| Message ID | 20210826200720.2196827-2-philmd@redhat.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | hw/usb: Always expect 'dma' link property to be set to simplify | expand |
On 26/08/2021 21:07, Philippe Mathieu-Daudé wrote: > pci_get_address_space() returns an AddressSpace. In some > cases we want a MemoryRegion. Add the pci_dma_memory_region() > equivalent helper. > > Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> > --- > include/hw/pci/pci.h | 5 +++++ > 1 file changed, 5 insertions(+) > > diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h > index d0f4266e372..5860f42e400 100644 > --- a/include/hw/pci/pci.h > +++ b/include/hw/pci/pci.h > @@ -786,6 +786,11 @@ static inline AddressSpace *pci_get_address_space(PCIDevice *dev) > return &dev->bus_master_as; > } > > +static inline MemoryRegion *pci_dma_memory_region(PCIDevice *dev) > +{ > + return &dev->bus_master_container_region; > +} > + > /** > * pci_dma_rw: Read from or write to an address space from PCI device. > * This patch doesn't quite feel right: there are already a number of devices that have been using pci_get_address_space() for some time without requiring access to the underlying MemoryRegion. So then the first question I ask myself when I see this patch is why do we suddenly need it now? ATB, Mark.
diff --git a/include/hw/pci/pci.h b/include/hw/pci/pci.h index d0f4266e372..5860f42e400 100644 --- a/include/hw/pci/pci.h +++ b/include/hw/pci/pci.h @@ -786,6 +786,11 @@ static inline AddressSpace *pci_get_address_space(PCIDevice *dev) return &dev->bus_master_as; } +static inline MemoryRegion *pci_dma_memory_region(PCIDevice *dev) +{ + return &dev->bus_master_container_region; +} + /** * pci_dma_rw: Read from or write to an address space from PCI device. *
pci_get_address_space() returns an AddressSpace. In some cases we want a MemoryRegion. Add the pci_dma_memory_region() equivalent helper. Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> --- include/hw/pci/pci.h | 5 +++++ 1 file changed, 5 insertions(+)