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authorSamuel Pitoiset <[email protected]>2019-07-12 12:17:14 +0200
committerSamuel Pitoiset <[email protected]>2019-07-12 17:47:11 +0200
commitdf062afa03c9bccbe14919600ebadc2e3fe3db58 (patch)
tree5c16e8cf84487f5b901ec20493adab3245a3cb0b /src/amd
parent3f76c0f47c9196556449c0e6e0bc5339028aff2a (diff)
radv/gfx10: enable vertex shaders without export parameters
GFX10 allows this. Signed-off-by: Samuel Pitoiset <[email protected]> Reviewed-by: Bas Nieuwenhuizen <[email protected]>
Diffstat (limited to 'src/amd')
-rw-r--r--src/amd/vulkan/radv_pipeline.c18
1 files changed, 15 insertions, 3 deletions
diff --git a/src/amd/vulkan/radv_pipeline.c b/src/amd/vulkan/radv_pipeline.c
index a58b0d6d006..63583a9c6d9 100644
--- a/src/amd/vulkan/radv_pipeline.c
+++ b/src/amd/vulkan/radv_pipeline.c
@@ -3287,9 +3287,17 @@ radv_pipeline_generate_hw_vs(struct radeon_cmdbuf *ctx_cs,
bool misc_vec_ena = outinfo->writes_pointsize ||
outinfo->writes_layer ||
outinfo->writes_viewport_index;
+ unsigned spi_vs_out_config, nparams;
- radeon_set_context_reg(ctx_cs, R_0286C4_SPI_VS_OUT_CONFIG,
- S_0286C4_VS_EXPORT_COUNT(MAX2(1, outinfo->param_exports) - 1));
+ /* VS is required to export at least one param. */
+ nparams = MAX2(outinfo->param_exports, 1);
+ spi_vs_out_config = S_0286C4_VS_EXPORT_COUNT(nparams - 1);
+
+ if (pipeline->device->physical_device->rad_info.chip_class >= GFX10) {
+ spi_vs_out_config |= S_0286C4_NO_PC_EXPORT(outinfo->param_exports == 0);
+ }
+
+ radeon_set_context_reg(ctx_cs, R_0286C4_SPI_VS_OUT_CONFIG, spi_vs_out_config);
radeon_set_context_reg(ctx_cs, R_02870C_SPI_SHADER_POS_FORMAT,
S_02870C_POS0_EXPORT_FORMAT(V_02870C_SPI_SHADER_4COMP) |
@@ -3389,9 +3397,13 @@ radv_pipeline_generate_hw_ngg(struct radeon_cmdbuf *ctx_cs,
outinfo->writes_layer ||
outinfo->writes_viewport_index;
bool break_wave_at_eoi = false;
+ unsigned nparams;
+ nparams = MAX2(outinfo->param_exports, 1);
radeon_set_context_reg(ctx_cs, R_0286C4_SPI_VS_OUT_CONFIG,
- S_0286C4_VS_EXPORT_COUNT(MAX2(1, outinfo->param_exports) - 1));
+ S_0286C4_VS_EXPORT_COUNT(nparams - 1) |
+ S_0286C4_NO_PC_EXPORT(outinfo->param_exports == 0));
+
radeon_set_context_reg(ctx_cs, R_028708_SPI_SHADER_IDX_FORMAT,
S_028708_IDX0_EXPORT_FORMAT(V_028708_SPI_SHADER_1COMP));
radeon_set_context_reg(ctx_cs, R_02870C_SPI_SHADER_POS_FORMAT,