| #ifndef _INTEL_RINGBUFFER_H_ |
| #define _INTEL_RINGBUFFER_H_ |
| |
| struct intel_hw_status_page { |
| void *page_addr; |
| unsigned int gfx_addr; |
| struct drm_gem_object *obj; |
| }; |
| |
| struct drm_i915_gem_execbuffer2; |
| struct intel_ring_buffer { |
| const char *name; |
| enum intel_ring_id { |
| RING_RENDER = 0x1, |
| RING_BSD = 0x2, |
| } id; |
| struct ring_regs { |
| u32 ctl; |
| u32 head; |
| u32 tail; |
| u32 start; |
| } regs; |
| unsigned long size; |
| unsigned int alignment; |
| void *virtual_start; |
| struct drm_device *dev; |
| struct drm_gem_object *gem_object; |
| |
| unsigned int head; |
| unsigned int tail; |
| unsigned int space; |
| struct intel_hw_status_page status_page; |
| |
| u32 irq_gem_seqno; /* last seq seem at irq time */ |
| u32 waiting_gem_seqno; |
| int user_irq_refcount; |
| void (*user_irq_get)(struct drm_device *dev, |
| struct intel_ring_buffer *ring); |
| void (*user_irq_put)(struct drm_device *dev, |
| struct intel_ring_buffer *ring); |
| void (*setup_status_page)(struct drm_device *dev, |
| struct intel_ring_buffer *ring); |
| |
| int (*init)(struct drm_device *dev, |
| struct intel_ring_buffer *ring); |
| |
| unsigned int (*get_head)(struct drm_device *dev, |
| struct intel_ring_buffer *ring); |
| unsigned int (*get_tail)(struct drm_device *dev, |
| struct intel_ring_buffer *ring); |
| unsigned int (*get_active_head)(struct drm_device *dev, |
| struct intel_ring_buffer *ring); |
| void (*advance_ring)(struct drm_device *dev, |
| struct intel_ring_buffer *ring); |
| void (*flush)(struct drm_device *dev, |
| struct intel_ring_buffer *ring, |
| u32 invalidate_domains, |
| u32 flush_domains); |
| u32 (*add_request)(struct drm_device *dev, |
| struct intel_ring_buffer *ring, |
| struct drm_file *file_priv, |
| u32 flush_domains); |
| u32 (*get_gem_seqno)(struct drm_device *dev, |
| struct intel_ring_buffer *ring); |
| int (*dispatch_gem_execbuffer)(struct drm_device *dev, |
| struct intel_ring_buffer *ring, |
| struct drm_i915_gem_execbuffer2 *exec, |
| struct drm_clip_rect *cliprects, |
| uint64_t exec_offset); |
| |
| /** |
| * List of objects currently involved in rendering from the |
| * ringbuffer. |
| * |
| * Includes buffers having the contents of their GPU caches |
| * flushed, not necessarily primitives. last_rendering_seqno |
| * represents when the rendering involved will be completed. |
| * |
| * A reference is held on the buffer while on this list. |
| */ |
| struct list_head active_list; |
| |
| /** |
| * List of breadcrumbs associated with GPU requests currently |
| * outstanding. |
| */ |
| struct list_head request_list; |
| |
| /** |
| * Do we have some not yet emitted requests outstanding? |
| */ |
| bool outstanding_lazy_request; |
| |
| wait_queue_head_t irq_queue; |
| drm_local_map_t map; |
| }; |
| |
| static inline u32 |
| intel_read_status_page(struct intel_ring_buffer *ring, |
| int reg) |
| { |
| u32 *regs = ring->status_page.page_addr; |
| return regs[reg]; |
| } |
| |
| int intel_init_ring_buffer(struct drm_device *dev, |
| struct intel_ring_buffer *ring); |
| void intel_cleanup_ring_buffer(struct drm_device *dev, |
| struct intel_ring_buffer *ring); |
| int intel_wait_ring_buffer(struct drm_device *dev, |
| struct intel_ring_buffer *ring, int n); |
| int intel_wrap_ring_buffer(struct drm_device *dev, |
| struct intel_ring_buffer *ring); |
| void intel_ring_begin(struct drm_device *dev, |
| struct intel_ring_buffer *ring, int n); |
| |
| static inline void intel_ring_emit(struct drm_device *dev, |
| struct intel_ring_buffer *ring, |
| unsigned int data) |
| { |
| unsigned int *virt = ring->virtual_start + ring->tail; |
| *virt = data; |
| ring->tail += 4; |
| } |
| |
| void intel_fill_struct(struct drm_device *dev, |
| struct intel_ring_buffer *ring, |
| void *data, |
| unsigned int len); |
| void intel_ring_advance(struct drm_device *dev, |
| struct intel_ring_buffer *ring); |
| |
| u32 intel_ring_get_seqno(struct drm_device *dev, |
| struct intel_ring_buffer *ring); |
| |
| extern struct intel_ring_buffer render_ring; |
| extern struct intel_ring_buffer bsd_ring; |
| |
| #endif /* _INTEL_RINGBUFFER_H_ */ |