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| author | Joerg Roedel <joerg.roedel@amd.com> | 2012-06-12 16:51:12 +0200 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2012-07-17 12:17:12 +0200 |
| commit | b9b1ce707d81ec63c04e4fd8c34699ada950e6dc (patch) | |
| tree | 987bf73e990db4268325e25149cd7397de0dfea9 /drivers/iommu | |
| parent | 62410eeb40ef355fa47f63886542f4dacef13ba9 (diff) | |
| download | lwn-b9b1ce707d81ec63c04e4fd8c34699ada950e6dc.tar.gz lwn-b9b1ce707d81ec63c04e4fd8c34699ada950e6dc.zip | |
iommu/amd: Introduce amd_iommu_init_dma routine
This function will initialize everthing necessary so that
devices can do DMA. This includes dma_ops and iommu_ops.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/amd_iommu_init.c | 27 |
1 files changed, 20 insertions, 7 deletions
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c index 966d8ac9e147..53828b61e9ac 100644 --- a/drivers/iommu/amd_iommu_init.c +++ b/drivers/iommu/amd_iommu_init.c @@ -1627,8 +1627,6 @@ int __init amd_iommu_init_hardware(void) enable_iommus(); - amd_iommu_init_notifier(); - register_syscore_ops(&amd_iommu_syscore_ops); return ret; @@ -1669,6 +1667,25 @@ static bool detect_ivrs(void) return true; } +static int amd_iommu_init_dma(void) +{ + int ret; + + if (iommu_pass_through) + ret = amd_iommu_init_passthrough(); + else + ret = amd_iommu_init_dma_ops(); + + if (ret) + return ret; + + amd_iommu_init_api(); + + amd_iommu_init_notifier(); + + return 0; +} + /* * This is the core init function for AMD IOMMU hardware in the system. * This function is called from the generic x86 DMA layer initialization @@ -1690,11 +1707,7 @@ static int __init amd_iommu_init(void) if (ret) goto free; - if (iommu_pass_through) - ret = amd_iommu_init_passthrough(); - else - ret = amd_iommu_init_dma_ops(); - + ret = amd_iommu_init_dma(); if (ret) goto free; |