drivers/gpu/drm/omapdrm/omap_drv.h

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/omapdrm/omap_drv.h

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/omapdrm/omap_drv.h
Extension
.h
Size
2633 bytes
Lines
113
Domain
Driver Families
Bucket
drivers/gpu
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

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_commit *s);

struct omap_global_state *omap_get_existing_global_state(struct omap_drm_private *priv);

#endif /* __OMAPDRM_DRV_H__ */

Annotation

Implementation Notes