Message ID | 20201222123548.31680-9-nsaenzjulienne@suse.de |
---|---|
State | Superseded |
Delegated to: | Matthias Brugger |
Headers | show |
Series | Raspberry Pi 400/Compute Module 4 support | expand |
On 22.12.20 13:35, Nicolas Saenz Julienne wrote: > These functions, instead of relying on hard-coded platform-specific > address translations, make use of the DMA constraints provided by the DM > core. This allows for per-device translations. > > We can't yet get rid of the legacy phys_to_bus()/bus_to_phys() > implementations as some of its users are not integrated into the > device model. > > Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne@suse.de> > Reviewed-by: Simon Glass <sjg@chromium.org> Reviewed-by: Stefan Roese <sr@denx.de> Thanks, Stefan > --- > Changes since v2: > - Use CONFIG_DM_DMA > > include/phys2bus.h | 16 ++++++++++++++++ > 1 file changed, 16 insertions(+) > > diff --git a/include/phys2bus.h b/include/phys2bus.h > index dc9b8e5a25..516d630aea 100644 > --- a/include/phys2bus.h > +++ b/include/phys2bus.h > @@ -21,4 +21,20 @@ static inline unsigned long bus_to_phys(unsigned long bus) > } > #endif > > +#if CONFIG_IS_ENABLED(DM_DMA) > +#include <dm/device.h> > + > +static inline dma_addr_t dev_phys_to_bus(struct udevice *dev, > + phys_addr_t phys) > +{ > + return phys - dev->dma_offset; > +} > + > +static inline phys_addr_t dev_bus_to_phys(struct udevice *dev, > + dma_addr_t bus) > +{ > + return bus + dev->dma_offset; > +} > +#endif > + > #endif > Viele Grüße, Stefan
diff --git a/include/phys2bus.h b/include/phys2bus.h index dc9b8e5a25..516d630aea 100644 --- a/include/phys2bus.h +++ b/include/phys2bus.h @@ -21,4 +21,20 @@ static inline unsigned long bus_to_phys(unsigned long bus) } #endif +#if CONFIG_IS_ENABLED(DM_DMA) +#include <dm/device.h> + +static inline dma_addr_t dev_phys_to_bus(struct udevice *dev, + phys_addr_t phys) +{ + return phys - dev->dma_offset; +} + +static inline phys_addr_t dev_bus_to_phys(struct udevice *dev, + dma_addr_t bus) +{ + return bus + dev->dma_offset; +} +#endif + #endif