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    Subject[PATCH v11 10/60] powerpc/PCI: Add IORESOURCE_MEM_64 for 64-bit resource in OF parsing
    Date
    For device resource PREF bit setting under bridge 64-bit pref resource,
    we need to make sure only set PREF for 64bit resource.

    This patch set IORESOUCE_MEM_64 for 64bit resource during OF device resource
    flags parsing.

    Link: https://bugzilla.kernel.org/show_bug.cgi?id=96261
    Link: https://bugzilla.kernel.org/show_bug.cgi?id=96241
    Signed-off-by: Yinghai Lu <yinghai@kernel.org>
    Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
    Cc: Paul Mackerras <paulus@samba.org>
    Cc: Michael Ellerman <mpe@ellerman.id.au>
    Cc: Gavin Shan <gwshan@linux.vnet.ibm.com>
    Cc: Yijing Wang <wangyijing@huawei.com>
    Cc: Anton Blanchard <anton@samba.org>
    Cc: linuxppc-dev@lists.ozlabs.org
    ---
    arch/powerpc/kernel/pci_of_scan.c | 4 +++-
    1 file changed, 3 insertions(+), 1 deletion(-)

    diff --git a/arch/powerpc/kernel/pci_of_scan.c b/arch/powerpc/kernel/pci_of_scan.c
    index 719f225..476b8ac5 100644
    --- a/arch/powerpc/kernel/pci_of_scan.c
    +++ b/arch/powerpc/kernel/pci_of_scan.c
    @@ -44,8 +44,10 @@ static unsigned int pci_parse_of_flags(u32 addr0, int bridge)

    if (addr0 & 0x02000000) {
    flags = IORESOURCE_MEM | PCI_BASE_ADDRESS_SPACE_MEMORY;
    - flags |= (addr0 >> 22) & PCI_BASE_ADDRESS_MEM_TYPE_64;
    flags |= (addr0 >> 28) & PCI_BASE_ADDRESS_MEM_TYPE_1M;
    + if (addr0 & 0x01000000)
    + flags |= IORESOURCE_MEM_64
    + | PCI_BASE_ADDRESS_MEM_TYPE_64;
    if (addr0 & 0x40000000)
    flags |= IORESOURCE_PREFETCH
    | PCI_BASE_ADDRESS_MEM_PREFETCH;
    --
    1.8.4.5
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