src/gallium/drivers/iris/iris_context.c

   1 /*
   2  * Copyright © 2017 Intel Corporation
   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 #include <stdio.h>
  24 #include <time.h>
  25 #include "pipe/p_defines.h"
  26 #include "pipe/p_state.h"
  27 #include "util/ralloc.h"
  28 #include "util/u_inlines.h"
  29 #include "util/u_format.h"
  30 #include "util/u_upload_mgr.h"
  31 #include "i915_drm.h"
  32 #include "iris_context.h"
  33 #include "iris_resource.h"
  34 #include "iris_screen.h"
  35
  36 static void
  37 iris_flush(struct pipe_context *ctx,
  38            struct pipe_fence_handle **fence,
  39            unsigned flags)
  40 {
  41    struct iris_context *ice = (struct iris_context *)ctx;
  42
  43    iris_batch_flush(&ice->render_batch);
  44
  45    if (fence)
  46       *fence = NULL;
  47 }
  48
  49 /**
  50  * For debugging purposes, this returns a time in seconds.
  51  */
  52 double
  53 get_time(void)
  54 {
  55    struct timespec tp;
  56
  57    clock_gettime(CLOCK_MONOTONIC, &tp);
  58
  59    return tp.tv_sec + tp.tv_nsec / 1000000000.0;
  60 }
  61
  62 static void
  63 iris_set_debug_callback(struct pipe_context *ctx,
  64                         const struct pipe_debug_callback *cb)
  65 {
  66    struct iris_context *ice = (struct iris_context *)ctx;
  67
  68    if (cb)
  69       ice->dbg = *cb;
  70    else
  71       memset(&ice->dbg, 0, sizeof(ice->dbg));
  72 }
  73
  74 static void
  75 iris_destroy_context(struct pipe_context *ctx)
  76 {
  77    struct iris_context *ice = (struct iris_context *)ctx;
  78
  79    if (ctx->stream_uploader)
  80       u_upload_destroy(ctx->stream_uploader);
  81
  82    iris_batch_free(&ice->render_batch);
  83
  84    ralloc_free(ice);
  85 }
  86
  87 #define genX_call(devinfo, func, ...)             \
  88    switch (devinfo->gen) {                        \
  89    case 10:                                       \
  90       gen10_##func(__VA_ARGS__);                  \
  91       break;                                      \
  92    case 9:                                        \
  93       gen9_##func(__VA_ARGS__);                   \
  94       break;                                      \
  95    default:                                       \
  96       unreachable("Unknown hardware generation"); \
  97    }
  98
  99 struct pipe_context *
 100 iris_create_context(struct pipe_screen *pscreen, void *priv, unsigned flags)
 101 {
 102    struct iris_screen *screen = (struct iris_screen*)pscreen;
 103    const struct gen_device_info *devinfo = &screen->devinfo;
 104    struct iris_context *ice = rzalloc(NULL, struct iris_context);
 105
 106    if (!ice)
 107       return NULL;
 108
 109    struct pipe_context *ctx = &ice->ctx;
 110
 111    ctx->screen = pscreen;
 112    ctx->priv = priv;
 113
 114    ctx->stream_uploader = u_upload_create_default(ctx);
 115    if (!ctx->stream_uploader) {
 116       free(ctx);
 117       return NULL;
 118    }
 119    ctx->const_uploader = ctx->stream_uploader;
 120
 121    ctx->destroy = iris_destroy_context;
 122    ctx->flush = iris_flush;
 123    ctx->set_debug_callback = iris_set_debug_callback;
 124
 125    iris_init_blit_functions(ctx);
 126    iris_init_clear_functions(ctx);
 127    iris_init_program_functions(ctx);
 128    iris_init_resource_functions(ctx);
 129    iris_init_query_functions(ctx);
 130
 131    iris_init_program_cache(ice);
 132
 133    genX_call(devinfo, init_state, ice);
 134    ice->state.init_render_context(screen, &ice->render_batch, &ice->dbg);
 135
 136    return ctx;
 137 }