MMU_ChangingUncachedEntries ARMop (changes)
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» OS_MMUControl 2
» MMU_ChangingUncachedEntries ARMop
MMU_ChangingUncachedEntries ARMop
| Entry | |
|---|---|
| R0 | Logical address of first page entry (page aligned) |
| R1 | Number of page entries ( >= 1) |
| Exit | |
|---|---|
| R0 | Corrupt |
Use
Call this when the MMU mapping is has about just to be changed for a contiguous range of uncacheable page entries (multiple of 4k).
Notes
The operation must typically invalidate the TLB or TLBs over the range of the entries. On some systems the write buffer will also be drained.
See also
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