Messages in this thread | | | Date | Sun, 20 Jul 2008 12:39:00 -0700 | From | Arjan van de Ven <> | Subject | Re: dma_alloc_coherent() on PPC32: physical addresses above 2G possible? |
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On Sun, 20 Jul 2008 21:25:51 +0200 Stefan Richter <stefanr@s5r6.in-berlin.de> wrote:
> > Later on: > > if (dev->needs_dma_mask_workaround) > pci_set_consistent_dma_mask(pdev, DMA_31BIT_MASK); > allocate_something_special; > if (dev->needs_dma_mask_workaround) > pci_set_consistent_dma_mask(pdev, DMA_32BIT_MASK); > > Or is there a variant of dma_alloc_coherent() which directly accepts a > mask argument?
something like this. But realistically, how many consistent/coherent allocations do you have? some ring buffers and other one time stuff surely... but not after that?
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