+/*
+ * Copyright (C) 2018 Rob Clark <robclark@freedesktop.org>
+ * Copyright © 2018-2019 Google, Inc.
+ *
+ * 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 <stdio.h>
+
+#include "freedreno_layout.h"
+
+/* indexed by cpp, including msaa 2x and 4x: */
+static const struct {
+ unsigned pitchalign;
+ unsigned heightalign;
+} tile_alignment[] = {
+ [1] = { 128, 32 },
+ [2] = { 64, 32 },
+ [3] = { 64, 32 },
+ [4] = { 64, 16 },
+ [6] = { 64, 16 },
+ [8] = { 64, 16 },
+ [12] = { 64, 16 },
+ [16] = { 64, 16 },
+ [24] = { 64, 16 },
+ [32] = { 64, 16 },
+ [48] = { 64, 16 },
+ [64] = { 64, 16 },
+
+ /* special cases for r16: */
+ [0] = { 128, 16 },
+};
+
+/* NOTE: good way to test this is: (for example)
+ * piglit/bin/texelFetch fs sampler3D 100x100x8
+ */
+void
+fdl6_layout(struct fdl_layout *layout,
+ enum pipe_format format, uint32_t nr_samples,
+ uint32_t width0, uint32_t height0, uint32_t depth0,
+ uint32_t mip_levels, uint32_t array_size, bool is_3d)
+{
+ assert(nr_samples > 0);
+ layout->width0 = width0;
+ layout->height0 = height0;
+ layout->depth0 = depth0;
+
+ layout->cpp = util_format_get_blocksize(format);
+ layout->cpp *= nr_samples;
+
+ const struct util_format_description *format_desc =
+ util_format_description(format);
+ uint32_t level;
+ uint32_t depth = depth0;
+ /* linear dimensions: */
+ uint32_t lwidth = width0;
+ uint32_t lheight = height0;
+ /* tile_mode dimensions: */
+ uint32_t twidth = util_next_power_of_two(lwidth);
+ uint32_t theight = util_next_power_of_two(lheight);
+ int ta = layout->cpp;
+
+ /* The z16/r16 formats seem to not play by the normal tiling rules: */
+ if ((layout->cpp == 2) && (util_format_get_nr_components(format) == 1))
+ ta = 0;
+
+ uint32_t alignment;
+ if (is_3d) {
+ layout->layer_first = false;
+ alignment = 4096;
+ } else {
+ layout->layer_first = true;
+ alignment = 1;
+ }
+ /* in layer_first layout, the level (slice) contains just one
+ * layer (since in fact the layer contains the slices)
+ */
+ uint32_t layers_in_level = layout->layer_first ? 1 : array_size;
+
+ debug_assert(ta < ARRAY_SIZE(tile_alignment));
+ debug_assert(tile_alignment[ta].pitchalign);
+
+ for (level = 0; level < mip_levels; level++) {
+ struct fdl_slice *slice = &layout->slices[level];
+ uint32_t tile_mode = fdl_tile_mode(layout, level);
+ uint32_t width, height;
+
+ /* tiled levels of 3D textures are rounded up to PoT dimensions: */
+ if (is_3d && tile_mode) {
+ width = twidth;
+ height = theight;
+ } else {
+ width = lwidth;
+ height = lheight;
+ }
+ uint32_t aligned_height = height;
+ uint32_t pitchalign;
+
+ if (tile_mode) {
+ pitchalign = tile_alignment[ta].pitchalign;
+ aligned_height = align(aligned_height,
+ tile_alignment[ta].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 == mip_levels - 1)
+ aligned_height = align(aligned_height, 32);
+
+ if (format_desc->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 = layout->size;
+ uint32_t 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 a6xx. 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 (is_3d) {
+ if (level < 1 || layout->slices[level - 1].size0 > 0xf000) {
+ slice->size0 = align(blocks * layout->cpp, alignment);
+ } else {
+ slice->size0 = layout->slices[level - 1].size0;
+ }
+ } else {
+ slice->size0 = align(blocks * layout->cpp, alignment);
+ }
+
+ layout->size += slice->size0 * depth * layers_in_level;
+
+ if (false) {
+ fprintf(stderr, "%s: %ux%ux%u@%u:\t%2u: stride=%4u, size=%6u,%7u, aligned_height=%3u, blocks=%u, offset=0x%x tiling=%d\n",
+ util_format_name(format),
+ width, height, depth, layout->cpp,
+ level, slice->pitch * layout->cpp,
+ slice->size0, layout->size, aligned_height, blocks,
+ slice->offset, tile_mode);
+ }
+
+ depth = u_minify(depth, 1);
+ lwidth = u_minify(lwidth, 1);
+ lheight = u_minify(lheight, 1);
+ twidth = u_minify(twidth, 1);
+ theight = u_minify(theight, 1);
+ }
+
+ if (layout->layer_first) {
+ layout->layer_size = align(layout->size, 4096);
+ layout->size = layout->layer_size * array_size;
+ }
+}
projects / mesa.git / commitdiff