66542c3b9d
This patch adds shadow mapping to the MMU module. The shadow mapping allows traversing the page table in host memory rather reading each PTE from the device memory. It brings better performance and avoids reading from invalid device address upon PCI errors. Only at the end of map/unmap flow, writings to the device are performed in order to sync the H/W page tables with the shadow ones. Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai> Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com> |
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| mmu | ||
| pci | ||