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freedreno/a6xx: FETCHSIZE is PITCHALIGN

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"FETCHSIZE" is actually a "minimum pitch" or "pitchalign" value that's
relevant for mipmaps. The 0 value means 64-bytes. Understanding this allows
some simplifications and will make it possible to use less alignment on
linear formats.

Signed-off-by: Jonathan Marek <jonathan@marek.ca>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5013>
This commit is contained in:
Jonathan Marek
2020-05-12 12:34:37 -04:00
committed by Marge Bot
parent 6269405a2b
commit 3a9ab3b6e9
12 changed files with 11 additions and 59 deletions
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3
src/freedreno/fdl/fd6_layout.c
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@@ -165,6 +165,9 @@ fdl6_layout(struct fdl_layout *layout,
ta->ubwc_blockheight),
ubwc_tile_height_alignment);
layout->pitchalign =
util_logbase2_ceil(fdl6_pitchalign(layout, mip_levels - 1) * layout->cpp >> 6);
for (uint32_t level = 0; level < mip_levels; level++) {
uint32_t depth = u_minify(depth0, level);
struct fdl_slice *slice = &layout->slices[level];