1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 # !! 2
3 config LIGHTWEIGHT_SPINLOCK_CHECK !! 3 config DEBUG_DCFLUSH
4 bool "Enable lightweight spinlock chec !! 4 bool "D-cache flush debugging"
5 depends on DEBUG_KERNEL && SMP && !DEB !! 5 depends on SPARC64 && DEBUG_KERNEL
>> 6
>> 7 config MCOUNT
>> 8 bool
>> 9 depends on SPARC64
>> 10 depends on FUNCTION_TRACER
>> 11 select ARCH_WANT_FRAME_POINTERS
>> 12 select FRAME_POINTER
6 default y 13 default y
7 help <<
8 Add checks with low performance impa <<
9 to catch memory overwrites at runtim <<
10 spinlock debugging you should choose <<
11 which will detect unitialized spinlo <<
12 If unsure say Y here. <<
13 14
14 config TLB_PTLOCK !! 15 config HAVE_HARDLOCKUP_DETECTOR_SPARC64
15 bool "Use page table locks in TLB faul !! 16 bool
16 depends on DEBUG_KERNEL && SMP !! 17 depends on HAVE_NMI
17 default n !! 18 select HARDLOCKUP_DETECTOR_SPARC64
18 help 19 help
19 Select this option to enable page ta !! 20 Sparc64 hardlockup detector is the last one developed before adding
20 fault handler. This ensures that pag !! 21 the common infrastructure for handling hardlockup detectors. It is
21 updated consistently on SMP machines !! 22 always built. It does _not_ use the common command line parameters
22 loss in performance. !! 23 and sysctl interface, except for /proc/sys/kernel/nmi_watchdog.
23 24
>> 25 config HARDLOCKUP_DETECTOR_SPARC64
>> 26 bool
>> 27 depends on HAVE_HARDLOCKUP_DETECTOR_SPARC64
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