The GITS_CWRITER characteristics are:
Specifies the offset from GITS_CBASER where software writes the next ITS command.
RW fields in this register reset to architecturally UNKNOWN values.
Bits [63:32] and bits [31:0] are accessible separately.
GITS_CWRITER is a 64-bit register.
The GITS_CWRITER bit assignments are:
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 |
RES0 | |||||||||||||||||||||||||||||||
RES0 | Offset | RES0 | Retry | ||||||||||||||||||||||||||||
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 |
Reserved, RES0.
Bits [19:5] of the offset from GITS_CBASER. Bits [4:0] of the offset are zero.
This field resets to an architecturally UNKNOWN value.
Reserved, RES0.
Writing this bit has the following effects:
Retry | Meaning |
---|---|
0b0 |
No effect on the processing commands by the ITS. |
0b1 |
Restarts the processing of commands by the ITS if it stalled because of a command error. Note
If the processing of commands is not stalled because of a command error, writing 1 to this bit has no effect. |
When read, this bit is RES0.
See The ITS Command Interface for more information.
If GITS_CWRITER is written with a value outside of the valid range specified by GITS_CBASER.Physical_Address and GITS_CBASER.Size, behavior is a CONSTRAINED UNPREDICTABLE choice, as follows:
An implementation might choose to report a system error in an IMPLEMENTATION DEFINED manner.
Component | Offset | Instance |
---|---|---|
GIC ITS control | 0x0088 | GITS_CWRITER |
This interface is accessible as follows:
27/03/2019 21:59; e5e4db499bf9867a4b93324c4dbac985d3da9376
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