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/*
* 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->layout.layer_first ? 1 : prsc->array_size;
heightalign = tile_alignment[rsc->layout.cpp].heightalign;
for (level = 0; level <= prsc->last_level; level++) {
struct fdl_slice *slice = fd_resource_slice(rsc, level);
uint32_t aligned_height = height;
uint32_t blocks;
if (fd_resource_tile_mode(prsc, level)) {
pitchalign = tile_alignment[rsc->layout.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);
}
unsigned pitch_pixels;
if (layout == UTIL_FORMAT_LAYOUT_ASTC)
pitch_pixels =
util_align_npot(width, pitchalign * util_format_get_blockwidth(format));
else
pitch_pixels = align(width, pitchalign);
slice->offset = size;
blocks = util_format_get_nblocks(format, pitch_pixels, aligned_height);
slice->pitch = util_format_get_nblocksx(format, pitch_pixels) *
rsc->layout.cpp;
/* 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 && fd_resource_slice(rsc, level - 1)->size0 > 0xf000)))
slice->size0 = align(blocks * rsc->layout.cpp, alignment);
else if (level == 0 || rsc->layout.layer_first || alignment == 1)
slice->size0 = align(blocks * rsc->layout.cpp, alignment);
else
slice->size0 = fd_resource_slice(rsc, level - 1)->size0;
size += slice->size0 * depth * layers_in_level;
width = u_minify(width, 1);
height = u_minify(height, 1);
depth = u_minify(depth, 1);
}
return size;
}
static void
setup_lrz(struct fd_resource *rsc)
{
struct fd_screen *screen = fd_screen(rsc->base.screen);
const uint32_t flags = DRM_FREEDRENO_GEM_CACHE_WCOMBINE |
DRM_FREEDRENO_GEM_TYPE_KMEM; /* TODO */
unsigned lrz_pitch = align(DIV_ROUND_UP(rsc->base.width0, 8), 64);
unsigned lrz_height = DIV_ROUND_UP(rsc->base.height0, 8);
/* LRZ buffer is super-sampled: */
switch (rsc->base.nr_samples) {
case 4:
lrz_pitch *= 2;
/* fallthrough */
case 2:
lrz_height *= 2;
}
unsigned size = lrz_pitch * lrz_height * 2;
size += 0x1000; /* for GRAS_LRZ_FAST_CLEAR_BUFFER */
rsc->lrz_height = lrz_height;
rsc->lrz_width = lrz_pitch;
rsc->lrz_pitch = lrz_pitch;
rsc->lrz = fd_bo_new(screen->dev, size, flags, "lrz");
}
uint32_t
fd5_setup_slices(struct fd_resource *rsc)
{
uint32_t alignment;
if ((fd_mesa_debug & FD_DBG_LRZ) && has_depth(rsc->base.format))
setup_lrz(rsc);
switch (rsc->base.target) {
case PIPE_TEXTURE_3D:
rsc->layout.layer_first = false;
alignment = 4096;
break;
default:
rsc->layout.layer_first = true;
alignment = 1;
break;
}
return setup_slices(rsc, alignment, rsc->base.format);
}
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