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radeonsi: fix NGG VS primitive ID load

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When NGG VS need to export primitive ID, it will load it in GS
threads, so need to use gs_prim_id arg. Current nir to llvm
translator check vs_prim_id present to use vs_prim_id first.

Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/17109>
This commit is contained in:
Qiang Yu
2022-07-23 18:30:45 +08:00
committed by Marge Bot
parent 7e1b804992
commit 3542d5ce6b
1 changed files with 2 additions and 1 deletions
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src/gallium/drivers/radeonsi/si_shader.c
+2 -1
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@@ -334,7 +334,8 @@ static void declare_vs_input_vgprs(struct si_shader_context *ctx, unsigned *num_
} else if (ctx->screen->info.gfx_level >= GFX10) {
ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT, NULL); /* user VGPR */
ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT,
&ctx->args.vs_prim_id); /* user vgpr or PrimID (legacy) */
/* user vgpr or PrimID (legacy) */
shader->key.ge.as_ngg ? NULL : &ctx->args.vs_prim_id);
ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT, &ctx->args.instance_id);
} else {
ac_add_arg(&ctx->args, AC_ARG_VGPR, 1, AC_ARG_INT, &ctx->args.instance_id);