// SPDX-License-Identifier: GPL-2.0-only /* * Copyright (C) 2013 Red Hat * Copyright (c) 2014-2018, The Linux Foundation. All rights reserved. * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved. * * Author: Rob Clark <[email protected]> */ #define pr_fmt(fmt) … #include <linux/debugfs.h> #include <linux/dma-buf.h> #include <linux/of_irq.h> #include <linux/pm_opp.h> #include <drm/drm_crtc.h> #include <drm/drm_file.h> #include <drm/drm_framebuffer.h> #include <drm/drm_vblank.h> #include <drm/drm_writeback.h> #include "msm_drv.h" #include "msm_mmu.h" #include "msm_mdss.h" #include "msm_gem.h" #include "disp/msm_disp_snapshot.h" #include "dpu_core_irq.h" #include "dpu_crtc.h" #include "dpu_encoder.h" #include "dpu_formats.h" #include "dpu_hw_vbif.h" #include "dpu_kms.h" #include "dpu_plane.h" #include "dpu_vbif.h" #include "dpu_writeback.h" #define CREATE_TRACE_POINTS #include "dpu_trace.h" /* * To enable overall DRM driver logging * # echo 0x2 > /sys/module/drm/parameters/debug * * To enable DRM driver h/w logging * # echo <mask> > /sys/kernel/debug/dri/0/debug/hw_log_mask * * See dpu_hw_mdss.h for h/w logging mask definitions (search for DPU_DBG_MASK_) */ #define DPU_DEBUGFS_DIR … #define DPU_DEBUGFS_HWMASKNAME … static int dpu_kms_hw_init(struct msm_kms *kms); static void _dpu_kms_mmu_destroy(struct dpu_kms *dpu_kms); #ifdef CONFIG_DEBUG_FS static int _dpu_danger_signal_status(struct seq_file *s, bool danger_status) { … } static int dpu_debugfs_danger_stats_show(struct seq_file *s, void *v) { … } DEFINE_SHOW_ATTRIBUTE(…); static int dpu_debugfs_safe_stats_show(struct seq_file *s, void *v) { … } DEFINE_SHOW_ATTRIBUTE(…); static ssize_t _dpu_plane_danger_read(struct file *file, char __user *buff, size_t count, loff_t *ppos) { … } static void _dpu_plane_set_danger_state(struct dpu_kms *kms, bool enable) { … } static ssize_t _dpu_plane_danger_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos) { … } static const struct file_operations dpu_plane_danger_enable = …; static void dpu_debugfs_danger_init(struct dpu_kms *dpu_kms, struct dentry *parent) { … } /* * Companion structure for dpu_debugfs_create_regset32. */ struct dpu_debugfs_regset32 { … }; static int dpu_regset32_show(struct seq_file *s, void *data) { … } DEFINE_SHOW_ATTRIBUTE(…); void dpu_debugfs_create_regset32(const char *name, umode_t mode, void *parent, uint32_t offset, uint32_t length, struct dpu_kms *dpu_kms) { … } static void dpu_debugfs_sspp_init(struct dpu_kms *dpu_kms, struct dentry *debugfs_root) { … } static int dpu_kms_debugfs_init(struct msm_kms *kms, struct drm_minor *minor) { … } #endif /* Global/shared object state funcs */ /* * This is a helper that returns the private state currently in operation. * Note that this would return the "old_state" if called in the atomic check * path, and the "new_state" after the atomic swap has been done. */ struct dpu_global_state * dpu_kms_get_existing_global_state(struct dpu_kms *dpu_kms) { … } /* * This acquires the modeset lock set aside for global state, creates * a new duplicated private object state. */ struct dpu_global_state *dpu_kms_get_global_state(struct drm_atomic_state *s) { … } static struct drm_private_state * dpu_kms_global_duplicate_state(struct drm_private_obj *obj) { … } static void dpu_kms_global_destroy_state(struct drm_private_obj *obj, struct drm_private_state *state) { … } static void dpu_kms_global_print_state(struct drm_printer *p, const struct drm_private_state *state) { … } static const struct drm_private_state_funcs dpu_kms_global_state_funcs = …; static int dpu_kms_global_obj_init(struct dpu_kms *dpu_kms) { … } static void dpu_kms_global_obj_fini(struct dpu_kms *dpu_kms) { … } static int dpu_kms_parse_data_bus_icc_path(struct dpu_kms *dpu_kms) { … } static int dpu_kms_enable_vblank(struct msm_kms *kms, struct drm_crtc *crtc) { … } static void dpu_kms_disable_vblank(struct msm_kms *kms, struct drm_crtc *crtc) { … } static void dpu_kms_enable_commit(struct msm_kms *kms) { … } static void dpu_kms_disable_commit(struct msm_kms *kms) { … } static void dpu_kms_flush_commit(struct msm_kms *kms, unsigned crtc_mask) { … } static void dpu_kms_complete_commit(struct msm_kms *kms, unsigned crtc_mask) { … } static void dpu_kms_wait_for_commit_done(struct msm_kms *kms, struct drm_crtc *crtc) { … } static void dpu_kms_wait_flush(struct msm_kms *kms, unsigned crtc_mask) { … } static const char *dpu_vsync_sources[] = …; static int dpu_kms_dsi_set_te_source(struct msm_display_info *info, struct msm_dsi *dsi) { … } static int _dpu_kms_initialize_dsi(struct drm_device *dev, struct msm_drm_private *priv, struct dpu_kms *dpu_kms) { … } static int _dpu_kms_initialize_displayport(struct drm_device *dev, struct msm_drm_private *priv, struct dpu_kms *dpu_kms) { … } static int _dpu_kms_initialize_hdmi(struct drm_device *dev, struct msm_drm_private *priv, struct dpu_kms *dpu_kms) { … } static int _dpu_kms_initialize_writeback(struct drm_device *dev, struct msm_drm_private *priv, struct dpu_kms *dpu_kms, const u32 *wb_formats, int n_formats) { … } /** * _dpu_kms_setup_displays - create encoders, bridges and connectors * for underlying displays * @dev: Pointer to drm device structure * @priv: Pointer to private drm device data * @dpu_kms: Pointer to dpu kms structure * Returns: Zero on success */ static int _dpu_kms_setup_displays(struct drm_device *dev, struct msm_drm_private *priv, struct dpu_kms *dpu_kms) { … } #define MAX_PLANES … static int _dpu_kms_drm_obj_init(struct dpu_kms *dpu_kms) { … } static void _dpu_kms_hw_destroy(struct dpu_kms *dpu_kms) { … } static void dpu_kms_destroy(struct msm_kms *kms) { … } static int dpu_irq_postinstall(struct msm_kms *kms) { … } static void dpu_kms_mdp_snapshot(struct msm_disp_state *disp_state, struct msm_kms *kms) { … } static const struct msm_kms_funcs kms_funcs = …; static void _dpu_kms_mmu_destroy(struct dpu_kms *dpu_kms) { … } static int _dpu_kms_mmu_init(struct dpu_kms *dpu_kms) { … } unsigned long dpu_kms_get_clk_rate(struct dpu_kms *dpu_kms, char *clock_name) { … } #define DPU_PERF_DEFAULT_MAX_CORE_CLK_RATE … static int dpu_kms_hw_init(struct msm_kms *kms) { … } static int dpu_kms_init(struct drm_device *ddev) { … } static int dpu_kms_mmap_mdp5(struct dpu_kms *dpu_kms) { … } static int dpu_kms_mmap_dpu(struct dpu_kms *dpu_kms) { … } static int dpu_dev_probe(struct platform_device *pdev) { … } static void dpu_dev_remove(struct platform_device *pdev) { … } static int __maybe_unused dpu_runtime_suspend(struct device *dev) { … } static int __maybe_unused dpu_runtime_resume(struct device *dev) { … } static const struct dev_pm_ops dpu_pm_ops = …; static const struct of_device_id dpu_dt_match[] = …; MODULE_DEVICE_TABLE(of, dpu_dt_match); static struct platform_driver dpu_driver = …; void __init msm_dpu_register(void) { … } void __exit msm_dpu_unregister(void) { … }
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