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f2d9a11013
As with CRTC state, variable connector state is now fetched via the MetaKmsConnector. The existance of a connector state is equivalent of the connector being connected. MetaOutputKms is changed to fetch variable connector state via MetaKmsConnector intsead of KMS directly. The drmModeConnector is still used for constructing the MetaOutputKms to find properties used for applying configuration. https://gitlab.gnome.org/GNOME/mutter/issues/548 https://gitlab.gnome.org/GNOME/mutter/merge_requests/525
942 lines
24 KiB
C
942 lines
24 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */
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/*
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* Copyright (C) 2017 Red Hat
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* Copyright (c) 2018 DisplayLink (UK) Ltd.
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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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#include "config.h"
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#include "backends/native/meta-gpu-kms.h"
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#include <drm.h>
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#include <errno.h>
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#include <poll.h>
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#include <string.h>
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#include <time.h>
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#include <xf86drm.h>
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#include <xf86drmMode.h>
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#include "backends/meta-crtc.h"
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#include "backends/meta-monitor-manager-private.h"
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#include "backends/meta-output.h"
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#include "backends/native/meta-backend-native.h"
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#include "backends/native/meta-crtc-kms.h"
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#include "backends/native/meta-kms-connector.h"
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#include "backends/native/meta-kms-device.h"
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#include "backends/native/meta-kms.h"
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#include "backends/native/meta-launcher.h"
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#include "backends/native/meta-output-kms.h"
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#include "meta-default-modes.h"
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typedef struct _MetaKmsSource
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{
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GSource source;
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gpointer fd_tag;
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MetaGpuKms *gpu_kms;
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} MetaKmsSource;
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typedef struct _MetaGpuKmsFlipClosureContainer
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{
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GClosure *flip_closure;
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MetaGpuKms *gpu_kms;
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MetaCrtc *crtc;
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} MetaGpuKmsFlipClosureContainer;
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struct _MetaGpuKms
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{
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MetaGpu parent;
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MetaKmsDevice *kms_device;
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uint32_t id;
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int fd;
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GSource *source;
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clockid_t clock_id;
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drmModeConnector **connectors;
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unsigned int n_connectors;
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gboolean resources_init_failed_before;
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};
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G_DEFINE_TYPE (MetaGpuKms, meta_gpu_kms, META_TYPE_GPU)
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static gboolean
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kms_event_check (GSource *source)
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{
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MetaKmsSource *kms_source = (MetaKmsSource *) source;
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return g_source_query_unix_fd (source, kms_source->fd_tag) & G_IO_IN;
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}
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static gboolean
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kms_event_dispatch (GSource *source,
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GSourceFunc callback,
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gpointer user_data)
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{
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MetaKmsSource *kms_source = (MetaKmsSource *) source;
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meta_gpu_kms_wait_for_flip (kms_source->gpu_kms, NULL);
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return G_SOURCE_CONTINUE;
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}
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static GSourceFuncs kms_event_funcs = {
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NULL,
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kms_event_check,
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kms_event_dispatch
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};
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static void
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get_crtc_drm_connectors (MetaGpu *gpu,
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MetaCrtc *crtc,
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uint32_t **connectors,
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unsigned int *n_connectors)
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{
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GArray *connectors_array = g_array_new (FALSE, FALSE, sizeof (uint32_t));
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GList *l;
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for (l = meta_gpu_get_outputs (gpu); l; l = l->next)
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{
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MetaOutput *output = l->data;
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MetaCrtc *assigned_crtc;
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assigned_crtc = meta_output_get_assigned_crtc (output);
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if (assigned_crtc == crtc)
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{
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uint32_t connector_id;
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connector_id = meta_output_kms_get_connector_id (output);
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g_array_append_val (connectors_array, connector_id);
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}
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}
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*n_connectors = connectors_array->len;
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*connectors = (uint32_t *) g_array_free (connectors_array, FALSE);
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}
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gboolean
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meta_gpu_kms_apply_crtc_mode (MetaGpuKms *gpu_kms,
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MetaCrtc *crtc,
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int x,
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int y,
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uint32_t fb_id)
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{
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MetaGpu *gpu = meta_crtc_get_gpu (crtc);
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int kms_fd = meta_gpu_kms_get_fd (gpu_kms);
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uint32_t *connectors;
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unsigned int n_connectors;
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drmModeModeInfo *mode;
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get_crtc_drm_connectors (gpu, crtc, &connectors, &n_connectors);
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if (connectors)
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mode = crtc->current_mode->driver_private;
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else
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mode = NULL;
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if (drmModeSetCrtc (kms_fd,
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crtc->crtc_id,
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fb_id,
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x, y,
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connectors, n_connectors,
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mode) != 0)
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{
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if (mode)
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g_warning ("Failed to set CRTC mode %s: %m", crtc->current_mode->name);
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else
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g_warning ("Failed to disable CRTC");
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g_free (connectors);
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return FALSE;
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}
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g_free (connectors);
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return TRUE;
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}
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static void
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invoke_flip_closure (GClosure *flip_closure,
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MetaGpuKms *gpu_kms,
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MetaCrtc *crtc,
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int64_t page_flip_time_ns)
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{
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GValue params[] = {
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G_VALUE_INIT,
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G_VALUE_INIT,
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G_VALUE_INIT,
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G_VALUE_INIT,
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};
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g_value_init (¶ms[0], G_TYPE_POINTER);
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g_value_set_pointer (¶ms[0], flip_closure);
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g_value_init (¶ms[1], G_TYPE_OBJECT);
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g_value_set_object (¶ms[1], gpu_kms);
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g_value_init (¶ms[2], G_TYPE_OBJECT);
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g_value_set_object (¶ms[2], crtc);
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g_value_init (¶ms[3], G_TYPE_INT64);
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g_value_set_int64 (¶ms[3], page_flip_time_ns);
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g_closure_invoke (flip_closure, NULL, 4, params, NULL);
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}
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gboolean
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meta_gpu_kms_is_crtc_active (MetaGpuKms *gpu_kms,
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MetaCrtc *crtc)
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{
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MetaGpu *gpu = META_GPU (gpu_kms);
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MetaBackend *backend = meta_gpu_get_backend (gpu);
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MetaMonitorManager *monitor_manager =
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meta_backend_get_monitor_manager (backend);
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GList *l;
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gboolean connected_crtc_found;
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g_assert (meta_crtc_get_gpu (crtc) == META_GPU (gpu_kms));
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if (meta_monitor_manager_get_power_save_mode (monitor_manager))
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return FALSE;
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connected_crtc_found = FALSE;
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for (l = meta_gpu_get_outputs (gpu); l; l = l->next)
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{
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MetaOutput *output = l->data;
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MetaCrtc *assigned_crtc;
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assigned_crtc = meta_output_get_assigned_crtc (output);
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if (assigned_crtc == crtc)
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{
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connected_crtc_found = TRUE;
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break;
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}
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}
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if (!connected_crtc_found)
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return FALSE;
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return TRUE;
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}
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MetaGpuKmsFlipClosureContainer *
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meta_gpu_kms_wrap_flip_closure (MetaGpuKms *gpu_kms,
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MetaCrtc *crtc,
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GClosure *flip_closure)
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{
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MetaGpuKmsFlipClosureContainer *closure_container;
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closure_container = g_new0 (MetaGpuKmsFlipClosureContainer, 1);
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*closure_container = (MetaGpuKmsFlipClosureContainer) {
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.flip_closure = g_closure_ref (flip_closure),
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.gpu_kms = gpu_kms,
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.crtc = crtc
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};
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return closure_container;
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}
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void
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meta_gpu_kms_flip_closure_container_free (MetaGpuKmsFlipClosureContainer *closure_container)
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{
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g_closure_unref (closure_container->flip_closure);
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g_free (closure_container);
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}
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gboolean
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meta_gpu_kms_flip_crtc (MetaGpuKms *gpu_kms,
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MetaCrtc *crtc,
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uint32_t fb_id,
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GClosure *flip_closure,
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GError **error)
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{
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MetaGpu *gpu = META_GPU (gpu_kms);
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MetaBackend *backend = meta_gpu_get_backend (gpu);
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MetaMonitorManager *monitor_manager =
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meta_backend_get_monitor_manager (backend);
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MetaGpuKmsFlipClosureContainer *closure_container;
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int kms_fd = meta_gpu_kms_get_fd (gpu_kms);
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uint32_t *connectors;
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unsigned int n_connectors;
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int ret = -1;
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g_assert (meta_crtc_get_gpu (crtc) == gpu);
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g_assert (monitor_manager);
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g_assert (meta_monitor_manager_get_power_save_mode (monitor_manager) ==
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META_POWER_SAVE_ON);
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get_crtc_drm_connectors (gpu, crtc, &connectors, &n_connectors);
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g_assert (n_connectors > 0);
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g_free (connectors);
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g_assert (fb_id != 0);
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closure_container = meta_gpu_kms_wrap_flip_closure (gpu_kms,
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crtc,
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flip_closure);
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ret = drmModePageFlip (kms_fd,
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crtc->crtc_id,
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fb_id,
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DRM_MODE_PAGE_FLIP_EVENT,
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closure_container);
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if (ret != 0)
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{
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meta_gpu_kms_flip_closure_container_free (closure_container);
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g_set_error (error, G_IO_ERROR,
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g_io_error_from_errno (-ret),
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"drmModePageFlip failed: %s", g_strerror (-ret));
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return FALSE;
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}
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return TRUE;
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}
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static int64_t
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timespec_to_nanoseconds (const struct timespec *ts)
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{
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const int64_t one_billion = 1000000000;
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return ((int64_t) ts->tv_sec) * one_billion + ts->tv_nsec;
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}
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static int64_t
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timeval_to_nanoseconds (const struct timeval *tv)
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{
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int64_t usec = ((int64_t) tv->tv_sec) * G_USEC_PER_SEC + tv->tv_usec;
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int64_t nsec = usec * 1000;
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return nsec;
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}
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static void
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page_flip_handler (int fd,
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unsigned int frame,
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unsigned int sec,
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unsigned int usec,
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void *user_data)
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{
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MetaGpuKmsFlipClosureContainer *closure_container = user_data;
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GClosure *flip_closure = closure_container->flip_closure;
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MetaGpuKms *gpu_kms = closure_container->gpu_kms;
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struct timeval page_flip_time = {sec, usec};
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invoke_flip_closure (flip_closure,
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gpu_kms,
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closure_container->crtc,
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timeval_to_nanoseconds (&page_flip_time));
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meta_gpu_kms_flip_closure_container_free (closure_container);
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}
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gboolean
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meta_gpu_kms_wait_for_flip (MetaGpuKms *gpu_kms,
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GError **error)
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{
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drmEventContext evctx;
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memset (&evctx, 0, sizeof evctx);
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evctx.version = 2;
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evctx.page_flip_handler = page_flip_handler;
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while (TRUE)
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{
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if (drmHandleEvent (gpu_kms->fd, &evctx) != 0)
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{
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struct pollfd pfd;
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int ret;
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if (errno != EAGAIN)
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{
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g_set_error_literal (error, G_IO_ERROR, G_IO_ERROR_FAILED,
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strerror (errno));
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return FALSE;
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}
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pfd.fd = gpu_kms->fd;
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pfd.events = POLL_IN | POLL_ERR;
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do
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{
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ret = poll (&pfd, 1, -1);
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}
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while (ret == -1 && errno == EINTR);
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}
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else
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{
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break;
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}
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}
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return TRUE;
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}
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int
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meta_gpu_kms_get_fd (MetaGpuKms *gpu_kms)
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{
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return gpu_kms->fd;
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}
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uint32_t
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meta_gpu_kms_get_id (MetaGpuKms *gpu_kms)
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{
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return gpu_kms->id;
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}
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const char *
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meta_gpu_kms_get_file_path (MetaGpuKms *gpu_kms)
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{
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return meta_kms_device_get_path (gpu_kms->kms_device);
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}
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int64_t
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meta_gpu_kms_get_current_time_ns (MetaGpuKms *gpu_kms)
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{
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struct timespec ts;
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if (clock_gettime (gpu_kms->clock_id, &ts))
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return 0;
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return timespec_to_nanoseconds (&ts);
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}
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void
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meta_gpu_kms_set_power_save_mode (MetaGpuKms *gpu_kms,
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uint64_t state)
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{
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GList *l;
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for (l = meta_gpu_get_outputs (META_GPU (gpu_kms)); l; l = l->next)
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{
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MetaOutput *output = l->data;
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meta_output_kms_set_power_save_mode (output, state);
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}
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}
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gboolean
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meta_gpu_kms_is_boot_vga (MetaGpuKms *gpu_kms)
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{
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MetaKmsDeviceFlag flags;
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flags = meta_kms_device_get_flags (gpu_kms->kms_device);
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return !!(flags & META_KMS_DEVICE_FLAG_BOOT_VGA);
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}
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gboolean
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meta_gpu_kms_is_platform_device (MetaGpuKms *gpu_kms)
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{
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MetaKmsDeviceFlag flags;
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flags = meta_kms_device_get_flags (gpu_kms->kms_device);
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return !!(flags & META_KMS_DEVICE_FLAG_PLATFORM_DEVICE);
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}
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static void
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free_resources (MetaGpuKms *gpu_kms)
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{
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unsigned i;
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for (i = 0; i < gpu_kms->n_connectors; i++)
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drmModeFreeConnector (gpu_kms->connectors[i]);
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g_free (gpu_kms->connectors);
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}
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static int
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compare_outputs (gconstpointer one,
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gconstpointer two)
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{
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const MetaOutput *o_one = one, *o_two = two;
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return strcmp (o_one->name, o_two->name);
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}
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static void
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meta_crtc_mode_destroy_notify (MetaCrtcMode *mode)
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{
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g_slice_free (drmModeModeInfo, mode->driver_private);
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}
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gboolean
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meta_drm_mode_equal (const drmModeModeInfo *one,
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const drmModeModeInfo *two)
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{
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return (one->clock == two->clock &&
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one->hdisplay == two->hdisplay &&
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one->hsync_start == two->hsync_start &&
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one->hsync_end == two->hsync_end &&
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one->htotal == two->htotal &&
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one->hskew == two->hskew &&
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one->vdisplay == two->vdisplay &&
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one->vsync_start == two->vsync_start &&
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one->vsync_end == two->vsync_end &&
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one->vtotal == two->vtotal &&
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one->vscan == two->vscan &&
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one->vrefresh == two->vrefresh &&
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one->flags == two->flags &&
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one->type == two->type &&
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strncmp (one->name, two->name, DRM_DISPLAY_MODE_LEN) == 0);
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}
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static guint
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drm_mode_hash (gconstpointer ptr)
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{
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const drmModeModeInfo *mode = ptr;
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guint hash = 0;
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/*
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* We don't include the name in the hash because it's generally
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* derived from the other fields (hdisplay, vdisplay and flags)
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*/
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hash ^= mode->clock;
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hash ^= mode->hdisplay ^ mode->hsync_start ^ mode->hsync_end;
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hash ^= mode->vdisplay ^ mode->vsync_start ^ mode->vsync_end;
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hash ^= mode->vrefresh;
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hash ^= mode->flags ^ mode->type;
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return hash;
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}
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MetaCrtcMode *
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meta_gpu_kms_get_mode_from_drm_mode (MetaGpuKms *gpu_kms,
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const drmModeModeInfo *drm_mode)
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{
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MetaGpu *gpu = META_GPU (gpu_kms);
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GList *l;
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for (l = meta_gpu_get_modes (gpu); l; l = l->next)
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{
|
|
MetaCrtcMode *mode = l->data;
|
|
|
|
if (meta_drm_mode_equal (drm_mode, mode->driver_private))
|
|
return mode;
|
|
}
|
|
|
|
g_assert_not_reached ();
|
|
return NULL;
|
|
}
|
|
|
|
float
|
|
meta_calculate_drm_mode_refresh_rate (const drmModeModeInfo *mode)
|
|
{
|
|
float refresh = 0.0;
|
|
|
|
if (mode->htotal > 0 && mode->vtotal > 0)
|
|
{
|
|
/* Calculate refresh rate in milliHz first for extra precision. */
|
|
refresh = (mode->clock * 1000000LL) / mode->htotal;
|
|
refresh += (mode->vtotal / 2);
|
|
refresh /= mode->vtotal;
|
|
if (mode->vscan > 1)
|
|
refresh /= mode->vscan;
|
|
refresh /= 1000.0;
|
|
}
|
|
return refresh;
|
|
}
|
|
|
|
static MetaCrtcMode *
|
|
create_mode (const drmModeModeInfo *drm_mode,
|
|
long mode_id)
|
|
{
|
|
MetaCrtcMode *mode;
|
|
|
|
mode = g_object_new (META_TYPE_CRTC_MODE, NULL);
|
|
mode->mode_id = mode_id;
|
|
mode->name = g_strndup (drm_mode->name, DRM_DISPLAY_MODE_LEN);
|
|
mode->width = drm_mode->hdisplay;
|
|
mode->height = drm_mode->vdisplay;
|
|
mode->flags = drm_mode->flags;
|
|
mode->refresh_rate = meta_calculate_drm_mode_refresh_rate (drm_mode);
|
|
mode->driver_private = g_slice_dup (drmModeModeInfo, drm_mode);
|
|
mode->driver_notify = (GDestroyNotify) meta_crtc_mode_destroy_notify;
|
|
|
|
return mode;
|
|
}
|
|
|
|
static MetaOutput *
|
|
find_output_by_connector_id (GList *outputs,
|
|
uint32_t connector_id)
|
|
{
|
|
GList *l;
|
|
|
|
for (l = outputs; l; l = l->next)
|
|
{
|
|
MetaOutput *output = l->data;
|
|
|
|
if (meta_output_kms_get_connector_id (output) == connector_id)
|
|
return output;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
setup_output_clones (MetaGpu *gpu)
|
|
{
|
|
GList *l;
|
|
|
|
for (l = meta_gpu_get_outputs (gpu); l; l = l->next)
|
|
{
|
|
MetaOutput *output = l->data;
|
|
GList *k;
|
|
|
|
for (k = meta_gpu_get_outputs (gpu); k; k = k->next)
|
|
{
|
|
MetaOutput *other_output = k->data;
|
|
|
|
if (other_output == output)
|
|
continue;
|
|
|
|
if (meta_output_kms_can_clone (output, other_output))
|
|
{
|
|
output->n_possible_clones++;
|
|
output->possible_clones = g_renew (MetaOutput *,
|
|
output->possible_clones,
|
|
output->n_possible_clones);
|
|
output->possible_clones[output->n_possible_clones - 1] =
|
|
other_output;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
init_connectors (MetaGpuKms *gpu_kms,
|
|
drmModeRes *resources)
|
|
{
|
|
unsigned int i;
|
|
|
|
gpu_kms->n_connectors = resources->count_connectors;
|
|
gpu_kms->connectors = g_new (drmModeConnector *, gpu_kms->n_connectors);
|
|
for (i = 0; i < gpu_kms->n_connectors; i++)
|
|
{
|
|
drmModeConnector *drm_connector;
|
|
|
|
drm_connector = drmModeGetConnector (gpu_kms->fd,
|
|
resources->connectors[i]);
|
|
gpu_kms->connectors[i] = drm_connector;
|
|
}
|
|
}
|
|
|
|
static void
|
|
init_modes (MetaGpuKms *gpu_kms,
|
|
drmModeRes *resources)
|
|
{
|
|
MetaGpu *gpu = META_GPU (gpu_kms);
|
|
GHashTable *modes_table;
|
|
GList *modes;
|
|
GHashTableIter iter;
|
|
drmModeModeInfo *drm_mode;
|
|
unsigned int i;
|
|
long mode_id;
|
|
|
|
/*
|
|
* Gather all modes on all connected connectors.
|
|
*/
|
|
modes_table = g_hash_table_new (drm_mode_hash, (GEqualFunc) meta_drm_mode_equal);
|
|
for (i = 0; i < gpu_kms->n_connectors; i++)
|
|
{
|
|
drmModeConnector *drm_connector;
|
|
|
|
drm_connector = gpu_kms->connectors[i];
|
|
if (drm_connector && drm_connector->connection == DRM_MODE_CONNECTED)
|
|
{
|
|
unsigned int j;
|
|
|
|
for (j = 0; j < (unsigned int) drm_connector->count_modes; j++)
|
|
g_hash_table_add (modes_table, &drm_connector->modes[j]);
|
|
}
|
|
}
|
|
|
|
modes = NULL;
|
|
|
|
g_hash_table_iter_init (&iter, modes_table);
|
|
mode_id = 0;
|
|
while (g_hash_table_iter_next (&iter, NULL, (gpointer *) &drm_mode))
|
|
{
|
|
MetaCrtcMode *mode;
|
|
|
|
mode = create_mode (drm_mode, (long) mode_id);
|
|
modes = g_list_append (modes, mode);
|
|
|
|
mode_id++;
|
|
}
|
|
|
|
g_hash_table_destroy (modes_table);
|
|
|
|
for (i = 0; i < G_N_ELEMENTS (meta_default_landscape_drm_mode_infos); i++)
|
|
{
|
|
MetaCrtcMode *mode;
|
|
|
|
mode = create_mode (&meta_default_landscape_drm_mode_infos[i], mode_id);
|
|
modes = g_list_append (modes, mode);
|
|
|
|
mode_id++;
|
|
}
|
|
|
|
for (i = 0; i < G_N_ELEMENTS (meta_default_portrait_drm_mode_infos); i++)
|
|
{
|
|
MetaCrtcMode *mode;
|
|
|
|
mode = create_mode (&meta_default_portrait_drm_mode_infos[i], mode_id);
|
|
modes = g_list_append (modes, mode);
|
|
|
|
mode_id++;
|
|
}
|
|
|
|
meta_gpu_take_modes (gpu, modes);
|
|
}
|
|
|
|
static void
|
|
init_crtcs (MetaGpuKms *gpu_kms)
|
|
{
|
|
MetaGpu *gpu = META_GPU (gpu_kms);
|
|
MetaKmsDevice *kms_device = gpu_kms->kms_device;
|
|
GList *l;
|
|
GList *crtcs;
|
|
|
|
crtcs = NULL;
|
|
|
|
for (l = meta_kms_device_get_crtcs (kms_device); l; l = l->next)
|
|
{
|
|
MetaKmsCrtc *kms_crtc = l->data;
|
|
MetaCrtc *crtc;
|
|
|
|
crtc = meta_create_kms_crtc (gpu_kms, kms_crtc);
|
|
|
|
crtcs = g_list_append (crtcs, crtc);
|
|
}
|
|
|
|
meta_gpu_take_crtcs (gpu, crtcs);
|
|
}
|
|
|
|
static void
|
|
init_frame_clock (MetaGpuKms *gpu_kms)
|
|
{
|
|
uint64_t uses_monotonic;
|
|
|
|
if (drmGetCap (gpu_kms->fd, DRM_CAP_TIMESTAMP_MONOTONIC, &uses_monotonic) != 0)
|
|
uses_monotonic = 0;
|
|
|
|
gpu_kms->clock_id = uses_monotonic ? CLOCK_MONOTONIC : CLOCK_REALTIME;
|
|
}
|
|
|
|
static void
|
|
init_outputs (MetaGpuKms *gpu_kms)
|
|
{
|
|
MetaGpu *gpu = META_GPU (gpu_kms);
|
|
GList *old_outputs;
|
|
GList *outputs;
|
|
unsigned int i;
|
|
GList *l;
|
|
|
|
old_outputs = meta_gpu_get_outputs (gpu);
|
|
|
|
outputs = NULL;
|
|
|
|
i = 0;
|
|
for (l = meta_kms_device_get_connectors (gpu_kms->kms_device); l; l = l->next)
|
|
{
|
|
MetaKmsConnector *kms_connector = l->data;
|
|
MetaOutput *output;
|
|
MetaOutput *old_output;
|
|
GError *error = NULL;
|
|
drmModeConnector *connector;
|
|
|
|
connector = gpu_kms->connectors[i++];
|
|
|
|
if (!connector || connector->connection != DRM_MODE_CONNECTED)
|
|
continue;
|
|
|
|
old_output =
|
|
find_output_by_connector_id (old_outputs,
|
|
meta_kms_connector_get_id (kms_connector));
|
|
output = meta_create_kms_output (gpu_kms,
|
|
kms_connector,
|
|
connector,
|
|
old_output,
|
|
&error);
|
|
if (!output)
|
|
{
|
|
g_warning ("Failed to create KMS output: %s", error->message);
|
|
g_error_free (error);
|
|
}
|
|
else
|
|
{
|
|
outputs = g_list_prepend (outputs, output);
|
|
}
|
|
}
|
|
|
|
|
|
/* Sort the outputs for easier handling in MetaMonitorConfig */
|
|
outputs = g_list_sort (outputs, compare_outputs);
|
|
meta_gpu_take_outputs (gpu, outputs);
|
|
|
|
setup_output_clones (gpu);
|
|
}
|
|
|
|
static gboolean
|
|
meta_kms_resources_init (MetaKmsResources *resources,
|
|
int fd,
|
|
GError **error)
|
|
|
|
{
|
|
drmModeRes *drm_resources;
|
|
unsigned int i;
|
|
|
|
drm_resources = drmModeGetResources (fd);
|
|
|
|
if (!drm_resources)
|
|
{
|
|
g_set_error (error,
|
|
G_IO_ERROR,
|
|
G_IO_ERROR_FAILED,
|
|
"Calling drmModeGetResources() failed");
|
|
return FALSE;
|
|
}
|
|
|
|
resources->resources = drm_resources;
|
|
|
|
resources->n_encoders = (unsigned int) drm_resources->count_encoders;
|
|
resources->encoders = g_new (drmModeEncoder *, resources->n_encoders);
|
|
for (i = 0; i < resources->n_encoders; i++)
|
|
resources->encoders[i] = drmModeGetEncoder (fd, drm_resources->encoders[i]);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
meta_kms_resources_release (MetaKmsResources *resources)
|
|
{
|
|
unsigned int i;
|
|
|
|
for (i = 0; i < resources->n_encoders; i++)
|
|
drmModeFreeEncoder (resources->encoders[i]);
|
|
g_free (resources->encoders);
|
|
|
|
g_clear_pointer (&resources->resources, drmModeFreeResources);
|
|
}
|
|
|
|
static gboolean
|
|
meta_gpu_kms_read_current (MetaGpu *gpu,
|
|
GError **error)
|
|
{
|
|
MetaGpuKms *gpu_kms = META_GPU_KMS (gpu);
|
|
MetaKmsResources resources;
|
|
g_autoptr (GError) local_error = NULL;
|
|
|
|
if (!meta_kms_resources_init (&resources, gpu_kms->fd, &local_error))
|
|
{
|
|
if (!gpu_kms->resources_init_failed_before)
|
|
{
|
|
g_warning ("meta_kms_resources_init failed: %s, assuming we have no outputs",
|
|
local_error->message);
|
|
gpu_kms->resources_init_failed_before = TRUE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
/* Note: we must not free the public structures (output, crtc, monitor
|
|
mode and monitor info) here, they must be kept alive until the API
|
|
users are done with them after we emit monitors-changed, and thus
|
|
are freed by the platform-independent layer. */
|
|
free_resources (gpu_kms);
|
|
|
|
init_connectors (gpu_kms, resources.resources);
|
|
init_modes (gpu_kms, resources.resources);
|
|
init_crtcs (gpu_kms);
|
|
init_outputs (gpu_kms);
|
|
init_frame_clock (gpu_kms);
|
|
|
|
meta_kms_resources_release (&resources);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
gboolean
|
|
meta_gpu_kms_can_have_outputs (MetaGpuKms *gpu_kms)
|
|
{
|
|
return gpu_kms->n_connectors > 0;
|
|
}
|
|
|
|
MetaGpuKms *
|
|
meta_gpu_kms_new (MetaBackendNative *backend_native,
|
|
MetaKmsDevice *kms_device,
|
|
GError **error)
|
|
{
|
|
GSource *source;
|
|
MetaKmsSource *kms_source;
|
|
MetaGpuKms *gpu_kms;
|
|
int kms_fd;
|
|
|
|
kms_fd = meta_kms_device_leak_fd (kms_device);
|
|
|
|
gpu_kms = g_object_new (META_TYPE_GPU_KMS,
|
|
"backend", backend_native,
|
|
NULL);
|
|
|
|
gpu_kms->kms_device = kms_device;
|
|
gpu_kms->fd = kms_fd;
|
|
|
|
meta_gpu_kms_read_current (META_GPU (gpu_kms), NULL);
|
|
|
|
source = g_source_new (&kms_event_funcs, sizeof (MetaKmsSource));
|
|
kms_source = (MetaKmsSource *) source;
|
|
kms_source->fd_tag = g_source_add_unix_fd (source,
|
|
gpu_kms->fd,
|
|
G_IO_IN | G_IO_ERR);
|
|
kms_source->gpu_kms = gpu_kms;
|
|
|
|
gpu_kms->source = source;
|
|
g_source_attach (gpu_kms->source, NULL);
|
|
|
|
return gpu_kms;
|
|
}
|
|
|
|
static void
|
|
meta_gpu_kms_finalize (GObject *object)
|
|
{
|
|
MetaGpuKms *gpu_kms = META_GPU_KMS (object);
|
|
|
|
g_source_destroy (gpu_kms->source);
|
|
|
|
free_resources (gpu_kms);
|
|
|
|
G_OBJECT_CLASS (meta_gpu_kms_parent_class)->finalize (object);
|
|
}
|
|
|
|
static void
|
|
meta_gpu_kms_init (MetaGpuKms *gpu_kms)
|
|
{
|
|
static uint32_t id = 0;
|
|
|
|
gpu_kms->fd = -1;
|
|
gpu_kms->id = ++id;
|
|
}
|
|
|
|
static void
|
|
meta_gpu_kms_class_init (MetaGpuKmsClass *klass)
|
|
{
|
|
GObjectClass *object_class = G_OBJECT_CLASS (klass);
|
|
MetaGpuClass *gpu_class = META_GPU_CLASS (klass);
|
|
|
|
object_class->finalize = meta_gpu_kms_finalize;
|
|
|
|
gpu_class->read_current = meta_gpu_kms_read_current;
|
|
}
|