From: Anton Blanchard <anton@samba•org>
To: linuxppc-dev@ozlabs•org
Cc: paulus@samba•org
Subject: [PATCH] powerpc: cleanup dma_mapping_ops
Date: Sat, 10 Jun 2006 23:04:39 +1000 [thread overview]
Message-ID: <20060610130438.GR23891@krispykreme> (raw)
For pseries IOMMU bypass I want to be able to fall back to the regular
IOMMU ops. Do this by creating a dma_mapping_ops struct, and convert
the others while at it.
Signed-off-by: Anton Blanchard <anton@samba•org>
---
Index: build/arch/powerpc/kernel/pci_iommu.c
===================================================================
--- build.orig/arch/powerpc/kernel/pci_iommu.c 2006-06-10 11:37:31.000000000 +1000
+++ build/arch/powerpc/kernel/pci_iommu.c 2006-06-10 22:35:25.000000000 +1000
@@ -148,13 +148,17 @@ static int pci_iommu_dma_supported(struc
return 1;
}
+struct dma_mapping_ops pci_iommu_ops = {
+ .alloc_coherent = pci_iommu_alloc_coherent,
+ .free_coherent = pci_iommu_free_coherent,
+ .map_single = pci_iommu_map_single,
+ .unmap_single = pci_iommu_unmap_single,
+ .map_sg = pci_iommu_map_sg,
+ .unmap_sg = pci_iommu_unmap_sg,
+ .dma_supported = pci_iommu_dma_supported,
+};
+
void pci_iommu_init(void)
{
- pci_dma_ops.alloc_coherent = pci_iommu_alloc_coherent;
- pci_dma_ops.free_coherent = pci_iommu_free_coherent;
- pci_dma_ops.map_single = pci_iommu_map_single;
- pci_dma_ops.unmap_single = pci_iommu_unmap_single;
- pci_dma_ops.map_sg = pci_iommu_map_sg;
- pci_dma_ops.unmap_sg = pci_iommu_unmap_sg;
- pci_dma_ops.dma_supported = pci_iommu_dma_supported;
+ pci_dma_ops = pci_iommu_ops;
}
Index: build/arch/powerpc/kernel/pci_direct_iommu.c
===================================================================
--- build.orig/arch/powerpc/kernel/pci_direct_iommu.c 2006-06-08 10:57:36.000000000 +1000
+++ build/arch/powerpc/kernel/pci_direct_iommu.c 2006-06-10 22:35:25.000000000 +1000
@@ -82,13 +82,17 @@ static int pci_direct_dma_supported(stru
return mask < 0x100000000ull;
}
+static struct dma_mapping_ops pci_direct_ops = {
+ .alloc_coherent = pci_direct_alloc_coherent,
+ .free_coherent = pci_direct_free_coherent,
+ .map_single = pci_direct_map_single,
+ .unmap_single = pci_direct_unmap_single,
+ .map_sg = pci_direct_map_sg,
+ .unmap_sg = pci_direct_unmap_sg,
+ .dma_supported = pci_direct_dma_supported,
+};
+
void __init pci_direct_iommu_init(void)
{
- pci_dma_ops.alloc_coherent = pci_direct_alloc_coherent;
- pci_dma_ops.free_coherent = pci_direct_free_coherent;
- pci_dma_ops.map_single = pci_direct_map_single;
- pci_dma_ops.unmap_single = pci_direct_unmap_single;
- pci_dma_ops.map_sg = pci_direct_map_sg;
- pci_dma_ops.unmap_sg = pci_direct_unmap_sg;
- pci_dma_ops.dma_supported = pci_direct_dma_supported;
+ pci_dma_ops = pci_direct_ops;
}
Index: build/arch/powerpc/platforms/cell/iommu.c
===================================================================
--- build.orig/arch/powerpc/platforms/cell/iommu.c 2006-06-08 10:57:36.000000000 +1000
+++ build/arch/powerpc/platforms/cell/iommu.c 2006-06-10 22:35:25.000000000 +1000
@@ -473,6 +473,16 @@ static int cell_dma_supported(struct dev
return mask < 0x100000000ull;
}
+static struct dma_mapping_ops cell_iommu_ops = {
+ .alloc_coherent = cell_alloc_coherent,
+ .free_coherent = cell_free_coherent,
+ .map_single = cell_map_single,
+ .unmap_single = cell_unmap_single,
+ .map_sg = cell_map_sg,
+ .unmap_sg = cell_unmap_sg,
+ .dma_supported = cell_dma_supported,
+};
+
void cell_init_iommu(void)
{
int setup_bus = 0;
@@ -498,11 +508,5 @@ void cell_init_iommu(void)
}
}
- pci_dma_ops.alloc_coherent = cell_alloc_coherent;
- pci_dma_ops.free_coherent = cell_free_coherent;
- pci_dma_ops.map_single = cell_map_single;
- pci_dma_ops.unmap_single = cell_unmap_single;
- pci_dma_ops.map_sg = cell_map_sg;
- pci_dma_ops.unmap_sg = cell_unmap_sg;
- pci_dma_ops.dma_supported = cell_dma_supported;
+ pci_dma_ops = cell_iommu_ops;
}
reply other threads:[~2006-06-10 13:04 UTC|newest]
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