Address offset: 0x347
M-mode Interrupt-level Threshold
Holds an 8-bit field for the threshold level of M-mode. Typical use is to implement critical sections. The current hart’s effective interrupt level would then be: effective_level = max(MINTSTATUS.MIL, MINTTHRESH.TH)
| Bit number | 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 | |||
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| ID | A | A | A | A | A | A | A | A | |||||||||||||||||||||||||||
| Reset 0x0000001F | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | |||
| ID | R/W | Field | Value ID | Value | Description | ||||||||||||||||||||||||||||||
| A |
RW |
TH |
M-Mode Interrupt-level Threshold |
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DISABLED |
0x0 |
Threshold disabled |
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THRESHLEVEL0 |
0x3F |
Threshold level 0 This enumerator is deprecated. |
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THRESHLEVEL1 |
0x7F |
Threshold level 1 This enumerator is deprecated. |
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THRESHLEVEL2 |
0xBF |
Threshold level 2 This enumerator is deprecated. |
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THRESHLEVEL3 |
0xFF |
Threshold level 3 This enumerator is deprecated. |
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