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 !! 55 select ARCH_HAS_CPU_FINALIZE_INIT if !SMP
6 select ARCH_HAS_DMA_PREP_COHERENT <<
7 select ARCH_HAS_GCOV_PROFILE_ALL <<
8 select ARCH_HAS_SYNC_DMA_FOR_CPU 56 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 57 select GENERIC_ATOMIC64
60 select GENERIC_CPU_DEVICES !! 58 select CLZ_TAB
61 select GENERIC_IRQ_CHIP !! 59 select HAVE_UID16
62 select GENERIC_IRQ_PROBE !! 60 select OLD_SIGACTION
63 select GENERIC_IRQ_SHOW !! 61
64 select GENERIC_IRQ_MULTI_HANDLER !! 62 config SPARC64
65 select GENERIC_SCHED_CLOCK !! 63 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 64 select HAVE_FUNCTION_TRACER
85 select HAVE_FUNCTION_GRAPH_TRACER 65 select HAVE_FUNCTION_GRAPH_TRACER
86 select HAVE_FUNCTION_ERROR_INJECTION !! 66 select HAVE_KRETPROBES
>> 67 select HAVE_KPROBES
>> 68 select HAVE_RCU_TABLE_FREE if SMP
>> 69 select HAVE_MEMBLOCK_NODE_MAP
>> 70 select HAVE_ARCH_TRANSPARENT_HUGEPAGE
>> 71 select HAVE_DYNAMIC_FTRACE
87 select HAVE_FTRACE_MCOUNT_RECORD 72 select HAVE_FTRACE_MCOUNT_RECORD
88 select HAVE_KERNEL_GZIP !! 73 select HAVE_SYSCALL_TRACEPOINTS
89 select HAVE_KERNEL_LZO !! 74 select HAVE_CONTEXT_TRACKING
90 select HAVE_KERNEL_LZMA !! 75 select HAVE_DEBUG_KMEMLEAK
91 select HAVE_KPROBES if !CPU_CK610 !! 76 select IOMMU_HELPER
92 select HAVE_KPROBES_ON_FTRACE if !CPU_ !! 77 select SPARSE_IRQ
93 select HAVE_KRETPROBES if !CPU_CK610 !! 78 select RTC_DRV_CMOS
94 select HAVE_PAGE_SIZE_4KB !! 79 select RTC_DRV_BQ4802
>> 80 select RTC_DRV_SUN4V
>> 81 select RTC_DRV_STARFIRE
95 select HAVE_PERF_EVENTS 82 select HAVE_PERF_EVENTS
96 select HAVE_PERF_REGS !! 83 select PERF_USE_VMALLOC
97 select HAVE_PERF_USER_STACK_DUMP !! 84 select IRQ_PREFLOW_FASTEOI
98 select HAVE_DMA_CONTIGUOUS !! 85 select ARCH_HAVE_NMI_SAFE_CMPXCHG
>> 86 select HAVE_C_RECORDMCOUNT
>> 87 select HAVE_ARCH_AUDITSYSCALL
>> 88 select ARCH_SUPPORTS_ATOMIC_RMW
>> 89 select HAVE_NMI
99 select HAVE_REGS_AND_STACK_ACCESS_API 90 select HAVE_REGS_AND_STACK_ACCESS_API
100 select HAVE_STACKPROTECTOR !! 91 select ARCH_USE_QUEUED_RWLOCKS
101 select HAVE_SYSCALL_TRACEPOINTS !! 92 select ARCH_USE_QUEUED_SPINLOCKS
102 select HOTPLUG_CORE_SYNC_DEAD if HOTPL !! 93 select GENERIC_TIME_VSYSCALL
103 select LOCK_MM_AND_FIND_VMA !! 94 select ARCH_CLOCKSOURCE_DATA
104 select MAY_HAVE_SPARSE_IRQ !! 95 select ARCH_HAS_PTE_SPECIAL
105 select MODULES_USE_ELF_RELA if MODULES !! 96 select PCI_DOMAINS if PCI
106 select OF !! 97 select ARCH_HAS_GIGANTIC_PAGE
107 select OF_EARLY_FLATTREE !! 98
108 select PERF_USE_VMALLOC if CPU_CK610 !! 99 config ARCH_DEFCONFIG
109 select RTC_LIB !! 100 string
110 select TIMER_OF !! 101 default "arch/sparc/configs/sparc32_defconfig" if SPARC32
111 select GENERIC_PCI_IOMAP !! 102 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 <<
117 103
118 config LOCKDEP_SUPPORT !! 104 config ARCH_PROC_KCORE_TEXT
119 def_bool y 105 def_bool y
120 106
121 config ARCH_SUPPORTS_UPROBES !! 107 config CPU_BIG_ENDIAN
122 def_bool y if !CPU_CK610 !! 108 def_bool y
123 109
124 config CPU_HAS_CACHEV2 !! 110 config ARCH_ATU
125 bool 111 bool
>> 112 default y if SPARC64
126 113
127 config CPU_HAS_FPUV2 !! 114 config STACKTRACE_SUPPORT
128 bool 115 bool
>> 116 default y if SPARC64
129 117
130 config CPU_HAS_HILO !! 118 config LOCKDEP_SUPPORT
131 bool 119 bool
>> 120 default y if SPARC64
>> 121
>> 122 config ARCH_HIBERNATION_POSSIBLE
>> 123 def_bool y if SPARC64
132 124
133 config CPU_HAS_TLBI !! 125 config AUDIT_ARCH
134 bool 126 bool
>> 127 default y
>> 128
>> 129 config HAVE_SETUP_PER_CPU_AREA
>> 130 def_bool y if SPARC64
>> 131
>> 132 config NEED_PER_CPU_EMBED_FIRST_CHUNK
>> 133 def_bool y if SPARC64
>> 134
>> 135 config NEED_PER_CPU_PAGE_FIRST_CHUNK
>> 136 def_bool y if SPARC64
135 137
136 config CPU_HAS_LDSTEX !! 138 config MMU
137 bool 139 bool
138 help !! 140 default y
139 For SMP, CPU needs "ldex&stex" instr <<
140 141
141 config CPU_NEED_TLBSYNC !! 142 config HIGHMEM
142 bool 143 bool
>> 144 default y if SPARC32
143 145
144 config CPU_NEED_SOFTALIGN !! 146 config ZONE_DMA
145 bool 147 bool
>> 148 default y if SPARC32
146 149
147 config CPU_NO_USER_BKPT !! 150 config GENERIC_ISA_DMA
148 bool 151 bool
149 help !! 152 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 <<
155 153
156 config GENERIC_CALIBRATE_DELAY !! 154 config ARCH_SUPPORTS_DEBUG_PAGEALLOC
157 def_bool y !! 155 def_bool y if SPARC64
158 156
159 config GENERIC_CSUM !! 157 config PGTABLE_LEVELS
160 def_bool y !! 158 default 4 if 64BIT
>> 159 default 3
>> 160
>> 161 config ARCH_SUPPORTS_UPROBES
>> 162 def_bool y if SPARC64
>> 163
>> 164 menu "Processor type and features"
>> 165
>> 166 config SMP
>> 167 bool "Symmetric multi-processing support"
>> 168 ---help---
>> 169 This enables support for systems with more than one CPU. If you have
>> 170 a system with only one CPU, say N. If you have a system with more
>> 171 than one CPU, say Y.
>> 172
>> 173 If you say N here, the kernel will run on uni- and multiprocessor
>> 174 machines, but will use only one CPU of a multiprocessor machine. If
>> 175 you say Y here, the kernel will run on many, but not all,
>> 176 uniprocessor machines. On a uniprocessor machine, the kernel
>> 177 will run faster if you say N here.
>> 178
>> 179 People using multiprocessor machines who say Y here should also say
>> 180 Y to "Enhanced Real Time Clock Support", below. The "Advanced Power
>> 181 Management" code will be disabled if you say Y here.
>> 182
>> 183 See also <file:Documentation/admin-guide/lockup-watchdogs.rst> and the SMP-HOWTO
>> 184 available at <http://www.tldp.org/docs.html#howto>.
>> 185
>> 186 If you don't know what to do here, say N.
>> 187
>> 188 config NR_CPUS
>> 189 int "Maximum number of CPUs"
>> 190 depends on SMP
>> 191 range 2 32 if SPARC32
>> 192 range 2 4096 if SPARC64
>> 193 default 32 if SPARC32
>> 194 default 4096 if SPARC64
>> 195
>> 196 source "kernel/Kconfig.hz"
161 197
162 config GENERIC_HWEIGHT 198 config GENERIC_HWEIGHT
163 def_bool y !! 199 bool
>> 200 default y
164 201
165 config MMU !! 202 config GENERIC_CALIBRATE_DELAY
166 def_bool y !! 203 bool
>> 204 default y
167 205
168 config STACKTRACE_SUPPORT !! 206 config ARCH_MAY_HAVE_PC_FDC
169 def_bool y !! 207 bool
>> 208 default y
>> 209
>> 210 config EMULATED_CMPXCHG
>> 211 bool
>> 212 default y if SPARC32
>> 213 help
>> 214 Sparc32 does not have a CAS instruction like sparc64. cmpxchg()
>> 215 is emulated, and therefore it is not completely atomic.
170 216
171 config TIME_LOW_RES !! 217 # Makefile helpers
>> 218 config SPARC32_SMP
>> 219 bool
>> 220 default y
>> 221 depends on SPARC32 && SMP
>> 222
>> 223 config SPARC64_SMP
>> 224 bool
>> 225 default y
>> 226 depends on SPARC64 && SMP
>> 227
>> 228 config EARLYFB
>> 229 bool "Support for early boot text console"
>> 230 default y
>> 231 depends on SPARC64
>> 232 help
>> 233 Say Y here to enable a faster early framebuffer boot console.
>> 234
>> 235 config SECCOMP
>> 236 bool "Enable seccomp to safely compute untrusted bytecode"
>> 237 depends on SPARC64 && PROC_FS
>> 238 default y
>> 239 help
>> 240 This kernel feature is useful for number crunching applications
>> 241 that may need to compute untrusted bytecode during their
>> 242 execution. By using pipes or other transports made available to
>> 243 the process as file descriptors supporting the read/write
>> 244 syscalls, it's possible to isolate those applications in
>> 245 their own address space using seccomp. Once seccomp is
>> 246 enabled via /proc/<pid>/seccomp, it cannot be disabled
>> 247 and the task is only allowed to execute a few safe syscalls
>> 248 defined by each seccomp mode.
>> 249
>> 250 If unsure, say Y. Only embedded should say N here.
>> 251
>> 252 config HOTPLUG_CPU
>> 253 bool "Support for hot-pluggable CPUs"
>> 254 depends on SPARC64 && SMP
>> 255 help
>> 256 Say Y here to experiment with turning CPUs off and on. CPUs
>> 257 can be controlled through /sys/devices/system/cpu/cpu#.
>> 258 Say N if you want to disable CPU hotplug.
>> 259
>> 260 if SPARC64
>> 261 source "drivers/cpufreq/Kconfig"
>> 262 endif
>> 263
>> 264 config US3_MC
>> 265 tristate "UltraSPARC-III Memory Controller driver"
>> 266 depends on SPARC64
>> 267 default y
>> 268 help
>> 269 This adds a driver for the UltraSPARC-III memory controller.
>> 270 Loading this driver allows exact mnemonic strings to be
>> 271 printed in the event of a memory error, so that the faulty DIMM
>> 272 on the motherboard can be matched to the error.
>> 273
>> 274 If in doubt, say Y, as this information can be very useful.
>> 275
>> 276 # Global things across all Sun machines.
>> 277 config GENERIC_LOCKBREAK
>> 278 bool
>> 279 default y
>> 280 depends on SPARC64 && SMP && PREEMPT
>> 281
>> 282 config NUMA
>> 283 bool "NUMA support"
>> 284 depends on SPARC64 && SMP
>> 285
>> 286 config NODES_SHIFT
>> 287 int "Maximum NUMA Nodes (as a power of 2)"
>> 288 range 4 5 if SPARC64
>> 289 default "5"
>> 290 depends on NEED_MULTIPLE_NODES
>> 291 help
>> 292 Specify the maximum number of NUMA Nodes available on the target
>> 293 system. Increases memory reserved to accommodate various tables.
>> 294
>> 295 # Some NUMA nodes have memory ranges that span
>> 296 # other nodes. Even though a pfn is valid and
>> 297 # between a node's start and end pfns, it may not
>> 298 # reside on that node. See memmap_init_zone()
>> 299 # for details.
>> 300 config NODES_SPAN_OTHER_NODES
172 def_bool y 301 def_bool y
>> 302 depends on NEED_MULTIPLE_NODES
173 303
174 config CPU_ASID_BITS !! 304 config ARCH_SPARSEMEM_ENABLE
175 int !! 305 def_bool y if SPARC64
176 default "8" if (CPU_CK610 || CPU_C !! 306 select SPARSEMEM_VMEMMAP_ENABLE
177 default "12" if (CPU_CK860) !! 307
178 !! 308 config ARCH_SPARSEMEM_DEFAULT
179 config L1_CACHE_SHIFT !! 309 def_bool y if SPARC64
180 int !! 310
181 default "4" if (CPU_CK610) !! 311 config FORCE_MAX_ZONEORDER
182 default "5" if (CPU_CK807 || CPU_C !! 312 int "Maximum zone order"
183 default "6" if (CPU_CK860) !! 313 default "13"
184 !! 314 help
185 config ARCH_MMAP_RND_BITS_MIN !! 315 The kernel memory allocator divides physically contiguous memory
186 default 8 !! 316 blocks into "zones", where each zone is a power of two number of
187 !! 317 pages. This option selects the largest power of two that the kernel
188 # max bits determined by the following formula !! 318 keeps in the memory allocator. If you need to allocate very large
189 # VA_BITS - PAGE_SHIFT - 3 !! 319 blocks of physically contiguous memory, then you may need to
190 config ARCH_MMAP_RND_BITS_MAX !! 320 increase this value.
191 default 17 <<
192 321
193 menu "Processor type and features" !! 322 This config option is actually maximum order plus one. For example,
>> 323 a value of 13 means that the largest free memory block is 2^12 pages.
194 324
195 choice !! 325 if SPARC64 || COMPILE_TEST
196 prompt "CPU MODEL" !! 326 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 327 endif
301 328
302 config CPU_HAS_VDSP !! 329 config SCHED_SMT
303 bool "CPU has VDSP coprocessor" !! 330 bool "SMT (Hyperthreading) scheduler support"
304 depends on CPU_HAS_FPU && CPU_HAS_FPUV !! 331 depends on SPARC64 && SMP
305 !! 332 default y
306 config CPU_HAS_FPU !! 333 help
307 bool "CPU has FPU coprocessor" !! 334 SMT scheduler support improves the CPU scheduler's decision making
308 depends on CPU_CK807 || CPU_CK810 || C !! 335 when dealing with SPARC cpus at a cost of slightly increased overhead
309 !! 336 in some places. If unsure say N here.
310 config CPU_HAS_ICACHE_INS !! 337
311 bool "CPU has Icache invalidate instru !! 338 config SCHED_MC
312 depends on CPU_HAS_CACHEV2 !! 339 bool "Multi-core scheduler support"
313 !! 340 depends on SPARC64 && SMP
314 config CPU_HAS_TEE !! 341 default y
315 bool "CPU has Trusted Execution Enviro !! 342 help
316 depends on CPU_CK810 !! 343 Multi-core scheduler support improves the CPU scheduler's decision
>> 344 making when dealing with multi-core CPU chips at a cost of slightly
>> 345 increased overhead in some places. If unsure say N here.
>> 346
>> 347 config CMDLINE_BOOL
>> 348 bool "Default bootloader kernel arguments"
>> 349 depends on SPARC64
>> 350
>> 351 config CMDLINE
>> 352 string "Initial kernel command string"
>> 353 depends on CMDLINE_BOOL
>> 354 default "console=ttyS0,9600 root=/dev/sda1"
>> 355 help
>> 356 Say Y here if you want to be able to pass default arguments to
>> 357 the kernel. This will be overridden by the bootloader, if you
>> 358 use one (such as SILO). This is most useful if you want to boot
>> 359 a kernel from TFTP, and want default options to be available
>> 360 with having them passed on the command line.
317 361
318 config SMP !! 362 NOTE: This option WILL override the PROM bootargs setting!
319 bool "Symmetric Multi-Processing (SMP) <<
320 depends on CPU_CK860 <<
321 default n <<
322 363
323 config NR_CPUS !! 364 config SUN_PM
324 int "Maximum number of CPUs (2-32)" !! 365 bool
325 range 2 32 !! 366 default y if SPARC32
326 depends on SMP !! 367 help
327 default "4" !! 368 Enable power management and CPU standby features on supported
>> 369 SPARC platforms.
328 370
329 config HIGHMEM !! 371 config SPARC_LED
330 bool "High Memory Support" !! 372 tristate "Sun4m LED driver"
331 depends on !CPU_CK610 !! 373 depends on SPARC32
332 select KMAP_LOCAL !! 374 help
>> 375 This driver toggles the front-panel LED on sun4m systems
>> 376 in a user-specifiable manner. Its state can be probed
>> 377 by reading /proc/led and its blinking mode can be changed
>> 378 via writes to /proc/led
>> 379
>> 380 config SERIAL_CONSOLE
>> 381 bool
>> 382 depends on SPARC32
333 default y 383 default y
>> 384 ---help---
>> 385 If you say Y here, it will be possible to use a serial port as the
>> 386 system console (the system console is the device which receives all
>> 387 kernel messages and warnings and which allows logins in single user
>> 388 mode). This could be useful if some terminal or printer is connected
>> 389 to that serial port.
>> 390
>> 391 Even if you say Y here, the currently visible virtual console
>> 392 (/dev/tty0) will still be used as the system console by default, but
>> 393 you can alter that using a kernel command line option such as
>> 394 "console=ttyS1". (Try "man bootparam" or see the documentation of
>> 395 your boot loader (silo) about how to pass options to the kernel at
>> 396 boot time.)
>> 397
>> 398 If you don't have a graphics card installed and you say Y here, the
>> 399 kernel will automatically use the first serial line, /dev/ttyS0, as
>> 400 system console.
>> 401
>> 402 If unsure, say N.
>> 403
>> 404 config SPARC_LEON
>> 405 bool "Sparc Leon processor family"
>> 406 depends on SPARC32
>> 407 select USB_EHCI_BIG_ENDIAN_MMIO
>> 408 select USB_EHCI_BIG_ENDIAN_DESC
>> 409 select USB_UHCI_BIG_ENDIAN_MMIO
>> 410 select USB_UHCI_BIG_ENDIAN_DESC
>> 411 ---help---
>> 412 If you say Y here if you are running on a SPARC-LEON processor.
>> 413 The LEON processor is a synthesizable VHDL model of the
>> 414 SPARC-v8 standard. LEON is part of the GRLIB collection of
>> 415 IP cores that are distributed under GPL. GRLIB can be downloaded
>> 416 from www.gaisler.com. You can download a sparc-linux cross-compilation
>> 417 toolchain at www.gaisler.com.
>> 418
>> 419 if SPARC_LEON
>> 420 menu "U-Boot options"
>> 421
>> 422 config UBOOT_LOAD_ADDR
>> 423 hex "uImage Load Address"
>> 424 default 0x40004000
>> 425 ---help---
>> 426 U-Boot kernel load address, the address in physical address space
>> 427 where u-boot will place the Linux kernel before booting it.
>> 428 This address is normally the base address of main memory + 0x4000.
>> 429
>> 430 config UBOOT_FLASH_ADDR
>> 431 hex "uImage.o Load Address"
>> 432 default 0x00080000
>> 433 ---help---
>> 434 Optional setting only affecting the uImage.o ELF-image used to
>> 435 download the uImage file to the target using a ELF-loader other than
>> 436 U-Boot. It may for example be used to download an uImage to FLASH with
>> 437 the GRMON utility before even starting u-boot.
>> 438
>> 439 config UBOOT_ENTRY_ADDR
>> 440 hex "uImage Entry Address"
>> 441 default 0xf0004000
>> 442 ---help---
>> 443 Do not change this unless you know what you're doing. This is
>> 444 hardcoded by the SPARC32 and LEON port.
334 445
335 config DRAM_BASE !! 446 This is the virtual address u-boot jumps to when booting the Linux
336 hex "DRAM start addr (the same with me !! 447 Kernel.
337 default 0x0 <<
338 448
339 config HOTPLUG_CPU !! 449 endmenu
340 bool "Support for hot-pluggable CPUs" !! 450 endif
341 select GENERIC_IRQ_MIGRATION !! 451
342 depends on SMP !! 452 endmenu
>> 453
>> 454 menu "Bus options (PCI etc.)"
>> 455 config SBUS
>> 456 bool
>> 457 default y
>> 458
>> 459 config SBUSCHAR
>> 460 bool
>> 461 default y
>> 462
>> 463 config SUN_LDOMS
>> 464 bool "Sun Logical Domains support"
>> 465 depends on SPARC64
343 help 466 help
344 Say Y here to allow turning CPUs off !! 467 Say Y here is you want to support virtual devices via
345 controlled through /sys/devices/syst !! 468 Logical Domains.
346 469
347 Say N if you want to disable CPU hot !! 470 config PCIC_PCI
>> 471 bool
>> 472 depends on PCI && SPARC32 && !SPARC_LEON
>> 473 default y
>> 474
>> 475 config LEON_PCI
>> 476 bool
>> 477 depends on PCI && SPARC_LEON
>> 478 default y
348 479
349 config HAVE_EFFICIENT_UNALIGNED_STRING_OPS !! 480 config SPARC_GRPCI1
350 bool "Enable EFFICIENT_UNALIGNED_STRIN !! 481 bool "GRPCI Host Bridge Support"
351 depends on CPU_CK807 || CPU_CK810 || C !! 482 depends on LEON_PCI
>> 483 default y
352 help 484 help
353 Say Y here to enable EFFICIENT_UNALI !! 485 Say Y here to include the GRPCI Host Bridge Driver. The GRPCI
354 deal with unaligned access by hardwa !! 486 PCI host controller is typically found in GRLIB SPARC32/LEON
>> 487 systems. The driver has one property (all_pci_errors) controlled
>> 488 from the bootloader that makes the GRPCI to generate interrupts
>> 489 on detected PCI Parity and System errors.
>> 490
>> 491 config SPARC_GRPCI2
>> 492 bool "GRPCI2 Host Bridge Support"
>> 493 depends on LEON_PCI
>> 494 default y
>> 495 help
>> 496 Say Y here to include the GRPCI2 Host Bridge Driver.
>> 497
>> 498 config SUN_OPENPROMFS
>> 499 tristate "Openprom tree appears in /proc/openprom"
>> 500 help
>> 501 If you say Y, the OpenPROM device tree will be available as a
>> 502 virtual file system, which you can mount to /proc/openprom by "mount
>> 503 -t openpromfs none /proc/openprom".
>> 504
>> 505 To compile the /proc/openprom support as a module, choose M here: the
>> 506 module will be called openpromfs.
>> 507
>> 508 Only choose N if you know in advance that you will not need to modify
>> 509 OpenPROM settings on the running system.
>> 510
>> 511 # Makefile helpers
>> 512 config SPARC64_PCI
>> 513 bool
>> 514 default y
>> 515 depends on SPARC64 && PCI
>> 516
>> 517 config SPARC64_PCI_MSI
>> 518 bool
>> 519 default y
>> 520 depends on SPARC64_PCI && PCI_MSI
355 521
356 endmenu 522 endmenu
357 523
358 source "arch/csky/Kconfig.platforms" !! 524 config COMPAT
>> 525 bool
>> 526 depends on SPARC64
>> 527 default y
>> 528 select COMPAT_BINFMT_ELF if BINFMT_ELF
>> 529 select HAVE_UID16
>> 530 select ARCH_WANT_OLD_COMPAT_IPC
>> 531 select COMPAT_OLD_SIGACTION
>> 532
>> 533 config SYSVIPC_COMPAT
>> 534 bool
>> 535 depends on COMPAT && SYSVIPC
>> 536 default y
359 537
360 source "kernel/Kconfig.hz" !! 538 source "drivers/sbus/char/Kconfig"
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