diff options
| author | Danilo Krummrich <dakr@redhat.com> | 2023-11-08 03:12:36 +0300 |
|---|---|---|
| committer | Danilo Krummrich <dakr@redhat.com> | 2023-11-13 20:18:12 +0300 |
| commit | 6118411428a393fb0868bad9025d71875418058b (patch) | |
| tree | 1d797eb40ae48944007a0e8eb45573ce8415aecd /drivers/gpu/drm/nouveau/nouveau_bo.c | |
| parent | bbe8458037e74b9887ba2f0f0b8084a13ade3a90 (diff) | |
| download | linux-6118411428a393fb0868bad9025d71875418058b.tar.xz | |
drm/nouveau: make use of the GPUVM's shared dma-resv
DRM GEM objects private to a single GPUVM can use a shared dma-resv.
Make use of the shared dma-resv of GPUVM rather than a driver specific
one.
The shared dma-resv originates from a "root" GEM object serving as
container for the dma-resv to make it compatible with drm_exec.
In order to make sure the object proving the shared dma-resv can't be
freed up before the objects making use of it, let every such GEM object
take a reference on it.
Reviewed-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231108001259.15123-7-dakr@redhat.com
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_bo.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bo.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index 0f3bd187ede6..7afad86da64b 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/drivers/gpu/drm/nouveau/nouveau_bo.c @@ -148,10 +148,17 @@ nouveau_bo_del_ttm(struct ttm_buffer_object *bo) * If nouveau_bo_new() allocated this buffer, the GEM object was never * initialized, so don't attempt to release it. */ - if (bo->base.dev) + if (bo->base.dev) { + /* Gem objects not being shared with other VMs get their + * dma_resv from a root GEM object. + */ + if (nvbo->no_share) + drm_gem_object_put(nvbo->r_obj); + drm_gem_object_release(&bo->base); - else + } else { dma_resv_fini(&bo->base._resv); + } kfree(nvbo); } |