ci/piglit: Skip glx_arb_sync_control@timing.* on all systems.

The test involves timestamping to figure out how long a swap actually
takes, but if anything ends up rescheduling the process you can end up
spuriously failing.  I could easily reproduce flakiness by just running a
loop accessing the filesystem in parallel with a loop running the test.
So, it's certainly not usable on a CI system with other piglit tests
running in parallel, and we don't want to run it if it's going to just
produce flake noise.

Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11333>

.gitlab-ci/piglit/piglit-all-skips.txt

@@ -1,2 +1,6 @@
 # WGL is Windows-only
 wgl@.*
+
+# These are sensitive to CPU timing, and would need to be run in isolation
+# on the system rather than in parallel with other tests.
+glx@glx_arb_sync_control@timing.*

src/broadcom/ci/piglit-v3d-rpi4-flakes.txt

@@ -1,16 +1,4 @@
 glx@glx_arb_sync_control@swapbuffersmsc-divisor-zero
-glx@glx_arb_sync_control@timing
-glx@glx_arb_sync_control@timing -divisor 1
-glx@glx_arb_sync_control@timing -divisor 2
-glx@glx_arb_sync_control@timing -fullscreen -divisor 1
-glx@glx_arb_sync_control@timing -fullscreen -divisor 2
-glx@glx_arb_sync_control@timing -fullscreen -msc-delta 1
-glx@glx_arb_sync_control@timing -fullscreen -msc-delta 2
-glx@glx_arb_sync_control@timing -msc-delta 1
-glx@glx_arb_sync_control@timing -msc-delta 2
-glx@glx_arb_sync_control@timing -waitformsc -divisor 1
-glx@glx_arb_sync_control@timing -waitformsc -divisor 2
-glx@glx_arb_sync_control@timing -waitformsc -msc-delta 1
 glx@glx_arb_sync_control@waitformsc
 spec@!opengl 1.1@depthstencil-default_fb-drawpixels-24_8 samples=4
 spec@!opengl 1.1@depthstencil-default_fb-drawpixels-float-and-ushort samples=4

src/broadcom/ci/piglit-vc4-rpi3-flakes.txt

@@ -1,14 +1,4 @@
 glx@glx-multi-window-single-context
-glx@glx_arb_sync_control@timing
-glx@glx_arb_sync_control@timing -divisor 1
-glx@glx_arb_sync_control@timing -divisor 2
-glx@glx_arb_sync_control@timing -fullscreen -divisor 1
-glx@glx_arb_sync_control@timing -fullscreen -divisor 2
-glx@glx_arb_sync_control@timing -fullscreen -msc-delta 2
-glx@glx_arb_sync_control@timing -msc-delta 2
-glx@glx_arb_sync_control@timing -waitformsc -divisor 1
-glx@glx_arb_sync_control@timing -waitformsc -divisor 2
-glx@glx_arb_sync_control@timing -waitformsc -msc-delta 2
 shaders@glsl-vs-loop
 shaders@glsl-vs-loop-nested
 spec@arb_framebuffer_srgb@blit renderbuffer srgb single_sampled enabled clear

src/gallium/drivers/freedreno/ci/piglit-freedreno-a530-fails.txt

@@ -9,18 +9,6 @@ glx@glx-visuals-stencil -pixmap,Crash
 glx@glx_arb_create_context_es2_profile@invalid opengl es version,Fail
 glx@glx_arb_create_context_robustness@invalid reset notification strategy,Fail
 glx@glx_arb_sync_control@swapbuffersmsc-divisor-zero,Fail
-glx@glx_arb_sync_control@timing -divisor 1,Fail
-glx@glx_arb_sync_control@timing -divisor 2,Fail
-glx@glx_arb_sync_control@timing -fullscreen -divisor 1,Fail
-glx@glx_arb_sync_control@timing -fullscreen -divisor 2,Fail
-glx@glx_arb_sync_control@timing -fullscreen -msc-delta 1,Fail
-glx@glx_arb_sync_control@timing -fullscreen -msc-delta 2,Fail
-glx@glx_arb_sync_control@timing -msc-delta 1,Fail
-glx@glx_arb_sync_control@timing -msc-delta 2,Fail
-glx@glx_arb_sync_control@timing -waitformsc -divisor 1,Fail
-glx@glx_arb_sync_control@timing -waitformsc -divisor 2,Fail
-glx@glx_arb_sync_control@timing -waitformsc -msc-delta 1,Fail
-glx@glx_arb_sync_control@timing -waitformsc -msc-delta 2,Fail
 glx@glx_arb_sync_control@waitformsc,Fail
 glx@glx_ext_import_context@free context,Fail
 glx@glx_ext_import_context@get context id,Fail

src/gallium/drivers/freedreno/ci/piglit-freedreno-a630-fails.txt

@@ -1,9 +1,5 @@
 glx@glx_arb_create_context_es2_profile@invalid opengl es version,Fail
 glx@glx_arb_create_context_robustness@invalid reset notification strategy,Fail
-glx@glx_arb_sync_control@timing -fullscreen -divisor 2,Fail
-glx@glx_arb_sync_control@timing -fullscreen -msc-delta 1,Fail
-glx@glx_arb_sync_control@timing -waitformsc -divisor 1,Fail
-glx@glx_arb_sync_control@timing -waitformsc -msc-delta 2,Fail
 glx@glx-copy-sub-buffer samples=2,Fail
 glx@glx_ext_import_context@free context,Fail
 glx@glx_ext_import_context@get context id,Fail

src/gallium/drivers/freedreno/ci/piglit-freedreno-a630-flakes.txt

@@ -1,16 +1,4 @@
 glx@glx_arb_sync_control@swapbuffersmsc-divisor-zero
-glx@glx_arb_sync_control@timing -divisor 1
-glx@glx_arb_sync_control@timing -divisor 2
-glx@glx_arb_sync_control@timing -msc-delta 1
-glx@glx_arb_sync_control@timing -msc-delta 2
-glx@glx_arb_sync_control@timing -fullscreen -divisor 1
-glx@glx_arb_sync_control@timing -fullscreen -divisor 2
-glx@glx_arb_sync_control@timing -fullscreen -msc-delta 1
-glx@glx_arb_sync_control@timing -fullscreen -msc-delta 2
-glx@glx_arb_sync_control@timing -waitformsc -divisor 1
-glx@glx_arb_sync_control@timing -waitformsc -divisor 2
-glx@glx_arb_sync_control@timing -waitformsc -msc-delta 1
-glx@glx_arb_sync_control@timing -waitformsc -msc-delta 2
 glx@glx_arb_sync_control@waitformsc
 glx@glx-copy-sub-buffer.*
 glx@glx-swap-copy

src/gallium/drivers/i915/ci/piglit-i915-g33-fails.txt

@@ -93,18 +93,6 @@ glx@glx_arb_sync_control@swapbuffersmsc-divisor-zero,Fail
 glx@glx_arb_sync_control@swapbuffersmsc-return,Fail
 glx@glx_arb_sync_control@swapbuffersmsc-return swap_interval 0,Fail
 glx@glx_arb_sync_control@swapbuffersmsc-return swap_interval 1,Fail
-glx@glx_arb_sync_control@timing -divisor 1,Fail
-glx@glx_arb_sync_control@timing -divisor 2,Fail
-glx@glx_arb_sync_control@timing -fullscreen -divisor 1,Fail
-glx@glx_arb_sync_control@timing -fullscreen -divisor 2,Fail
-glx@glx_arb_sync_control@timing -fullscreen -msc-delta 1,Fail
-glx@glx_arb_sync_control@timing -fullscreen -msc-delta 2,Fail
-glx@glx_arb_sync_control@timing -msc-delta 1,Fail
-glx@glx_arb_sync_control@timing -msc-delta 2,Fail
-glx@glx_arb_sync_control@timing -waitformsc -divisor 1,Fail
-glx@glx_arb_sync_control@timing -waitformsc -divisor 2,Fail
-glx@glx_arb_sync_control@timing -waitformsc -msc-delta 1,Fail
-glx@glx_arb_sync_control@timing -waitformsc -msc-delta 2,Fail
 glx@glx_arb_sync_control@waitformsc,Fail
 glx@glx_ext_import_context@free context,Fail
 glx@glx_ext_import_context@get context id,Fail

src/gallium/drivers/iris/ci/piglit-iris-amly-fails.txt

@@ -32,14 +32,6 @@ glx@glx_arb_create_context_robustness@invalid reset notification strategy,Fail
 # Version = 3.3
 glx@glx_arb_create_context_es2_profile@invalid opengl es version,Fail
 
-# piglit: error: Test timed out.
-glx@glx_arb_sync_control@timing -divisor 1,Fail
-glx@glx_arb_sync_control@timing -fullscreen -divisor 1,Fail
-glx@glx_arb_sync_control@timing -fullscreen -divisor 2,Fail
-glx@glx_arb_sync_control@timing -fullscreen -msc-delta 1,Fail
-glx@glx_arb_sync_control@timing -msc-delta 2,Fail
-glx@glx_arb_sync_control@timing -waitformsc -msc-delta 1,Fail
-
 # Xorg has disabled indirect rendering contexts.
 glx@glx_ext_import_context@free context,Fail
 glx@glx_ext_import_context@get context id,Fail

src/gallium/drivers/iris/ci/piglit-iris-amly-flakes.txt

@@ -1,5 +1,3 @@
-glx@glx_arb_sync_control@timing.*
-
 # Some flaky tests found:
 #   spec@arb_query_buffer_object@qbo@query-GL_ANY_SAMPLES_PASSED-SYNC-GL_INT
 #   spec@arb_query_buffer_object@qbo@query-GL_GEOMETRY_SHADER_PRIMITIVES_EMITTED-ASYNC-GL_UNSIGNED_INT64_ARB

src/gallium/drivers/radeonsi/ci/piglit-radeonsi-stoney-flakes.txt

@@ -1 +0,0 @@
-glx@glx_arb_sync_control@timing -fullscreen -divisor 2