From: Gerd Hoffmann <kraxel@redhat.com>
To: dri-devel@lists.freedesktop.org
Cc: christian.koenig@amd.com, Gerd Hoffmann <kraxel@redhat.com>,
David Airlie <airlied@linux.ie>, Daniel Vetter <daniel@ffwll.ch>,
virtualization@lists.linux-foundation.org (open list:VIRTIO GPU
DRIVER), linux-kernel@vger.kernel.org (open list)
Subject: [PATCH v3 2/2] drm/virtio: set max_segment
Date: Mon, 7 Sep 2020 08:33:43 +0200 [thread overview]
Message-ID: <20200907063343.18097-3-kraxel@redhat.com> (raw)
In-Reply-To: <20200907063343.18097-1-kraxel@redhat.com>
When initializing call virtio_max_dma_size() to figure the scatter list
limit. Needed to make virtio-gpu work properly with SEV.
v2: place max_segment in drm driver not gem object.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
---
drivers/gpu/drm/virtio/virtgpu_kms.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/gpu/drm/virtio/virtgpu_kms.c b/drivers/gpu/drm/virtio/virtgpu_kms.c
index 75d0dc2f6d28..151471acdfcf 100644
--- a/drivers/gpu/drm/virtio/virtgpu_kms.c
+++ b/drivers/gpu/drm/virtio/virtgpu_kms.c
@@ -167,6 +167,7 @@ int virtio_gpu_init(struct drm_device *dev)
DRM_ERROR("failed to alloc vbufs\n");
goto err_vbufs;
}
+ dev->max_segment = virtio_max_dma_size(vgdev->vdev);
/* get display info */
virtio_cread_le(vgdev->vdev, struct virtio_gpu_config,
--
2.27.0
prev parent reply other threads:[~2020-09-07 6:33 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20200907063343.18097-1-kraxel@redhat.com>
2020-09-07 6:33 ` [PATCH v3 1/2] drm: allow limiting the scatter list size Gerd Hoffmann
2020-09-07 6:33 ` Gerd Hoffmann [this message]
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