linux-kernel - [PATCH 1/6] virtio-gpu api: add HSAKMT context

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Message-ID: <20251112074548.3718563-2-honglei1.huang@amd.com>
Date: Wed, 12 Nov 2025 15:45:43 +0800
From: Honglei Huang <honglei1.huang@....com>
To: David Airlie <airlied@...hat.com>, Gerd Hoffmann <kraxel@...hat.com>,
	Dmitry Osipenko <dmitry.osipenko@...labora.com>, Maarten Lankhorst
	<maarten.lankhorst@...ux.intel.com>, Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>, Simona Vetter <simona@...ll.ch>,
	<Ray.Huang@....com>
CC: Gurchetan Singh <gurchetansingh@...omium.org>, Chia-I Wu
	<olvaffe@...il.com>, <dri-devel@...ts.freedesktop.org>,
	<virtualization@...ts.linux.dev>, <linux-kernel@...r.kernel.org>, "Honglei
 Huang" <Honglei1.Huang@....com>
Subject: [PATCH 1/6] virtio-gpu api: add HSAKMT context

From: Honglei Huang <Honglei1.Huang@....com>

Add a new context named HSAKMT for compute use case.

- The capset VIRTIO_GPU_CAPSET_HSAKMT used for context init,
in this series patches only HSAKMT context can use the userptr
feature. HSAKMT is a GPU compute library in HSA stack, like
the role libdrm in mesa stack.

Signed-off-by: Honglei Huang <Honglei1.Huang@....com>
---
 include/uapi/linux/virtio_gpu.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/include/uapi/linux/virtio_gpu.h b/include/uapi/linux/virtio_gpu.h
index be109777d10d..30f5e1a9f03d 100644
--- a/include/uapi/linux/virtio_gpu.h
+++ b/include/uapi/linux/virtio_gpu.h
@@ -313,6 +313,7 @@ struct virtio_gpu_cmd_submit {
 #define VIRTIO_GPU_CAPSET_VENUS 4
 #define VIRTIO_GPU_CAPSET_CROSS_DOMAIN 5
 #define VIRTIO_GPU_CAPSET_DRM 6
+#define VIRTIO_GPU_CAPSET_HSAKMT 8
 
 /* VIRTIO_GPU_CMD_GET_CAPSET_INFO */
 struct virtio_gpu_get_capset_info {
-- 
2.34.1