Messages in this thread | | | Date | Tue, 19 Oct 2004 15:52:14 +0200 | From | Christian Leber <> | Subject | Re: DMA memory allocation --how to more than 1 MB |
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On Tue, Oct 19, 2004 at 11:18:13AM +0530, Srinivas G. wrote: > I have a doubt about allocating the DMA memory using kmalloc OR > __get_dma_pages OR pci_alloc_consistent. I was unable to allocate the > memory greater than 1 MB using any one of the above memory functions. > > Is there any other method which will allocate the DMA memory greater > than 1 MB?
You should be able to get at least order 9, therefore 2 MB. With kernel 2.6 you should also be able to get order 10, therefore 4 MB. If you need more you have to puzzle the areas together.
The way wli suggested is better. But if this is no possible just make it a requierement to load the module while booting, then there are enough free areas.
Christian Leber
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