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drm/vmwgfx: Reemit context bindings when necessary v2

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When a context is first referenced in the command stream, make sure that all
scrubbed (as a result of eviction) bindings are re-emitted. Also make sure that
all bound resources are put on the resource validate list.

This is needed for legacy emulation, since legacy user-space drivers will
typically not re-emit shader bindings. It also removes the requirement for
user-space drivers to re-emit render-target- and texture bindings.

Makes suspend and hibernate now also work with legacy user-space drivers on
guest-backed devices.

v2: Don't rebind on legacy devices.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
This commit is contained in:
Thomas Hellstrom
2014-02-05 08:13:56 +01:00
parent a6fc955ff9
commit 30f82d816d
6 changed files with 222 additions and 28 deletions
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11
drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
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@@ -88,6 +88,11 @@ struct vmw_resource *vmw_resource_reference(struct vmw_resource *res)
return res;
}
struct vmw_resource *
vmw_resource_reference_unless_doomed(struct vmw_resource *res)
{
return kref_get_unless_zero(&res->kref) ? res : NULL;
}
/**
* vmw_resource_release_id - release a resource id to the id manager.
@@ -136,8 +141,12 @@ static void vmw_resource_release(struct kref *kref)
vmw_dmabuf_unreference(&res->backup);
}
if (likely(res->hw_destroy != NULL))
if (likely(res->hw_destroy != NULL)) {
res->hw_destroy(res);
mutex_lock(&dev_priv->binding_mutex);
vmw_context_binding_res_list_kill(&res->binding_head);
mutex_unlock(&dev_priv->binding_mutex);
}
id = res->id;
if (res->res_free != NULL)