PMICFILTR

External register PMICFILTR_EL0 bits [63:0] are architecturally mapped to AArch64 System register PMICFILTR_EL0[63:0].

This register is present only when FEAT_PMUv3_ICNTR is implemented. Otherwise, direct accesses to PMICFILTR_EL0 are RES0.

Attributes

Field descriptions

Bits [63:59]

SYNC, bit [58]
When FEAT_SEBEP is implemented:

Synchronous mode. Controls whether a PMU exception generated by the counter is synchronous or asynchronous.

SYNC	Meaning
0b0	Asynchronous PMU exception is enabled.
0b1	Synchronous PMU exception is enabled.

The reset behavior of this field is:

On a Warm reset, this field resets to an architecturally UNKNOWN value.

Otherwise:

VS, bits [57:56]
When FEAT_PMUv3_SME is implemented:

SVE mode filtering. Controls counting instructions in Streaming and Non-streaming SVE modes.

VS	Meaning
0b00	This mechanism has no effect on the filtering of instructions.
0b01	The PE does not count instructions in Streaming SVE mode.
0b10	The PE does not count instructions in Non-streaming SVE mode.

All other values are reserved.

The reset behavior of this field is:

On a Warm reset:
- When AArch32 is supported, this field resets to 0.
- Otherwise, this field resets to an architecturally UNKNOWN value.

Otherwise:

Bits [55:32]

P, bit [31]

EL1 filtering. Controls counting instructions in EL1.

P	Meaning
0b0	This mechanism has no effect on filtering of instructions.
0b1	The PE does not count instructions in EL1.

If Secure and Non-secure states are implemented, then counting instructions in Non-secure EL1 is further controlled by PMICFILTR_EL0.NSK.

If FEAT_RME is implemented, then counting instructions in Realm EL1 is further controlled by PMICFILTR_EL0.RLK.

If EL3 is implemented, then counting instructions in EL3 is further controlled by PMICFILTR_EL0.M.

The reset behavior of this field is:

On a Warm reset, this field resets to an architecturally UNKNOWN value.

U, bit [30]

EL0 filtering. Controls counting instructions in EL0.

U	Meaning
0b0	This mechanism has no effect on filtering of instructions.
0b1	The PE does not count instructions in EL0.

If Secure and Non-secure states are implemented, then counting instructions in Non-secure EL0 is further controlled by PMICFILTR_EL0.NSU.

If FEAT_RME is implemented, then counting instructions in Realm EL0 is further controlled by PMICFILTR_EL0.RLU.

The reset behavior of this field is:

On a Warm reset, this field resets to an architecturally UNKNOWN value.

NSK, bit [29]
When EL3 is implemented:

Non-secure EL1 filtering. Controls counting instructions in Non-secure EL1. If PMICFILTR_EL0.NSK is not equal to PMICFILTR_EL0.P, then the PE does not count instructions in Non-secure EL1. Otherwise, this mechanism has no effect on filtering of instructions in Non-secure EL1.

NSK	Meaning
0b0	When PMICFILTR_EL0.P == 0, this mechanism has no effect on filtering of instructions. When PMICFILTR_EL0.P == 1, the PE does not count instructions in Non-secure EL1.
0b1	When PMICFILTR_EL0.P == 0, the PE does not count instructions in Non-secure EL1. When PMICFILTR_EL0.P == 1, this mechanism has no effect on filtering of instructions.

NSK

Meaning

0b0

When PMICFILTR_EL0.P == 0, this mechanism has no effect on filtering of instructions.

When PMICFILTR_EL0.P == 1, the PE does not count instructions in Non-secure EL1.

0b1

When PMICFILTR_EL0.P == 0, the PE does not count instructions in Non-secure EL1.

When PMICFILTR_EL0.P == 1, this mechanism has no effect on filtering of instructions.

The reset behavior of this field is:

On a Warm reset, this field resets to an architecturally UNKNOWN value.

Otherwise:

NSU, bit [28]
When EL3 is implemented:

Non-secure EL0 filtering. Controls counting instructions in Non-secure EL0. If PMICFILTR_EL0.NSU is not equal to PMICFILTR_EL0.U, then the PE does not count instructions in Non-secure EL0. Otherwise, this mechanism has no effect on filtering of instructions in Non-secure EL0.

NSU	Meaning
0b0	When PMICFILTR_EL0.U == 0, this mechanism has no effect on filtering of instructions. When PMICFILTR_EL0.U == 1, the PE does not count instructions in Non-secure EL0.
0b1	When PMICFILTR_EL0.U == 0, the PE does not count instructions in Non-secure EL0. When PMICFILTR_EL0.U == 1, this mechanism has no effect on filtering of instructions.

NSU

Meaning

0b0

When PMICFILTR_EL0.U == 0, this mechanism has no effect on filtering of instructions.

When PMICFILTR_EL0.U == 1, the PE does not count instructions in Non-secure EL0.

0b1

When PMICFILTR_EL0.U == 0, the PE does not count instructions in Non-secure EL0.

When PMICFILTR_EL0.U == 1, this mechanism has no effect on filtering of instructions.

The reset behavior of this field is:

On a Warm reset, this field resets to an architecturally UNKNOWN value.

Otherwise:

NSH, bit [27]
When EL2 is implemented:

EL2 filtering. Controls counting instructions in EL2.

NSH	Meaning
0b0	The PE does not count instructions in EL2.
0b1	This mechanism has no effect on filtering of instructions.

If EL3 is implemented and FEAT_SEL2 is implemented, then counting instructions in Secure EL2 is further controlled by PMICFILTR_EL0.SH.

If FEAT_RME is implemented, then counting instructions in Realm EL2 is further controlled by PMICFILTR_EL0.RLH.

The reset behavior of this field is:

On a Warm reset, this field resets to an architecturally UNKNOWN value.

Otherwise:

M, bit [26]
When EL3 is implemented:

EL3 filtering. Controls counting instructions in EL3. If PMICFILTR_EL0.M is not equal to PMICFILTR_EL0.P, then the PE does not count instructions in EL3. Otherwise, this mechanism has no effect on filtering of instructions in EL3.

M	Meaning
0b0	When PMICFILTR_EL0.P == 0, this mechanism has no effect on filtering of instructions. When PMICFILTR_EL0.P == 1, the PE does not count instructions in EL3.
0b1	When PMICFILTR_EL0.P == 0, the PE does not count instructions in EL3. When PMICFILTR_EL0.P == 1, this mechanism has no effect on filtering of instructions.

Meaning

0b0

When PMICFILTR_EL0.P == 0, this mechanism has no effect on filtering of instructions.

When PMICFILTR_EL0.P == 1, the PE does not count instructions in EL3.

0b1

When PMICFILTR_EL0.P == 0, the PE does not count instructions in EL3.

When PMICFILTR_EL0.P == 1, this mechanism has no effect on filtering of instructions.

The reset behavior of this field is:

On a Warm reset, this field resets to an architecturally UNKNOWN value.

Otherwise:

Bit [25]

SH, bit [24]
When EL3 is implemented and FEAT_SEL2 is implemented:

Secure EL2 filtering. Controls counting instructions in Secure EL2. If PMICFILTR_EL0.SH is equal to PMICFILTR_EL0.NSH, then the PE does not count instructions in Secure EL2. Otherwise, this mechanism has no effect on filtering of instructions in Secure EL2.

SH	Meaning
0b0	When PMICFILTR_EL0.NSH == 0, the PE does not count instructions in Secure EL2. When PMICFILTR_EL0.NSH == 1, this mechanism has no effect on filtering of instructions.
0b1	When PMICFILTR_EL0.NSH == 0, this mechanism has no effect on filtering of instructions. When PMICFILTR_EL0.NSH == 1, the PE does not count instructions in Secure EL2.

Meaning

0b0

When PMICFILTR_EL0.NSH == 0, the PE does not count instructions in Secure EL2.

When PMICFILTR_EL0.NSH == 1, this mechanism has no effect on filtering of instructions.

0b1

When PMICFILTR_EL0.NSH == 0, this mechanism has no effect on filtering of instructions.

When PMICFILTR_EL0.NSH == 1, the PE does not count instructions in Secure EL2.

The reset behavior of this field is:

On a Warm reset, this field resets to an architecturally UNKNOWN value.

When Secure EL2 is not implemented, access to this field is RES0 .

Otherwise:

T, bit [23]
When FEAT_TME is implemented:

Non-Transactional state filtering bit. Controls counting of instructions in Non-transactional state.

T	Meaning
0b0	This bit has no effect on the filtering of instructions.
0b1	Do not count Attributable instructions in Non-transactional state.

The reset behavior of this field is:

On a Warm reset, this field resets to an architecturally UNKNOWN value.

Otherwise:

RLK, bit [22]
When FEAT_RME is implemented:

Realm EL1 filtering. Controls counting instructions in Realm EL1. If PMICFILTR_EL0.RLK is not equal to PMICFILTR_EL0.P, then the PE does not count instructions in Realm EL1. Otherwise, this mechanism has no effect on filtering of instructions in Realm EL1.

RLK	Meaning
0b0	When PMICFILTR_EL0.P == 0, this mechanism has no effect on filtering of instructions. When PMICFILTR_EL0.P == 1, the PE does not count instructions in Realm EL1.
0b1	When PMICFILTR_EL0.P == 0, the PE does not count instructions in Realm EL1. When PMICFILTR_EL0.P == 1, this mechanism has no effect on filtering of instructions.

RLK

Meaning

0b0

When PMICFILTR_EL0.P == 0, this mechanism has no effect on filtering of instructions.

When PMICFILTR_EL0.P == 1, the PE does not count instructions in Realm EL1.

0b1

When PMICFILTR_EL0.P == 0, the PE does not count instructions in Realm EL1.

When PMICFILTR_EL0.P == 1, this mechanism has no effect on filtering of instructions.

The reset behavior of this field is:

On a Warm reset, this field resets to an architecturally UNKNOWN value.

Otherwise:

RLU, bit [21]
When FEAT_RME is implemented:

Realm EL0 filtering. Controls counting instructions in Realm EL0. If PMICFILTR_EL0.RLU is not equal to PMICFILTR_EL0.U, then the PE does not count instructions in Realm EL0. Otherwise, this mechanism has no effect on filtering of instructions in Realm EL0.

RLU	Meaning
0b0	When PMICFILTR_EL0.U == 0, this mechanism has no effect on filtering of instructions. When PMICFILTR_EL0.U == 1, the PE does not count instructions in Realm EL0.
0b1	When PMICFILTR_EL0.U == 0, the PE does not count instructions in Realm EL0. When PMICFILTR_EL0.U == 1, this mechanism has no effect on filtering of instructions.

RLU

Meaning

0b0

When PMICFILTR_EL0.U == 0, this mechanism has no effect on filtering of instructions.

When PMICFILTR_EL0.U == 1, the PE does not count instructions in Realm EL0.

0b1

When PMICFILTR_EL0.U == 0, the PE does not count instructions in Realm EL0.

When PMICFILTR_EL0.U == 1, this mechanism has no effect on filtering of instructions.

The reset behavior of this field is:

On a Warm reset, this field resets to an architecturally UNKNOWN value.

Otherwise:

RLH, bit [20]
When FEAT_RME is implemented:

Realm EL2 filtering. Controls counting instructions in Realm EL2. If PMICFILTR_EL0.RLH is equal to PMICFILTR_EL0.NSH, then the PE does not count instructions in Realm EL2. Otherwise, this mechanism has no effect on filtering of instructions in Realm EL2.

RLH	Meaning
0b0	When PMICFILTR_EL0.NSH == 0, the PE does not count instructions in Realm EL2. When PMICFILTR_EL0.NSH == 1, this mechanism has no effect on filtering of instructions.
0b1	When PMICFILTR_EL0.NSH == 0, this mechanism has no effect on filtering of instructions. When PMICFILTR_EL0.NSH == 1, the PE does not count instructions in Realm EL2.

RLH

Meaning

0b0

When PMICFILTR_EL0.NSH == 0, the PE does not count instructions in Realm EL2.

When PMICFILTR_EL0.NSH == 1, this mechanism has no effect on filtering of instructions.

0b1

When PMICFILTR_EL0.NSH == 0, this mechanism has no effect on filtering of instructions.

When PMICFILTR_EL0.NSH == 1, the PE does not count instructions in Realm EL2.

The reset behavior of this field is:

On a Warm reset, this field resets to an architecturally UNKNOWN value.

Otherwise:

Bits [19:16]

evtCount, bits [15:0]

Accessing PMICFILTR_EL0

Accesses to this register use the following encodings:

When FEAT_PMUv3_EXT32 is implemented

[31:0] Accessible at offset 0x480 from PMU

When DoubleLockStatus(), or !IsCorePowered(), or OSLockStatus() or !AllowExternalPMUAccess(), accesses to this register generate an error response.
When SoftwareLockStatus(), accesses to this register are RO.
Otherwise, accesses to this register are RW.

When FEAT_PMUv3_EXT64 is implemented

Accessible at offset 0x500 from PMU

When DoubleLockStatus(), or !IsCorePowered(), or OSLockStatus() or !AllowExternalPMUAccess(), accesses to this register generate an error response.
Otherwise, accesses to this register are RW.

When FEAT_PMUv3_EXT32 is implemented

[63:32] Accessible at offset 0xA80 from PMU

When DoubleLockStatus(), or !IsCorePowered(), or OSLockStatus() or !AllowExternalPMUAccess(), accesses to this register generate an error response.
When SoftwareLockStatus(), accesses to this register are RO.
Otherwise, accesses to this register are RW.

PMICFILTR_EL0, Performance Monitors Instruction Counter Filter Register

Purpose

Configuration

Attributes

Field descriptions

Bits [63:59]

SYNC, bit [58]
When FEAT_SEBEP is implemented:

Otherwise:

VS, bits [57:56]
When FEAT_PMUv3_SME is implemented:

Otherwise:

Bits [55:32]

P, bit [31]

U, bit [30]

NSK, bit [29]
When EL3 is implemented:

Otherwise:

NSU, bit [28]
When EL3 is implemented:

Otherwise:

NSH, bit [27]
When EL2 is implemented:

Otherwise:

M, bit [26]
When EL3 is implemented:

Otherwise:

Bit [25]

SH, bit [24]
When EL3 is implemented and FEAT_SEL2 is implemented:

Otherwise:

T, bit [23]
When FEAT_TME is implemented:

Otherwise:

RLK, bit [22]
When FEAT_RME is implemented:

Otherwise:

RLU, bit [21]
When FEAT_RME is implemented:

Otherwise:

RLH, bit [20]
When FEAT_RME is implemented:

Otherwise:

Bits [19:16]

evtCount, bits [15:0]

Accessing PMICFILTR_EL0

When FEAT_PMUv3_EXT32 is implemented

When FEAT_PMUv3_EXT64 is implemented

When FEAT_PMUv3_EXT32 is implemented

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
RES0					SYNC	VS		RES0
P	U	NSK	NSU	NSH	M	RES0	SH	T	RLK	RLU	RLH	RES0				evtCount

PMICFILTR_EL0, Performance Monitors Instruction Counter Filter Register

Purpose

Configuration

Attributes

Field descriptions

Bits [63:59]

SYNC, bit [58]When FEAT_SEBEP is implemented:

Otherwise:

VS, bits [57:56]When FEAT_PMUv3_SME is implemented:

Otherwise:

Bits [55:32]

P, bit [31]

U, bit [30]

NSK, bit [29]When EL3 is implemented:

Otherwise:

NSU, bit [28]When EL3 is implemented:

Otherwise:

NSH, bit [27]When EL2 is implemented:

Otherwise:

M, bit [26]When EL3 is implemented:

Otherwise:

Bit [25]

SH, bit [24]When EL3 is implemented and FEAT_SEL2 is implemented:

Otherwise:

T, bit [23]When FEAT_TME is implemented:

Otherwise:

RLK, bit [22]When FEAT_RME is implemented:

Otherwise:

RLU, bit [21]When FEAT_RME is implemented:

Otherwise:

RLH, bit [20]When FEAT_RME is implemented:

Otherwise:

Bits [19:16]

evtCount, bits [15:0]

Accessing PMICFILTR_EL0

When FEAT_PMUv3_EXT32 is implemented

When FEAT_PMUv3_EXT64 is implemented

When FEAT_PMUv3_EXT32 is implemented

SYNC, bit [58]
When FEAT_SEBEP is implemented:

VS, bits [57:56]
When FEAT_PMUv3_SME is implemented:

NSK, bit [29]
When EL3 is implemented:

NSU, bit [28]
When EL3 is implemented:

NSH, bit [27]
When EL2 is implemented:

M, bit [26]
When EL3 is implemented:

SH, bit [24]
When EL3 is implemented and FEAT_SEL2 is implemented:

T, bit [23]
When FEAT_TME is implemented:

RLK, bit [22]
When FEAT_RME is implemented:

RLU, bit [21]
When FEAT_RME is implemented:

RLH, bit [20]
When FEAT_RME is implemented: