DC CIVAPS | Jon's Arm Reference

Clean and Invalidate data in data cache by virtual address to the Point of Physical Storage.

This instruction cleans and invalidates all copies of the Location specified in the Xt argument, irrespective of any MECID associated with the Location. Memory accesses resulting from the Clean operation use the MECID associated with the cache entry.

Configuration

This instruction is present only when FEAT_PoPS is implemented and FEAT_AA64 is implemented. Otherwise, direct accesses to DC CIVAPS are UNDEFINED.

Attributes

Field descriptions

VA, bits [63:0]:

Executing DC CIVAPS

Execution of this instruction might require an address translation from VA to PA, and that translation might fault. For more information, see 'The data cache maintenance instruction (DC)'.

Accesses to this instruction use the following encodings in the System instruction encoding space:

DC CIVAPS, <Xt>

(op0 = 0b01, op1 = 0b000, CRn = 0b0111, CRm = 0b1111, op2 = 0b001)

if !(IsFeatureImplemented(FEAT_PoPS) && IsFeatureImplemented(FEAT_AA64)) then UNDEFINED; elsif PSTATE.EL == EL0 then UNDEFINED; elsif PSTATE.EL == EL1 then if EL2Enabled() && HCR_EL2.TPCP == '1' then AArch64.SystemAccessTrap(EL2, 0x18); elsif EL2Enabled() && IsFeatureImplemented(FEAT_FGT2) && ((HaveEL(EL3) && SCR_EL3.FGTEn2 == '0') || HFGITR2_EL2.nDCCIVAPS == '0') then AArch64.SystemAccessTrap(EL2, 0x18); else AArch64.DC(X[t, 64], CacheType_Data, CacheOp_CleanInvalidate, CacheOpScope_PoPS); elsif PSTATE.EL == EL2 then AArch64.DC(X[t, 64], CacheType_Data, CacheOp_CleanInvalidate, CacheOpScope_PoPS); elsif PSTATE.EL == EL3 then AArch64.DC(X[t, 64], CacheType_Data, CacheOp_CleanInvalidate, CacheOpScope_PoPS);

63	62	61	60	59	58	57	56	55	54	53	52	51	50	49	48	47	46	45	44	43	42	41	40	39	38	37	36	35	34	33	32
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
VA
VA

63	62	61	60	59	58	57	56	55	54	53	52	51	50	49	48	47	46	45	44	43	42	41	40	39	38	37	36	35	34	33	32
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
VA
VA

63	62	61	60	59	58	57	56	55	54	53	52	51	50	49	48	47	46	45	44	43	42	41	40	39	38	37	36	35	34	33	32
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
VA
VA

63	62	61	60	59	58	57	56	55	54	53	52	51	50	49	48	47	46	45	44	43	42	41	40	39	38	37	36	35	34	33	32
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
VA
VA