This and the previous clip_regs commit decrease IB sizes and the number of
si_update_shaders invocations as follows:
IB size si_update_shaders calls
Borderlands 2 -10% -27%
Deus Ex: MD -5% -11%
Talos Principle -8% -30%
v2: always dirty cb_render_state in set_framebuffer_state
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
We can use a union in si_shader_key::mono.
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Heaven LDS usage for LS+HS is below. The masks are "outputs_written"
for LS and HS. Note that 32K is the maximum size.
Before:
heaven_x64: ls=1f1 tcs=1f1, lds=32K
heaven_x64: ls=31 tcs=31, lds=24K
heaven_x64: ls=71 tcs=71, lds=28K
After:
heaven_x64: ls=3f tcs=3f, lds=24K
heaven_x64: ls=7 tcs=7, lds=13K
heaven_x64: ls=f tcs=f, lds=17K
All other apps have a similar decrease in LDS usage, because
the "outputs_written" masks are similar. Also, most apps don't write
POSITION in these shader stages, so there is room for improvement.
(tight per-component input/output packing might help even more)
It's unknown whether this improves performance.
Tested-by: Edmondo Tommasina <edmondo.tommasina@gmail.com>
Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
LS is merged into TCS. If there is no TCS, LS is merged into fixed-func
TCS. The problem is the fixed-func TCS was ignored by scratch update
functions, so LS didn't have the scratch buffer set up.
Note that Mesa 17.1 doesn't have merged shaders.
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
If we enqueue too many jobs and destroy the GL context, it may take
several seconds before the jobs finish. Just drop them instead.
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
What we care about is whether PrimID is used while tessellation is
enabled; whether it's used in TCS/TES or further down the pipeline is
irrelevant.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This builds on commit 0549ea15ec ("radeonsi: fix primitive ID in
fragment shader when using tessellation").
Fixes piglit
arb_tessellation_shader/execution/gs-primitiveid-instanced.shader_test
Cc: 17.1 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
By keeping track of fewer generics, everything can fit into 64 bits.
Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
OpenGL uses at most 32 generic outputs/inputs in any stage, and they always
have a shader IO index and therefore fit into the outputs_written/
inputs_read/kill_outputs fields.
However, Nine uses semantic indices more liberally. We support that
in VS-PS pipelines, except that the optimization of killing outputs
must be skipped.
Tested-by: Dieter Nützel <Dieter@nuetzel-hh.de>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Make it a bit clearer that the index spaces are logically seperate by
having them defined in different functions.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
In a VS->TCS->TES->PS pipeline, the primitive ID is read from TES exports,
so it is as if TES were using the primitive ID.
Specifically, this fixes a bug where the primitive ID is not reset at
the start of a new instance.
Cc: mesa-stable@lists.freedesktop.org
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Picked from a different branch. When we stop using the scratch patching,
this function will not be called.
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
This removes s_load_dword latency for tess rings.
We need just 1 SGPR for the address if we use 64K alignment. The final asm
for recreating the descriptor is:
// s2 is (address >> 16)
s_mov_b32 s3, 0
s_lshl_b64 s[4:5], s[2:3], 16
s_mov_b32 s6, -1
s_mov_b32 s7, 0x27fac
v2: bitcast the descriptor type from v2i64 to v4i32
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
The use of PrimID in the pixel shader is too rare to deserve such
a sizable support code.
The initial idea of the VS epilog was to move the clipping code there and
remove it based on states, but optimized variants are now used to do that
and are easier to support, so the VS epilog has turned out to be not so
useful.
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
The 2nd shader of merged shaders should take a reference of the 1st shader.
The next commit will do that.
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
This code can be shared by radv, we bump the max to
VARYING_SLOT_MAX here, but that shouldn't have too
much fallout.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Signed-off-by: Dave Airlie <airlied@redhat.com>
