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 | |
Tejun Heo | c2a7e81 | 2009-08-14 15:00:53 +0900 | [diff] [blame] | 30 | config HAVE_SETUP_PER_CPU_AREA |
Tejun Heo | e74e396 | 2009-03-30 19:07:44 +0900 | [diff] [blame] | 31 | def_bool PPC64 |
| 32 | |
Tejun Heo | c2a7e81 | 2009-08-14 15:00:53 +0900 | [diff] [blame] | 33 | config NEED_PER_CPU_EMBED_FIRST_CHUNK |
travis@sgi.com | b32ef63 | 2008-01-30 13:32:51 +0100 | [diff] [blame] | 34 | def_bool PPC64 |
| 35 | |
Michael Ellerman | 551b81f | 2009-10-13 19:44:44 +0000 | [diff] [blame] | 36 | config NR_IRQS |
| 37 | int "Number of virtual interrupt numbers" |
Anton Blanchard | 859aefc | 2010-01-31 01:14:03 +0000 | [diff] [blame] | 38 | range 32 32768 |
Michael Ellerman | 551b81f | 2009-10-13 19:44:44 +0000 | [diff] [blame] | 39 | default "512" |
| 40 | help |
| 41 | This defines the number of virtual interrupt numbers the kernel |
| 42 | can manage. Virtual interrupt numbers are what you see in |
| 43 | /proc/interrupts. If you configure your system to have too few, |
| 44 | drivers will fail to load or worse - handle with care. |
| 45 | |
Christoph Hellwig | fd3e0bb | 2008-04-17 14:35:00 +1000 | [diff] [blame] | 46 | config STACKTRACE_SUPPORT |
| 47 | bool |
| 48 | default y |
| 49 | |
Arnd Bergmann | 01f4b8b | 2008-07-11 00:08:18 +1000 | [diff] [blame] | 50 | config HAVE_LATENCYTOP_SUPPORT |
| 51 | def_bool y |
| 52 | |
Benjamin Herrenschmidt | 945feb1 | 2008-04-17 14:35:01 +1000 | [diff] [blame] | 53 | config TRACE_IRQFLAGS_SUPPORT |
| 54 | bool |
Benjamin Herrenschmidt | 945feb1 | 2008-04-17 14:35:01 +1000 | [diff] [blame] | 55 | default y |
| 56 | |
| 57 | config LOCKDEP_SUPPORT |
| 58 | bool |
| 59 | default y |
| 60 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 61 | config RWSEM_GENERIC_SPINLOCK |
| 62 | bool |
| 63 | |
| 64 | config RWSEM_XCHGADD_ALGORITHM |
| 65 | bool |
| 66 | default y |
| 67 | |
Nick Piggin | 95c354f | 2008-01-30 13:31:20 +0100 | [diff] [blame] | 68 | config GENERIC_LOCKBREAK |
| 69 | bool |
| 70 | default y |
| 71 | depends on SMP && PREEMPT |
| 72 | |
David Howells | f0d1b0b | 2006-12-08 02:37:49 -0800 | [diff] [blame] | 73 | config ARCH_HAS_ILOG2_U32 |
| 74 | bool |
David Howells | ef55d53 | 2006-12-08 02:37:53 -0800 | [diff] [blame] | 75 | default y |
David Howells | f0d1b0b | 2006-12-08 02:37:49 -0800 | [diff] [blame] | 76 | |
| 77 | config ARCH_HAS_ILOG2_U64 |
| 78 | bool |
David Howells | ef55d53 | 2006-12-08 02:37:53 -0800 | [diff] [blame] | 79 | default y if 64BIT |
David Howells | f0d1b0b | 2006-12-08 02:37:49 -0800 | [diff] [blame] | 80 | |
Akinobu Mita | e779b2f | 2006-03-26 01:39:33 -0800 | [diff] [blame] | 81 | config GENERIC_HWEIGHT |
| 82 | bool |
| 83 | default y |
| 84 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 85 | config PPC |
| 86 | bool |
| 87 | default y |
Mark Salter | b7e7c37 | 2013-10-07 22:15:32 -0400 | [diff] [blame] | 88 | select ARCH_MIGHT_HAVE_PC_PARPORT |
Mark Salter | c74e6d3 | 2014-01-01 11:32:26 -0800 | [diff] [blame] | 89 | select ARCH_MIGHT_HAVE_PC_SERIO |
Stephen Rothwell | d812c0e1 | 2013-03-06 18:11:51 +0000 | [diff] [blame] | 90 | select BINFMT_ELF |
Vineeth Vijayan | 59994fb | 2014-11-14 14:42:05 +0530 | [diff] [blame^] | 91 | select ARCH_BINFMT_ELF_RANDOMIZE_PIE |
Stephen Rothwell | 10f85f4 | 2010-06-29 12:43:34 +1000 | [diff] [blame] | 92 | select OF |
Stephen Neuendorffer | e6ce132 | 2010-11-18 15:54:56 -0800 | [diff] [blame] | 93 | select OF_EARLY_FLATTREE |
Marek Szyprowski | 708b7ee | 2014-02-28 14:42:56 +0100 | [diff] [blame] | 94 | select OF_RESERVED_MEM |
Steven Rostedt | 2b79d69 | 2009-01-06 18:49:17 +0000 | [diff] [blame] | 95 | select HAVE_FTRACE_MCOUNT_RECORD |
| 96 | select HAVE_DYNAMIC_FTRACE |
Steven Rostedt | 606576c | 2008-10-06 19:06:12 -0400 | [diff] [blame] | 97 | select HAVE_FUNCTION_TRACER |
Steven Rostedt | 60ce8f7 | 2009-02-11 20:06:43 -0500 | [diff] [blame] | 98 | select HAVE_FUNCTION_GRAPH_TRACER |
Catalin Marinas | 7ac57a8 | 2012-10-08 16:28:16 -0700 | [diff] [blame] | 99 | select SYSCTL_EXCEPTION_TRACE |
Michael Buesch | 7444a72 | 2008-07-25 01:46:11 -0700 | [diff] [blame] | 100 | select ARCH_WANT_OPTIONAL_GPIOLIB |
Stephen Rothwell | 4febd95 | 2013-03-07 15:48:16 +1100 | [diff] [blame] | 101 | select VIRT_TO_BUS if !PPC64 |
Sam Ravnborg | ec7748b | 2008-02-09 10:46:40 +0100 | [diff] [blame] | 102 | select HAVE_IDE |
Benjamin Herrenschmidt | a1f242f | 2008-07-23 21:27:08 -0700 | [diff] [blame] | 103 | select HAVE_IOREMAP_PROT |
Anton Blanchard | 0b5e666 | 2013-09-23 12:05:12 +1000 | [diff] [blame] | 104 | select HAVE_EFFICIENT_UNALIGNED_ACCESS if !CPU_LITTLE_ENDIAN |
Mathieu Desnoyers | 3f55009 | 2008-02-02 15:10:35 -0500 | [diff] [blame] | 105 | select HAVE_KPROBES |
Jason Wessel | 17ce452 | 2008-07-23 11:30:15 -0500 | [diff] [blame] | 106 | select HAVE_ARCH_KGDB |
Ananth N Mavinakayanahalli | 9edddaa | 2008-03-04 14:28:37 -0800 | [diff] [blame] | 107 | select HAVE_KRETPROBES |
Roland McGrath | dec2b0d | 2008-07-27 16:53:20 +1000 | [diff] [blame] | 108 | select HAVE_ARCH_TRACEHOOK |
Yinghai Lu | 95f72d1 | 2010-07-12 14:36:09 +1000 | [diff] [blame] | 109 | select HAVE_MEMBLOCK |
Tejun Heo | 1d7cfe1 | 2011-12-08 10:22:08 -0800 | [diff] [blame] | 110 | select HAVE_MEMBLOCK_NODE_MAP |
FUJITA Tomonori | 46bab4e | 2009-08-04 19:08:26 +0000 | [diff] [blame] | 111 | select HAVE_DMA_ATTRS |
FUJITA Tomonori | 80d3e8a | 2009-08-04 19:08:28 +0000 | [diff] [blame] | 112 | select HAVE_DMA_API_DEBUG |
Steven Rostedt | 4e491d1 | 2008-05-14 23:49:44 -0400 | [diff] [blame] | 113 | select HAVE_OPROFILE |
Catalin Marinas | b69ec42 | 2012-10-08 16:28:11 -0700 | [diff] [blame] | 114 | select HAVE_DEBUG_KMEMLEAK |
Laura Abbott | 308c09f | 2014-08-08 14:23:25 -0700 | [diff] [blame] | 115 | select ARCH_HAS_SG_CHAIN |
Paul Mackerras | c2e95c6 | 2009-06-12 21:10:41 +0000 | [diff] [blame] | 116 | select GENERIC_ATOMIC64 if PPC32 |
Catalin Marinas | 7463449 | 2012-07-30 14:41:09 -0700 | [diff] [blame] | 117 | select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE |
Ingo Molnar | cdd6c48 | 2009-09-21 12:02:48 +0200 | [diff] [blame] | 118 | select HAVE_PERF_EVENTS |
Mahesh Salgaonkar | 359e428 | 2010-04-07 18:10:20 +1000 | [diff] [blame] | 119 | select HAVE_REGS_AND_STACK_ACCESS_API |
K.Prasad | 5aae8a5 | 2010-06-15 11:35:19 +0530 | [diff] [blame] | 120 | select HAVE_HW_BREAKPOINT if PERF_EVENTS && PPC_BOOK3S_64 |
Will Deacon | c1d7e01 | 2012-07-30 14:42:46 -0700 | [diff] [blame] | 121 | select ARCH_WANT_IPC_PARSE_VERSION |
Grant Likely | ad5b7f13 | 2012-01-30 08:02:19 +0000 | [diff] [blame] | 122 | select SPARSE_IRQ |
Grant Likely | cc79ca6 | 2012-02-16 01:37:49 -0700 | [diff] [blame] | 123 | select IRQ_DOMAIN |
Thomas Gleixner | 433c9c6 | 2011-03-25 17:04:59 +0100 | [diff] [blame] | 124 | select GENERIC_IRQ_SHOW |
| 125 | select GENERIC_IRQ_SHOW_LEVEL |
Thomas Gleixner | e8d2c47 | 2011-10-05 02:30:51 +0000 | [diff] [blame] | 126 | select IRQ_FORCED_THREADING |
Peter Zijlstra | 2672391 | 2011-05-24 17:12:00 -0700 | [diff] [blame] | 127 | select HAVE_RCU_TABLE_FREE if SMP |
Ian Munsie | 02424d8 | 2011-02-02 17:27:24 +0000 | [diff] [blame] | 128 | select HAVE_SYSCALL_TRACEPOINTS |
Sam Ravnborg | e47b65b | 2012-05-21 20:45:37 +0200 | [diff] [blame] | 129 | select HAVE_BPF_JIT if PPC64 |
Michael Ellerman | ac5f89c | 2011-06-29 19:16:59 +0000 | [diff] [blame] | 130 | select HAVE_ARCH_JUMP_LABEL |
Huang Ying | df013ff | 2011-07-13 13:14:22 +0800 | [diff] [blame] | 131 | select ARCH_HAVE_NMI_SAFE_CMPXCHG |
Thomas Gleixner | 17e32ea | 2012-04-20 13:05:48 +0000 | [diff] [blame] | 132 | select GENERIC_SMP_IDLE_THREAD |
Anna-Maria Gleixner | b9ed27d | 2012-05-18 16:45:51 +0000 | [diff] [blame] | 133 | select GENERIC_CMOS_UPDATE |
John Stultz | 7063942 | 2012-09-04 15:34:21 -0400 | [diff] [blame] | 134 | select GENERIC_TIME_VSYSCALL_OLD |
Anna-Maria Gleixner | b9ed27d | 2012-05-18 16:45:51 +0000 | [diff] [blame] | 135 | select GENERIC_CLOCKEVENTS |
Preeti U Murthy | 0d94873 | 2014-02-26 05:39:06 +0530 | [diff] [blame] | 136 | select GENERIC_CLOCKEVENTS_BROADCAST if SMP |
| 137 | select ARCH_HAS_TICK_BROADCAST if GENERIC_CLOCKEVENTS_BROADCAST |
Paul Mackerras | 1629372 | 2012-05-28 13:03:47 +1000 | [diff] [blame] | 138 | select GENERIC_STRNCPY_FROM_USER |
| 139 | select GENERIC_STRNLEN_USER |
David Howells | 786d35d | 2012-09-28 14:31:03 +0930 | [diff] [blame] | 140 | select HAVE_MOD_ARCH_SPECIFIC |
| 141 | select MODULES_USE_ELF_RELA |
Al Viro | 0bcfe54 | 2012-10-26 23:08:25 -0400 | [diff] [blame] | 142 | select CLONE_BACKWARDS |
David Woodhouse | fe3955c | 2012-12-19 15:14:17 +0000 | [diff] [blame] | 143 | select ARCH_USE_BUILTIN_BSWAP |
Al Viro | 0980cae | 2012-12-25 16:23:09 -0500 | [diff] [blame] | 144 | select OLD_SIGSUSPEND |
Al Viro | 09a4d5d | 2012-12-25 19:27:42 -0500 | [diff] [blame] | 145 | select OLD_SIGACTION if PPC32 |
Dave Hansen | d1a1dc0 | 2013-07-01 13:04:42 -0700 | [diff] [blame] | 146 | select HAVE_DEBUG_STACKOVERFLOW |
Frederic Weisbecker | 62d26c8 | 2013-09-24 17:18:36 +0200 | [diff] [blame] | 147 | select HAVE_IRQ_EXIT_ON_IRQ_STACK |
Michael Ellerman | 3405d23 | 2014-01-15 18:14:28 +1100 | [diff] [blame] | 148 | select ARCH_USE_CMPXCHG_LOCKREF if PPC64 |
AKASHI Takahiro | 7a01772 | 2014-02-25 18:16:24 +0900 | [diff] [blame] | 149 | select HAVE_ARCH_AUDITSYSCALL |
Peter Zijlstra | 4badad3 | 2014-06-06 19:53:16 +0200 | [diff] [blame] | 150 | select ARCH_SUPPORTS_ATOMIC_RMW |
Anton Blanchard | a75c380 | 2014-09-19 09:40:21 +1000 | [diff] [blame] | 151 | select DCACHE_WORD_ACCESS if PPC64 && CPU_LITTLE_ENDIAN |
Anton Blanchard | 1023973 | 2014-09-17 22:15:33 +1000 | [diff] [blame] | 152 | select NO_BOOTMEM |
Aneesh Kumar K.V | b30e759 | 2014-11-05 21:57:41 +0530 | [diff] [blame] | 153 | select HAVE_GENERIC_RCU_GUP |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 154 | |
Anton Blanchard | 7a332b0 | 2013-09-23 12:04:51 +1000 | [diff] [blame] | 155 | config GENERIC_CSUM |
| 156 | def_bool CPU_LITTLE_ENDIAN |
| 157 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 158 | config EARLY_PRINTK |
| 159 | bool |
Benjamin Herrenschmidt | 51d3082 | 2005-11-23 17:57:25 +1100 | [diff] [blame] | 160 | default y |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 161 | |
Jason Baron | b71d47c | 2013-11-25 23:23:11 +0000 | [diff] [blame] | 162 | config PANIC_TIMEOUT |
| 163 | int |
| 164 | default 180 |
| 165 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 166 | config COMPAT |
| 167 | bool |
| 168 | default y if PPC64 |
Roland McGrath | 01e31db | 2008-01-02 17:03:11 -0800 | [diff] [blame] | 169 | select COMPAT_BINFMT_ELF |
Chris Metcalf | 48b25c4 | 2012-03-15 13:13:38 -0400 | [diff] [blame] | 170 | select ARCH_WANT_OLD_COMPAT_IPC |
Al Viro | 09a4d5d | 2012-12-25 19:27:42 -0500 | [diff] [blame] | 171 | select COMPAT_OLD_SIGACTION |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 172 | |
| 173 | config SYSVIPC_COMPAT |
| 174 | bool |
| 175 | depends on COMPAT && SYSVIPC |
| 176 | default y |
| 177 | |
| 178 | # All PPC32s use generic nvram driver through ppc_md |
| 179 | config GENERIC_NVRAM |
| 180 | bool |
| 181 | default y if PPC32 |
| 182 | |
Ingo Molnar | ae1e913 | 2008-11-11 09:05:16 +0100 | [diff] [blame] | 183 | config SCHED_OMIT_FRAME_POINTER |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 184 | bool |
| 185 | default y |
| 186 | |
| 187 | config ARCH_MAY_HAVE_PC_FDC |
| 188 | bool |
Pranith Kumar | 3484a31 | 2014-08-18 17:13:41 -0400 | [diff] [blame] | 189 | default PCI |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 190 | |
Kumar Gala | 08264cb | 2006-01-10 21:43:56 -0600 | [diff] [blame] | 191 | config PPC_OF |
| 192 | def_bool y |
| 193 | |
| 194 | config PPC_UDBG_16550 |
| 195 | bool |
| 196 | default n |
| 197 | |
Kumar Gala | 08264cb | 2006-01-10 21:43:56 -0600 | [diff] [blame] | 198 | config GENERIC_TBSYNC |
| 199 | bool |
| 200 | default y if PPC32 && SMP |
| 201 | default n |
| 202 | |
Al Viro | e65e1fc | 2006-09-12 03:04:40 -0400 | [diff] [blame] | 203 | config AUDIT_ARCH |
| 204 | bool |
| 205 | default y |
| 206 | |
Jeremy Fitzhardinge | 73c9cea | 2006-12-08 03:30:41 -0800 | [diff] [blame] | 207 | config GENERIC_BUG |
| 208 | bool |
| 209 | default y |
| 210 | depends on BUG |
| 211 | |
Johannes Berg | b302887 | 2007-03-20 05:18:02 +1100 | [diff] [blame] | 212 | config SYS_SUPPORTS_APM_EMULATION |
Kumar Gala | 58da10b | 2007-05-23 09:51:46 -0500 | [diff] [blame] | 213 | default y if PMAC_APM_EMU |
Johannes Berg | b302887 | 2007-03-20 05:18:02 +1100 | [diff] [blame] | 214 | bool |
| 215 | |
David Gibson | 6c5b59b | 2011-04-14 18:29:16 +0000 | [diff] [blame] | 216 | config EPAPR_BOOT |
| 217 | bool |
| 218 | help |
| 219 | Used to allow a board to specify it wants an ePAPR compliant wrapper. |
| 220 | default n |
| 221 | |
Kumar Gala | f4fc4a5 | 2006-01-16 10:53:22 -0600 | [diff] [blame] | 222 | config DEFAULT_UIMAGE |
| 223 | bool |
| 224 | help |
| 225 | Used to allow a board to specify it wants a uImage built by default |
| 226 | default n |
| 227 | |
Johannes Berg | 801e406 | 2007-12-08 02:12:39 +0100 | [diff] [blame] | 228 | config ARCH_HIBERNATION_POSSIBLE |
| 229 | bool |
Johannes Berg | 543b9fd | 2007-05-03 22:31:38 +1000 | [diff] [blame] | 230 | default y |
| 231 | |
Johannes Berg | f4cb570 | 2007-12-08 02:14:00 +0100 | [diff] [blame] | 232 | config ARCH_SUSPEND_POSSIBLE |
| 233 | def_bool y |
Anton Vorontsov | 4ffd695 | 2009-09-16 01:43:57 +0400 | [diff] [blame] | 234 | depends on ADB_PMU || PPC_EFIKA || PPC_LITE5200 || PPC_83xx || \ |
Zhao Chenhui | d0832a7 | 2012-07-20 20:42:36 +0800 | [diff] [blame] | 235 | (PPC_85xx && !PPC_E500MC) || PPC_86xx || PPC_PSERIES \ |
| 236 | || 44x || 40x |
Johannes Berg | f4cb570 | 2007-12-08 02:14:00 +0100 | [diff] [blame] | 237 | |
Benjamin Herrenschmidt | 4c75a6f | 2006-11-11 17:24:53 +1100 | [diff] [blame] | 238 | config PPC_DCR_NATIVE |
| 239 | bool |
| 240 | default n |
| 241 | |
| 242 | config PPC_DCR_MMIO |
| 243 | bool |
| 244 | default n |
| 245 | |
| 246 | config PPC_DCR |
| 247 | bool |
| 248 | depends on PPC_DCR_NATIVE || PPC_DCR_MMIO |
| 249 | default y |
| 250 | |
Benjamin Herrenschmidt | 4c9d280 | 2006-11-11 17:25:08 +1100 | [diff] [blame] | 251 | config PPC_OF_PLATFORM_PCI |
| 252 | bool |
Stephen Rothwell | 373a6da | 2007-12-21 15:37:07 +1100 | [diff] [blame] | 253 | depends on PCI |
Benjamin Herrenschmidt | 4c9d280 | 2006-11-11 17:25:08 +1100 | [diff] [blame] | 254 | depends on PPC64 # not supported on 32 bits yet |
| 255 | default n |
| 256 | |
Akinobu Mita | 6a11f75 | 2009-03-31 15:23:17 -0700 | [diff] [blame] | 257 | config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
| 258 | def_bool y |
| 259 | |
Ananth N Mavinakayanahalli | 8b7b80b | 2012-08-23 21:31:32 +0000 | [diff] [blame] | 260 | config ARCH_SUPPORTS_UPROBES |
| 261 | def_bool y |
| 262 | |
Dave Kleikamp | 172ae2e | 2010-02-08 11:50:57 +0000 | [diff] [blame] | 263 | config PPC_ADV_DEBUG_REGS |
| 264 | bool |
| 265 | depends on 40x || BOOKE |
| 266 | default y |
| 267 | |
| 268 | config PPC_ADV_DEBUG_IACS |
| 269 | int |
| 270 | depends on PPC_ADV_DEBUG_REGS |
| 271 | default 4 if 44x |
| 272 | default 2 |
| 273 | |
| 274 | config PPC_ADV_DEBUG_DACS |
| 275 | int |
| 276 | depends on PPC_ADV_DEBUG_REGS |
| 277 | default 2 |
| 278 | |
| 279 | config PPC_ADV_DEBUG_DVCS |
| 280 | int |
| 281 | depends on PPC_ADV_DEBUG_REGS |
| 282 | default 2 if 44x |
| 283 | default 0 |
| 284 | |
| 285 | config PPC_ADV_DEBUG_DAC_RANGE |
| 286 | bool |
| 287 | depends on PPC_ADV_DEBUG_REGS && 44x |
| 288 | default y |
| 289 | |
Suzuki K. Poulose | 5e249d4 | 2013-01-07 00:26:57 +0000 | [diff] [blame] | 290 | config PPC_EMULATE_SSTEP |
| 291 | bool |
| 292 | default y if KPROBES || UPROBES || XMON || HAVE_HW_BREAKPOINT |
| 293 | |
Scott Wood | 1c98025 | 2014-08-08 18:40:42 -0500 | [diff] [blame] | 294 | config ZONE_DMA32 |
| 295 | bool |
| 296 | default y if PPC64 |
| 297 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 298 | source "init/Kconfig" |
| 299 | |
Matt Helsley | dc52ddc | 2008-10-18 20:27:21 -0700 | [diff] [blame] | 300 | source "kernel/Kconfig.freezer" |
| 301 | |
Benjamin Herrenschmidt | a2d2e1e | 2007-12-21 15:39:24 +1100 | [diff] [blame] | 302 | source "arch/powerpc/sysdev/Kconfig" |
Kumar Gala | 4330f5d | 2007-03-16 09:32:17 -0500 | [diff] [blame] | 303 | source "arch/powerpc/platforms/Kconfig" |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 304 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 305 | menu "Kernel options" |
| 306 | |
| 307 | config HIGHMEM |
| 308 | bool "High memory support" |
| 309 | depends on PPC32 |
| 310 | |
| 311 | source kernel/Kconfig.hz |
| 312 | source kernel/Kconfig.preempt |
| 313 | source "fs/Kconfig.binfmt" |
| 314 | |
Mel Gorman | ba72cb8 | 2007-11-28 16:21:13 -0800 | [diff] [blame] | 315 | config HUGETLB_PAGE_SIZE_VARIABLE |
| 316 | bool |
| 317 | depends on HUGETLB_PAGE |
| 318 | default y |
| 319 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 320 | config MATH_EMULATION |
| 321 | bool "Math emulation" |
Benjamin Herrenschmidt | 4e63f8e | 2013-06-09 17:01:24 +1000 | [diff] [blame] | 322 | depends on 4xx || 8xx || PPC_MPC832x || BOOKE |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 323 | ---help--- |
| 324 | Some PowerPC chips designed for embedded applications do not have |
| 325 | a floating-point unit and therefore do not implement the |
| 326 | floating-point instructions in the PowerPC instruction set. If you |
| 327 | say Y here, the kernel will include code to emulate a floating-point |
| 328 | unit, which will allow programs that use floating-point |
| 329 | instructions to run. |
| 330 | |
Benjamin Herrenschmidt | 4e63f8e | 2013-06-09 17:01:24 +1000 | [diff] [blame] | 331 | This is also useful to emulate missing (optional) instructions |
| 332 | such as fsqrt on cores that do have an FPU but do not implement |
| 333 | them (such as Freescale BookE). |
| 334 | |
Kevin Hao | e05c0e8 | 2013-07-16 19:57:15 +0800 | [diff] [blame] | 335 | choice |
| 336 | prompt "Math emulation options" |
| 337 | default MATH_EMULATION_FULL |
| 338 | depends on MATH_EMULATION |
| 339 | |
| 340 | config MATH_EMULATION_FULL |
| 341 | bool "Emulate all the floating point instructions" |
| 342 | ---help--- |
| 343 | Select this option will enable the kernel to support to emulate |
| 344 | all the floating point instructions. If your SoC doesn't have |
| 345 | a FPU, you should select this. |
| 346 | |
| 347 | config MATH_EMULATION_HW_UNIMPLEMENTED |
| 348 | bool "Just emulate the FPU unimplemented instructions" |
| 349 | ---help--- |
| 350 | Select this if you know there does have a hardware FPU on your |
| 351 | SoC, but some floating point instructions are not implemented by that. |
| 352 | |
| 353 | endchoice |
| 354 | |
Michael Neuling | 3d72bbc | 2013-02-13 16:21:43 +0000 | [diff] [blame] | 355 | config PPC_TRANSACTIONAL_MEM |
| 356 | bool "Transactional Memory support for POWERPC" |
| 357 | depends on PPC_BOOK3S_64 |
| 358 | depends on SMP |
Michael Neuling | 7b37a12 | 2014-01-08 21:25:31 +1100 | [diff] [blame] | 359 | select ALTIVEC |
| 360 | select VSX |
Michael Neuling | 3d72bbc | 2013-02-13 16:21:43 +0000 | [diff] [blame] | 361 | default n |
| 362 | ---help--- |
| 363 | Support user-mode Transactional Memory on POWERPC. |
| 364 | |
FUJITA Tomonori | fb3475e | 2008-02-04 22:28:08 -0800 | [diff] [blame] | 365 | config IOMMU_HELPER |
| 366 | def_bool PPC64 |
| 367 | |
Becky Bruce | ec3cf2e | 2009-05-14 12:42:28 +0000 | [diff] [blame] | 368 | config SWIOTLB |
| 369 | bool "SWIOTLB support" |
| 370 | default n |
| 371 | select IOMMU_HELPER |
| 372 | ---help--- |
| 373 | Support for IO bounce buffering for systems without an IOMMU. |
| 374 | This allows us to DMA to the full physical address space on |
| 375 | platforms where the size of a physical address is larger |
| 376 | than the bus address. Not all platforms support this. |
| 377 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 378 | config HOTPLUG_CPU |
| 379 | bool "Support for enabling/disabling CPUs" |
Stephen Rothwell | 40b3136 | 2013-05-21 13:49:35 +1000 | [diff] [blame] | 380 | depends on SMP && (PPC_PSERIES || \ |
Zhao Chenhui | d0832a7 | 2012-07-20 20:42:36 +0800 | [diff] [blame] | 381 | PPC_PMAC || PPC_POWERNV || (PPC_85xx && !PPC_E500MC)) |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 382 | ---help--- |
| 383 | Say Y here to be able to disable and re-enable individual |
| 384 | CPUs at runtime on SMP machines. |
| 385 | |
| 386 | Say N if you are unsure. |
| 387 | |
Nathan Fontenot | 12633e8 | 2009-11-25 17:23:25 +0000 | [diff] [blame] | 388 | config ARCH_CPU_PROBE_RELEASE |
| 389 | def_bool y |
| 390 | depends on HOTPLUG_CPU |
| 391 | |
Yasunori Goto | cc57637 | 2006-06-29 02:24:27 -0700 | [diff] [blame] | 392 | config ARCH_ENABLE_MEMORY_HOTPLUG |
| 393 | def_bool y |
| 394 | |
Badari Pulavarty | a99824f | 2008-02-05 00:10:18 -0800 | [diff] [blame] | 395 | config ARCH_HAS_WALK_MEMORY |
| 396 | def_bool y |
| 397 | |
Badari Pulavarty | 1482471 | 2008-02-05 00:10:17 -0800 | [diff] [blame] | 398 | config ARCH_ENABLE_MEMORY_HOTREMOVE |
| 399 | def_bool y |
| 400 | |
Mahesh Salgaonkar | f2296a3 | 2013-11-15 09:50:50 +0530 | [diff] [blame] | 401 | config PPC64_SUPPORTS_MEMORY_FAILURE |
| 402 | bool "Add support for memory hwpoison" |
| 403 | depends on PPC_BOOK3S_64 |
| 404 | default "y" if PPC_POWERNV |
| 405 | select ARCH_SUPPORTS_MEMORY_FAILURE |
| 406 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 407 | config KEXEC |
Kees Cook | 642e56f | 2013-01-16 18:53:25 -0800 | [diff] [blame] | 408 | bool "kexec system call" |
| 409 | depends on (PPC_BOOK3S || FSL_BOOKE || (44x && !SMP)) |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 410 | help |
| 411 | kexec is a system call that implements the ability to shutdown your |
| 412 | current kernel, and to start another kernel. It is like a reboot |
Matt LaPlante | 1f1332f | 2006-06-29 01:32:47 -0400 | [diff] [blame] | 413 | but it is independent of the system firmware. And like a reboot |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 414 | you can start any kernel with it, not just Linux. |
| 415 | |
Matt LaPlante | 1f1332f | 2006-06-29 01:32:47 -0400 | [diff] [blame] | 416 | The name comes from the similarity to the exec system call. |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 417 | |
| 418 | It is an ongoing process to be certain the hardware in a machine |
| 419 | is properly shutdown, so do not be surprised if this code does not |
Geert Uytterhoeven | bf22069 | 2013-08-20 21:38:03 +0200 | [diff] [blame] | 420 | initially work for you. As of this writing the exact hardware |
| 421 | interface is strongly in flux, so no good recommendation can be |
| 422 | made. |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 423 | |
Haren Myneni | e8625d46 | 2006-01-14 13:48:25 -0800 | [diff] [blame] | 424 | config CRASH_DUMP |
Bernhard Walle | 3420b5d | 2008-06-27 03:02:15 +1000 | [diff] [blame] | 425 | bool "Build a kdump crash kernel" |
Suzuki Poulose | 47da421 | 2012-04-15 22:27:35 +0000 | [diff] [blame] | 426 | depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP) |
Guenter Roeck | fb43e84 | 2014-06-30 11:45:30 -0700 | [diff] [blame] | 427 | select RELOCATABLE if (PPC64 && !COMPILE_TEST) || 44x || FSL_BOOKE |
Haren Myneni | e8625d46 | 2006-01-14 13:48:25 -0800 | [diff] [blame] | 428 | help |
| 429 | Build a kernel suitable for use as a kdump capture kernel. |
Mohan Kumar M | 54622f1 | 2008-10-21 17:38:10 +0000 | [diff] [blame] | 430 | The same kernel binary can be used as production kernel and dump |
| 431 | capture kernel. |
Haren Myneni | e8625d46 | 2006-01-14 13:48:25 -0800 | [diff] [blame] | 432 | |
Mahesh Salgaonkar | eb39c88 | 2012-02-16 01:14:22 +0000 | [diff] [blame] | 433 | config FA_DUMP |
| 434 | bool "Firmware-assisted dump" |
Michael Ellerman | 90890b1 | 2013-10-28 15:00:35 +1100 | [diff] [blame] | 435 | depends on PPC64 && PPC_RTAS && CRASH_DUMP && KEXEC |
Manish Ahuja | 242f271 | 2008-03-22 10:50:50 +1100 | [diff] [blame] | 436 | help |
Mahesh Salgaonkar | eb39c88 | 2012-02-16 01:14:22 +0000 | [diff] [blame] | 437 | A robust mechanism to get reliable kernel crash dump with |
| 438 | assistance from firmware. This approach does not use kexec, |
| 439 | instead firmware assists in booting the kdump kernel |
| 440 | while preserving memory contents. Firmware-assisted dump |
| 441 | is meant to be a kdump replacement offering robustness and |
| 442 | speed not possible without system firmware assistance. |
Manish Ahuja | 242f271 | 2008-03-22 10:50:50 +1100 | [diff] [blame] | 443 | |
| 444 | If unsure, say "N" |
| 445 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 446 | config IRQ_ALL_CPUS |
| 447 | bool "Distribute interrupts on all CPUs by default" |
Paul Bolle | 6cf09b9 | 2013-05-15 11:21:01 +0200 | [diff] [blame] | 448 | depends on SMP |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 449 | help |
| 450 | This option gives the kernel permission to distribute IRQs across |
| 451 | multiple CPUs. Saying N here will route all IRQs to the first |
| 452 | CPU. Generally saying Y is safe, although some problems have been |
| 453 | reported with SMP Power Macintoshes with this option enabled. |
| 454 | |
Andy Whitcroft | ffa27b6 | 2005-10-28 17:46:58 -0700 | [diff] [blame] | 455 | config NUMA |
| 456 | bool "NUMA support" |
| 457 | depends on PPC64 |
| 458 | default y if SMP && PPC_PSERIES |
| 459 | |
Yasunori Goto | c80d79d | 2006-04-10 22:53:53 -0700 | [diff] [blame] | 460 | config NODES_SHIFT |
| 461 | int |
Anton Blanchard | ea55bf2 | 2009-09-21 19:56:43 +0000 | [diff] [blame] | 462 | default "8" if PPC64 |
Yasunori Goto | c80d79d | 2006-04-10 22:53:53 -0700 | [diff] [blame] | 463 | default "4" |
| 464 | depends on NEED_MULTIPLE_NODES |
| 465 | |
Nishanth Aravamudan | 8c27226 | 2014-05-19 11:14:23 -0700 | [diff] [blame] | 466 | config USE_PERCPU_NUMA_NODE_ID |
| 467 | def_bool y |
| 468 | depends on NUMA |
| 469 | |
Nishanth Aravamudan | 64bb80d | 2014-05-16 16:41:20 -0700 | [diff] [blame] | 470 | config HAVE_MEMORYLESS_NODES |
| 471 | def_bool y |
| 472 | depends on NUMA |
| 473 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 474 | config ARCH_SELECT_MEMORY_MODEL |
| 475 | def_bool y |
| 476 | depends on PPC64 |
| 477 | |
| 478 | config ARCH_FLATMEM_ENABLE |
Andy Whitcroft | 9100b20 | 2005-11-29 19:20:55 +0000 | [diff] [blame] | 479 | def_bool y |
| 480 | depends on (PPC64 && !NUMA) || PPC32 |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 481 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 482 | config ARCH_SPARSEMEM_ENABLE |
| 483 | def_bool y |
Andy Whitcroft | 9100b20 | 2005-11-29 19:20:55 +0000 | [diff] [blame] | 484 | depends on PPC64 |
Andy Whitcroft | d29eff7 | 2007-10-16 01:24:17 -0700 | [diff] [blame] | 485 | select SPARSEMEM_VMEMMAP_ENABLE |
Anton Blanchard | 45fb6ce | 2005-11-11 14:22:35 +1100 | [diff] [blame] | 486 | |
| 487 | config ARCH_SPARSEMEM_DEFAULT |
| 488 | def_bool y |
Benjamin Herrenschmidt | 78bde53 | 2007-02-13 11:46:06 +1100 | [diff] [blame] | 489 | depends on (SMP && PPC_PSERIES) || PPC_PS3 |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 490 | |
Benjamin Herrenschmidt | 5a1eb5c | 2009-10-30 15:03:54 +1100 | [diff] [blame] | 491 | config SYS_SUPPORTS_HUGETLBFS |
Becky Bruce | 41151e7 | 2011-06-28 09:54:48 +0000 | [diff] [blame] | 492 | bool |
Benjamin Herrenschmidt | 5a1eb5c | 2009-10-30 15:03:54 +1100 | [diff] [blame] | 493 | |
Mel Gorman | c67c3cb | 2006-09-27 01:49:49 -0700 | [diff] [blame] | 494 | source "mm/Kconfig" |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 495 | |
Mike Kravetz | 7e9191d | 2005-11-07 09:39:48 -0800 | [diff] [blame] | 496 | config ARCH_MEMORY_PROBE |
| 497 | def_bool y |
| 498 | depends on MEMORY_HOTPLUG |
| 499 | |
Andy Whitcroft | 7516795 | 2006-10-21 10:24:14 -0700 | [diff] [blame] | 500 | # Some NUMA nodes have memory ranges that span |
| 501 | # other nodes. Even though a pfn is valid and |
| 502 | # between a node's start and end pfns, it may not |
| 503 | # reside on that node. See memmap_init_zone() |
| 504 | # for details. |
| 505 | config NODES_SPAN_OTHER_NODES |
| 506 | def_bool y |
| 507 | depends on NEED_MULTIPLE_NODES |
| 508 | |
Benjamin Herrenschmidt | 16c2d47 | 2007-05-08 16:27:28 +1000 | [diff] [blame] | 509 | config PPC_HAS_HASH_64K |
| 510 | bool |
| 511 | depends on PPC64 |
| 512 | default n |
| 513 | |
Yuri Tikhonov | e124012 | 2009-01-29 01:40:44 +0000 | [diff] [blame] | 514 | config STDBINUTILS |
| 515 | bool "Using standard binutils settings" |
| 516 | depends on 44x |
| 517 | default y |
| 518 | help |
| 519 | Turning this option off allows you to select 256KB PAGE_SIZE on 44x. |
| 520 | Note, that kernel will be able to run only those applications, |
| 521 | which had been compiled using binutils later than 2.17.50.0.3 with |
| 522 | '-zmax-page-size' set to 256K (the default is 64K). Or, if using |
| 523 | the older binutils, you can patch them with a trivial patch, which |
| 524 | changes the ELF_MAXPAGESIZE definition from 0x10000 to 0x40000. |
| 525 | |
Ilya Yanok | ca9153a | 2008-12-11 04:55:41 +0300 | [diff] [blame] | 526 | choice |
| 527 | prompt "Page size" |
| 528 | default PPC_4K_PAGES |
Benjamin Herrenschmidt | 3c726f8 | 2005-11-07 11:06:55 +1100 | [diff] [blame] | 529 | help |
Ilya Yanok | ca9153a | 2008-12-11 04:55:41 +0300 | [diff] [blame] | 530 | Select the kernel logical page size. Increasing the page size |
| 531 | will reduce software overhead at each page boundary, allow |
| 532 | hardware prefetch mechanisms to be more effective, and allow |
| 533 | larger dma transfers increasing IO efficiency and reducing |
| 534 | overhead. However the utilization of memory will increase. |
| 535 | For example, each cached file will using a multiple of the |
| 536 | page size to hold its contents and the difference between the |
| 537 | end of file and the end of page is wasted. |
| 538 | |
| 539 | Some dedicated systems, such as software raid serving with |
| 540 | accelerated calculations, have shown significant increases. |
| 541 | |
| 542 | If you configure a 64 bit kernel for 64k pages but the |
| 543 | processor does not support them, then the kernel will simulate |
| 544 | them with 4k pages, loading them on demand, but with the |
| 545 | reduced software overhead and larger internal fragmentation. |
| 546 | For the 32 bit kernel, a large page option will not be offered |
| 547 | unless it is supported by the configured processor. |
| 548 | |
| 549 | If unsure, choose 4K_PAGES. |
| 550 | |
| 551 | config PPC_4K_PAGES |
| 552 | bool "4k page size" |
| 553 | |
| 554 | config PPC_16K_PAGES |
| 555 | bool "16k page size" if 44x |
| 556 | |
| 557 | config PPC_64K_PAGES |
Benjamin Herrenschmidt | 2d27cfd | 2009-07-23 23:15:59 +0000 | [diff] [blame] | 558 | bool "64k page size" if 44x || PPC_STD_MMU_64 || PPC_BOOK3E_64 |
Scott Wood | 9841c79 | 2014-01-17 18:36:38 -0600 | [diff] [blame] | 559 | depends on !PPC_FSL_BOOK3E |
Ilya Yanok | ca9153a | 2008-12-11 04:55:41 +0300 | [diff] [blame] | 560 | select PPC_HAS_HASH_64K if PPC_STD_MMU_64 |
| 561 | |
Yuri Tikhonov | e124012 | 2009-01-29 01:40:44 +0000 | [diff] [blame] | 562 | config PPC_256K_PAGES |
| 563 | bool "256k page size" if 44x |
Hugh Dickins | adf213c | 2009-04-06 11:01:15 +0000 | [diff] [blame] | 564 | depends on !STDBINUTILS |
Yuri Tikhonov | e124012 | 2009-01-29 01:40:44 +0000 | [diff] [blame] | 565 | help |
| 566 | Make the page size 256k. |
| 567 | |
| 568 | As the ELF standard only requires alignment to support page |
| 569 | sizes up to 64k, you will need to compile all of your user |
| 570 | space applications with a non-standard binutils settings |
| 571 | (see the STDBINUTILS description for details). |
| 572 | |
| 573 | Say N unless you know what you are doing. |
| 574 | |
Ilya Yanok | ca9153a | 2008-12-11 04:55:41 +0300 | [diff] [blame] | 575 | endchoice |
Benjamin Herrenschmidt | 3c726f8 | 2005-11-07 11:06:55 +1100 | [diff] [blame] | 576 | |
Stephen Rothwell | 53bcddb | 2008-04-11 11:11:56 +1000 | [diff] [blame] | 577 | config FORCE_MAX_ZONEORDER |
| 578 | int "Maximum zone order" |
Benjamin Herrenschmidt | 066c4b8 | 2009-07-21 15:25:53 +0000 | [diff] [blame] | 579 | range 9 64 if PPC64 && PPC_64K_PAGES |
| 580 | default "9" if PPC64 && PPC_64K_PAGES |
| 581 | range 13 64 if PPC64 && !PPC_64K_PAGES |
| 582 | default "13" if PPC64 && !PPC_64K_PAGES |
| 583 | range 9 64 if PPC32 && PPC_16K_PAGES |
| 584 | default "9" if PPC32 && PPC_16K_PAGES |
| 585 | range 7 64 if PPC32 && PPC_64K_PAGES |
| 586 | default "7" if PPC32 && PPC_64K_PAGES |
| 587 | range 5 64 if PPC32 && PPC_256K_PAGES |
| 588 | default "5" if PPC32 && PPC_256K_PAGES |
Johannes Berg | ebe40c5 | 2008-09-24 04:29:08 +0000 | [diff] [blame] | 589 | range 11 64 |
Stephen Rothwell | 53bcddb | 2008-04-11 11:11:56 +1000 | [diff] [blame] | 590 | default "11" |
| 591 | help |
| 592 | The kernel memory allocator divides physically contiguous memory |
| 593 | blocks into "zones", where each zone is a power of two number of |
| 594 | pages. This option selects the largest power of two that the kernel |
| 595 | keeps in the memory allocator. If you need to allocate very large |
| 596 | blocks of physically contiguous memory, then you may need to |
| 597 | increase this value. |
| 598 | |
| 599 | This config option is actually maximum order plus one. For example, |
| 600 | a value of 11 means that the largest free memory block is 2^10 pages. |
| 601 | |
| 602 | The page size is not necessarily 4KB. For example, on 64-bit |
| 603 | systems, 64KB pages can be enabled via CONFIG_PPC_64K_PAGES. Keep |
| 604 | this in mind when choosing a value for this option. |
| 605 | |
Paul Mackerras | fa28237 | 2008-01-24 08:35:13 +1100 | [diff] [blame] | 606 | config PPC_SUBPAGE_PROT |
| 607 | bool "Support setting protections for 4k subpages" |
Ilya Yanok | ca9153a | 2008-12-11 04:55:41 +0300 | [diff] [blame] | 608 | depends on PPC_STD_MMU_64 && PPC_64K_PAGES |
Paul Mackerras | fa28237 | 2008-01-24 08:35:13 +1100 | [diff] [blame] | 609 | help |
| 610 | This option adds support for a system call to allow user programs |
| 611 | to set access permissions (read/write, readonly, or no access) |
| 612 | on the 4k subpages of each 64k page. |
| 613 | |
Ian Munsie | e83d016 | 2014-10-08 19:54:50 +1100 | [diff] [blame] | 614 | config PPC_COPRO_BASE |
| 615 | bool |
| 616 | default n |
| 617 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 618 | config SCHED_SMT |
| 619 | bool "SMT (Hyperthreading) scheduler support" |
| 620 | depends on PPC64 && SMP |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 621 | help |
| 622 | SMT scheduler support improves the CPU scheduler's decision making |
| 623 | when dealing with POWER5 cpus at a cost of slightly increased |
| 624 | overhead in some places. If unsure say N here. |
| 625 | |
Michael Neuling | b92a66a | 2012-09-10 00:35:26 +0000 | [diff] [blame] | 626 | config PPC_DENORMALISATION |
| 627 | bool "PowerPC denormalisation exception handling" |
| 628 | depends on PPC_BOOK3S_64 |
Anton Blanchard | 4e90a2a | 2013-07-31 16:31:26 +1000 | [diff] [blame] | 629 | default "y" if PPC_POWERNV |
Michael Neuling | b92a66a | 2012-09-10 00:35:26 +0000 | [diff] [blame] | 630 | ---help--- |
| 631 | Add support for handling denormalisation of single precision |
| 632 | values. Useful for bare metal only. If unsure say Y here. |
| 633 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 634 | config CMDLINE_BOOL |
| 635 | bool "Default bootloader kernel arguments" |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 636 | |
| 637 | config CMDLINE |
| 638 | string "Initial kernel command string" |
| 639 | depends on CMDLINE_BOOL |
| 640 | default "console=ttyS0,9600 console=tty0 root=/dev/sda2" |
| 641 | help |
| 642 | On some platforms, there is currently no way for the boot loader to |
| 643 | pass arguments to the kernel. For these platforms, you can supply |
| 644 | some command-line options at build time by entering them here. In |
| 645 | most cases you will need to specify the root device here. |
| 646 | |
Sebastian Siewior | eb3b80f | 2014-02-20 21:48:17 +0100 | [diff] [blame] | 647 | config CMDLINE_FORCE |
| 648 | bool "Always use the default kernel command string" |
| 649 | depends on CMDLINE_BOOL |
| 650 | help |
| 651 | Always use the default kernel command string, even if the boot |
| 652 | loader passes other arguments to the kernel. |
| 653 | This is useful if you cannot or don't want to change the |
| 654 | command-line options your boot loader passes to the kernel. |
| 655 | |
Grant Likely | c356aa4 | 2008-07-09 09:41:52 -0600 | [diff] [blame] | 656 | config EXTRA_TARGETS |
| 657 | string "Additional default image types" |
| 658 | help |
| 659 | List additional targets to be built by the bootwrapper here (separated |
| 660 | by spaces). This is useful for targets that depend of device tree |
| 661 | files in the .dts directory. |
| 662 | |
| 663 | Targets in this list will be build as part of the default build |
| 664 | target, or when the user does a 'make zImage' or a |
| 665 | 'make zImage.initrd'. |
| 666 | |
| 667 | If unsure, leave blank |
| 668 | |
Johannes Berg | b28f508 | 2008-01-15 23:17:00 -0500 | [diff] [blame] | 669 | config ARCH_WANTS_FREEZER_CONTROL |
| 670 | def_bool y |
| 671 | depends on ADB_PMU |
| 672 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 673 | source kernel/power/Kconfig |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 674 | |
| 675 | config SECCOMP |
| 676 | bool "Enable seccomp to safely compute untrusted bytecode" |
| 677 | depends on PROC_FS |
| 678 | default y |
| 679 | help |
| 680 | This kernel feature is useful for number crunching applications |
| 681 | that may need to compute untrusted bytecode during their |
| 682 | execution. By using pipes or other transports made available to |
| 683 | the process as file descriptors supporting the read/write |
| 684 | syscalls, it's possible to isolate those applications in |
| 685 | their own address space using seccomp. Once seccomp is |
| 686 | enabled via /proc/<pid>/seccomp, it cannot be disabled |
| 687 | and the task is only allowed to execute a few safe syscalls |
| 688 | defined by each seccomp mode. |
| 689 | |
| 690 | If unsure, say Y. Only embedded should say N here. |
| 691 | |
| 692 | endmenu |
| 693 | |
| 694 | config ISA_DMA_API |
| 695 | bool |
Stephen Rothwell | 3d066d7 | 2012-02-22 14:10:12 +0000 | [diff] [blame] | 696 | default PCI |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 697 | |
| 698 | menu "Bus options" |
| 699 | |
| 700 | config ISA |
| 701 | bool "Support for ISA-bus hardware" |
Paul Bolle | 933ee71 | 2013-03-27 00:47:03 +0000 | [diff] [blame] | 702 | depends on PPC_CHRP |
Paul Mackerras | f9bd170 | 2005-10-26 16:47:42 +1000 | [diff] [blame] | 703 | select PPC_I8259 |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 704 | help |
| 705 | Find out whether you have ISA slots on your motherboard. ISA is the |
| 706 | name of a bus system, i.e. the way the CPU talks to the other stuff |
| 707 | inside your box. If you have an Apple machine, say N here; if you |
Paul Bolle | 933ee71 | 2013-03-27 00:47:03 +0000 | [diff] [blame] | 708 | have an IBM RS/6000 or pSeries machine, say Y. If you have an |
| 709 | embedded board, consult your board documentation. |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 710 | |
Christoph Lameter | 5ac6da6 | 2007-02-10 01:43:14 -0800 | [diff] [blame] | 711 | config ZONE_DMA |
| 712 | bool |
| 713 | default y |
| 714 | |
FUJITA Tomonori | af407c6 | 2010-03-10 15:23:27 -0800 | [diff] [blame] | 715 | config NEED_DMA_MAP_STATE |
| 716 | def_bool (PPC64 || NOT_COHERENT_CACHE) |
| 717 | |
FUJITA Tomonori | e32205e | 2010-05-26 14:44:33 -0700 | [diff] [blame] | 718 | config NEED_SG_DMA_LENGTH |
| 719 | def_bool y |
| 720 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 721 | config GENERIC_ISA_DMA |
| 722 | bool |
Anton Vorontsov | 1927445 | 2010-07-15 07:38:16 +0000 | [diff] [blame] | 723 | depends on ISA_DMA_API |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 724 | default y |
| 725 | |
Paul Mackerras | 25635c7 | 2005-10-26 16:36:55 +1000 | [diff] [blame] | 726 | config PPC_INDIRECT_PCI |
| 727 | bool |
| 728 | depends on PCI |
Becky Bruce | 63dafe5 | 2006-01-14 16:57:39 -0600 | [diff] [blame] | 729 | default y if 40x || 44x |
Paul Mackerras | 25635c7 | 2005-10-26 16:36:55 +1000 | [diff] [blame] | 730 | default n |
| 731 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 732 | config EISA |
| 733 | bool |
| 734 | |
| 735 | config SBUS |
| 736 | bool |
| 737 | |
Kumar Gala | 08264cb | 2006-01-10 21:43:56 -0600 | [diff] [blame] | 738 | config FSL_SOC |
| 739 | bool |
| 740 | |
Roy Zang | 55c4499 | 2007-07-10 18:44:34 +0800 | [diff] [blame] | 741 | config FSL_PCI |
| 742 | bool |
| 743 | select PPC_INDIRECT_PCI |
Kumar Gala | d083911 | 2009-01-28 13:25:29 -0600 | [diff] [blame] | 744 | select PCI_QUIRKS |
Roy Zang | 55c4499 | 2007-07-10 18:44:34 +0800 | [diff] [blame] | 745 | |
Anton Vorontsov | 4ffd695 | 2009-09-16 01:43:57 +0400 | [diff] [blame] | 746 | config FSL_PMC |
| 747 | bool |
| 748 | default y |
| 749 | depends on SUSPEND && (PPC_85xx || PPC_86xx) |
| 750 | help |
| 751 | Freescale MPC85xx/MPC86xx power management controller support |
| 752 | (suspend/resume). For MPC83xx see platforms/83xx/suspend.c |
| 753 | |
Victor Gallardo | d164f6d | 2010-10-08 10:25:27 +0000 | [diff] [blame] | 754 | config PPC4xx_CPM |
| 755 | bool |
| 756 | default y |
| 757 | depends on SUSPEND && (44x || 40x) |
| 758 | help |
| 759 | PPC4xx Clock Power Management (CPM) support (suspend/resume). |
| 760 | It also enables support for two different idle states (idle-wait |
| 761 | and idle-doze). |
| 762 | |
Stefan Roese | 2a70691 | 2008-03-26 22:39:50 +1100 | [diff] [blame] | 763 | config 4xx_SOC |
| 764 | bool |
| 765 | |
Anton Vorontsov | acaa7aa | 2008-04-11 21:03:40 +0400 | [diff] [blame] | 766 | config FSL_LBC |
Roy Zang | 3ab8f2a | 2010-10-18 15:22:31 +0800 | [diff] [blame] | 767 | bool "Freescale Local Bus support" |
| 768 | depends on FSL_SOC |
Anton Vorontsov | acaa7aa | 2008-04-11 21:03:40 +0400 | [diff] [blame] | 769 | help |
Roy Zang | 3ab8f2a | 2010-10-18 15:22:31 +0800 | [diff] [blame] | 770 | Enables reporting of errors from the Freescale local bus |
| 771 | controller. Also contains some common code used by |
| 772 | drivers for specific local bus peripherals. |
Anton Vorontsov | acaa7aa | 2008-04-11 21:03:40 +0400 | [diff] [blame] | 773 | |
Anton Vorontsov | 83ff9dc | 2008-05-23 20:38:54 +0400 | [diff] [blame] | 774 | config FSL_GTM |
| 775 | bool |
| 776 | depends on PPC_83xx || QUICC_ENGINE || CPM2 |
| 777 | help |
| 778 | Freescale General-purpose Timers support |
| 779 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 780 | # Yes MCA RS/6000s exist but Linux-PPC does not currently support any |
| 781 | config MCA |
| 782 | bool |
| 783 | |
John Rigby | b500563 | 2008-06-26 11:07:56 -0600 | [diff] [blame] | 784 | # Platforms that what PCI turned unconditionally just do select PCI |
| 785 | # in their config node. Platforms that want to choose at config |
| 786 | # time should select PPC_PCI_CHOICE |
| 787 | config PPC_PCI_CHOICE |
| 788 | bool |
| 789 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 790 | config PCI |
John Rigby | b500563 | 2008-06-26 11:07:56 -0600 | [diff] [blame] | 791 | bool "PCI support" if PPC_PCI_CHOICE |
| 792 | default y if !40x && !CPM2 && !8xx && !PPC_83xx \ |
Albert Herranz | bcc4859 | 2009-12-12 06:31:39 +0000 | [diff] [blame] | 793 | && !PPC_85xx && !PPC_86xx && !GAMECUBE_COMMON |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 794 | default PCI_QSPAN if !4xx && !CPM2 && 8xx |
Michael S. Tsirkin | 335b8cf | 2011-11-24 21:06:41 +0200 | [diff] [blame] | 795 | select GENERIC_PCI_IOMAP |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 796 | help |
| 797 | Find out whether your system includes a PCI bus. PCI is the name of |
| 798 | a bus system, i.e. the way the CPU talks to the other stuff inside |
| 799 | your box. If you say Y here, the kernel will include drivers and |
| 800 | infrastructure code to support PCI bus devices. |
| 801 | |
| 802 | config PCI_DOMAINS |
Matthew Wilcox | 36e2359 | 2007-07-10 10:54:40 -0600 | [diff] [blame] | 803 | def_bool PCI |
| 804 | |
| 805 | config PCI_SYSCALL |
| 806 | def_bool PCI |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 807 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 808 | config PCI_QSPAN |
| 809 | bool "QSpan PCI" |
| 810 | depends on !4xx && !CPM2 && 8xx |
Paul Mackerras | f9bd170 | 2005-10-26 16:47:42 +1000 | [diff] [blame] | 811 | select PPC_I8259 |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 812 | help |
| 813 | Say Y here if you have a system based on a Motorola 8xx-series |
| 814 | embedded processor with a QSPAN PCI interface, otherwise say N. |
| 815 | |
| 816 | config PCI_8260 |
| 817 | bool |
| 818 | depends on PCI && 8260 |
Paul Mackerras | 25635c7 | 2005-10-26 16:36:55 +1000 | [diff] [blame] | 819 | select PPC_INDIRECT_PCI |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 820 | default y |
| 821 | |
Jake Moilanen | bb53bb3 | 2006-06-07 16:05:46 -0500 | [diff] [blame] | 822 | source "drivers/pci/pcie/Kconfig" |
| 823 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 824 | source "drivers/pci/Kconfig" |
| 825 | |
| 826 | source "drivers/pcmcia/Kconfig" |
| 827 | |
| 828 | source "drivers/pci/hotplug/Kconfig" |
| 829 | |
Zhang Wei | f1f389d | 2008-04-18 13:33:39 -0700 | [diff] [blame] | 830 | config HAS_RAPIDIO |
| 831 | bool |
| 832 | default n |
| 833 | |
| 834 | config RAPIDIO |
Alexandre Bounine | 56abde7 | 2014-01-23 15:56:04 -0800 | [diff] [blame] | 835 | tristate "RapidIO support" |
Alexandre Bounine | 388b78a | 2011-03-23 16:43:03 -0700 | [diff] [blame] | 836 | depends on HAS_RAPIDIO || PCI |
Zhang Wei | f1f389d | 2008-04-18 13:33:39 -0700 | [diff] [blame] | 837 | help |
| 838 | If you say Y here, the kernel will include drivers and |
| 839 | infrastructure code to support RapidIO interconnect devices. |
| 840 | |
Alexandre Bounine | 388b78a | 2011-03-23 16:43:03 -0700 | [diff] [blame] | 841 | config FSL_RIO |
| 842 | bool "Freescale Embedded SRIO Controller support" |
Alexandre Bounine | 56abde7 | 2014-01-23 15:56:04 -0800 | [diff] [blame] | 843 | depends on RAPIDIO = y && HAS_RAPIDIO |
Alexandre Bounine | 388b78a | 2011-03-23 16:43:03 -0700 | [diff] [blame] | 844 | default "n" |
| 845 | ---help--- |
| 846 | Include support for RapidIO controller on Freescale embedded |
| 847 | processors (MPC8548, MPC8641, etc). |
| 848 | |
Zhang Wei | f1f389d | 2008-04-18 13:33:39 -0700 | [diff] [blame] | 849 | source "drivers/rapidio/Kconfig" |
| 850 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 851 | endmenu |
| 852 | |
Suzuki Poulose | 0f890c8 | 2011-12-14 22:57:15 +0000 | [diff] [blame] | 853 | config NONSTATIC_KERNEL |
| 854 | bool |
| 855 | default n |
| 856 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 857 | menu "Advanced setup" |
| 858 | depends on PPC32 |
| 859 | |
| 860 | config ADVANCED_OPTIONS |
| 861 | bool "Prompt for advanced kernel configuration options" |
| 862 | help |
| 863 | This option will enable prompting for a variety of advanced kernel |
| 864 | configuration options. These options can cause the kernel to not |
| 865 | work if they are set incorrectly, but can be used to optimize certain |
| 866 | aspects of kernel memory management. |
| 867 | |
| 868 | Unless you know what you are doing, say N here. |
| 869 | |
| 870 | comment "Default settings for advanced configuration options are used" |
| 871 | depends on !ADVANCED_OPTIONS |
| 872 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 873 | config LOWMEM_SIZE_BOOL |
| 874 | bool "Set maximum low memory" |
| 875 | depends on ADVANCED_OPTIONS |
| 876 | help |
| 877 | This option allows you to set the maximum amount of memory which |
| 878 | will be used as "low memory", that is, memory which the kernel can |
| 879 | access directly, without having to set up a kernel virtual mapping. |
| 880 | This can be useful in optimizing the layout of kernel virtual |
| 881 | memory. |
| 882 | |
| 883 | Say N here unless you know what you are doing. |
| 884 | |
| 885 | config LOWMEM_SIZE |
| 886 | hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL |
| 887 | default "0x30000000" |
| 888 | |
Trent Piepho | 9605146 | 2008-12-08 19:34:58 -0800 | [diff] [blame] | 889 | config LOWMEM_CAM_NUM_BOOL |
| 890 | bool "Set number of CAMs to use to map low memory" |
| 891 | depends on ADVANCED_OPTIONS && FSL_BOOKE |
| 892 | help |
| 893 | This option allows you to set the maximum number of CAM slots that |
| 894 | will be used to map low memory. There are a limited number of slots |
| 895 | available and even more limited number that will fit in the L1 MMU. |
| 896 | However, using more entries will allow mapping more low memory. This |
| 897 | can be useful in optimizing the layout of kernel virtual memory. |
| 898 | |
| 899 | Say N here unless you know what you are doing. |
| 900 | |
| 901 | config LOWMEM_CAM_NUM |
Josh Boyer | 9b71dbd | 2009-03-31 08:05:50 -0400 | [diff] [blame] | 902 | depends on FSL_BOOKE |
Trent Piepho | 9605146 | 2008-12-08 19:34:58 -0800 | [diff] [blame] | 903 | int "Number of CAMs to use to map low memory" if LOWMEM_CAM_NUM_BOOL |
| 904 | default 3 |
| 905 | |
Suzuki Poulose | 0f890c8 | 2011-12-14 22:57:15 +0000 | [diff] [blame] | 906 | config DYNAMIC_MEMSTART |
Kees Cook | 642e56f | 2013-01-16 18:53:25 -0800 | [diff] [blame] | 907 | bool "Enable page aligned dynamic load address for kernel" |
| 908 | depends on ADVANCED_OPTIONS && FLATMEM && (FSL_BOOKE || 44x) |
Suzuki Poulose | 0f890c8 | 2011-12-14 22:57:15 +0000 | [diff] [blame] | 909 | select NONSTATIC_KERNEL |
Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 910 | help |
Suzuki Poulose | 0f890c8 | 2011-12-14 22:57:15 +0000 | [diff] [blame] | 911 | This option enables the kernel to be loaded at any page aligned |
| 912 | physical address. The kernel creates a mapping from KERNELBASE to |
| 913 | the address where the kernel is loaded. The page size here implies |
| 914 | the TLB page size of the mapping for kernel on the particular platform. |
| 915 | Please refer to the init code for finding the TLB page size. |
Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 916 | |
Suzuki Poulose | 0f890c8 | 2011-12-14 22:57:15 +0000 | [diff] [blame] | 917 | DYNAMIC_MEMSTART is an easy way of implementing pseudo-RELOCATABLE |
| 918 | kernel image, where the only restriction is the page aligned kernel |
| 919 | load address. When this option is enabled, the compile time physical |
| 920 | address CONFIG_PHYSICAL_START is ignored. |
Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 921 | |
Suzuki Poulose | 9c5f7d3 | 2011-12-14 22:58:12 +0000 | [diff] [blame] | 922 | This option is overridden by CONFIG_RELOCATABLE |
| 923 | |
Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 924 | config RELOCATABLE |
Kees Cook | 642e56f | 2013-01-16 18:53:25 -0800 | [diff] [blame] | 925 | bool "Build a relocatable kernel" |
Kevin Hao | dd18969 | 2013-12-24 15:12:06 +0800 | [diff] [blame] | 926 | depends on ADVANCED_OPTIONS && FLATMEM && (44x || FSL_BOOKE) |
Suzuki Poulose | 9c5f7d3 | 2011-12-14 22:58:12 +0000 | [diff] [blame] | 927 | select NONSTATIC_KERNEL |
Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 928 | help |
| 929 | This builds a kernel image that is capable of running at the |
Suzuki Poulose | 9c5f7d3 | 2011-12-14 22:58:12 +0000 | [diff] [blame] | 930 | location the kernel is loaded at, without any alignment restrictions. |
| 931 | This feature is a superset of DYNAMIC_MEMSTART and hence overrides it. |
Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 932 | |
| 933 | One use is for the kexec on panic case where the recovery kernel |
| 934 | must live at a different physical address than the primary |
| 935 | kernel. |
| 936 | |
| 937 | Note: If CONFIG_RELOCATABLE=y, then the kernel runs from the address |
| 938 | it has been loaded at and the compile time physical addresses |
| 939 | CONFIG_PHYSICAL_START is ignored. However CONFIG_PHYSICAL_START |
| 940 | setting can still be useful to bootwrappers that need to know the |
Suzuki Poulose | 9c5f7d3 | 2011-12-14 22:58:12 +0000 | [diff] [blame] | 941 | load address of the kernel (eg. u-boot/mkimage). |
| 942 | |
| 943 | config RELOCATABLE_PPC32 |
| 944 | def_bool y |
| 945 | depends on PPC32 && RELOCATABLE |
Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 946 | |
| 947 | config PAGE_OFFSET_BOOL |
| 948 | bool "Set custom page offset address" |
| 949 | depends on ADVANCED_OPTIONS |
| 950 | help |
| 951 | This option allows you to set the kernel virtual address at which |
| 952 | the kernel will map low memory. This can be useful in optimizing |
| 953 | the virtual memory layout of the system. |
| 954 | |
| 955 | Say N here unless you know what you are doing. |
| 956 | |
| 957 | config PAGE_OFFSET |
| 958 | hex "Virtual address of memory base" if PAGE_OFFSET_BOOL |
| 959 | default "0xc0000000" |
| 960 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 961 | config KERNEL_START_BOOL |
| 962 | bool "Set custom kernel base address" |
| 963 | depends on ADVANCED_OPTIONS |
| 964 | help |
| 965 | This option allows you to set the kernel virtual address at which |
Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 966 | the kernel will be loaded. Normally this should match PAGE_OFFSET |
| 967 | however there are times (like kdump) that one might not want them |
| 968 | to be the same. |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 969 | |
| 970 | Say N here unless you know what you are doing. |
| 971 | |
| 972 | config KERNEL_START |
| 973 | hex "Virtual address of kernel base" if KERNEL_START_BOOL |
Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 974 | default PAGE_OFFSET if PAGE_OFFSET_BOOL |
Suzuki Poulose | 0f890c8 | 2011-12-14 22:57:15 +0000 | [diff] [blame] | 975 | default "0xc2000000" if CRASH_DUMP && !NONSTATIC_KERNEL |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 976 | default "0xc0000000" |
| 977 | |
Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 978 | config PHYSICAL_START_BOOL |
| 979 | bool "Set physical address where the kernel is loaded" |
| 980 | depends on ADVANCED_OPTIONS && FLATMEM && FSL_BOOKE |
| 981 | help |
| 982 | This gives the physical address where the kernel is loaded. |
| 983 | |
| 984 | Say N here unless you know what you are doing. |
| 985 | |
| 986 | config PHYSICAL_START |
| 987 | hex "Physical address where the kernel is loaded" if PHYSICAL_START_BOOL |
Suzuki Poulose | 0f890c8 | 2011-12-14 22:57:15 +0000 | [diff] [blame] | 988 | default "0x02000000" if PPC_STD_MMU && CRASH_DUMP && !NONSTATIC_KERNEL |
Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 989 | default "0x00000000" |
| 990 | |
| 991 | config PHYSICAL_ALIGN |
| 992 | hex |
Trent Piepho | c8f3570 | 2008-12-08 19:34:59 -0800 | [diff] [blame] | 993 | default "0x04000000" if FSL_BOOKE |
Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 994 | help |
| 995 | This value puts the alignment restrictions on physical address |
| 996 | where kernel is loaded and run from. Kernel is compiled for an |
| 997 | address which meets above alignment restriction. |
| 998 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 999 | config TASK_SIZE_BOOL |
| 1000 | bool "Set custom user task size" |
| 1001 | depends on ADVANCED_OPTIONS |
| 1002 | help |
| 1003 | This option allows you to set the amount of virtual address space |
| 1004 | allocated to user tasks. This can be useful in optimizing the |
| 1005 | virtual memory layout of the system. |
| 1006 | |
| 1007 | Say N here unless you know what you are doing. |
| 1008 | |
| 1009 | config TASK_SIZE |
| 1010 | hex "Size of user task space" if TASK_SIZE_BOOL |
Paul Bolle | 933ee71 | 2013-03-27 00:47:03 +0000 | [diff] [blame] | 1011 | default "0x80000000" if PPC_8xx |
Kumar Gala | 4d9e5510 | 2007-10-11 13:40:21 -0500 | [diff] [blame] | 1012 | default "0xc0000000" |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 1013 | |
Benjamin Herrenschmidt | 84532a0 | 2009-05-27 13:33:14 +1000 | [diff] [blame] | 1014 | config CONSISTENT_SIZE_BOOL |
| 1015 | bool "Set custom consistent memory pool size" |
| 1016 | depends on ADVANCED_OPTIONS && NOT_COHERENT_CACHE |
| 1017 | help |
| 1018 | This option allows you to set the size of the |
| 1019 | consistent memory pool. This pool of virtual memory |
| 1020 | is used to make consistent memory allocations. |
| 1021 | |
| 1022 | config CONSISTENT_SIZE |
| 1023 | hex "Size of consistent memory pool" if CONSISTENT_SIZE_BOOL |
| 1024 | default "0x00200000" if NOT_COHERENT_CACHE |
| 1025 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 1026 | config PIN_TLB |
| 1027 | bool "Pinned Kernel TLBs (860 ONLY)" |
| 1028 | depends on ADVANCED_OPTIONS && 8xx |
| 1029 | endmenu |
| 1030 | |
Stephen Rothwell | cabb558 | 2005-09-30 16:16:52 +1000 | [diff] [blame] | 1031 | if PPC64 |
Paul Mackerras | 549e815 | 2008-08-30 11:43:47 +1000 | [diff] [blame] | 1032 | config RELOCATABLE |
| 1033 | bool "Build a relocatable kernel" |
Guenter Roeck | fb43e84 | 2014-06-30 11:45:30 -0700 | [diff] [blame] | 1034 | depends on !COMPILE_TEST |
Suzuki Poulose | 0f890c8 | 2011-12-14 22:57:15 +0000 | [diff] [blame] | 1035 | select NONSTATIC_KERNEL |
Paul Mackerras | 549e815 | 2008-08-30 11:43:47 +1000 | [diff] [blame] | 1036 | help |
| 1037 | This builds a kernel image that is capable of running anywhere |
| 1038 | in the RMA (real memory area) at any 16k-aligned base address. |
| 1039 | The kernel is linked as a position-independent executable (PIE) |
| 1040 | and contains dynamic relocations which are processed early |
| 1041 | in the bootup process. |
| 1042 | |
| 1043 | One use is for the kexec on panic case where the recovery kernel |
| 1044 | must live at a different physical address than the primary |
| 1045 | kernel. |
| 1046 | |
Paul Mackerras | bdbc29c | 2013-08-27 16:07:49 +1000 | [diff] [blame] | 1047 | # This value must have zeroes in the bottom 60 bits otherwise lots will break |
Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 1048 | config PAGE_OFFSET |
Stephen Rothwell | cabb558 | 2005-09-30 16:16:52 +1000 | [diff] [blame] | 1049 | hex |
Stephen Rothwell | eeb2d21 | 2005-09-30 17:24:15 +1000 | [diff] [blame] | 1050 | default "0xc000000000000000" |
Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 1051 | config KERNEL_START |
| 1052 | hex |
Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 1053 | default "0xc000000000000000" |
| 1054 | config PHYSICAL_START |
| 1055 | hex |
Kumar Gala | 37dd2ba | 2008-04-22 04:22:34 +1000 | [diff] [blame] | 1056 | default "0x00000000" |
Stephen Rothwell | cabb558 | 2005-09-30 16:16:52 +1000 | [diff] [blame] | 1057 | endif |
| 1058 | |
Michael Ellerman | a4da0d5 | 2013-10-11 14:07:57 +1100 | [diff] [blame] | 1059 | config ARCH_RANDOM |
| 1060 | def_bool n |
| 1061 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 1062 | source "net/Kconfig" |
| 1063 | |
| 1064 | source "drivers/Kconfig" |
| 1065 | |
| 1066 | source "fs/Kconfig" |
| 1067 | |
Li Yang | 9865853 | 2006-10-03 23:10:46 -0500 | [diff] [blame] | 1068 | source "arch/powerpc/sysdev/qe_lib/Kconfig" |
| 1069 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 1070 | source "lib/Kconfig" |
| 1071 | |
Paul Mackerras | 14cf11a | 2005-09-26 16:04:21 +1000 | [diff] [blame] | 1072 | source "arch/powerpc/Kconfig.debug" |
| 1073 | |
| 1074 | source "security/Kconfig" |
| 1075 | |
| 1076 | config KEYS_COMPAT |
| 1077 | bool |
| 1078 | depends on COMPAT && KEYS |
| 1079 | default y |
| 1080 | |
| 1081 | source "crypto/Kconfig" |
Domen Puncer | 6f66828 | 2007-09-21 00:00:11 +1000 | [diff] [blame] | 1082 | |
Sylvain Munaut | 1088a20 | 2007-09-16 20:53:25 +1000 | [diff] [blame] | 1083 | config PPC_LIB_RHEAP |
| 1084 | bool |
| 1085 | |
Hollis Blanchard | bbf45ba | 2008-04-16 23:28:09 -0500 | [diff] [blame] | 1086 | source "arch/powerpc/kvm/Kconfig" |