1 /*
2 * Copyright (C) 2018 Rob Clark <robclark@freedesktop.org>
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 FROM,
20 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
21 * SOFTWARE.
22 *
23 * Authors:
24 * Rob Clark <robclark@freedesktop.org>
25 */
26
27 #include "fd5_resource.h"
28
29 /* indexed by cpp: */
30 static const struct {
31 unsigned pitchalign;
32 unsigned heightalign;
33 } tile_alignment[] = {
34 [1] = { 128, 32 },
35 [2] = { 128, 16 },
36 [3] = { 128, 16 },
37 [4] = { 64, 16 },
38 [8] = { 64, 16 },
39 [12] = { 64, 16 },
40 [16] = { 64, 16 },
41 };
42
43 /* NOTE: good way to test this is: (for example)
44 * piglit/bin/texelFetch fs sampler2D 100x100x1-100x300x1
45 */
46 static uint32_t
setup_slices(struct fd_resource * rsc,uint32_t alignment,enum pipe_format format)47 setup_slices(struct fd_resource *rsc, uint32_t alignment, enum pipe_format format)
48 {
49 struct pipe_resource *prsc = &rsc->base;
50 struct fd_screen *screen = fd_screen(prsc->screen);
51 enum util_format_layout layout = util_format_description(format)->layout;
52 uint32_t pitchalign = screen->gmem_alignw;
53 uint32_t heightalign;
54 uint32_t level, size = 0;
55 uint32_t width = prsc->width0;
56 uint32_t height = prsc->height0;
57 uint32_t depth = prsc->depth0;
58 /* in layer_first layout, the level (slice) contains just one
59 * layer (since in fact the layer contains the slices)
60 */
61 uint32_t layers_in_level = rsc->layer_first ? 1 : prsc->array_size;
62
63 heightalign = tile_alignment[rsc->cpp].heightalign;
64
65 for (level = 0; level <= prsc->last_level; level++) {
66 struct fd_resource_slice *slice = fd_resource_slice(rsc, level);
67 bool linear_level = fd_resource_level_linear(prsc, level);
68 uint32_t aligned_height = height;
69 uint32_t blocks;
70
71 if (rsc->tile_mode && !linear_level) {
72 pitchalign = tile_alignment[rsc->cpp].pitchalign;
73 aligned_height = align(aligned_height, heightalign);
74 } else {
75 pitchalign = 64;
76
77 /* The blits used for mem<->gmem work at a granularity of
78 * 32x32, which can cause faults due to over-fetch on the
79 * last level. The simple solution is to over-allocate a
80 * bit the last level to ensure any over-fetch is harmless.
81 * The pitch is already sufficiently aligned, but height
82 * may not be:
83 */
84 if ((level == prsc->last_level) && (prsc->target != PIPE_BUFFER))
85 aligned_height = align(aligned_height, 32);
86 }
87
88 if (layout == UTIL_FORMAT_LAYOUT_ASTC)
89 slice->pitch =
90 util_align_npot(width, pitchalign * util_format_get_blockwidth(format));
91 else
92 slice->pitch = align(width, pitchalign);
93
94 slice->offset = size;
95 blocks = util_format_get_nblocks(format, slice->pitch, aligned_height);
96
97 /* 1d array and 2d array textures must all have the same layer size
98 * for each miplevel on a3xx. 3d textures can have different layer
99 * sizes for high levels, but the hw auto-sizer is buggy (or at least
100 * different than what this code does), so as soon as the layer size
101 * range gets into range, we stop reducing it.
102 */
103 if (prsc->target == PIPE_TEXTURE_3D && (
104 level == 1 ||
105 (level > 1 && rsc->slices[level - 1].size0 > 0xf000)))
106 slice->size0 = align(blocks * rsc->cpp, alignment);
107 else if (level == 0 || rsc->layer_first || alignment == 1)
108 slice->size0 = align(blocks * rsc->cpp, alignment);
109 else
110 slice->size0 = rsc->slices[level - 1].size0;
111
112 #if 0
113 debug_printf("%s: %ux%ux%u@%u: %2u: stride=%4u, size=%7u, aligned_height=%3u\n",
114 util_format_name(prsc->format),
115 prsc->width0, prsc->height0, prsc->depth0, rsc->cpp,
116 level, slice->pitch * rsc->cpp,
117 slice->size0 * depth * layers_in_level,
118 aligned_height);
119 #endif
120
121 size += slice->size0 * depth * layers_in_level;
122
123 width = u_minify(width, 1);
124 height = u_minify(height, 1);
125 depth = u_minify(depth, 1);
126 }
127
128 return size;
129 }
130
131 uint32_t
fd5_setup_slices(struct fd_resource * rsc)132 fd5_setup_slices(struct fd_resource *rsc)
133 {
134 uint32_t alignment;
135
136 switch (rsc->base.target) {
137 case PIPE_TEXTURE_3D:
138 rsc->layer_first = false;
139 alignment = 4096;
140 break;
141 default:
142 rsc->layer_first = true;
143 alignment = 1;
144 break;
145 }
146
147 return setup_slices(rsc, alignment, rsc->base.format);
148 }
149