Subversion Repositories Kolibri OS

Rev

Rev 6084 | Go to most recent revision | Details | Last modification | View Log | RSS feed

Rev Author Line No. Line
5354 serge 1 
/*
2 
 * Copyright © 2014 Intel Corporation
3 
 *
4 
 * Permission is hereby granted, free of charge, to any person obtaining a
5 
 * copy of this software and associated documentation files (the "Software"),
6 
 * to deal in the Software without restriction, including without limitation
7 
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 
 * and/or sell copies of the Software, and to permit persons to whom the
9 
 * Software is furnished to do so, subject to the following conditions:
10 
 *
11 
 * The above copyright notice and this permission notice (including the next
12 
 * paragraph) shall be included in all copies or substantial portions of the
13 
 * Software.
14 
 *
15 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
21 
 * DEALINGS IN THE SOFTWARE.
22 
 */
23 
 
24 
#ifndef _INTEL_LRC_H_
25 
#define _INTEL_LRC_H_
26 
 
27 
#define GEN8_LR_CONTEXT_ALIGN 4096
28 
 
29 
/* Execlists regs */
30 
#define RING_ELSP(ring)			((ring)->mmio_base+0x230)
31 
#define RING_EXECLIST_STATUS(ring)	((ring)->mmio_base+0x234)
32 
#define RING_CONTEXT_CONTROL(ring)	((ring)->mmio_base+0x244)
33 
#define RING_CONTEXT_STATUS_BUF(ring)	((ring)->mmio_base+0x370)
34 
#define RING_CONTEXT_STATUS_PTR(ring)	((ring)->mmio_base+0x3a0)
35 
 
36 
/* Logical Rings */
37 
void intel_logical_ring_stop(struct intel_engine_cs *ring);
38 
void intel_logical_ring_cleanup(struct intel_engine_cs *ring);
39 
int intel_logical_rings_init(struct drm_device *dev);
40 
 
41 
int logical_ring_flush_all_caches(struct intel_ringbuffer *ringbuf);
42 
void intel_logical_ring_advance_and_submit(struct intel_ringbuffer *ringbuf);
43 
/**
44 
 * intel_logical_ring_advance() - advance the ringbuffer tail
45 
 * @ringbuf: Ringbuffer to advance.
46 
 *
47 
 * The tail is only updated in our logical ringbuffer struct.
48 
 */
49 
static inline void intel_logical_ring_advance(struct intel_ringbuffer *ringbuf)
50 
{
51 
	ringbuf->tail &= ringbuf->size - 1;
52 
}
53 
/**
54 
 * intel_logical_ring_emit() - write a DWORD to the ringbuffer.
55 
 * @ringbuf: Ringbuffer to write to.
56 
 * @data: DWORD to write.
57 
 */
58 
static inline void intel_logical_ring_emit(struct intel_ringbuffer *ringbuf,
59 
					   u32 data)
60 
{
61 
	iowrite32(data, ringbuf->virtual_start + ringbuf->tail);
62 
	ringbuf->tail += 4;
63 
}
64 
int intel_logical_ring_begin(struct intel_ringbuffer *ringbuf, int num_dwords);
65 
 
66 
/* Logical Ring Contexts */
67 
int intel_lr_context_render_state_init(struct intel_engine_cs *ring,
68 
				       struct intel_context *ctx);
69 
void intel_lr_context_free(struct intel_context *ctx);
70 
int intel_lr_context_deferred_create(struct intel_context *ctx,
71 
				     struct intel_engine_cs *ring);
72 
void intel_lr_context_unpin(struct intel_engine_cs *ring,
73 
		struct intel_context *ctx);
74 
 
75 
/* Execlists */
76 
int intel_sanitize_enable_execlists(struct drm_device *dev, int enable_execlists);
77 
int intel_execlists_submission(struct drm_device *dev, struct drm_file *file,
78 
			       struct intel_engine_cs *ring,
79 
			       struct intel_context *ctx,
80 
			       struct drm_i915_gem_execbuffer2 *args,
81 
			       struct list_head *vmas,
82 
			       struct drm_i915_gem_object *batch_obj,
83 
			       u64 exec_start, u32 flags);
84 
u32 intel_execlists_ctx_id(struct drm_i915_gem_object *ctx_obj);
85 
 
86 
/**
87 
 * struct intel_ctx_submit_request - queued context submission request
88 
 * @ctx: Context to submit to the ELSP.
89 
 * @ring: Engine to submit it to.
90 
 * @tail: how far in the context's ringbuffer this request goes to.
91 
 * @execlist_link: link in the submission queue.
92 
 * @work: workqueue for processing this request in a bottom half.
93 
 * @elsp_submitted: no. of times this request has been sent to the ELSP.
94 
 *
95 
 * The ELSP only accepts two elements at a time, so we queue context/tail
96 
 * pairs on a given queue (ring->execlist_queue) until the hardware is
97 
 * available. The queue serves a double purpose: we also use it to keep track
98 
 * of the up to 2 contexts currently in the hardware (usually one in execution
99 
 * and the other queued up by the GPU): We only remove elements from the head
100 
 * of the queue when the hardware informs us that an element has been
101 
 * completed.
102 
 *
103 
 * All accesses to the queue are mediated by a spinlock (ring->execlist_lock).
104 
 */
105 
struct intel_ctx_submit_request {
106 
	struct intel_context *ctx;
107 
	struct intel_engine_cs *ring;
108 
	u32 tail;
109 
 
110 
	struct list_head execlist_link;
111 
 
112 
	int elsp_submitted;
113 
};
114 
 
115 
void intel_execlists_handle_ctx_events(struct intel_engine_cs *ring);
116 
void intel_execlists_retire_requests(struct intel_engine_cs *ring);
117 
 
118 
#endif /* _INTEL_LRC_H_ */