Unit PlatformARMv8
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Description
Ultibo Platform Interface unit for ARMv8
The ARMv8 does not support the SWP/SWPB instructions for syncronisation (Lock/Mutex/Semaphore etc) unless enabled.
On ARMv8 Unaligned memory access is always enabled.
On ARMv8 the Extended Page Table format is always enabled.
For usage of barriers (DMB/DSB/ISB) after cache maintenance operations see: ARM.Reference_Manual_1.pdf - Appendix G Barrier Litmus Tests
Note: This unit currently only supports ARMv8 in Aarch32 mode, support for Aarch64 mode will be added in future.
Constants
ARMv8 page tables shift
ARMV8_PAGE_TABLES_* ARMV8_PAGE_TABLES_SHIFT = 10;
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ARMv8 CP15 C0 main Id
ARMV8_CP15_C0_MAINID_* ARMV8_CP15_C0_MAINID_IMPLEMENTOR_MASK = ($FF shl 24);
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ARMV8_CP15_C0_MAINID_VARIANT_MASK = ($F shl 20);
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ARMV8_CP15_C0_MAINID_ARCHITECTURE_MASK = ($F shl 16);
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ARMV8_CP15_C0_MAINID_PARTNUMBER_MASK = ($FFF shl 4);
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ARMV8_CP15_C0_MAINID_REVISION_MASK = ($F shl 0);
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ARMV8_CP15_C0_MAINID_IMPLEMENTOR_ARM = ($41 shl 24);
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ARMV8_CP15_C0_MAINID_IMPLEMENTOR_DEC = ($44 shl 24);
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ARMV8_CP15_C0_MAINID_IMPLEMENTOR_FREESCALE = ($4D shl 24);
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ARMV8_CP15_C0_MAINID_IMPLEMENTOR_QUALCOMM = ($51 shl 24);
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ARMV8_CP15_C0_MAINID_IMPLEMENTOR_MARVELL = ($56 shl 24);
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ARMV8_CP15_C0_MAINID_IMPLEMENTOR_INTEL = ($69 shl 24);
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ARMV8_CP15_C0_MAINID_ARCHITECTURE_ARMV4 = ($1 shl 16);
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ARMV8_CP15_C0_MAINID_ARCHITECTURE_ARMV4T = ($2 shl 16);
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ARMV8_CP15_C0_MAINID_ARCHITECTURE_ARMV5 = ($3 shl 16);
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ARMV8_CP15_C0_MAINID_ARCHITECTURE_ARMV5T = ($4 shl 16);
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ARMV8_CP15_C0_MAINID_ARCHITECTURE_ARMV5TE = ($5 shl 16);
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ARMV8_CP15_C0_MAINID_ARCHITECTURE_ARMV5TEJ = ($6 shl 16);
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ARMV8_CP15_C0_MAINID_ARCHITECTURE_ARMV6 = ($7 shl 16);
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ARMV8_CP15_C0_MAINID_ARCHITECTURE_CPUID = ($F shl 16);
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| Cortex A5 to Cortext A17 are ARMv7 part numbers, included here to allow ARMv7 code on ARMv8 in 32bit mode | |
ARMV8_CP15_C0_MAINID_PARTNUMBER_CORTEX_A5 = ($C05 shl 4);
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ARMV8_CP15_C0_MAINID_PARTNUMBER_CORTEX_A7 = ($C07 shl 4);
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ARMV8_CP15_C0_MAINID_PARTNUMBER_CORTEX_A8 = ($C08 shl 4);
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ARMV8_CP15_C0_MAINID_PARTNUMBER_CORTEX_A9 = ($C09 shl 4);
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ARMV8_CP15_C0_MAINID_PARTNUMBER_CORTEX_A15 = ($C0F shl 4);
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ARMV8_CP15_C0_MAINID_PARTNUMBER_CORTEX_A17 = ($C0E shl 4);
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ARMV8_CP15_C0_MAINID_PARTNUMBER_CORTEX_A53 = ($D03 shl 4);
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ARMV8_CP15_C0_MAINID_PARTNUMBER_CORTEX_A57 = ($D07 shl 4);
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ARMV8_CP15_C0_MAINID_PARTNUMBER_CORTEX_A72 = ($D08 shl 4);
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ARMv8 CP15 C0 multiprocessor affinity
ARMV8_CP15_C0_MPID_* ARMV8_CP15_C0_MPID_MPE = (1 shl 31);
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ARMV8_CP15_C0_MPID_U_UNIPROCESSOR = (1 shl 30);
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ARMV8_CP15_C0_MPID_U_MULTIPROCESSOR = (0 shl 30);
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ARMV8_CP15_C0_MPID_CLUSTERID_MASK = ($F shl 8);
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ARMV8_CP15_C0_MPID_CPUID_MASK = (3 shl 0);
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ARMv8 CP15 C0 cache size Id
ARMV8_CP15_C0_CCSID_* ARMV8_CP15_C0_CCSID_WT = (1 shl 31);
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Indicates whether the cache level supports Write-Through |
ARMV8_CP15_C0_CCSID_WB = (1 shl 30);
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Indicates whether the cache level supports Write-Back |
ARMV8_CP15_C0_CCSID_RA = (1 shl 29);
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Indicates whether the cache level supports Read-Allocation |
ARMV8_CP15_C0_CCSID_WA = (1 shl 28);
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Indicates whether the cache level supports Write-Allocation |
ARMV8_CP15_C0_CCSID_NUMSETS_MASK = ($7FFF shl 13);
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(Number of sets in cache) - 1, therefore a value of 0 indicates 1 set in the cache. The number of sets does not have to be a power of 2. |
ARMV8_CP15_C0_CCSID_NUMWAYS_MASK = ($3FF shl 3);
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(Associativity of cache) - 1, therefore a value of 0 indicates an associativity of 1. The associativity does not have to be a power of 2. |
ARMV8_CP15_C0_CCSID_LINESIZE_MASK = (7 shl 0);
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(Log2(Number of words in cache line)) -2. (eg For a line length of 8 words: Log2(8) = 3, LineSize entry = 1) |
ARMV8_CP15_C0_CCSID_NUMSETS_SHIFT = 13;
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ARMV8_CP15_C0_CCSID_NUMWAYS_SHIFT = 3;
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ARMv8 CP15 C0 cache level Id
ARMV8_CP15_C0_CLID_* ARMV8_CP15_C0_CLID_LOUU_MASK = (7 shl 27);
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Level of Unification Uniprocessor for the cache hierarchy |
ARMV8_CP15_C0_CLID_LOC_MASK = (7 shl 24);
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Level of Coherency for the cache hierarchy} |
ARMV8_CP15_C0_CLID_LOUIS_MASK = (7 shl 21);
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Level of Unification Inner Shareable for the cache hierarchy} |
ARMV8_CP15_C0_CLID_CTYPE7_MASK = (7 shl 18);
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Cache Type fields. Indicate the type of cache implemented at each level, from Level 1 up to a maximum of seven levels of cache hierarchy. |
ARMV8_CP15_C0_CLID_CTYPE7_NONE = (0 shl 18);
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No cache |
ARMV8_CP15_C0_CLID_CTYPE7_INSTRUCTION = (1 shl 18);
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Instruction cache only |
ARMV8_CP15_C0_CLID_CTYPE7_DATA = (2 shl 18);
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Data cache only |
ARMV8_CP15_C0_CLID_CTYPE7_SEPARATE = (3 shl 18);
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Separate instruction and data caches |
ARMV8_CP15_C0_CLID_CTYPE7_UNIFIED = (4 shl 18);
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Unified cache |
ARMV8_CP15_C0_CLID_CTYPE6_MASK = (7 shl 15);
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Cache Type fields. Indicate the type of cache implemented at each level, from Level 1 up to a maximum of seven levels of cache hierarchy. |
ARMV8_CP15_C0_CLID_CTYPE6_NONE = (0 shl 15);
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No cache |
ARMV8_CP15_C0_CLID_CTYPE6_INSTRUCTION = (1 shl 15);
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Instruction cache only |
ARMV8_CP15_C0_CLID_CTYPE6_DATA = (2 shl 15);
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Data cache only |
ARMV8_CP15_C0_CLID_CTYPE6_SEPARATE = (3 shl 15);
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Separate instruction and data caches |
ARMV8_CP15_C0_CLID_CTYPE6_UNIFIED = (4 shl 15);
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Unified cache |
ARMV8_CP15_C0_CLID_CTYPE5_MASK = (7 shl 12);
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Cache Type fields. Indicate the type of cache implemented at each level, from Level 1 up to a maximum of seven levels of cache hierarchy. |
ARMV8_CP15_C0_CLID_CTYPE5_NONE = (0 shl 12);
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No cache |
ARMV8_CP15_C0_CLID_CTYPE5_INSTRUCTION = (1 shl 12);
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Instruction cache only |
ARMV8_CP15_C0_CLID_CTYPE5_DATA = (2 shl 12);
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Data cache only |
ARMV8_CP15_C0_CLID_CTYPE5_SEPARATE = (3 shl 12);
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Separate instruction and data caches |
ARMV8_CP15_C0_CLID_CTYPE5_UNIFIED = (4 shl 12);
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Unified cache |
ARMV8_CP15_C0_CLID_CTYPE4_MASK = (7 shl 9);
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Cache Type fields. Indicate the type of cache implemented at each level, from Level 1 up to a maximum of seven levels of cache hierarchy. |
ARMV8_CP15_C0_CLID_CTYPE4_NONE = (0 shl 9);
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No cache |
ARMV8_CP15_C0_CLID_CTYPE4_INSTRUCTION = (1 shl 9);
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Instruction cache only |
ARMV8_CP15_C0_CLID_CTYPE4_DATA = (2 shl 9);
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Data cache only |
ARMV8_CP15_C0_CLID_CTYPE4_SEPARATE = (3 shl 9);
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Separate instruction and data caches |
ARMV8_CP15_C0_CLID_CTYPE4_UNIFIED = (4 shl 9);
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Unified cache |
ARMV8_CP15_C0_CLID_CTYPE3_MASK = (7 shl 6);
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Cache Type fields. Indicate the type of cache implemented at each level, from Level 1 up to a maximum of seven levels of cache hierarchy. |
ARMV8_CP15_C0_CLID_CTYPE3_NONE = (0 shl 6);
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No cache |
ARMV8_CP15_C0_CLID_CTYPE3_INSTRUCTION = (1 shl 6);
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Instruction cache only |
ARMV8_CP15_C0_CLID_CTYPE3_DATA = (2 shl 6);
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Data cache only |
ARMV8_CP15_C0_CLID_CTYPE3_SEPARATE = (3 shl 6);
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Separate instruction and data caches |
ARMV8_CP15_C0_CLID_CTYPE3_UNIFIED = (4 shl 6);
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Unified cache |
ARMV8_CP15_C0_CLID_CTYPE2_MASK = (7 shl 3);
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Cache Type fields. Indicate the type of cache implemented at each level, from Level 1 up to a maximum of seven levels of cache hierarchy. |
ARMV8_CP15_C0_CLID_CTYPE2_NONE = (0 shl 3);
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No cache |
ARMV8_CP15_C0_CLID_CTYPE2_INSTRUCTION = (1 shl 3);
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Instruction cache only |
ARMV8_CP15_C0_CLID_CTYPE2_DATA = (2 shl 3);
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Data cache only |
ARMV8_CP15_C0_CLID_CTYPE2_SEPARATE = (3 shl 3);
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Separate instruction and data caches |
ARMV8_CP15_C0_CLID_CTYPE2_UNIFIED = (4 shl 3);
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Unified cache |
ARMV8_CP15_C0_CLID_CTYPE1_MASK = (7 shl 0);
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Cache Type fields. Indicate the type of cache implemented at each level, from Level 1 up to a maximum of seven levels of cache hierarchy. |
ARMV8_CP15_C0_CLID_CTYPE1_NONE = (0 shl 0);
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No cache |
ARMV8_CP15_C0_CLID_CTYPE1_INSTRUCTION = (1 shl 0);
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Instruction cache onl |
ARMV8_CP15_C0_CLID_CTYPE1_DATA = (2 shl 0);
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Data cache only |
ARMV8_CP15_C0_CLID_CTYPE1_SEPARATE = (3 shl 0);
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Separate instruction and data caches |
ARMV8_CP15_C0_CLID_CTYPE1_UNIFIED = (4 shl 0);
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Unified cach |
ARMv8 CP15 C0 cache size selection
ARMV8_CP15_C0_CSSEL_* ARMV8_CP15_C0_CSSEL_LEVEL1 = (0 shl 1);
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Cache level of required cache. Permitted values are from 0b000, indicating Level 1 cache, to 0b110 indicating Level 7 cache. |
ARMV8_CP15_C0_CSSEL_LEVEL2 = (1 shl 1);
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ARMV8_CP15_C0_CSSEL_LEVEL3 = (2 shl 1);
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ARMV8_CP15_C0_CSSEL_LEVEL4 = (3 shl 1);
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ARMV8_CP15_C0_CSSEL_LEVEL5 = (4 shl 1);
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ARMV8_CP15_C0_CSSEL_LEVEL6 = (5 shl 1);
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ARMV8_CP15_C0_CSSEL_LEVEL7 = (6 shl 1);
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ARMV8_CP15_C0_CSSEL_DATA = (0 shl 0);
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Instruction not Data bit (0 = Data or unified cache) |
ARMV8_CP15_C0_CSSEL_INSTRUCTION = (1 shl 0);
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Instruction not Data bit (1 = Instruction cache) |
ARMv8 CP15 C1 control
ARMV8_CP15_C1_* ARMV8_CP15_C1_TE_BIT = (1 shl 30);
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Thumb Exception enable. This bit enabled exceptions to be taken in Thumb state when set to 1 (Default 0). |
ARMV8_CP15_C1_AFE_BIT = (1 shl 29);
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Access Flag Enable bit. This bit enables use of the AP[0] bit in the translation table descriptors as an access flag when set to 1 (Default 0). |
ARMV8_CP15_C1_TRE_BIT = (1 shl 28);
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TEX remap enabled when set to 1 (TEX[2:1] become page table bits for OS) (Default 0) |
ARMV8_CP15_C1_NMFI_BIT = (1 shl 27);
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Non-maskable Fast Interrupts enabled when set to 1 (Default 0) |
ARMV8_CP15_C1_EE_BIT = (1 shl 25);
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CPSR E bit is set to 1 on an exception when set to 1 (Default 0) |
ARMV8_CP15_C1_VE_BIT = (1 shl 24);
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Interrupt vectors are defined by the VIC interface when set to 1 (Default 0) |
ARMV8_CP15_C1_U_BIT = (1 shl 22);
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Unaligned data access support enabled when set to 1 (Always 1 in ARMv8). The processor permits unaligned loads and stores and support for mixed endian data is enabled. |
ARMV8_CP15_C1_FI_BIT = (1 shl 21);
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Low interrupt latency configuration enabled when set to 1 (Default 0) |
ARMV8_CP15_C1_UWXN_BIT = (1 shl 20);
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Unprivileged write permission implies Execute Never (XN) when set to 1 (Default 0)(Cortext-A7 MPCore) |
ARMV8_CP15_C1_WXN_BIT = (1 shl 19);
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Write permission implies Execute Never (XN) when set to 1 (Default 0)(Cortext-A7 MPCore) |
ARMV8_CP15_C1_HA_BIT = (1 shl 17);
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Hardware Access Flag Enable bit. If the implementation provides hardware management of the access flag this bit enables the access flag management (Default 0). |
ARMV8_CP15_C1_RR_BIT = (1 shl 14);
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Predictable cache replacement strategy by round-robin replacement when set to 1 (Default 0) |
ARMV8_CP15_C1_V_BIT= (1 shl 13);
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High exception vectors selected when set to 1, address range = 0xFFFF0000-0xFFFF001C (Default 0). |
ARMV8_CP15_C1_I_BIT = (1 shl 12);
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L1 Instruction Cache enabled when set to 1 (Default 0) |
ARMV8_CP15_C1_Z_BIT = (1 shl 11);
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Branch prediction enabled when set to 1 (Default 0)(Always Enabled on Cortext-A7 MPCore) |
ARMV8_CP15_C1_SW_BIT = (1 shl 10);
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SWP/SWPB Enable bit. This bit enables the use of SWP and SWPB instructions when set to 1 (Default 0). |
ARMV8_CP15_C1_B_BIT = (1 shl 7);
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Big-endian word-invariant memory system when set to 1 (Always 0 in ARMv8) |
ARMV8_CP15_C1_C_BIT = (1 shl 2);
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L1 Data cache enabled when set to 1 (Default 0) |
ARMV8_CP15_C1_A_BIT = (1 shl 1);
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Strict alignment fault checking enabled when set to 1 (Default 0) |
ARMV8_CP15_C1_M_BIT = (1 shl 0);
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MMU enabled when set to 1 (Default 0) |
ARMv8 CP15 C1 auxiliary control
ARMV8_CP15_C1_AUX_* ARMV8_CP15_C1_AUX_DDI = (1 shl 28);
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Disable dual issue when set to 1 (Default 0) |
ARMV8_CP15_C1_AUX_DDVM = (1 shl 15);
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Disable Distributed Virtual Memory (DVM) transactions when set to 1 (Default 0) |
ARMV8_CP15_C1_AUX_L1PCTL_0 = (0 shl 13);
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L1 Data prefetch control, Prefetch disabled |
ARMV8_CP15_C1_AUX_L1PCTL_1 = (1 shl 13);
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L1 Data prefetch control, 1 outstanding pre-fetch permitted |
ARMV8_CP15_C1_AUX_L1PCTL_2 = (2 shl 13);
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L1 Data prefetch control, 2 outstanding pre-fetches permitted |
ARMV8_CP15_C1_AUX_L1PCTL_3 = (3 shl 13);
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L1 Data prefetch control, 3 outstanding pre-fetches permitted, this is the reset value (Default) |
ARMV8_CP15_C1_AUX_L1RADIS = (1 shl 12);
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L1 Data Cache read-allocate mode disable when set to 1 (Default 0) |
ARMV8_CP15_C1_AUX_L2RADIS = (1 shl 11);
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L2 Data Cache read-allocate mode disable when set to 1 (Default 0) |
ARMV8_CP15_C1_AUX_DODMBS = (1 shl 10);
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Disable optimized data memory barrier behavior when set to 1 (Default 0) |
ARMV8_CP15_C1_AUX_SMP = (1 shl 6);
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Enables coherent requests to the processor when set to 1 (Default 0). You must ensure this bit is set to 1 before the caches and MMU are enabled, or any cache and TLB maintenance operations are performed. |
ARMV8_CP15_C1_AUX_FW = (1 shl 0);
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Cache and TLB maintenance broadcast enabled when set to 1 (Default 0) (Cortex-A9 Only) |
ARMv8 CP15 C1 coprocessor access control
ARMV8_CP15_C1_CP* ARMV8_CP15_C1_COPRO_ASEDIS = (1 shl 31);
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Disable Advanced SIMD Functionality when set to 1 (Default 0) |
ARMV8_CP15_C1_COPRO_D32DIS = (1 shl 30);
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Disable use of D16-D31 of the VFP register file when set to 1 (Default 0) |
ARMV8_CP15_C1_CP0_NONE = (0 shl 0);
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Access denied (Default) |
ARMV8_CP15_C1_CP0_SYS = (1 shl 0);
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Privileged mode access only |
ARMV8_CP15_C1_CP0_USER = (3 shl 0);
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Privileged and User mode access |
ARMV8_CP15_C1_CP1_NONE = (0 shl 2);
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Access denied (Default) |
ARMV8_CP15_C1_CP1_SYS = (1 shl 2);
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Privileged mode access only |
ARMV8_CP15_C1_CP1_USER = (3 shl 2);
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Privileged and User mode access |
ARMV8_CP15_C1_CP2_NONE = (0 shl 4);
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Access denied (Default) |
ARMV8_CP15_C1_CP2_SYS = (1 shl 4);
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Privileged mode access only |
ARMV8_CP15_C1_CP2_USER = (3 shl 4);
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Privileged and User mode access |
ARMV8_CP15_C1_CP3_NONE = (0 shl 6);
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Access denied (Default) |
ARMV8_CP15_C1_CP3_SYS = (1 shl 6);
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Privileged mode access only |
ARMV8_CP15_C1_CP3_USER = (3 shl 6);
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Privileged and User mode access |
ARMV8_CP15_C1_CP4_NONE = (0 shl 8);
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Access denied (Default) |
ARMV8_CP15_C1_CP4_SYS = (1 shl 8);
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Privileged mode access only |
ARMV8_CP15_C1_CP4_USER = (3 shl 8);
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Privileged and User mode access |
ARMV8_CP15_C1_CP5_NONE = (0 shl 10);
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Access denied (Default) |
ARMV8_CP15_C1_CP5_SYS = (1 shl 10);
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Privileged mode access only |
ARMV8_CP15_C1_CP5_USER = (3 shl 10);
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Privileged and User mode access |
ARMV8_CP15_C1_CP6_NONE = (0 shl 12);
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Access denied (Default) |
ARMV8_CP15_C1_CP6_SYS = (1 shl 12);
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Privileged mode access only |
ARMV8_CP15_C1_CP6_USER = (3 shl 12);
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Privileged and User mode access |
ARMV8_CP15_C1_CP7_NONE = (0 shl 14);
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Access denied (Default) |
ARMV8_CP15_C1_CP7_SYS = (1 shl 14);
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Privileged mode access only |
ARMV8_CP15_C1_CP7_USER = (3 shl 14);
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Privileged and User mode access |
ARMV8_CP15_C1_CP8_NONE = (0 shl 16);
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Access denied (Default) |
ARMV8_CP15_C1_CP8_SYS = (1 shl 16);
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Privileged mode access only |
ARMV8_CP15_C1_CP8_USER = (3 shl 16);
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Privileged and User mode access |
ARMV8_CP15_C1_CP9_NONE = (0 shl 18);
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Access denied (Default) |
ARMV8_CP15_C1_CP9_SYS = (1 shl 18);
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Privileged mode access only |
ARMV8_CP15_C1_CP9_USER = (3 shl 18);
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Privileged and User mode access |
ARMV8_CP15_C1_CP10_NONE = (0 shl 20);
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Access denied (Default) |
ARMV8_CP15_C1_CP10_SYS = (1 shl 20);
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Privileged mode access only |
ARMV8_CP15_C1_CP10_USER = (3 shl 20);
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Privileged and User mode access |
ARMV8_CP15_C1_CP11_NONE = (0 shl 22);
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Access denied (Default) |
ARMV8_CP15_C1_CP11_SYS = (1 shl 22);
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Privileged mode access only |
ARMV8_CP15_C1_CP11_USER = (3 shl 22);
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Privileged and User mode access |
ARMV8_CP15_C1_CP12_NONE = (0 shl 24);
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Access denied (Default) |
ARMV8_CP15_C1_CP12_SYS = (1 shl 24);
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Privileged mode access only |
ARMV8_CP15_C1_CP12_USER = (3 shl 24);
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Privileged and User mode access |
ARMV8_CP15_C1_CP13_NONE = (0 shl 26);
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Access denied (Default) |
ARMV8_CP15_C1_CP13_SYS = (1 shl 26);
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Privileged mode access only |
ARMV8_CP15_C1_CP13_USER = (3 shl 26);
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Privileged and User mode access |
| Coprocessors CP14 (Debug Control) and CP15 (System Control) are not affected by the Coprocessor Access Control Register | |
ARMv8 CP15 C1 secure configuration
ARMV8_CP15_C1_SCR_* ARMV8_CP15_C1_SCR_SIF = (1 shl 9);
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Secure Instruction Fetch bit |
ARMV8_CP15_C1_SCR_HCE = (1 shl 8);
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Hyp Call enable. This bit enables the use of HVC instruction from Non-secure PL1 modes. |
ARMV8_CP15_C1_SCR_SCD = (1 shl 7);
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Secure Monitor Call disable. This bit causes the SMC instruction to be UNDEFINED in Non-secure state. |
ARMV8_CP15_C1_SCR_NET = (1 shl 6);
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Not Early Termination. This bit disables early termination of data operations. |
ARMV8_CP15_C1_SCR_AW = (1 shl 5);
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A bit writable. This bit controls whether the A bit in the CPSR can be modified in Non-secure state. |
ARMV8_CP15_C1_SCR_FW = (1 shl 4);
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F bit writable. This bit controls whether the F bit in the CPSR can be modified in Non-secure state. |
ARMV8_CP15_C1_SCR_EA = (1 shl 3);
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External Abort handler. This bit controls which mode takes external aborts. |
ARMV8_CP15_C1_SCR_FIQ = (1 shl 2);
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FIQ handler. This bit controls which mode takes FIQ exceptions. |
ARMV8_CP15_C1_SCR_IRQ = (1 shl 1);
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IRQ handler. This bit controls which mode takes IRQ exceptions. |
ARMV8_CP15_C1_SCR_NS = (1 shl 0);
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Non Secure bit. Except when the processor is in Monitor mode, this bit determines the security state of the processor. |
ARMv8 CP15 C2 translation table base
ARMV8_CP15_C2_TTBR_* ARMV8_CP15_C2_TTBR_BASE_MASK = $FFFFC000;
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ARMV8_CP15_C2_TTBR_NOS = (1 shl 5);
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Not Outer Shareable bit (0 Outer Shareable/1 Inner Shareable) |
ARMV8_CP15_C2_TTBR_RGN_OUTER_NONCACHED = (0 shl 3);
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Normal Outer Noncacheable (Default) |
ARMV8_CP15_C2_TTBR_RGN_OUTER_WRITE_ALLOCATE = (1 shl 3);
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Normal Outer Write-back, Write Allocate |
ARMV8_CP15_C2_TTBR_RGN_OUTER_WRITE_THROUGH = (2 shl 3);
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Normal Outer Write-through, No Allocate on Write |
ARMV8_CP15_C2_TTBR_RGN_OUTER_WRITE_BACK = (3 shl 3);
|
Normal Outer Write-back, No Allocate on Write |
ARMV8_CP15_C2_TTBR_IMP = (1 shl 2);
|
The effect of this bit is IMPLEMENTATION DEFINED |
ARMV8_CP15_C2_TTBR_S = (1 shl 1);
|
Shareable bit (0 Non Shareable/1 Shareable) |
ARMV8_CP15_C2_TTBR_C_INNER_CACHED = (1 shl 0);
|
Cacheable bit (0 Inner Non Cacheable/1 Inner Cacheable) (ARMv8-A base only) |
ARMV8_CP15_C2_TTBR_IRGN_INNER_NONCACHED = (0 shl 6) or (0 shl 0);
|
Normal Inner Noncacheable (Default) |
ARMV8_CP15_C2_TTBR_IRGN_INNER_WRITE_ALLOCATE = (1 shl 6) or (0 shl 0);
|
Normal Inner Write-Back Write-Allocate Cacheable |
ARMV8_CP15_C2_TTBR_IRGN_INNER_WRITE_THROUGH = (0 shl 6) or (1 shl 0);
|
Normal Inner Write-Through Cacheable |
ARMV8_CP15_C2_TTBR_IRGN_INNER_WRITE_BACK = (1 shl 6) or (1 shl 0);
|
Normal Inner Write-Back no Write-Allocate Cacheable |
ARMv8 CP15 C3 domain access control
ARMV8_CP15_C3_DOMAIN* ARMV8_CP15_C3_DOMAIN0_NONE = (0 shl 0);
|
No access, Any access generates a domain fault (Default) |
ARMV8_CP15_C3_DOMAIN0_CLIENT = (1 shl 0);
|
Client, Accesses are checked against the access permission bits in the TLB entry |
ARMV8_CP15_C3_DOMAIN0_MANAGER = (3 shl 0);
|
Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated |
ARMV8_CP15_C3_DOMAIN1_NONE = (0 shl 2);
|
No access, Any access generates a domain fault (Default) |
ARMV8_CP15_C3_DOMAIN1_CLIENT = (1 shl 2);
|
Client, Accesses are checked against the access permission bits in the TLB entry |
ARMV8_CP15_C3_DOMAIN1_MANAGER = (3 shl 2);
|
Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated |
ARMV8_CP15_C3_DOMAIN2_NONE = (0 shl 4);
|
No access, Any access generates a domain fault (Default) |
ARMV8_CP15_C3_DOMAIN2_CLIENT = (1 shl 4);
|
Client, Accesses are checked against the access permission bits in the TLB entry |
ARMV8_CP15_C3_DOMAIN2_MANAGER = (3 shl 4);
|
Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated |
ARMV8_CP15_C3_DOMAIN3_NONE = (0 shl 6);
|
No access, Any access generates a domain fault (Default) |
ARMV8_CP15_C3_DOMAIN3_CLIENT = (1 shl 6);
|
Client, Accesses are checked against the access permission bits in the TLB entry |
ARMV8_CP15_C3_DOMAIN3_MANAGER = (3 shl 6);
|
Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated |
ARMV8_CP15_C3_DOMAIN4_NONE = (0 shl 8);
|
No access, Any access generates a domain fault (Default) |
ARMV8_CP15_C3_DOMAIN4_CLIENT = (1 shl 8);
|
Client, Accesses are checked against the access permission bits in the TLB entry |
ARMV8_CP15_C3_DOMAIN4_MANAGER = (3 shl 8);
|
Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated |
ARMV8_CP15_C3_DOMAIN5_NONE = (0 shl 10);
|
No access, Any access generates a domain fault (Default) |
ARMV8_CP15_C3_DOMAIN5_CLIENT = (1 shl 10);
|
Client, Accesses are checked against the access permission bits in the TLB entry |
ARMV8_CP15_C3_DOMAIN5_MANAGER = (3 shl 10);
|
Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated |
ARMV8_CP15_C3_DOMAIN6_NONE = (0 shl 12);
|
No access, Any access generates a domain fault (Default) |
ARMV8_CP15_C3_DOMAIN6_CLIENT = (1 shl 12);
|
Client, Accesses are checked against the access permission bits in the TLB entry |
ARMV8_CP15_C3_DOMAIN6_MANAGER = (3 shl 12);
|
Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated |
ARMV8_CP15_C3_DOMAIN7_NONE = (0 shl 14);
|
No access, Any access generates a domain fault (Default) |
ARMV8_CP15_C3_DOMAIN7_CLIENT = (1 shl 14);
|
Client, Accesses are checked against the access permission bits in the TLB entry |
ARMV8_CP15_C3_DOMAIN7_MANAGER = (3 shl 14);
|
Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated |
ARMV8_CP15_C3_DOMAIN8_NONE = (0 shl 16);
|
No access, Any access generates a domain fault (Default) |
ARMV8_CP15_C3_DOMAIN8_CLIENT = (1 shl 16);
|
Client, Accesses are checked against the access permission bits in the TLB entry |
ARMV8_CP15_C3_DOMAIN8_MANAGER = (3 shl 16);
|
Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated |
ARMV8_CP15_C3_DOMAIN9_NONE = (0 shl 18);
|
No access, Any access generates a domain fault (Default) |
ARMV8_CP15_C3_DOMAIN9_CLIENT = (1 shl 18);
|
Client, Accesses are checked against the access permission bits in the TLB entry |
ARMV8_CP15_C3_DOMAIN9_MANAGER = (3 shl 18);
|
Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated |
ARMV8_CP15_C3_DOMAIN10_NONE = (0 shl 20);
|
No access, Any access generates a domain fault (Default) |
ARMV8_CP15_C3_DOMAIN10_CLIENT = (1 shl 20);
|
Client, Accesses are checked against the access permission bits in the TLB entry |
ARMV8_CP15_C3_DOMAIN10_MANAGER = (3 shl 20);
|
Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated |
ARMV8_CP15_C3_DOMAIN11_NONE = (0 shl 22);
|
No access, Any access generates a domain fault (Default) |
ARMV8_CP15_C3_DOMAIN11_CLIENT = (1 shl 22);
|
Client, Accesses are checked against the access permission bits in the TLB entry |
ARMV8_CP15_C3_DOMAIN11_MANAGER = (3 shl 22);
|
Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated |
ARMV8_CP15_C3_DOMAIN12_NONE = (0 shl 24);
|
No access, Any access generates a domain fault (Default) |
ARMV8_CP15_C3_DOMAIN12_CLIENT = (1 shl 24);
|
Client, Accesses are checked against the access permission bits in the TLB entry |
ARMV8_CP15_C3_DOMAIN12_MANAGER = (3 shl 24);
|
Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated |
ARMV8_CP15_C3_DOMAIN13_NONE = (0 shl 26);
|
No access, Any access generates a domain fault (Default) |
ARMV8_CP15_C3_DOMAIN13_CLIENT = (1 shl 26);
|
Client, Accesses are checked against the access permission bits in the TLB entry |
ARMV8_CP15_C3_DOMAIN13_MANAGER = (3 shl 26);
|
Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated |
ARMV8_CP15_C3_DOMAIN14_NONE = (0 shl 28);
|
No access, Any access generates a domain fault (Default) |
ARMV8_CP15_C3_DOMAIN14_CLIENT = (1 shl 28);
|
Client, Accesses are checked against the access permission bits in the TLB entry |
ARMV8_CP15_C3_DOMAIN14_MANAGER = (3 shl 28);
|
Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated |
ARMV8_CP15_C3_DOMAIN15_NONE = (0 shl 30);
|
No access, Any access generates a domain fault (Default) |
ARMV8_CP15_C3_DOMAIN15_CLIENT = (1 shl 30);
|
Client, Accesses are checked against the access permission bits in the TLB entry |
ARMV8_CP15_C3_DOMAIN15_MANAGER = (3 shl 30);
|
Manager, Accesses are not checked against the access permission bits in the TLB entry, so a permission fault cannot be generated |
ARMv8 CP15 C10 primary region remap
ARMV8_CP15_C10_PRRR_* ARMV8_CP15_C10_PRRR_NOS7 = (1 shl 31);
|
Outer Shareable property mapping for memory attributes 7, if the region is mapped as Normal Shareable (0 Outer Shareable/1 Inner Shareable) |
ARMV8_CP15_C10_PRRR_NOS6 = (1 shl 30);
|
Outer Shareable property mapping for memory attributes 6, if the region is mapped as Normal Shareable (0 Outer Shareable/1 Inner Shareable) |
ARMV8_CP15_C10_PRRR_NOS5 = (1 shl 29);
|
Outer Shareable property mapping for memory attributes 5, if the region is mapped as Normal Shareable (0 Outer Shareable/1 Inner Shareable) |
ARMV8_CP15_C10_PRRR_NOS4 = (1 shl 28);
|
Outer Shareable property mapping for memory attributes 4, if the region is mapped as Normal Shareable (0 Outer Shareable/1 Inner Shareable) |
ARMV8_CP15_C10_PRRR_NOS3 = (1 shl 27);
|
Outer Shareable property mapping for memory attributes 3, if the region is mapped as Normal Shareable (0 Outer Shareable/1 Inner Shareable) |
ARMV8_CP15_C10_PRRR_NOS2 = (1 shl 26);
|
Outer Shareable property mapping for memory attributes 2, if the region is mapped as Normal Shareable (0 Outer Shareable/1 Inner Shareable) |
ARMV8_CP15_C10_PRRR_NOS1 = (1 shl 25);
|
Outer Shareable property mapping for memory attributes 1, if the region is mapped as Normal Shareable (0 Outer Shareable/1 Inner Shareable) |
ARMV8_CP15_C10_PRRR_NOS0 = (1 shl 24);
|
Outer Shareable property mapping for memory attributes 0, if the region is mapped as Normal Shareable (0 Outer Shareable/1 Inner Shareable) |
ARMV8_CP15_C10_PRRR_NS1 = (1 shl 19);
|
Mapping of S = 1 attribute for Normal memory (0 Not Sharable/1 Shareable) |
ARMV8_CP15_C10_PRRR_NS0 = (1 shl 18);
|
Mapping of S = 0 attribute for Normal memory (0 Not Sharable/1 Shareable) |
ARMV8_CP15_C10_PRRR_DS1 = (1 shl 17);
|
Mapping of S = 1 attribute for Device memory (This field has no significance in the Cortex-A7) |
ARMV8_CP15_C10_PRRR_DS0 = (1 shl 16);
|
Mapping of S = 0 attribute for Device memory (This field has no significance in the Cortex-A7) |
ARMV8_CP15_C10_PRRR_TR7_STRONGLY_ORDERED = (0 shl 14);
|
Primary TEX mapping for memory attributes 7 (The value of the TEX[0], C and B bits) |
ARMV8_CP15_C10_PRRR_TR7_DEVICE = (1 shl 14);
|
Primary TEX mapping for memory attributes 7 (The value of the TEX[0], C and B bits) |
ARMV8_CP15_C10_PRRR_TR7_NORMAL = (2 shl 14);
|
Primary TEX mapping for memory attributes 7 (The value of the TEX[0], C and B bits) |
ARMV8_CP15_C10_PRRR_TR6_STRONGLY_ORDERED = (0 shl 12);
|
Primary TEX mapping for memory attributes 6 (The value of the TEX[0], C and B bits) |
ARMV8_CP15_C10_PRRR_TR6_DEVICE = (1 shl 12);
|
Primary TEX mapping for memory attributes 6 (The value of the TEX[0], C and B bits) |
ARMV8_CP15_C10_PRRR_TR6_NORMAL = (2 shl 12);
|
Primary TEX mapping for memory attributes 6 (The value of the TEX[0], C and B bits) |
ARMV8_CP15_C10_PRRR_TR5_STRONGLY_ORDERED = (0 shl 10);
|
Primary TEX mapping for memory attributes 5 (The value of the TEX[0], C and B bits) |
ARMV8_CP15_C10_PRRR_TR5_DEVICE = (1 shl 10);
|
Primary TEX mapping for memory attributes 5 (The value of the TEX[0], C and B bits) |
ARMV8_CP15_C10_PRRR_TR5_NORMAL = (2 shl 10);
|
Primary TEX mapping for memory attributes 5 (The value of the TEX[0], C and B bits) |
ARMV8_CP15_C10_PRRR_TR4_STRONGLY_ORDERED = (0 shl 8);
|
Primary TEX mapping for memory attributes 4 (The value of the TEX[0], C and B bits) |
ARMV8_CP15_C10_PRRR_TR4_DEVICE = (1 shl 8);
|
Primary TEX mapping for memory attributes 4 (The value of the TEX[0], C and B bits) |
ARMV8_CP15_C10_PRRR_TR4_NORMAL = (2 shl 8);
|
Primary TEX mapping for memory attributes 4 (The value of the TEX[0], C and B bits) |
ARMV8_CP15_C10_PRRR_TR3_STRONGLY_ORDERED = (0 shl 6);
|
Primary TEX mapping for memory attributes 3 (The value of the TEX[0], C and B bits) |
ARMV8_CP15_C10_PRRR_TR3_DEVICE = (1 shl 6);
|
Primary TEX mapping for memory attributes 3 (The value of the TEX[0], C and B bits) |
ARMV8_CP15_C10_PRRR_TR3_NORMAL = (2 shl 6);
|
Primary TEX mapping for memory attributes 3 (The value of the TEX[0], C and B bits) |
ARMV8_CP15_C10_PRRR_TR2_STRONGLY_ORDERED = (0 shl 4);
|
Primary TEX mapping for memory attributes 2 (The value of the TEX[0], C and B bits) |
ARMV8_CP15_C10_PRRR_TR2_DEVICE = (1 shl 4);
|
Primary TEX mapping for memory attributes 2 (The value of the TEX[0], C and B bits) |
ARMV8_CP15_C10_PRRR_TR2_NORMAL = (2 shl 4);
|
Primary TEX mapping for memory attributes 2 (The value of the TEX[0], C and B bits) |
ARMV8_CP15_C10_PRRR_TR1_STRONGLY_ORDERED = (0 shl 2);
|
Primary TEX mapping for memory attributes 1 (The value of the TEX[0], C and B bits) |
ARMV8_CP15_C10_PRRR_TR1_DEVICE = (1 shl 2);
|
Primary TEX mapping for memory attributes 1 (The value of the TEX[0], C and B bits) |
ARMV8_CP15_C10_PRRR_TR1_NORMAL = (2 shl 2);
|
Primary TEX mapping for memory attributes 1 (The value of the TEX[0], C and B bits) |
ARMV8_CP15_C10_PRRR_TR0_STRONGLY_ORDERED = (0 shl 0);
|
Primary TEX mapping for memory attributes 0 (The value of the TEX[0], C and B bits) |
ARMV8_CP15_C10_PRRR_TR0_DEVICE = (1 shl 0);
|
Primary TEX mapping for memory attributes 0 (The value of the TEX[0], C and B bits) |
ARMV8_CP15_C10_PRRR_TR0_NORMAL = (2 shl 0);
|
Primary TEX mapping for memory attributes 0 (The value of the TEX[0], C and B bits) |
ARMV8_CP15_C10_PRRR_MASK = ARMV8_CP15_C10_PRRR_NOS7 or ARMV8_CP15_C10_PRRR_NOS6 or ARMV8_CP15_C10_PRRR_NOS5 or ARMV8_CP15_C10_PRRR_NOS4
|
TR0 to TR7 Inner Shareable |
or ARMV8_CP15_C10_PRRR_NOS3 or ARMV8_CP15_C10_PRRR_NOS2 or ARMV8_CP15_C10_PRRR_NOS1 or ARMV8_CP15_C10_PRRR_NOS0
|
|
or ARMV8_CP15_C10_PRRR_NS1 or ARMV8_CP15_C10_PRRR_DS1
|
S bit controls Shareable for Normal and Device memory |
or ARMV8_CP15_C10_PRRR_TR0_STRONGLY_ORDERED
|
TR0 is Strongly Ordered |
or ARMV8_CP15_C10_PRRR_TR1_NORMAL or ARMV8_CP15_C10_PRRR_TR2_NORMAL or ARMV8_CP15_C10_PRRR_TR3_NORMAL
|
TR1/2/3 are Normal |
or ARMV8_CP15_C10_PRRR_TR4_DEVICE
|
TR4 is Device |
or ARMV8_CP15_C10_PRRR_TR7_NORMAL;
|
TR7 is Normal |
ARMv8 CP15 C10 normal memory remap
ARMV8_CP15_C10_NMRR_* ARMV8_CP15_C10_NMRR_OR7_NONCACHED = (0 shl 30);
|
Outer Cacheable property mapping for memory attributes 7, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR7_WRITE_ALLOCATE = (1 shl 30);
|
Outer Cacheable property mapping for memory attributes 7, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR7_WRITE_THROUGH = (2 shl 30);
|
Outer Cacheable property mapping for memory attributes 7, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR7_WRITE_BACK = (3 shl 30);
|
Outer Cacheable property mapping for memory attributes 7, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR6_NONCACHED = (0 shl 28);
|
Outer Cacheable property mapping for memory attributes 6, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR6_WRITE_ALLOCATE = (1 shl 28);
|
Outer Cacheable property mapping for memory attributes 6, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR6_WRITE_THROUGH = (2 shl 28);
|
Outer Cacheable property mapping for memory attributes 6, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR6_WRITE_BACK = (3 shl 28);
|
Outer Cacheable property mapping for memory attributes 6, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR5_NONCACHED = (0 shl 26);
|
Outer Cacheable property mapping for memory attributes 5, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR5_WRITE_ALLOCATE = (1 shl 26);
|
Outer Cacheable property mapping for memory attributes 5, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR5_WRITE_THROUGH = (2 shl 26);
|
Outer Cacheable property mapping for memory attributes 5, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR5_WRITE_BACK = (3 shl 26);
|
Outer Cacheable property mapping for memory attributes 5, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR4_NONCACHED = (0 shl 24);
|
Outer Cacheable property mapping for memory attributes 4, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR4_WRITE_ALLOCATE = (1 shl 24);
|
Outer Cacheable property mapping for memory attributes 4, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR4_WRITE_THROUGH = (2 shl 24);
|
Outer Cacheable property mapping for memory attributes 4, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR4_WRITE_BACK = (3 shl 24);
|
Outer Cacheable property mapping for memory attributes 4, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR3_NONCACHED = (0 shl 22);
|
Outer Cacheable property mapping for memory attributes 3, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR3_WRITE_ALLOCATE = (1 shl 22);
|
Outer Cacheable property mapping for memory attributes 3, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR3_WRITE_THROUGH = (2 shl 22);
|
Outer Cacheable property mapping for memory attributes 3, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR3_WRITE_BACK = (3 shl 22);
|
Outer Cacheable property mapping for memory attributes 3, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR2_NONCACHED = (0 shl 20);
|
Outer Cacheable property mapping for memory attributes 2, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR2_WRITE_ALLOCATE = (1 shl 20);
|
Outer Cacheable property mapping for memory attributes 2, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR2_WRITE_THROUGH = (2 shl 20);
|
Outer Cacheable property mapping for memory attributes 2, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR2_WRITE_BACK = (3 shl 20);
|
Outer Cacheable property mapping for memory attributes 2, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR1_NONCACHED = (0 shl 18);
|
Outer Cacheable property mapping for memory attributes 1, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR1_WRITE_ALLOCATE = (1 shl 18);
|
Outer Cacheable property mapping for memory attributes 1, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR1_WRITE_THROUGH = (2 shl 18);
|
Outer Cacheable property mapping for memory attributes 1, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR1_WRITE_BACK = (3 shl 18);
|
Outer Cacheable property mapping for memory attributes 1, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR0_NONCACHED = (0 shl 16);
|
Outer Cacheable property mapping for memory attributes 0, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR0_WRITE_ALLOCATE = (1 shl 16);
|
Outer Cacheable property mapping for memory attributes 0, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR0_WRITE_THROUGH = (2 shl 16);
|
Outer Cacheable property mapping for memory attributes 0, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_OR0_WRITE_BACK = (3 shl 16);
|
Outer Cacheable property mapping for memory attributes 0, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR7_NONCACHED = (0 shl 14);
|
Inner Cacheable property mapping for memory attributes 7, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR7_WRITE_ALLOCATE = (1 shl 14);
|
Inner Cacheable property mapping for memory attributes 7, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR7_WRITE_THROUGH = (2 shl 14);
|
Inner Cacheable property mapping for memory attributes 7, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR7_WRITE_BACK = (3 shl 14);
|
Inner Cacheable property mapping for memory attributes 7, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR6_NONCACHED = (0 shl 12);
|
Inner Cacheable property mapping for memory attributes 6, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR6_WRITE_ALLOCATE = (1 shl 12);
|
Inner Cacheable property mapping for memory attributes 6, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR6_WRITE_THROUGH = (2 shl 12);
|
Inner Cacheable property mapping for memory attributes 6, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR6_WRITE_BACK = (3 shl 12);
|
Inner Cacheable property mapping for memory attributes 6, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR5_NONCACHED = (0 shl 10);
|
Inner Cacheable property mapping for memory attributes 5, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR5_WRITE_ALLOCATE = (1 shl 10);
|
Inner Cacheable property mapping for memory attributes 5, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR5_WRITE_THROUGH = (2 shl 10);
|
Inner Cacheable property mapping for memory attributes 5, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR5_WRITE_BACK = (3 shl 10);
|
Inner Cacheable property mapping for memory attributes 5, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR4_NONCACHED = (0 shl 8);
|
Inner Cacheable property mapping for memory attributes 4, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR4_WRITE_ALLOCATE = (1 shl 8);
|
Inner Cacheable property mapping for memory attributes 4, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR4_WRITE_THROUGH = (2 shl 8);
|
Inner Cacheable property mapping for memory attributes 4, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR4_WRITE_BACK = (3 shl 8);
|
Inner Cacheable property mapping for memory attributes 4, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR3_NONCACHED = (0 shl 6);
|
Inner Cacheable property mapping for memory attributes 3, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR3_WRITE_ALLOCATE = (1 shl 6);
|
Inner Cacheable property mapping for memory attributes 3, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR3_WRITE_THROUGH = (2 shl 6);
|
Inner Cacheable property mapping for memory attributes 3, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR3_WRITE_BACK = (3 shl 6);
|
Inner Cacheable property mapping for memory attributes 3, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR2_NONCACHED = (0 shl 4);
|
Inner Cacheable property mapping for memory attributes 2, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR2_WRITE_ALLOCATE = (1 shl 4);
|
Inner Cacheable property mapping for memory attributes 2, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR2_WRITE_THROUGH = (2 shl 4);
|
Inner Cacheable property mapping for memory attributes 2, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR2_WRITE_BACK = (3 shl 4);
|
Inner Cacheable property mapping for memory attributes 2, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR1_NONCACHED = (0 shl 2);
|
Inner Cacheable property mapping for memory attributes 1, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR1_WRITE_ALLOCATE = (1 shl 2);
|
Inner Cacheable property mapping for memory attributes 1, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR1_WRITE_THROUGH = (2 shl 2);
|
Inner Cacheable property mapping for memory attributes 1, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR1_WRITE_BACK = (3 shl 2);
|
Inner Cacheable property mapping for memory attributes 1, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR0_NONCACHED = (0 shl 0);
|
Inner Cacheable property mapping for memory attributes 0, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR0_WRITE_ALLOCATE = (1 shl 0);
|
Inner Cacheable property mapping for memory attributes 0, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR0_WRITE_THROUGH = (2 shl 0);
|
Inner Cacheable property mapping for memory attributes 0, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_IR0_WRITE_BACK = (3 shl 0);
|
Inner Cacheable property mapping for memory attributes 0, if the region is mapped as Normal memory by the PRRR (The value of the TEX[0], C and B bits). |
ARMV8_CP15_C10_NMRR_MASK = ARMV8_CP15_C10_NMRR_IR1_NONCACHED or ARMV8_CP15_C10_NMRR_OR1_NONCACHED
|
IR1 and OR1 are Non Cached |
or ARMV8_CP15_C10_NMRR_IR2_WRITE_THROUGH or ARMV8_CP15_C10_NMRR_OR2_WRITE_THROUGH
|
IR2 and OR2 are Write Through |
or ARMV8_CP15_C10_NMRR_IR3_WRITE_BACK or ARMV8_CP15_C10_NMRR_OR3_WRITE_BACK
|
IR3 and OR3 are Write Back |
or ARMV8_CP15_C10_NMRR_IR7_WRITE_ALLOCATE or ARMV8_CP15_C10_NMRR_OR7_WRITE_ALLOCATE;
|
IR7 and OR7 are Write Allocate |
ARMv8 CP15 C14 generic timer control
ARMV8_CP15_C14_CNT_CTL_* ARMV8_CP15_C14_CNT_CTL_ISTATUS = (1 shl 2);
|
The status of the timer (Read Only)(When set the timer condition is asserted) |
ARMV8_CP15_C14_CNT_CTL_IMASK = (1 shl 1);
|
Timer output signal mask bit (When set the timer output signal is masked) |
ARMV8_CP15_C14_CNT_CTL_ENABLE = (1 shl 0);
|
Enables the timer (When set the timer output signal is enabled) |
ARMv8 CP15 C14 generic timer
ARMV8_CP15_C14_* ARMV8_CP15_C14_CNTP = 0;
|
Physical Timer (Secure or Non Secure depending on the NS bit of the SCR) |
ARMV8_CP15_C14_CNTV = 1;
|
Virtual Timer |
ARMV8_CP15_C14_CNTH = 2;
|
Hypervisor Timer (Only available from HYP mode) |
ARMv8 floating-point exception
ARMV8_FPEXC_* ARMV8_FPEXC_EN = (1 shl 30);
|
Floating-point system is enabled and operates normally if set to 1 (Default 0) |
ARMV8_FPEXC_EX = (1 shl 31);
|
If EX is set to 0 then only FPSCR and FPEXC need to be preseved on a context switch (Default 0) |
ARMv8 level one descriptor type
ARMV8_L1D_TYPE_* | See page B3-7 of the ARMv7 Architecture Reference Manual | |
| See page B3-8 of the ARMv7 Architecture Reference Manual | |
| Level One Page Table contains 4096 32bit (4 byte) entries for a total size of 16KB | |
ARMV8_L1D_TYPE_COARSE = 1;
|
The entry points to a 1MB second-level page table. See page 6-40. |
ARMV8_L1D_TYPE_SECTION = 2;
|
The entry points to a either a 1MB Section of memory or a 16MB Supersection of memory |
ARMV8_L1D_TYPE_SUPERSECTION = 2;
|
Bit[18] of the descriptor selects between a Section and a Supersection |
ARMv8 level one descriptor flag
ARMV8_L1D_FLAG_* | See page B3-9 of the ARMv7 Architecture Reference Manual | |
ARMV8_L1D_FLAG_COARSE_NS = (1 shl 3);
|
NS (Non Secure) Attribute bit to enable the support of TrustZone |
ARMV8_L1D_FLAG_SECTION_NS = (1 shl 19);
|
NS (Non Secure) Attribute bit to enable the support of TrustZone |
ARMV8_L1D_FLAG_SUPERSECTION = (1 shl 18);
|
The descriptor is a 16MB Supersection instead of a 1MB Section (Section Only) |
ARMV8_L1D_FLAG_NOT_GLOBAL = (1 shl 17);
|
The Not-Global (nG) bit, determines if the translation is marked as global (0), or process-specific (1) (Section Only). |
ARMV8_L1D_FLAG_SHARED = (1 shl 16);
|
The Shared (S) bit, determines if the translation is for Non-Shared (0), or Shared (1) memory. This only applies to Normal memory regions.
Device memory can be Shared or Non-Shared as determined by the TEX bits and the C and B bits (Section Only). |
ARMV8_L1D_FLAG_AP2 = (1 shl 15);
|
The access permissions extension (AP2) bit, provides an extra access permission bit (Section Only). |
ARMV8_L1D_FLAG_IMP = (1 shl 9);
|
The meaning of this bit is IMPLEMENTATION DEFINED |
ARMV8_L1D_FLAG_XN = (1 shl 4);
|
The Execute-Never (XN) bit, determines if the region is Executable (0) or Not-executable(1) (Section Only). |
ARMV8_L1D_FLAG_C = (1 shl 3);
|
Cacheable (C) bit (Section Only) |
ARMV8_L1D_FLAG_B = (1 shl 2);
|
Bufferable (B) bit (Section Only) |
ARMv8 level one descriptor mask
ARMV8_L1D_*_MASK | See page B3-8 of the ARMv7 Architecture Reference Manual | |
ARMV8_L1D_COARSE_BASE_MASK = $FFFFFC00;
|
|
ARMV8_L1D_SECTION_BASE_MASK = $FFF00000;
|
|
ARMV8_L1D_SUPERSECTION_BASE_MASK = $FF000000;
|
|
ARMV8_L1D_DOMAIN_MASK = ($F shl 5);
|
Security Domain of the Descriptor |
ARMV8_L1D_TEX_MASK = (7 shl 12);
|
Type extension field bits (Section Only) |
ARMV8_L1D_AP_MASK = (3 shl 10);
|
Access permission bits (Section Only) |
ARMv8 level one descriptor TEX value
ARMV8_L1D_TEX* | See page B3-32 of the ARMv7 Architecture Reference Manual (Section Only) | |
ARMV8_L1D_TEX0 = (0 shl 12);
|
|
ARMV8_L1D_TEX1 = (1 shl 12);
|
|
ARMV8_L1D_TEX2 = (2 shl 12);
|
|
ARMV8_L1D_TEX4 = (4 shl 12);
|
Only used for Cacheable memory values |
ARMV8_L1D_TEX5 = (5 shl 12);
|
Only used for Cacheable memory values |
ARMV8_L1D_TEX6 = (6 shl 12);
|
Only used for Cacheable memory values |
ARMV8_L1D_TEX7 = (7 shl 12);
|
Only used for Cacheable memory values |
ARMv8 level one descriptor AP value
ARMV8_L1D_AP* | See page B3-28 of the ARMv7 Architecture Reference Manual (Section Only) | |
ARMV8_L1D_AP0 = (0 shl 10);
|
|
ARMV8_L1D_AP1 = (1 shl 10);
|
|
ARMV8_L1D_AP2 = (2 shl 10);
|
|
ARMV8_L1D_AP3 = (3 shl 10);
|
|
ARMv8 level one descriptor permission value
ARMV8_L1D_ACCESS_* | See page B3-28 of the ARMv7 Architecture Reference Manual | |
| This is not the full set of permissions as Ultibo always runs in priviledged mode | |
| The XN bit can also be applied to control whether memory regions are executable or not | |
ARMV8_L1D_ACCESS_NONE = ARMV8_L1D_AP0;
|
No Access for both Privileged and Unprivileged code |
ARMV8_L1D_ACCESS_READONLY = ARMV8_L1D_FLAG_AP2 or ARMV8_L1D_AP3;
|
Read-Only for both Privileged and Unprivileged code |
ARMV8_L1D_ACCESS_READWRITE = ARMV8_L1D_AP3;
|
Read-Write for both Privileged and Unprivileged code |
ARMv8 level one descriptor cache value
ARMV8_L1D_CACHE_* | See page B3-32 of the ARMv7 Architecture Reference Manual | |
ARMV8_L1D_CACHE_STRONGLY_ORDERED = ARMV8_L1D_TEX0;
|
Strongly Ordered. (Always Shared) |
ARMV8_L1D_CACHE_SHARED_DEVICE = ARMV8_L1D_TEX0 or ARMV8_L1D_FLAG_B;
|
Device. (Always Shared) |
ARMV8_L1D_CACHE_NORMAL_WRITE_THROUGH = ARMV8_L1D_TEX0 or ARMV8_L1D_FLAG_C;
|
Normal. Write Through (Shared if S bit set) |
ARMV8_L1D_CACHE_NORMAL_WRITE_BACK = ARMV8_L1D_TEX0 or ARMV8_L1D_FLAG_C or ARMV8_L1D_FLAG_B;
|
Normal. Write Back (Shared if S bit set) |
ARMV8_L1D_CACHE_NORMAL_NONCACHED = ARMV8_L1D_TEX1;
|
Normal. Noncacheable (Shared if S bit set) |
ARMV8_L1D_CACHE_NORMAL_WRITE_ALLOCATE = ARMV8_L1D_TEX1 or ARMV8_L1D_FLAG_C or ARMV8_L1D_FLAG_B;
|
Normal. Write Allocate (Shared if S bit set) |
ARMV8_L1D_CACHE_NONSHARED_DEVICE = ARMV8_L1D_TEX2;
|
Device. (Not Shared |
ARMv8 level one descriptor cacheable memory value
ARMV8_L1D_CACHE_CACHEABLE_* | Cacheable Memory | |
ARMV8_L1D_CACHE_CACHEABLE_OUTER_NONCACHED = ARMV8_L1D_TEX4;
|
Outer Normal Noncacheable (Shared if S bit set) |
ARMV8_L1D_CACHE_CACHEABLE_OUTER_WRITE_ALLOCATE = ARMV8_L1D_TEX5;
|
Outer Normal Write Allocate (Shared if S bit set) |
ARMV8_L1D_CACHE_CACHEABLE_OUTER_WRITE_THROUGH = ARMV8_L1D_TEX6;
|
Outer Normal Write Through (Shared if S bit set) |
ARMV8_L1D_CACHE_CACHEABLE_OUTER_WRITE_BACK = ARMV8_L1D_TEX7;
|
Outer Normal Write Back (Shared if S bit set) |
ARMV8_L1D_CACHE_CACHEABLE_INNER_NONCACHED = ARMV8_L1D_TEX4;
|
Inner Normal Noncacheable (Shared if S bit set) |
ARMV8_L1D_CACHE_CACHEABLE_INNER_WRITE_ALLOCATE = ARMV8_L1D_TEX4 or ARMV8_L1D_FLAG_B;
|
Inner Normal Write Allocate (Shared if S bit set) |
ARMV8_L1D_CACHE_CACHEABLE_INNER_WRITE_THROUGH = ARMV8_L1D_TEX4 or ARMV8_L1D_FLAG_C;
|
Inner Normal Write Through (Shared if S bit set) |
ARMV8_L1D_CACHE_CACHEABLE_INNER_WRITE_BACK = ARMV8_L1D_TEX4 or ARMV8_L1D_FLAG_C or ARMV8_L1D_FLAG_B;
|
Inner Normal Write Back (Shared if S bit set) |
ARMv8 level one descriptor cache TEX remap value
ARMV8_L1D_CACHE_REMAP_* | TEX Remap Enabled | |
| See page B3-34 of the ARMv7 Architecture Reference Manual (These values are from Linux) | |
ARMV8_L1D_CACHE_REMAP_STRONGLY_ORDERED = ARMV8_L1D_TEX0;
|
TR0 - Strongly Ordered |
ARMV8_L1D_CACHE_REMAP_NORMAL_NONCACHED = ARMV8_L1D_TEX0 or ARMV8_L1D_FLAG_B;
|
TR1 - Normal Noncacheable (Inner Shared if S bit set) |
ARMV8_L1D_CACHE_REMAP_NORMAL_WRITE_THROUGH = ARMV8_L1D_TEX0 or ARMV8_L1D_FLAG_C;
|
TR2 - Normal Write Through (Inner Shared if S bit set) |
ARMV8_L1D_CACHE_REMAP_NORMAL_WRITE_BACK = ARMV8_L1D_TEX0 or ARMV8_L1D_FLAG_C or ARMV8_L1D_FLAG_B;
|
TR3 - Normal Write Back (Inner Shared if S bit set) |
ARMV8_L1D_CACHE_REMAP_DEVICE = ARMV8_L1D_TEX1;
|
TR4 - Device |
ARMV8_L1D_CACHE_REMAP_UNUSED = ARMV8_L1D_TEX1 or ARMV8_L1D_FLAG_B;
|
TR5 - Not currently used |
ARMV8_L1D_CACHE_REMAP_RESERVED = ARMV8_L1D_TEX1 or ARMV8_L1D_FLAG_C;
|
TR6 - Implementation Defined |
ARMV8_L1D_CACHE_REMAP_NORMAL_WRITE_ALLOCATE = ARMV8_L1D_TEX1 or ARMV8_L1D_FLAG_C or ARMV8_L1D_FLAG_B;
|
TR7 - Normal Write Allocate (Inner Shared if S bit set) |
ARMv8 level two descriptor type
ARMV8_L2D_TYPE_* | See page B3-10 of the ARMv7 Architecture Reference Manual | |
| Level Two Page Table contains 256 32bit (4 byte) entries for a total size of 1KB | |
ARMV8_L2D_TYPE_LARGE = 1;
|
The entry points to a 64KB Large page in memory |
ARMV8_L2D_TYPE_SMALL = 2;
|
The entry points to a 4KB Extended small page in memory. Bit[0] of the entry is the XN (Execute Never) bit for the entry. |
ARMv8 level two descriptor flag
ARMV8_L2D_FLAG_* | See page B3-10 of the ARMv7 Architecture Reference Manual | |
ARMV8_L2D_FLAG_LARGE_XN = (1 shl 15);
|
The Execute-Never (XN) bit, determines if the region is Executable (0) or Not-executable(1). |
ARMV8_L2D_FLAG_SMALL_XN = (1 shl 0);
|
The Execute-Never (XN) bit, determines if the region is Executable (0) or Not-executable(1). |
ARMV8_L2D_FLAG_NOT_GLOBAL = (1 shl 11);
|
The Not-Global (nG) bit, determines if the translation is marked as global (0), or process-specific (1). |
ARMV8_L2D_FLAG_SHARED = (1 shl 10);
|
The Shared (S) bit, determines if the translation is for Non-Shared (0), or Shared (1) memory. This only applies to Normal memory regions.
Device memory can be Shared or Non-Shared as determined by the TEX bits and the C and B bits. |
ARMV8_L2D_FLAG_AP2 = (1 shl 9);.
|
The access permissions extension (APX) bit, provides an extra access permission bit |
ARMV8_L2D_FLAG_C = (1 shl 3);
|
Cacheable (C) bit |
ARMV8_L2D_FLAG_B = (1 shl 2);
|
Bufferable (B) bit |
ARMv8 level two descriptor mask
ARMV8_L2D_*_MASK | See page B3-10 of the ARMv7 Architecture Reference Manual | |
ARMV8_L2D_LARGE_BASE_MASK = $FFFF0000;
|
|
ARMV8_L2D_SMALL_BASE_MASK = $FFFFF000;
|
|
ARMV8_L2D_LARGE_TEX_MASK = (7 shl 12);
|
Type extension field bits |
ARMV8_L2D_SMALL_TEX_MASK = (7 shl 6);
|
Type extension field bits |
ARMV8_L2D_AP_MASK = (3 shl 4);
|
Access permission bits |
ARMv8 level two descriptor large TEX value
ARMV8_L2D_LARGE_TEX* | See page B3-32 of the ARMv7 Architecture Reference Manual | |
ARMV8_L2D_LARGE_TEX0 = (0 shl 12);
|
|
ARMV8_L2D_LARGE_TEX1 = (1 shl 12);
|
|
ARMV8_L2D_LARGE_TEX2 = (2 shl 12);
|
|
ARMV8_L2D_LARGE_TEX4 = (4 shl 12);
|
|
ARMV8_L2D_LARGE_TEX5 = (5 shl 12);
|
Only used for Cacheable memory values |
ARMV8_L2D_LARGE_TEX6 = (6 shl 12);
|
Only used for Cacheable memory values |
ARMV8_L2D_LARGE_TEX7 = (7 shl 12);
|
Only used for Cacheable memory values |
ARMv8 level two descriptor small TEX value
ARMV8_L2D_SMALL_TEX* | See page B3-32 of the ARMv7 Architecture Reference Manual | |
ARMV8_L2D_SMALL_TEX0 = (0 shl 6);
|
|
ARMV8_L2D_SMALL_TEX1 = (1 shl 6);
|
|
ARMV8_L2D_SMALL_TEX2 = (2 shl 6);
|
|
ARMV8_L2D_SMALL_TEX4 = (4 shl 6);
|
|
ARMV8_L2D_SMALL_TEX5 = (5 shl 6);
|
Only used for Cacheable memory values |
ARMV8_L2D_SMALL_TEX6 = (6 shl 6);
|
Only used for Cacheable memory values |
ARMV8_L2D_SMALL_TEX7 = (7 shl 6);
|
Only used for Cacheable memory values |
ARMv8 level two descriptor AP value
ARMV8_L2D_AP* | See page B3-28 of the ARMv7 Architecture Reference Manual | |
ARMV8_L2D_AP0 = (0 shl 4);
|
|
ARMV8_L2D_AP1 = (1 shl 4);
|
|
ARMV8_L2D_AP2 = (2 shl 4);
|
|
ARMV8_L2D_AP3 = (3 shl 4);
|
|
ARMv8 level two descriptor permission value
ARMV8_L2D_ACCESS_* | See page B3-28 of the ARMv7 Architecture Reference Manual | |
| This is not the full set of permissions as Ultibo always runs in priviledged mode | |
| The XN bit can also be applied to control whether memory regions are executable or not | |
ARMV8_L2D_ACCESS_NONE = ARMV8_L2D_AP0;
|
No Access for both Privileged and Unprivileged code |
ARMV8_L2D_ACCESS_READONLY = ARMV8_L2D_FLAG_AP2 or ARMV8_L2D_AP3;
|
Read-Only for both Privileged and Unprivileged code |
ARMV8_L2D_ACCESS_READWRITE = ARMV8_L2D_AP3;
|
Read-Write for both Privileged and Unprivileged code |
ARMv8 level two descriptor large cache value
ARMV8_L2D_LARGE_CACHE_* | See page B3-32 of the ARMv7 Architecture Reference Manual | |
ARMV8_L2D_LARGE_CACHE_STRONGLY_ORDERED = ARMV8_L2D_LARGE_TEX0;
|
Strongly Ordered. (Always Shared) |
ARMV8_L2D_LARGE_CACHE_SHARED_DEVICE = ARMV8_L2D_LARGE_TEX0 or ARMV8_L2D_FLAG_B;
|
Device. (Always Shared) |
ARMV8_L2D_LARGE_CACHE_NORMAL_WRITE_THROUGH = ARMV8_L2D_LARGE_TEX0 or ARMV8_L2D_FLAG_C;
|
Normal. Write Through (Shared if S bit set) |
ARMV8_L2D_LARGE_CACHE_NORMAL_WRITE_BACK = ARMV8_L2D_LARGE_TEX0 or ARMV8_L2D_FLAG_C or ARMV8_L2D_FLAG_B;
|
Normal. Write Back (Shared if S bit set) |
ARMV8_L2D_LARGE_CACHE_NORMAL_NONCACHED = ARMV8_L2D_LARGE_TEX1;
|
Normal. Noncacheable (Shared if S bit set) |
ARMV8_L2D_LARGE_CACHE_NORMAL_WRITE_ALLOCATE = ARMV8_L2D_LARGE_TEX1 or ARMV8_L2D_FLAG_C or ARMV8_L2D_FLAG_B;
|
Normal. Write Allocate (Shared if S bit set) |
ARMV8_L2D_LARGE_CACHE_NONSHARED_DEVICE = ARMV8_L2D_LARGE_TEX2;
|
Device. (Not Shared) |
ARMv8 level two descriptor large cacheable memory value
ARMV8_L2D_LARGE_CACHE_CACHEABLE_* | Cacheable Memory | |
| See page B3-32 of the ARMv7 Architecture Reference Manual | |
ARMV8_L2D_LARGE_CACHE_CACHEABLE_OUTER_NONCACHED = ARMV8_L2D_LARGE_TEX4;
|
Outer Normal Noncacheable (Shared if S bit set) |
ARMV8_L2D_LARGE_CACHE_CACHEABLE_OUTER_WRITE_ALLOCATE = ARMV8_L2D_LARGE_TEX5;
|
Outer Normal Write Allocate (Shared if S bit set) |
ARMV8_L2D_LARGE_CACHE_CACHEABLE_OUTER_WRITE_THROUGH = ARMV8_L2D_LARGE_TEX6;
|
Outer Normal Write Through (Shared if S bit set) |
ARMV8_L2D_LARGE_CACHE_CACHEABLE_OUTER_WRITE_BACK = ARMV8_L2D_LARGE_TEX7;
|
Outer Normal Write Back (Shared if S bit set) |
ARMV8_L2D_LARGE_CACHE_CACHEABLE_INNER_NONCACHED = ARMV8_L2D_LARGE_TEX4;
|
Inner Normal Noncacheable (Shared if S bit set) |
ARMV8_L2D_LARGE_CACHE_CACHEABLE_INNER_WRITE_ALLOCATE = ARMV8_L2D_LARGE_TEX4 or ARMV8_L2D_FLAG_B;
|
Inner Normal Write Allocate (Shared if S bit set) |
ARMV8_L2D_LARGE_CACHE_CACHEABLE_INNER_WRITE_THROUGH = ARMV8_L2D_LARGE_TEX4 or ARMV8_L2D_FLAG_C;
|
Inner Normal Write Through (Shared if S bit set) |
ARMV8_L2D_LARGE_CACHE_CACHEABLE_INNER_WRITE_BACK = ARMV8_L2D_LARGE_TEX4 or ARMV8_L2D_FLAG_C or ARMV8_L2D_FLAG_B;
|
Inner Normal Write Back (Shared if S bit set) |
ARMv8 level two descriptor large cache TEX remap value
ARMV8_L2D_LARGE_CACHE_REMAP_* | TEX Remap Enabled | |
| See page B3-32 of the ARMv7 Architecture Reference Manual (These values are from Linux) | |
ARMV8_L2D_LARGE_CACHE_REMAP_STRONGLY_ORDERED = ARMV8_L2D_LARGE_TEX0;
|
TR0 - Strongly Ordered |
ARMV8_L2D_LARGE_CACHE_REMAP_NORMAL_NONCACHED = ARMV8_L2D_LARGE_TEX0 or ARMV8_L2D_FLAG_B;
|
TR1 - Normal Noncacheable (Inner Shared if S bit set) |
ARMV8_L2D_LARGE_CACHE_REMAP_NORMAL_WRITE_THROUGH = ARMV8_L2D_LARGE_TEX0 or ARMV8_L2D_FLAG_C;
|
TR2 - Normal Write Through (Inner Shared if S bit set) |
ARMV8_L2D_LARGE_CACHE_REMAP_NORMAL_WRITE_BACK = ARMV8_L2D_LARGE_TEX0 or ARMV8_L2D_FLAG_C or ARMV8_L2D_FLAG_B;
|
TR3 - Normal Write Back (Inner Shared if S bit set) |
ARMV8_L2D_LARGE_CACHE_REMAP_DEVICE = ARMV8_L2D_LARGE_TEX1;
|
TR4 - Device |
ARMV8_L2D_LARGE_CACHE_REMAP_UNUSED = ARMV8_L2D_LARGE_TEX1 or ARMV8_L2D_FLAG_B;
|
TR5 - Not currently used |
ARMV8_L2D_LARGE_CACHE_REMAP_RESERVED = ARMV8_L2D_LARGE_TEX1 or ARMV8_L2D_FLAG_C;
|
TR6 - Implementation Defined |
ARMV8_L2D_LARGE_CACHE_REMAP_NORMAL_WRITE_ALLOCATE = ARMV8_L2D_LARGE_TEX1 or ARMV8_L2D_FLAG_C or ARMV8_L2D_FLAG_B;
|
TR7 - Normal Write Allocate (Inner Shared if S bit set) |
ARMv8 level two descriptor small cache value
ARMV8_L2D_SMALL_CACHE_* | See page B3-32 of the ARMv7 Architecture Reference Manual | |
ARMV8_L2D_SMALL_CACHE_STRONGLY_ORDERED = ARMV8_L2D_SMALL_TEX0;
|
Strongly Ordered. (Always Shared) |
ARMV8_L2D_SMALL_CACHE_SHARED_DEVICE = ARMV8_L2D_SMALL_TEX0 or ARMV8_L2D_FLAG_B;
|
Device. (Always Shared) |
ARMV8_L2D_SMALL_CACHE_NORMAL_WRITE_THROUGH = ARMV8_L2D_SMALL_TEX0 or ARMV8_L2D_FLAG_C;
|
Normal. Write Through (Shared if S bit set) |
ARMV8_L2D_SMALL_CACHE_NORMAL_WRITE_BACK = ARMV8_L2D_SMALL_TEX0 or ARMV8_L2D_FLAG_C or ARMV8_L2D_FLAG_B;
|
Normal. Write Back (Shared if S bit set) |
ARMV8_L2D_SMALL_CACHE_NORMAL_NONCACHED = ARMV8_L2D_SMALL_TEX1;
|
Normal. Noncacheable (Shared if S bit set) |
ARMV8_L2D_SMALL_CACHE_NORMAL_WRITE_ALLOCATE = ARMV8_L2D_SMALL_TEX1 or ARMV8_L2D_FLAG_C or ARMV8_L2D_FLAG_B;
|
Normal. Write Allocate (Shared if S bit set) |
ARMV8_L2D_SMALL_CACHE_NONSHARED_DEVICE = ARMV8_L2D_SMALL_TEX2;
|
Device. (Not Shared) |
ARMv8 level two descriptor small cacheable memory value
ARMV8_L2D_SMALL_CACHE_CACHEABLE_* | Cacheable Memory | |
| See page B3-32 of the ARMv7 Architecture Reference Manual | |
ARMV8_L2D_SMALL_CACHE_CACHEABLE_OUTER_NONCACHED = ARMV8_L2D_SMALL_TEX4;
|
Outer Normal Noncacheable (Shared if S bit set) |
ARMV8_L2D_SMALL_CACHE_CACHEABLE_OUTER_WRITE_ALLOCATE = ARMV8_L2D_SMALL_TEX5;
|
Outer Normal Write Allocate (Shared if S bit set) |
ARMV8_L2D_SMALL_CACHE_CACHEABLE_OUTER_WRITE_THROUGH = ARMV8_L2D_SMALL_TEX6;
|
Outer Normal Write Through (Shared if S bit set) |
ARMV8_L2D_SMALL_CACHE_CACHEABLE_OUTER_WRITE_BACK = ARMV8_L2D_SMALL_TEX7;
|
Outer Normal Write Back (Shared if S bit set) |
ARMV8_L2D_SMALL_CACHE_CACHEABLE_INNER_NONCACHED = ARMV8_L2D_SMALL_TEX4;
|
Inner Normal Noncacheable (Shared if S bit set) |
ARMV8_L2D_SMALL_CACHE_CACHEABLE_INNER_WRITE_ALLOCATE = ARMV8_L2D_SMALL_TEX4 or ARMV8_L2D_FLAG_B;
|
Inner Normal Write Allocate (Shared if S bit set) |
ARMV8_L2D_SMALL_CACHE_CACHEABLE_INNER_WRITE_THROUGH = ARMV8_L2D_SMALL_TEX4 or ARMV8_L2D_FLAG_C;
|
Inner Normal Write Through (Shared if S bit set) |
ARMV8_L2D_SMALL_CACHE_CACHEABLE_INNER_WRITE_BACK = ARMV8_L2D_SMALL_TEX4 or ARMV8_L2D_FLAG_C or ARMV8_L2D_FLAG_B;
|
Inner Normal Write Back (Shared if S bit set) |
ARMv8 level two descriptor small cache TEX remap value
ARMV8_L2D_SMALL_CACHE_REMAP_* | TEX Remap Enabled | |
| See page B3-32 of the ARMv7 Architecture Reference Manual (These values are from Linux) | |
ARMV8_L2D_SMALL_CACHE_REMAP_STRONGLY_ORDERED = ARMV8_L2D_SMALL_TEX0;
|
TR0 - Strongly Ordered |
ARMV8_L2D_SMALL_CACHE_REMAP_NORMAL_NONCACHED = ARMV8_L2D_SMALL_TEX0 or ARMV8_L2D_FLAG_B;
|
TR1 - Normal Noncacheable (Inner Shared if S bit set) |
ARMV8_L2D_SMALL_CACHE_REMAP_NORMAL_WRITE_THROUGH = ARMV8_L2D_SMALL_TEX0 or ARMV8_L2D_FLAG_C;
|
TR2 - Normal Write Through (Inner Shared if S bit set) |
ARMV8_L2D_SMALL_CACHE_REMAP_NORMAL_WRITE_BACK = ARMV8_L2D_SMALL_TEX0 or ARMV8_L2D_FLAG_C or ARMV8_L2D_FLAG_B;
|
TR3 - Normal Write Back (Inner Shared if S bit set) |
ARMV8_L2D_SMALL_CACHE_REMAP_DEVICE = ARMV8_L2D_SMALL_TEX1;
|
TR4 - Device |
ARMV8_L2D_SMALL_CACHE_REMAP_UNUSED = ARMV8_L2D_SMALL_TEX1 or ARMV8_L2D_FLAG_B;
|
TR5 - Not currently used |
ARMV8_L2D_SMALL_CACHE_REMAP_RESERVED = ARMV8_L2D_SMALL_TEX1 or ARMV8_L2D_FLAG_C;
|
TR6 - Implementation Defined |
ARMV8_L2D_SMALL_CACHE_REMAP_NORMAL_WRITE_ALLOCATE = ARMV8_L2D_SMALL_TEX1 or ARMV8_L2D_FLAG_C or ARMV8_L2D_FLAG_B;
|
TR7 - Normal Write Allocate (Inner Shared if S bit set) |
ARMv8 specific constants
ARMV8_* ARMV8_CONTEXT_LENGTH = 50;
|
Length of ARM context switch record in 32 bit words (includes fpexc, fpscr, d0-d15, r0-r12, lr, pc, cpsr) |
Type definitions
ARMv8 page table initialization
TARMv8PageTableInit = procedure;
|
ARMv8 dispatch IRQ
TARMv8DispatchIRQ = function(CPUID:LongWord; Thread:TThreadHandle):TThreadHandle;
|
ARMv8 dispatch FIQ
TARMv8DispatchFIQ = function(CPUID:LongWord; Thread:TThreadHandle):TThreadHandle;
|
ARMv8 dispatch SWI
TARMv8DispatchSWI = function(CPUID:LongWord; Thread:TThreadHandle; Request:PSystemCallRequest):TThreadHandle;
|
Public variables
ARMv8 specific variables
ARMv8Initialized:Boolean;
|
Page table handlers
ARMv8PageTableInitHandler:TARMv8PageTableInit;
|
IRQ handlers
ARMv8DispatchIRQHandler:TARMv8DispatchIRQ;
|
FIQ handlers
ARMv8DispatchFIQHandler:TARMv8DispatchFIQ;
|
SWI handlers
ARMv8DispatchSWIHandler:TARMv8DispatchSWI;
|
Function declarations
Initialization functions
procedure ARMv8Init;
Description: To be documented
| Note | None documented |
|---|
ARMv8 platform functions
procedure ARMv8CPUInit; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
procedure ARMv8FPUInit; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
procedure ARMv8MMUInit;
Description: To be documented
| Note | None documented |
|---|
procedure ARMv8CacheInit; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
procedure ARMv8TimerInit(Frequency:LongWord); assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
procedure ARMv8PageTableInit;
Description: Initialize the Hardware Page Tables before enabling the MMU
| Note | None documented |
|---|
procedure ARMv8SystemCall(Number:LongWord; Param1,Param2,Param3:PtrUInt); assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
function ARMv8CPUGetMode:LongWord; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
function ARMv8CPUGetState:LongWord; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
function ARMv8CPUGetCurrent:LongWord; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
function ARMv8CPUGetMainID:LongWord; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
function ARMv8CPUGetMultiprocessorID:LongWord; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
function ARMv8CPUGetModel:LongWord;
Description: To be documented
| Note | None documented |
|---|
function ARMv8CPUGetRevision:LongWord;
Description: To be documented
| Note | None documented |
|---|
function ARMv8CPUGetDescription:String;
Description: To be documented
| Note | None documented |
|---|
function ARMv8FPUGetState:LongWord; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
function ARMv8L1CacheGetType:LongWord; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
function ARMv8L1DataCacheGetSize:LongWord; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
function ARMv8L1DataCacheGetLineSize:LongWord; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
function ARMv8L1InstructionCacheGetSize:LongWord; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
function ARMv8L1InstructionCacheGetLineSize:LongWord; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
function ARMv8L2CacheGetType:LongWord; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
function ARMv8L2CacheGetSize:LongWord; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
function ARMv8L2CacheGetLineSize:LongWord; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
procedure ARMv8Halt; assembler; nostackframe; public name '_haltproc';
Description: The purpose of the Wait For Interrupt operation is to put the processor in to a low power state
| Note | See Standby mode on page A8-810 of the ARMv7 Architecture Reference Manual |
|---|
procedure ARMv8Pause; assembler; nostackframe;
Description: The purpose of the Wait For Interrupt operation is to put the processor in to a low power state
| Note | See Standby mode on page A8-810 of the ARMv7 Architecture Reference Manual |
|---|
procedure ARMv8SendEvent; assembler; nostackframe;
Description: To be documented
| Note | See Page A8-316 of the ARMv7 Architecture Reference Manual |
|---|
procedure ARMv8WaitForEvent; assembler; nostackframe;
Description: To be documented
| Note | See Page A8-808 of the ARMv7 Architecture Reference Manual |
|---|
procedure ARMv8WaitForInterrupt; assembler; nostackframe;
Description: The purpose of the Wait For Interrupt operation is to put the processor in to a low power state
| Note | See Standby mode on page A8-810 of the ARMv7 Architecture Reference Manual |
|---|
procedure ARMv8DataMemoryBarrier; assembler; nostackframe;
Description: Perform a data memory barrier operation using the c7 (Cache Operations) register of system control coprocessor CP15
| Note | See page A8-90 of the ARMv7 Architecture Reference Manual
Note that this is also available in the FPC RTL as ReadBarrier/WriteBarrier See: \source\rtl\arm\arm.inc
|
|---|
procedure ARMv8DataSynchronizationBarrier; assembler; nostackframe;
Description: Perform a data synchronization barrier operation
| Note | See page A8-92 of the ARMv7 Architecture Reference Manual |
|---|
procedure ARMv8InstructionMemoryBarrier; assembler; nostackframe;
Description: Perform a instruction synchronization barrier operation
| Note | See page A8-102 of the ARMv7 Architecture Reference Manual |
|---|
procedure ARMv8InvalidateTLB; assembler; nostackframe;
Description: Perform an invalidate entire TLB operation using the c8 (TLB Operations) register of system control coprocessor CP15
| Note | See page B3-138 of the ARMv7 Architecture Reference Manual |
|---|
procedure ARMv8InvalidateDataTLB; assembler; nostackframe;
Description: Perform an invalidate data TLB (Unlocked/Data) operation using the c8 (TLB Operations) register of system control coprocessor CP15
| Note | See page B3-138 of the ARMv7 Architecture Reference Manual |
|---|
procedure ARMv8InvalidateInstructionTLB; assembler; nostackframe;
Description: Perform an invalidate instruction TLB (Unlocked/Instruction) operation using the c8 (TLB Operations) register of system control coprocessor CP15
| Note | See page B3-138 of the ARMv7 Architecture Reference Manual |
|---|
procedure ARMv8InvalidateCache; assembler; nostackframe;
Description: Perform an invalidate both caches operation using the c7 (Cache Operations) register of system control coprocessor CP15
| Note | See page B3-127 of the ARMv7 Architecture Reference Manual |
|---|
procedure ARMv8CleanDataCache; assembler; nostackframe;
Description: Perform a clean entire data cache operation
| Note | See page B3-127 of the ARMv7 Architecture Reference Manual |
|---|
procedure ARMv8InvalidateDataCache; assembler; nostackframe;
Description: Perform an invalidate entire data cache operation
| Note | See page B3-127 of the ARMv7 Architecture Reference Manual |
|---|
procedure ARMv8InvalidateL1DataCache; assembler; nostackframe;
Description: Perform an invalidate entire L1 data cache operation
| Note | See page B3-127 of the ARMv7 Architecture Reference Manual |
|---|
procedure ARMv8CleanAndInvalidateDataCache; assembler; nostackframe;
Description: Perform a clean and invalidate entire data cache operation
| Note | See page B3-127 of the ARMv7 Architecture Reference Manual |
|---|
procedure ARMv8InvalidateInstructionCache; assembler; nostackframe;
Description: Perform an invalidate entire instruction cache operation using the c7 (Cache Operations) register of system control coprocessor CP15
| Note | See page B3-127 of the ARMv7 Architecture Reference Manual |
|---|
procedure ARMv8InvalidateDataCacheRange(Address:PtrUInt; Size:LongWord);
Description: Perform an invalidate data cache by MVA to PoC operation
| Note | See page B3-127 of the ARMv7 Architecture Reference Manual |
|---|
procedure ARMv8CleanAndInvalidateDataCacheRange(Address:PtrUInt; Size:LongWord);
Description: Perform a clean and invalidate data cache by MVA to PoC operation
| Note | See page B3-127 of the ARMv7 Architecture Reference Manual |
|---|
procedure ARMv8InvalidateInstructionCacheRange(Address:PtrUInt; Size:LongWord);
Description: Perform an invalidate instruction caches by MVA to PoU operation
| Note | See page B3-127 of the ARMv7 Architecture Reference Manual |
|---|
procedure ARMv8CleanDataCacheSetWay(SetWay:LongWord); assembler; nostackframe;
Description: Perform a clean data cache line by set/way operation
| SetWay | Set/Way/Level will be passed in r0 |
|---|---|
| Note | See page B3-127 of the ARMv7 Architecture Reference Manual |
procedure ARMv8InvalidateDataCacheSetWay(SetWay:LongWord); assembler; nostackframe;
Description: Perform an invalidate data cache line by set/way operation
| SetWay | Set/Way/Level will be passed in r0 |
|---|---|
| Note | See page B3-127 of the ARMv7 Architecture Reference Manual |
procedure ARMv8CleanAndInvalidateDataCacheSetWay(SetWay:LongWord); assembler; nostackframe;
Description: Perform a clean and invalidate data cache line by set/way operation
| SetWay | Set/Way/Level will be passed in r0 |
|---|---|
| Note | See page B3-127 of the ARMv7 Architecture Reference Manual |
procedure ARMv8FlushPrefetchBuffer; assembler; nostackframe;
Description: Perform an Instruction Synchronization Barrier operation
| Note | See page A8-102 of the ARMv7 Architecture Reference Manual |
|---|
procedure ARMv8FlushBranchTargetCache; assembler; nostackframe;
Description: Perform a Flush Entire Branch Target Cache operation
| Note | See page B3-127 of the ARMv7 Architecture Reference Manual |
|---|
procedure ARMv8ContextSwitch(OldStack,NewStack:Pointer; NewThread:TThreadHandle); assembler; nostackframe;
Description: Perform a context switch from one thread to another as a result of a thread yielding, sleeping or waiting
| OldStack | The address to save the stack pointer to for the current thread (Passed in r0) |
|---|---|
| NewStack | The address to restore the stack pointer from for the new thread (Passed in r1) |
| NewThread | The handle of the new thread to switch to (Passed in r2) |
| Note | At the point of the actual context switch (str sp/ldr sp) the thread stacks will look like this:
|
procedure ARMv8ContextSwitchIRQ(OldStack,NewStack:Pointer; NewThread:TThreadHandle); assembler; nostackframe;
Description: Perform a context switch from one thread to another as a result of an interrupt request (IRQ)
| OldStack | The address to save the stack pointer to for the current thread (Passed in r0) |
|---|---|
| NewStack | The address to restore the stack pointer from for the new thread (Passed in r1) |
| NewThread | The handle of the new thread to switch to (Passed in r2) |
| Note | At the point of the actual context switch (str sp/ldr sp) the thread stacks will look like this:
|
procedure ARMv8ContextSwitchFIQ(OldStack,NewStack:Pointer; NewThread:TThreadHandle); assembler; nostackframe;
Description: Perform a context switch from one thread to another as a result of a fast interrupt request (FIQ)
| OldStack | The address to save the stack pointer to for the current thread (Passed in r0) |
|---|---|
| NewStack | The address to restore the stack pointer from for the new thread (Passed in r1) |
| NewThread | The handle of the new thread to switch to (Passed in r2) |
| Note | At the point of the actual context switch (str sp/ldr sp) the thread stacks will look like this:
|
procedure ARMv8ContextSwitchSWI(OldStack,NewStack:Pointer; NewThread:TThreadHandle); assembler; nostackframe;
Description: Perform a context switch from one thread to another as a result of a software interrupt (SWI)
| OldStack | The address to save the stack pointer to for the current thread (Passed in r0) |
|---|---|
| NewStack | The address to restore the stack pointer from for the new thread (Passed in r1) |
| NewThread | The handle of the new thread to switch to (Passed in r2) |
| Note | At the point of the actual context switch (str sp/ldr sp) the thread stacks will look like this:
|
function ARMv8InterlockedOr(var Target:LongInt; Value:LongInt):LongInt; assembler; nostackframe;
Description: Perform an atomic OR operation using LDREX/STREX
| Note | See page ??? |
|---|
function ARMv8InterlockedXor(var Target:LongInt; Value:LongInt):LongInt; assembler; nostackframe;
Description: Perform an atomic XOR operation using LDREX/STREX
| Note | See page ??? |
|---|
function ARMv8InterlockedAnd(var Target:LongInt; Value:LongInt):LongInt; assembler; nostackframe;
Description: Perform an atomic AND operation using LDREX/STREX
| Note | See page ??? |
|---|
function ARMv8InterlockedDecrement(var Target:LongInt):LongInt; assembler; nostackframe;
Description: Perform an atomic decrement operation using LDREX/STREX
| Note | See page ??? |
|---|
function ARMv8InterlockedIncrement(var Target:LongInt):LongInt; assembler; nostackframe;
Description: Perform an atomic increment operation using LDREX/STREX
| Note | See page ??? |
|---|
function ARMv8InterlockedExchange(var Target:LongInt; Source:LongInt):LongInt; assembler; nostackframe;
Description: Perform an atomic exchange operation using LDREX/STREX
| Note | See page ??? |
|---|
function ARMv8InterlockedAddExchange(var Target:LongInt; Source:LongInt):LongInt; assembler; nostackframe;
Description: Perform an atomic add and exchange operation using LDREX/STREX
| Note | See page ??? |
|---|
function ARMv8InterlockedCompareExchange(var Target:LongInt; Source,Compare:LongInt):LongInt; assembler; nostackframe;
Description: Perform an atomic compare and exchange operation using LDREX/STREX
| Note | See page ??? |
|---|
procedure ARMv8PageTableGetEntry(Address:PtrUInt; var Entry:TPageTableEntry);
Description: Get and Decode the entry in the Page Table that corresponds to the supplied virtual address
| Note | None documented |
|---|
function ARMv8PageTableSetEntry(const Entry:TPageTableEntry):LongWord;
Description: Encode and Set an entry in the Page Table that corresponds to the supplied virtual address
| Note | None documented |
|---|
function ARMv8VectorTableGetEntry(Number:LongWord):PtrUInt;
Description: Return the address of the specified vector table entry number
| Note | None documented |
|---|
function ARMv8VectorTableSetEntry(Number:LongWord; Address:PtrUInt):LongWord;
Description: Set the supplied address as the value of the specified vector table entry number
| Note | None documented |
|---|
function ARMv8FirstBitSet(Value:LongWord):LongWord; assembler; nostackframe;
Description: To be documented
| Note | ARM arm states that CLZ is supported for ARMv5 and above |
|---|
function ARMv8CountLeadingZeros(Value:LongWord):LongWord; assembler; nostackframe;
Description: Equivalent of the GCC Builtin function __builtin_clz
| Note | ARM arm states that CLZ is supported for ARMv5 and above |
|---|
ARMv8 thread functions
procedure ARMv8PrimaryInit; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
function ARMv8SpinLock(Spin:PSpinEntry):LongWord; assembler; nostackframe;
Description: Lock an existing Spin entry
| Spin | Pointer to the Spin entry to lock (Passed in R0) |
|---|---|
| Return | ERROR_SUCCESS if completed or another error code on failure (Returned in R0) |
function ARMv8SpinUnlock(Spin:PSpinEntry):LongWord; assembler; nostackframe;
Description: Unlock an existing Spin entry
| Spin | Pointer to the Spin entry to lock (Passed in R0) |
|---|---|
| Return | ERROR_SUCCESS if completed or another error code on failure (Returned in R0) |
function ARMv8SpinLockIRQ(Spin:PSpinEntry):LongWord; assembler; nostackframe;
Description: Lock an existing Spin entry, disable IRQ and save the previous IRQ state
| Spin | Pointer to the Spin entry to lock (Passed in R0) |
|---|---|
| Return | ERROR_SUCCESS if completed or another error code on failure (Returned in R0) |
function ARMv8SpinUnlockIRQ(Spin:PSpinEntry):LongWord; assembler; nostackframe;
Description: Unlock an existing Spin entry and restore the previous IRQ state
| Spin | Pointer to the Spin entry to lock (Passed in R0) |
|---|---|
| Return | ERROR_SUCCESS if completed or another error code on failure (Returned in R0) |
function ARMv8SpinLockFIQ(Spin:PSpinEntry):LongWord; assembler; nostackframe;
Description: Lock an existing Spin entry, disable FIQ and save the previous FIQ state
| Spin | Pointer to the Spin entry to lock (Passed in R0) |
|---|---|
| Return | ERROR_SUCCESS if completed or another error code on failure (Returned in R0) |
function ARMv8SpinUnlockFIQ(Spin:PSpinEntry):LongWord; assembler; nostackframe;
Description: Unlock an existing Spin entry and restore the previous FIQ state
| Spin | Pointer to the Spin entry to lock (Passed in R0) |
|---|---|
| Return | ERROR_SUCCESS if completed or another error code on failure (Returned in R0) |
function ARMv8SpinLockIRQFIQ(Spin:PSpinEntry):LongWord; assembler; nostackframe;
Description: Lock an existing Spin entry, disable IRQ and FIQ and save the previous IRQ/FIQ state
| Spin | Pointer to the Spin entry to lock (Passed in R0) |
|---|---|
| Return | ERROR_SUCCESS if completed or another error code on failure (Returned in R0) |
function ARMv8SpinUnlockIRQFIQ(Spin:PSpinEntry):LongWord; assembler; nostackframe;
Description: Unlock an existing Spin entry and restore the previous IRQ/FIQ state
| Spin | Pointer to the Spin entry to lock (Passed in R0) |
|---|---|
| Return | ERROR_SUCCESS if completed or another error code on failure (Returned in R0) |
function ARMv8SpinCheckIRQ(Spin:PSpinEntry):Boolean;
Description: To be documented
| Return | True if the mask would enable IRQ on restore, False if it would not. |
|---|
function ARMv8SpinCheckFIQ(Spin:PSpinEntry):Boolean;
Description: To be documented
| Return | True if the mask would enable FIQ on restore, False if it would not. |
|---|
function ARMv8SpinExchangeIRQ(Spin1,Spin2:PSpinEntry):LongWord;
Description: To be documented
| Note | None documented |
|---|
function ARMv8SpinExchangeFIQ(Spin1,Spin2:PSpinEntry):LongWord;
Description: To be documented
| Note | None documented |
|---|
function ARMv8MutexLock(Mutex:PMutexEntry):LongWord; assembler; nostackframe;
Description: Lock an existing Mutex entry
| Mutex | Pointer to the Mutex entry to lock (Passed in R0) |
|---|---|
| Return | ERROR_SUCCESS if completed or another error code on failure (Returned in R0) |
function ARMv8MutexUnlock(Mutex:PMutexEntry):LongWord; assembler; nostackframe;
Description: Unlock an existing Mutex entry
| Mutex | Pointer to the Mutex entry to lock (Passed in R0) |
|---|---|
| Return | ERROR_SUCCESS if completed or another error code on failure (Returned in R0) |
function ARMv8MutexTryLock(Mutex:PMutexEntry):LongWord; assembler; nostackframe;
Description: Try to lock an existing Mutex entry
| Mutex | Pointer to the Mutex entry to try to lock (Passed in R0) |
|---|---|
| Return | ERROR_SUCCESS if completed, ERROR_LOCKED if already locked or another error code on failure (Returned in R0). |
function ARMv8ThreadGetCurrent:TThreadHandle; assembler; nostackframe;
Description: Get the current thread Id from the c13 (Thread and process ID) register of system control coprocessor CP15
| Note | See page ??? |
|---|
function ARMv8ThreadSetCurrent(Thread:TThreadHandle):LongWord; assembler; nostackframe;
Description: Set the current thread Id in the c13 (Thread and process ID) register of system control coprocessor CP15
| Note | See page ??? |
|---|
function ARMv8ThreadSetupStack(StackBase:Pointer; StartProc:TThreadStart; ReturnProc:TThreadEnd; Parameter:Pointer):Pointer;
Description: Set up the context record and arguments on the stack for a new thread
| StackBase | Pointer to the base (highest address) of the allocated stack (as returned by ThreadAllocateStack |
|---|---|
| StartProc | The procedure the thread will start executing when resumed |
| ReturnProc | The procedure the thread will return to on exit |
| Return | Pointer to the starting address of the stack, which will be the Stack Pointer on the first context switch. |
| Note | At the point of a context switch the thread stack will look like this:
|
ARMv8 IRQ functions
function ARMv8DispatchIRQ(CPUID:LongWord; Thread:TThreadHandle):TThreadHandle; inline;
Description: To be documented
| Note | None documented |
|---|
ARMv8 FIQ functions
function ARMv8DispatchFIQ(CPUID:LongWord; Thread:TThreadHandle):TThreadHandle; inline;
Description: To be documented
| Note | None documented |
|---|
ARMv8 SWI functions
function ARMv8DispatchSWI(CPUID:LongWord; Thread:TThreadHandle; Request:PSystemCallRequest):TThreadHandle; inline;
Description: To be documented
| Note | None documented |
|---|
ARMv8 interrupt functions
procedure ARMv8ResetHandler; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
procedure ARMv8UndefinedInstructionHandler; assembler; nostackframe;
Description: Handle an undefined instruction exception
| Note | This routine is registered as the vector for undefined instruction exception in the vector table loaded during startup |
|---|
procedure ARMv8SoftwareInterruptHandler; assembler; nostackframe;
Description: Handle a software interrupt (SWI) from a system call (SVC)
| Note | This routine is registered as the vector for SWI requests in the vector table loaded during startup. When the processor executes an SVC it switches to SWI mode, stores the address of the next instruction in the SWI mode link register (lr_svc) and saves the current program status register into the SWI mode saved program status register (spsr_svc).
|
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procedure ARMv8PrefetchAbortHandler; assembler; nostackframe;
Description: Handle a prefetch abort exception
| Note | This routine is registered as the vector for prefetch abort exception in the vector table loaded during startup |
|---|
procedure ARMv8DataAbortHandler; assembler; nostackframe;
Description: Handle a data abort exception
| Note | This routine is registered as the vector for data abort exception in the vector table loaded during startup |
|---|
procedure ARMv8ReservedHandler; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
procedure ARMv8IRQHandler; assembler; nostackframe;
Description: Handle an interrupt request IRQ from an interrupt source
| Note | This routine is registered as the vector for IRQ requests in the vector table loaded during startup.
|
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procedure ARMv8FIQHandler; assembler; nostackframe;
Description: Handle a fast interrupt request FIQ from an interrupt source
| Note | This routine is registered as the vector for FIQ requests in the vector table loaded during startup.
|
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ARMv8 helper functions
function ARMv8GetFPEXC:LongWord; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
function ARMv8GetFPSCR:LongWord; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
procedure ARMv8StartMMU; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
function ARMv8GetTimerState(Timer:LongWord):LongWord; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
procedure ARMv8SetTimerState(Timer,State:LongWord); assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
function ARMv8GetTimerCount(Timer:LongWord):Int64; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
function ARMv8GetTimerValue(Timer:LongWord):LongWord; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
procedure ARMV8SetTimerValue(Timer,Value:LongWord); assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
function ARMv8GetTimerCompare(Timer:LongWord):Int64; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
procedure ARMV8SetTimerCompare(Timer,High,Low:LongWord); assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
function ARMv8GetTimerFrequency:LongWord; assembler; nostackframe;
Description: To be documented
| Note | None documented |
|---|
function ARMv8GetPageTableCoarse(Address:PtrUInt):LongWord;
Description: Get the descriptor for a Coarse Page Table entry (1MB)
| Note | See page ??? |
|---|
function ARMv8SetPageTableCoarse(Address,CoarseAddress:PtrUInt; Flags:Word):Boolean;
Description: Set the descriptor for a Coarse Page Table entry (1MB)
| Note | See page ???
Caller must call ARMv8InvalidateTLB after changes if MMU is enabled |
|---|
function ARMv8GetPageTableLarge(Address:PtrUInt):LongWord;
Description: Get the descriptor for a Large Page Table entry (64KB)
| Note | See page ??? |
|---|
function ARMv8SetPageTableLarge(Address,PhysicalAddress:PtrUInt; Flags:Word):Boolean;
Description: Set the descriptor for a Large Page Table entry (64KB)
| PageTable | Large Page Table descriptors must begin on a 16 longword (64 byte) boundary and be repeated for 16 consecutive longwords |
|---|---|
| Note | See page ???
Caller must call ARMv8InvalidateTLB after changes if MMU is enabled |
function ARMv8GetPageTableSmall(Address:PtrUInt):LongWord;
Description: Get the descriptor for a Small Page Table entry (4KB)
| Note | See page ??? |
|---|
function ARMv8SetPageTableSmall(Address,PhysicalAddress:PtrUInt; Flags:Word):Boolean;
Description: Set the descriptor for a Small Page Table entry (4KB)
| Note | See page ???
Caller must call ARMv8InvalidateTLB after changes if MMU is enabled |
|---|
function ARMv8GetPageTableSection(Address:PtrUInt):LongWord;
Description: Get the descriptor for a Page Table Section (1MB) or Supersection (16MB)
| Note | See page ??? |
|---|
function ARMv8SetPageTableSection(Address,PhysicalAddress:PtrUInt; Flags:LongWord):Boolean;
Description: Set the descriptor for a Page Table Section (1MB)
| Note | See page ???
Caller must call ARMv8InvalidateTLB after changes if MMU is enabled |
|---|
function ARMv8SetPageTableSupersection(Address,PhysicalAddress:PtrUInt; Flags:LongWord):Boolean;
Description: Set the descriptor for a Page Table Supersection (16MB)
| PageTable | Supersection Page Table descriptors must begin on a 16 longword (64 byte) boundary and be repeated for 16 consecutive longwords |
|---|---|
| Note | See page ???
Caller must call ARMv8InvalidateTLB after changes if MMU is enabled |
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