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| author | Joerg Roedel <joerg.roedel@amd.com> | 2011-09-06 16:03:26 +0200 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2011-10-21 14:37:19 +0200 |
| commit | 905d66c1e5dc8149e111f04a32bb193f25da1d53 (patch) | |
| tree | 3b4d55034f1ca58a7956c88cb71f6af8cda2b697 /drivers/iommu/iommu.c | |
| parent | ff21776d12ff7993a6b236b8273ef62777d25dfb (diff) | |
| download | lwn-905d66c1e5dc8149e111f04a32bb193f25da1d53.tar.gz lwn-905d66c1e5dc8149e111f04a32bb193f25da1d53.zip | |
iommu/core: Add bus_type parameter to iommu_domain_alloc
This is necessary to store a pointer to the bus-specific
iommu_ops in the iommu-domain structure. It will be used
later to call into bus-specific iommu-ops.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'drivers/iommu/iommu.c')
| -rw-r--r-- | drivers/iommu/iommu.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c index 3343264f5105..46e1c24f2f43 100644 --- a/drivers/iommu/iommu.c +++ b/drivers/iommu/iommu.c @@ -16,6 +16,7 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ +#include <linux/device.h> #include <linux/kernel.h> #include <linux/bug.h> #include <linux/types.h> @@ -71,15 +72,26 @@ bool iommu_found(void) } EXPORT_SYMBOL_GPL(iommu_found); -struct iommu_domain *iommu_domain_alloc(void) +struct iommu_domain *iommu_domain_alloc(struct bus_type *bus) { struct iommu_domain *domain; + struct iommu_ops *ops; int ret; + if (bus->iommu_ops) + ops = bus->iommu_ops; + else + ops = iommu_ops; + + if (ops == NULL) + return NULL; + domain = kmalloc(sizeof(*domain), GFP_KERNEL); if (!domain) return NULL; + domain->ops = ops; + ret = iommu_ops->domain_init(domain); if (ret) goto out_free; |