diff options
Diffstat (limited to 'src/gallium/drivers/freedreno/a6xx/fd6_resource.c')
| -rw-r--r-- | src/gallium/drivers/freedreno/a6xx/fd6_resource.c | 149 |
1 files changed, 149 insertions, 0 deletions
diff --git a/src/gallium/drivers/freedreno/a6xx/fd6_resource.c b/src/gallium/drivers/freedreno/a6xx/fd6_resource.c new file mode 100644 index 00000000000..6f1b745047c --- /dev/null +++ b/src/gallium/drivers/freedreno/a6xx/fd6_resource.c @@ -0,0 +1,149 @@ +/* + * Copyright (C) 2018 Rob Clark <[email protected]> + * Copyright © 2018 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 <[email protected]> + */ + +#include "fd6_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 +fd6_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); +} |