net: ethernet: ti: cpdma: switch to use genalloc
TI CPDMA currently uses a bitmap for tracking descriptors alloactions allocations, but The genalloc already handles the same and can be used as with special memory (SRAM) as with DMA cherent memory chank (dma_alloc_coherent()). Hence, switch to using genalloc and add desc_num property for each channel for limitation of max number of allowed descriptors for each CPDMA channel. This patch do not affect on net throuput. Acked-by: Mugunthan V N <mugunthanvnm@ti.com> Tested-by: Ivan Khoronzhuk <ivan.khoronzhuk@linaro.org> Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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