For some reasons, InstanceID is VGPR3 although StepRate0 is set to 1.
v2: fix instanceID
Signed-off-by: Samuel Pitoiset <samuel.pitoi...@gmail.com>
---
src/amd/vulkan/radv_nir_to_llvm.c | 12 +++++++++---
src/amd/vulkan/radv_shader.c | 2 +-
2 files changed, 10 insertions(+), 4 deletions(-)
diff --git a/src/amd/vulkan/radv_nir_to_llvm.c
b/src/amd/vulkan/radv_nir_to_llvm.c
index 336bae28614..cf73cdc692b 100644
--- a/src/amd/vulkan/radv_nir_to_llvm.c
+++ b/src/amd/vulkan/radv_nir_to_llvm.c
@@ -852,9 +852,15 @@ declare_vs_input_vgprs(struct radv_shader_context *ctx,
struct arg_info *args)
}
} else {
if (ctx->ac.chip_class >= GFX10) {
- add_arg(args, ARG_VGPR, ctx->ac.i32, NULL); /*
user vgpr */
- add_arg(args, ARG_VGPR, ctx->ac.i32, NULL); /*
user vgpr */
- add_arg(args, ARG_VGPR, ctx->ac.i32,
&ctx->abi.instance_id);
+ if (ctx->options->key.vs_common_out.as_ngg) {
+ add_arg(args, ARG_VGPR, ctx->ac.i32,
NULL); /* user vgpr */
+ add_arg(args, ARG_VGPR, ctx->ac.i32,
NULL); /* user vgpr */
+ add_arg(args, ARG_VGPR, ctx->ac.i32,
&ctx->abi.instance_id);
+ } else {
+ add_arg(args, ARG_VGPR, ctx->ac.i32,
NULL); /* unused */
+ add_arg(args, ARG_VGPR, ctx->ac.i32,
&ctx->vs_prim_id);
+ add_arg(args, ARG_VGPR, ctx->ac.i32,
&ctx->abi.instance_id);
+ }
} else {
add_arg(args, ARG_VGPR, ctx->ac.i32,
&ctx->abi.instance_id);
add_arg(args, ARG_VGPR, ctx->ac.i32,
&ctx->vs_prim_id);
diff --git a/src/amd/vulkan/radv_shader.c b/src/amd/vulkan/radv_shader.c
index 3adaf52e152..3d1b56e7f60 100644
--- a/src/amd/vulkan/radv_shader.c
+++ b/src/amd/vulkan/radv_shader.c
@@ -765,7 +765,7 @@ static void radv_postprocess_config(const struct
radv_physical_device *pdevice,
if (info->vs.export_prim_id) {
vgpr_comp_cnt = 2;
} else if (info->info.vs.needs_instance_id) {
- vgpr_comp_cnt = 1;
+ vgpr_comp_cnt = pdevice->rad_info.chip_class >=
GFX10 ? 3 : 1;
} else {
vgpr_comp_cnt = 0;
}
--
2.22.0
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