On 2/21/2023 5:26 PM, Robin Murphy wrote:

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On 2023-02-17 13:28, Nipun Gupta wrote:

Nit: subject should be "iommu: Support ops registration for CDX bus",
since this is no longer a driver-specific thing.

Sure, will update the subject in the next spin.

Thanks,
Nipun

Thanks,
Robin.

quoted

With new CDX bus supported for AMD FPGA devices on ARM
platform, the bus requires registration for the SMMU v3
driver.

Signed-off-by: Nipun Gupta <nipun.gupta@amd.com>
Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com>
---
  drivers/iommu/iommu.c | 4 ++++
  1 file changed, 4 insertions(+)

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 1fbe53354532..c2ff7754a4b3 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c

@@ -28,6 +28,7 @@

  #include <linux/fsl/mc.h>
  #include <linux/module.h>
  #include <linux/cc_platform.h>
+#include <linux/cdx/cdx_bus.h>
  #include <trace/events/iommu.h>
  #include <linux/sched/mm.h>
  #include <linux/msi.h>

@@ -129,6 +130,9 @@ static struct bus_type * const iommu_buses[] = {

  #ifdef CONFIG_TEGRA_HOST1X_CONTEXT_BUS
      &host1x_context_device_bus_type,
  #endif
+#ifdef CONFIG_CDX_BUS
+     &cdx_bus_type,
+#endif
  };

  /*