From: Lizhi Hou <lizhi.hou@amd.com>
To: <ogabbay@kernel.org>, <quic_jhugo@quicinc.com>,
<dri-devel@lists.freedesktop.org>, <mario.limonciello@amd.com>,
<karol.wachowski@linux.intel.com>
Cc: Lizhi Hou <lizhi.hou@amd.com>, <linux-kernel@vger.kernel.org>,
<max.zhen@amd.com>, <sonal.santan@amd.com>
Subject: [PATCH V1] accel/amdxdna: Block running when IOMMU is off
Date: Wed, 20 May 2026 15:35:31 -0700 [thread overview]
Message-ID: <20260520223531.1403302-1-lizhi.hou@amd.com> (raw)
The AIE2 device firmware requires IOMMU on.
Closes: https://gitlab.freedesktop.org/drm/amd/-/work_items/5319
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
---
drivers/accel/amdxdna/aie2_pci.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/drivers/accel/amdxdna/aie2_pci.c b/drivers/accel/amdxdna/aie2_pci.c
index c4d345d4c76b..22f66c7f534d 100644
--- a/drivers/accel/amdxdna/aie2_pci.c
+++ b/drivers/accel/amdxdna/aie2_pci.c
@@ -490,6 +490,11 @@ static int aie2_init(struct amdxdna_dev *xdna)
return -EINVAL;
}
+ if (!xdna->group) {
+ XDNA_ERR(xdna, "Running without IOMMU not supported");
+ return -EINVAL;
+ }
+
ndev = drmm_kzalloc(&xdna->ddev, sizeof(*ndev), GFP_KERNEL);
if (!ndev)
return -ENOMEM;
--
2.34.1
next reply other threads:[~2026-05-20 22:36 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-05-20 22:35 Lizhi Hou [this message]
2026-05-21 0:57 ` [PATCH V1] accel/amdxdna: Block running when IOMMU is off Mario Limonciello
2026-05-21 3:43 ` Lizhi Hou
2026-05-21 4:32 ` Mario Limonciello
2026-05-21 17:28 ` Lizhi Hou
2026-05-25 11:10 ` Claude review: " Claude Code Review Bot
2026-05-25 11:10 ` Claude Code Review Bot
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