diff options
| author | Wan Zongshun <Vincent.Wan@amd.com> | 2016-05-10 09:21:01 -0400 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2016-06-15 12:00:10 +0200 |
| commit | 0076cd3d063a43f69eba2d0a1d13927897c8ed35 (patch) | |
| tree | 61aa18577cce2a4417fb2ee609b3a093ec4d7b6f /drivers/iommu/amd_iommu.c | |
| parent | 5edb56491d4812c42175980759da53388e5d86f5 (diff) | |
iommu/amd: Set AMD iommu callbacks for platform bus driver
AMD has more drivers will use ACPI to platform bus driver later,
all those devices need iommu support, for example: eMMC driver.
For latest AMD eMMC controller, it will utilize sdhci-acpi.c driver,
which will rely on platform bus to match device and driver, where we
will set 'dev' of struct platform_device as map_sg parameter passing
to iommu driver for DMA request, so the iommu-ops are needed on the
platform bus.
Signed-off-by: Wan Zongshun <Vincent.Wan@amd.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/amd_iommu.c')
| -rw-r--r-- | drivers/iommu/amd_iommu.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c index 634f636393d5..921111e65c8c 100644 --- a/drivers/iommu/amd_iommu.c +++ b/drivers/iommu/amd_iommu.c @@ -21,6 +21,7 @@ #include <linux/pci.h> #include <linux/acpi.h> #include <linux/amba/bus.h> +#include <linux/platform_device.h> #include <linux/pci-ats.h> #include <linux/bitmap.h> #include <linux/slab.h> @@ -2958,6 +2959,9 @@ int __init amd_iommu_init_api(void) if (err) return err; #endif + err = bus_set_iommu(&platform_bus_type, &amd_iommu_ops); + if (err) + return err; return 0; } |