08f72ab5dc
addresses (i.e. uncacheable). ACPI in particular uses pmap_mapdev()
rather excessively (number of calls) just to get a valid KVA. To
that end, have pmap_mapdev():
1. cache the last result so that we don't waste time for multiple
consecutive invocations with the same PA/SZ.
2. find the memory descriptor that covers the PA and return NULL
if none was found or when the PA is for a common DRAM address.
3. Use either a region 6 or region 7 KVA, in accordance with the
memory attribute.
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| .. | ||
| acpica | ||
| compile | ||
| conf | ||
| disasm | ||
| ia32 | ||
| ia64 | ||
| include | ||
| isa | ||
| pci | ||