x86: memory: allow configuring caching policies #59
Description
Caching
It would be nice to allow configuring the caching policies when allocating an address.
This will soon be necessary when using DMA transfers on PCI or USB devices.
Design ideas
The caching policies could be configured using one, or several, of the following APIs:
- Configure policies using KMALLOC/VM flags
- Configure policies manually through a function call
vm_set_policy(),mmu_set_policy()
Documentation
- SDM chapter 12: Meory cache control