2015-05-04 17:16 GMT+09:00 Marek Szyprowski <[email protected]>: > Some bootloaders enable FIMD module and configure it as a simple > framebuffer to display boot logo or splash screen before booting the > kernel. Such framebuffer stays enabled until proper kernel driver gets > probbed. Usually it is configured in such a way, that it performs DMA > from the buffer located in system memory. To avoid IOMMU access fault > during system boot, additional identity mapping between system memory > and IO virtual address space must be created when IOMMU driver gets > enabled. > > Signed-off-by: Marek Szyprowski <[email protected]>
Acked-by: Krzysztof Kozlowski <[email protected]> Best regards, Krzysztof _______________________________________________ iommu mailing list [email protected] https://lists.linuxfoundation.org/mailman/listinfo/iommu
