Only VS needs that. We shouldn't hardcode these values but
that's complicated to not do that for now.
Signed-off-by: Samuel Pitoiset <samuel.pitoi...@gmail.com>
---
src/amd/vulkan/radv_shader.c | 22 +++++++++++++++++++++-
1 file changed, 21 insertions(+), 1 deletion(-)
diff --git a/src/amd/vulkan/radv_shader.c b/src/amd/vulkan/radv_shader.c
index 79418b401fb..d033ed0da09 100644
--- a/src/amd/vulkan/radv_shader.c
+++ b/src/amd/vulkan/radv_shader.c
@@ -914,17 +914,37 @@ radv_shader_variant_create(struct radv_device *device,
unsigned num_lds_symbols = 0;
const char *elf_data = (const char *)((struct
radv_shader_binary_rtld *)binary)->data;
size_t elf_size = ((struct radv_shader_binary_rtld
*)binary)->elf_size;
+ unsigned esgs_ring_size = 0;
if (device->physical_device->rad_info.chip_class >= GFX9 &&
binary->stage == MESA_SHADER_GEOMETRY &&
!binary->is_gs_copy_shader) {
+ /* TODO: Do not hardcode this value */
+ esgs_ring_size = 32 * 1024;
+ }
+
+ if (binary->variant_info.is_ngg) {
+ /* GS stores Primitive IDs into LDS at the address
+ * corresponding to the ES thread of the provoking
+ * vertex. All ES threads load and export PrimitiveID
+ * for their thread.
+ */
+ if (binary->stage == MESA_SHADER_VERTEX &&
+ binary->variant_info.vs.export_prim_id) {
+ /* TODO: Do not harcode this value */
+ esgs_ring_size = 256 /* max_out_verts */ * 4;
+ }
+ }
+
+ if (esgs_ring_size) {
/* We add this symbol even on LLVM <= 8 to ensure that
* shader->config.lds_size is set correctly below.
*/
struct ac_rtld_symbol *sym =
&lds_symbols[num_lds_symbols++];
sym->name = "esgs_ring";
- sym->size = 32 * 1024;
+ sym->size = esgs_ring_size;
sym->align = 64 * 1024;
}
+
struct ac_rtld_open_info open_info = {
.info = &device->physical_device->rad_info,
.shader_type = binary->stage,
--
2.22.0
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