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dma-buf/drivers: make reserving a shared slot mandatory v4

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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
This commit is contained in:
Christian König
2021-11-16 15:20:45 +01:00
parent 20b734c112
commit c8d4c18bfb
30 changed files with 184 additions and 122 deletions
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9
drivers/gpu/drm/virtio/virtgpu_gem.c
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@@ -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;
}