Messages in this thread | | | Date | Fri, 14 Nov 2008 22:17:04 -0800 | From | Andrew Morton <> | Subject | Re: [PATCH 08/13] dmatest: convert to dma_request_channel |
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On Fri, 14 Nov 2008 14:34:58 -0700 Dan Williams <dan.j.williams@intel.com> wrote:
> static int __init dmatest_init(void) > { > - dma_cap_set(DMA_MEMCPY, dmatest_client.cap_mask); > - dma_async_client_register(&dmatest_client); > - dma_async_client_chan_request(&dmatest_client); > + dma_cap_mask_t mask; > + struct dma_chan *chan; > + > + dma_cap_zero(mask); > + dma_cap_set(DMA_MEMCPY, mask); > + for (;;) { > + chan = dma_request_channel(mask, filter, NULL); > + if (chan) { > + if (dmatest_add_channel(chan) == 0) > + continue;
hrm. I trust this loop can't lock up the box.
> + else > + dma_release_channel(chan); > + } else > + break; /* no more channels available */ > + if (max_channels && nr_channels >= max_channels) > + break; /* we have all we need */ > + }
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