The MSMON_MBWU_L_CAPTURE characteristics are:
Accesses the captured MSMON_MBWU_L monitor instance selected by MSMON_CFG_MON_SEL.
MSMON_MBWU_L_CAPTURE_s is the Secure long memory bandwidth usage monitor capture instance selected by the Secure instance of MSMON_CFG_MON_SEL. MSMON_MBWU_L_CAPTURE_ns is the Non-secure long memory bandwidth usage monitor capture instance selected by the Non-secure instance of MSMON_CFG_MON_SEL. MSMON_MBWU_L_CAPTURE_rt is the Root long memory bandwidth usage monitor capture instance selected by the Root instance of MSMON_CFG_MON_SEL. MSMON_MBWU_L_CAPTURE_rl is the Realm long memory bandwidth usage monitor capture instance selected by the Realm instance of MSMON_CFG_MON_SEL.
If MPAMF_IDR.HAS_RIS is 1, the monitor instance long capture register accessed is for the resource instance currently selected by MSMON_CFG_MON_SEL.RIS and the monitor instance of that resource instance selected by MSMON_CFG_MON_SEL.MON_SEL.
The power domain of MSMON_MBWU_L_CAPTURE is IMPLEMENTATION DEFINED.
This register is present only when FEAT_MPAM is implemented, MPAMF_IDR.HAS_MSMON == 1, MPAMF_MSMON_IDR.MSMON_MBWU == 1, MPAMF_MBWUMON_IDR.HAS_CAPTURE == 1 and MPAMF_MBWUMON_IDR.HAS_LONG == 1. Otherwise, direct accesses to MSMON_MBWU_L_CAPTURE are RES0.
The power and reset domain of each MSC component is specific to that component.
MSMON_MBWU_L_CAPTURE is a 64-bit register.
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 |
NRDY | RES0 | VALUE | |||||||||||||||||||||||||||||
VALUE |
Not Ready. Indicates whether the monitor has possibly inaccurate data.
NRDY | Meaning |
---|---|
0b0 |
The captured monitor instance was ready and the MSMON_MBWU_L_CAPTURE.VALUE field is accurate. |
0b1 |
The captured monitor instance was not ready and the contents of the MSMON_MBWU_L_CAPTURE.VALUE field might be inaccurate or otherwise not represent the actual memory bandwidth usage. |
Reserved, RES0.
Captured long memory bandwidth usage counter value if MSMON_MBWU_L_CAPTURE.NRDY is 0. Invalid if MSMON_MBWU_L_CAPTURE.NRDY is 1.
VALUE is the captured 44-bit count of bytes transferred since the monitor instance was last reset that met the criteria set in MSMON_CFG_MBWU_FLT and MSMON_CFG_MBWU_CTL for the monitor instance selected by MSMON_CFG_MON_SEL.
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 |
NRDY | VALUE | ||||||||||||||||||||||||||||||
VALUE |
Not Ready. Indicates whether the monitor has possibly inaccurate data.
NRDY | Meaning |
---|---|
0b0 |
The captured monitor instance was ready and the MSMON_MBWU_L_CAPTURE.VALUE field is accurate. |
0b1 |
The captured monitor instance was not ready and the contents of the MSMON_MBWU_L_CAPTURE.VALUE field might be inaccurate or otherwise not represent the actual memory bandwidth usage. |
The captured long memory bandwidth usage counter value if MSMON_MBWU_L_CAPTURE.NRDY is 0. Invalid if MSMON_MBWU_L_CAPTURE.NRDY is 1.
VALUE is the captured 63-bit count of bytes transferred since the monitor instance was last reset that met the criteria set in MSMON_CFG_MBWU_FLT and MSMON_CFG_MBWU_CTL for the monitor instance selected by MSMON_CFG_MON_SEL.
This register is within the MPAM feature page memory frames.
In a system that supports Secure, Non-secure, Root, and Realm memory maps, there must be MPAM feature pages in all four address maps:
MSMON_MBWU_L_CAPTURE_s, MSMON_MBWU_L_CAPTURE_ns, MSMON_MBWU_L_CAPTURE_rt, and MSMON_MBWU_L_CAPTURE_rl must be separate registers:
When RIS is implemented, reads and writes to MSMON_MBWU_L_CAPTURE access the monitor instance for the bandwidth resource instance selected by MSMON_CFG_MON_SEL.RIS and the memory bandwidth usage monitor instance selected by MSMON_CFG_MON_SEL.MON_SEL.
When RIS is not implemented, reads and writes to MSMON_MBWU_L_CAPTURE access the monitor instance for the memory bandwidth usage monitor instance selected by MSMON_CFG_MON_SEL.MON_SEL.
Component | Frame | Offset | Instance |
---|---|---|---|
MPAM | MPAMF_BASE_s | 0x0890 | MSMON_MBWU_CAPTURE_s |
Accesses on this interface are RW.
Component | Frame | Offset | Instance |
---|---|---|---|
MPAM | MPAMF_BASE_ns | 0x0890 | MSMON_MBWU_CAPTURE_ns |
Accesses on this interface are RW.
Component | Frame | Offset | Instance |
---|---|---|---|
MPAM | MPAMF_BASE_rt | 0x0890 | MSMON_MBWU_CAPTURE_rt |
When FEAT_RME is implemented, accesses on this interface are RW.
Component | Frame | Offset | Instance |
---|---|---|---|
MPAM | MPAMF_BASE_rl | 0x0890 | MSMON_MBWU_CAPTURE_rl |
When FEAT_RME is implemented, accesses on this interface are RW.
26/03/2024 09:49; 67c0ae5282a7629ba0ea0ba7267b43cd4f7939f6
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