include/uapi/drm/drm.h

Source file repositories/reference/linux-study-clean/include/uapi/drm/drm.h

File Facts

System
Linux kernel
Corpus path
include/uapi/drm/drm.h
Extension
.h
Size
47450 bytes
Lines
1481
Domain
Repository Root And Misc
Bucket
include
Inferred role
Repository Root And Misc: implementation source
Status
source implementation candidate

Why This File Exists

Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.

Dependency Surface

Detected Declarations

Annotated Snippet

struct drm_clip_rect {
	unsigned short x1;
	unsigned short y1;
	unsigned short x2;
	unsigned short y2;
};

/*
 * Drawable information.
 */
struct drm_drawable_info {
	unsigned int num_rects;
	struct drm_clip_rect *rects;
};

/*
 * Texture region,
 */
struct drm_tex_region {
	unsigned char next;
	unsigned char prev;
	unsigned char in_use;
	unsigned char padding;
	unsigned int age;
};

/*
 * Hardware lock.
 *
 * The lock structure is a simple cache-line aligned integer.  To avoid
 * processor bus contention on a multiprocessor system, there should not be any
 * other data stored in the same cache line.
 */
struct drm_hw_lock {
	__volatile__ unsigned int lock;		/**< lock variable */
	char padding[60];			/**< Pad to cache line */
};

/*
 * DRM_IOCTL_VERSION ioctl argument type.
 *
 * \sa drmGetVersion().
 */
struct drm_version {
	int version_major;	  /**< Major version */
	int version_minor;	  /**< Minor version */
	int version_patchlevel;	  /**< Patch level */
	__kernel_size_t name_len;	  /**< Length of name buffer */
	char __user *name;	  /**< Name of driver */
	__kernel_size_t date_len;	  /**< Length of date buffer */
	char __user *date;	  /**< User-space buffer to hold date */
	__kernel_size_t desc_len;	  /**< Length of desc buffer */
	char __user *desc;	  /**< User-space buffer to hold desc */
};

/*
 * DRM_IOCTL_GET_UNIQUE ioctl argument type.
 *
 * \sa drmGetBusid() and drmSetBusId().
 */
struct drm_unique {
	__kernel_size_t unique_len;	  /**< Length of unique */
	char __user *unique;	  /**< Unique name for driver instantiation */
};

struct drm_list {
	int count;		  /**< Length of user-space structures */
	struct drm_version __user *version;
};

struct drm_block {
	int unused;
};

/*
 * DRM_IOCTL_CONTROL ioctl argument type.
 *
 * \sa drmCtlInstHandler() and drmCtlUninstHandler().
 */
struct drm_control {
	enum {
		DRM_ADD_COMMAND,
		DRM_RM_COMMAND,
		DRM_INST_HANDLER,
		DRM_UNINST_HANDLER
	} func;
	int irq;
};

/*

Annotation

Implementation Notes