• Oded Gabbay's avatar
    habanalabs: fix dma_addr passed to dma_mmap_coherent · a9d4ef64
    Oded Gabbay authored
    When doing dma_alloc_coherent in the driver, we add a certain hard-coded
    offset to the DMA address before returning to the callee function. This
    offset is needed when our device use this DMA address to perform
    outbound transactions to the host.
    
    However, if we want to map the DMA'able memory to the user via
    dma_mmap_coherent(), we need to pass the original dma address, without
    this offset. Otherwise, we will get erronouos mapping.
    Signed-off-by: default avatarOded Gabbay <ogabbay@kernel.org>
    a9d4ef64
gaudi.c 240 KB