summaryrefslogtreecommitdiffstats
path: root/src/gallium/drivers/freedreno/a5xx/fd5_resource.c
blob: 71bcc3815284bf4b2bb08404a3fc6728a3223d6a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
/*
 * Copyright (C) 2018 Rob Clark <robclark@freedesktop.org>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 *
 * Authors:
 *    Rob Clark <robclark@freedesktop.org>
 */

#include "fd5_resource.h"

/* indexed by cpp: */
static const struct {
	unsigned pitchalign;
	unsigned heightalign;
} tile_alignment[] = {
	[1]  = { 128, 32 },
	[2]  = { 128, 16 },
	[3]  = { 128, 16 },
	[4]  = {  64, 16 },
	[8]  = {  64, 16 },
	[12] = {  64, 16 },
	[16] = {  64, 16 },
};

/* NOTE: good way to test this is:  (for example)
 *  piglit/bin/texelFetch fs sampler2D 100x100x1-100x300x1
 */
static uint32_t
setup_slices(struct fd_resource *rsc, uint32_t alignment, enum pipe_format format)
{
	struct pipe_resource *prsc = &rsc->base;
	struct fd_screen *screen = fd_screen(prsc->screen);
	enum util_format_layout layout = util_format_description(format)->layout;
	uint32_t pitchalign = screen->gmem_alignw;
	uint32_t heightalign;
	uint32_t level, size = 0;
	uint32_t width = prsc->width0;
	uint32_t height = prsc->height0;
	uint32_t depth = prsc->depth0;
	/* in layer_first layout, the level (slice) contains just one
	 * layer (since in fact the layer contains the slices)
	 */
	uint32_t layers_in_level = rsc->layer_first ? 1 : prsc->array_size;

	heightalign = tile_alignment[rsc->cpp].heightalign;

	for (level = 0; level <= prsc->last_level; level++) {
		struct fd_resource_slice *slice = fd_resource_slice(rsc, level);
		bool linear_level = fd_resource_level_linear(prsc, level);
		uint32_t aligned_height = height;
		uint32_t blocks;

		if (rsc->tile_mode && !linear_level) {
			pitchalign = tile_alignment[rsc->cpp].pitchalign;
			aligned_height = align(aligned_height, heightalign);
		} else {
			pitchalign = 64;

			/* The blits used for mem<->gmem work at a granularity of
			 * 32x32, which can cause faults due to over-fetch on the
			 * last level.  The simple solution is to over-allocate a
			 * bit the last level to ensure any over-fetch is harmless.
			 * The pitch is already sufficiently aligned, but height
			 * may not be:
			 */
			if ((level == prsc->last_level) && (prsc->target != PIPE_BUFFER))
				aligned_height = align(aligned_height, 32);
		}

		if (layout == UTIL_FORMAT_LAYOUT_ASTC)
			slice->pitch =
				util_align_npot(width, pitchalign * util_format_get_blockwidth(format));
		else
			slice->pitch = align(width, pitchalign);

		slice->offset = size;
		blocks = util_format_get_nblocks(format, slice->pitch, aligned_height);

		/* 1d array and 2d array textures must all have the same layer size
		 * for each miplevel on a3xx. 3d textures can have different layer
		 * sizes for high levels, but the hw auto-sizer is buggy (or at least
		 * different than what this code does), so as soon as the layer size
		 * range gets into range, we stop reducing it.
		 */
		if (prsc->target == PIPE_TEXTURE_3D && (
					level == 1 ||
					(level > 1 && rsc->slices[level - 1].size0 > 0xf000)))
			slice->size0 = align(blocks * rsc->cpp, alignment);
		else if (level == 0 || rsc->layer_first || alignment == 1)
			slice->size0 = align(blocks * rsc->cpp, alignment);
		else
			slice->size0 = rsc->slices[level - 1].size0;

#if 0
		debug_printf("%s: %ux%ux%u@%u: %2u: stride=%4u, size=%7u, aligned_height=%3u\n",
				util_format_name(prsc->format),
				prsc->width0, prsc->height0, prsc->depth0, rsc->cpp,
				level, slice->pitch * rsc->cpp,
				slice->size0 * depth * layers_in_level,
				aligned_height);
#endif

		size += slice->size0 * depth * layers_in_level;

		width = u_minify(width, 1);
		height = u_minify(height, 1);
		depth = u_minify(depth, 1);
	}

	return size;
}

uint32_t
fd5_setup_slices(struct fd_resource *rsc)
{
	uint32_t alignment;

	switch (rsc->base.target) {
	case PIPE_TEXTURE_3D:
		rsc->layer_first = false;
		alignment = 4096;
		break;
	default:
		rsc->layer_first = true;
		alignment = 1;
		break;
	}

	return setup_slices(rsc, alignment, rsc->base.format);
}