:orphan:

.. title:: CACHE_LINE_SIZE

.. option:: CONFIG_CACHE_LINE_SIZE

*Cache line size*

*Cache line size*

Type: ``int``

Help
====

Size in bytes of a CPU d-cache line.

Detect automatically at runtime by selecting CACHE_LINE_SIZE_DETECT.

Help
====

Size in bytes of a CPU cache line.

Detect automatically at runtime by selecting CACHE_LINE_SIZE_DETECT.

Direct dependencies
===================

\ :option:`ARC <CONFIG_ARC>` || (!\ :option:`X86_64 <CONFIG_X86_64>` && \ :option:`X86 <CONFIG_X86>`)

*(Includes any dependencies from ifs and menus.)*

Defaults
========

- 32
- 64 if \ :option:`CPU_ATOM <CONFIG_CPU_ATOM>`
- 0

Kconfig definitions
===================

.. highlight:: kconfig

At ``arch/arc/Kconfig:294``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:34`` → ``arch/Kconfig:12``

Menu path: (Top) → ARC Options → ARCv2 Family Options

.. parsed-literal::

    config CACHE_LINE_SIZE
    	int "Cache line size" if !\ :option:`CACHE_LINE_SIZE_DETECT <CONFIG_CACHE_LINE_SIZE_DETECT>`
    	default 32
    	depends on \ :option:`ARC <CONFIG_ARC>`
    	help
    	  Size in bytes of a CPU d-cache line.
	  
    	  Detect automatically at runtime by selecting CACHE_LINE_SIZE_DETECT.

----

At ``arch/x86/core/Kconfig.ia32:144``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:34`` → ``arch/Kconfig:12`` → ``arch/x86/Kconfig:279``

Menu path: (Top) → X86 Architecture Options → Processor Capabilities

.. parsed-literal::

    config CACHE_LINE_SIZE
    	int "Cache line size" if !\ :option:`CACHE_LINE_SIZE_DETECT <CONFIG_CACHE_LINE_SIZE_DETECT>`
    	default 64 if \ :option:`CPU_ATOM <CONFIG_CPU_ATOM>`
    	default 0
    	depends on !\ :option:`X86_64 <CONFIG_X86_64>` && \ :option:`X86 <CONFIG_X86>`
    	help
    	  Size in bytes of a CPU cache line.
	  
    	  Detect automatically at runtime by selecting CACHE_LINE_SIZE_DETECT.

*(The 'depends on' condition includes propagated dependencies from ifs and menus.)*