diff mbox series

[v9,2/7] iommu: Support ops registration for CDX bus

Message ID 20230307131917.30605-3-nipun.gupta@amd.com (mailing list archive)
State New, archived
Headers show
Series add support for CDX bus | expand

Commit Message

Nipun Gupta March 7, 2023, 1:19 p.m. UTC 
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>
Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com>
Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com>
---
 drivers/iommu/iommu.c | 4 ++++
 1 file changed, 4 insertions(+)

Comments

Baolu Lu March 8, 2023, 1:53 a.m. UTC | #1 
On 3/7/23 9:19 PM, Nipun Gupta wrote:
> 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>
> Reviewed-by: Pieter Jansen van Vuuren<pieter.jansen-van-vuuren@amd.com>
> Tested-by: Nikhil Agarwal<nikhil.agarwal@amd.com>

Nit:

The bus iommu ops is about to retire. So probably the commit title could
be "iommu: Add iommu probe for CDX bus"?

Anyway,

Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>

Best regards,
baolu
diff mbox series

Patch

diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 10db680acaed..0025a631b8e1 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
 };
 
 /*