fb38c451b5
This adds a MetaKmsImplDevice backend using atomic drmMode* API in constrast to non-atomic legacy drmMode* API used in MetaKmsImplDeviceSimple. This has various behavioral differences worth noting, compared to the simple backend: * We can only commit once per CRTC per page flip. This means that we can only update the cursor plane once. If a primary plane composition missed a dead line, we cannot commit only a cursor update that would be presented earlier. * Partial success is not possible with the atomic backend. Cursor planes may fail with the simple backend. This is not the case with the atomic backend. This will instead later be handled using API specific to the atomic backend, that will effectively translate into TEST_ONLY commits. For testing and debugging purposes, the environment variable MUTTER_DEBUG_ENABLE_ATOMIC_KMS can be set to either 1 or 0 to force-enable or force-disable atomic mode setting. Setting it to some other value will cause mutter to abort(). Closes: https://gitlab.gnome.org/GNOME/mutter/-/issues/548 Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1488>
143 lines
5.8 KiB
C
143 lines
5.8 KiB
C
/*
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* Copyright (C) 2019 Red Hat
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
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* 02111-1307, USA.
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*/
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#ifndef META_KMS_IMPL_DEVICE_H
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#define META_KMS_IMPL_DEVICE_H
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#include <glib-object.h>
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#include <stdint.h>
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#include <xf86drm.h>
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#include <xf86drmMode.h>
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#include "backends/native/meta-kms-device.h"
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#include "backends/native/meta-kms-page-flip-private.h"
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#include "backends/native/meta-kms-types.h"
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#include "backends/native/meta-kms-update.h"
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typedef struct _MetaKmsDeviceCaps
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{
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gboolean has_cursor_size;
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uint64_t cursor_width;
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uint64_t cursor_height;
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} MetaKmsDeviceCaps;
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typedef struct _MetaKmsProp MetaKmsProp;
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struct _MetaKmsProp
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{
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const char *name;
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uint32_t type;
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void (* parse) (MetaKmsImplDevice *impl_device,
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MetaKmsProp *prop,
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drmModePropertyPtr drm_prop,
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uint64_t value,
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gpointer user_data);
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uint32_t prop_id;
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};
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#define META_TYPE_KMS_IMPL_DEVICE (meta_kms_impl_device_get_type ())
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G_DECLARE_DERIVABLE_TYPE (MetaKmsImplDevice, meta_kms_impl_device,
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META, KMS_IMPL_DEVICE,
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GObject)
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struct _MetaKmsImplDeviceClass
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{
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GObjectClass parent_class;
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void (* setup_drm_event_context) (MetaKmsImplDevice *impl,
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drmEventContext *drm_event_context);
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MetaKmsFeedback * (* process_update) (MetaKmsImplDevice *impl,
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MetaKmsUpdate *update);
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void (* handle_page_flip_callback) (MetaKmsImplDevice *impl,
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MetaKmsPageFlipData *page_flip_data);
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void (* discard_pending_page_flips) (MetaKmsImplDevice *impl);
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};
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MetaKmsDevice * meta_kms_impl_device_get_device (MetaKmsImplDevice *impl_device);
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GList * meta_kms_impl_device_copy_connectors (MetaKmsImplDevice *impl_device);
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GList * meta_kms_impl_device_copy_crtcs (MetaKmsImplDevice *impl_device);
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GList * meta_kms_impl_device_copy_planes (MetaKmsImplDevice *impl_device);
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GList * meta_kms_impl_device_peek_connectors (MetaKmsImplDevice *impl_device);
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GList * meta_kms_impl_device_peek_crtcs (MetaKmsImplDevice *impl_device);
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GList * meta_kms_impl_device_peek_planes (MetaKmsImplDevice *impl_device);
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const MetaKmsDeviceCaps * meta_kms_impl_device_get_caps (MetaKmsImplDevice *impl_device);
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GList * meta_kms_impl_device_copy_fallback_modes (MetaKmsImplDevice *impl_device);
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const char * meta_kms_impl_device_get_driver_name (MetaKmsImplDevice *impl_device);
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const char * meta_kms_impl_device_get_driver_description (MetaKmsImplDevice *impl_device);
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const char * meta_kms_impl_device_get_path (MetaKmsImplDevice *impl_device);
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gboolean meta_kms_impl_device_dispatch (MetaKmsImplDevice *impl_device,
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GError **error);
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drmModePropertyPtr meta_kms_impl_device_find_property (MetaKmsImplDevice *impl_device,
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drmModeObjectProperties *props,
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const char *prop_name,
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int *idx);
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int meta_kms_impl_device_get_fd (MetaKmsImplDevice *impl_device);
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int meta_kms_impl_device_leak_fd (MetaKmsImplDevice *impl_device);
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void meta_kms_impl_device_update_states (MetaKmsImplDevice *impl_device);
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void meta_kms_impl_device_predict_states (MetaKmsImplDevice *impl_device,
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MetaKmsUpdate *update);
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MetaKmsPlane * meta_kms_impl_device_add_fake_plane (MetaKmsImplDevice *impl_device,
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MetaKmsPlaneType plane_type,
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MetaKmsCrtc *crtc);
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void meta_kms_impl_device_init_prop_table (MetaKmsImplDevice *impl_device,
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uint32_t *drm_props,
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uint64_t *drm_props_values,
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int n_drm_props,
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MetaKmsProp *props,
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int n_props,
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gpointer user_data);
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void meta_kms_impl_device_reload_prop_values (MetaKmsImplDevice *impl_device,
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uint32_t *drm_props,
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uint64_t *drm_prop_values,
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int n_drm_props,
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gpointer user_data,
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...);
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MetaKmsFeedback * meta_kms_impl_device_process_update (MetaKmsImplDevice *impl_device,
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MetaKmsUpdate *update);
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void meta_kms_impl_device_handle_page_flip_callback (MetaKmsImplDevice *impl_device,
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MetaKmsPageFlipData *page_flip_data);
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void meta_kms_impl_device_discard_pending_page_flips (MetaKmsImplDevice *impl_device);
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int meta_kms_impl_device_close (MetaKmsImplDevice *impl_device);
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#endif /* META_KMS_IMPL_DEVICE_H */
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