From 72d84ae7ceaed4e723376a18d09689be183e0155 Mon Sep 17 00:00:00 2001 From: Kenneth Graunke Date: Tue, 29 Sep 2015 14:43:29 -0700 Subject: [PATCH] i965: Introduce a brw_vue_prog_data::include_vue_handles flag. MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Tessellation shaders and SIMD8 geometry shaders may need to resort to the pull model for inputs at times. When set, the state upload code will tell the hardware to provide URB handles for input data. Signed-off-by: Kenneth Graunke Reviewed-by: Kristian Høgsberg --- src/mesa/drivers/dri/i965/brw_compiler.h | 3 +++ src/mesa/drivers/dri/i965/gen8_gs_state.c | 2 ++ 2 files changed, 5 insertions(+) diff --git a/src/mesa/drivers/dri/i965/brw_compiler.h b/src/mesa/drivers/dri/i965/brw_compiler.h index 10e1fde73f6..6a9799e578e 100644 --- a/src/mesa/drivers/dri/i965/brw_compiler.h +++ b/src/mesa/drivers/dri/i965/brw_compiler.h @@ -485,6 +485,9 @@ struct brw_vue_prog_data { struct brw_stage_prog_data base; struct brw_vue_map vue_map; + /** Should the hardware deliver input VUE handles for URB pull loads? */ + bool include_vue_handles; + GLuint urb_read_length; GLuint total_grf; diff --git a/src/mesa/drivers/dri/i965/gen8_gs_state.c b/src/mesa/drivers/dri/i965/gen8_gs_state.c index d766ca7bebf..6738e85eaba 100644 --- a/src/mesa/drivers/dri/i965/gen8_gs_state.c +++ b/src/mesa/drivers/dri/i965/gen8_gs_state.c @@ -68,6 +68,8 @@ gen8_upload_gs_state(struct brw_context *brw) GEN7_GS_OUTPUT_VERTEX_SIZE_SHIFT) | (brw->gs.prog_data->output_topology << GEN7_GS_OUTPUT_TOPOLOGY_SHIFT) | + (prog_data->include_vue_handles ? + GEN7_GS_INCLUDE_VERTEX_HANDLES : 0) | (prog_data->urb_read_length << GEN6_GS_URB_READ_LENGTH_SHIFT) | (0 << GEN6_GS_URB_ENTRY_READ_OFFSET_SHIFT) | -- 2.30.2