This seems to fix the GPU hangs caused by:
commit ed3190b3f3
Author: Marek Olšák <marek.olsak@amd.com>
Date: Sun Nov 13 18:41:43 2016 +0100
radeonsi: don't export ClipVertex and ClipDistance[] if clipping is disabled
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99219
Tested-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
We can hardcode all of the fields for swizzling in the geometry shader.
The advantage is that we use fewer descriptor slots and we no longer have to
update any of the (ring) descriptors when the geometry shader changes.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
A past commit added the ability to compile "optimized" shader variants
asynchronously (not stalling the app).
This commit builds upon that and adds what is basically a runtime shader
linker. If a VS output isn't used by the currently-bound PS, a new VS
compilation is started without that output. The new shader variant
is used when it's ready.
All apps using separate shader objects I've seen had unused VS outputs.
Eliminating unused/useless VS outputs also eliminates the corresponding
vertex attribute loads.
Tested-by: Edmondo Tommasina <edmondo.tommasina@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
This is the first user of optimized monolithic shader variants.
Cull distances can't be disabled by states.
Tested-by: Edmondo Tommasina <edmondo.tommasina@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
key->part.*: prolog and epilog flags only
key->as_{ls,es}: special flags
key->mono.*: flags for monolithic compilation only
Tested-by: Edmondo Tommasina <edmondo.tommasina@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
The hardware always treats the alpha channel as unsigned, so add a shader
workaround. This is rare enough that we'll just build a monolithic vertex
shader.
The SINT case cannot actually happen in OpenGL, but I've included it for
completeness since it's just a mix of the other cases.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Fixes GL45-CTS.geometry_shader.adjacency.adjacency_indiced_triangle_strip and
others.
This leaves the case of triangle strips with adjacency and primitive restarts
open. It seems that the only thing that cares about that is a piglit test.
Fixing this efficiently would be really involved, and I don't want to use the
hammer of degrading to software handling of indices because there may well
be software that uses this draw mode (without caring about the precise
rotation of triangles).
v2:
- skip the GS prolog entirely if workaround is not needed
- only check for TES (TES is always non-null when tessellation is used)
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
The copy shader only depends on the selector. This change avoids creating
separate code paths for monolithic vs. non-monolithic geometry shaders.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
These constant value VS PARAM exports:
- 0,0,0,0
- 0,0,0,1
- 1,1,1,0
- 1,1,1,1
can be loaded into PS inputs using the DEFAULT_VAL field, and the VS exports
can be removed from the IR to save export & parameter memory.
After LLVM optimizations, analyze the IR to see which exports are equal to
the ones listed above (or undef) and remove them if they are.
Targeted use cases:
- All DX9 eON ports always clear 10 VS outputs to 0.0 even if most of them
are unused by PS (such as Witcher 2 below).
- VS output arrays with unused elements that the GLSL compiler can't
eliminate (such as Batman below).
The shader-db deltas are quite interesting:
(not from upstream si-report.py, it won't be upstreamed)
PERCENTAGE DELTAS Shaders PARAM exports (affected only)
batman_arkham_origins 589 -67.17 %
bioshock-infinite 1769 -0.47 %
dirt-showdown 548 -2.68 %
dota2 1747 -3.36 %
f1-2015 776 -4.94 %
left_4_dead_2 1762 -0.07 %
metro_2033_redux 2670 -0.43 %
portal 474 -0.22 %
talos_principle 324 -3.63 %
warsow 176 -2.20 %
witcher2 1040 -73.78 %
----------------------------------------
All affected 991 -65.37 % ... 9681 -> 3353
----------------------------------------
Total 26725 -10.82 % ... 58490 -> 52162
v2: treat Undef as both 0 and 1
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com> (v1)
Tested-by: Edmondo Tommasina <edmondo.tommasina@gmail.com> (v1)
The table was copied from the Vulkan driver. The comment lines are as long
as the table for cosmetic reasons.
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
This is a serious performance fix. Discovered by luck.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94354
Cc: 12.0 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
radeonsi no longer supports pixel shaders without interpolation optimizations,
which led to assertion failures in si_shader_ps when running shader-db.
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Heaven and Valley write gl_SampleMask and not Z.
Use 16_ABGR instead of 32_ABGR if Z isn't written.
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
This cuts down the overhead of si_dump_shader when ddebug is capturing
shader logs, which is done for every draw call unconditionally (that's
quite a lot of work for a draw call).
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Since commit d938b8c, the sample locations are no longer set unconditionally,
so we need to set the atom to dirty on all chips, not just Polaris.
Cc: 12.0 <mesa-stable@lists.freedesktop.org>
Adds a second optional cleanup callback, called after the fence is
signaled. This is needed if, for example, the queue has the last
reference to the object that embeds the util_queue_fence. In this
case we cannot drop the ref in the main callback, since that would
result in the fence being destroyed before it is signaled.
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Otherwise, shader dumps can become interleaved and unusable.
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
We only have to stay single-threaded when debug output must be synchronous.
This yields better parallelism in shader-db runs for me.
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Unlike SC, the small primitive filter does not automatically use center
locations in 1xAA mode, so this is needed to avoid artifacts caused by
the small primitive filter discarding triangles that it shouldn't.
As a side effect of how the effective number of samples is now calculated,
this patch also avoids submitting the sample locations for line/poly smoothing
when they're not really needed.
Cc: 12.0 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Main shader parts and geometry shaders are compiled asynchronously
by util_queue. si_create_shader_selector doesn't wait and returns.
si_draw_vbo(si_shader_select) waits for completion.
This has the best effect when shaders are compiled at app-loading time.
It doesn't help much for shaders compiled on demand, even though
VS+PS compilation should take as much as time as the bigger one of the two.
If an app creates more shaders, at most 4 threads will be used to compile
them.
Debug output disables this for shader stats to be printed in the correct
order.
(We could go even further and build variants asynchronously too, then emit
draw calls without waiting and emit incomplete shader states, then force IB
chaining to give the compiler more time, then sync the compilation at the IB
flush and patch the IB with correct shader states. This is great for
compilation before draw calls, but there are some difficulties such as
scratch and tess states requiring the compiler output, and an on-disk shader
cache will likely be a much better and simpler solution.)
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
