1/*
2 * Copyright (C) 2018 Rob Clark <robclark@freedesktop.org>
3 * Copyright © 2018-2019 Google, Inc.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice (including the next
13 * paragraph) shall be included in all copies or substantial portions of the
14 * 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 FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22 * SOFTWARE.
23 *
24 * Authors:
25 *    Rob Clark <robclark@freedesktop.org>
26 */
27
28#include <stdio.h>
29
30#include "freedreno_layout.h"
31
32void
33fdl5_layout(struct fdl_layout *layout, enum pipe_format format,
34            uint32_t nr_samples, uint32_t width0, uint32_t height0,
35            uint32_t depth0, uint32_t mip_levels, uint32_t array_size,
36            bool is_3d)
37{
38   assert(nr_samples > 0);
39   layout->width0 = width0;
40   layout->height0 = height0;
41   layout->depth0 = depth0;
42
43   layout->cpp = util_format_get_blocksize(format);
44   layout->cpp *= nr_samples;
45   layout->cpp_shift = ffs(layout->cpp) - 1;
46
47   layout->format = format;
48   layout->nr_samples = nr_samples;
49   layout->layer_first = !is_3d;
50
51   uint32_t heightalign = layout->cpp == 1 ? 32 : 16;
52   /* in layer_first layout, the level (slice) contains just one
53    * layer (since in fact the layer contains the slices)
54    */
55   uint32_t layers_in_level = layout->layer_first ? 1 : array_size;
56
57   /* use 128 pixel alignment for cpp=1 and cpp=2 */
58   if (layout->cpp < 4 && layout->tile_mode)
59      fdl_set_pitchalign(layout, fdl_cpp_shift(layout) + 7);
60   else
61      fdl_set_pitchalign(layout, fdl_cpp_shift(layout) + 6);
62
63   for (uint32_t level = 0; level < mip_levels; level++) {
64      struct fdl_slice *slice = &layout->slices[level];
65      uint32_t tile_mode = fdl_tile_mode(layout, level);
66      uint32_t pitch = fdl_pitch(layout, level);
67      uint32_t nblocksy =
68         util_format_get_nblocksy(format, u_minify(height0, level));
69
70      if (tile_mode) {
71         nblocksy = align(nblocksy, heightalign);
72      } else {
73         /* The blits used for mem<->gmem work at a granularity of
74          * 32x32, which can cause faults due to over-fetch on the
75          * last level.  The simple solution is to over-allocate a
76          * bit the last level to ensure any over-fetch is harmless.
77          * The pitch is already sufficiently aligned, but height
78          * may not be:
79          */
80         if (level == mip_levels - 1)
81            nblocksy = align(nblocksy, 32);
82      }
83
84      slice->offset = layout->size;
85
86      const int alignment = is_3d ? 4096 : 1;
87
88      /* 1d array and 2d array textures must all have the same layer size
89       * for each miplevel on a3xx. 3d textures can have different layer
90       * sizes for high levels, but the hw auto-sizer is buggy (or at least
91       * different than what this code does), so as soon as the layer size
92       * range gets into range, we stop reducing it.
93       */
94      if (is_3d && (level == 1 ||
95                    (level > 1 && layout->slices[level - 1].size0 > 0xf000)))
96         slice->size0 = align(nblocksy * pitch, alignment);
97      else if (level == 0 || layout->layer_first || alignment == 1)
98         slice->size0 = align(nblocksy * pitch, alignment);
99      else
100         slice->size0 = layout->slices[level - 1].size0;
101
102      layout->size += slice->size0 * u_minify(depth0, level) * layers_in_level;
103   }
104}
105