CacheInfo (Windows Embedded CE 6.0)

1/6/2010

This structure contains the cache information used with the IOCTL_KLIB_GETCACHE_INFO I/O control.

Syntax

typedef struct _CacheInfo {
  DWORD dwL1Flags;
  DWORD dwL1ICacheSize;
  DWORD dwL1ICacheLineSize;
  DWORD dwL1ICacheNumWays;
  DWORD dwL1DCacheSize;
  DWORD dwL1DCacheLineSize;
  DWORD dwL1DCacheNumWays;
  DWORD dwL2Flags;
  DWORD dwL2ICacheSize;
  DWORD dwL2ICacheLineSize;
  DWORD dwL2ICacheNumWays;
  DWORD dwL2DCacheSize;
  DWORD dwL2DCacheLineSize;
  DWORD dwL2DCacheNumWays;
} CacheInfo, *PCacheInfo;

Members

• dwL1Flags
  Flags for the level 1 (L1) cache.

  The following table shows the valid flags for this member.

  Flag	Description
  CF_COHERENT	Specifies that no cache flush operations are necessary.
  CF_UNIFIED	Specifies that the instruction (I) and data (D) caches are unified.
  CF_WRITETHROUGH	Specifies that the cache is in write-through mode. If this flag is not set, the cache is in write-back mode.

• dwL1ICacheSize
  Total size of the L1 instruction cache, in bytes.

• dwL1ICacheLineSize
  Line size of the L1 instruction cache, in bytes.

• dwL1ICacheNumWays
  Specifies the number of ways. Set to 1 for direct-mapped.

• dwL1DCacheSize
  Total size of the L1 data cache, in bytes.

• dwL1DCacheLineSize
  Line size of the L1 data cache, in bytes.

• dwL1DCacheNumWays
  Specifies the different types of cache organization. Set to 1 for direct-mapped.

• dwL2Flags
  Flags for the level 2 (L2) cache.

  The following table shows the valid flags for this member.

  Flag	Description
  CF_COHERENT	Specifies that no cache flush operations are necessary.
  CF_UNIFIED	Specifies that the instruction (I) and data (D) caches are unified.
  CF_WRITETHROUGH	Specifies that the cache is in write-through mode. If this flag is not set, the cache is in write-back mode.

• dwL2ICacheSize
  Total size of the L2 instruction cache, in bytes. A size of 0 (zero) means that there is no L2 instruction cache.

• dwL2ICacheLineSize
  Line size of the L2 instruction cache, in bytes.

• dwL2ICacheNumWays
  Specifies the number of ways. Set to 1 for direct-mapped.

• dwL2DCacheSize
  Total size of the L2 data cache, in bytes. Zero indicates that there is no L2 data cache.

• dwL2DCacheLineSize
  Line size of the L2 data cache, in bytes.

• dwL2DCacheNumWays
  Specifies the different types of cache organization. Set to 1 for direct-mapped.

Requirements

See Also

Reference

Kernel Structures
CeGetCacheInfo