ARM64 DT memory attributes

Macros
#define	DT_MEM_ARM64_MASK   DT_MEM_ARCH_ATTR_MASK
	Mask for ARM64 architecture-specific memory attribute bits.
#define	DT_MEM_ARM64_GET(x)
	Extract ARM64-specific bits from a DT memory attribute value.
#define	DT_MEM_ARM64(x)
	Shift a raw ARM64 attribute into the architecture field.
#define	ATTR_ARM64_CACHE_WB   BIT(1)
	Write-Back cache policy (only meaningful with DT_MEM_CACHEABLE).
#define	DT_MEM_ARM64_MMU_NORMAL_NC   (0)
	Normal non-cacheable memory.
#define	DT_MEM_ARM64_MMU_NORMAL_WT   (DT_MEM_CACHEABLE)
	Normal write-through cacheable memory.
#define	DT_MEM_ARM64_MMU_NORMAL
	Normal write-back cacheable memory.
#define	DT_MEM_ARM64_MMU_UNKNOWN   DT_MEM_ARCH_ATTR_UNKNOWN
	DT value for unknown or unsupported memory type.

Detailed Description

Macro Definition Documentation

ATTR_ARM64_CACHE_WB

#define ATTR_ARM64_CACHE_WB   BIT(1)

#include <zephyr/dt-bindings/memory-attr/memory-attr-arm64.h>

Write-Back cache policy (only meaningful with DT_MEM_CACHEABLE).

DT_MEM_ARM64

#define DT_MEM_ARM64

(

x

)

#include <zephyr/dt-bindings/memory-attr/memory-attr-arm64.h>

Value:

((x) << DT_MEM_ARCH_ATTR_SHIFT)

Shift a raw ARM64 attribute into the architecture field.

Parameters

x	Raw ARM64 attribute value.

DT_MEM_ARM64_GET

#define DT_MEM_ARM64_GET

(

x

)

#include <zephyr/dt-bindings/memory-attr/memory-attr-arm64.h>

Value:

((x) & DT_MEM_ARM64_MASK)

Extract ARM64-specific bits from a DT memory attribute value.

Parameters

x	Full DT memory attribute bitmask.

DT_MEM_ARM64_MASK

#define DT_MEM_ARM64_MASK   DT_MEM_ARCH_ATTR_MASK

#include <zephyr/dt-bindings/memory-attr/memory-attr-arm64.h>

Mask for ARM64 architecture-specific memory attribute bits.

DT_MEM_ARM64_MMU_NORMAL

#define DT_MEM_ARM64_MMU_NORMAL

#include <zephyr/dt-bindings/memory-attr/memory-attr-arm64.h>

Value:

(DT_MEM_CACHEABLE | \
DT_MEM_ARM64(ATTR_ARM64_CACHE_WB))

Normal write-back cacheable memory.

DT_MEM_ARM64_MMU_NORMAL_NC

#define DT_MEM_ARM64_MMU_NORMAL_NC   (0)

#include <zephyr/dt-bindings/memory-attr/memory-attr-arm64.h>

Normal non-cacheable memory.

DT_MEM_ARM64_MMU_NORMAL_WT

#define DT_MEM_ARM64_MMU_NORMAL_WT   (DT_MEM_CACHEABLE)

#include <zephyr/dt-bindings/memory-attr/memory-attr-arm64.h>

Normal write-through cacheable memory.

DT_MEM_ARM64_MMU_UNKNOWN

#define DT_MEM_ARM64_MMU_UNKNOWN   DT_MEM_ARCH_ATTR_UNKNOWN

#include <zephyr/dt-bindings/memory-attr/memory-attr-arm64.h>

DT value for unknown or unsupported memory type.