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Haavard's dma-slave interface would like to test for exclusive access to a channel. The standard channel refcounting is not sufficient in that it tracks more than just client references, it is also inaccurate as reference counts are percpu until the channel is removed. This change also enables a future fix to deallocate resources when a client declines to use a capable channel. Acked-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Signed-off-by: Dan Williams <dan.j.williams@intel.com> |
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| .. | ||
| dmaengine.c | ||
| fsldma.c | ||
| fsldma.h | ||
| ioat_dca.c | ||
| ioat_dma.c | ||
| ioat.c | ||
| ioatdma_hw.h | ||
| ioatdma_registers.h | ||
| ioatdma.h | ||
| iop-adma.c | ||
| iovlock.c | ||
| Kconfig | ||
| Makefile | ||