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         /* TODO: Don't leak */
  34         struct panfrost_job *job = rzalloc(NULL, struct panfrost_job);
  35
  36         job->ctx = ctx;
  37
  38         job->bos = _mesa_set_create(job,
  39                                     _mesa_hash_pointer,
  40                                     _mesa_key_pointer_equal);
  41
  42         return job;
  43 }
  44
  45 void
  46 panfrost_free_job(struct panfrost_context *ctx, struct panfrost_job *job)
  47 {
  48         if (!job)
  49                 return;
  50
  51         set_foreach(job->bos, entry) {
  52                 struct panfrost_bo *bo = (struct panfrost_bo *)entry->key;
  53                 panfrost_bo_unreference(ctx->base.screen, bo);
  54         }
  55
  56         _mesa_hash_table_remove_key(ctx->jobs, &job->key);
  57
  58         if (ctx->job == job)
  59                 ctx->job = NULL;
  60
  61         ralloc_free(job);
  62 }
  63
  64 struct panfrost_job *
  65 panfrost_get_job(struct panfrost_context *ctx,
  66                 struct pipe_surface **cbufs, struct pipe_surface *zsbuf)
  67 {
  68         /* Lookup the job first */
  69
  70         struct panfrost_job_key key = {
  71                 .cbufs = {
  72                         cbufs[0],
  73                         cbufs[1],
  74                         cbufs[2],
  75                         cbufs[3],
  76                 },
  77                 .zsbuf = zsbuf
  78         };
  79
  80         struct hash_entry *entry = _mesa_hash_table_search(ctx->jobs, &key);
  81
  82         if (entry)
  83                 return entry->data;
  84
  85         /* Otherwise, let's create a job */
  86
  87         struct panfrost_job *job = panfrost_create_job(ctx);
  88
  89         /* Save the created job */
  90
  91         memcpy(&job->key, &key, sizeof(key));
  92         _mesa_hash_table_insert(ctx->jobs, &job->key, job);
  93
  94         return job;
  95 }
  96
  97 /* Get the job corresponding to the FBO we're currently rendering into */
  98
  99 struct panfrost_job *
 100 panfrost_get_job_for_fbo(struct panfrost_context *ctx)
 101 {
 102         /* If we already began rendering, use that */
 103
 104         if (ctx->job)
 105                 return ctx->job;
 106
 107         /* If not, look up the job */
 108
 109         struct pipe_surface **cbufs = ctx->pipe_framebuffer.cbufs;
 110         struct pipe_surface *zsbuf = ctx->pipe_framebuffer.zsbuf;
 111         struct panfrost_job *job = panfrost_get_job(ctx, cbufs, zsbuf);
 112
 113         return job;
 114 }
 115
 116 void
 117 panfrost_job_add_bo(struct panfrost_job *job, struct panfrost_bo *bo)
 118 {
 119         if (!bo)
 120                 return;
 121
 122         if (_mesa_set_search(job->bos, bo))
 123                 return;
 124
 125         panfrost_bo_reference(bo);
 126         _mesa_set_add(job->bos, bo);
 127 }
 128
 129 void
 130 panfrost_flush_jobs_writing_resource(struct panfrost_context *panfrost,
 131                                 struct pipe_resource *prsc)
 132 {
 133 #if 0
 134         struct hash_entry *entry = _mesa_hash_table_search(panfrost->write_jobs,
 135                                                            prsc);
 136         if (entry) {
 137                 struct panfrost_job *job = entry->data;
 138                 panfrost_job_submit(panfrost, job);
 139         }
 140 #endif
 141         /* TODO stub */
 142 }
 143
 144 void
 145 panfrost_flush_jobs_reading_resource(struct panfrost_context *panfrost,
 146                                 struct pipe_resource *prsc)
 147 {
 148         struct panfrost_resource *rsc = pan_resource(prsc);
 149
 150         panfrost_flush_jobs_writing_resource(panfrost, prsc);
 151
 152         hash_table_foreach(panfrost->jobs, entry) {
 153                 struct panfrost_job *job = entry->data;
 154
 155                 if (_mesa_set_search(job->bos, rsc->bo)) {
 156                         printf("TODO: submit job for flush\n");
 157                         //panfrost_job_submit(panfrost, job);
 158                         continue;
 159                 }
 160         }
 161 }
 162
 163 static bool
 164 panfrost_job_compare(const void *a, const void *b)
 165 {
 166         return memcmp(a, b, sizeof(struct panfrost_job_key)) == 0;
 167 }
 168
 169 static uint32_t
 170 panfrost_job_hash(const void *key)
 171 {
 172         return _mesa_hash_data(key, sizeof(struct panfrost_job_key));
 173 }
 174
 175 void
 176 panfrost_job_init(struct panfrost_context *ctx)
 177 {
 178         /* TODO: Don't leak */
 179         ctx->jobs = _mesa_hash_table_create(NULL,
 180                                             panfrost_job_hash,
 181                                             panfrost_job_compare);
 182
 183         ctx->write_jobs = _mesa_hash_table_create(NULL,
 184                                             _mesa_hash_pointer,
 185                                             _mesa_key_pointer_equal);
 186
 187 }