Eric Auger <[email protected]> writes:
> At the moment the IO space limit is hardcoded to > QPCI_PIO_LIMIT = 0x10000. When accesses are performed to a bar, > the base address of this latter is compared against the limit > to decide whether we perform an IO or a memory access. > > On ARM, we cannot keep this PIO limit as the arm-virt machine > uses [0x3eff0000, 0x3f000000 ] for the IO space map and we > are mandated to allocate at 0x0. > > Add a new flag in QPCIBar indicating whether it is an IO bar > or a memory bar. This flag is set on QPCIBar allocation and > provisionned based on the BAR configuration. Then the new flag > is used in access functions and in iomap() function. > > Signed-off-by: Eric Auger <[email protected]> > Reviewed-by: Thomas Huth <[email protected]> Reviewed-by: Alex Bennée <[email protected]> -- Alex Bennée
