |  | 
| Stephen Rothwell | cabb558 | 2005-09-30 16:16:52 +1000 | [diff] [blame] | 952 | if PPC64 | 
| Paul Mackerras | 549e815 | 2008-08-30 11:43:47 +1000 | [diff] [blame] | 953 | config RELOCATABLE | 
|  | 954 | bool "Build a relocatable kernel" | 
| Suzuki Poulose | 0f890c8 | 2011-12-14 22:57:15 +0000 | [diff] [blame] | 955 | select NONSTATIC_KERNEL | 
| Paul Mackerras | 549e815 | 2008-08-30 11:43:47 +1000 | [diff] [blame] | 956 | help | 
|  | 957 | This builds a kernel image that is capable of running anywhere | 
|  | 958 | in the RMA (real memory area) at any 16k-aligned base address. | 
|  | 959 | The kernel is linked as a position-independent executable (PIE) | 
|  | 960 | and contains dynamic relocations which are processed early | 
|  | 961 | in the bootup process. | 
|  | 962 |  | 
|  | 963 | One use is for the kexec on panic case where the recovery kernel | 
|  | 964 | must live at a different physical address than the primary | 
|  | 965 | kernel. | 
|  | 966 |  | 
| Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 967 | config PAGE_OFFSET | 
| Stephen Rothwell | cabb558 | 2005-09-30 16:16:52 +1000 | [diff] [blame] | 968 | hex | 
| Stephen Rothwell | eeb2d21 | 2005-09-30 17:24:15 +1000 | [diff] [blame] | 969 | default "0xc000000000000000" | 
| Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 970 | config KERNEL_START | 
|  | 971 | hex | 
| Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 972 | default "0xc000000000000000" | 
|  | 973 | config PHYSICAL_START | 
|  | 974 | hex | 
| Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 975 | default "0x00000000" | 
| Stephen Rothwell | cabb558 | 2005-09-30 16:16:52 +1000 | [diff] [blame] | 976 | endif | 
|  | 977 |  | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 978 | source "net/Kconfig" | 
|  | 979 |  | 
|  | 980 | source "drivers/Kconfig" | 
|  | 981 |  | 
|  | 982 | source "fs/Kconfig" | 
|  | 983 |  | 
| Li Yang | 9865853 | 2006-10-03 23:10:46 -0500 | [diff] [blame] | 984 | source "arch/powerpc/sysdev/qe_lib/Kconfig" | 
|  | 985 |  | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 986 | source "lib/Kconfig" | 
|  | 987 |  | 
| Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 988 | source "arch/powerpc/Kconfig.debug" | 
|  | 989 |  | 
|  | 990 | source "security/Kconfig" | 
|  | 991 |  | 
|  | 992 | config KEYS_COMPAT | 
|  | 993 | bool | 
|  | 994 | depends on COMPAT && KEYS | 
|  | 995 | default y | 
|  | 996 |  | 
|  | 997 | source "crypto/Kconfig" | 
| Domen Puncer | 6f66828 | 2007-09-21 00:00:11 +1000 | [diff] [blame] | 998 |  | 
|  | 999 | config PPC_CLOCK | 
|  | 1000 | bool | 
|  | 1001 | default n | 
| David Brownell | 9483a57 | 2008-07-23 21:26:48 -0700 | [diff] [blame] | 1002 | select HAVE_CLK | 
| Sylvain Munaut | 1088a20 | 2007-09-16 20:53:25 +1000 | [diff] [blame] | 1003 |  | 
|  | 1004 | config PPC_LIB_RHEAP | 
|  | 1005 | bool | 
|  | 1006 |  | 
| Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 1007 | source "arch/powerpc/kvm/Kconfig" |