I need this to untangle an include loop in the next patch. Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20170802115604.12734-2-daniel.vetter@ffwll.chtirimbino
Daniel Vetter
8 years ago
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#ifndef _DRM_DEVICE_H_ |
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#define _DRM_DEVICE_H_ |
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#include <linux/list.h> |
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#include <linux/kref.h> |
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#include <linux/mutex.h> |
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#include <linux/idr.h> |
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#include <drm/drm_hashtab.h> |
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#include <drm/drm_mode_config.h> |
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struct drm_driver; |
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struct drm_minor; |
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struct drm_master; |
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struct drm_device_dma; |
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struct drm_vblank_crtc; |
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struct drm_sg_mem; |
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struct drm_local_map; |
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struct drm_vma_offset_manager; |
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struct inode; |
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struct pci_dev; |
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struct pci_controller; |
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/**
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* DRM device structure. This structure represent a complete card that |
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* may contain multiple heads. |
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*/ |
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struct drm_device { |
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struct list_head legacy_dev_list;/**< list of devices per driver for stealth attach cleanup */ |
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int if_version; /**< Highest interface version set */ |
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/** \name Lifetime Management */ |
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/*@{ */ |
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struct kref ref; /**< Object ref-count */ |
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struct device *dev; /**< Device structure of bus-device */ |
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struct drm_driver *driver; /**< DRM driver managing the device */ |
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void *dev_private; /**< DRM driver private data */ |
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struct drm_minor *control; /**< Control node */ |
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struct drm_minor *primary; /**< Primary node */ |
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struct drm_minor *render; /**< Render node */ |
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bool registered; |
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/* currently active master for this device. Protected by master_mutex */ |
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struct drm_master *master; |
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atomic_t unplugged; /**< Flag whether dev is dead */ |
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struct inode *anon_inode; /**< inode for private address-space */ |
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char *unique; /**< unique name of the device */ |
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/*@} */ |
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/** \name Locks */ |
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/*@{ */ |
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struct mutex struct_mutex; /**< For others */ |
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struct mutex master_mutex; /**< For drm_minor::master and drm_file::is_master */ |
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/*@} */ |
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/** \name Usage Counters */ |
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/*@{ */ |
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int open_count; /**< Outstanding files open, protected by drm_global_mutex. */ |
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spinlock_t buf_lock; /**< For drm_device::buf_use and a few other things. */ |
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int buf_use; /**< Buffers in use -- cannot alloc */ |
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atomic_t buf_alloc; /**< Buffer allocation in progress */ |
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/*@} */ |
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struct mutex filelist_mutex; |
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struct list_head filelist; |
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/** \name Memory management */ |
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/*@{ */ |
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struct list_head maplist; /**< Linked list of regions */ |
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struct drm_open_hash map_hash; /**< User token hash table for maps */ |
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/** \name Context handle management */ |
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/*@{ */ |
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struct list_head ctxlist; /**< Linked list of context handles */ |
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struct mutex ctxlist_mutex; /**< For ctxlist */ |
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struct idr ctx_idr; |
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struct list_head vmalist; /**< List of vmas (for debugging) */ |
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/*@} */ |
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/** \name DMA support */ |
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/*@{ */ |
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struct drm_device_dma *dma; /**< Optional pointer for DMA support */ |
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/*@} */ |
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/** \name Context support */ |
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/*@{ */ |
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__volatile__ long context_flag; /**< Context swapping flag */ |
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int last_context; /**< Last current context */ |
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/*@} */ |
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/**
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* @irq_enabled: |
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* |
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* Indicates that interrupt handling is enabled, specifically vblank |
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* handling. Drivers which don't use drm_irq_install() need to set this |
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* to true manually. |
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*/ |
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bool irq_enabled; |
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int irq; |
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/**
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* @vblank_disable_immediate: |
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* |
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* If true, vblank interrupt will be disabled immediately when the |
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* refcount drops to zero, as opposed to via the vblank disable |
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* timer. |
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* |
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* This can be set to true it the hardware has a working vblank counter |
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* with high-precision timestamping (otherwise there are races) and the |
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* driver uses drm_crtc_vblank_on() and drm_crtc_vblank_off() |
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* appropriately. See also @max_vblank_count and |
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* &drm_crtc_funcs.get_vblank_counter. |
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*/ |
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bool vblank_disable_immediate; |
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/**
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* @vblank: |
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* |
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* Array of vblank tracking structures, one per &struct drm_crtc. For |
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* historical reasons (vblank support predates kernel modesetting) this |
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* is free-standing and not part of &struct drm_crtc itself. It must be |
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* initialized explicitly by calling drm_vblank_init(). |
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*/ |
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struct drm_vblank_crtc *vblank; |
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spinlock_t vblank_time_lock; /**< Protects vblank count and time updates during vblank enable/disable */ |
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spinlock_t vbl_lock; |
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/**
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* @max_vblank_count: |
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* |
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* Maximum value of the vblank registers. This value +1 will result in a |
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* wrap-around of the vblank register. It is used by the vblank core to |
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* handle wrap-arounds. |
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* |
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* If set to zero the vblank core will try to guess the elapsed vblanks |
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* between times when the vblank interrupt is disabled through |
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* high-precision timestamps. That approach is suffering from small |
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* races and imprecision over longer time periods, hence exposing a |
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* hardware vblank counter is always recommended. |
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* |
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* If non-zeor, &drm_crtc_funcs.get_vblank_counter must be set. |
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*/ |
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u32 max_vblank_count; /**< size of vblank counter register */ |
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/**
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* List of events |
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*/ |
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struct list_head vblank_event_list; |
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spinlock_t event_lock; |
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/*@} */ |
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struct drm_agp_head *agp; /**< AGP data */ |
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struct pci_dev *pdev; /**< PCI device structure */ |
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#ifdef __alpha__ |
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struct pci_controller *hose; |
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#endif |
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struct drm_sg_mem *sg; /**< Scatter gather memory */ |
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unsigned int num_crtcs; /**< Number of CRTCs on this device */ |
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struct { |
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int context; |
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struct drm_hw_lock *lock; |
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} sigdata; |
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struct drm_local_map *agp_buffer_map; |
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unsigned int agp_buffer_token; |
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struct drm_mode_config mode_config; /**< Current mode config */ |
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/** \name GEM information */ |
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/*@{ */ |
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struct mutex object_name_lock; |
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struct idr object_name_idr; |
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struct drm_vma_offset_manager *vma_offset_manager; |
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/*@} */ |
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int switch_power_state; |
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}; |
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#endif |
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