diff options
| author | Chris Wilson <[email protected]> | 2015-08-21 15:28:22 +0100 |
|---|---|---|
| committer | Chris Wilson <[email protected]> | 2015-08-22 09:11:18 +0100 |
| commit | 6817e0f1ce71d2a6d347d4c182f2cf4742dd5deb (patch) | |
| tree | 5ca1501c8a404e22b050d843466e99bf903ab102 | |
| parent | eb2776504ae32feaf41a5bad9f09f154045e96a3 (diff) | |
i965: Move control flush into pipelined conditional render
The nv_conditional_render piglits were sporadically failing. Moving
the control flush from the write and placing it just before the read
was sufficient to make the piglits pass a 1000/1000 times. The bspec
says that the flush enable bit "waits until all previous writes of
immediate data from post sync circles are complete before executing the
next command" - the operative word being previous!
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=90691
Signed-off-by: Chris Wilson <[email protected]>
Cc: Neil Roberts <[email protected]>
Cc: Kenneth Graunke <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_conditional_render.c | 6 | ||||
| -rw-r--r-- | src/mesa/drivers/dri/i965/brw_queryobj.c | 19 |
2 files changed, 11 insertions, 14 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_conditional_render.c b/src/mesa/drivers/dri/i965/brw_conditional_render.c index 6d37c3b6928..122a4ecc0f6 100644 --- a/src/mesa/drivers/dri/i965/brw_conditional_render.c +++ b/src/mesa/drivers/dri/i965/brw_conditional_render.c @@ -56,6 +56,12 @@ set_predicate_for_result(struct brw_context *brw, assert(query->bo != NULL); + /* Needed to ensure the memory is coherent for the MI_LOAD_REGISTER_MEM + * command when loading the values into the predicate source registers for + * conditional rendering. + */ + brw_emit_pipe_control_flush(brw, PIPE_CONTROL_FLUSH_ENABLE); + brw_load_register_mem64(brw, MI_PREDICATE_SRC0, query->bo, diff --git a/src/mesa/drivers/dri/i965/brw_queryobj.c b/src/mesa/drivers/dri/i965/brw_queryobj.c index d6b012c392e..a8e5ababba4 100644 --- a/src/mesa/drivers/dri/i965/brw_queryobj.c +++ b/src/mesa/drivers/dri/i965/brw_queryobj.c @@ -66,20 +66,11 @@ brw_write_timestamp(struct brw_context *brw, drm_intel_bo *query_bo, int idx) void brw_write_depth_count(struct brw_context *brw, drm_intel_bo *query_bo, int idx) { - uint32_t flags; - - flags = (PIPE_CONTROL_WRITE_DEPTH_COUNT | - PIPE_CONTROL_DEPTH_STALL); - - /* Needed to ensure the memory is coherent for the MI_LOAD_REGISTER_MEM - * command when loading the values into the predicate source registers for - * conditional rendering. - */ - if (brw->predicate.supported) - flags |= PIPE_CONTROL_FLUSH_ENABLE; - - brw_emit_pipe_control_write(brw, flags, query_bo, - idx * sizeof(uint64_t), 0, 0); + brw_emit_pipe_control_write(brw, + PIPE_CONTROL_WRITE_DEPTH_COUNT | + PIPE_CONTROL_DEPTH_STALL, + query_bo, idx * sizeof(uint64_t), + 0, 0); } /** |