linux-kernel - [PATCH 3/4] ACPI: scan: Add support for RISC-V in acpi_iommu_configure

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Message-ID: <20250514055723.1328557-4-sunilvl@ventanamicro.com>
Date: Wed, 14 May 2025 11:27:22 +0530
From: Sunil V L <sunilvl@...tanamicro.com>
To: linux-kernel@...r.kernel.org,
	linux-riscv@...ts.infradead.org,
	linux-acpi@...r.kernel.org,
	iommu@...ts.linux.dev,
	acpica-devel@...ts.linux.dev
Cc: Paul Walmsley <paul.walmsley@...ive.com>,
	Palmer Dabbelt <palmer@...belt.com>,
	Albert Ou <aou@...s.berkeley.edu>,
	Alexandre Ghiti <alex@...ti.fr>,
	"Rafael J . Wysocki" <rafael@...nel.org>,
	Len Brown <lenb@...nel.org>,
	Tomasz Jeznach <tjeznach@...osinc.com>,
	Joerg Roedel <joro@...tes.org>,
	Will Deacon <will@...nel.org>,
	Robin Murphy <robin.murphy@....com>,
	Atish Kumar Patra <atishp@...osinc.com>,
	Anup Patel <apatel@...tanamicro.com>,
	Andrew Jones <ajones@...tanamicro.com>,
	Sunil V L <sunilvl@...tanamicro.com>
Subject: [PATCH 3/4] ACPI: scan: Add support for RISC-V in acpi_iommu_configure_id()

acpi_iommu_configure_id() currently supports only IORT (ARM) and VIOT.
Add support for RISC-V as well.

Signed-off-by: Sunil V L <sunilvl@...tanamicro.com>
---
 drivers/acpi/scan.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index fb1fe9f3b1a3..70f57d58fd61 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -11,6 +11,7 @@
 #include <linux/kernel.h>
 #include <linux/acpi.h>
 #include <linux/acpi_iort.h>
+#include <linux/acpi_rimt.h>
 #include <linux/acpi_viot.h>
 #include <linux/iommu.h>
 #include <linux/signal.h>
@@ -1628,8 +1629,12 @@ static int acpi_iommu_configure_id(struct device *dev, const u32 *id_in)
 	}
 
 	err = iort_iommu_configure_id(dev, id_in);
-	if (err && err != -EPROBE_DEFER)
-		err = viot_iommu_configure(dev);
+	if (err && err != -EPROBE_DEFER) {
+		err = rimt_iommu_configure_id(dev, id_in);
+		if (err && err != -EPROBE_DEFER)
+			err = viot_iommu_configure(dev);
+	}
+
 	mutex_unlock(&iommu_probe_device_lock);
 
 	return err;
-- 
2.43.0