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dma-buf: allow reserving more than one shared fence slot

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Let's support simultaneous submissions to multiple engines.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Link: https://patchwork.kernel.org/patch/10626149/
This commit is contained in:
Christian König
2018-09-19 16:12:25 +02:00
parent 27836b641c
commit ca05359f1e
16 changed files with 28 additions and 23 deletions
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4
drivers/gpu/drm/ttm/ttm_execbuf_util.c
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@@ -129,7 +129,7 @@ int ttm_eu_reserve_buffers(struct ww_acquire_ctx *ticket,
if (!entry->shared)
continue;
ret = reservation_object_reserve_shared(bo->resv);
ret = reservation_object_reserve_shared(bo->resv, 1);
if (!ret)
continue;
}
@@ -151,7 +151,7 @@ int ttm_eu_reserve_buffers(struct ww_acquire_ctx *ticket,
}
if (!ret && entry->shared)
ret = reservation_object_reserve_shared(bo->resv);
ret = reservation_object_reserve_shared(bo->resv, 1);
if (unlikely(ret != 0)) {
if (ret == -EINTR)