1 /* 2 * Copyright (C) 2018 Rob Clark <robclark (at) 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 (at) 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 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 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
