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dma: Define dma_context_memory and use in sysbus-ohci

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Define a new global dma_context_memory which is a DMAContext corresponding
to the global address_space_memory AddressSpace. This can be used by
sysbus peripherals like sysbus-ohci which need to do DMA.

In particular, use it in the sysbus-ohci device, which fixes a
segfault when attempting to use that device.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
This commit is contained in:
Peter Maydell 2012-10-29 11:34:32 +10:00 • committed by Paolo Bonzini
parent 4003e24fce
commit 9e11908f12
3 changed files with 11 additions and 1 deletions
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2
hw/usb/hcd-ohci.c
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@ -1851,7 +1851,7 @@ static int ohci_init_pxa(SysBusDevice *dev)
/* Cannot fail as we pass NULL for masterbus */
usb_ohci_init(&s->ohci, &dev->qdev, s->num_ports, s->dma_offset, NULL, 0,
NULL);
&dma_context_memory);
sysbus_init_irq(dev, &s->ohci.irq);
sysbus_init_mmio(dev, &s->ohci.mem);