/** @file

  Copyright (c) 2008-2009 Apple Inc. All rights reserved.<BR>

  All rights reserved. This program and the accompanying materials
  are licensed and made available under the terms and conditions of the BSD License
  which accompanies this distribution.  The full text of the license may be found at
  http://opensource.org/licenses/bsd-license.php

  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

**/

#ifndef __ARM_LIB_PRIVATE_H__
#define __ARM_LIB_PRIVATE_H__

#define CACHE_SIZE_4_KB             (3UL)
#define CACHE_SIZE_8_KB             (4UL)
#define CACHE_SIZE_16_KB            (5UL)
#define CACHE_SIZE_32_KB            (6UL)
#define CACHE_SIZE_64_KB            (7UL)
#define CACHE_SIZE_128_KB           (8UL)

#define CACHE_ASSOCIATIVITY_DIRECT  (0UL)
#define CACHE_ASSOCIATIVITY_4_WAY   (2UL)
#define CACHE_ASSOCIATIVITY_8_WAY   (3UL)

#define CACHE_PRESENT               (0UL)
#define CACHE_NOT_PRESENT           (1UL)

#define CACHE_LINE_LENGTH_32_BYTES  (2UL)

#define SIZE_FIELD_TO_CACHE_SIZE(x)           (((x) >> 6) & 0x0F)
#define SIZE_FIELD_TO_CACHE_ASSOCIATIVITY(x)  (((x) >> 3) & 0x07)
#define SIZE_FIELD_TO_CACHE_PRESENCE(x)       (((x) >> 2) & 0x01)
#define SIZE_FIELD_TO_CACHE_LINE_LENGTH(x)    (((x) >> 0) & 0x03)

#define DATA_CACHE_SIZE_FIELD(x)              (((x) >> 12) & 0x0FFF)
#define INSTRUCTION_CACHE_SIZE_FIELD(x)       (((x) >>  0) & 0x0FFF)

#define DATA_CACHE_SIZE(x)                    (SIZE_FIELD_TO_CACHE_SIZE(DATA_CACHE_SIZE_FIELD(x)))
#define DATA_CACHE_ASSOCIATIVITY(x)           (SIZE_FIELD_TO_CACHE_ASSOCIATIVITY(DATA_CACHE_SIZE_FIELD(x)))
#define DATA_CACHE_PRESENT(x)                 (SIZE_FIELD_TO_CACHE_PRESENCE(DATA_CACHE_SIZE_FIELD(x)))
#define DATA_CACHE_LINE_LENGTH(x)             (SIZE_FIELD_TO_CACHE_LINE_LENGTH(DATA_CACHE_SIZE_FIELD(x)))

#define INSTRUCTION_CACHE_SIZE(x)             (SIZE_FIELD_TO_CACHE_SIZE(INSTRUCTION_CACHE_SIZE_FIELD(x)))
#define INSTRUCTION_CACHE_ASSOCIATIVITY(x)    (SIZE_FIELD_TO_CACHE_ASSOCIATIVITY(INSTRUCTION_CACHE_SIZE_FIELD(x)))
#define INSTRUCTION_CACHE_PRESENT(x)          (SIZE_FIELD_TO_CACHE_PRESENCE(INSTRUCTION_CACHE_SIZE_FIELD(x)))
#define INSTRUCTION_CACHE_LINE_LENGTH(x)      (SIZE_FIELD_TO_CACHE_LINE_LENGTH(INSTRUCTION_CACHE_SIZE_FIELD(x)))

#define CACHE_TYPE(x)                         (((x) >> 25) & 0x0F)
#define CACHE_TYPE_WRITE_BACK                 (0x0EUL)

#define CACHE_ARCHITECTURE(x)                 (((x) >> 24) & 0x01)
#define CACHE_ARCHITECTURE_UNIFIED            (0UL)
#define CACHE_ARCHITECTURE_SEPARATE           (1UL)

typedef VOID (*ARM_V7_CACHE_OPERATION)(UINT32);

VOID
CPSRMaskInsert (
  IN  UINT32  Mask,
  IN  UINT32  Value
  );

UINT32
CPSRRead (
  VOID
  );


UINT32 
ReadCCSIDR (
  IN UINT32 CSSELR
  );  
  

UINT32
ReadCLIDR (
  VOID
  );
  
VOID
ArmV7AllDataCachesOperation (
  IN  ARM_V7_CACHE_OPERATION  DataCacheOperation
  );


#endif // __ARM_LIB_PRIVATE_H__