Messages in this thread Patch in this message | | | From | Leonardo Bras <> | Subject | [PATCH 1/1] of/pci: Add IORESOURCE_MEM_64 to resource flags for 64-bit memory addresses | Date | Thu, 15 Apr 2021 15:00:51 -0300 |
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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> --- drivers/of/address.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/drivers/of/address.c b/drivers/of/address.c index 73ddf2540f3f..dc7147843783 100644 --- a/drivers/of/address.c +++ b/drivers/of/address.c @@ -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; -- 2.30.2
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