Commit 0076cd3d authored May 10, 2016 by Wan Zongshun Committed by Joerg Roedel Jun 15, 2016

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>

parent 5edb5649

drivers/iommu/amd_iommu.c

+4 −0

Original line number	Original line	Diff line number	Diff line
	@@ -21,6 +21,7 @@
	#include <linux/pci.h>		#include <linux/pci.h>
	#include <linux/acpi.h>		#include <linux/acpi.h>
	#include <linux/amba/bus.h>		#include <linux/amba/bus.h>
			#include <linux/platform_device.h>
	#include <linux/pci-ats.h>		#include <linux/pci-ats.h>
	#include <linux/bitmap.h>		#include <linux/bitmap.h>
	#include <linux/slab.h>		#include <linux/slab.h>
	@@ -2958,6 +2959,9 @@ int __init amd_iommu_init_api(void)
	if (err)		if (err)
	return err;		return err;
	#endif		#endif
			err = bus_set_iommu(&platform_bus_type, &amd_iommu_ops);
			if (err)
			return err;
	return 0;		return 0;
	}		}