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25 * Gallium query object support.
27 * The HW has native support for occlusion queries, with the query result
28 * being loaded and stored by the TLB unit. From a SW perspective, we have to
29 * be careful to make sure that the jobs that need to be tracking queries are
30 * bracketed by the start and end of counting, even across FBO transitions.
32 * For the transform feedback PRIMITIVES_GENERATED/WRITTEN queries, we have to
33 * do the calculations in software at draw time.
36 #include "v3d_context.h"
37 #include "broadcom/cle/v3d_packet_v33_pack.h"
41 enum pipe_query_type type
;
47 static struct pipe_query
*
48 v3d_create_query(struct pipe_context
*pctx
, unsigned query_type
, unsigned index
)
50 struct v3d_query
*q
= calloc(1, sizeof(*q
));
54 /* Note that struct pipe_query isn't actually defined anywhere. */
55 return (struct pipe_query
*)q
;
59 v3d_destroy_query(struct pipe_context
*pctx
, struct pipe_query
*query
)
61 struct v3d_query
*q
= (struct v3d_query
*)query
;
63 v3d_bo_unreference(&q
->bo
);
68 v3d_begin_query(struct pipe_context
*pctx
, struct pipe_query
*query
)
70 struct v3d_context
*v3d
= v3d_context(pctx
);
71 struct v3d_query
*q
= (struct v3d_query
*)query
;
74 case PIPE_QUERY_PRIMITIVES_GENERATED
:
75 /* If we are using PRIMITIVE_COUNTS_FEEDBACK to retrieve
76 * primitive counts from the GPU (which we need when a GS
77 * is present), then we need to update our counters now
78 * to discard any primitives generated before this.
81 v3d_update_primitive_counters(v3d
);
82 q
->start
= v3d
->prims_generated
;
84 case PIPE_QUERY_PRIMITIVES_EMITTED
:
85 /* If we are inside transform feedback we need to update the
86 * primitive counts to skip primtives recorded before this.
88 if (v3d
->streamout
.num_targets
> 0)
89 v3d_update_primitive_counters(v3d
);
90 q
->start
= v3d
->tf_prims_generated
;
92 case PIPE_QUERY_OCCLUSION_COUNTER
:
93 case PIPE_QUERY_OCCLUSION_PREDICATE
:
94 case PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE
:
95 q
->bo
= v3d_bo_alloc(v3d
->screen
, 4096, "query");
96 uint32_t *map
= v3d_bo_map(q
->bo
);
99 v3d
->current_oq
= q
->bo
;
100 v3d
->dirty
|= VC5_DIRTY_OQ
;
103 unreachable("unsupported query type");
110 v3d_end_query(struct pipe_context
*pctx
, struct pipe_query
*query
)
112 struct v3d_context
*v3d
= v3d_context(pctx
);
113 struct v3d_query
*q
= (struct v3d_query
*)query
;
116 case PIPE_QUERY_PRIMITIVES_GENERATED
:
117 /* If we are using PRIMITIVE_COUNTS_FEEDBACK to retrieve
118 * primitive counts from the GPU (which we need when a GS
119 * is present), then we need to update our counters now.
122 v3d_update_primitive_counters(v3d
);
123 q
->end
= v3d
->prims_generated
;
125 case PIPE_QUERY_PRIMITIVES_EMITTED
:
126 /* If transform feedback has ended, then we have already
127 * updated the primitive counts at glEndTransformFeedback()
128 * time. Otherwise, we have to do it now.
130 if (v3d
->streamout
.num_targets
> 0)
131 v3d_update_primitive_counters(v3d
);
132 q
->end
= v3d
->tf_prims_generated
;
134 case PIPE_QUERY_OCCLUSION_COUNTER
:
135 case PIPE_QUERY_OCCLUSION_PREDICATE
:
136 case PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE
:
137 v3d
->current_oq
= NULL
;
138 v3d
->dirty
|= VC5_DIRTY_OQ
;
141 unreachable("unsupported query type");
148 v3d_get_query_result(struct pipe_context
*pctx
, struct pipe_query
*query
,
149 bool wait
, union pipe_query_result
*vresult
)
151 struct v3d_context
*v3d
= v3d_context(pctx
);
152 struct v3d_query
*q
= (struct v3d_query
*)query
;
156 v3d_flush_jobs_using_bo(v3d
, q
->bo
);
159 if (!v3d_bo_wait(q
->bo
, ~0ull, "query"))
162 if (!v3d_bo_wait(q
->bo
, 0, "query"))
166 /* XXX: Sum up per-core values. */
167 uint32_t *map
= v3d_bo_map(q
->bo
);
170 v3d_bo_unreference(&q
->bo
);
174 case PIPE_QUERY_OCCLUSION_COUNTER
:
175 vresult
->u64
= result
;
177 case PIPE_QUERY_OCCLUSION_PREDICATE
:
178 case PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE
:
179 vresult
->b
= result
!= 0;
181 case PIPE_QUERY_PRIMITIVES_GENERATED
:
182 case PIPE_QUERY_PRIMITIVES_EMITTED
:
183 vresult
->u64
= q
->end
- q
->start
;
186 unreachable("unsupported query type");
193 v3d_set_active_query_state(struct pipe_context
*pctx
, bool enable
)
195 struct v3d_context
*v3d
= v3d_context(pctx
);
197 v3d
->active_queries
= enable
;
198 v3d
->dirty
|= VC5_DIRTY_OQ
;
199 v3d
->dirty
|= VC5_DIRTY_STREAMOUT
;
203 v3d_query_init(struct pipe_context
*pctx
)
205 pctx
->create_query
= v3d_create_query
;
206 pctx
->destroy_query
= v3d_destroy_query
;
207 pctx
->begin_query
= v3d_begin_query
;
208 pctx
->end_query
= v3d_end_query
;
209 pctx
->get_query_result
= v3d_get_query_result
;
210 pctx
->set_active_query_state
= v3d_set_active_query_state
;