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gpu/intel: free up context/memory ring

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_unmap_dataspace_ggtt requires the cap of Ggtt::Mapping (ring_map, ctx_map)
in order to find the right metadata and to free up the ggtt entries. Also the
pte range is removed already if the metadata was found.

Issue #4148 #4233
This commit is contained in:
Alexander Boettcher 2021-05-18 18:08:12 +02:00 committed by Christian Helmuth
parent b3147050cc
commit 243a9ec3ca
1 changed files with 2 additions and 6 deletions
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8
repos/os/src/drivers/gpu/intel/main.cc
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@ -615,18 +615,14 @@ struct Igd::Device
/* free ring memory */
{
_env.rm().detach(engine->ring_vaddr);
_unmap_dataspace_ggtt(md_alloc, engine->ring_ds);
_unmap_dataspace_ggtt(md_alloc, engine->ring_map.cap);
_free_dataspace(md_alloc, engine->ring_ds);
size_t const offset = (engine->ring_gmaddr / PAGE_SIZE) - 1;
_ggtt->remove_pte_range(offset, Engine<CONTEXT>::RING_PAGES);
}
/* free context memory */
{
_env.rm().detach(engine->ctx_vaddr - PAGE_SIZE);
_unmap_dataspace_ggtt(md_alloc, engine->ctx_ds);
_unmap_dataspace_ggtt(md_alloc, engine->ctx_map.cap);
_free_dataspace(md_alloc, engine->ctx_ds);
size_t const offset = (engine->ctx_gmaddr / PAGE_SIZE) - 1;
_ggtt->remove_pte_range(offset, Engine<CONTEXT>::CONTEXT_PAGES);
}
/* free engine */
Genode::destroy(&md_alloc, engine);