src/mesa/drivers/dri/i965/brw_device_info.h

   1  /*
   2   * Copyright © 2013 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   * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8   * and/or sell copies of the Software, and to permit persons to whom the
   9   * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
  18   * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20   * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21   * IN THE SOFTWARE.
  22   *
  23   */
  24
  25 #pragma once
  26 #include <stdbool.h>
  27
  28 struct brw_device_info
  29 {
  30    int gen; /**< Generation number: 4, 5, 6, 7, ... */
  31    int gt;
  32
  33    bool is_g4x;
  34    bool is_ivybridge;
  35    bool is_baytrail;
  36    bool is_haswell;
  37    bool is_cherryview;
  38
  39    bool has_hiz_and_separate_stencil;
  40    bool must_use_separate_stencil;
  41
  42    bool has_llc;
  43
  44    bool has_pln;
  45    bool has_compr4;
  46    bool has_surface_tile_offset;
  47
  48    /**
  49     * Quirks:
  50     *  @{
  51     */
  52    bool has_negative_rhw_bug;
  53
  54    /**
  55     * Some versions of Gen hardware don't do centroid interpolation correctly
  56     * on unlit pixels, causing incorrect values for derivatives near triangle
  57     * edges.  Enabling this flag causes the fragment shader to use
  58     * non-centroid interpolation for unlit pixels, at the expense of two extra
  59     * fragment shader instructions.
  60     */
  61    bool needs_unlit_centroid_workaround;
  62    /** @} */
  63
  64    /**
  65     * GPU Limits:
  66     *  @{
  67     */
  68    unsigned max_vs_threads;
  69    unsigned max_gs_threads;
  70    unsigned max_wm_threads;
  71
  72    struct {
  73       unsigned size;
  74       unsigned min_vs_entries;
  75       unsigned max_vs_entries;
  76       unsigned max_gs_entries;
  77    } urb;
  78    /** @} */
  79 };
  80
  81 const struct brw_device_info *brw_get_device_info(int devid);