From: Sunil V L <sunilvl@ventanamicro.com>
To: linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org,
linux-acpi@vger.kernel.org, iommu@lists.linux.dev
Cc: Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Alexandre Ghiti <alex@ghiti.fr>,
"Rafael J . Wysocki" <rafael@kernel.org>,
Len Brown <lenb@kernel.org>,
Tomasz Jeznach <tjeznach@rivosinc.com>,
Joerg Roedel <joro@8bytes.org>, Will Deacon <will@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
Atish Kumar Patra <atishp@rivosinc.com>,
Anup Patel <apatel@ventanamicro.com>,
Andrew Jones <ajones@ventanamicro.com>,
Sunil V L <sunilvl@ventanamicro.com>,
"Rafael J . Wysocki" <rafael.j.wysocki@intel.com>
Subject: [PATCH v4 2/3] ACPI: scan: Add support for RISC-V in acpi_iommu_configure_id()
Date: Thu, 10 Jul 2025 14:26:56 +0530 [thread overview]
Message-ID: <20250710085657.2844330-3-sunilvl@ventanamicro.com> (raw)
In-Reply-To: <20250710085657.2844330-1-sunilvl@ventanamicro.com>
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@ventanamicro.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---
drivers/acpi/scan.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index fb1fe9f3b1a3..f022f32de8a4 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 +1629,11 @@ 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 = 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
next prev parent reply other threads:[~2025-07-10 8:57 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-10 8:56 [PATCH v4 0/3] RISC-V: Add ACPI support for IOMMU Sunil V L
2025-07-10 8:56 ` [PATCH v4 1/3] ACPI: RISC-V: Add support for RIMT Sunil V L
2025-07-16 4:19 ` Anup Patel
2025-07-10 8:56 ` Sunil V L [this message]
2025-07-10 8:56 ` [PATCH v4 3/3] iommu/riscv: Add ACPI support Sunil V L
2025-07-13 13:34 ` Will Deacon
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