CONFIG_CACHE_LINE_SIZE_DETECT

This option enables querying the CPUID register for finding the cache line size at the expense of taking more memory and code and a slightly increased boot time.

If the CPU’s cache line size is known in advance, disable this option and manually enter the value for CACHE_LINE_SIZE.

Symbol:

CACHE_LINE_SIZE_DETECT
Type:

bool
Value:

“y”
User value:

(no user value)
Visibility:

“y”
Is choice item:

false
Is defined:

true
Is from env.:

false
Is special:

false
Prompts:
  • “Detect cache line size at runtime”
Default values:
  • y (value: “y”)
  • Condition: (none)
Selects:

(no selects)
Reverse (select-related) dependencies:
 

(no reverse dependencies)
Additional dependencies from enclosing menus and ifs:
 

X86 (value: “y”)
Locations:
  • ../arch/x86/Kconfig:143