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125 lines
3.5 KiB
C
125 lines
3.5 KiB
C
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#ifndef _INTEL_RINGBUFFER_H_
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#define _INTEL_RINGBUFFER_H_
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struct intel_hw_status_page {
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void *page_addr;
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unsigned int gfx_addr;
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struct drm_gem_object *obj;
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};
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struct drm_i915_gem_execbuffer2;
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struct intel_ring_buffer {
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const char *name;
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struct ring_regs {
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u32 ctl;
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u32 head;
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u32 tail;
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u32 start;
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} regs;
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unsigned int ring_flag;
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unsigned long size;
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unsigned int alignment;
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void *virtual_start;
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struct drm_device *dev;
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struct drm_gem_object *gem_object;
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unsigned int head;
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unsigned int tail;
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unsigned int space;
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u32 next_seqno;
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struct intel_hw_status_page status_page;
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u32 irq_gem_seqno; /* last seq seem at irq time */
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u32 waiting_gem_seqno;
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int user_irq_refcount;
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void (*user_irq_get)(struct drm_device *dev,
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struct intel_ring_buffer *ring);
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void (*user_irq_put)(struct drm_device *dev,
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struct intel_ring_buffer *ring);
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void (*setup_status_page)(struct drm_device *dev,
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struct intel_ring_buffer *ring);
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int (*init)(struct drm_device *dev,
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struct intel_ring_buffer *ring);
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unsigned int (*get_head)(struct drm_device *dev,
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struct intel_ring_buffer *ring);
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unsigned int (*get_tail)(struct drm_device *dev,
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struct intel_ring_buffer *ring);
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unsigned int (*get_active_head)(struct drm_device *dev,
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struct intel_ring_buffer *ring);
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void (*advance_ring)(struct drm_device *dev,
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struct intel_ring_buffer *ring);
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void (*flush)(struct drm_device *dev,
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struct intel_ring_buffer *ring,
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u32 invalidate_domains,
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u32 flush_domains);
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u32 (*add_request)(struct drm_device *dev,
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struct intel_ring_buffer *ring,
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struct drm_file *file_priv,
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u32 flush_domains);
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u32 (*get_gem_seqno)(struct drm_device *dev,
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struct intel_ring_buffer *ring);
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int (*dispatch_gem_execbuffer)(struct drm_device *dev,
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struct intel_ring_buffer *ring,
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struct drm_i915_gem_execbuffer2 *exec,
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struct drm_clip_rect *cliprects,
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uint64_t exec_offset);
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/**
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* List of objects currently involved in rendering from the
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* ringbuffer.
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*
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* Includes buffers having the contents of their GPU caches
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* flushed, not necessarily primitives. last_rendering_seqno
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* represents when the rendering involved will be completed.
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*
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* A reference is held on the buffer while on this list.
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*/
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struct list_head active_list;
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/**
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* List of breadcrumbs associated with GPU requests currently
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* outstanding.
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*/
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struct list_head request_list;
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wait_queue_head_t irq_queue;
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drm_local_map_t map;
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};
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static inline u32
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intel_read_status_page(struct intel_ring_buffer *ring,
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int reg)
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{
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u32 *regs = ring->status_page.page_addr;
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return regs[reg];
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}
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int intel_init_ring_buffer(struct drm_device *dev,
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struct intel_ring_buffer *ring);
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void intel_cleanup_ring_buffer(struct drm_device *dev,
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struct intel_ring_buffer *ring);
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int intel_wait_ring_buffer(struct drm_device *dev,
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struct intel_ring_buffer *ring, int n);
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int intel_wrap_ring_buffer(struct drm_device *dev,
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struct intel_ring_buffer *ring);
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void intel_ring_begin(struct drm_device *dev,
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struct intel_ring_buffer *ring, int n);
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void intel_ring_emit(struct drm_device *dev,
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struct intel_ring_buffer *ring, u32 data);
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void intel_fill_struct(struct drm_device *dev,
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struct intel_ring_buffer *ring,
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void *data,
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unsigned int len);
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void intel_ring_advance(struct drm_device *dev,
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struct intel_ring_buffer *ring);
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u32 intel_ring_get_seqno(struct drm_device *dev,
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struct intel_ring_buffer *ring);
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extern struct intel_ring_buffer render_ring;
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extern struct intel_ring_buffer bsd_ring;
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#endif /* _INTEL_RINGBUFFER_H_ */
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