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ir3: use ldg.k load size
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ldg.k can copy up to 256 vec4s at once but we currently emit one ldg.k
per vec4. Fix this by using the load size field of ldg.k.

Signed-off-by: Job Noorman <jnoorman@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/40947>
This commit is contained in:
Job Noorman 2026-04-14 14:41:20 +02:00 • committed by Marge Bot
parent a1272cabe0
commit 118b975ce7
1 changed files with 5 additions and 3 deletions
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8
src/freedreno/ir3/ir3_nir_analyze_ubo_ranges.c
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@ -406,10 +406,12 @@ copy_global_to_uniform(nir_shader *nir, struct ir3_ubo_analysis_state *state)
}
unsigned size = (range->end - range->start);
for (unsigned offset = 0; offset < size; offset += 16) {
/* ldg.k can copy at most 256 vec4s. */
for (unsigned offset = 0; offset < size; offset += 256 * 16) {
unsigned const_offset = range->offset / 4 + offset / 4;
nir_copy_global_to_uniform_ir3(b, base, .base = start + offset,
.range_base = const_offset, .range = 1);
nir_copy_global_to_uniform_ir3(
b, base, .base = start + offset, .range_base = const_offset,
.range = MIN2(256, (size - offset) / 16));
}
}