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drm/nouveau: fix handling of GART OOM on pre-NV50 chipsets 

The correct thing to do on OOM is to return 0 and set mm_node to NULL,
otherwise TTM will assume some other kind of error, and not attempt to
evict other buffers to make space.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
hifive-unleashed-5.1
Ben Skeggs 2017-11-01 03:56:19 +10:00
parent 9551efcf76
commit bbb10e6398
1 changed files with 4 additions and 0 deletions
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4
drivers/gpu/drm/nouveau/nouveau_ttm.c
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@ -243,6 +243,10 @@ nv04_gart_manager_new(struct ttm_mem_type_manager *man,
ret = nvkm_vm_get(man->priv, reg->num_pages << 12, node->page_shift,
NV_MEM_ACCESS_RW, &node->vma[0]);
if (ret) {
if (ret == -ENOSPC) {
reg->mm_node = NULL;
ret = 0;
}
kfree(node);
return ret;
}