From 37f9788e9a8e443772b5ad6f339567e6ae6a8320 Mon Sep 17 00:00:00 2001 From: Lionel Landwerlin Date: Thu, 29 Nov 2018 13:02:03 +0000 Subject: [PATCH] anv: flush pipeline before query result copies Pipeline state pending bits should be taken into account when copying results. In the particular bug below, the results of the vkCmdCopyQueryPoolResults() command was being overwritten by the preceding vkCmdCopyBuffer() with a same destination buffer. This is because we copy the buffers using the 3D pipeline whereas we copy the query results using the command streamer. Those pieces of HW work in parallel and the results are somewhat undefined. v2: Unconditionally flush the pipeline before copying the results (Jason) v3: Wrap & expressions (Jason) Signed-off-by: Lionel Landwerlin Suggested-by: Jason Ekstrand Reviewed-by: Jason Ekstrand Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108894 Cc: mesa-stable@lists.freedesktop.org --- src/intel/vulkan/genX_query.c | 9 ++++----- 1 file changed, 4 insertions(+), 5 deletions(-) diff --git a/src/intel/vulkan/genX_query.c b/src/intel/vulkan/genX_query.c index ce8757f2643..4831c4ea334 100644 --- a/src/intel/vulkan/genX_query.c +++ b/src/intel/vulkan/genX_query.c @@ -729,11 +729,10 @@ void genX(CmdCopyQueryPoolResults)( ANV_FROM_HANDLE(anv_query_pool, pool, queryPool); ANV_FROM_HANDLE(anv_buffer, buffer, destBuffer); - if (flags & VK_QUERY_RESULT_WAIT_BIT) { - anv_batch_emit(&cmd_buffer->batch, GENX(PIPE_CONTROL), pc) { - pc.CommandStreamerStallEnable = true; - pc.StallAtPixelScoreboard = true; - } + if ((flags & VK_QUERY_RESULT_WAIT_BIT) || + (cmd_buffer->state.pending_pipe_bits & ANV_PIPE_FLUSH_BITS)) { + cmd_buffer->state.pending_pipe_bits |= ANV_PIPE_CS_STALL_BIT; + genX(cmd_buffer_apply_pipe_flushes)(cmd_buffer); } struct anv_address dest_addr = anv_address_add(buffer->address, destOffset); -- 2.30.2