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2023-12-11 072de836f53be56a70cecf70b43ae43b7ce17376 
 kernel/arch/parisc/Kconfig
....@@ -1,6 +1,7 @@
11 # SPDX-License-Identifier: GPL-2.0
22 config PARISC
33 	def_bool y
4
+	select ARCH_32BIT_OFF_T if !64BIT
45 	select ARCH_MIGHT_HAVE_PC_PARPORT
56 	select HAVE_IDE
67 	select HAVE_OPROFILE
....@@ -10,15 +11,17 @@
1011 	select ARCH_WANT_FRAME_POINTERS
1112 	select ARCH_HAS_ELF_RANDOMIZE
1213 	select ARCH_HAS_STRICT_KERNEL_RWX
14
+	select ARCH_HAS_STRICT_MODULE_RWX
1315 	select ARCH_HAS_UBSAN_SANITIZE_ALL
16
+	select ARCH_NO_SG_CHAIN
1417 	select ARCH_SUPPORTS_MEMORY_FAILURE
18
+	select DMA_OPS
1519 	select RTC_CLASS
1620 	select RTC_DRV_GENERIC
1721 	select INIT_ALL_POSSIBLE
18
-	select HAVE_MEMBLOCK
19
-	select NO_BOOTMEM
2022 	select BUG
21
-	select BUILDTIME_EXTABLE_SORT
23
+	select BUILDTIME_TABLE_SORT
24
+	select HAVE_PCI
2225 	select HAVE_PERF_EVENTS
2326 	select HAVE_KERNEL_BZIP2
2427 	select HAVE_KERNEL_GZIP
....@@ -35,7 +38,6 @@
3538 	select GENERIC_STRNCPY_FROM_USER
3639 	select SYSCTL_ARCH_UNALIGN_ALLOW
3740 	select SYSCTL_EXCEPTION_TRACE
38
-	select ARCH_DISCARD_MEMBLOCK
3941 	select HAVE_MOD_ARCH_SPECIFIC
4042 	select VIRT_TO_BUS
4143 	select MODULES_USE_ELF_RELA
....@@ -44,22 +46,32 @@
4446 	select HAVE_DEBUG_STACKOVERFLOW
4547 	select HAVE_ARCH_AUDITSYSCALL
4648 	select HAVE_ARCH_HASH
49
+	select HAVE_ARCH_JUMP_LABEL
50
+	select HAVE_ARCH_JUMP_LABEL_RELATIVE
4751 	select HAVE_ARCH_SECCOMP_FILTER
4852 	select HAVE_ARCH_TRACEHOOK
4953 	select HAVE_REGS_AND_STACK_ACCESS_API
5054 	select GENERIC_SCHED_CLOCK
5155 	select HAVE_UNSTABLE_SCHED_CLOCK if SMP
5256 	select GENERIC_CLOCKEVENTS
53
-	select ARCH_NO_COHERENT_DMA_MMAP
5457 	select CPU_NO_EFFICIENT_FFS
5558 	select NEED_DMA_MAP_STATE
5659 	select NEED_SG_DMA_LENGTH
60
+	select HAVE_ARCH_KGDB
61
+	select HAVE_KPROBES
62
+	select HAVE_KRETPROBES
63
+	select HAVE_DYNAMIC_FTRACE if $(cc-option,-fpatchable-function-entry=1,1)
64
+	select HAVE_FTRACE_MCOUNT_RECORD if HAVE_DYNAMIC_FTRACE
65
+	select FTRACE_MCOUNT_USE_PATCHABLE_FUNCTION_ENTRY if DYNAMIC_FTRACE
66
+	select HAVE_KPROBES_ON_FTRACE
67
+	select HAVE_DYNAMIC_FTRACE_WITH_REGS
68
+	select SET_FS
5769 
5870 	help
5971 	  The PA-RISC microprocessor is designed by Hewlett-Packard and used
6072 	  in many of their workstations & servers (HP9000 700 and 800 series,
6173 	  and later HP3000 series).  The PA-RISC Linux project home page is
62
-	  at <http://www.parisc-linux.org/>.
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+	  at <https://parisc.wiki.kernel.org>.
6375 
6476 config CPU_BIG_ENDIAN
6577 	def_bool y
....@@ -70,16 +82,15 @@
7082 config STACK_GROWSUP
7183 	def_bool y
7284 
85
+config ARCH_DEFCONFIG
86
+	string
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+	default "arch/parisc/configs/generic-32bit_defconfig" if !64BIT
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+	default "arch/parisc/configs/generic-64bit_defconfig" if 64BIT
89
+
7390 config GENERIC_LOCKBREAK
7491 	bool
7592 	default y
76
-	depends on SMP && PREEMPT
77
-
78
-config RWSEM_GENERIC_SPINLOCK
79
-	def_bool y
80
-
81
-config RWSEM_XCHGADD_ALGORITHM
82
-	bool
93
+	depends on SMP && PREEMPTION
8394 
8495 config ARCH_HAS_ILOG2_U32
8596 	bool
....@@ -139,7 +150,7 @@
139150 
140151 config PA7000
141152 	bool "PA7000/PA7100"
142
-	---help---
153
+	help
143154 	  This is the processor type of your CPU.  This information is
144155 	  used for optimizing purposes.  In order to compile a kernel
145156 	  that can run on all 32-bit PA CPUs (albeit not optimally fast),
....@@ -187,16 +198,17 @@
187198 	depends on PA7000 || PA7100LC || PA7200 || PA7300LC
188199 	select ARCH_HAS_SYNC_DMA_FOR_CPU
189200 	select ARCH_HAS_SYNC_DMA_FOR_DEVICE
190
-	select DMA_NONCOHERENT_OPS
191
-	select DMA_NONCOHERENT_CACHE_SYNC
192201 
193202 config PREFETCH
194203 	def_bool y
195204 	depends on PA8X00 || PA7200
196205 
206
+config PARISC_HUGE_KERNEL
207
+	def_bool y if !MODULES || UBSAN || FTRACE || COMPILE_TEST
208
+
197209 config MLONGCALLS
198
-	bool "Enable the -mlong-calls compiler option for big kernels"
199
-	default y
210
+	def_bool y if PARISC_HUGE_KERNEL
211
+	bool "Enable the -mlong-calls compiler option for big kernels" if !PARISC_HUGE_KERNEL
200212 	depends on PA8X00
201213 	help
202214 	  If you configure the kernel to include many drivers built-in instead
....@@ -267,7 +279,7 @@
267279 
268280 config SMP
269281 	bool "Symmetric multi-processing support"
270
-	---help---
282
+	help
271283 	  This enables support for systems with more than one CPU. If you have
272284 	  a system with only one CPU, say N. If you have a system with more
273285 	  than one CPU, say Y.
....@@ -276,8 +288,8 @@
276288 	  machines, but will use only one CPU of a multiprocessor machine.
277289 	  On a uniprocessor machine, the kernel will run faster if you say N.
278290 
279
-	  See also <file:Documentation/lockup-watchdogs.txt> and the SMP-HOWTO
280
-	  available at <http://www.tldp.org/docs.html#howto>.
291
+	  See also <file:Documentation/admin-guide/lockup-watchdogs.rst> and the SMP-HOWTO
292
+	  available at <https://www.tldp.org/docs.html#howto>.
281293 
282294 	  If you don't know what to do here, say N.
283295 
....@@ -303,6 +315,16 @@
303315 	  If you say Y here the kernel will use separate kernel stacks
304316 	  for handling hard and soft interrupts.  This can help avoid
305317 	  overflowing the process kernel stacks.
318
+
319
+config TLB_PTLOCK
320
+	bool "Use page table locks in TLB fault handler"
321
+	depends on SMP
322
+	default n
323
+	help
324
+	  Select this option to enable page table locking in the TLB
325
+	  fault handler. This ensures that page table entries are
326
+	  updated consistently on SMP machines at the expense of some
327
+	  loss in performance.
306328 
307329 config HOTPLUG_CPU
308330 	bool
....@@ -343,23 +365,31 @@
343365 	depends on SMP
344366 	default "4"
345367 
368
+config KEXEC
369
+	bool "Kexec system call"
370
+	select KEXEC_CORE
371
+	help
372
+	  kexec is a system call that implements the ability to shutdown your
373
+	  current kernel, and to start another kernel.  It is like a reboot
374
+	  but it is independent of the system firmware.   And like a reboot
375
+	  you can start any kernel with it, not just Linux.
376
+
377
+	  It is an ongoing process to be certain the hardware in a machine
378
+	  shutdown, so do not be surprised if this code does not
379
+	  initially work for you.
380
+
381
+config KEXEC_FILE
382
+	bool "kexec file based system call"
383
+	select KEXEC_CORE
384
+	select KEXEC_ELF
385
+	help
386
+	  This enables the kexec_file_load() System call. This is
387
+	  file based and takes file descriptors as system call argument
388
+	  for kernel and initramfs as opposed to list of segments as
389
+	  accepted by previous system call.
390
+
346391 endmenu
347392 
393
+source "drivers/firmware/Kconfig"
348394 
349395 source "drivers/parisc/Kconfig"
350
-
351
-config SECCOMP
352
-	def_bool y
353
-	prompt "Enable seccomp to safely compute untrusted bytecode"
354
-	---help---
355
-	  This kernel feature is useful for number crunching applications
356
-	  that may need to compute untrusted bytecode during their
357
-	  execution. By using pipes or other transports made available to
358
-	  the process as file descriptors supporting the read/write
359
-	  syscalls, it's possible to isolate those applications in
360
-	  their own address space using seccomp. Once seccomp is
361
-	  enabled via prctl(PR_SET_SECCOMP), it cannot be disabled
362
-	  and the task is only allowed to execute a few safe syscalls
363
-	  defined by each seccomp mode.
364
-
365
-	  If unsure, say Y. Only embedded should say N here.