src/gallium/drivers/panfrost/pan_job.c

   1 /*
   2  * Copyright (C) 2019 Alyssa Rosenzweig
   3  * Copyright (C) 2014-2017 Broadcom
   4  *
   5  * Permission is hereby granted, free of charge, to any person obtaining a
   6  * copy of this software and associated documentation files (the "Software"),
   7  * to deal in the Software without restriction, including without limitation
   8  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   9  * and/or sell copies of the Software, and to permit persons to whom the
  10  * Software is furnished to do so, subject to the following conditions:
  11  *
  12  * The above copyright notice and this permission notice (including the next
  13  * paragraph) shall be included in all copies or substantial portions of the
  14  * Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  20  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  21  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
  22  * SOFTWARE.
  23  *
  24  */
  25
  26 #include "pan_context.h"
  27 #include "util/hash_table.h"
  28 #include "util/ralloc.h"
  29
  30 struct panfrost_job *
  31 panfrost_create_job(struct panfrost_context *ctx)
  32 {
  33         struct panfrost_job *job = rzalloc(NULL, struct panfrost_job);
  34
  35         job->ctx = ctx;
  36
  37         job->bos = _mesa_set_create(job,
  38                                     _mesa_hash_pointer,
  39                                     _mesa_key_pointer_equal);
  40
  41         return job;
  42 }
  43
  44 void
  45 panfrost_free_job(struct panfrost_context *ctx, struct panfrost_job *job)
  46 {
  47         if (!job)
  48                 return;
  49
  50         set_foreach(job->bos, entry) {
  51                 struct panfrost_bo *bo = (struct panfrost_bo *)entry->key;
  52                 panfrost_bo_unreference(ctx->base.screen, bo);
  53         }
  54
  55         _mesa_hash_table_remove_key(ctx->jobs, &job->key);
  56
  57         if (ctx->job == job)
  58                 ctx->job = NULL;
  59
  60         ralloc_free(job);
  61 }
  62
  63 struct panfrost_job *
  64 panfrost_get_job(struct panfrost_context *ctx,
  65                 struct pipe_surface **cbufs, struct pipe_surface *zsbuf)
  66 {
  67         /* Lookup the job first */
  68
  69         struct panfrost_job_key key = {
  70                 .cbufs = {
  71                         cbufs[0],
  72                         cbufs[1],
  73                         cbufs[2],
  74                         cbufs[3],
  75                 },
  76                 .zsbuf = zsbuf
  77         };
  78
  79         struct hash_entry *entry = _mesa_hash_table_search(ctx->jobs, &key);
  80
  81         if (entry)
  82                 return entry->data;
  83
  84         /* Otherwise, let's create a job */
  85
  86         struct panfrost_job *job = panfrost_create_job(ctx);
  87
  88         /* Save the created job */
  89
  90         memcpy(&job->key, &key, sizeof(key));
  91         _mesa_hash_table_insert(ctx->jobs, &job->key, job);
  92
  93         return job;
  94 }
  95
  96 /* Get the job corresponding to the FBO we're currently rendering into */
  97
  98 struct panfrost_job *
  99 panfrost_get_job_for_fbo(struct panfrost_context *ctx)
 100 {
 101         /* If we already began rendering, use that */
 102
 103         if (ctx->job)
 104                 return ctx->job;
 105
 106         /* If not, look up the job */
 107
 108         struct pipe_surface **cbufs = ctx->pipe_framebuffer.cbufs;
 109         struct pipe_surface *zsbuf = ctx->pipe_framebuffer.zsbuf;
 110         struct panfrost_job *job = panfrost_get_job(ctx, cbufs, zsbuf);
 111
 112         return job;
 113 }
 114
 115 void
 116 panfrost_job_add_bo(struct panfrost_job *job, struct panfrost_bo *bo)
 117 {
 118         if (!bo)
 119                 return;
 120
 121         if (_mesa_set_search(job->bos, bo))
 122                 return;
 123
 124         panfrost_bo_reference(bo);
 125         _mesa_set_add(job->bos, bo);
 126 }
 127
 128 void
 129 panfrost_flush_jobs_writing_resource(struct panfrost_context *panfrost,
 130                                 struct pipe_resource *prsc)
 131 {
 132 #if 0
 133         struct hash_entry *entry = _mesa_hash_table_search(panfrost->write_jobs,
 134                                                            prsc);
 135         if (entry) {
 136                 struct panfrost_job *job = entry->data;
 137                 panfrost_job_submit(panfrost, job);
 138         }
 139 #endif
 140         /* TODO stub */
 141 }
 142
 143 void
 144 panfrost_flush_jobs_reading_resource(struct panfrost_context *panfrost,
 145                                 struct pipe_resource *prsc)
 146 {
 147         struct panfrost_resource *rsc = pan_resource(prsc);
 148
 149         panfrost_flush_jobs_writing_resource(panfrost, prsc);
 150
 151         hash_table_foreach(panfrost->jobs, entry) {
 152                 struct panfrost_job *job = entry->data;
 153
 154                 if (_mesa_set_search(job->bos, rsc->bo)) {
 155                         printf("TODO: submit job for flush\n");
 156                         //panfrost_job_submit(panfrost, job);
 157                         continue;
 158                 }
 159         }
 160 }
 161
 162 static bool
 163 panfrost_job_compare(const void *a, const void *b)
 164 {
 165         return memcmp(a, b, sizeof(struct panfrost_job_key)) == 0;
 166 }
 167
 168 static uint32_t
 169 panfrost_job_hash(const void *key)
 170 {
 171         return _mesa_hash_data(key, sizeof(struct panfrost_job_key));
 172 }
 173
 174 void
 175 panfrost_job_init(struct panfrost_context *ctx)
 176 {
 177         /* TODO: Don't leak */
 178         ctx->jobs = _mesa_hash_table_create(NULL,
 179                                             panfrost_job_hash,
 180                                             panfrost_job_compare);
 181
 182         ctx->write_jobs = _mesa_hash_table_create(NULL,
 183                                             _mesa_hash_pointer,
 184                                             _mesa_key_pointer_equal);
 185
 186 }