src/gallium/drivers/virgl/virgl_query.c

   1 /*
   2  * Copyright 2014, 2015 Red Hat.
   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  * on the rights to use, copy, modify, merge, publish, distribute, sub
   8  * license, and/or sell copies of the Software, and to permit persons to whom
   9  * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
  18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
  19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
  21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  */
  23
  24 #include "util/u_memory.h"
  25 #include "util/u_inlines.h"
  26 #include "virgl_context.h"
  27 #include "virgl_encode.h"
  28 #include "virgl_protocol.h"
  29 #include "virgl_resource.h"
  30
  31 struct virgl_query {
  32    uint32_t handle;
  33    struct virgl_resource *buf;
  34
  35    unsigned index;
  36    unsigned type;
  37    unsigned result_size;
  38    unsigned result_gotten_sent;
  39 };
  40 #define VIRGL_QUERY_OCCLUSION_COUNTER     0
  41 #define VIRGL_QUERY_OCCLUSION_PREDICATE   1
  42 #define VIRGL_QUERY_TIMESTAMP             2
  43 #define VIRGL_QUERY_TIMESTAMP_DISJOINT    3
  44 #define VIRGL_QUERY_TIME_ELAPSED          4
  45 #define VIRGL_QUERY_PRIMITIVES_GENERATED  5
  46 #define VIRGL_QUERY_PRIMITIVES_EMITTED    6
  47 #define VIRGL_QUERY_SO_STATISTICS         7
  48 #define VIRGL_QUERY_SO_OVERFLOW_PREDICATE 8
  49 #define VIRGL_QUERY_GPU_FINISHED          9
  50 #define VIRGL_QUERY_PIPELINE_STATISTICS  10
  51
  52 static const int pquery_map[] =
  53 {
  54    VIRGL_QUERY_OCCLUSION_COUNTER,
  55    VIRGL_QUERY_OCCLUSION_PREDICATE,
  56    -1,
  57    VIRGL_QUERY_TIMESTAMP,
  58    VIRGL_QUERY_TIMESTAMP_DISJOINT,
  59    VIRGL_QUERY_TIME_ELAPSED,
  60    VIRGL_QUERY_PRIMITIVES_GENERATED,
  61    VIRGL_QUERY_PRIMITIVES_EMITTED,
  62    VIRGL_QUERY_SO_STATISTICS,
  63    VIRGL_QUERY_SO_OVERFLOW_PREDICATE,
  64    -1,
  65    VIRGL_QUERY_GPU_FINISHED,
  66    VIRGL_QUERY_PIPELINE_STATISTICS,
  67 };
  68
  69 static int pipe_to_virgl_query(enum pipe_query_type ptype)
  70 {
  71    return pquery_map[ptype];
  72 }
  73
  74 static inline struct virgl_query *virgl_query(struct pipe_query *q)
  75 {
  76    return (struct virgl_query *)q;
  77 }
  78
  79 static void virgl_render_condition(struct pipe_context *ctx,
  80                                   struct pipe_query *q,
  81                                   boolean condition,
  82                                   enum pipe_render_cond_flag mode)
  83 {
  84    struct virgl_context *vctx = virgl_context(ctx);
  85    struct virgl_query *query = virgl_query(q);
  86    uint32_t handle = 0;
  87    if (q)
  88       handle = query->handle;
  89    virgl_encoder_render_condition(vctx, handle, condition, mode);
  90 }
  91
  92 static struct pipe_query *virgl_create_query(struct pipe_context *ctx,
  93                                             unsigned query_type, unsigned index)
  94 {
  95    struct virgl_context *vctx = virgl_context(ctx);
  96    struct virgl_query *query;
  97    uint32_t handle;
  98
  99    query = CALLOC_STRUCT(virgl_query);
 100    if (!query)
 101       return NULL;
 102
 103    query->buf = (struct virgl_resource *)pipe_buffer_create(ctx->screen, PIPE_BIND_CUSTOM,
 104                                                            PIPE_USAGE_STAGING, sizeof(struct virgl_host_query_state));
 105    if (!query->buf) {
 106       FREE(query);
 107       return NULL;
 108    }
 109
 110    handle = virgl_object_assign_handle();
 111    query->type = pipe_to_virgl_query(query_type);
 112    query->index = index;
 113    query->handle = handle;
 114    query->buf->clean = FALSE;
 115    virgl_encoder_create_query(vctx, handle, query->type, index, query->buf, 0);
 116
 117    return (struct pipe_query *)query;
 118 }
 119
 120 static void virgl_destroy_query(struct pipe_context *ctx,
 121                         struct pipe_query *q)
 122 {
 123    struct virgl_context *vctx = virgl_context(ctx);
 124    struct virgl_query *query = virgl_query(q);
 125
 126    virgl_encode_delete_object(vctx, query->handle, VIRGL_OBJECT_QUERY);
 127
 128    pipe_resource_reference((struct pipe_resource **)&query->buf, NULL);
 129    FREE(query);
 130 }
 131
 132 static boolean virgl_begin_query(struct pipe_context *ctx,
 133                              struct pipe_query *q)
 134 {
 135    struct virgl_context *vctx = virgl_context(ctx);
 136    struct virgl_query *query = virgl_query(q);
 137
 138    query->buf->clean = FALSE;
 139    virgl_encoder_begin_query(vctx, query->handle);
 140    return true;
 141 }
 142
 143 static bool virgl_end_query(struct pipe_context *ctx,
 144                            struct pipe_query *q)
 145 {
 146    struct virgl_context *vctx = virgl_context(ctx);
 147    struct virgl_query *query = virgl_query(q);
 148    struct pipe_box box;
 149
 150    uint32_t qs = VIRGL_QUERY_STATE_WAIT_HOST;
 151    u_box_1d(0, 4, &box);
 152    virgl_transfer_inline_write(ctx, &query->buf->u.b, 0, PIPE_TRANSFER_WRITE,
 153                               &box, &qs, 0, 0);
 154
 155
 156    virgl_encoder_end_query(vctx, query->handle);
 157    return true;
 158 }
 159
 160 static boolean virgl_get_query_result(struct pipe_context *ctx,
 161                                      struct pipe_query *q,
 162                                      boolean wait,
 163                                      union pipe_query_result *result)
 164 {
 165    struct virgl_context *vctx = virgl_context(ctx);
 166    struct virgl_query *query = virgl_query(q);
 167    struct pipe_transfer *transfer;
 168    struct virgl_host_query_state *host_state;
 169
 170    /* ask host for query result */
 171    if (!query->result_gotten_sent) {
 172       query->result_gotten_sent = 1;
 173       virgl_encoder_get_query_result(vctx, query->handle, 0);
 174       ctx->flush(ctx, NULL, 0);
 175    }
 176
 177    /* do we  have to flush? */
 178    /* now we can do the transfer to get the result back? */
 179  remap:
 180    host_state = pipe_buffer_map(ctx, &query->buf->u.b,
 181                                PIPE_TRANSFER_READ, &transfer);
 182
 183    if (host_state->query_state != VIRGL_QUERY_STATE_DONE) {
 184       pipe_buffer_unmap(ctx, transfer);
 185       if (wait)
 186          goto remap;
 187       else
 188          return FALSE;
 189    }
 190
 191    if (query->type == PIPE_QUERY_TIMESTAMP || query->type == PIPE_QUERY_TIME_ELAPSED)
 192       result->u64 = host_state->result;
 193    else
 194       result->u64 = (uint32_t)host_state->result;
 195
 196    pipe_buffer_unmap(ctx, transfer);
 197    query->result_gotten_sent = 0;
 198    return TRUE;
 199 }
 200
 201 static void
 202 virgl_set_active_query_state(struct pipe_context *pipe, boolean enable)
 203 {
 204 }
 205
 206 void virgl_init_query_functions(struct virgl_context *vctx)
 207 {
 208    vctx->base.render_condition = virgl_render_condition;
 209    vctx->base.create_query = virgl_create_query;
 210    vctx->base.destroy_query = virgl_destroy_query;
 211    vctx->base.begin_query = virgl_begin_query;
 212    vctx->base.end_query = virgl_end_query;
 213    vctx->base.get_query_result = virgl_get_query_result;
 214    vctx->base.set_active_query_state = virgl_set_active_query_state;
 215 }