1 # SPDX-License-Identifier: GPL-2.0-only 1 # SPDX-License-Identifier: GPL-2.0-only
2 config CSKY !! 2 config 64BIT
3 def_bool y !! 3 bool "64-bit kernel" if "$(ARCH)" = "sparc"
>> 4 default "$(ARCH)" = "sparc64"
>> 5 help
>> 6 SPARC is a family of RISC microprocessors designed and marketed by
>> 7 Sun Microsystems, incorporated. They are very widely found in Sun
>> 8 workstations and clones.
>> 9
>> 10 Say yes to build a 64-bit kernel - formerly known as sparc64
>> 11 Say no to build a 32-bit kernel - formerly known as sparc
>> 12
>> 13 config SPARC
>> 14 bool
>> 15 default y
>> 16 select ARCH_MIGHT_HAVE_PC_PARPORT if SPARC64 && PCI
>> 17 select ARCH_MIGHT_HAVE_PC_SERIO
>> 18 select OF
>> 19 select OF_PROMTREE
>> 20 select HAVE_ASM_MODVERSIONS
>> 21 select HAVE_IDE
>> 22 select HAVE_OPROFILE
>> 23 select HAVE_ARCH_KGDB if !SMP || SPARC64
>> 24 select HAVE_ARCH_TRACEHOOK
>> 25 select HAVE_EXIT_THREAD
>> 26 select HAVE_PCI
>> 27 select SYSCTL_EXCEPTION_TRACE
>> 28 select RTC_CLASS
>> 29 select RTC_DRV_M48T59
>> 30 select RTC_SYSTOHC
>> 31 select HAVE_ARCH_JUMP_LABEL if SPARC64
>> 32 select GENERIC_IRQ_SHOW
>> 33 select ARCH_WANT_IPC_PARSE_VERSION
>> 34 select GENERIC_PCI_IOMAP
>> 35 select HAVE_NMI_WATCHDOG if SPARC64
>> 36 select HAVE_CBPF_JIT if SPARC32
>> 37 select HAVE_EBPF_JIT if SPARC64
>> 38 select HAVE_DEBUG_BUGVERBOSE
>> 39 select GENERIC_SMP_IDLE_THREAD
>> 40 select GENERIC_CLOCKEVENTS
>> 41 select GENERIC_STRNCPY_FROM_USER
>> 42 select GENERIC_STRNLEN_USER
>> 43 select MODULES_USE_ELF_RELA
>> 44 select PCI_SYSCALL if PCI
>> 45 select ODD_RT_SIGACTION
>> 46 select OLD_SIGSUSPEND
>> 47 select CPU_NO_EFFICIENT_FFS
>> 48 select LOCKDEP_SMALL if LOCKDEP
>> 49 select NEED_DMA_MAP_STATE
>> 50 select NEED_SG_DMA_LENGTH
>> 51
>> 52 config SPARC32
>> 53 def_bool !64BIT
4 select ARCH_32BIT_OFF_T 54 select ARCH_32BIT_OFF_T
5 select ARCH_HAS_CPU_CACHE_ALIASING <<
6 select ARCH_HAS_DMA_PREP_COHERENT <<
7 select ARCH_HAS_GCOV_PROFILE_ALL <<
8 select ARCH_HAS_SYNC_DMA_FOR_CPU 55 select ARCH_HAS_SYNC_DMA_FOR_CPU
9 select ARCH_HAS_SYNC_DMA_FOR_DEVICE <<
10 select ARCH_USE_BUILTIN_BSWAP <<
11 select ARCH_USE_QUEUED_RWLOCKS <<
12 select ARCH_USE_QUEUED_SPINLOCKS <<
13 select ARCH_HAS_CURRENT_STACK_POINTER <<
14 select ARCH_INLINE_READ_LOCK if !PREEM <<
15 select ARCH_INLINE_READ_LOCK_BH if !PR <<
16 select ARCH_INLINE_READ_LOCK_IRQ if !P <<
17 select ARCH_INLINE_READ_LOCK_IRQSAVE i <<
18 select ARCH_INLINE_READ_UNLOCK if !PRE <<
19 select ARCH_INLINE_READ_UNLOCK_BH if ! <<
20 select ARCH_INLINE_READ_UNLOCK_IRQ if <<
21 select ARCH_INLINE_READ_UNLOCK_IRQREST <<
22 select ARCH_INLINE_WRITE_LOCK if !PREE <<
23 select ARCH_INLINE_WRITE_LOCK_BH if !P <<
24 select ARCH_INLINE_WRITE_LOCK_IRQ if ! <<
25 select ARCH_INLINE_WRITE_LOCK_IRQSAVE <<
26 select ARCH_INLINE_WRITE_UNLOCK if !PR <<
27 select ARCH_INLINE_WRITE_UNLOCK_BH if <<
28 select ARCH_INLINE_WRITE_UNLOCK_IRQ if <<
29 select ARCH_INLINE_WRITE_UNLOCK_IRQRES <<
30 select ARCH_INLINE_SPIN_TRYLOCK if !PR <<
31 select ARCH_INLINE_SPIN_TRYLOCK_BH if <<
32 select ARCH_INLINE_SPIN_LOCK if !PREEM <<
33 select ARCH_INLINE_SPIN_LOCK_BH if !PR <<
34 select ARCH_INLINE_SPIN_LOCK_IRQ if !P <<
35 select ARCH_INLINE_SPIN_LOCK_IRQSAVE i <<
36 select ARCH_INLINE_SPIN_UNLOCK if !PRE <<
37 select ARCH_INLINE_SPIN_UNLOCK_BH if ! <<
38 select ARCH_INLINE_SPIN_UNLOCK_IRQ if <<
39 select ARCH_INLINE_SPIN_UNLOCK_IRQREST <<
40 select ARCH_NEED_CMPXCHG_1_EMU <<
41 select ARCH_WANT_FRAME_POINTERS if !CP <<
42 select ARCH_WANT_DEFAULT_TOPDOWN_MMAP_ <<
43 select COMMON_CLK <<
44 select CLKSRC_MMIO <<
45 select CSKY_MPINTC if CPU_CK860 <<
46 select CSKY_MP_TIMER if CPU_CK860 <<
47 select CSKY_APB_INTC <<
48 select DMA_DIRECT_REMAP <<
49 select IRQ_DOMAIN <<
50 select DW_APB_TIMER_OF <<
51 select GENERIC_IOREMAP <<
52 select GENERIC_LIB_ASHLDI3 <<
53 select GENERIC_LIB_ASHRDI3 <<
54 select GENERIC_LIB_LSHRDI3 <<
55 select GENERIC_LIB_MULDI3 <<
56 select GENERIC_LIB_CMPDI2 <<
57 select GENERIC_LIB_UCMPDI2 <<
58 select GENERIC_ALLOCATOR <<
59 select GENERIC_ATOMIC64 56 select GENERIC_ATOMIC64
60 select GENERIC_CPU_DEVICES !! 57 select CLZ_TAB
61 select GENERIC_IRQ_CHIP !! 58 select HAVE_UID16
62 select GENERIC_IRQ_PROBE !! 59 select OLD_SIGACTION
63 select GENERIC_IRQ_SHOW !! 60
64 select GENERIC_IRQ_MULTI_HANDLER !! 61 config SPARC64
65 select GENERIC_SCHED_CLOCK !! 62 def_bool 64BIT
66 select GENERIC_SMP_IDLE_THREAD <<
67 select GENERIC_TIME_VSYSCALL <<
68 select GENERIC_VDSO_32 <<
69 select GENERIC_GETTIMEOFDAY <<
70 select GX6605S_TIMER if CPU_CK610 <<
71 select HAVE_ARCH_TRACEHOOK <<
72 select HAVE_ARCH_AUDITSYSCALL <<
73 select HAVE_ARCH_JUMP_LABEL if !CPU_CK <<
74 select HAVE_ARCH_JUMP_LABEL_RELATIVE <<
75 select HAVE_ARCH_MMAP_RND_BITS <<
76 select HAVE_ARCH_SECCOMP_FILTER <<
77 select HAVE_CONTEXT_TRACKING_USER <<
78 select HAVE_VIRT_CPU_ACCOUNTING_GEN <<
79 select HAVE_DEBUG_BUGVERBOSE <<
80 select HAVE_DEBUG_KMEMLEAK <<
81 select HAVE_DYNAMIC_FTRACE <<
82 select HAVE_DYNAMIC_FTRACE_WITH_REGS <<
83 select HAVE_GENERIC_VDSO <<
84 select HAVE_FUNCTION_TRACER 63 select HAVE_FUNCTION_TRACER
85 select HAVE_FUNCTION_GRAPH_TRACER 64 select HAVE_FUNCTION_GRAPH_TRACER
86 select HAVE_FUNCTION_ERROR_INJECTION !! 65 select HAVE_KRETPROBES
>> 66 select HAVE_KPROBES
>> 67 select HAVE_RCU_TABLE_FREE if SMP
>> 68 select HAVE_MEMBLOCK_NODE_MAP
>> 69 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
>> 70 select HAVE_DYNAMIC_FTRACE
87 select HAVE_FTRACE_MCOUNT_RECORD 71 select HAVE_FTRACE_MCOUNT_RECORD
88 select HAVE_KERNEL_GZIP !! 72 select HAVE_SYSCALL_TRACEPOINTS
89 select HAVE_KERNEL_LZO !! 73 select HAVE_CONTEXT_TRACKING
90 select HAVE_KERNEL_LZMA !! 74 select HAVE_DEBUG_KMEMLEAK
91 select HAVE_KPROBES if !CPU_CK610 !! 75 select IOMMU_HELPER
92 select HAVE_KPROBES_ON_FTRACE if !CPU_ !! 76 select SPARSE_IRQ
93 select HAVE_KRETPROBES if !CPU_CK610 !! 77 select RTC_DRV_CMOS
94 select HAVE_PAGE_SIZE_4KB !! 78 select RTC_DRV_BQ4802
>> 79 select RTC_DRV_SUN4V
>> 80 select RTC_DRV_STARFIRE
95 select HAVE_PERF_EVENTS 81 select HAVE_PERF_EVENTS
96 select HAVE_PERF_REGS !! 82 select PERF_USE_VMALLOC
97 select HAVE_PERF_USER_STACK_DUMP !! 83 select IRQ_PREFLOW_FASTEOI
98 select HAVE_DMA_CONTIGUOUS !! 84 select ARCH_HAVE_NMI_SAFE_CMPXCHG
>> 85 select HAVE_C_RECORDMCOUNT
>> 86 select HAVE_ARCH_AUDITSYSCALL
>> 87 select ARCH_SUPPORTS_ATOMIC_RMW
>> 88 select HAVE_NMI
99 select HAVE_REGS_AND_STACK_ACCESS_API 89 select HAVE_REGS_AND_STACK_ACCESS_API
100 select HAVE_STACKPROTECTOR !! 90 select ARCH_USE_QUEUED_RWLOCKS
101 select HAVE_SYSCALL_TRACEPOINTS !! 91 select ARCH_USE_QUEUED_SPINLOCKS
102 select HOTPLUG_CORE_SYNC_DEAD if HOTPL !! 92 select GENERIC_TIME_VSYSCALL
103 select LOCK_MM_AND_FIND_VMA !! 93 select ARCH_CLOCKSOURCE_DATA
104 select MAY_HAVE_SPARSE_IRQ !! 94 select ARCH_HAS_PTE_SPECIAL
105 select MODULES_USE_ELF_RELA if MODULES !! 95 select PCI_DOMAINS if PCI
106 select OF !! 96 select ARCH_HAS_GIGANTIC_PAGE
107 select OF_EARLY_FLATTREE !! 97
108 select PERF_USE_VMALLOC if CPU_CK610 !! 98 config ARCH_DEFCONFIG
109 select RTC_LIB !! 99 string
110 select TIMER_OF !! 100 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
111 select GENERIC_PCI_IOMAP !! 101 default "arch/sparc/configs/sparc64_defconfig" if SPARC64
112 select HAVE_PCI <<
113 select PCI_DOMAINS_GENERIC if PCI <<
114 select PCI_SYSCALL if PCI <<
115 select PCI_MSI if PCI <<
116 select TRACE_IRQFLAGS_SUPPORT <<
117 102
118 config LOCKDEP_SUPPORT !! 103 config ARCH_PROC_KCORE_TEXT
119 def_bool y 104 def_bool y
120 105
121 config ARCH_SUPPORTS_UPROBES !! 106 config CPU_BIG_ENDIAN
122 def_bool y if !CPU_CK610 !! 107 def_bool y
123 108
124 config CPU_HAS_CACHEV2 !! 109 config ARCH_ATU
125 bool 110 bool
>> 111 default y if SPARC64
126 112
127 config CPU_HAS_FPUV2 !! 113 config STACKTRACE_SUPPORT
128 bool 114 bool
>> 115 default y if SPARC64
129 116
130 config CPU_HAS_HILO !! 117 config LOCKDEP_SUPPORT
131 bool 118 bool
>> 119 default y if SPARC64
>> 120
>> 121 config ARCH_HIBERNATION_POSSIBLE
>> 122 def_bool y if SPARC64
132 123
133 config CPU_HAS_TLBI !! 124 config AUDIT_ARCH
134 bool 125 bool
>> 126 default y
>> 127
>> 128 config HAVE_SETUP_PER_CPU_AREA
>> 129 def_bool y if SPARC64
>> 130
>> 131 config NEED_PER_CPU_EMBED_FIRST_CHUNK
>> 132 def_bool y if SPARC64
>> 133
>> 134 config NEED_PER_CPU_PAGE_FIRST_CHUNK
>> 135 def_bool y if SPARC64
135 136
136 config CPU_HAS_LDSTEX !! 137 config MMU
137 bool 138 bool
138 help !! 139 default y
139 For SMP, CPU needs "ldex&stex" instr <<
140 140
141 config CPU_NEED_TLBSYNC !! 141 config HIGHMEM
142 bool 142 bool
>> 143 default y if SPARC32
143 144
144 config CPU_NEED_SOFTALIGN !! 145 config ZONE_DMA
145 bool 146 bool
>> 147 default y if SPARC32
146 148
147 config CPU_NO_USER_BKPT !! 149 config GENERIC_ISA_DMA
148 bool 150 bool
149 help !! 151 default y if SPARC32
150 For abiv2 we couldn't use "trap 1" a <<
151 abiv2 is 16/32bit instruction set an <<
152 So we need a 16bit instruction as us <<
153 instruction exception. <<
154 In kernel we parse the *regs->pc to <<
155 152
156 config GENERIC_CALIBRATE_DELAY !! 153 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
157 def_bool y !! 154 def_bool y if SPARC64
158 155
159 config GENERIC_CSUM !! 156 config PGTABLE_LEVELS
160 def_bool y !! 157 default 4 if 64BIT
>> 158 default 3
>> 159
>> 160 config ARCH_SUPPORTS_UPROBES
>> 161 def_bool y if SPARC64
>> 162
>> 163 menu "Processor type and features"
>> 164
>> 165 config SMP
>> 166 bool "Symmetric multi-processing support"
>> 167 ---help---
>> 168 This enables support for systems with more than one CPU. If you have
>> 169 a system with only one CPU, say N. If you have a system with more
>> 170 than one CPU, say Y.
>> 171
>> 172 If you say N here, the kernel will run on uni- and multiprocessor
>> 173 machines, but will use only one CPU of a multiprocessor machine. If
>> 174 you say Y here, the kernel will run on many, but not all,
>> 175 uniprocessor machines. On a uniprocessor machine, the kernel
>> 176 will run faster if you say N here.
>> 177
>> 178 People using multiprocessor machines who say Y here should also say
>> 179 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
>> 180 Management" code will be disabled if you say Y here.
>> 181
>> 182 See also <file:Documentation/admin-guide/lockup-watchdogs.rst> and the SMP-HOWTO
>> 183 available at <http://www.tldp.org/docs.html#howto>.
>> 184
>> 185 If you don't know what to do here, say N.
>> 186
>> 187 config NR_CPUS
>> 188 int "Maximum number of CPUs"
>> 189 depends on SMP
>> 190 range 2 32 if SPARC32
>> 191 range 2 4096 if SPARC64
>> 192 default 32 if SPARC32
>> 193 default 4096 if SPARC64
>> 194
>> 195 source "kernel/Kconfig.hz"
161 196
162 config GENERIC_HWEIGHT 197 config GENERIC_HWEIGHT
163 def_bool y !! 198 bool
>> 199 default y
164 200
165 config MMU !! 201 config GENERIC_CALIBRATE_DELAY
166 def_bool y !! 202 bool
>> 203 default y
167 204
168 config STACKTRACE_SUPPORT !! 205 config ARCH_MAY_HAVE_PC_FDC
169 def_bool y !! 206 bool
>> 207 default y
>> 208
>> 209 config EMULATED_CMPXCHG
>> 210 bool
>> 211 default y if SPARC32
>> 212 help
>> 213 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
>> 214 is emulated, and therefore it is not completely atomic.
170 215
171 config TIME_LOW_RES !! 216 # Makefile helpers
>> 217 config SPARC32_SMP
>> 218 bool
>> 219 default y
>> 220 depends on SPARC32 && SMP
>> 221
>> 222 config SPARC64_SMP
>> 223 bool
>> 224 default y
>> 225 depends on SPARC64 && SMP
>> 226
>> 227 config EARLYFB
>> 228 bool "Support for early boot text console"
>> 229 default y
>> 230 depends on SPARC64
>> 231 help
>> 232 Say Y here to enable a faster early framebuffer boot console.
>> 233
>> 234 config SECCOMP
>> 235 bool "Enable seccomp to safely compute untrusted bytecode"
>> 236 depends on SPARC64 && PROC_FS
>> 237 default y
>> 238 help
>> 239 This kernel feature is useful for number crunching applications
>> 240 that may need to compute untrusted bytecode during their
>> 241 execution. By using pipes or other transports made available to
>> 242 the process as file descriptors supporting the read/write
>> 243 syscalls, it's possible to isolate those applications in
>> 244 their own address space using seccomp. Once seccomp is
>> 245 enabled via /proc/<pid>/seccomp, it cannot be disabled
>> 246 and the task is only allowed to execute a few safe syscalls
>> 247 defined by each seccomp mode.
>> 248
>> 249 If unsure, say Y. Only embedded should say N here.
>> 250
>> 251 config HOTPLUG_CPU
>> 252 bool "Support for hot-pluggable CPUs"
>> 253 depends on SPARC64 && SMP
>> 254 help
>> 255 Say Y here to experiment with turning CPUs off and on. CPUs
>> 256 can be controlled through /sys/devices/system/cpu/cpu#.
>> 257 Say N if you want to disable CPU hotplug.
>> 258
>> 259 if SPARC64
>> 260 source "drivers/cpufreq/Kconfig"
>> 261 endif
>> 262
>> 263 config US3_MC
>> 264 tristate "UltraSPARC-III Memory Controller driver"
>> 265 depends on SPARC64
>> 266 default y
>> 267 help
>> 268 This adds a driver for the UltraSPARC-III memory controller.
>> 269 Loading this driver allows exact mnemonic strings to be
>> 270 printed in the event of a memory error, so that the faulty DIMM
>> 271 on the motherboard can be matched to the error.
>> 272
>> 273 If in doubt, say Y, as this information can be very useful.
>> 274
>> 275 # Global things across all Sun machines.
>> 276 config GENERIC_LOCKBREAK
>> 277 bool
>> 278 default y
>> 279 depends on SPARC64 && SMP && PREEMPT
>> 280
>> 281 config NUMA
>> 282 bool "NUMA support"
>> 283 depends on SPARC64 && SMP
>> 284
>> 285 config NODES_SHIFT
>> 286 int "Maximum NUMA Nodes (as a power of 2)"
>> 287 range 4 5 if SPARC64
>> 288 default "5"
>> 289 depends on NEED_MULTIPLE_NODES
>> 290 help
>> 291 Specify the maximum number of NUMA Nodes available on the target
>> 292 system. Increases memory reserved to accommodate various tables.
>> 293
>> 294 # Some NUMA nodes have memory ranges that span
>> 295 # other nodes. Even though a pfn is valid and
>> 296 # between a node's start and end pfns, it may not
>> 297 # reside on that node. See memmap_init_zone()
>> 298 # for details.
>> 299 config NODES_SPAN_OTHER_NODES
172 def_bool y 300 def_bool y
>> 301 depends on NEED_MULTIPLE_NODES
173 302
174 config CPU_ASID_BITS !! 303 config ARCH_SPARSEMEM_ENABLE
175 int !! 304 def_bool y if SPARC64
176 default "8" if (CPU_CK610 || CPU_C !! 305 select SPARSEMEM_VMEMMAP_ENABLE
177 default "12" if (CPU_CK860) !! 306
178 !! 307 config ARCH_SPARSEMEM_DEFAULT
179 config L1_CACHE_SHIFT !! 308 def_bool y if SPARC64
180 int !! 309
181 default "4" if (CPU_CK610) !! 310 config FORCE_MAX_ZONEORDER
182 default "5" if (CPU_CK807 || CPU_C !! 311 int "Maximum zone order"
183 default "6" if (CPU_CK860) !! 312 default "13"
184 !! 313 help
185 config ARCH_MMAP_RND_BITS_MIN !! 314 The kernel memory allocator divides physically contiguous memory
186 default 8 !! 315 blocks into "zones", where each zone is a power of two number of
187 !! 316 pages. This option selects the largest power of two that the kernel
188 # max bits determined by the following formula !! 317 keeps in the memory allocator. If you need to allocate very large
189 # VA_BITS - PAGE_SHIFT - 3 !! 318 blocks of physically contiguous memory, then you may need to
190 config ARCH_MMAP_RND_BITS_MAX !! 319 increase this value.
191 default 17 <<
192 320
193 menu "Processor type and features" !! 321 This config option is actually maximum order plus one. For example,
>> 322 a value of 13 means that the largest free memory block is 2^12 pages.
194 323
195 choice !! 324 if SPARC64
196 prompt "CPU MODEL" !! 325 source "kernel/power/Kconfig"
197 default CPU_CK807 <<
198 <<
199 config CPU_CK610 <<
200 bool "CSKY CPU ck610" <<
201 select CPU_NEED_TLBSYNC <<
202 select CPU_NEED_SOFTALIGN <<
203 select CPU_NO_USER_BKPT <<
204 <<
205 config CPU_CK810 <<
206 bool "CSKY CPU ck810" <<
207 select CPU_HAS_HILO <<
208 select CPU_NEED_TLBSYNC <<
209 <<
210 config CPU_CK807 <<
211 bool "CSKY CPU ck807" <<
212 select CPU_HAS_HILO <<
213 <<
214 config CPU_CK860 <<
215 bool "CSKY CPU ck860" <<
216 select CPU_HAS_TLBI <<
217 select CPU_HAS_CACHEV2 <<
218 select CPU_HAS_LDSTEX <<
219 select CPU_HAS_FPUV2 <<
220 endchoice <<
221 <<
222 choice <<
223 prompt "PAGE OFFSET" <<
224 default PAGE_OFFSET_80000000 <<
225 <<
226 config PAGE_OFFSET_80000000 <<
227 bool "PAGE OFFSET 2G (user:kernel = 2: <<
228 <<
229 config PAGE_OFFSET_A0000000 <<
230 bool "PAGE OFFSET 2.5G (user:kernel = <<
231 endchoice <<
232 <<
233 config PAGE_OFFSET <<
234 hex <<
235 default 0x80000000 if PAGE_OFFSET_8000 <<
236 default 0xa0000000 if PAGE_OFFSET_A000 <<
237 choice <<
238 <<
239 prompt "C-SKY PMU type" <<
240 depends on PERF_EVENTS <<
241 depends on CPU_CK807 || CPU_CK810 || C <<
242 <<
243 config CPU_PMU_NONE <<
244 bool "None" <<
245 <<
246 config CSKY_PMU_V1 <<
247 bool "Performance Monitoring Unit Ver. <<
248 <<
249 endchoice <<
250 <<
251 choice <<
252 prompt "Power Manager Instruction (wai <<
253 default CPU_PM_NONE <<
254 <<
255 config CPU_PM_NONE <<
256 bool "None" <<
257 <<
258 config CPU_PM_WAIT <<
259 bool "wait" <<
260 <<
261 config CPU_PM_DOZE <<
262 bool "doze" <<
263 <<
264 config CPU_PM_STOP <<
265 bool "stop" <<
266 endchoice <<
267 <<
268 menuconfig HAVE_TCM <<
269 bool "Tightly-Coupled/Sram Memory" <<
270 depends on !COMPILE_TEST <<
271 help <<
272 The implementation are not only used <<
273 but also used by sram on SOC bus. It <<
274 software interface, so that old tcm <<
275 re-used directly. <<
276 <<
277 if HAVE_TCM <<
278 config ITCM_RAM_BASE <<
279 hex "ITCM ram base" <<
280 default 0xffffffff <<
281 <<
282 config ITCM_NR_PAGES <<
283 int "Page count of ITCM size: NR*4KB" <<
284 range 1 256 <<
285 default 32 <<
286 <<
287 config HAVE_DTCM <<
288 bool "DTCM Support" <<
289 <<
290 config DTCM_RAM_BASE <<
291 hex "DTCM ram base" <<
292 depends on HAVE_DTCM <<
293 default 0xffffffff <<
294 <<
295 config DTCM_NR_PAGES <<
296 int "Page count of DTCM size: NR*4KB" <<
297 depends on HAVE_DTCM <<
298 range 1 256 <<
299 default 32 <<
300 endif 326 endif
301 327
302 config CPU_HAS_VDSP !! 328 config SCHED_SMT
303 bool "CPU has VDSP coprocessor" !! 329 bool "SMT (Hyperthreading) scheduler support"
304 depends on CPU_HAS_FPU && CPU_HAS_FPUV !! 330 depends on SPARC64 && SMP
305 !! 331 default y
306 config CPU_HAS_FPU !! 332 help
307 bool "CPU has FPU coprocessor" !! 333 SMT scheduler support improves the CPU scheduler's decision making
308 depends on CPU_CK807 || CPU_CK810 || C !! 334 when dealing with SPARC cpus at a cost of slightly increased overhead
309 !! 335 in some places. If unsure say N here.
310 config CPU_HAS_ICACHE_INS !! 336
311 bool "CPU has Icache invalidate instru !! 337 config SCHED_MC
312 depends on CPU_HAS_CACHEV2 !! 338 bool "Multi-core scheduler support"
313 !! 339 depends on SPARC64 && SMP
314 config CPU_HAS_TEE !! 340 default y
315 bool "CPU has Trusted Execution Enviro !! 341 help
316 depends on CPU_CK810 !! 342 Multi-core scheduler support improves the CPU scheduler's decision
>> 343 making when dealing with multi-core CPU chips at a cost of slightly
>> 344 increased overhead in some places. If unsure say N here.
>> 345
>> 346 config CMDLINE_BOOL
>> 347 bool "Default bootloader kernel arguments"
>> 348 depends on SPARC64
>> 349
>> 350 config CMDLINE
>> 351 string "Initial kernel command string"
>> 352 depends on CMDLINE_BOOL
>> 353 default "console=ttyS0,9600 root=/dev/sda1"
>> 354 help
>> 355 Say Y here if you want to be able to pass default arguments to
>> 356 the kernel. This will be overridden by the bootloader, if you
>> 357 use one (such as SILO). This is most useful if you want to boot
>> 358 a kernel from TFTP, and want default options to be available
>> 359 with having them passed on the command line.
317 360
318 config SMP !! 361 NOTE: This option WILL override the PROM bootargs setting!
319 bool "Symmetric Multi-Processing (SMP) <<
320 depends on CPU_CK860 <<
321 default n <<
322 362
323 config NR_CPUS !! 363 config SUN_PM
324 int "Maximum number of CPUs (2-32)" !! 364 bool
325 range 2 32 !! 365 default y if SPARC32
326 depends on SMP !! 366 help
327 default "4" !! 367 Enable power management and CPU standby features on supported
>> 368 SPARC platforms.
328 369
329 config HIGHMEM !! 370 config SPARC_LED
330 bool "High Memory Support" !! 371 tristate "Sun4m LED driver"
331 depends on !CPU_CK610 !! 372 depends on SPARC32
332 select KMAP_LOCAL !! 373 help
>> 374 This driver toggles the front-panel LED on sun4m systems
>> 375 in a user-specifiable manner. Its state can be probed
>> 376 by reading /proc/led and its blinking mode can be changed
>> 377 via writes to /proc/led
>> 378
>> 379 config SERIAL_CONSOLE
>> 380 bool
>> 381 depends on SPARC32
333 default y 382 default y
>> 383 ---help---
>> 384 If you say Y here, it will be possible to use a serial port as the
>> 385 system console (the system console is the device which receives all
>> 386 kernel messages and warnings and which allows logins in single user
>> 387 mode). This could be useful if some terminal or printer is connected
>> 388 to that serial port.
>> 389
>> 390 Even if you say Y here, the currently visible virtual console
>> 391 (/dev/tty0) will still be used as the system console by default, but
>> 392 you can alter that using a kernel command line option such as
>> 393 "console=ttyS1". (Try "man bootparam" or see the documentation of
>> 394 your boot loader (silo) about how to pass options to the kernel at
>> 395 boot time.)
>> 396
>> 397 If you don't have a graphics card installed and you say Y here, the
>> 398 kernel will automatically use the first serial line, /dev/ttyS0, as
>> 399 system console.
>> 400
>> 401 If unsure, say N.
>> 402
>> 403 config SPARC_LEON
>> 404 bool "Sparc Leon processor family"
>> 405 depends on SPARC32
>> 406 select USB_EHCI_BIG_ENDIAN_MMIO
>> 407 select USB_EHCI_BIG_ENDIAN_DESC
>> 408 select USB_UHCI_BIG_ENDIAN_MMIO
>> 409 select USB_UHCI_BIG_ENDIAN_DESC
>> 410 ---help---
>> 411 If you say Y here if you are running on a SPARC-LEON processor.
>> 412 The LEON processor is a synthesizable VHDL model of the
>> 413 SPARC-v8 standard. LEON is part of the GRLIB collection of
>> 414 IP cores that are distributed under GPL. GRLIB can be downloaded
>> 415 from www.gaisler.com. You can download a sparc-linux cross-compilation
>> 416 toolchain at www.gaisler.com.
>> 417
>> 418 if SPARC_LEON
>> 419 menu "U-Boot options"
>> 420
>> 421 config UBOOT_LOAD_ADDR
>> 422 hex "uImage Load Address"
>> 423 default 0x40004000
>> 424 ---help---
>> 425 U-Boot kernel load address, the address in physical address space
>> 426 where u-boot will place the Linux kernel before booting it.
>> 427 This address is normally the base address of main memory + 0x4000.
>> 428
>> 429 config UBOOT_FLASH_ADDR
>> 430 hex "uImage.o Load Address"
>> 431 default 0x00080000
>> 432 ---help---
>> 433 Optional setting only affecting the uImage.o ELF-image used to
>> 434 download the uImage file to the target using a ELF-loader other than
>> 435 U-Boot. It may for example be used to download an uImage to FLASH with
>> 436 the GRMON utility before even starting u-boot.
>> 437
>> 438 config UBOOT_ENTRY_ADDR
>> 439 hex "uImage Entry Address"
>> 440 default 0xf0004000
>> 441 ---help---
>> 442 Do not change this unless you know what you're doing. This is
>> 443 hardcoded by the SPARC32 and LEON port.
334 444
335 config DRAM_BASE !! 445 This is the virtual address u-boot jumps to when booting the Linux
336 hex "DRAM start addr (the same with me !! 446 Kernel.
337 default 0x0 <<
338 447
339 config HOTPLUG_CPU !! 448 endmenu
340 bool "Support for hot-pluggable CPUs" !! 449 endif
341 select GENERIC_IRQ_MIGRATION !! 450
342 depends on SMP !! 451 endmenu
>> 452
>> 453 menu "Bus options (PCI etc.)"
>> 454 config SBUS
>> 455 bool
>> 456 default y
>> 457
>> 458 config SBUSCHAR
>> 459 bool
>> 460 default y
>> 461
>> 462 config SUN_LDOMS
>> 463 bool "Sun Logical Domains support"
>> 464 depends on SPARC64
343 help 465 help
344 Say Y here to allow turning CPUs off !! 466 Say Y here is you want to support virtual devices via
345 controlled through /sys/devices/syst !! 467 Logical Domains.
346 468
347 Say N if you want to disable CPU hot !! 469 config PCIC_PCI
>> 470 bool
>> 471 depends on PCI && SPARC32 && !SPARC_LEON
>> 472 default y
>> 473
>> 474 config LEON_PCI
>> 475 bool
>> 476 depends on PCI && SPARC_LEON
>> 477 default y
348 478
349 config HAVE_EFFICIENT_UNALIGNED_STRING_OPS !! 479 config SPARC_GRPCI1
350 bool "Enable EFFICIENT_UNALIGNED_STRIN !! 480 bool "GRPCI Host Bridge Support"
351 depends on CPU_CK807 || CPU_CK810 || C !! 481 depends on LEON_PCI
>> 482 default y
352 help 483 help
353 Say Y here to enable EFFICIENT_UNALI !! 484 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
354 deal with unaligned access by hardwa !! 485 PCI host controller is typically found in GRLIB SPARC32/LEON
>> 486 systems. The driver has one property (all_pci_errors) controlled
>> 487 from the bootloader that makes the GRPCI to generate interrupts
>> 488 on detected PCI Parity and System errors.
>> 489
>> 490 config SPARC_GRPCI2
>> 491 bool "GRPCI2 Host Bridge Support"
>> 492 depends on LEON_PCI
>> 493 default y
>> 494 help
>> 495 Say Y here to include the GRPCI2 Host Bridge Driver.
>> 496
>> 497 config SUN_OPENPROMFS
>> 498 tristate "Openprom tree appears in /proc/openprom"
>> 499 help
>> 500 If you say Y, the OpenPROM device tree will be available as a
>> 501 virtual file system, which you can mount to /proc/openprom by "mount
>> 502 -t openpromfs none /proc/openprom".
>> 503
>> 504 To compile the /proc/openprom support as a module, choose M here: the
>> 505 module will be called openpromfs.
>> 506
>> 507 Only choose N if you know in advance that you will not need to modify
>> 508 OpenPROM settings on the running system.
>> 509
>> 510 # Makefile helpers
>> 511 config SPARC64_PCI
>> 512 bool
>> 513 default y
>> 514 depends on SPARC64 && PCI
>> 515
>> 516 config SPARC64_PCI_MSI
>> 517 bool
>> 518 default y
>> 519 depends on SPARC64_PCI && PCI_MSI
355 520
356 endmenu 521 endmenu
357 522
358 source "arch/csky/Kconfig.platforms" !! 523 config COMPAT
>> 524 bool
>> 525 depends on SPARC64
>> 526 default y
>> 527 select COMPAT_BINFMT_ELF
>> 528 select HAVE_UID16
>> 529 select ARCH_WANT_OLD_COMPAT_IPC
>> 530 select COMPAT_OLD_SIGACTION
>> 531
>> 532 config SYSVIPC_COMPAT
>> 533 bool
>> 534 depends on COMPAT && SYSVIPC
>> 535 default y
359 536
360 source "kernel/Kconfig.hz" !! 537 source "drivers/sbus/char/Kconfig"
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