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omap_drv.h

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  • omap_drv.h 2.57 KiB
    /* SPDX-License-Identifier: GPL-2.0-only */
    /*
     * Copyright (C) 2011 Texas Instruments Incorporated - https://www.ti.com/
     * Author: Rob Clark <rob@ti.com>
     */
    
    #ifndef __OMAPDRM_DRV_H__
    #define __OMAPDRM_DRV_H__
    
    #include <linux/module.h>
    #include <linux/types.h>
    #include <linux/workqueue.h>
    
    #include "dss/omapdss.h"
    #include "dss/dss.h"
    
    #include <drm/drm_atomic.h>
    #include <drm/drm_gem.h>
    #include <drm/omap_drm.h>
    
    #include "omap_crtc.h"
    #include "omap_encoder.h"
    #include "omap_fb.h"
    #include "omap_gem.h"
    #include "omap_irq.h"
    #include "omap_plane.h"
    #include "omap_overlay.h"
    
    #define DBG(fmt, ...) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
    #define VERB(fmt, ...) if (0) DRM_DEBUG_DRIVER(fmt, ##__VA_ARGS__) /* verbose debug */
    
    #define MODULE_NAME     "omapdrm"
    
    struct omap_drm_usergart;
    struct omap_fbdev;
    
    struct omap_drm_pipeline {
    	struct drm_crtc *crtc;
    	struct drm_encoder *encoder;
    	struct drm_connector *connector;
    	struct omap_dss_device *output;
    	unsigned int alias_id;
    };
    
    /*
     * Global private object state for tracking resources that are shared across
     * multiple kms objects (planes/crtcs/etc).
     */
    #define to_omap_global_state(x) container_of(x, struct omap_global_state, base)
    
    struct omap_global_state {
    	struct drm_private_state base;
    
    	/* global atomic state of assignment between overlays and planes */
    	struct drm_plane *hwoverlay_to_plane[8];
    };
    
    struct omap_drm_private {
    	struct drm_device *ddev;
    	struct device *dev;
    	u32 omaprev;
    
    	struct dss_device *dss;
    	struct dispc_device *dispc;
    
    	bool irq_enabled;
    
    	unsigned int num_pipes;
    	struct omap_drm_pipeline pipes[8];
    	struct omap_drm_pipeline *channels[8];
    
    	unsigned int num_planes;
    	struct drm_plane *planes[8];
    
    	unsigned int num_ovls;
    	struct omap_hw_overlay *overlays[8];
    
    	struct drm_private_obj glob_obj;
    
    	struct workqueue_struct *wq;
    
    	/* lock for obj_list below */
    	struct mutex list_lock;
    
    	/* list of GEM objects: */
    	struct list_head obj_list;
    
    	struct omap_drm_usergart *usergart;
    	bool has_dmm;
    
    	/* properties: */
    	struct drm_property *zorder_prop;
    
    	/* irq handling: */
    	spinlock_t wait_lock;		/* protects the wait_list */
    	struct list_head wait_list;	/* list of omap_irq_wait */
    	u32 irq_mask;			/* enabled irqs in addition to wait_list */
    
    	/* memory bandwidth limit if it is needed on the platform */
    	unsigned int max_bandwidth;
    
    	struct omap_fbdev *fbdev;
    };
    
    
    void omap_debugfs_init(struct drm_minor *minor);
    
    struct omap_global_state * __must_check omap_get_global_state(struct drm_atomic_state *s);
    
    struct omap_global_state *omap_get_existing_global_state(struct omap_drm_private *priv);
    
    #endif /* __OMAPDRM_DRV_H__ */