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-rw-r--r--src/gallium/drivers/r600/evergreen_state.c4
-rw-r--r--src/gallium/drivers/r600/r600_shader.c11
-rw-r--r--src/gallium/drivers/r600/r600_shader.h1
3 files changed, 14 insertions, 2 deletions
diff --git a/src/gallium/drivers/r600/evergreen_state.c b/src/gallium/drivers/r600/evergreen_state.c
index 9f0e82dd1c0..8ce31dca81e 100644
--- a/src/gallium/drivers/r600/evergreen_state.c
+++ b/src/gallium/drivers/r600/evergreen_state.c
@@ -2963,8 +2963,8 @@ void evergreen_update_gs_state(struct pipe_context *ctx, struct r600_pipe_shader
if (rctx->screen->b.info.drm_minor >= 35) {
r600_store_context_reg(cb, R_028B90_VGT_GS_INSTANCE_CNT,
- S_028B90_CNT(0) |
- S_028B90_ENABLE(0));
+ S_028B90_CNT(MIN2(rshader->gs_num_invocations, 127)) |
+ S_028B90_ENABLE(rshader->gs_num_invocations > 0));
}
r600_store_context_reg_seq(cb, R_02891C_SQ_GS_VERT_ITEMSIZE, 4);
r600_store_value(cb, cp_shader->ring_item_size >> 2);
diff --git a/src/gallium/drivers/r600/r600_shader.c b/src/gallium/drivers/r600/r600_shader.c
index 3f089b4f7d9..9f10c20c4c3 100644
--- a/src/gallium/drivers/r600/r600_shader.c
+++ b/src/gallium/drivers/r600/r600_shader.c
@@ -706,6 +706,8 @@ static int tgsi_declaration(struct r600_shader_ctx *ctx)
break;
} else if (d->Semantic.Name == TGSI_SEMANTIC_VERTEXID)
break;
+ else if (d->Semantic.Name == TGSI_SEMANTIC_INVOCATIONID)
+ break;
default:
R600_ERR("unsupported file %d declaration\n", d->Declaration.File);
return -EINVAL;
@@ -811,6 +813,12 @@ static void tgsi_src(struct r600_shader_ctx *ctx,
r600_src->swizzle[2] = 0;
r600_src->swizzle[3] = 0;
r600_src->sel = 0;
+ } else if (ctx->info.system_value_semantic_name[tgsi_src->Register.Index] == TGSI_SEMANTIC_INVOCATIONID) {
+ r600_src->swizzle[0] = 3;
+ r600_src->swizzle[1] = 3;
+ r600_src->swizzle[2] = 3;
+ r600_src->swizzle[3] = 3;
+ r600_src->sel = 1;
}
} else {
if (tgsi_src->Register.Indirect)
@@ -1753,6 +1761,9 @@ static int r600_shader_from_tgsi(struct r600_context *rctx,
case TGSI_PROPERTY_GS_MAX_OUTPUT_VERTICES:
shader->gs_max_out_vertices = property->u[0].Data;
break;
+ case TGSI_PROPERTY_GS_INVOCATIONS:
+ shader->gs_num_invocations = property->u[0].Data;
+ break;
}
break;
default:
diff --git a/src/gallium/drivers/r600/r600_shader.h b/src/gallium/drivers/r600/r600_shader.h
index d6db8f063ac..4b27ede96dd 100644
--- a/src/gallium/drivers/r600/r600_shader.h
+++ b/src/gallium/drivers/r600/r600_shader.h
@@ -74,6 +74,7 @@ struct r600_shader {
unsigned gs_input_prim;
unsigned gs_output_prim;
unsigned gs_max_out_vertices;
+ unsigned gs_num_invocations;
/* size in bytes of a data item in the ring (single vertex data) */
unsigned ring_item_size;