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of/pci: Add IORESOURCE_MEM_64 to resource flags for 64-bit memory addresses

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Many other resource flag parsers already add this flag when the input
has bits 24 & 25 set, so update this one to do the same.

Some devices (like virtio-net) have more than one memory resource
(like MMIO32 and MMIO64) and without this flag it would be needed to
verify the address range to know which one is which.

Signed-off-by: Leonardo Bras <leobras.c@gmail.com>
Link: https://lore.kernel.org/r/20210415180050.373791-1-leobras.c@gmail.com
Signed-off-by: Rob Herring <robh@kernel.org>
This commit is contained in:
Leonardo Bras 2021-04-15 15:00:51 -03:00 committed by Rob Herring
parent b419362270
commit 9d57e61bf7
1 changed files with 4 additions and 1 deletions
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5
drivers/of/address.c
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@ -116,9 +116,12 @@ static unsigned int of_bus_pci_get_flags(const __be32 *addr)
flags |= IORESOURCE_IO;
break;
case 0x02: /* 32 bits */
case 0x03: /* 64 bits */
flags |= IORESOURCE_MEM;
break;
case 0x03: /* 64 bits */
flags |= IORESOURCE_MEM | IORESOURCE_MEM_64;
break;
}
if (w & 0x40000000)
flags |= IORESOURCE_PREFETCH;