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da3baba980
The intel DRM driver is known for not being able to handle multi head setups when KMS modifiers are enabled, due to the implicitly selected modifiers, while being more suitable for single head setups, cause bandwidth issues when a certain number of monitor times resolution and refresh rate is configured. We don't yet support automatically finding a combination of modifiers that work, and have because of this disabled KMS modifiers unless the driver actually needs it. Lets flip this configuration the other way around, changing the current udev rule to decide wen to *disable* KMS modifier support, as it so that only the Intel driver has this problem, while on the other hand, there several drivers that requires modifiers to function at all. Part-of: <https://gitlab.gnome.org/GNOME/mutter/-/merge_requests/1792>
79 lines
3.0 KiB
C
79 lines
3.0 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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#ifndef META_GPU_KMS_H
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#define META_GPU_KMS_H
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#include <glib-object.h>
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#include <xf86drm.h>
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#include <xf86drmMode.h>
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#include "backends/meta-gpu.h"
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#include "backends/native/meta-backend-native.h"
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#include "backends/native/meta-kms-types.h"
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#define META_TYPE_GPU_KMS (meta_gpu_kms_get_type ())
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G_DECLARE_FINAL_TYPE (MetaGpuKms, meta_gpu_kms, META, GPU_KMS, MetaGpu)
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typedef struct _MetaGpuKmsFlipClosureContainer MetaGpuKmsFlipClosureContainer;
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MetaGpuKms * meta_gpu_kms_new (MetaBackendNative *backend_native,
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MetaKmsDevice *kms_device,
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GError **error);
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gboolean meta_gpu_kms_can_have_outputs (MetaGpuKms *gpu_kms);
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gboolean meta_gpu_kms_is_crtc_active (MetaGpuKms *gpu_kms,
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MetaCrtc *crtc);
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gboolean meta_gpu_kms_is_boot_vga (MetaGpuKms *gpu_kms);
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gboolean meta_gpu_kms_is_platform_device (MetaGpuKms *gpu_kms);
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gboolean meta_gpu_kms_disable_modifiers (MetaGpuKms *gpu_kms);
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MetaKmsDevice * meta_gpu_kms_get_kms_device (MetaGpuKms *gpu_kms);
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int meta_gpu_kms_get_fd (MetaGpuKms *gpu_kms);
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uint32_t meta_gpu_kms_get_id (MetaGpuKms *gpu_kms);
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const char * meta_gpu_kms_get_file_path (MetaGpuKms *gpu_kms);
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gboolean meta_gpu_kms_is_clock_monotonic (MetaGpuKms *gpu_kms);
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void meta_gpu_kms_set_power_save_mode (MetaGpuKms *gpu_kms,
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uint64_t state,
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MetaKmsUpdate *kms_update);
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MetaCrtcMode * meta_gpu_kms_get_mode_from_kms_mode (MetaGpuKms *gpu_kms,
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MetaKmsMode *kms_mode);
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gboolean meta_drm_mode_equal (const drmModeModeInfo *one,
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const drmModeModeInfo *two);
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MetaGpuKmsFlipClosureContainer * 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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void meta_gpu_kms_flip_closure_container_free (MetaGpuKmsFlipClosureContainer *closure_container);
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#endif /* META_GPU_KMS_H */
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