diff options
| author | Ryosuke Yasuoka <ryasuoka@redhat.com> | 2025-02-06 19:42:59 +0900 |
|---|---|---|
| committer | Dmitry Osipenko <dmitry.osipenko@collabora.com> | 2025-02-09 20:36:51 +0300 |
| commit | 6f3d9d0dd335290fa364048de5b3a440f1cf259f (patch) | |
| tree | 46e7b91c9bd6f72fa5dadf84b8e89637dd55a1cb /drivers/gpu/drm/virtio/virtgpu_gem.c | |
| parent | 05345cea4ff5a857612df3f10144dec685c07e6d (diff) | |
drm/virtio: Add drm_panic support
Virtio gpu supports the drm_panic module, which displays a message to
the screen when a kernel panic occurs. It is supported where it has
vmapped shmem BO.
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
Signed-off-by: Ryosuke Yasuoka <ryasuoka@redhat.com>
Tested-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Reviewed-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250206104300.416014-1-ryasuoka@redhat.com
Diffstat (limited to 'drivers/gpu/drm/virtio/virtgpu_gem.c')
| -rw-r--r-- | drivers/gpu/drm/virtio/virtgpu_gem.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/virtio/virtgpu_gem.c b/drivers/gpu/drm/virtio/virtgpu_gem.c index 5aab588fc400..dde8fc1a3689 100644 --- a/drivers/gpu/drm/virtio/virtgpu_gem.c +++ b/drivers/gpu/drm/virtio/virtgpu_gem.c @@ -148,6 +148,20 @@ void virtio_gpu_gem_object_close(struct drm_gem_object *obj, virtio_gpu_notify(vgdev); } +/* For drm panic */ +struct virtio_gpu_object_array *virtio_gpu_panic_array_alloc(void) +{ + struct virtio_gpu_object_array *objs; + + objs = kmalloc(sizeof(struct virtio_gpu_object_array), GFP_ATOMIC); + if (!objs) + return NULL; + + objs->nents = 0; + objs->total = 1; + return objs; +} + struct virtio_gpu_object_array *virtio_gpu_array_alloc(u32 nents) { struct virtio_gpu_object_array *objs; |