r-b
On Tue, Jul 23, 2019 at 2:44 PM Samuel Pitoiset
<samuel.pitoi...@gmail.com> wrote:
>
> For some reasons, InstanceID is VGPR3 although StepRate0 is set to 1.
>
> v3: fix instanceID input VGPR for geometry
> 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 | 8 ++++++--
> 2 files changed, 15 insertions(+), 5 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..06122664a13 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;
> }
> @@ -837,7 +837,11 @@ static void radv_postprocess_config(const struct
> radv_physical_device *pdevice,
>
> if (es_type == MESA_SHADER_VERTEX) {
> /* VGPR0-3: (VertexID, InstanceID / StepRate0, ...) */
> - es_vgpr_comp_cnt = info->info.vs.needs_instance_id ?
> 1 : 0;
> + if (info->info.vs.needs_instance_id) {
> + es_vgpr_comp_cnt =
> pdevice->rad_info.chip_class >= GFX10 ? 3 : 1;
> + } else {
> + es_vgpr_comp_cnt = 0;
> + }
> } else if (es_type == MESA_SHADER_TESS_EVAL) {
> es_vgpr_comp_cnt = info->info.uses_prim_id ? 3 : 2;
> } else {
> --
> 2.22.0
>
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