From f680a01ad4ed360b44cd1b9d3c447a95cedbccd5 Mon Sep 17 00:00:00 2001 From: Jason Ekstrand Date: Mon, 21 Nov 2016 20:22:53 -0800 Subject: [PATCH] anv/cmd_buffer: Emit a CS stall before setting a CS pipeline Reviewed-by: Lionel Landwerlin Reviewed-by: Jordan Justen Cc: "13.0" --- src/intel/vulkan/genX_cmd_buffer.c | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/src/intel/vulkan/genX_cmd_buffer.c b/src/intel/vulkan/genX_cmd_buffer.c index 52b3a82..6e957b7 100644 --- a/src/intel/vulkan/genX_cmd_buffer.c +++ b/src/intel/vulkan/genX_cmd_buffer.c @@ -1564,8 +1564,20 @@ genX(cmd_buffer_flush_compute_state)(struct anv_cmd_buffer *cmd_buffer) genX(flush_pipeline_select_gpgpu)(cmd_buffer); - if (cmd_buffer->state.compute_dirty & ANV_CMD_DIRTY_PIPELINE) + if (cmd_buffer->state.compute_dirty & ANV_CMD_DIRTY_PIPELINE) { + /* From the Sky Lake PRM Vol 2a, MEDIA_VFE_STATE: + * + * "A stalling PIPE_CONTROL is required before MEDIA_VFE_STATE unless + * the only bits that are changed are scoreboard related: Scoreboard + * Enable, Scoreboard Type, Scoreboard Mask, Scoreboard * Delta. For + * these scoreboard related states, a MEDIA_STATE_FLUSH is + * sufficient." + */ + cmd_buffer->state.pending_pipe_bits |= ANV_PIPE_CS_STALL_BIT; + genX(cmd_buffer_apply_pipe_flushes)(cmd_buffer); + anv_batch_emit_batch(&cmd_buffer->batch, &pipeline->batch); + } if (cmd_buffer->state.push_constants_dirty & VK_SHADER_STAGE_COMPUTE_BIT) { struct anv_state push_state = -- 2.7.4