radv: increase minimum NGG vertex count requirement per workgroup on GFX 10.3
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6168>
diff --git a/src/amd/vulkan/radv_pipeline.c b/src/amd/vulkan/radv_pipeline.c
index 6d4df83..acca6c0 100644
--- a/src/amd/vulkan/radv_pipeline.c
+++ b/src/amd/vulkan/radv_pipeline.c
@@ -1939,6 +1939,7 @@
unsigned gsprim_lds_size = 0;
/* All these are per subgroup: */
+ const unsigned min_esverts = pipeline->device->physical_device->rad_info.chip_class >= GFX10_3 ? 29 : 24;
bool max_vert_out_per_gs_instance = false;
unsigned max_esverts_base = 256;
unsigned max_gsprims_base = 128; /* default prim group size clamp */
@@ -2064,7 +2065,7 @@
}
/* Hardware restriction: minimum value of max_esverts */
- max_esverts = MAX2(max_esverts, 23 + max_verts_per_prim);
+ max_esverts = MAX2(max_esverts, min_esverts - 1 + max_verts_per_prim);
unsigned max_out_vertices =
max_vert_out_per_gs_instance ? gs_info->gs.vertices_out :
@@ -2101,7 +2102,7 @@
pipeline->graphics.esgs_ring_size = ngg->esgs_ring_size;
- assert(ngg->hw_max_esverts >= 24); /* HW limitation */
+ assert(ngg->hw_max_esverts >= min_esverts); /* HW limitation */
}
static void
