From: Anuj Phogat Date: Wed, 17 Jan 2018 22:33:17 +0000 (-0800) Subject: i965/icl: Add render target flush after uploading binding table X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=8a05b06146c005c0381b4784b4731e7dee8484aa;p=mesa.git i965/icl: Add render target flush after uploading binding table From PIPE_CONTROL command description in gfxspecs: "Whenever a Binding Table Index (BTI) used by a Render Taget Message points to a different RENDER_SURFACE_STATE, SW must issue a Render Target Cache Flush by enabling this bit. When render target flush is set due to new association of BTI, PS Scoreboard Stall bit must be set in this packet." V2: Move the PIPE_CONTROL to update_renderbuffer_surfaces() in brw_wm_surface_state.c (Ken). Fixes a fulsim error and a GPU hang described in below JIRA. JIRA: MD5-322 Signed-off-by: Anuj Phogat Reviewed-by: Kenneth Graunke --- diff --git a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c index 44c87df17d9..a5424ae3201 100644 --- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c +++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c @@ -971,6 +971,20 @@ update_renderbuffer_surfaces(struct brw_context *brw) emit_null_surface_state(brw, fb, &surf_offsets[rt_start]); } + /* The PIPE_CONTROL command description says: + * + * "Whenever a Binding Table Index (BTI) used by a Render Taget Message + * points to a different RENDER_SURFACE_STATE, SW must issue a Render + * Target Cache Flush by enabling this bit. When render target flush + * is set due to new association of BTI, PS Scoreboard Stall bit must + * be set in this packet." + */ + if (devinfo->gen >= 11) { + brw_emit_pipe_control_flush(brw, + PIPE_CONTROL_RENDER_TARGET_FLUSH | + PIPE_CONTROL_STALL_AT_SCOREBOARD); + } + brw->ctx.NewDriverState |= BRW_NEW_SURFACES; }