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 "util/u_blitter.h"
  29 #include "intel_chipset.h"
  30
  31 #include "ilo_3d.h"
  32 #include "ilo_blit.h"
  33 #include "ilo_cp.h"
  34 #include "ilo_gpgpu.h"
  35 #include "ilo_query.h"
  36 #include "ilo_resource.h"
  37 #include "ilo_screen.h"
  38 #include "ilo_shader.h"
  39 #include "ilo_state.h"
  40 #include "ilo_video.h"
  41 #include "ilo_context.h"
  42
  43 static void
  44 ilo_context_new_cp_batch(struct ilo_cp *cp, void *data)
  45 {
  46    struct ilo_context *ilo = ilo_context(data);
  47
  48    if (cp->ring == ILO_CP_RING_RENDER)
  49       ilo_3d_new_cp_batch(ilo->hw3d);
  50 }
  51
  52 static void
  53 ilo_context_pre_cp_flush(struct ilo_cp *cp, void *data)
  54 {
  55    struct ilo_context *ilo = ilo_context(data);
  56
  57    if (cp->ring == ILO_CP_RING_RENDER)
  58       ilo_3d_pre_cp_flush(ilo->hw3d);
  59 }
  60
  61 static void
  62 ilo_context_post_cp_flush(struct ilo_cp *cp, void *data)
  63 {
  64    struct ilo_context *ilo = ilo_context(data);
  65
  66    if (ilo->last_cp_bo)
  67       ilo->last_cp_bo->unreference(ilo->last_cp_bo);
  68
  69    /* remember the just flushed bo, on which fences could wait */
  70    ilo->last_cp_bo = cp->bo;
  71    ilo->last_cp_bo->reference(ilo->last_cp_bo);
  72
  73    if (cp->ring == ILO_CP_RING_RENDER)
  74       ilo_3d_post_cp_flush(ilo->hw3d);
  75 }
  76
  77 static void
  78 ilo_flush(struct pipe_context *pipe,
  79           struct pipe_fence_handle **f,
  80           enum pipe_flush_flags flags)
  81 {
  82    struct ilo_context *ilo = ilo_context(pipe);
  83
  84    if (f) {
  85       struct ilo_fence *fence;
  86
  87       fence = CALLOC_STRUCT(ilo_fence);
  88       if (fence) {
  89          pipe_reference_init(&fence->reference, 1);
  90
  91          /* reference the batch bo that we want to wait on */
  92          if (ilo_cp_empty(ilo->cp))
  93             fence->bo = ilo->last_cp_bo;
  94          else
  95             fence->bo = ilo->cp->bo;
  96
  97          if (fence->bo)
  98             fence->bo->reference(fence->bo);
  99       }
 100
 101       *f = (struct pipe_fence_handle *) fence;
 102    }
 103
 104    ilo_cp_flush(ilo->cp);
 105 }
 106
 107 static void
 108 ilo_context_destroy(struct pipe_context *pipe)
 109 {
 110    struct ilo_context *ilo = ilo_context(pipe);
 111
 112    if (ilo->last_cp_bo)
 113       ilo->last_cp_bo->unreference(ilo->last_cp_bo);
 114
 115    if (ilo->blitter)
 116       util_blitter_destroy(ilo->blitter);
 117    if (ilo->hw3d)
 118       ilo_3d_destroy(ilo->hw3d);
 119    if (ilo->shader_cache)
 120       ilo_shader_cache_destroy(ilo->shader_cache);
 121    if (ilo->cp)
 122       ilo_cp_destroy(ilo->cp);
 123
 124    FREE(ilo);
 125 }
 126
 127 static struct pipe_context *
 128 ilo_context_create(struct pipe_screen *screen, void *priv)
 129 {
 130    struct ilo_screen *is = ilo_screen(screen);
 131    struct ilo_context *ilo;
 132
 133    ilo = CALLOC_STRUCT(ilo_context);
 134    if (!ilo)
 135       return NULL;
 136
 137    ilo->winsys = is->winsys;
 138    ilo->devid = is->devid;
 139    ilo->gen = is->gen;
 140
 141    if (IS_SNB_GT1(ilo->devid) ||
 142        IS_IVB_GT1(ilo->devid) ||
 143        IS_HSW_GT1(ilo->devid) ||
 144        IS_BAYTRAIL(ilo->devid))
 145       ilo->gt = 1;
 146    else if (IS_SNB_GT2(ilo->devid) ||
 147             IS_IVB_GT2(ilo->devid) ||
 148             IS_HSW_GT2(ilo->devid))
 149       ilo->gt = 2;
 150    else
 151       ilo->gt = 0;
 152
 153    /* stolen from classic i965 */
 154    /* WM maximum threads is number of EUs times number of threads per EU. */
 155    if (ilo->gen >= ILO_GEN(7)) {
 156       if (ilo->gt == 1) {
 157          ilo->max_wm_threads = 48;
 158          ilo->max_vs_threads = 36;
 159          ilo->max_gs_threads = 36;
 160          ilo->urb.size = 128;
 161          ilo->urb.max_vs_entries = 512;
 162          ilo->urb.max_gs_entries = 192;
 163       } else if (ilo->gt == 2) {
 164          ilo->max_wm_threads = 172;
 165          ilo->max_vs_threads = 128;
 166          ilo->max_gs_threads = 128;
 167          ilo->urb.size = 256;
 168          ilo->urb.max_vs_entries = 704;
 169          ilo->urb.max_gs_entries = 320;
 170       } else {
 171          assert(!"Unknown gen7 device.");
 172       }
 173    } else if (ilo->gen == ILO_GEN(6)) {
 174       if (ilo->gt == 2) {
 175          ilo->max_wm_threads = 80;
 176          ilo->max_vs_threads = 60;
 177          ilo->max_gs_threads = 60;
 178          ilo->urb.size = 64;            /* volume 5c.5 section 5.1 */
 179          ilo->urb.max_vs_entries = 256; /* volume 2a (see 3DSTATE_URB) */
 180          ilo->urb.max_gs_entries = 256;
 181       } else {
 182          ilo->max_wm_threads = 40;
 183          ilo->max_vs_threads = 24;
 184          ilo->max_gs_threads = 21; /* conservative; 24 if rendering disabled */
 185          ilo->urb.size = 32;            /* volume 5c.5 section 5.1 */
 186          ilo->urb.max_vs_entries = 256; /* volume 2a (see 3DSTATE_URB) */
 187          ilo->urb.max_gs_entries = 256;
 188       }
 189    }
 190
 191    ilo->cp = ilo_cp_create(ilo->winsys, is->has_llc);
 192    ilo->shader_cache = ilo_shader_cache_create(ilo->winsys);
 193    if (ilo->cp)
 194       ilo->hw3d = ilo_3d_create(ilo->cp, ilo->gen, ilo->gt);
 195
 196    if (!ilo->cp || !ilo->shader_cache || !ilo->hw3d) {
 197       ilo_context_destroy(&ilo->base);
 198       return NULL;
 199    }
 200
 201    ilo_cp_set_hook(ilo->cp, ILO_CP_HOOK_NEW_BATCH,
 202          ilo_context_new_cp_batch, (void *) ilo);
 203    ilo_cp_set_hook(ilo->cp, ILO_CP_HOOK_PRE_FLUSH,
 204          ilo_context_pre_cp_flush, (void *) ilo);
 205    ilo_cp_set_hook(ilo->cp, ILO_CP_HOOK_POST_FLUSH,
 206          ilo_context_post_cp_flush, (void *) ilo);
 207
 208    ilo->dirty = ILO_DIRTY_ALL;
 209
 210    ilo->base.screen = screen;
 211    ilo->base.priv = priv;
 212
 213    ilo->base.destroy = ilo_context_destroy;
 214    ilo->base.flush = ilo_flush;
 215
 216    ilo_init_3d_functions(ilo);
 217    ilo_init_query_functions(ilo);
 218    ilo_init_state_functions(ilo);
 219    ilo_init_blit_functions(ilo);
 220    ilo_init_transfer_functions(ilo);
 221    ilo_init_video_functions(ilo);
 222    ilo_init_gpgpu_functions(ilo);
 223
 224    /* this must be called last as u_blitter is a client of the pipe context */
 225    ilo->blitter = util_blitter_create(&ilo->base);
 226    if (!ilo->blitter) {
 227       ilo_context_destroy(&ilo->base);
 228       return NULL;
 229    }
 230
 231    return &ilo->base;
 232 }
 233
 234 /**
 235  * Initialize context-related functions.
 236  */
 237 void
 238 ilo_init_context_functions(struct ilo_screen *is)
 239 {
 240    is->base.context_create = ilo_context_create;
 241 }