181 lines
5.6 KiB
C
181 lines
5.6 KiB
C
/*
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* Copyright © 2014 Broadcom
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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/**
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* Gallium query object support.
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*
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* The HW has native support for occlusion queries, with the query result
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* being loaded and stored by the TLB unit. From a SW perspective, we have to
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* be careful to make sure that the jobs that need to be tracking queries are
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* bracketed by the start and end of counting, even across FBO transitions.
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*
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* For the transform feedback PRIMITIVES_GENERATED/WRITTEN queries, we have to
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* do the calculations in software at draw time.
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*/
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#include "v3d_context.h"
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#include "broadcom/cle/v3d_packet_v33_pack.h"
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struct v3d_query
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{
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enum pipe_query_type type;
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struct v3d_bo *bo;
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uint32_t start, end;
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};
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static struct pipe_query *
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v3d_create_query(struct pipe_context *pctx, unsigned query_type, unsigned index)
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{
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struct v3d_query *q = calloc(1, sizeof(*q));
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q->type = query_type;
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/* Note that struct pipe_query isn't actually defined anywhere. */
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return (struct pipe_query *)q;
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}
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static void
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v3d_destroy_query(struct pipe_context *pctx, struct pipe_query *query)
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{
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struct v3d_query *q = (struct v3d_query *)query;
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v3d_bo_unreference(&q->bo);
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free(q);
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}
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static boolean
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v3d_begin_query(struct pipe_context *pctx, struct pipe_query *query)
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{
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struct v3d_context *v3d = v3d_context(pctx);
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struct v3d_query *q = (struct v3d_query *)query;
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switch (q->type) {
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case PIPE_QUERY_PRIMITIVES_GENERATED:
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q->start = v3d->prims_generated;
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break;
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case PIPE_QUERY_PRIMITIVES_EMITTED:
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q->start = v3d->tf_prims_generated;
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break;
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default:
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q->bo = v3d_bo_alloc(v3d->screen, 4096, "query");
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uint32_t *map = v3d_bo_map(q->bo);
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*map = 0;
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v3d->current_oq = q->bo;
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v3d->dirty |= VC5_DIRTY_OQ;
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break;
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}
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return true;
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}
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static bool
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v3d_end_query(struct pipe_context *pctx, struct pipe_query *query)
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{
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struct v3d_context *v3d = v3d_context(pctx);
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struct v3d_query *q = (struct v3d_query *)query;
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switch (q->type) {
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case PIPE_QUERY_PRIMITIVES_GENERATED:
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q->end = v3d->prims_generated;
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break;
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case PIPE_QUERY_PRIMITIVES_EMITTED:
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q->end = v3d->tf_prims_generated;
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break;
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default:
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v3d->current_oq = NULL;
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v3d->dirty |= VC5_DIRTY_OQ;
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break;
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}
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return true;
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}
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static boolean
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v3d_get_query_result(struct pipe_context *pctx, struct pipe_query *query,
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boolean wait, union pipe_query_result *vresult)
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{
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struct v3d_query *q = (struct v3d_query *)query;
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uint32_t result = 0;
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if (q->bo) {
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/* XXX: Only flush the jobs using this BO. */
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v3d_flush(pctx);
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if (wait) {
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if (!v3d_bo_wait(q->bo, 0, "query"))
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return false;
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} else {
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if (!v3d_bo_wait(q->bo, ~0ull, "query"))
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return false;
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}
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/* XXX: Sum up per-core values. */
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uint32_t *map = v3d_bo_map(q->bo);
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result = *map;
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v3d_bo_unreference(&q->bo);
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}
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switch (q->type) {
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case PIPE_QUERY_OCCLUSION_COUNTER:
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vresult->u64 = result;
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break;
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case PIPE_QUERY_OCCLUSION_PREDICATE:
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case PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE:
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vresult->b = result != 0;
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break;
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case PIPE_QUERY_PRIMITIVES_GENERATED:
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case PIPE_QUERY_PRIMITIVES_EMITTED:
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vresult->u64 = q->end - q->start;
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break;
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default:
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unreachable("unsupported query type");
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}
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return true;
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}
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static void
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v3d_set_active_query_state(struct pipe_context *pctx, boolean enable)
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{
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struct v3d_context *v3d = v3d_context(pctx);
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v3d->active_queries = enable;
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v3d->dirty |= VC5_DIRTY_OQ;
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v3d->dirty |= VC5_DIRTY_STREAMOUT;
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}
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void
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v3d_query_init(struct pipe_context *pctx)
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{
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pctx->create_query = v3d_create_query;
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pctx->destroy_query = v3d_destroy_query;
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pctx->begin_query = v3d_begin_query;
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pctx->end_query = v3d_end_query;
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pctx->get_query_result = v3d_get_query_result;
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pctx->set_active_query_state = v3d_set_active_query_state;
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}
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