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      1 /** @file
      2 
      3   Copyright (c) 2008 - 2009, Apple Inc. All rights reserved.<BR>
      4 
      5   This program and the accompanying materials
      6   are licensed and made available under the terms and conditions of the BSD License
      7   which accompanies this distribution.  The full text of the license may be found at
      8   http://opensource.org/licenses/bsd-license.php
      9 
     10   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
     11   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
     12 
     13 **/
     14 
     15 #ifndef __ARM_LIB_PRIVATE_H__
     16 #define __ARM_LIB_PRIVATE_H__
     17 
     18 #define CACHE_SIZE_4_KB             (3UL)
     19 #define CACHE_SIZE_8_KB             (4UL)
     20 #define CACHE_SIZE_16_KB            (5UL)
     21 #define CACHE_SIZE_32_KB            (6UL)
     22 #define CACHE_SIZE_64_KB            (7UL)
     23 #define CACHE_SIZE_128_KB           (8UL)
     24 
     25 #define CACHE_ASSOCIATIVITY_DIRECT  (0UL)
     26 #define CACHE_ASSOCIATIVITY_4_WAY   (2UL)
     27 #define CACHE_ASSOCIATIVITY_8_WAY   (3UL)
     28 
     29 #define CACHE_PRESENT               (0UL)
     30 #define CACHE_NOT_PRESENT           (1UL)
     31 
     32 #define CACHE_LINE_LENGTH_32_BYTES  (2UL)
     33 
     34 #define SIZE_FIELD_TO_CACHE_SIZE(x)           (((x) >> 6) & 0x0F)
     35 #define SIZE_FIELD_TO_CACHE_ASSOCIATIVITY(x)  (((x) >> 3) & 0x07)
     36 #define SIZE_FIELD_TO_CACHE_PRESENCE(x)       (((x) >> 2) & 0x01)
     37 #define SIZE_FIELD_TO_CACHE_LINE_LENGTH(x)    (((x) >> 0) & 0x03)
     38 
     39 #define DATA_CACHE_SIZE_FIELD(x)              (((x) >> 12) & 0x0FFF)
     40 #define INSTRUCTION_CACHE_SIZE_FIELD(x)       (((x) >>  0) & 0x0FFF)
     41 
     42 #define DATA_CACHE_SIZE(x)                    (SIZE_FIELD_TO_CACHE_SIZE(DATA_CACHE_SIZE_FIELD(x)))
     43 #define DATA_CACHE_ASSOCIATIVITY(x)           (SIZE_FIELD_TO_CACHE_ASSOCIATIVITY(DATA_CACHE_SIZE_FIELD(x)))
     44 #define DATA_CACHE_PRESENT(x)                 (SIZE_FIELD_TO_CACHE_PRESENCE(DATA_CACHE_SIZE_FIELD(x)))
     45 #define DATA_CACHE_LINE_LENGTH(x)             (SIZE_FIELD_TO_CACHE_LINE_LENGTH(DATA_CACHE_SIZE_FIELD(x)))
     46 
     47 #define INSTRUCTION_CACHE_SIZE(x)             (SIZE_FIELD_TO_CACHE_SIZE(INSTRUCTION_CACHE_SIZE_FIELD(x)))
     48 #define INSTRUCTION_CACHE_ASSOCIATIVITY(x)    (SIZE_FIELD_TO_CACHE_ASSOCIATIVITY(INSTRUCTION_CACHE_SIZE_FIELD(x)))
     49 #define INSTRUCTION_CACHE_PRESENT(x)          (SIZE_FIELD_TO_CACHE_PRESENCE(INSTRUCTION_CACHE_SIZE_FIELD(x)))
     50 #define INSTRUCTION_CACHE_LINE_LENGTH(x)      (SIZE_FIELD_TO_CACHE_LINE_LENGTH(INSTRUCTION_CACHE_SIZE_FIELD(x)))
     51 
     52 #define CACHE_TYPE(x)                         (((x) >> 25) & 0x0F)
     53 #define CACHE_TYPE_WRITE_BACK                 (0x0EUL)
     54 
     55 #define CACHE_ARCHITECTURE(x)                 (((x) >> 24) & 0x01)
     56 #define CACHE_ARCHITECTURE_UNIFIED            (0UL)
     57 #define CACHE_ARCHITECTURE_SEPARATE           (1UL)
     58 
     59 VOID
     60 CPSRMaskInsert (
     61   IN  UINT32  Mask,
     62   IN  UINT32  Value
     63   );
     64 
     65 UINT32
     66 CPSRRead (
     67   VOID
     68   );
     69 
     70 UINT32
     71 ReadCCSIDR (
     72   IN UINT32 CSSELR
     73   );
     74 
     75 UINT32
     76 ReadCLIDR (
     77   VOID
     78   );
     79 
     80 #endif // __ARM_LIB_PRIVATE_H__
     81