Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 1 | # For a description of the syntax of this configuration file, |
Chris Metcalf | 5fb682b | 2011-02-28 15:58:39 -0500 | [diff] [blame] | 2 | # see Documentation/kbuild/kconfig-language.txt. |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 3 | |
Thomas Gleixner | 8df27406 | 2011-01-19 20:44:43 +0100 | [diff] [blame] | 4 | config TILE |
| 5 | def_bool y |
Zhigang Lu | 8d61dd7 | 2014-01-28 10:03:50 +0800 | [diff] [blame] | 6 | select HAVE_PERF_EVENTS |
| 7 | select USE_PMC if PERF_EVENTS |
Chris Metcalf | 41bb38f | 2012-06-15 15:23:06 -0400 | [diff] [blame] | 8 | select HAVE_DMA_API_DEBUG |
Thomas Gleixner | 8df27406 | 2011-01-19 20:44:43 +0100 | [diff] [blame] | 9 | select HAVE_KVM if !TILEGX |
| 10 | select GENERIC_FIND_FIRST_BIT |
Catalin Marinas | 7ac57a8 | 2012-10-08 16:28:16 -0700 | [diff] [blame] | 11 | select SYSCTL_EXCEPTION_TRACE |
Thomas Gleixner | 8df27406 | 2011-01-19 20:44:43 +0100 | [diff] [blame] | 12 | select CC_OPTIMIZE_FOR_SIZE |
Catalin Marinas | b69ec42 | 2012-10-08 16:28:11 -0700 | [diff] [blame] | 13 | select HAVE_DEBUG_KMEMLEAK |
Thomas Gleixner | 8df27406 | 2011-01-19 20:44:43 +0100 | [diff] [blame] | 14 | select GENERIC_IRQ_PROBE |
| 15 | select GENERIC_PENDING_IRQ if SMP |
Thomas Gleixner | 61a1674 | 2011-03-25 14:21:17 +0000 | [diff] [blame] | 16 | select GENERIC_IRQ_SHOW |
Catalin Marinas | 9b2a60c | 2012-10-08 16:28:13 -0700 | [diff] [blame] | 17 | select HAVE_DEBUG_BUGVERBOSE |
Stephen Rothwell | 4febd95 | 2013-03-07 15:48:16 +1100 | [diff] [blame] | 18 | select VIRT_TO_BUS |
Chris Metcalf | f133ecc | 2011-05-26 12:40:09 -0400 | [diff] [blame] | 19 | select SYS_HYPERVISOR |
Stephen Boyd | 446f24d | 2013-04-30 15:28:42 -0700 | [diff] [blame] | 20 | select ARCH_HAS_DEBUG_STRICT_USER_COPY_CHECKS |
Dan Williams | 21266be | 2015-11-19 18:19:29 -0800 | [diff] [blame] | 21 | select ARCH_HAS_DEVMEM_IS_ALLOWED |
Chris Metcalf | 8d69514 | 2012-03-27 13:47:57 -0400 | [diff] [blame] | 22 | select ARCH_HAVE_NMI_SAFE_CMPXCHG |
Anna-Maria Gleixner | 4ec008d | 2012-05-18 16:45:54 +0000 | [diff] [blame] | 23 | select GENERIC_CLOCKEVENTS |
David Howells | 786d35d | 2012-09-28 14:31:03 +0930 | [diff] [blame] | 24 | select MODULES_USE_ELF_RELA |
Simon Marchi | 969f6fe | 2012-12-22 00:21:12 -0500 | [diff] [blame] | 25 | select HAVE_ARCH_TRACEHOOK |
Simon Marchi | ef567f2 | 2013-01-21 19:54:57 -0500 | [diff] [blame] | 26 | select HAVE_SYSCALL_TRACEPOINTS |
Chris Metcalf | 47ad7b9 | 2015-05-08 10:27:35 -0400 | [diff] [blame] | 27 | select USER_STACKTRACE_SUPPORT |
Chris Metcalf | adf6d9b | 2013-02-01 12:37:48 -0500 | [diff] [blame] | 28 | select ARCH_HAS_ATOMIC64_DEC_IF_POSITIVE |
Dave Hansen | d1a1dc0 | 2013-07-01 13:04:42 -0700 | [diff] [blame] | 29 | select HAVE_DEBUG_STACKOVERFLOW |
Chris Metcalf | 49cf78e | 2013-08-12 15:00:51 -0400 | [diff] [blame] | 30 | select ARCH_WANT_FRAME_POINTERS |
Chris Metcalf | 49e4e15 | 2015-03-23 14:23:58 -0400 | [diff] [blame] | 31 | select HAVE_CONTEXT_TRACKING |
Borislav Petkov | b01aec9 | 2015-05-21 19:59:31 +0200 | [diff] [blame] | 32 | select EDAC_SUPPORT |
Chris Metcalf | 5bf6c07 | 2015-04-30 15:12:42 -0400 | [diff] [blame] | 33 | select GENERIC_STRNCPY_FROM_USER |
| 34 | select GENERIC_STRNLEN_USER |
Chris Metcalf | a0ddef8 | 2015-07-22 14:30:14 -0400 | [diff] [blame] | 35 | select HAVE_ARCH_SECCOMP_FILTER |
Thomas Gleixner | 8df27406 | 2011-01-19 20:44:43 +0100 | [diff] [blame] | 36 | |
| 37 | # FIXME: investigate whether we need/want these options. |
| 38 | # select HAVE_IOREMAP_PROT |
Chris Metcalf | 5fb682b | 2011-02-28 15:58:39 -0500 | [diff] [blame] | 39 | # select HAVE_OPTPROBES |
| 40 | # select HAVE_REGS_AND_STACK_ACCESS_API |
| 41 | # select HAVE_HW_BREAKPOINT |
| 42 | # select PERF_EVENTS |
| 43 | # select HAVE_USER_RETURN_NOTIFIER |
| 44 | # config NO_BOOTMEM |
| 45 | # config ARCH_SUPPORTS_DEBUG_PAGEALLOC |
| 46 | # config HUGETLB_PAGE_SIZE_VARIABLE |
Thomas Gleixner | 8df27406 | 2011-01-19 20:44:43 +0100 | [diff] [blame] | 47 | |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 48 | config MMU |
| 49 | def_bool y |
| 50 | |
| 51 | config GENERIC_CSUM |
| 52 | def_bool y |
| 53 | |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 54 | config HAVE_ARCH_ALLOC_REMAP |
| 55 | def_bool y |
| 56 | |
| 57 | config HAVE_SETUP_PER_CPU_AREA |
| 58 | def_bool y |
| 59 | |
| 60 | config NEED_PER_CPU_PAGE_FIRST_CHUNK |
Chris Metcalf | 5fb682b | 2011-02-28 15:58:39 -0500 | [diff] [blame] | 61 | def_bool y |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 62 | |
| 63 | config SYS_SUPPORTS_HUGETLBFS |
| 64 | def_bool y |
| 65 | |
Chris Metcalf | 621b195 | 2012-04-01 14:04:21 -0400 | [diff] [blame] | 66 | # Support for additional huge page sizes besides HPAGE_SIZE. |
| 67 | # The software support is currently only present in the TILE-Gx |
| 68 | # hypervisor. TILEPro in any case does not support page sizes |
| 69 | # larger than the default HPAGE_SIZE. |
| 70 | config HUGETLB_SUPER_PAGES |
| 71 | depends on HUGETLB_PAGE && TILEGX |
| 72 | def_bool y |
| 73 | |
Chris Metcalf | 4a556f4 | 2013-08-07 15:33:32 -0400 | [diff] [blame] | 74 | config GENERIC_TIME_VSYSCALL |
| 75 | def_bool y |
| 76 | |
Zhigang Lu | 8e3441e | 2014-01-27 15:11:07 +0800 | [diff] [blame] | 77 | # Enable PMC if PERF_EVENTS, OPROFILE, or WATCHPOINTS are enabled. |
| 78 | config USE_PMC |
| 79 | bool |
| 80 | |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 81 | # FIXME: tilegx can implement a more efficient rwsem. |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 82 | config RWSEM_GENERIC_SPINLOCK |
| 83 | def_bool y |
| 84 | |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 85 | # We only support gcc 4.4 and above, so this should work. |
| 86 | config ARCH_SUPPORTS_OPTIMIZED_INLINING |
| 87 | def_bool y |
| 88 | |
| 89 | config ARCH_PHYS_ADDR_T_64BIT |
| 90 | def_bool y |
| 91 | |
FUJITA Tomonori | d31eb51 | 2010-10-27 15:32:58 -0700 | [diff] [blame] | 92 | config ARCH_DMA_ADDR_T_64BIT |
| 93 | def_bool y |
| 94 | |
Chris Metcalf | 3d1e8a8 | 2012-03-27 13:53:30 -0400 | [diff] [blame] | 95 | config NEED_DMA_MAP_STATE |
| 96 | def_bool y |
| 97 | |
Chris Metcalf | 41bb38f | 2012-06-15 15:23:06 -0400 | [diff] [blame] | 98 | config ARCH_HAS_DMA_SET_COHERENT_MASK |
| 99 | bool |
| 100 | |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 101 | config LOCKDEP_SUPPORT |
| 102 | def_bool y |
| 103 | |
| 104 | config STACKTRACE_SUPPORT |
| 105 | def_bool y |
| 106 | select STACKTRACE |
| 107 | |
| 108 | # We use discontigmem for now; at some point we may want to switch |
| 109 | # to sparsemem (Tilera bug 7996). |
| 110 | config ARCH_DISCONTIGMEM_ENABLE |
| 111 | def_bool y |
| 112 | |
| 113 | config ARCH_DISCONTIGMEM_DEFAULT |
| 114 | def_bool y |
| 115 | |
| 116 | config TRACE_IRQFLAGS_SUPPORT |
| 117 | def_bool y |
| 118 | |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 119 | # SMP is required for Tilera Linux. |
| 120 | config SMP |
| 121 | def_bool y |
| 122 | |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 123 | config HVC_TILE |
Joe Millenbach | 4f73bc4 | 2013-01-17 22:44:22 -0800 | [diff] [blame] | 124 | depends on TTY |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 125 | select HVC_DRIVER |
Chris Metcalf | bda0f5b | 2013-08-06 14:11:21 -0400 | [diff] [blame] | 126 | select HVC_IRQ if TILEGX |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 127 | def_bool y |
| 128 | |
Chris Metcalf | 41dd496 | 2015-06-03 10:37:56 -0400 | [diff] [blame] | 129 | # Building with ARCH=tilegx (or ARCH=tile) implies using the |
| 130 | # 64-bit TILE-Gx toolchain, so force CONFIG_TILEGX on. |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 131 | config TILEGX |
Chris Metcalf | 41dd496 | 2015-06-03 10:37:56 -0400 | [diff] [blame] | 132 | def_bool ARCH != "tilepro" |
Thomas Gleixner | b26d851 | 2014-05-07 15:44:16 +0000 | [diff] [blame] | 133 | select SPARSE_IRQ |
| 134 | select GENERIC_IRQ_LEGACY_ALLOC_HWIRQ |
Tony Lu | a61fd5e | 2013-08-09 13:26:09 -0400 | [diff] [blame] | 135 | select HAVE_FUNCTION_TRACER |
Tony Lu | a61fd5e | 2013-08-09 13:26:09 -0400 | [diff] [blame] | 136 | select HAVE_FUNCTION_GRAPH_TRACER |
| 137 | select HAVE_DYNAMIC_FTRACE |
| 138 | select HAVE_FTRACE_MCOUNT_RECORD |
Tony Lu | 3fa17c3 | 2013-08-09 15:08:57 -0400 | [diff] [blame] | 139 | select HAVE_KPROBES |
| 140 | select HAVE_KRETPROBES |
Chris Metcalf | 8157107 | 2013-08-28 19:53:17 -0400 | [diff] [blame] | 141 | select HAVE_ARCH_KGDB |
Chris Metcalf | 3e24765 | 2014-08-01 15:26:46 -0400 | [diff] [blame] | 142 | select ARCH_SUPPORTS_ATOMIC_RMW |
Zhigang Lu | 65a792e | 2015-09-30 10:11:45 +0800 | [diff] [blame] | 143 | select HAVE_ARCH_JUMP_LABEL |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 144 | |
Chris Metcalf | acd1a19 | 2012-04-07 15:58:24 -0400 | [diff] [blame] | 145 | config TILEPRO |
| 146 | def_bool !TILEGX |
| 147 | |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 148 | config 64BIT |
Chris Metcalf | acd1a19 | 2012-04-07 15:58:24 -0400 | [diff] [blame] | 149 | def_bool TILEGX |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 150 | |
| 151 | config ARCH_DEFCONFIG |
| 152 | string |
Chris Metcalf | 3d1e8a8 | 2012-03-27 13:53:30 -0400 | [diff] [blame] | 153 | default "arch/tile/configs/tilepro_defconfig" if !TILEGX |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 154 | default "arch/tile/configs/tilegx_defconfig" if TILEGX |
| 155 | |
Kirill A. Shutemov | 909d45e | 2015-04-14 15:46:08 -0700 | [diff] [blame] | 156 | config PGTABLE_LEVELS |
| 157 | int |
| 158 | default 3 if 64BIT |
| 159 | default 2 |
| 160 | |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 161 | source "init/Kconfig" |
| 162 | |
Chris Metcalf | 99a844b | 2013-01-31 21:21:36 -0500 | [diff] [blame] | 163 | source "kernel/Kconfig.freezer" |
| 164 | |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 165 | menu "Tilera-specific configuration" |
| 166 | |
| 167 | config NR_CPUS |
| 168 | int "Maximum number of tiles (2-255)" |
| 169 | range 2 255 |
| 170 | depends on SMP |
| 171 | default "64" |
| 172 | ---help--- |
| 173 | Building with 64 is the recommended value, but a slightly |
| 174 | smaller kernel memory footprint results from using a smaller |
| 175 | value on chips with fewer tiles. |
| 176 | |
Chris Metcalf | d5d14ed | 2012-03-29 13:58:43 -0400 | [diff] [blame] | 177 | choice |
| 178 | prompt "Kernel page size" |
| 179 | default PAGE_SIZE_64KB |
| 180 | help |
| 181 | This lets you select the page size of the kernel. For best |
| 182 | performance on memory-intensive applications, a page size of 64KB |
| 183 | is recommended. For workloads involving many small files, many |
| 184 | connections, etc., it may be better to select 16KB, which uses |
| 185 | memory more efficiently at some cost in TLB performance. |
| 186 | |
Chris Metcalf | c1b27ab | 2015-12-22 12:28:51 -0500 | [diff] [blame] | 187 | Note that for TILEPro, you must also rebuild the hypervisor |
| 188 | with a matching page size. |
| 189 | |
| 190 | config PAGE_SIZE_4KB |
| 191 | bool "4KB" if TILEPRO |
Chris Metcalf | d5d14ed | 2012-03-29 13:58:43 -0400 | [diff] [blame] | 192 | |
| 193 | config PAGE_SIZE_16KB |
| 194 | bool "16KB" |
| 195 | |
| 196 | config PAGE_SIZE_64KB |
| 197 | bool "64KB" |
| 198 | |
| 199 | endchoice |
| 200 | |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 201 | source "kernel/Kconfig.hz" |
| 202 | |
| 203 | config KEXEC |
| 204 | bool "kexec system call" |
Dave Young | 2965faa | 2015-09-09 15:38:55 -0700 | [diff] [blame] | 205 | select KEXEC_CORE |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 206 | ---help--- |
| 207 | kexec is a system call that implements the ability to shutdown your |
| 208 | current kernel, and to start another kernel. It is like a reboot |
| 209 | but it is independent of the system firmware. It is used |
| 210 | to implement the "mboot" Tilera booter. |
| 211 | |
| 212 | The name comes from the similarity to the exec system call. |
| 213 | |
| 214 | config COMPAT |
| 215 | bool "Support 32-bit TILE-Gx binaries in addition to 64-bit" |
| 216 | depends on TILEGX |
| 217 | select COMPAT_BINFMT_ELF |
| 218 | default y |
| 219 | ---help--- |
| 220 | If enabled, the kernel will support running TILE-Gx binaries |
| 221 | that were built with the -m32 option. |
| 222 | |
Chris Metcalf | a0ddef8 | 2015-07-22 14:30:14 -0400 | [diff] [blame] | 223 | config SECCOMP |
| 224 | bool "Enable seccomp to safely compute untrusted bytecode" |
| 225 | depends on PROC_FS |
| 226 | help |
| 227 | This kernel feature is useful for number crunching applications |
| 228 | that may need to compute untrusted bytecode during their |
| 229 | execution. By using pipes or other transports made available to |
| 230 | the process as file descriptors supporting the read/write |
| 231 | syscalls, it's possible to isolate those applications in |
| 232 | their own address space using seccomp. Once seccomp is |
| 233 | enabled via prctl, it cannot be disabled and the task is only |
| 234 | allowed to execute a few safe syscalls defined by each seccomp |
| 235 | mode. |
| 236 | |
| 237 | If unsure, say N. |
| 238 | |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 239 | config SYSVIPC_COMPAT |
| 240 | def_bool y |
| 241 | depends on COMPAT && SYSVIPC |
| 242 | |
Chris Metcalf | d7c9661 | 2013-08-15 16:23:24 -0400 | [diff] [blame] | 243 | # We do not currently support disabling HIGHMEM on tilepro. |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 244 | config HIGHMEM |
| 245 | bool # "Support for more than 512 MB of RAM" |
| 246 | default !TILEGX |
| 247 | ---help--- |
| 248 | Linux can use the full amount of RAM in the system by |
| 249 | default. However, the address space of TILE processors is |
| 250 | only 4 Gigabytes large. That means that, if you have a large |
| 251 | amount of physical memory, not all of it can be "permanently |
| 252 | mapped" by the kernel. The physical memory that's not |
| 253 | permanently mapped is called "high memory". |
| 254 | |
| 255 | If you are compiling a kernel which will never run on a |
| 256 | machine with more than 512 MB total physical RAM, answer |
| 257 | "false" here. This will result in the kernel mapping all of |
| 258 | physical memory into the top 1 GB of virtual memory space. |
| 259 | |
| 260 | If unsure, say "true". |
| 261 | |
Chris Metcalf | eef015c | 2012-05-09 12:26:30 -0400 | [diff] [blame] | 262 | config ZONE_DMA |
| 263 | def_bool y |
| 264 | |
Chris Metcalf | 41bb38f | 2012-06-15 15:23:06 -0400 | [diff] [blame] | 265 | config IOMMU_HELPER |
| 266 | bool |
| 267 | |
| 268 | config NEED_SG_DMA_LENGTH |
| 269 | bool |
| 270 | |
| 271 | config SWIOTLB |
| 272 | bool |
| 273 | default TILEGX |
| 274 | select IOMMU_HELPER |
| 275 | select NEED_SG_DMA_LENGTH |
| 276 | select ARCH_HAS_DMA_SET_COHERENT_MASK |
| 277 | |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 278 | # We do not currently support disabling NUMA. |
| 279 | config NUMA |
| 280 | bool # "NUMA Memory Allocation and Scheduler Support" |
| 281 | depends on SMP && DISCONTIGMEM |
| 282 | default y |
| 283 | ---help--- |
| 284 | NUMA memory allocation is required for TILE processors |
| 285 | unless booting with memory striping enabled in the |
| 286 | hypervisor, or with only a single memory controller. |
| 287 | It is recommended that this option always be enabled. |
| 288 | |
| 289 | config NODES_SHIFT |
| 290 | int "Log base 2 of the max number of memory controllers" |
| 291 | default 2 |
| 292 | depends on NEED_MULTIPLE_NODES |
| 293 | ---help--- |
| 294 | By default, 2, i.e. 2^2 == 4 DDR2 controllers. |
| 295 | In a system with more controllers, this value should be raised. |
| 296 | |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 297 | choice |
| 298 | depends on !TILEGX |
David Rientjes | 6a108a1 | 2011-01-20 14:44:16 -0800 | [diff] [blame] | 299 | prompt "Memory split" if EXPERT |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 300 | default VMSPLIT_3G |
| 301 | ---help--- |
| 302 | Select the desired split between kernel and user memory. |
| 303 | |
| 304 | If the address range available to the kernel is less than the |
| 305 | physical memory installed, the remaining memory will be available |
| 306 | as "high memory". Accessing high memory is a little more costly |
| 307 | than low memory, as it needs to be mapped into the kernel first. |
| 308 | Note that increasing the kernel address space limits the range |
| 309 | available to user programs, making the address space there |
| 310 | tighter. Selecting anything other than the default 3G/1G split |
| 311 | will also likely make your kernel incompatible with binary-only |
| 312 | kernel modules. |
| 313 | |
| 314 | If you are not absolutely sure what you are doing, leave this |
| 315 | option alone! |
| 316 | |
Chris Metcalf | 5592840 | 2010-09-13 08:50:09 -0400 | [diff] [blame] | 317 | config VMSPLIT_3_75G |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 318 | bool "3.75G/0.25G user/kernel split (no kernel networking)" |
Chris Metcalf | 5592840 | 2010-09-13 08:50:09 -0400 | [diff] [blame] | 319 | config VMSPLIT_3_5G |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 320 | bool "3.5G/0.5G user/kernel split" |
| 321 | config VMSPLIT_3G |
| 322 | bool "3G/1G user/kernel split" |
Chris Metcalf | 09c17ea | 2011-02-28 16:01:09 -0500 | [diff] [blame] | 323 | config VMSPLIT_2_75G |
| 324 | bool "2.75G/1.25G user/kernel split (for full 1G low memory)" |
| 325 | config VMSPLIT_2_5G |
| 326 | bool "2.5G/1.5G user/kernel split" |
| 327 | config VMSPLIT_2_25G |
| 328 | bool "2.25G/1.75G user/kernel split" |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 329 | config VMSPLIT_2G |
| 330 | bool "2G/2G user/kernel split" |
| 331 | config VMSPLIT_1G |
| 332 | bool "1G/3G user/kernel split" |
| 333 | endchoice |
| 334 | |
| 335 | config PAGE_OFFSET |
| 336 | hex |
Chris Metcalf | 884197f | 2012-03-27 13:56:04 -0400 | [diff] [blame] | 337 | depends on !64BIT |
Chris Metcalf | 5592840 | 2010-09-13 08:50:09 -0400 | [diff] [blame] | 338 | default 0xF0000000 if VMSPLIT_3_75G |
| 339 | default 0xE0000000 if VMSPLIT_3_5G |
Chris Metcalf | 09c17ea | 2011-02-28 16:01:09 -0500 | [diff] [blame] | 340 | default 0xB0000000 if VMSPLIT_2_75G |
| 341 | default 0xA0000000 if VMSPLIT_2_5G |
| 342 | default 0x90000000 if VMSPLIT_2_25G |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 343 | default 0x80000000 if VMSPLIT_2G |
| 344 | default 0x40000000 if VMSPLIT_1G |
| 345 | default 0xC0000000 |
| 346 | |
| 347 | source "mm/Kconfig" |
| 348 | |
Chris Metcalf | bc1a298 | 2013-08-07 11:36:54 -0400 | [diff] [blame] | 349 | source "kernel/Kconfig.preempt" |
| 350 | |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 351 | config CMDLINE_BOOL |
| 352 | bool "Built-in kernel command line" |
| 353 | default n |
| 354 | ---help--- |
| 355 | Allow for specifying boot arguments to the kernel at |
| 356 | build time. On some systems (e.g. embedded ones), it is |
| 357 | necessary or convenient to provide some or all of the |
| 358 | kernel boot arguments with the kernel itself (that is, |
| 359 | to not rely on the boot loader to provide them.) |
| 360 | |
| 361 | To compile command line arguments into the kernel, |
| 362 | set this option to 'Y', then fill in the |
| 363 | the boot arguments in CONFIG_CMDLINE. |
| 364 | |
| 365 | Systems with fully functional boot loaders (e.g. mboot, or |
| 366 | if booting over PCI) should leave this option set to 'N'. |
| 367 | |
| 368 | config CMDLINE |
| 369 | string "Built-in kernel command string" |
| 370 | depends on CMDLINE_BOOL |
| 371 | default "" |
| 372 | ---help--- |
| 373 | Enter arguments here that should be compiled into the kernel |
| 374 | image and used at boot time. If the boot loader provides a |
| 375 | command line at boot time, it is appended to this string to |
| 376 | form the full kernel command line, when the system boots. |
| 377 | |
| 378 | However, you can use the CONFIG_CMDLINE_OVERRIDE option to |
| 379 | change this behavior. |
| 380 | |
| 381 | In most cases, the command line (whether built-in or provided |
| 382 | by the boot loader) should specify the device for the root |
| 383 | file system. |
| 384 | |
| 385 | config CMDLINE_OVERRIDE |
| 386 | bool "Built-in command line overrides boot loader arguments" |
| 387 | default n |
| 388 | depends on CMDLINE_BOOL |
| 389 | ---help--- |
| 390 | Set this option to 'Y' to have the kernel ignore the boot loader |
| 391 | command line, and use ONLY the built-in command line. |
| 392 | |
| 393 | This is used to work around broken boot loaders. This should |
| 394 | be set to 'N' under normal conditions. |
| 395 | |
| 396 | config VMALLOC_RESERVE |
| 397 | hex |
Chris Metcalf | ad2a4bb | 2013-09-16 13:02:57 -0400 | [diff] [blame] | 398 | default 0x2000000 |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 399 | |
Chris Metcalf | 9f9c038 | 2010-06-25 17:00:56 -0400 | [diff] [blame] | 400 | config HARDWALL |
| 401 | bool "Hardwall support to allow access to user dynamic network" |
| 402 | default y |
| 403 | |
Chris Metcalf | a78c942 | 2010-10-14 16:23:03 -0400 | [diff] [blame] | 404 | config KERNEL_PL |
| 405 | int "Processor protection level for kernel" |
| 406 | range 1 2 |
Chris Metcalf | c539914 | 2013-05-02 15:29:04 -0400 | [diff] [blame] | 407 | default 2 if TILEGX |
| 408 | default 1 if !TILEGX |
Chris Metcalf | a78c942 | 2010-10-14 16:23:03 -0400 | [diff] [blame] | 409 | ---help--- |
Chris Metcalf | c539914 | 2013-05-02 15:29:04 -0400 | [diff] [blame] | 410 | Since MDE 4.2, the Tilera hypervisor runs the kernel |
| 411 | at PL2 by default. If running under an older hypervisor, |
| 412 | or as a KVM guest, you must run at PL1. (The current |
| 413 | hypervisor may also be recompiled with "make HV_PL=2" to |
| 414 | allow it to run a kernel at PL1, but clients running at PL1 |
| 415 | are not expected to be supported indefinitely.) |
| 416 | |
| 417 | If you're not sure, don't change the default. |
Chris Metcalf | a78c942 | 2010-10-14 16:23:03 -0400 | [diff] [blame] | 418 | |
Chris Metcalf | 37b82b5 | 2012-04-04 16:39:58 -0400 | [diff] [blame] | 419 | source "arch/tile/gxio/Kconfig" |
| 420 | |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 421 | endmenu # Tilera-specific configuration |
| 422 | |
| 423 | menu "Bus options" |
| 424 | |
Chris Metcalf | f02cbbe | 2010-11-02 12:05:10 -0400 | [diff] [blame] | 425 | config PCI |
| 426 | bool "PCI support" |
| 427 | default y |
| 428 | select PCI_DOMAINS |
Michael S. Tsirkin | 8455012 | 2011-11-29 20:42:56 +0200 | [diff] [blame] | 429 | select GENERIC_PCI_IOMAP |
Chris Metcalf | 1296226 | 2012-04-07 17:10:17 -0400 | [diff] [blame] | 430 | select TILE_GXIO_TRIO if TILEGX |
Chris Metcalf | 1296226 | 2012-04-07 17:10:17 -0400 | [diff] [blame] | 431 | select PCI_MSI if TILEGX |
Chris Metcalf | f02cbbe | 2010-11-02 12:05:10 -0400 | [diff] [blame] | 432 | ---help--- |
| 433 | Enable PCI root complex support, so PCIe endpoint devices can |
| 434 | be attached to the Tile chip. Many, but not all, PCI devices |
| 435 | are supported under Tilera's root complex driver. |
| 436 | |
| 437 | config PCI_DOMAINS |
| 438 | bool |
| 439 | |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 440 | config NO_IOMEM |
| 441 | def_bool !PCI |
| 442 | |
Uwe Kleine-König | ce816fa | 2014-04-07 15:39:19 -0700 | [diff] [blame] | 443 | config NO_IOPORT_MAP |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 444 | def_bool !PCI |
| 445 | |
Chris Metcalf | cf89c42 | 2013-08-02 16:45:22 -0400 | [diff] [blame] | 446 | config TILE_PCI_IO |
| 447 | bool "PCI I/O space support" |
| 448 | default n |
| 449 | depends on PCI |
| 450 | depends on TILEGX |
| 451 | ---help--- |
| 452 | Enable PCI I/O space support on TILEGx. Since the PCI I/O space |
| 453 | is used by few modern PCIe endpoint devices, its support is disabled |
| 454 | by default to save the TRIO PIO Region resource for other purposes. |
| 455 | |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 456 | source "drivers/pci/Kconfig" |
| 457 | |
Chris Metcalf | 47fc28b | 2012-05-09 13:58:14 -0400 | [diff] [blame] | 458 | config TILE_USB |
| 459 | tristate "Tilera USB host adapter support" |
| 460 | default y |
| 461 | depends on USB |
| 462 | depends on TILEGX |
| 463 | select TILE_GXIO_USB_HOST |
| 464 | ---help--- |
| 465 | Provides USB host adapter support for the built-in EHCI and OHCI |
| 466 | interfaces on TILE-Gx chips. |
| 467 | |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 468 | endmenu |
| 469 | |
| 470 | menu "Executable file formats" |
| 471 | |
Chris Metcalf | 867e359 | 2010-05-28 23:09:12 -0400 | [diff] [blame] | 472 | source "fs/Kconfig.binfmt" |
| 473 | |
| 474 | endmenu |
| 475 | |
| 476 | source "net/Kconfig" |
| 477 | |
| 478 | source "drivers/Kconfig" |
| 479 | |
| 480 | source "fs/Kconfig" |
| 481 | |
| 482 | source "arch/tile/Kconfig.debug" |
| 483 | |
| 484 | source "security/Kconfig" |
| 485 | |
| 486 | source "crypto/Kconfig" |
| 487 | |
| 488 | source "lib/Kconfig" |
Chris Metcalf | a78c942 | 2010-10-14 16:23:03 -0400 | [diff] [blame] | 489 | |
| 490 | source "arch/tile/kvm/Kconfig" |