📄 drm.h
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_DRM_LOCK_FLUSH_ALL = 0x08, /* Flush all DMA queues first */ /* These *HALT* flags aren't supported yet -- they will be used to support the full-screen DGA-like mode. */ _DRM_HALT_ALL_QUEUES = 0x10, /* Halt all current and future queues */ _DRM_HALT_CUR_QUEUES = 0x20 /* Halt all current queues */} drm_lock_flags_t;typedef struct drm_lock { int context; drm_lock_flags_t flags;} drm_lock_t;typedef enum drm_dma_flags { /* These values *MUST* match xf86drm.h */ /* Flags for DMA buffer dispatch */ _DRM_DMA_BLOCK = 0x01, /* Block until buffer dispatched. Note, the buffer may not yet have been processed by the hardware -- getting a hardware lock with the hardware quiescent will ensure that the buffer has been processed. */ _DRM_DMA_WHILE_LOCKED = 0x02, /* Dispatch while lock held */ _DRM_DMA_PRIORITY = 0x04, /* High priority dispatch */ /* Flags for DMA buffer request */ _DRM_DMA_WAIT = 0x10, /* Wait for free buffers */ _DRM_DMA_SMALLER_OK = 0x20, /* Smaller-than-requested buffers ok */ _DRM_DMA_LARGER_OK = 0x40 /* Larger-than-requested buffers ok */} drm_dma_flags_t;typedef struct drm_buf_desc { int count; /* Number of buffers of this size */ int size; /* Size in bytes */ int low_mark; /* Low water mark */ int high_mark; /* High water mark */ enum { _DRM_PAGE_ALIGN = 0x01, /* Align on page boundaries for DMA */ _DRM_AGP_BUFFER = 0x02, /* Buffer is in agp space */ _DRM_SG_BUFFER = 0x04 /* Scatter/gather memory buffer */ } flags; unsigned long agp_start; /* Start address of where the agp buffers * are in the agp aperture */} drm_buf_desc_t;typedef struct drm_buf_info { int count; /* Entries in list */ drm_buf_desc_t *list;} drm_buf_info_t;typedef struct drm_buf_free { int count; int *list;} drm_buf_free_t;typedef struct drm_buf_pub { int idx; /* Index into master buflist */ int total; /* Buffer size */ int used; /* Amount of buffer in use (for DMA) */ void *address; /* Address of buffer */} drm_buf_pub_t;typedef struct drm_buf_map { int count; /* Length of buflist */ void *virtual; /* Mmaped area in user-virtual */ drm_buf_pub_t *list; /* Buffer information */} drm_buf_map_t;typedef struct drm_dma { /* Indices here refer to the offset into buflist in drm_buf_get_t. */ int context; /* Context handle */ int send_count; /* Number of buffers to send */ int *send_indices; /* List of handles to buffers */ int *send_sizes; /* Lengths of data to send */ drm_dma_flags_t flags; /* Flags */ int request_count; /* Number of buffers requested */ int request_size; /* Desired size for buffers */ int *request_indices; /* Buffer information */ int *request_sizes; int granted_count; /* Number of buffers granted */} drm_dma_t;typedef enum { _DRM_CONTEXT_PRESERVED = 0x01, _DRM_CONTEXT_2DONLY = 0x02} drm_ctx_flags_t;typedef struct drm_ctx { drm_context_t handle; drm_ctx_flags_t flags;} drm_ctx_t;typedef struct drm_ctx_res { int count; drm_ctx_t *contexts;} drm_ctx_res_t;typedef struct drm_draw { drm_drawable_t handle;} drm_draw_t;typedef struct drm_auth { drm_magic_t magic;} drm_auth_t;typedef struct drm_irq_busid { int irq; int busnum; int devnum; int funcnum;} drm_irq_busid_t;typedef enum { _DRM_VBLANK_ABSOLUTE = 0x0, /* Wait for specific vblank sequence number */ _DRM_VBLANK_RELATIVE = 0x1, /* Wait for given number of vblanks */ _DRM_VBLANK_SIGNAL = 0x40000000 /* Send signal instead of blocking */} drm_vblank_seq_type_t;#define _DRM_VBLANK_FLAGS_MASK _DRM_VBLANK_SIGNALstruct drm_wait_vblank_request { drm_vblank_seq_type_t type; unsigned int sequence; unsigned long signal;};struct drm_wait_vblank_reply { drm_vblank_seq_type_t type; unsigned int sequence; long tval_sec; long tval_usec;};typedef union drm_wait_vblank { struct drm_wait_vblank_request request; struct drm_wait_vblank_reply reply;} drm_wait_vblank_t;typedef struct drm_agp_mode { unsigned long mode;} drm_agp_mode_t; /* For drm_agp_alloc -- allocated a buffer */typedef struct drm_agp_buffer { unsigned long size; /* In bytes -- will round to page boundary */ unsigned long handle; /* Used for BIND/UNBIND ioctls */ unsigned long type; /* Type of memory to allocate */ unsigned long physical; /* Physical used by i810 */} drm_agp_buffer_t; /* For drm_agp_bind */typedef struct drm_agp_binding { unsigned long handle; /* From drm_agp_buffer */ unsigned long offset; /* In bytes -- will round to page boundary */} drm_agp_binding_t;typedef struct drm_agp_info { int agp_version_major; int agp_version_minor; unsigned long mode; unsigned long aperture_base; /* physical address */ unsigned long aperture_size; /* bytes */ unsigned long memory_allowed; /* bytes */ unsigned long memory_used; /* PCI information */ unsigned short id_vendor; unsigned short id_device;} drm_agp_info_t;typedef struct drm_scatter_gather { unsigned long size; /* In bytes -- will round to page boundary */ unsigned long handle; /* Used for mapping / unmapping */} drm_scatter_gather_t;#define DRM_IOCTL_BASE 'd'#define DRM_IO(nr) _IO(DRM_IOCTL_BASE,nr)#define DRM_IOR(nr,type) _IOR(DRM_IOCTL_BASE,nr,type)#define DRM_IOW(nr,type) _IOW(DRM_IOCTL_BASE,nr,type)#define DRM_IOWR(nr,type) _IOWR(DRM_IOCTL_BASE,nr,type)#define DRM_IOCTL_VERSION DRM_IOWR(0x00, drm_version_t)#define DRM_IOCTL_GET_UNIQUE DRM_IOWR(0x01, drm_unique_t)#define DRM_IOCTL_GET_MAGIC DRM_IOR( 0x02, drm_auth_t)#define DRM_IOCTL_IRQ_BUSID DRM_IOWR(0x03, drm_irq_busid_t)#define DRM_IOCTL_GET_MAP DRM_IOWR(0x04, drm_map_t)#define DRM_IOCTL_GET_CLIENT DRM_IOWR(0x05, drm_client_t)#define DRM_IOCTL_GET_STATS DRM_IOR( 0x06, drm_stats_t)#define DRM_IOCTL_SET_UNIQUE DRM_IOW( 0x10, drm_unique_t)#define DRM_IOCTL_AUTH_MAGIC DRM_IOW( 0x11, drm_auth_t)#define DRM_IOCTL_BLOCK DRM_IOWR(0x12, drm_block_t)#define DRM_IOCTL_UNBLOCK DRM_IOWR(0x13, drm_block_t)#define DRM_IOCTL_CONTROL DRM_IOW( 0x14, drm_control_t)#define DRM_IOCTL_ADD_MAP DRM_IOWR(0x15, drm_map_t)#define DRM_IOCTL_ADD_BUFS DRM_IOWR(0x16, drm_buf_desc_t)#define DRM_IOCTL_MARK_BUFS DRM_IOW( 0x17, drm_buf_desc_t)#define DRM_IOCTL_INFO_BUFS DRM_IOWR(0x18, drm_buf_info_t)#define DRM_IOCTL_MAP_BUFS DRM_IOWR(0x19, drm_buf_map_t)#define DRM_IOCTL_FREE_BUFS DRM_IOW( 0x1a, drm_buf_free_t)#define DRM_IOCTL_RM_MAP DRM_IOW( 0x1b, drm_map_t)#define DRM_IOCTL_SET_SAREA_CTX DRM_IOW( 0x1c, drm_ctx_priv_map_t)#define DRM_IOCTL_GET_SAREA_CTX DRM_IOWR(0x1d, drm_ctx_priv_map_t)#define DRM_IOCTL_ADD_CTX DRM_IOWR(0x20, drm_ctx_t)#define DRM_IOCTL_RM_CTX DRM_IOWR(0x21, drm_ctx_t)#define DRM_IOCTL_MOD_CTX DRM_IOW( 0x22, drm_ctx_t)#define DRM_IOCTL_GET_CTX DRM_IOWR(0x23, drm_ctx_t)#define DRM_IOCTL_SWITCH_CTX DRM_IOW( 0x24, drm_ctx_t)#define DRM_IOCTL_NEW_CTX DRM_IOW( 0x25, drm_ctx_t)#define DRM_IOCTL_RES_CTX DRM_IOWR(0x26, drm_ctx_res_t)#define DRM_IOCTL_ADD_DRAW DRM_IOWR(0x27, drm_draw_t)#define DRM_IOCTL_RM_DRAW DRM_IOWR(0x28, drm_draw_t)#define DRM_IOCTL_DMA DRM_IOWR(0x29, drm_dma_t)#define DRM_IOCTL_LOCK DRM_IOW( 0x2a, drm_lock_t)#define DRM_IOCTL_UNLOCK DRM_IOW( 0x2b, drm_lock_t)#define DRM_IOCTL_FINISH DRM_IOW( 0x2c, drm_lock_t)#define DRM_IOCTL_AGP_ACQUIRE DRM_IO( 0x30)#define DRM_IOCTL_AGP_RELEASE DRM_IO( 0x31)#define DRM_IOCTL_AGP_ENABLE DRM_IOW( 0x32, drm_agp_mode_t)#define DRM_IOCTL_AGP_INFO DRM_IOR( 0x33, drm_agp_info_t)#define DRM_IOCTL_AGP_ALLOC DRM_IOWR(0x34, drm_agp_buffer_t)#define DRM_IOCTL_AGP_FREE DRM_IOW( 0x35, drm_agp_buffer_t)#define DRM_IOCTL_AGP_BIND DRM_IOW( 0x36, drm_agp_binding_t)#define DRM_IOCTL_AGP_UNBIND DRM_IOW( 0x37, drm_agp_binding_t)#define DRM_IOCTL_SG_ALLOC DRM_IOW( 0x38, drm_scatter_gather_t)#define DRM_IOCTL_SG_FREE DRM_IOW( 0x39, drm_scatter_gather_t)#define DRM_IOCTL_WAIT_VBLANK DRM_IOWR(0x3a, drm_wait_vblank_t)/* Device specfic ioctls should only be in their respective headers * The device specific ioctl range is 0x40 to 0x79. */#define DRM_COMMAND_BASE 0x40#endif⌨️ 快捷键说明
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