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freedreno: fix compute shared_size underflow

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It caused ~5% of perf regression for some gfxbench benchmarks.

Fixes: b8d10d9e87 ("gallium: split up req_local_mem")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20219>
This commit is contained in:
Chia-I Wu
2022-12-07 20:04:55 -08:00
committed by Marge Bot
parent a7b3a279fb
commit 5ba35fd6cc
1 changed files with 1 additions and 1 deletions
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src/gallium/drivers/freedreno/a6xx/fd6_compute.c
+1 -1
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@@ -73,7 +73,7 @@ cs_program_emit(struct fd_context *ctx, struct fd_ringbuffer *ring,
A6XX_SP_CS_CTRL_REG0_BRANCHSTACK(ir3_shader_branchstack_hw(v)));
uint32_t shared_size =
MAX2(((int)v->cs.req_local_mem + variable_shared_size- 1) / 1024, 1);
MAX2(((int)(v->cs.req_local_mem + variable_shared_size) - 1) / 1024, 1);
OUT_PKT4(ring, REG_A6XX_SP_CS_UNKNOWN_A9B1, 1);
OUT_RING(ring, A6XX_SP_CS_UNKNOWN_A9B1_SHARED_SIZE(shared_size) |
A6XX_SP_CS_UNKNOWN_A9B1_UNK6);