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	 * seen value is good enough. Note that the seqno will always be

	 * seen value is good enough. Note that the seqno will always be

	 * monotonic, even if not coherent.

	 * monotonic, even if not coherent.

	 */

	 */

	u32		(*get_seqno)(struct intel_ring_buffer *ring,

	u32		(*get_seqno)(struct intel_ring_buffer *ring,

				     bool lazy_coherency);

				     bool lazy_coherency);

	int		(*dispatch_execbuffer)(struct intel_ring_buffer *ring,

	int		(*dispatch_execbuffer)(struct intel_ring_buffer *ring,

					       u32 offset, u32 length,

					       u32 offset, u32 length,

					       unsigned flags);

					       unsigned flags);

#define I915_DISPATCH_SECURE 0x1

#define I915_DISPATCH_SECURE 0x1

#define I915_DISPATCH_PINNED 0x2

#define I915_DISPATCH_PINNED 0x2

	/* Ensure that the compiler doesn't optimize away the load. */

	/* Ensure that the compiler doesn't optimize away the load. */

	barrier();

	barrier();

	return ring->status_page.page_addr[reg];

	return ring->status_page.page_addr[reg];

}

}

/**

/**

 * Reads a dword out of the status page, which is written to from the command

 * Reads a dword out of the status page, which is written to from the command

 * queue by automatic updates, MI_REPORT_HEAD, MI_STORE_DATA_INDEX, or

 * queue by automatic updates, MI_REPORT_HEAD, MI_STORE_DATA_INDEX, or

 * MI_STORE_DATA_IMM.

 * MI_STORE_DATA_IMM.

	iowrite32(data, ring->virtual_start + ring->tail);

	iowrite32(data, ring->virtual_start + ring->tail);

	ring->tail += 4;

	ring->tail += 4;

}

}

void intel_ring_advance(struct intel_ring_buffer *ring);

void intel_ring_advance(struct intel_ring_buffer *ring);

int __must_check intel_ring_idle(struct intel_ring_buffer *ring);

int __must_check intel_ring_idle(struct intel_ring_buffer *ring);

int intel_ring_flush_all_caches(struct intel_ring_buffer *ring);

int intel_ring_flush_all_caches(struct intel_ring_buffer *ring);

int intel_ring_invalidate_all_caches(struct intel_ring_buffer *ring);

int intel_ring_invalidate_all_caches(struct intel_ring_buffer *ring);

int intel_init_render_ring_buffer(struct drm_device *dev);

int intel_init_render_ring_buffer(struct drm_device *dev);