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author | Ingo Molnar <mingo@elte.hu> | 2008-07-14 16:11:52 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-07-14 16:11:52 +0200 |
commit | 5806b81ac1c0c52665b91723fd4146a4f86e386b (patch) | |
tree | 24ea8763bf308ce1407c1de91dc8de4d2655e1c1 /arch/x86/Kconfig.debug | |
parent | d14c8a680ccfdeb5e7b9be4d61162c2b373bd1e8 (diff) | |
parent | 6712e299b7dc78aa4971b85e803435ee6d49a9dd (diff) | |
download | linux-5806b81ac1c0c52665b91723fd4146a4f86e386b.tar.bz2 |
Merge branch 'auto-ftrace-next' into tracing/for-linus
Conflicts:
arch/x86/kernel/entry_32.S
arch/x86/kernel/process_32.c
arch/x86/kernel/process_64.c
arch/x86/lib/Makefile
include/asm-x86/irqflags.h
kernel/Makefile
kernel/sched.c
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/Kconfig.debug')
-rw-r--r-- | arch/x86/Kconfig.debug | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug index acc0271920f2..5236621350bc 100644 --- a/arch/x86/Kconfig.debug +++ b/arch/x86/Kconfig.debug @@ -171,6 +171,34 @@ config IOMMU_LEAK Add a simple leak tracer to the IOMMU code. This is useful when you are debugging a buggy device driver that leaks IOMMU mappings. +config MMIOTRACE_HOOKS + bool + +config MMIOTRACE + bool "Memory mapped IO tracing" + depends on DEBUG_KERNEL && PCI + select TRACING + select MMIOTRACE_HOOKS + default y + help + Mmiotrace traces Memory Mapped I/O access and is meant for + debugging and reverse engineering. It is called from the ioremap + implementation and works via page faults. Tracing is disabled by + default and can be enabled at run-time. + + See Documentation/tracers/mmiotrace.txt. + If you are not helping to develop drivers, say N. + +config MMIOTRACE_TEST + tristate "Test module for mmiotrace" + depends on MMIOTRACE && m + help + This is a dumb module for testing mmiotrace. It is very dangerous + as it will write garbage to IO memory starting at a given address. + However, it should be safe to use on e.g. unused portion of VRAM. + + Say N, unless you absolutely know what you are doing. + # # IO delay types: # |