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radv/gfx10: add an option to switch from legacy to NGG streamout

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This internal option is turned off by default because NGG streamout
still hangs. It seems like it's related to GDS as RadeonSI.

That option will be turned on once all issues are resolved.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
This commit is contained in:
Samuel Pitoiset
2019-09-09 10:23:30 +02:00
parent c5a00c3068
commit a15b3bcf1a
7 changed files with 43 additions and 24 deletions
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25
src/amd/vulkan/radv_pipeline.c
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@@ -2350,20 +2350,21 @@ radv_fill_shader_keys(struct radv_device *device,
keys[MESA_SHADER_VERTEX].vs_common_out.as_ngg = false;
}
/* TODO: Implement streamout support for NGG. */
gl_shader_stage last_xfb_stage = MESA_SHADER_VERTEX;
if (!device->physical_device->use_ngg_streamout) {
gl_shader_stage last_xfb_stage = MESA_SHADER_VERTEX;
for (int i = MESA_SHADER_VERTEX; i <= MESA_SHADER_GEOMETRY; i++) {
if (nir[i])
last_xfb_stage = i;
}
for (int i = MESA_SHADER_VERTEX; i <= MESA_SHADER_GEOMETRY; i++) {
if (nir[i])
last_xfb_stage = i;
}
if (nir[last_xfb_stage] &&
radv_nir_stage_uses_xfb(nir[last_xfb_stage])) {
if (nir[MESA_SHADER_TESS_CTRL])
keys[MESA_SHADER_TESS_EVAL].vs_common_out.as_ngg = false;
else
keys[MESA_SHADER_VERTEX].vs_common_out.as_ngg = false;
if (nir[last_xfb_stage] &&
radv_nir_stage_uses_xfb(nir[last_xfb_stage])) {
if (nir[MESA_SHADER_TESS_CTRL])
keys[MESA_SHADER_TESS_EVAL].vs_common_out.as_ngg = false;
else
keys[MESA_SHADER_VERTEX].vs_common_out.as_ngg = false;
}
}
}