src/gallium/drivers/ilo/ilo_context.c

   1 /*
   2  * Mesa 3-D graphics library
   3  *
   4  * Copyright (C) 2012-2013 LunarG, Inc.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included
  14  * in all copies or substantial portions of the 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
  21  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
  22  * DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors:
  25  *    Chia-I Wu <olv@lunarg.com>
  26  */
  27
  28 #include "intel_chipset.h"
  29
  30 #include "ilo_3d.h"
  31 #include "ilo_blit.h"
  32 #include "ilo_cp.h"
  33 #include "ilo_gpgpu.h"
  34 #include "ilo_query.h"
  35 #include "ilo_resource.h"
  36 #include "ilo_screen.h"
  37 #include "ilo_state.h"
  38 #include "ilo_video.h"
  39 #include "ilo_context.h"
  40
  41 static void
  42 ilo_context_new_cp_batch(struct ilo_cp *cp, void *data)
  43 {
  44 }
  45
  46 static void
  47 ilo_context_pre_cp_flush(struct ilo_cp *cp, void *data)
  48 {
  49 }
  50
  51 static void
  52 ilo_context_post_cp_flush(struct ilo_cp *cp, void *data)
  53 {
  54    struct ilo_context *ilo = ilo_context(data);
  55
  56    if (ilo->last_cp_bo)
  57       ilo->last_cp_bo->unreference(ilo->last_cp_bo);
  58
  59    /* remember the just flushed bo, on which fences could wait */
  60    ilo->last_cp_bo = cp->bo;
  61    ilo->last_cp_bo->reference(ilo->last_cp_bo);
  62 }
  63
  64 static void
  65 ilo_flush(struct pipe_context *pipe,
  66           struct pipe_fence_handle **f,
  67           enum pipe_flush_flags flags)
  68 {
  69    struct ilo_context *ilo = ilo_context(pipe);
  70
  71    if (f) {
  72       struct ilo_fence *fence;
  73
  74       fence = CALLOC_STRUCT(ilo_fence);
  75       if (fence) {
  76          pipe_reference_init(&fence->reference, 1);
  77
  78          /* reference the batch bo that we want to wait on */
  79          if (ilo_cp_empty(ilo->cp))
  80             fence->bo = ilo->last_cp_bo;
  81          else
  82             fence->bo = ilo->cp->bo;
  83
  84          if (fence->bo)
  85             fence->bo->reference(fence->bo);
  86       }
  87
  88       *f = (struct pipe_fence_handle *) fence;
  89    }
  90
  91    ilo_cp_flush(ilo->cp);
  92 }
  93
  94 static void
  95 ilo_context_destroy(struct pipe_context *pipe)
  96 {
  97    struct ilo_context *ilo = ilo_context(pipe);
  98
  99    if (ilo->last_cp_bo)
 100       ilo->last_cp_bo->unreference(ilo->last_cp_bo);
 101
 102    if (ilo->cp)
 103       ilo_cp_destroy(ilo->cp);
 104
 105    FREE(ilo);
 106 }
 107
 108 static struct pipe_context *
 109 ilo_context_create(struct pipe_screen *screen, void *priv)
 110 {
 111    struct ilo_screen *is = ilo_screen(screen);
 112    struct ilo_context *ilo;
 113
 114    ilo = CALLOC_STRUCT(ilo_context);
 115    if (!ilo)
 116       return NULL;
 117
 118    ilo->winsys = is->winsys;
 119    ilo->devid = is->devid;
 120    ilo->gen = is->gen;
 121
 122    if (IS_SNB_GT1(ilo->devid) ||
 123        IS_IVB_GT1(ilo->devid) ||
 124        IS_HSW_GT1(ilo->devid) ||
 125        IS_BAYTRAIL(ilo->devid))
 126       ilo->gt = 1;
 127    else if (IS_SNB_GT2(ilo->devid) ||
 128             IS_IVB_GT2(ilo->devid) ||
 129             IS_HSW_GT2(ilo->devid))
 130       ilo->gt = 2;
 131    else
 132       ilo->gt = 0;
 133
 134    /* stolen from classic i965 */
 135    /* WM maximum threads is number of EUs times number of threads per EU. */
 136    if (ilo->gen >= ILO_GEN(7)) {
 137       if (ilo->gt == 1) {
 138          ilo->max_wm_threads = 48;
 139          ilo->max_vs_threads = 36;
 140          ilo->max_gs_threads = 36;
 141          ilo->urb.size = 128;
 142          ilo->urb.max_vs_entries = 512;
 143          ilo->urb.max_gs_entries = 192;
 144       } else if (ilo->gt == 2) {
 145          ilo->max_wm_threads = 172;
 146          ilo->max_vs_threads = 128;
 147          ilo->max_gs_threads = 128;
 148          ilo->urb.size = 256;
 149          ilo->urb.max_vs_entries = 704;
 150          ilo->urb.max_gs_entries = 320;
 151       } else {
 152          assert(!"Unknown gen7 device.");
 153       }
 154    } else if (ilo->gen == ILO_GEN(6)) {
 155       if (ilo->gt == 2) {
 156          ilo->max_wm_threads = 80;
 157          ilo->max_vs_threads = 60;
 158          ilo->max_gs_threads = 60;
 159          ilo->urb.size = 64;            /* volume 5c.5 section 5.1 */
 160          ilo->urb.max_vs_entries = 256; /* volume 2a (see 3DSTATE_URB) */
 161          ilo->urb.max_gs_entries = 256;
 162       } else {
 163          ilo->max_wm_threads = 40;
 164          ilo->max_vs_threads = 24;
 165          ilo->max_gs_threads = 21; /* conservative; 24 if rendering disabled */
 166          ilo->urb.size = 32;            /* volume 5c.5 section 5.1 */
 167          ilo->urb.max_vs_entries = 256; /* volume 2a (see 3DSTATE_URB) */
 168          ilo->urb.max_gs_entries = 256;
 169       }
 170    }
 171
 172    ilo->cp = ilo_cp_create(ilo->winsys, is->has_llc);
 173    if (!ilo->cp) {
 174       ilo_context_destroy(&ilo->base);
 175       return NULL;
 176    }
 177
 178    ilo_cp_set_hook(ilo->cp, ILO_CP_HOOK_NEW_BATCH,
 179          ilo_context_new_cp_batch, (void *) ilo);
 180    ilo_cp_set_hook(ilo->cp, ILO_CP_HOOK_PRE_FLUSH,
 181          ilo_context_pre_cp_flush, (void *) ilo);
 182    ilo_cp_set_hook(ilo->cp, ILO_CP_HOOK_POST_FLUSH,
 183          ilo_context_post_cp_flush, (void *) ilo);
 184
 185    ilo->base.screen = screen;
 186    ilo->base.priv = priv;
 187
 188    ilo->base.destroy = ilo_context_destroy;
 189    ilo->base.flush = ilo_flush;
 190
 191    ilo_init_3d_functions(ilo);
 192    ilo_init_query_functions(ilo);
 193    ilo_init_state_functions(ilo);
 194    ilo_init_blit_functions(ilo);
 195    ilo_init_transfer_functions(ilo);
 196    ilo_init_video_functions(ilo);
 197    ilo_init_gpgpu_functions(ilo);
 198
 199    return &ilo->base;
 200 }
 201
 202 /**
 203  * Initialize context-related functions.
 204  */
 205 void
 206 ilo_init_context_functions(struct ilo_screen *is)
 207 {
 208    is->base.context_create = ilo_context_create;
 209 }