17 Nov
2011
17 Nov
'11
9:41 p.m.
On Thu Nov 17, 2011 at 12:49:31 +0400, Sartakov A. Vasily wrote:
So.. usb host via ehci uses dma and i have problem in pool_alloc_page(mm/dmapool.c): dma_alloc_coherent (arhc/l4/mm/) returns 0, cos l4x_dma_mem_alloc returns 0 too.
I guess you need to put some 'dmamem' onto your vbus:
DMAMEM => new Device() { .hid = "dmamem"; new-res Mmio_ram(<size-in-bytes>, 0); }
Adam
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Adam adam@os.inf.tu-dresden.de
Lackorzynski http://os.inf.tu-dresden.de/~adam/