linux-kernel - [PATCH v9 2/7] iommu: Support ops registration for CDX bus

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Message-ID: <20230307131917.30605-3-nipun.gupta@amd.com>
Date:   Tue, 7 Mar 2023 18:49:12 +0530
From:   Nipun Gupta <nipun.gupta@....com>
To:     <robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
        <gregkh@...uxfoundation.org>, <rafael@...nel.org>,
        <eric.auger@...hat.com>, <alex.williamson@...hat.com>,
        <cohuck@...hat.com>, <song.bao.hua@...ilicon.com>,
        <mchehab+huawei@...nel.org>, <maz@...nel.org>,
        <f.fainelli@...il.com>, <jeffrey.l.hugo@...il.com>,
        <saravanak@...gle.com>, <Michael.Srba@...nam.cz>,
        <mani@...nel.org>, <yishaih@...dia.com>, <jgg@...pe.ca>,
        <jgg@...dia.com>, <robin.murphy@....com>, <will@...nel.org>,
        <joro@...tes.org>, <masahiroy@...nel.org>,
        <ndesaulniers@...gle.com>, <rdunlap@...radead.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kbuild@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>
CC:     <okaya@...nel.org>, <harpreet.anand@....com>,
        <nikhil.agarwal@....com>, <michal.simek@....com>,
        <pieter.jansen-van-vuuren@....com>, <pablo.cascon@....com>,
        <git@....com>, Nipun Gupta <nipun.gupta@....com>
Subject: [PATCH v9 2/7] iommu: Support ops registration for CDX bus

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@....com>
Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@....com>
Tested-by: Nikhil Agarwal <nikhil.agarwal@....com>
---
 drivers/iommu/iommu.c | 4 ++++
 1 file changed, 4 insertions(+)

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
 };
 
 /*
-- 
2.17.1