select HAVE_IOREMAP_PROT
select HAVE_KPROBES
select ARCH_WANT_OPTIONAL_GPIOLIB
+ select ARCH_WANT_FRAME_POINTERS
select HAVE_KRETPROBES
select HAVE_FTRACE_MCOUNT_RECORD
select HAVE_DYNAMIC_FTRACE
your BIOS for an option to enable it or if you have an IVRS ACPI
table.
+config AMD_IOMMU_STATS
+ bool "Export AMD IOMMU statistics to debugfs"
+ depends on AMD_IOMMU
+ select DEBUG_FS
+ help
+ This option enables code in the AMD IOMMU driver to collect various
+ statistics about whats happening in the driver and exports that
+ information to userspace via debugfs.
+ If unsure, say N.
+
# need this always selected by IOMMU for the VIA workaround
config SWIOTLB
def_bool y if X86_64
config IOMMU_HELPER
def_bool (CALGARY_IOMMU || GART_IOMMU || SWIOTLB || AMD_IOMMU)
+config IOMMU_API
+ def_bool (AMD_IOMMU || DMAR)
+
config MAXSMP
bool "Configure Maximum number of SMP Processors and NUMA Nodes"
- depends on X86_64 && SMP && BROKEN
+ depends on X86_64 && SMP && DEBUG_KERNEL && EXPERIMENTAL
+ select CPUMASK_OFFSTACK
default n
help
Configure maximum number of CPUS and NUMA Nodes for this architecture.
If unsure, say N.
config NR_CPUS
- int "Maximum number of CPUs (2-512)" if !MAXSMP
- range 2 512
- depends on SMP
+ int "Maximum number of CPUs" if SMP && !MAXSMP
+ range 2 512 if SMP && !MAXSMP
+ default "1" if !SMP
default "4096" if MAXSMP
- default "32" if X86_NUMAQ || X86_SUMMIT || X86_BIGSMP || X86_ES7000
- default "8"
+ default "32" if SMP && (X86_NUMAQ || X86_SUMMIT || X86_BIGSMP || X86_ES7000)
+ default "8" if SMP
help
This allows you to specify the maximum number of CPUs which this
kernel will support. The maximum supported value is 512 and the