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3 Commits

Author SHA1 Message Date
Idan Horowitz
3aa1bd520b Kernel: Support re-mapping MMIOVMObject-backed regions 
This is required for example when write combine is enabled on a region
after the initial mapping.
 2024-06-25 17:46:37 +02:00
Idan Horowitz
26cff62a0a Kernel: Rename Memory::PhysicalPage to Memory::PhysicalRAMPage 
Since these are now only used to represent RAM pages, (and not MMIO
pages) rename them to make their purpose more obvious.
 2024-05-17 15:38:28 -06:00
Idan Horowitz
827322c139 Kernel: Stop allocating physical pages for mapped MMIO regions 
As MMIO is placed at fixed physical addressed, and does not need to be
backed by real RAM physical pages, there's no need to use PhysicalPage
instances to track their pages.
This results in slightly reduced allocations, but more importantly
makes MMIO addresses which end up after the normal RAM ranges work,
like 64-bit PCI BARs usually are.
 2024-05-17 15:38:28 -06:00