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TOMOYO Linux Cross Reference
Linux/arch/parisc/Kconfig

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Diff markup

Differences between /arch/parisc/Kconfig (Version linux-6.12-rc7) and /arch/alpha/Kconfig (Version linux-5.16.20)


  1 # SPDX-License-Identifier: GPL-2.0                  1 # SPDX-License-Identifier: GPL-2.0
  2 config PARISC                                  !!   2 config ALPHA
  3         def_bool y                             !!   3         bool
  4         select ALTERNATE_USER_ADDRESS_SPACE    !!   4         default y
  5         select ARCH_32BIT_OFF_T if !64BIT      !!   5         select ARCH_32BIT_USTAT_F_TINODE
  6         select ARCH_MIGHT_HAVE_PC_PARPORT           6         select ARCH_MIGHT_HAVE_PC_PARPORT
  7         select HAVE_FUNCTION_TRACER            !!   7         select ARCH_MIGHT_HAVE_PC_SERIO
  8         select HAVE_FUNCTION_GRAPH_TRACER      !!   8         select ARCH_NO_PREEMPT
  9         select HAVE_SYSCALL_TRACEPOINTS        << 
 10         select ARCH_WANT_FRAME_POINTERS        << 
 11         select ARCH_HAS_CPU_CACHE_ALIASING     << 
 12         select ARCH_HAS_DMA_ALLOC if PA11      << 
 13         select ARCH_HAS_DMA_OPS                << 
 14         select ARCH_HAS_ELF_RANDOMIZE          << 
 15         select ARCH_HAS_STRICT_KERNEL_RWX      << 
 16         select ARCH_HAS_STRICT_MODULE_RWX      << 
 17         select ARCH_HAS_UBSAN                  << 
 18         select ARCH_HAS_PTE_SPECIAL            << 
 19         select ARCH_NO_SG_CHAIN                     9         select ARCH_NO_SG_CHAIN
 20         select ARCH_SPLIT_ARG64 if !64BIT      !!  10         select ARCH_USE_CMPXCHG_LOCKREF
 21         select ARCH_SUPPORTS_HUGETLBFS if PA20 !!  11         select DMA_OPS if PCI
 22         select ARCH_SUPPORTS_MEMORY_FAILURE    !!  12         select FORCE_PCI if !ALPHA_JENSEN
 23         select ARCH_STACKWALK                  !!  13         select PCI_DOMAINS if PCI
 24         select ARCH_HAS_CACHE_LINE_SIZE        !!  14         select PCI_SYSCALL if PCI
 25         select ARCH_HAS_DEBUG_VM_PGTABLE       !!  15         select HAVE_AOUT
 26         select HAVE_RELIABLE_STACKTRACE        !!  16         select HAVE_ASM_MODVERSIONS
 27         select RTC_CLASS                       !!  17         select HAVE_PCSPKR_PLATFORM
 28         select RTC_DRV_GENERIC                 << 
 29         select INIT_ALL_POSSIBLE               << 
 30         select BUG                             << 
 31         select HAVE_KERNEL_UNCOMPRESSED        << 
 32         select HAVE_PCI                        << 
 33         select HAVE_PERF_EVENTS                    18         select HAVE_PERF_EVENTS
 34         select HAVE_KERNEL_BZIP2               !!  19         select NEED_DMA_MAP_STATE
 35         select HAVE_KERNEL_GZIP                !!  20         select NEED_SG_DMA_LENGTH
 36         select HAVE_KERNEL_LZ4                 !!  21         select VIRT_TO_BUS
 37         select HAVE_KERNEL_LZMA                << 
 38         select HAVE_KERNEL_LZO                 << 
 39         select HAVE_KERNEL_XZ                  << 
 40         select GENERIC_ATOMIC64 if !64BIT      << 
 41         select GENERIC_IRQ_PROBE                   22         select GENERIC_IRQ_PROBE
 42         select GENERIC_PCI_IOMAP                   23         select GENERIC_PCI_IOMAP
 43         select GENERIC_IOREMAP                 !!  24         select AUTO_IRQ_AFFINITY if SMP
                                                   >>  25         select GENERIC_IRQ_SHOW
                                                   >>  26         select ARCH_WANT_IPC_PARSE_VERSION
 44         select ARCH_HAVE_NMI_SAFE_CMPXCHG          27         select ARCH_HAVE_NMI_SAFE_CMPXCHG
                                                   >>  28         select AUDIT_ARCH
                                                   >>  29         select GENERIC_CPU_VULNERABILITIES
 45         select GENERIC_SMP_IDLE_THREAD             30         select GENERIC_SMP_IDLE_THREAD
 46         select GENERIC_ARCH_TOPOLOGY if SMP    !!  31         select HAVE_ARCH_AUDITSYSCALL
 47         select GENERIC_CPU_DEVICES if !SMP     << 
 48         select GENERIC_LIB_DEVMEM_IS_ALLOWED   << 
 49         select SYSCTL_ARCH_UNALIGN_ALLOW       << 
 50         select SYSCTL_ARCH_UNALIGN_NO_WARN     << 
 51         select SYSCTL_EXCEPTION_TRACE          << 
 52         select HAVE_MOD_ARCH_SPECIFIC              32         select HAVE_MOD_ARCH_SPECIFIC
 53         select MODULES_USE_ELF_RELA                33         select MODULES_USE_ELF_RELA
 54         select CLONE_BACKWARDS                 !!  34         select ODD_RT_SIGACTION
 55         select TTY # Needed for pdc_cons.c     !!  35         select OLD_SIGSUSPEND
 56         select HAS_IOPORT if PCI || EISA       !!  36         select CPU_NO_EFFICIENT_FFS if !ALPHA_EV67
 57         select HAVE_DEBUG_STACKOVERFLOW        !!  37         select MMU_GATHER_NO_RANGE
 58         select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_ !!  38         select SET_FS
 59         select HAVE_ARCH_MMAP_RND_COMPAT_BITS  !!  39         select SPARSEMEM_EXTREME if SPARSEMEM
 60         select HAVE_ARCH_MMAP_RND_BITS         !!  40         select ZONE_DMA
 61         select HAVE_ARCH_AUDITSYSCALL          !!  41         help
 62         select HAVE_ARCH_HASH                  !!  42           The Alpha is a 64-bit general-purpose processor designed and
 63         select HAVE_ARCH_JUMP_LABEL            !!  43           marketed by the Digital Equipment Corporation of blessed memory,
 64         select HAVE_ARCH_JUMP_LABEL_RELATIVE   !!  44           now Hewlett-Packard.  The Alpha Linux project has a home page at
 65         select HAVE_ARCH_KFENCE                !!  45           <http://www.alphalinux.org/>.
 66         select HAVE_ARCH_SECCOMP_FILTER        << 
 67         select HAVE_ARCH_TRACEHOOK             << 
 68         select HAVE_EBPF_JIT                   << 
 69         select ARCH_WANT_DEFAULT_BPF_JIT       << 
 70         select HAVE_REGS_AND_STACK_ACCESS_API  << 
 71         select HOTPLUG_CORE_SYNC_DEAD if HOTPL << 
 72         select GENERIC_SCHED_CLOCK             << 
 73         select GENERIC_IRQ_MIGRATION if SMP    << 
 74         select HAVE_UNSTABLE_SCHED_CLOCK if SM << 
 75         select GENERIC_CLOCKEVENTS             << 
 76         select CPU_NO_EFFICIENT_FFS            << 
 77         select THREAD_INFO_IN_TASK             << 
 78         select NEED_DMA_MAP_STATE              << 
 79         select NEED_SG_DMA_LENGTH              << 
 80         select HAVE_ARCH_KGDB                  << 
 81         select HAVE_KPROBES                    << 
 82         select HAVE_KRETPROBES                 << 
 83         select HAVE_DYNAMIC_FTRACE if $(cc-opt << 
 84         select HAVE_FTRACE_MCOUNT_RECORD if HA << 
 85         select FTRACE_MCOUNT_USE_PATCHABLE_FUN << 
 86         select HAVE_KPROBES_ON_FTRACE          << 
 87         select HAVE_DYNAMIC_FTRACE_WITH_REGS   << 
 88         select HAVE_SOFTIRQ_ON_OWN_STACK if IR << 
 89         select TRACE_IRQFLAGS_SUPPORT          << 
 90         select HAVE_FUNCTION_DESCRIPTORS if 64 << 
 91         select PCI_MSI_ARCH_FALLBACKS if PCI_M << 
 92                                                << 
 93         help                                   << 
 94           The PA-RISC microprocessor is design << 
 95           in many of their workstations & serv << 
 96           and later HP3000 series).  The PA-RI << 
 97           at <https://parisc.wiki.kernel.org>. << 
 98                                                    46 
 99 config CPU_BIG_ENDIAN                          !!  47 config 64BIT
100         def_bool y                                 48         def_bool y
101                                                    49 
102 config MMU                                         50 config MMU
103         def_bool y                             << 
104                                                << 
105 config STACK_GROWSUP                           << 
106         def_bool y                             << 
107                                                << 
108 config GENERIC_LOCKBREAK                       << 
109         bool                                       51         bool
110         default y                                  52         default y
111         depends on SMP && PREEMPTION           << 
112                                                    53 
113 config ARCH_HAS_ILOG2_U32                          54 config ARCH_HAS_ILOG2_U32
114         bool                                       55         bool
115         default n                                  56         default n
116                                                    57 
117 config ARCH_HAS_ILOG2_U64                          58 config ARCH_HAS_ILOG2_U64
118         bool                                       59         bool
119         default n                                  60         default n
120                                                    61 
121 config GENERIC_BUG                             !!  62 config GENERIC_CALIBRATE_DELAY
122         def_bool y                             << 
123         depends on BUG                         << 
124         select GENERIC_BUG_RELATIVE_POINTERS i << 
125                                                << 
126 config GENERIC_BUG_RELATIVE_POINTERS           << 
127         bool                                   << 
128                                                << 
129 config GENERIC_HWEIGHT                         << 
130         bool                                       63         bool
131         default y                                  64         default y
132                                                    65 
133 config GENERIC_CALIBRATE_DELAY                 !!  66 config GENERIC_ISA_DMA
134         bool                                       67         bool
135         default y                                  68         default y
136                                                    69 
137 config TIME_LOW_RES                            !!  70 config PGTABLE_LEVELS
                                                   >>  71         int
                                                   >>  72         default 3
                                                   >>  73 
                                                   >>  74 config AUDIT_ARCH
138         bool                                       75         bool
139         depends on SMP                         << 
140         default y                              << 
141                                                    76 
142 config ARCH_MMAP_RND_BITS_MIN                  !!  77 menu "System setup"
143         default 18 if 64BIT                    << 
144         default 8                              << 
145                                                    78 
146 config ARCH_MMAP_RND_COMPAT_BITS_MIN           !!  79 choice
147         default 8                              !!  80         prompt "Alpha system type"
                                                   >>  81         default ALPHA_GENERIC
                                                   >>  82         help
                                                   >>  83           This is the system type of your hardware.  A "generic" kernel will
                                                   >>  84           run on any supported Alpha system. However, if you configure a
                                                   >>  85           kernel for your specific system, it will be faster and smaller.
148                                                    86 
149 config ARCH_MMAP_RND_BITS_MAX                  !!  87           To find out what type of Alpha system you have, you may want to
150         default 18 if 64BIT                    !!  88           check out the Linux/Alpha FAQ, accessible on the WWW from
151         default 13                             !!  89           <http://www.alphalinux.org/>. In summary:
152                                                    90 
153 config ARCH_MMAP_RND_COMPAT_BITS_MAX           !!  91           Alcor/Alpha-XLT     AS 600, AS 500, XL-300, XL-366
154         default 13                             !!  92           Alpha-XL            XL-233, XL-266
                                                   >>  93           AlphaBook1          Alpha laptop
                                                   >>  94           Avanti              AS 200, AS 205, AS 250, AS 255, AS 300, AS 400
                                                   >>  95           Cabriolet           AlphaPC64, AlphaPCI64
                                                   >>  96           DP264               DP264 / DS20 / ES40 / DS10 / DS10L
                                                   >>  97           EB164               EB164 21164 evaluation board
                                                   >>  98           EB64+               EB64+ 21064 evaluation board
                                                   >>  99           EB66                EB66 21066 evaluation board
                                                   >> 100           EB66+               EB66+ 21066 evaluation board
                                                   >> 101           Jensen              DECpc 150, DEC 2000 models 300, 500
                                                   >> 102           LX164               AlphaPC164-LX
                                                   >> 103           Lynx                AS 2100A
                                                   >> 104           Miata               Personal Workstation 433/500/600 a/au
                                                   >> 105           Marvel              AlphaServer ES47 / ES80 / GS1280
                                                   >> 106           Mikasa              AS 1000
                                                   >> 107           Noname              AXPpci33, UDB (Multia)
                                                   >> 108           Noritake            AS 1000A, AS 600A, AS 800
                                                   >> 109           PC164               AlphaPC164
                                                   >> 110           Rawhide             AS 1200, AS 4000, AS 4100
                                                   >> 111           Ruffian             RPX164-2, AlphaPC164-UX, AlphaPC164-BX
                                                   >> 112           SX164               AlphaPC164-SX
                                                   >> 113           Sable               AS 2000, AS 2100
                                                   >> 114           Shark               DS 20L
                                                   >> 115           Takara              Takara (OEM)
                                                   >> 116           Titan               AlphaServer ES45 / DS25 / DS15
                                                   >> 117           Wildfire            AlphaServer GS 40/80/160/320
155                                                   118 
156 # unless you want to implement ACPI on PA-RISC !! 119           If you don't know what to do, choose "generic".
157 config PM                                      << 
158         bool                                   << 
159                                                   120 
160 config STACKTRACE_SUPPORT                      !! 121 config ALPHA_GENERIC
161         def_bool y                             !! 122         bool "Generic"
                                                   >> 123         depends on TTY
                                                   >> 124         select HAVE_EISA
                                                   >> 125         help
                                                   >> 126           A generic kernel will run on all supported Alpha hardware.
                                                   >> 127 
                                                   >> 128 config ALPHA_ALCOR
                                                   >> 129         bool "Alcor/Alpha-XLT"
                                                   >> 130         select HAVE_EISA
                                                   >> 131         help
                                                   >> 132           For systems using the Digital ALCOR chipset: 5 chips (4, 64-bit data
                                                   >> 133           slices (Data Switch, DSW) - 208-pin PQFP and 1 control (Control, I/O
                                                   >> 134           Address, CIA) - a 383 pin plastic PGA).  It provides a DRAM
                                                   >> 135           controller (256-bit memory bus) and a PCI interface.  It also does
                                                   >> 136           all the work required to support an external Bcache and to maintain
                                                   >> 137           memory coherence when a PCI device DMAs into (or out of) memory.
                                                   >> 138 
                                                   >> 139 config ALPHA_XL
                                                   >> 140         bool "Alpha-XL"
                                                   >> 141         help
                                                   >> 142           XL-233 and XL-266-based Alpha systems.
                                                   >> 143 
                                                   >> 144 config ALPHA_BOOK1
                                                   >> 145         bool "AlphaBook1"
                                                   >> 146         help
                                                   >> 147           Dec AlphaBook1/Burns Alpha-based laptops.
                                                   >> 148 
                                                   >> 149 config ALPHA_AVANTI_CH
                                                   >> 150         bool "Avanti"
                                                   >> 151 
                                                   >> 152 config ALPHA_CABRIOLET
                                                   >> 153         bool "Cabriolet"
                                                   >> 154         help
                                                   >> 155           Cabriolet AlphaPC64, AlphaPCI64 systems.  Derived from EB64+ but now
                                                   >> 156           baby-AT with Flash boot ROM, no on-board SCSI or Ethernet. 3 ISA
                                                   >> 157           slots, 4 PCI slots (one pair are on a shared slot), uses plug-in
                                                   >> 158           Bcache SIMMs.  Requires power supply with 3.3V output.
                                                   >> 159 
                                                   >> 160 config ALPHA_DP264
                                                   >> 161         bool "DP264"
                                                   >> 162         help
                                                   >> 163           Various 21264 systems with the tsunami core logic chipset.
                                                   >> 164           API Networks: 264DP, UP2000(+), CS20;
                                                   >> 165           Compaq: DS10(E,L), XP900, XP1000, DS20(E), ES40.
                                                   >> 166 
                                                   >> 167 config ALPHA_EB164
                                                   >> 168         bool "EB164"
                                                   >> 169         help
                                                   >> 170           EB164 21164 evaluation board from DEC.  Uses 21164 and ALCOR.  Has
                                                   >> 171           ISA and PCI expansion (3 ISA slots, 2 64-bit PCI slots (one is
                                                   >> 172           shared with an ISA slot) and 2 32-bit PCI slots.  Uses plus-in
                                                   >> 173           Bcache SIMMs. I/O sub-system provides SuperI/O (2S, 1P, FD), KBD,
                                                   >> 174           MOUSE (PS2 style), RTC/NVRAM.  Boot ROM is Flash.  PC-AT-sized
                                                   >> 175           motherboard.  Requires power supply with 3.3V output.
                                                   >> 176 
                                                   >> 177 config ALPHA_EB64P_CH
                                                   >> 178         bool "EB64+"
                                                   >> 179 
                                                   >> 180 config ALPHA_EB66
                                                   >> 181         bool "EB66"
                                                   >> 182         help
                                                   >> 183           A Digital DS group board.  Uses 21066 or 21066A.  I/O sub-system is
                                                   >> 184           identical to EB64+.  Baby PC-AT size.  Runs from standard PC power
                                                   >> 185           supply.  The EB66 schematic was published as a marketing poster
                                                   >> 186           advertising the 21066 as "the first microprocessor in the world with
                                                   >> 187           embedded PCI".
                                                   >> 188 
                                                   >> 189 config ALPHA_EB66P
                                                   >> 190         bool "EB66+"
                                                   >> 191         help
                                                   >> 192           Later variant of the EB66 board.
                                                   >> 193 
                                                   >> 194 config ALPHA_EIGER
                                                   >> 195         bool "Eiger"
                                                   >> 196         help
                                                   >> 197           Apparently an obscure OEM single-board computer based on the
                                                   >> 198           Typhoon/Tsunami chipset family. Information on it is scanty.
                                                   >> 199 
                                                   >> 200 config ALPHA_JENSEN
                                                   >> 201         bool "Jensen"
                                                   >> 202         select HAVE_EISA
                                                   >> 203         help
                                                   >> 204           DEC PC 150 AXP (aka Jensen): This is a very old Digital system - one
                                                   >> 205           of the first-generation Alpha systems. A number of these systems
                                                   >> 206           seem to be available on the second- hand market. The Jensen is a
                                                   >> 207           floor-standing tower system which originally used a 150MHz 21064 It
                                                   >> 208           used programmable logic to interface a 486 EISA I/O bridge to the
                                                   >> 209           CPU.
                                                   >> 210 
                                                   >> 211 config ALPHA_LX164
                                                   >> 212         bool "LX164"
                                                   >> 213         help
                                                   >> 214           A technical overview of this board is available at
                                                   >> 215           <http://www.unix-ag.org/Linux-Alpha/Architectures/LX164.html>.
                                                   >> 216 
                                                   >> 217 config ALPHA_LYNX
                                                   >> 218         bool "Lynx"
                                                   >> 219         select HAVE_EISA
                                                   >> 220         help
                                                   >> 221           AlphaServer 2100A-based systems.
                                                   >> 222 
                                                   >> 223 config ALPHA_MARVEL
                                                   >> 224         bool "Marvel"
                                                   >> 225         help
                                                   >> 226           AlphaServer ES47 / ES80 / GS1280 based on EV7.
                                                   >> 227 
                                                   >> 228 config ALPHA_MIATA
                                                   >> 229         bool "Miata"
                                                   >> 230         select HAVE_EISA
                                                   >> 231         help
                                                   >> 232           The Digital PersonalWorkStation (PWS 433a, 433au, 500a, 500au, 600a,
                                                   >> 233           or 600au).
                                                   >> 234 
                                                   >> 235 config ALPHA_MIKASA
                                                   >> 236         bool "Mikasa"
                                                   >> 237         help
                                                   >> 238           AlphaServer 1000-based Alpha systems.
                                                   >> 239 
                                                   >> 240 config ALPHA_NAUTILUS
                                                   >> 241         bool "Nautilus"
                                                   >> 242         help
                                                   >> 243           Alpha systems based on the AMD 751 & ALI 1543C chipsets.
                                                   >> 244 
                                                   >> 245 config ALPHA_NONAME_CH
                                                   >> 246         bool "Noname"
                                                   >> 247 
                                                   >> 248 config ALPHA_NORITAKE
                                                   >> 249         bool "Noritake"
                                                   >> 250         select HAVE_EISA
                                                   >> 251         help
                                                   >> 252           AlphaServer 1000A, AlphaServer 600A, and AlphaServer 800-based
                                                   >> 253           systems.
                                                   >> 254 
                                                   >> 255 config ALPHA_PC164
                                                   >> 256         bool "PC164"
                                                   >> 257 
                                                   >> 258 config ALPHA_P2K
                                                   >> 259         bool "Platform2000"
162                                                   260 
163 config LOCKDEP_SUPPORT                         !! 261 config ALPHA_RAWHIDE
                                                   >> 262         bool "Rawhide"
                                                   >> 263         select HAVE_EISA
                                                   >> 264         help
                                                   >> 265           AlphaServer 1200, AlphaServer 4000 and AlphaServer 4100 machines.
                                                   >> 266           See HOWTO at
                                                   >> 267           <http://www.alphalinux.org/docs/rawhide/4100_install.shtml>.
                                                   >> 268 
                                                   >> 269 config ALPHA_RUFFIAN
                                                   >> 270         bool "Ruffian"
                                                   >> 271         help
                                                   >> 272           Samsung APC164UX.  There is a page on known problems and workarounds
                                                   >> 273           at <http://www.alphalinux.org/faq/FAQ-11.html>.
                                                   >> 274 
                                                   >> 275 config ALPHA_RX164
                                                   >> 276         bool "RX164"
                                                   >> 277 
                                                   >> 278 config ALPHA_SX164
                                                   >> 279         bool "SX164"
                                                   >> 280 
                                                   >> 281 config ALPHA_SABLE
                                                   >> 282         bool "Sable"
                                                   >> 283         select HAVE_EISA
                                                   >> 284         help
                                                   >> 285           Digital AlphaServer 2000 and 2100-based systems.
                                                   >> 286 
                                                   >> 287 config ALPHA_SHARK
                                                   >> 288         bool "Shark"
                                                   >> 289 
                                                   >> 290 config ALPHA_TAKARA
                                                   >> 291         bool "Takara"
                                                   >> 292         help
                                                   >> 293           Alpha 11164-based OEM single-board computer.
                                                   >> 294 
                                                   >> 295 config ALPHA_TITAN
                                                   >> 296         bool "Titan"
                                                   >> 297         help
                                                   >> 298           AlphaServer ES45/DS25 SMP based on EV68 and Titan chipset.
                                                   >> 299 
                                                   >> 300 config ALPHA_WILDFIRE
                                                   >> 301         bool "Wildfire"
                                                   >> 302         help
                                                   >> 303           AlphaServer GS 40/80/160/320 SMP based on the EV67 core.
                                                   >> 304 
                                                   >> 305 endchoice
                                                   >> 306 
                                                   >> 307 # clear all implied options (don't want default values for those):
                                                   >> 308 # Most of these machines have ISA slots; not exactly sure which don't,
                                                   >> 309 # and this doesn't activate hordes of code, so do it always.
                                                   >> 310 config ISA
164         bool                                      311         bool
165         default y                                 312         default y
                                                   >> 313         help
                                                   >> 314           Find out whether you have ISA slots on your motherboard.  ISA is the
                                                   >> 315           name of a bus system, i.e. the way the CPU talks to the other stuff
                                                   >> 316           inside your box.  Other bus systems are PCI, EISA, MicroChannel
                                                   >> 317           (MCA) or VESA.  ISA is an older system, now being displaced by PCI;
                                                   >> 318           newer boards don't support it.  If you have ISA, say Y, otherwise N.
166                                                   319 
167 config ISA_DMA_API                                320 config ISA_DMA_API
168         bool                                      321         bool
                                                   >> 322         default y
169                                                   323 
170 config ARCH_MAY_HAVE_PC_FDC                    !! 324 config ALPHA_NONAME
171         bool                                      325         bool
172         depends on BROKEN                      !! 326         depends on ALPHA_BOOK1 || ALPHA_NONAME_CH
173         default y                                 327         default y
                                                   >> 328         help
                                                   >> 329           The AXPpci33 (aka NoName), is based on the EB66 (includes the Multia
                                                   >> 330           UDB).  This design was produced by Digital's Technical OEM (TOEM)
                                                   >> 331           group. It uses the 21066 processor running at 166MHz or 233MHz. It
                                                   >> 332           is a baby-AT size, and runs from a standard PC power supply. It has
                                                   >> 333           5 ISA slots and 3 PCI slots (one pair are a shared slot). There are
                                                   >> 334           2 versions, with either PS/2 or large DIN connectors for the
                                                   >> 335           keyboard.
174                                                   336 
175 config PGTABLE_LEVELS                          !! 337 config ALPHA_EV4
176         int                                    !! 338         bool
177         default 3 if 64BIT && PARISC_PAGE_SIZE !! 339         depends on ALPHA_JENSEN || (ALPHA_SABLE && !ALPHA_GAMMA) || ALPHA_LYNX || ALPHA_NORITAKE && !ALPHA_PRIMO || ALPHA_MIKASA && !ALPHA_PRIMO || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL || ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
178         default 2                              !! 340         default y if !ALPHA_LYNX
179                                                   341 
180 menu "Processor type and features"             !! 342 config ALPHA_LCA
                                                   >> 343         bool
                                                   >> 344         depends on ALPHA_NONAME || ALPHA_EB66 || ALPHA_EB66P || ALPHA_P2K
                                                   >> 345         default y
181                                                   346 
182 choice                                         !! 347 config ALPHA_APECS
183         prompt "Processor type"                !! 348         bool
184         default PA7000 if "$(ARCH)" = "parisc" !! 349         depends on !ALPHA_PRIMO && (ALPHA_NORITAKE || ALPHA_MIKASA) || ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P_CH || ALPHA_XL
                                                   >> 350         default y
185                                                   351 
186 config PA7000                                  !! 352 config ALPHA_EB64P
187         bool "PA7000/PA7100" if "$(ARCH)" = "p !! 353         bool
                                                   >> 354         depends on ALPHA_CABRIOLET || ALPHA_EB64P_CH
                                                   >> 355         default y
188         help                                      356         help
189           This is the processor type of your C !! 357           Uses 21064 or 21064A and APECs.  Has ISA and PCI expansion (3 ISA,
190           used for optimizing purposes.  In or !! 358           2 PCI, one pair are on a shared slot). Supports 36-bit DRAM SIMs.
191           that can run on all 32-bit PA CPUs ( !! 359           ISA bus generated by Intel SaturnI/O PCI-ISA bridge. On-board SCSI
192           you can specify "PA7000" here.       !! 360           (NCR 810 on PCI) Ethernet (Digital 21040), KBD, MOUSE (PS2 style),
                                                   >> 361           SuperI/O (2S, 1P, FD), RTC/NVRAM. Boot ROM is EPROM.  PC-AT size.
                                                   >> 362           Runs from standard PC power supply.
193                                                   363 
194           Specifying "PA8000" here will allow  !! 364 config ALPHA_EV5
195           which is required on some machines.  !! 365         bool "EV5 CPU(s) (model 5/xxx)?" if ALPHA_LYNX
                                                   >> 366         default y if ALPHA_RX164 || ALPHA_RAWHIDE || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_SABLE && ALPHA_GAMMA || ALPHA_NORITAKE && ALPHA_PRIMO || ALPHA_MIKASA && ALPHA_PRIMO || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR
196                                                   367 
197 config PA7100LC                                !! 368 config ALPHA_EV4
198         bool "PA7100LC" if "$(ARCH)" = "parisc !! 369         bool
199         help                                   !! 370         default y if ALPHA_LYNX && !ALPHA_EV5
200           Select this option for the PCX-L pro << 
201           712, 715/64, 715/80, 715/100, 715/10 << 
202           D200, D210, D300, D310 and E-class   << 
203                                                   371 
204 config PA7200                                  !! 372 config ALPHA_CIA
205         bool "PA7200" if "$(ARCH)" = "parisc"  !! 373         bool
206         help                                   !! 374         depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_NORITAKE && ALPHA_PRIMO || ALPHA_MIKASA && ALPHA_PRIMO || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR
207           Select this option for the PCX-T' pr !! 375         default y
208           C100, C110, J100, J110, J210XC, D250 !! 376 
209           K100, K200, K210, K220, K400, K410 a !! 377 config ALPHA_EV56
                                                   >> 378         bool "EV56 CPU (speed >= 366MHz)?" if ALPHA_ALCOR
                                                   >> 379         default y if ALPHA_RX164 || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN || ALPHA_PC164 || ALPHA_TAKARA
                                                   >> 380 
                                                   >> 381 config ALPHA_EV56
                                                   >> 382         prompt "EV56 CPU (speed >= 333MHz)?"
                                                   >> 383         depends on ALPHA_NORITAKE || ALPHA_PRIMO
210                                                   384 
211 config PA7300LC                                !! 385 config ALPHA_EV56
212         bool "PA7300LC" if "$(ARCH)" = "parisc !! 386         prompt "EV56 CPU (speed >= 400MHz)?"
                                                   >> 387         depends on ALPHA_RAWHIDE
                                                   >> 388 
                                                   >> 389 config ALPHA_PRIMO
                                                   >> 390         bool "EV5 CPU daughtercard (model 5/xxx)?"
                                                   >> 391         depends on ALPHA_NORITAKE || ALPHA_MIKASA
213         help                                      392         help
214           Select this option for the PCX-L2 pr !! 393           Say Y if you have an AS 1000 5/xxx or an AS 1000A 5/xxx.
215           744, A180, B132L, B160L, B180L, C132 << 
216           D220, D230, D320 and D330.           << 
217                                                   394 
218 config PA8X00                                  !! 395 config ALPHA_GAMMA
219         bool "PA8000 and up"                   !! 396         bool "EV5 CPU(s) (model 5/xxx)?"
                                                   >> 397         depends on ALPHA_SABLE
220         help                                      398         help
221           Select this option for PCX-U to PCX- !! 399           Say Y if you have an AS 2000 5/xxx or an AS 2100 5/xxx.
222                                                   400 
223 endchoice                                      !! 401 config ALPHA_GAMMA
                                                   >> 402         bool
                                                   >> 403         depends on ALPHA_LYNX
                                                   >> 404         default y
224                                                   405 
225 # Define implied options from the CPU selectio !! 406 config ALPHA_T2
                                                   >> 407         bool
                                                   >> 408         depends on ALPHA_SABLE || ALPHA_LYNX
                                                   >> 409         default y
226                                                   410 
227 config PA20                                    !! 411 config ALPHA_PYXIS
228         def_bool y                             !! 412         bool
229         depends on PA8X00                      !! 413         depends on ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_RUFFIAN
                                                   >> 414         default y
230                                                   415 
231 config PA11                                    !! 416 config ALPHA_EV6
232         def_bool y                             !! 417         bool
233         depends on PA7000 || PA7100LC || PA720 !! 418         depends on ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER || ALPHA_MARVEL
234         select ARCH_HAS_SYNC_DMA_FOR_CPU       !! 419         default y
235         select ARCH_HAS_SYNC_DMA_FOR_DEVICE    << 
236                                                   420 
237 config PREFETCH                                !! 421 config ALPHA_TSUNAMI
238         def_bool y                             !! 422         bool
239         depends on PA8X00 || PA7200            !! 423         depends on ALPHA_SHARK || ALPHA_DP264 || ALPHA_EIGER
                                                   >> 424         default y
240                                                   425 
241 config PARISC_HUGE_KERNEL                      !! 426 config ALPHA_EV67
242         def_bool y if !MODULES || UBSAN || FTR !! 427         bool "EV67 (or later) CPU (speed > 600MHz)?" if ALPHA_DP264 || ALPHA_EIGER
                                                   >> 428         default y if ALPHA_NAUTILUS || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
                                                   >> 429         help
                                                   >> 430           Is this a machine based on the EV67 core?  If in doubt, select N here
                                                   >> 431           and the machine will be treated as an EV6.
243                                                   432 
244 config MLONGCALLS                              !! 433 config ALPHA_MCPCIA
245         bool "Enable the -mlong-calls compiler !! 434         bool
246         depends on PA8X00                      !! 435         depends on ALPHA_RAWHIDE
247         default PARISC_HUGE_KERNEL             !! 436         default y
248         help                                   << 
249           If you configure the kernel to inclu << 
250           as modules, the kernel executable ma << 
251           linker will not be able to resolve s << 
252           your vmlinux kernel. In that case en << 
253           to overcome this limit by using the  << 
254                                                << 
255           Usually you want to say N here, unle << 
256           a kernel which includes all necessar << 
257           be used for TFTP booting without the << 
258                                                   437 
259           Enabling this option will probably s !! 438 config ALPHA_POLARIS
                                                   >> 439         bool
                                                   >> 440         depends on ALPHA_RX164
                                                   >> 441         default y
260                                                   442 
261 config 64BIT                                   !! 443 config ALPHA_IRONGATE
262         bool "64-bit kernel" if "$(ARCH)" = "p !! 444         bool
263         depends on PA8X00                      !! 445         depends on ALPHA_NAUTILUS
264         default "$(ARCH)" = "parisc64"         !! 446         default y
265         help                                   << 
266           Enable this if you want to support 6 << 
267                                                << 
268           At the moment, only people willing t << 
269           or having a 64bit-only capable PA-RI << 
270                                                << 
271           Since there is no 64bit userland on  << 
272           enable this option otherwise. The 64 << 
273           and slower than the 32bit one.       << 
274                                                   447 
275 choice                                         !! 448 config GENERIC_HWEIGHT
276         prompt "Kernel page size"              !! 449         bool
277         default PARISC_PAGE_SIZE_4KB           !! 450         default y if !ALPHA_EV67
278                                                   451 
279 config PARISC_PAGE_SIZE_4KB                    !! 452 config ALPHA_AVANTI
280         bool "4KB"                             !! 453         bool
281         select HAVE_PAGE_SIZE_4KB              !! 454         depends on ALPHA_XL || ALPHA_AVANTI_CH
282         help                                   !! 455         default y
283           This lets you select the page size o !! 456         help
284           performance, a page size of 16KB is  !! 457           Avanti AS 200, AS 205, AS 250, AS 255, AS 300, and AS 400-based
285           compatibility with 32bit application !! 458           Alphas. Info at
286           selected (the vast majority of 32bit !! 459           <http://www.unix-ag.org/Linux-Alpha/Architectures/Avanti.html>.
287           with a larger page size).            << 
288                                                << 
289           4KB                For best 32bit co << 
290           16KB               For best performa << 
291           64KB               For best performa << 
292                                                << 
293           If you don't know what to do, choose << 
294                                                << 
295 config PARISC_PAGE_SIZE_16KB                   << 
296         bool "16KB"                            << 
297         select HAVE_PAGE_SIZE_16KB             << 
298         depends on PA8X00 && BROKEN && !KFENCE << 
299                                                << 
300 config PARISC_PAGE_SIZE_64KB                   << 
301         bool "64KB"                            << 
302         select HAVE_PAGE_SIZE_64KB             << 
303         depends on PA8X00 && BROKEN && !KFENCE << 
304                                                   460 
305 endchoice                                      !! 461 config ALPHA_BROKEN_IRQ_MASK
                                                   >> 462         bool
                                                   >> 463         depends on ALPHA_GENERIC || ALPHA_PC164
                                                   >> 464         default y
                                                   >> 465 
                                                   >> 466 config VGA_HOSE
                                                   >> 467         bool
                                                   >> 468         depends on VGA_CONSOLE && (ALPHA_GENERIC || ALPHA_TITAN || ALPHA_MARVEL || ALPHA_TSUNAMI)
                                                   >> 469         default y
                                                   >> 470         help
                                                   >> 471           Support VGA on an arbitrary hose; needed for several platforms
                                                   >> 472           which always have multiple hoses, and whose consoles support it.
                                                   >> 473 
                                                   >> 474 
                                                   >> 475 config ALPHA_QEMU
                                                   >> 476         bool "Run under QEMU emulation"
                                                   >> 477         depends on !ALPHA_GENERIC
                                                   >> 478         help
                                                   >> 479           Assume the presence of special features supported by QEMU PALcode
                                                   >> 480           that reduce the overhead of system emulation.
                                                   >> 481 
                                                   >> 482           Generic kernels will auto-detect QEMU.  But when building a
                                                   >> 483           system-specific kernel, the assumption is that we want to
                                                   >> 484           eliminate as many runtime tests as possible.
                                                   >> 485 
                                                   >> 486           If unsure, say N.
                                                   >> 487 
                                                   >> 488 
                                                   >> 489 config ALPHA_SRM
                                                   >> 490         bool "Use SRM as bootloader" if ALPHA_CABRIOLET || ALPHA_AVANTI_CH || ALPHA_EB64P || ALPHA_PC164 || ALPHA_TAKARA || ALPHA_EB164 || ALPHA_ALCOR || ALPHA_MIATA || ALPHA_LX164 || ALPHA_SX164 || ALPHA_NAUTILUS || ALPHA_NONAME
                                                   >> 491         depends on TTY
                                                   >> 492         default y if ALPHA_JENSEN || ALPHA_MIKASA || ALPHA_SABLE || ALPHA_LYNX || ALPHA_NORITAKE || ALPHA_DP264 || ALPHA_RAWHIDE || ALPHA_EIGER || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_SHARK || ALPHA_MARVEL
                                                   >> 493         help
                                                   >> 494           There are two different types of booting firmware on Alphas: SRM,
                                                   >> 495           which is command line driven, and ARC, which uses menus and arrow
                                                   >> 496           keys. Details about the Linux/Alpha booting process are contained in
                                                   >> 497           the Linux/Alpha FAQ, accessible on the WWW from
                                                   >> 498           <http://www.alphalinux.org/>.
                                                   >> 499 
                                                   >> 500           The usual way to load Linux on an Alpha machine is to use MILO
                                                   >> 501           (a bootloader that lets you pass command line parameters to the
                                                   >> 502           kernel just like lilo does for the x86 architecture) which can be
                                                   >> 503           loaded either from ARC or can be installed directly as a permanent
                                                   >> 504           firmware replacement from floppy (which requires changing a certain
                                                   >> 505           jumper on the motherboard). If you want to do either of these, say N
                                                   >> 506           here. If MILO doesn't work on your system (true for Jensen
                                                   >> 507           motherboards), you can bypass it altogether and boot Linux directly
                                                   >> 508           from an SRM console; say Y here in order to do that. Note that you
                                                   >> 509           won't be able to boot from an IDE disk using SRM.
                                                   >> 510 
                                                   >> 511           If unsure, say N.
                                                   >> 512 
                                                   >> 513 config ARCH_MAY_HAVE_PC_FDC
                                                   >> 514         def_bool y
306                                                   515 
307 config SMP                                        516 config SMP
308         bool "Symmetric multi-processing suppo    517         bool "Symmetric multi-processing support"
                                                   >> 518         depends on ALPHA_SABLE || ALPHA_LYNX || ALPHA_RAWHIDE || ALPHA_DP264 || ALPHA_WILDFIRE || ALPHA_TITAN || ALPHA_GENERIC || ALPHA_SHARK || ALPHA_MARVEL
309         help                                      519         help
310           This enables support for systems wit    520           This enables support for systems with more than one CPU. If you have
311           a system with only one CPU, say N. I    521           a system with only one CPU, say N. If you have a system with more
312           than one CPU, say Y.                    522           than one CPU, say Y.
313                                                   523 
314           If you say N here, the kernel will r    524           If you say N here, the kernel will run on uni- and multiprocessor
315           machines, but will use only one CPU  !! 525           machines, but will use only one CPU of a multiprocessor machine. If
316           On a uniprocessor machine, the kerne !! 526           you say Y here, the kernel will run on many, but not all,
                                                   >> 527           uniprocessor machines. On a uniprocessor machine, the kernel
                                                   >> 528           will run faster if you say N here.
317                                                   529 
318           See also <file:Documentation/admin-g !! 530           See also the SMP-HOWTO available at
319           available at <https://www.tldp.org/d !! 531           <https://www.tldp.org/docs.html#howto>.
320                                                   532 
321           If you don't know what to do here, s    533           If you don't know what to do here, say N.
322                                                   534 
323 config SCHED_MC                                !! 535 config NR_CPUS
324         bool "Multi-core scheduler support"    !! 536         int "Maximum number of CPUs (2-32)"
325         depends on GENERIC_ARCH_TOPOLOGY && PA !! 537         range 2 32
                                                   >> 538         depends on SMP
                                                   >> 539         default "32" if ALPHA_GENERIC || ALPHA_MARVEL
                                                   >> 540         default "4" if !ALPHA_GENERIC && !ALPHA_MARVEL
326         help                                      541         help
327           Multi-core scheduler support improve !! 542           MARVEL support can handle a maximum of 32 CPUs, all the others
328           making when dealing with multi-core  !! 543           with working support have a maximum of 4 CPUs.
329           increased overhead in some places. I << 
330                                                   544 
331 config IRQSTACKS                               !! 545 config ARCH_SPARSEMEM_ENABLE
332         bool "Use separate kernel stacks when  !! 546         bool "Sparse Memory Support"
333         default y                              << 
334         help                                      547         help
335           If you say Y here the kernel will us !! 548           Say Y to support efficient handling of discontiguous physical memory,
336           for handling hard and soft interrupt !! 549           for systems that have huge holes in the physical address space.
337           overflowing the process kernel stack << 
338                                                   550 
339 config HOTPLUG_CPU                             !! 551 config ALPHA_WTINT
340         bool                                   !! 552         bool "Use WTINT" if ALPHA_SRM || ALPHA_GENERIC
                                                   >> 553         default y if ALPHA_QEMU
                                                   >> 554         default n if ALPHA_EV5 || ALPHA_EV56 || (ALPHA_EV4 && !ALPHA_LCA)
                                                   >> 555         default n if !ALPHA_SRM && !ALPHA_GENERIC
341         default y if SMP                          556         default y if SMP
                                                   >> 557         help
                                                   >> 558           The Wait for Interrupt (WTINT) PALcall attempts to place the CPU
                                                   >> 559           to sleep until the next interrupt.  This may reduce the power
                                                   >> 560           consumed, and the heat produced by the computer.  However, it has
                                                   >> 561           the side effect of making the cycle counter unreliable as a timing
                                                   >> 562           device across the sleep.
342                                                   563 
343 config ARCH_SELECT_MEMORY_MODEL                !! 564           For emulation under QEMU, definitely say Y here, as we have other
344         def_bool y                             !! 565           mechanisms for measuring time than the cycle counter.
345         depends on 64BIT                       << 
346                                                   566 
347 config ARCH_SPARSEMEM_ENABLE                   !! 567           For EV4 (but not LCA), EV5 and EV56 systems, or for systems running
348         def_bool y                             !! 568           MILO, sleep mode is not supported so you might as well say N here.
349         depends on 64BIT                       << 
350                                                   569 
351 config ARCH_FLATMEM_ENABLE                     !! 570           For SMP systems we cannot use the cycle counter for timing anyway,
352         def_bool y                             !! 571           so you might as well say Y here.
353                                                   572 
354 config ARCH_SPARSEMEM_DEFAULT                  !! 573           If unsure, say N.
355         def_bool y                             << 
356         depends on ARCH_SPARSEMEM_ENABLE       << 
357                                                   574 
358 source "kernel/Kconfig.hz"                     !! 575 # LARGE_VMALLOC is racy, if you *really* need it then fix it first
                                                   >> 576 config ALPHA_LARGE_VMALLOC
                                                   >> 577         bool
                                                   >> 578         help
                                                   >> 579           Process creation and other aspects of virtual memory management can
                                                   >> 580           be streamlined if we restrict the kernel to one PGD for all vmalloc
                                                   >> 581           allocations.  This equates to about 8GB.
359                                                   582 
360 config COMPAT                                  !! 583           Under normal circumstances, this is so far and above what is needed
361         def_bool y                             !! 584           as to be laughable.  However, there are certain applications (such
362         depends on 64BIT                       !! 585           as benchmark-grade in-kernel web serving) that can make use of as
                                                   >> 586           much vmalloc space as is available.
363                                                   587 
364 config AUDIT_ARCH                              !! 588           Say N unless you know you need gobs and gobs of vmalloc space.
365         def_bool y                             << 
366                                                   589 
367 config NR_CPUS                                 !! 590 config VERBOSE_MCHECK
368         int "Maximum number of CPUs (2-32)"    !! 591         bool "Verbose Machine Checks"
369         range 2 32                             << 
370         depends on SMP                         << 
371         default "8" if 64BIT                   << 
372         default "16"                           << 
373                                                   592 
374 endmenu                                        !! 593 config VERBOSE_MCHECK_ON
                                                   >> 594         int "Verbose Printing Mode (0=off, 1=on, 2=all)"
                                                   >> 595         depends on VERBOSE_MCHECK
                                                   >> 596         default 1
                                                   >> 597         help
                                                   >> 598           This option allows the default printing mode to be set, and then
                                                   >> 599           possibly overridden by a boot command argument.
375                                                   600 
376 config ARCH_SUPPORTS_KEXEC                     !! 601           For example, if one wanted the option of printing verbose
377         def_bool y                             !! 602           machine checks, but wanted the default to be as if verbose
                                                   >> 603           machine check printing was turned off, then one would choose
                                                   >> 604           the printing mode to be 0. Then, upon reboot, one could add
                                                   >> 605           the boot command line "verbose_mcheck=1" to get the normal
                                                   >> 606           verbose machine check printing, or "verbose_mcheck=2" to get
                                                   >> 607           the maximum information available.
378                                                   608 
379 config ARCH_SUPPORTS_KEXEC_FILE                !! 609           Take the default (1) unless you want more control or more info.
380         def_bool y                             << 
381                                                   610 
382 config ARCH_SELECTS_KEXEC_FILE                 !! 611 choice
383         def_bool y                             !! 612         prompt "Timer interrupt frequency (HZ)?"
384         depends on KEXEC_FILE                  !! 613         default HZ_128 if ALPHA_QEMU
385         select KEXEC_ELF                       !! 614         default HZ_1200 if ALPHA_RAWHIDE
                                                   >> 615         default HZ_1024
                                                   >> 616         help
                                                   >> 617           The frequency at which timer interrupts occur.  A high frequency
                                                   >> 618           minimizes latency, whereas a low frequency minimizes overhead of
                                                   >> 619           process accounting.  The later effect is especially significant
                                                   >> 620           when being run under QEMU.
                                                   >> 621 
                                                   >> 622           Note that some Alpha hardware cannot change the interrupt frequency
                                                   >> 623           of the timer.  If unsure, say 1024 (or 1200 for Rawhide).
                                                   >> 624 
                                                   >> 625         config HZ_32
                                                   >> 626                 bool "32 Hz"
                                                   >> 627         config HZ_64
                                                   >> 628                 bool "64 Hz"
                                                   >> 629         config HZ_128
                                                   >> 630                 bool "128 Hz"
                                                   >> 631         config HZ_256
                                                   >> 632                 bool "256 Hz"
                                                   >> 633         config HZ_1024
                                                   >> 634                 bool "1024 Hz"
                                                   >> 635         config HZ_1200
                                                   >> 636                 bool "1200 Hz"
                                                   >> 637 endchoice
                                                   >> 638 
                                                   >> 639 config HZ
                                                   >> 640         int
                                                   >> 641         default 32 if HZ_32
                                                   >> 642         default 64 if HZ_64
                                                   >> 643         default 128 if HZ_128
                                                   >> 644         default 256 if HZ_256
                                                   >> 645         default 1200 if HZ_1200
                                                   >> 646         default 1024
                                                   >> 647 
                                                   >> 648 config SRM_ENV
                                                   >> 649         tristate "SRM environment through procfs"
                                                   >> 650         depends on PROC_FS
                                                   >> 651         help
                                                   >> 652           If you enable this option, a subdirectory inside /proc called
                                                   >> 653           /proc/srm_environment will give you access to the all important
                                                   >> 654           SRM environment variables (those which have a name) and also
                                                   >> 655           to all others (by their internal number).
                                                   >> 656 
                                                   >> 657           SRM is something like a BIOS for Alpha machines. There are some
                                                   >> 658           other such BIOSes, like AlphaBIOS, which this driver cannot
                                                   >> 659           support (hey, that's not SRM!).
                                                   >> 660 
                                                   >> 661           Despite the fact that this driver doesn't work on all Alphas (but
                                                   >> 662           only on those which have SRM as their firmware), it's save to
                                                   >> 663           build it even if your particular machine doesn't know about SRM
                                                   >> 664           (or if you intend to compile a generic kernel). It will simply
                                                   >> 665           not create those subdirectory in /proc (and give you some warning,
                                                   >> 666           of course).
386                                                   667 
387 source "drivers/parisc/Kconfig"                !! 668           This driver is also available as a module and will be called
                                                   >> 669           srm_env then.
                                                   >> 670 
                                                   >> 671 endmenu
                                                   >> 672 
                                                   >> 673 # DUMMY_CONSOLE may be defined in drivers/video/console/Kconfig
                                                   >> 674 # but we also need it if VGA_HOSE is set
                                                   >> 675 config DUMMY_CONSOLE
                                                   >> 676         bool
                                                   >> 677         depends on VGA_HOSE
                                                   >> 678         default y
                                                      

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