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| author | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-02-18 13:19:25 +1100 |
|---|---|---|
| committer | Benjamin Herrenschmidt <benh@kernel.crashing.org> | 2009-02-18 13:19:25 +1100 |
| commit | 82a0a1cc8f94bc59e5919715bc03fc8353fa770d (patch) | |
| tree | c25f19a0ae1f7cb75319b585c1d473cfed463f22 /kernel/trace/Kconfig | |
| parent | 8d30c14cab30d405a05f2aaceda1e9ad57800f36 (diff) | |
| parent | 5955c7a2cfb6a35429adea5dc480002b15ca8cfc (diff) | |
| download | op-kernel-dev-82a0a1cc8f94bc59e5919715bc03fc8353fa770d.zip op-kernel-dev-82a0a1cc8f94bc59e5919715bc03fc8353fa770d.tar.gz | |
Merge commit 'origin/master' into next
Manual merge of:
arch/powerpc/include/asm/pgtable-ppc32.h
Diffstat (limited to 'kernel/trace/Kconfig')
| -rw-r--r-- | kernel/trace/Kconfig | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig index e2a4ff6..58a93fbd 100644 --- a/kernel/trace/Kconfig +++ b/kernel/trace/Kconfig @@ -302,4 +302,27 @@ config FTRACE_STARTUP_TEST functioning properly. It will do tests on all the configured tracers of ftrace. +config MMIOTRACE + bool "Memory mapped IO tracing" + depends on HAVE_MMIOTRACE_SUPPORT && DEBUG_KERNEL && PCI + select TRACING + 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. + endmenu |
