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    Subject[PATCH 5/9] x86/iommu: change GART to use dma_ops register interface
    Date
    Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
    ---
    arch/x86/kernel/pci-gart_64.c | 9 +++++++++
    1 files changed, 9 insertions(+), 0 deletions(-)

    diff --git a/arch/x86/kernel/pci-gart_64.c b/arch/x86/kernel/pci-gart_64.c
    index 508ef47..c5891c9 100644
    --- a/arch/x86/kernel/pci-gart_64.c
    +++ b/arch/x86/kernel/pci-gart_64.c
    @@ -533,6 +533,12 @@ gart_free_coherent(struct device *dev, size_t size, void *vaddr,
    free_pages((unsigned long)vaddr, get_order(size));
    }

    +static int gart_device_supported(struct device *dev)
    +{
    + /* GART remaps _everything_ (including CPU memory accesses) */
    + return 1;
    +}
    +
    static int no_agp;

    static __init unsigned long check_iommu_size(unsigned long aper, u64 aper_size)
    @@ -736,6 +742,7 @@ static struct dma_mapping_ops gart_dma_ops = {
    .unmap_sg = gart_unmap_sg,
    .alloc_coherent = gart_alloc_coherent,
    .free_coherent = gart_free_coherent,
    + .device_supported = gart_device_supported,
    };

    void gart_iommu_shutdown(void)
    @@ -874,6 +881,8 @@ void __init gart_iommu_init(void)
    iommu_gatt_base[i] = gart_unmapped_entry;

    flush_gart();
    +
    + x86_register_dma_ops(&gart_dma_ops, DMA_OPS_TYPE_HW);
    dma_ops = &gart_dma_ops;
    }

    --
    1.5.6.4



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