The DCCMVAU characteristics are:
Clean data or unified cache line by virtual address to PoU.
AArch32 System instruction DCCMVAU performs the same function as AArch64 System instruction DC CVAU.
DCCMVAU is a 32-bit System instruction.
The DCCMVAU input value bit assignments are:
31 | 30 | 29 | 28 | 27 | 26 | 25 | 24 | 23 | 22 | 21 | 20 | 19 | 18 | 17 | 16 | 15 | 14 | 13 | 12 | 11 | 10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
Virtual address to use |
Virtual address to use. No alignment restrictions apply to this VA.
Execution of this instruction might require an address translation from VA to PA, and that translation might fault. For more information, see 'AArch32 data cache maintenance instruction (DC*)' in the Arm® Architecture Reference Manual, Armv8, for Armv8-A architecture profile.
Accesses to this instruction use the following encodings:
coproc | opc1 | CRn | CRm | opc2 |
---|---|---|---|---|
0b1111 | 0b000 | 0b0111 | 0b1011 | 0b001 |
if PSTATE.EL == EL0 then UNDEFINED; elsif PSTATE.EL == EL1 then if EL2Enabled() && !ELUsingAArch32(EL2) && HSTR_EL2.T7 == '1' then AArch64.AArch32SystemAccessTrap(EL2, 0x03); elsif EL2Enabled() && ELUsingAArch32(EL2) && HSTR.T7 == '1' then AArch32.TakeHypTrapException(0x03); elsif EL2Enabled() && !ELUsingAArch32(EL2) && HCR_EL2.TPU == '1' then AArch64.AArch32SystemAccessTrap(EL2, 0x03); elsif EL2Enabled() && !ELUsingAArch32(EL2) && HCR_EL2.TOCU == '1' then AArch64.AArch32SystemAccessTrap(EL2, 0x03); elsif EL2Enabled() && !ELUsingAArch32(EL2) && HCR.TPU == '1' then AArch32.TakeHypTrapException(0x03); elsif EL2Enabled() && ELUsingAArch32(EL2) && HCR2.TOCU == '1' then AArch32.TakeHypTrapException(0x03); else DCCMVAU(R[t]); elsif PSTATE.EL == EL2 then DCCMVAU(R[t]); elsif PSTATE.EL == EL3 then DCCMVAU(R[t]);
27/03/2019 21:59; e5e4db499bf9867a4b93324c4dbac985d3da9376
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