CCSIDR_DATA Union Reference

Defines the structure of the CCSIDR (Current Cache Size ID) register. More...

#include <ArmPkg/Include/IndustryStandard/ArmCache.h>

Data Fields
struct {
UINT64   LineSize: 3
	Line size (Log2(Num bytes in cache) - 4) More...
UINT64   Associativity: 10
	Associativity - 1. More...
UINT64   NumSets: 15
	Number of sets in the cache -1. More...
UINT64   Unknown: 4
	Reserved, UNKNOWN. More...
UINT64   Reserved: 32
	Reserved, RES0. More...
}	BitsNonCcidx
	Bitfield definition of the register when FEAT_CCIDX is not supported.
struct {
UINT64   LineSize: 3
	Line size (Log2(Num bytes in cache) - 4) More...
UINT64   Associativity: 21
	Associativity - 1. More...
UINT64   Reserved1: 8
	Reserved, RES0. More...
UINT64   NumSets: 24
	Number of sets in the cache -1. More...
UINT64   Reserved2: 8
	Reserved, RES0. More...
}	BitsCcidxAA64
	Bitfield definition of the register when FEAT_IDX is supported.
struct {
UINT64   LineSize: 3
UINT64   Associativity: 21
UINT64   Reserved: 8
UINT64   Unallocated: 32
}	BitsCcidxAA32
UINT64	Data
	The entire 64-bit value.

Detailed Description

Defines the structure of the CCSIDR (Current Cache Size ID) register.

Definition at line 39 of file ArmCache.h.

Field Documentation

Associativity

UINT64 CCSIDR_DATA::Associativity

Associativity - 1.

Definition at line 42 of file ArmCache.h.

Data

UINT64 CCSIDR_DATA::Data

The entire 64-bit value.

Definition at line 60 of file ArmCache.h.

LineSize

UINT64 CCSIDR_DATA::LineSize

Line size (Log2(Num bytes in cache) - 4)

Definition at line 41 of file ArmCache.h.

NumSets

UINT64 CCSIDR_DATA::NumSets

Number of sets in the cache -1.

Definition at line 43 of file ArmCache.h.

Reserved

UINT64 CCSIDR_DATA::Reserved

Reserved, RES0.

Definition at line 45 of file ArmCache.h.

Reserved1

UINT64 CCSIDR_DATA::Reserved1

Reserved, RES0.

Definition at line 50 of file ArmCache.h.

Reserved2

UINT64 CCSIDR_DATA::Reserved2

Reserved, RES0.

Definition at line 52 of file ArmCache.h.

Unallocated

UINT64 CCSIDR_DATA::Unallocated

Definition at line 58 of file ArmCache.h.

Unknown

UINT64 CCSIDR_DATA::Unknown

Reserved, UNKNOWN.

Definition at line 44 of file ArmCache.h.

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The documentation for this union was generated from the following file:

• ArmPkg/Include/IndustryStandard/ArmCache.h