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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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