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 ba4781b93890..fdb45df608b6 100644 --- a/arch/x86/Kconfig.debug +++ b/arch/x86/Kconfig.debug | |||
@@ -175,28 +175,8 @@ config IOMMU_LEAK | |||
175 | Add a simple leak tracer to the IOMMU code. This is useful when you | 175 | Add a simple leak tracer to the IOMMU code. This is useful when you |
176 | are debugging a buggy device driver that leaks IOMMU mappings. | 176 | are debugging a buggy device driver that leaks IOMMU mappings. |
177 | 177 | ||
178 | config MMIOTRACE | 178 | config HAVE_MMIOTRACE_SUPPORT |
179 | bool "Memory mapped IO tracing" | 179 | def_bool y |
180 | depends on DEBUG_KERNEL && PCI | ||
181 | select TRACING | ||
182 | help | ||
183 | Mmiotrace traces Memory Mapped I/O access and is meant for | ||
184 | debugging and reverse engineering. It is called from the ioremap | ||
185 | implementation and works via page faults. Tracing is disabled by | ||
186 | default and can be enabled at run-time. | ||
187 | |||
188 | See Documentation/tracers/mmiotrace.txt. | ||
189 | If you are not helping to develop drivers, say N. | ||
190 | |||
191 | config MMIOTRACE_TEST | ||
192 | tristate "Test module for mmiotrace" | ||
193 | depends on MMIOTRACE && m | ||
194 | help | ||
195 | This is a dumb module for testing mmiotrace. It is very dangerous | ||
196 | as it will write garbage to IO memory starting at a given address. | ||
197 | However, it should be safe to use on e.g. unused portion of VRAM. | ||
198 | |||
199 | Say N, unless you absolutely know what you are doing. | ||
200 | 180 | ||
201 | # | 181 | # |
202 | # IO delay types: | 182 | # IO delay types: |