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    bool is_broxton;
  39
  40    bool has_hiz_and_separate_stencil;
  41    bool must_use_separate_stencil;
  42
  43    bool has_llc;
  44
  45    bool has_pln;
  46    bool has_compr4;
  47    bool has_surface_tile_offset;
  48    bool supports_simd16_3src;
  49    bool has_resource_streamer;
  50
  51    /**
  52     * Quirks:
  53     *  @{
  54     */
  55    bool has_negative_rhw_bug;
  56
  57    /**
  58     * Some versions of Gen hardware don't do centroid interpolation correctly
  59     * on unlit pixels, causing incorrect values for derivatives near triangle
  60     * edges.  Enabling this flag causes the fragment shader to use
  61     * non-centroid interpolation for unlit pixels, at the expense of two extra
  62     * fragment shader instructions.
  63     */
  64    bool needs_unlit_centroid_workaround;
  65    /** @} */
  66
  67    /**
  68     * GPU Limits:
  69     *  @{
  70     */
  71    /**
  72     * Total number of slices present on the device whether or not they've been
  73     * fused off.
  74     */
  75    unsigned num_slices;
  76    unsigned max_vs_threads;
  77    unsigned max_hs_threads;
  78    unsigned max_ds_threads;
  79    unsigned max_gs_threads;
  80    unsigned max_wm_threads;
  81    unsigned max_cs_threads;
  82
  83    struct {
  84       /**
  85        * Hardware default URB size.  The units this is expressed in are
  86        * somewhat inconsistent: 512b units on Gen4-5, KB on Gen6-7, and KB
  87        * times the slice count on Gen8+.
  88        */
  89       unsigned size;
  90       unsigned min_vs_entries;
  91       unsigned max_vs_entries;
  92       unsigned max_hs_entries;
  93       unsigned min_ds_entries;
  94       unsigned max_ds_entries;
  95       unsigned max_gs_entries;
  96    } urb;
  97    /** @} */
  98 };
  99
 100 const struct brw_device_info *brw_get_device_info(int devid);
 101 const char *brw_get_device_name(int devid);