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kms: Always handle KMS update result via callback

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Instead of using the "discarded" page flip callback when the
"discarding" happened during actual immediate processing, communicate
the same via the KMS update feedback.

The "discarded" page flip callback is instead used only for when a
posted page flip is discarded. In the atomic backend, this only happens
on shutdown, while in the simple backend, this also happens when a
asynchronous retry sequence eventually is abandoned.

This allows further improvements making KMS handling fully async.

Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/2854>
This commit is contained in:
Jonas Ådahl
2022-06-10 20:01:49 +02:00
committed by Marge Bot
parent a2e442ab9d
commit 73fb64cbb6
7 changed files with 88 additions and 151 deletions
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17
src/backends/native/meta-kms-impl-device-simple.c
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@ -1131,15 +1131,14 @@ maybe_dispatch_page_flips (MetaKmsImplDevice *impl_device,
MetaKmsUpdateFlag flags,
GError **error)
{
g_autoptr (GList) page_flip_datas = NULL;
GList *l;
g_autolist (MetaKmsPageFlipData) page_flip_datas = NULL;
page_flip_datas = generate_page_flip_datas (impl_device, update);
while (page_flip_datas)
{
g_autoptr (GList) l = NULL;
MetaKmsPageFlipData *page_flip_data;
g_autoptr (MetaKmsPageFlipData) page_flip_data = NULL;
l = page_flip_datas;
page_flip_datas = g_list_remove_link (page_flip_datas, l);
@ -1166,21 +1165,17 @@ maybe_dispatch_page_flips (MetaKmsImplDevice *impl_device,
*failed_planes = g_list_prepend (*failed_planes, plane_feedback);
}
meta_kms_page_flip_data_discard_in_impl (page_flip_data, *error);
goto err;
}
else
{
meta_kms_page_flip_data_ref (page_flip_data);
}
}
return TRUE;
err:
for (l = page_flip_datas; l; l = l->next)
{
MetaKmsPageFlipData *page_flip_data = l->data;
meta_kms_page_flip_data_discard_in_impl (page_flip_data, *error);
}
g_list_free (page_flip_datas);
return FALSE;