Hi,
We allocate memory for DMA operation on PCI device using
pci_alloc_constistent().
I want to know how this function is boil down to the actual instruction which
locks the page in the RAM so that it cannot be paged out and dma can do its
work.
Can anybody tell me which instructions do we use to set this page entry in
TLB and page table?
What bit gets set in the PTE for this?
Regards,
Parav Pandit
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