Thread (11 messages) 11 messages, 3 authors, 2023-02-22

Re: [PATCH v8 2/7] iommu/arm-smmu-v3: support ops registration for CDX bus

From: Robin Murphy <robin.murphy@arm.com>
Date: 2023-02-21 11:59:10
Also in: linux-devicetree, linux-kbuild, lkml

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.

Thanks,
Robin.
quoted hunk ↗ jump to hunk
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
  };
  
  /*
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