From: Demi Marie Obenour <demiobenour@gmail.com>
To: Honglei Huang <honglei1.huang@amd.com>,
David Airlie <airlied@redhat.com>,
Gerd Hoffmann <kraxel@redhat.com>,
Gurchetan Singh <gurchetansingh@chromium.org>,
Chia-I Wu <olvaffe@gmail.com>,
Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
Maxime Ripard <mripard@kernel.org>,
Thomas Zimmermann <tzimmermann@suse.de>,
Simona Vetter <simona@ffwll.ch>, Rob Clark <robdclark@gmail.com>,
Huang Rui <ray.huang@amd.com>
Cc: dri-devel@lists.freedesktop.org, virtualization@lists.linux.dev,
linux-kernel@vger.kernel.org,
Dmitry Osipenko <dmitry.osipenko@collabora.com>
Subject: Re: [PATCH v1 1/7] virtio-gpu api: add blob userptr resource
Date: Fri, 28 Feb 2025 16:21:58 -0500 [thread overview]
Message-ID: <cd9f85a5-0d99-4007-bba2-d792ac9d84da@gmail.com> (raw)
In-Reply-To: <20250228053650.393646-2-honglei1.huang@amd.com>
On 2/28/25 12:36 AM, Honglei Huang wrote:
> From: Honglei Huang <Honglei1.Huang@amd.com>
>
> Add a new resource for blob resource, called userptr, used for let
> host access guest user space memory, to acquire buffer based userptr
> feature in virtio GPU.
>
> - 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.
Userptr should not be limited to HSMKMT contexts. Userptr can
accelerate shm buffers by avoiding a copy from guest to host, and
it can be implemented using grant tables on Xen.
--
Sincerely,
Demi Marie Obenour (she/her/hers)
next prev parent reply other threads:[~2025-02-28 21:22 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-28 5:36 [PATCH v1 0/7] Add virtio gpu userptr support Honglei Huang
2025-02-28 5:36 ` [PATCH v1 1/7] virtio-gpu api: add blob userptr resource Honglei Huang
2025-02-28 21:21 ` Demi Marie Obenour [this message]
2025-03-06 10:51 ` Huang, Honglei1
2025-03-18 1:37 ` Gurchetan Singh
2025-03-18 11:25 ` Huang, Honglei1
2025-03-24 2:44 ` Huang, Honglei1
2025-03-26 14:46 ` Dmitry Osipenko
2025-03-27 3:00 ` Huang, Honglei1
2025-03-28 1:39 ` Dmitry Osipenko
2025-03-29 19:50 ` Demi Marie Obenour
2025-03-30 11:57 ` Dmitry Osipenko
2025-02-28 5:36 ` [PATCH v1 2/7] drm/virtgpu " Honglei Huang
2025-02-28 5:36 ` [PATCH v1 3/7] drm/virtio: implement userptr: probe for the feature Honglei Huang
2025-02-28 5:36 ` [PATCH v1 4/7] drm/virtio: implement userptr: add userptr obj Honglei Huang
2025-02-28 5:36 ` [PATCH v1 5/7] drm/virtio: advertise base userptr feature to userspace Honglei Huang
2025-02-28 5:36 ` [PATCH v1 6/7] drm/virtio: implement userptr: add interval tree Honglei Huang
2025-02-28 5:36 ` [PATCH v1 7/7] drm/virtio: implement userptr: add mmu notifier Honglei Huang
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