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authorChristian König <christian.koenig@amd.com>2021-11-16 17:20:45 +0300
committerChristian König <christian.koenig@amd.com>2022-04-06 18:38:25 +0300
commitc8d4c18bfbc4ab467188dbe45cc8155759f49d9e (patch)
treec0ecbde97d8d89bed2d7f87a93788bc86d5e56ea /drivers/gpu/drm/virtio
parent20b734c11243ecf97030345b51ff37fcb7dd060f (diff)
downloadlinux-c8d4c18bfbc4ab467188dbe45cc8155759f49d9e.tar.xz
dma-buf/drivers: make reserving a shared slot mandatory v4
Audit all the users of dma_resv_add_excl_fence() and make sure they reserve a shared slot also when only trying to add an exclusive fence. This is the next step towards handling the exclusive fence like a shared one. v2: fix missed case in amdgpu v3: and two more radeon, rename function v4: add one more case to TTM, fix i915 after rebase Signed-off-by: Christian König <christian.koenig@amd.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20220406075132.3263-2-christian.koenig@amd.com
Diffstat (limited to 'drivers/gpu/drm/virtio')
-rw-r--r--drivers/gpu/drm/virtio/virtgpu_gem.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/virtio/virtgpu_gem.c b/drivers/gpu/drm/virtio/virtgpu_gem.c
index 48d3c9955f0d..1820ca6cf673 100644
--- a/drivers/gpu/drm/virtio/virtgpu_gem.c
+++ b/drivers/gpu/drm/virtio/virtgpu_gem.c
@@ -214,6 +214,7 @@ void virtio_gpu_array_add_obj(struct virtio_gpu_object_array *objs,
int virtio_gpu_array_lock_resv(struct virtio_gpu_object_array *objs)
{
+ unsigned int i;
int ret;
if (objs->nents == 1) {
@@ -222,6 +223,14 @@ int virtio_gpu_array_lock_resv(struct virtio_gpu_object_array *objs)
ret = drm_gem_lock_reservations(objs->objs, objs->nents,
&objs->ticket);
}
+ if (ret)
+ return ret;
+
+ for (i = 0; i < objs->nents; ++i) {
+ ret = dma_resv_reserve_fences(objs->objs[i]->resv, 1);
+ if (ret)
+ return ret;
+ }
return ret;
}