/* * Copyright (c) 2016-2020, The Linux Foundation. All rights reserved. * Copyright (C) 2013 Red Hat * Author: Rob Clark * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License version 2 as published by * the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program. If not, see . */ #ifndef __MSM_KMS_H__ #define __MSM_KMS_H__ #include #include #include "msm_drv.h" #define MAX_PLANE 4 /** * Device Private DRM Mode Flags * drm_mode->private_flags */ /* Connector has interpreted seamless transition request as dynamic fps */ #define MSM_MODE_FLAG_SEAMLESS_DYNAMIC_FPS (1<<0) /* Transition to new mode requires a wait-for-vblank before the modeset */ #define MSM_MODE_FLAG_VBLANK_PRE_MODESET (1<<1) /* Request to switch the connector mode */ #define MSM_MODE_FLAG_SEAMLESS_DMS (1<<2) /* Request to switch the fps */ #define MSM_MODE_FLAG_SEAMLESS_VRR (1<<3) /* Request to switch the panel mode */ #define MSM_MODE_FLAG_SEAMLESS_POMS (1<<4) /* Request to switch the bit clk */ #define MSM_MODE_FLAG_SEAMLESS_DYN_CLK (1<<5) /* As there are different display controller blocks depending on the * snapdragon version, the kms support is split out and the appropriate * implementation is loaded at runtime. The kms module is responsible * for constructing the appropriate planes/crtcs/encoders/connectors. */ struct msm_kms_funcs { /* hw initialization: */ int (*hw_init)(struct msm_kms *kms); int (*postinit)(struct msm_kms *kms); /* irq handling: */ void (*irq_preinstall)(struct msm_kms *kms); int (*irq_postinstall)(struct msm_kms *kms); void (*irq_uninstall)(struct msm_kms *kms); irqreturn_t (*irq)(struct msm_kms *kms); int (*enable_vblank)(struct msm_kms *kms, struct drm_crtc *crtc); void (*disable_vblank)(struct msm_kms *kms, struct drm_crtc *crtc); /* modeset, bracketing atomic_commit(): */ void (*prepare_fence)(struct msm_kms *kms, struct drm_atomic_state *state); void (*prepare_commit)(struct msm_kms *kms, struct drm_atomic_state *state); void (*commit)(struct msm_kms *kms, struct drm_atomic_state *state); void (*complete_commit)(struct msm_kms *kms, struct drm_atomic_state *state); /* functions to wait for atomic commit completed on each CRTC */ void (*wait_for_crtc_commit_done)(struct msm_kms *kms, struct drm_crtc *crtc); /* function pointer to wait for pixel transfer to panel to complete*/ void (*wait_for_tx_complete)(struct msm_kms *kms, struct drm_crtc *crtc); /* get msm_format w/ optional format modifiers from drm_mode_fb_cmd2 */ const struct msm_format *(*get_format)(struct msm_kms *kms, const uint32_t format, const uint64_t modifier); /* do format checking on format modified through fb_cmd2 modifiers */ int (*check_modified_format)(const struct msm_kms *kms, const struct msm_format *msm_fmt, const struct drm_mode_fb_cmd2 *cmd, struct drm_gem_object **bos); /* perform complete atomic check of given atomic state */ int (*atomic_check)(struct msm_kms *kms, struct drm_atomic_state *state); /* misc: */ long (*round_pixclk)(struct msm_kms *kms, unsigned long rate, struct drm_encoder *encoder); int (*set_split_display)(struct msm_kms *kms, struct drm_encoder *encoder, struct drm_encoder *slave_encoder, bool is_cmd_mode); void (*postopen)(struct msm_kms *kms, struct drm_file *file); void (*preclose)(struct msm_kms *kms, struct drm_file *file); void (*postclose)(struct msm_kms *kms, struct drm_file *file); void (*lastclose)(struct msm_kms *kms, struct drm_modeset_acquire_ctx *ctx); int (*register_events)(struct msm_kms *kms, struct drm_mode_object *obj, u32 event, bool en); void (*set_encoder_mode)(struct msm_kms *kms, struct drm_encoder *encoder, bool cmd_mode); /* pm suspend/resume hooks */ int (*pm_suspend)(struct device *dev); int (*pm_resume)(struct device *dev); /* cleanup: */ void (*destroy)(struct msm_kms *kms); /* get address space */ struct msm_gem_address_space *(*get_address_space)( struct msm_kms *kms, unsigned int domain); struct device *(*get_address_space_device)( struct msm_kms *kms, unsigned int domain); #ifdef CONFIG_DEBUG_FS /* debugfs: */ int (*debugfs_init)(struct msm_kms *kms, struct drm_minor *minor); #endif /* handle continuous splash */ int (*cont_splash_config)(struct msm_kms *kms); /* check for continuous splash status */ bool (*check_for_splash)(struct msm_kms *kms, struct drm_crtc *crtc); /* topology information */ int (*get_mixer_count)(const struct msm_kms *kms, const struct drm_display_mode *mode, const struct msm_resource_caps_info *res, u32 *num_lm); #if defined(OPLUS_FEATURE_PXLW_IRIS5) || defined(CONFIG_PXLW_SOFT_IRIS) int (*iris_operate)(struct msm_kms *kms, u32 operate_type, struct msm_iris_operate_value *operate_value); #endif }; struct msm_kms { const struct msm_kms_funcs *funcs; /* irq number to be passed on to drm_irq_install */ int irq; /* mapper-id used to request GEM buffer mapped for scanout: */ struct msm_gem_address_space *aspace; }; /** * Subclass of drm_atomic_state, to allow kms backend to have driver * private global state. The kms backend can do whatever it wants * with the ->state ptr. On ->atomic_state_clear() the ->state ptr * is kfree'd and set back to NULL. */ struct msm_kms_state { struct drm_atomic_state base; void *state; }; #define to_kms_state(x) container_of(x, struct msm_kms_state, base) static inline void msm_kms_init(struct msm_kms *kms, const struct msm_kms_funcs *funcs) { kms->funcs = funcs; } #ifdef CONFIG_DRM_MSM_MDP4 struct msm_kms *mdp4_kms_init(struct drm_device *dev); #else static inline struct msm_kms *mdp4_kms_init(struct drm_device *dev) { return NULL; }; #endif #ifdef CONFIG_DRM_MSM_MDP5 struct msm_kms *mdp5_kms_init(struct drm_device *dev); int msm_mdss_init(struct drm_device *dev); void msm_mdss_destroy(struct drm_device *dev); struct msm_kms *mdp5_kms_init(struct drm_device *dev); int msm_mdss_enable(struct msm_mdss *mdss); int msm_mdss_disable(struct msm_mdss *mdss); #else static inline int msm_mdss_init(struct drm_device *dev) { return 0; } static inline void msm_mdss_destroy(struct drm_device *dev) { } static inline struct msm_kms *mdp5_kms_init(struct drm_device *dev) { return NULL; } static inline int msm_mdss_enable(struct msm_mdss *mdss) { return 0; } static inline int msm_mdss_disable(struct msm_mdss *mdss) { return 0; } #endif struct msm_kms *sde_kms_init(struct drm_device *dev); /** * Mode Set Utility Functions */ static inline bool msm_is_mode_seamless(const struct drm_display_mode *mode) { return (mode->flags & DRM_MODE_FLAG_SEAMLESS); } static inline bool msm_is_mode_seamless_dms(const struct drm_display_mode *mode) { return mode ? (mode->private_flags & MSM_MODE_FLAG_SEAMLESS_DMS) : false; } static inline bool msm_is_mode_dynamic_fps(const struct drm_display_mode *mode) { return ((mode->flags & DRM_MODE_FLAG_SEAMLESS) && (mode->private_flags & MSM_MODE_FLAG_SEAMLESS_DYNAMIC_FPS)); } static inline bool msm_is_mode_seamless_vrr(const struct drm_display_mode *mode) { return mode ? (mode->private_flags & MSM_MODE_FLAG_SEAMLESS_VRR) : false; } static inline bool msm_is_mode_seamless_poms( const struct drm_display_mode *mode) { return mode ? (mode->private_flags & MSM_MODE_FLAG_SEAMLESS_POMS) : false; } static inline bool msm_is_mode_seamless_dyn_clk( const struct drm_display_mode *mode) { return mode ? (mode->private_flags & MSM_MODE_FLAG_SEAMLESS_DYN_CLK) : false; } static inline bool msm_needs_vblank_pre_modeset( const struct drm_display_mode *mode) { return (mode->private_flags & MSM_MODE_FLAG_VBLANK_PRE_MODESET); } #endif /* __MSM_KMS_H__ */