Architecture-specific memory attributes

Architecture-specific memory attributes. More...

Topics
	ARM MPU memory attributes
	ARM64 memory attributes
	RISC-V memory attributes
	Xtensa memory attributes

Macros
#define	DT_MEM_ARCH_ATTR_MASK   GENMASK(31, 20)
	Mask for architecture-specific memory attribute bits.
#define	DT_MEM_ARCH_ATTR_GET(x)
	Extract architecture-specific memory attribute bits from a full zephyr,memory-attr value.
#define	DT_MEM_ARCH_ATTR_SHIFT   (20)
	Shift for architecture-specific memory attribute bits.
#define	DT_MEM_ARCH_ATTR_UNKNOWN   BIT(31)
	Architecture-specific memory attributes are unknown.

Detailed Description

Architecture-specific memory attributes.

They must reside in the section of the zephyr,memory-attr value corresponding to DT_MEM_ARCH_ATTR_MASK.

Macro Definition Documentation

DT_MEM_ARCH_ATTR_GET

#define DT_MEM_ARCH_ATTR_GET

(

x

)

#include <memory-attr.h>

Value:

((x) & DT_MEM_ARCH_ATTR_MASK)

Extract architecture-specific memory attribute bits from a full zephyr,memory-attr value.

Parameters

x	Value to extract architecture-specific memory attribute bits from.

Returns

Architecture-specific memory attribute bits.

DT_MEM_ARCH_ATTR_MASK

#define DT_MEM_ARCH_ATTR_MASK   GENMASK(31, 20)

#include <memory-attr.h>

Mask for architecture-specific memory attribute bits.

DT_MEM_ARCH_ATTR_SHIFT

#define DT_MEM_ARCH_ATTR_SHIFT   (20)

#include <memory-attr.h>

Shift for architecture-specific memory attribute bits.

DT_MEM_ARCH_ATTR_UNKNOWN

#define DT_MEM_ARCH_ATTR_UNKNOWN   BIT(31)

#include <memory-attr.h>

Architecture-specific memory attributes are unknown.