diff options
Diffstat (limited to 'arch/x86/Kconfig.debug')
-rw-r--r-- | arch/x86/Kconfig.debug | 24 |
1 files changed, 2 insertions, 22 deletions
diff --git a/arch/x86/Kconfig.debug b/arch/x86/Kconfig.debug index 10d6cc3fd052..e1983fa025d2 100644 --- a/arch/x86/Kconfig.debug +++ b/arch/x86/Kconfig.debug | |||
@@ -174,28 +174,8 @@ config IOMMU_LEAK | |||
174 | Add a simple leak tracer to the IOMMU code. This is useful when you | 174 | Add a simple leak tracer to the IOMMU code. This is useful when you |
175 | are debugging a buggy device driver that leaks IOMMU mappings. | 175 | are debugging a buggy device driver that leaks IOMMU mappings. |
176 | 176 | ||
177 | config MMIOTRACE | 177 | config HAVE_MMIOTRACE_SUPPORT |
178 | bool "Memory mapped IO tracing" | 178 | def_bool y |
179 | depends on DEBUG_KERNEL && PCI | ||
180 | select TRACING | ||
181 | help | ||
182 | Mmiotrace traces Memory Mapped I/O access and is meant for | ||
183 | debugging and reverse engineering. It is called from the ioremap | ||
184 | implementation and works via page faults. Tracing is disabled by | ||
185 | default and can be enabled at run-time. | ||
186 | |||
187 | See Documentation/tracers/mmiotrace.txt. | ||
188 | If you are not helping to develop drivers, say N. | ||
189 | |||
190 | config MMIOTRACE_TEST | ||
191 | tristate "Test module for mmiotrace" | ||
192 | depends on MMIOTRACE && m | ||
193 | help | ||
194 | This is a dumb module for testing mmiotrace. It is very dangerous | ||
195 | as it will write garbage to IO memory starting at a given address. | ||
196 | However, it should be safe to use on e.g. unused portion of VRAM. | ||
197 | |||
198 | Say N, unless you absolutely know what you are doing. | ||
199 | 179 | ||
200 | # | 180 | # |
201 | # IO delay types: | 181 | # IO delay types: |