This helps some viewperf subtests.
Only view XY culling is done. Edgeflags are always disabled with lines.
Reviewed-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13048>
This replaces vs_output_param_offset by vs_output_ps_input_cntl,
which is easier to use.
For geometry shaders, vs_output_ps_input_cntl is stored in the GS si_shader
structure, not gs_copy_shader. This requires that gs_copy_shader compilation
is finished before the GS main shader part, so that GS can initialize
vs_output_ps_input_cntl using the compiled GS copy shader.
output_semantic_to_slot becomes unused, so it's removed.
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12343>
GLES2 drivers are allowed to reject some GLSL constructs, like dynamic
loop bounds (which neither i915g nor vc4 can fully support), but gallium
hasn't had any way to trigger a link failure. Add a return msg to the
finalize_nir hook, which is called at the end of GLSL linking, and use
that. This means that some other callers of finalize need to do something
with the msg, and we (for now) just throw it away.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12218>
Do it when we bind shaders.
The advantages are:
- no need to memset the fields when any shader variant state is changed
(e.g. culling on/off)
- no need to recompute the fields every time that happens
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12656>
As part of adding support for inline uniforms in Iris, I was going to
add a finalize_nir hook. I went looking to see how other drivers use
the "optimize" parameter, and I discovered that *nobody* uses it at all.
v2: Fix typo in commit message. Noticed by Mike.
Reviewed-By: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12317>
If a shader has code like this:
uniform float timestamp;
...
if (timestamp > 0.0)
do_something()
And timestamp is modified each frame, we'll end up generating a new
variant per frame.
This commit introduces a hard limit on the number of variants we generate
for a single shader.
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/5121
Fixes: b7501184b9 ("radeonsi: implement inlinable uniforms")
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12138>
The GDS ordered append variant is unstable due to kernel and firmware bugs.
The unordered GDS variant isn't faster than the memory-based variant.
Only the memory-based variant is kept.
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11510>
The block only loads input VGPRs from LDS, and the next block uses them.
The entering condition is the same, even though the second block is
the next shader part beginning with the prolog.
Simply move the VGPR loads into the prolog.
This decreases the shader code size by 12 bytes.
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/11102>
When a blending mode producing "color = src * dst" is used and we
can determine that dst is 1, then the draw call can dropped completely.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/10979>
The kill_outputs logic uses our internal IO indices. Just add indices for
16-bit varyings. We don't have enough free indices to use, but we can reuse
the indices that GLES doesn't have. Those are all the legacy desktop GL
varyings.
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9051>
Changes:
- disallow NGG culling for GS, fast launch for tess using template args
(GS can't do NGG culling, tess can't do fast launch)
- skip checking current_rast_prim with tessellation
(bake the condition into ngg_cull_vert_threshold)
- use only 1 vertex count threshold for enabling NGG shader culling
to simplify it. I think it doesn't have a big impact. The threshold
computation depends on more parameters than just fast launch.
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8434>
It didn't do anything useful. GS doesn't use the other user SGPRs.
If we decrease the number of user SGPRs we declare for the GS prolog,
we can remove gfx9_prev_is_vs.
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8344>
LLVM expects that exec != 0 when entering loops and generates this code
that becomes an infinite loop if exec == 0:
BB5_1:
vcc_lo = (inverted terminating condition)
s_and_b32 vcc_lo, exec_lo, vcc_lo
s_cbranch_vccnz BB5_3 // jump if vcc != 0 (break statement)
// ... loop body ...
s_branch BB5_1
BB5_3:
For non-monolithic VS before TCS, VS before GS, and TES before GS,
we set exec = (thread enabledmask), which sets 0 for HS-only and GS-only
waves, causing the infinite loop condition above.
Fix it as follows:
- set exec = ~0 at the beginning
- wrap the whole shader (LS and ES) in a conditional block, so that HS-only
and GS-only waves jump over it and never enter such a loop
The TES before GS hang can be reproduced by gfxbench:
testfw_app --gfx egl -w 1920 -h 1080 --gl_api gles -t gl_tess
Fixes: 68d6d097f1 - radeonsi/gfx9: add GFX9 and VEGA10 enums
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8344>
Enable vrs2x2 coarse shading if flat shading as per
idea and guidance given by Marek.
is_flat_shading variable in struct si_shader_info is set
based on the data from gather_intrinsic_info() function
and struct si_state_rasterizer. If is_flat_shading_variable
is set, then in function si_emit_db_render_state() vrs2x2
shading is enabled in hardware.
v2: Fix review comments from Pierre-Eric. Code optimizations.
v3: Fix indentation style issue.
v4: Fix review comments from Marek. Fixed logical issue pointed
by Marek where info->is_flat_shading variable can be corrupted
and other code cleanup.
v5: Make the code compact as suggested by Pierre-Eric.
v6: Fix new review comments from Marek.
v7: use info->uses_interp_color variable fix from Marek.
v8: Fix coding style comment from Marek.
v9: Add uses_fbfetch_output check as suggested by Marek.
Signed-off-by: Yogesh Mohan Marimuthu <yogesh.mohanmarimuthu@amd.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8161>
Fixes:
- Sample shading now uses per-sample interpolation for colors if colors
are the only inputs. (this is the only case that was broken)
Optimizations:
- BC_OPTIMIZE (barycentric optimization) is now enabled with MSAA if colors
are qualified with both center and centroid. (BC_OPTIMIZE means that
the hardware skips initializing centroid (i,j) if they are equal to
center (i,j))
- If MSAA is disabled and at least 2 out of (center, centroid, sample) are
used by all inputs now including colors, center is forced for all inputs.
- If INTERP_MODE_COLOR is not used and the legacy GL shade model is flat,
the shader variant for flat shading is not generated.
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8225>
This increases performance for indexed triangle strips up to +100%.
In practice, it's limited by memory bandwidth and compute power,
so 256-bit memory bus and a lot of CUs are recommended.
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7681>
It can only be done if a TCS input is accessed without indirect indexing and
with gl_InvocationID as the vertex index, and the number of VS and TCS threads
is the same.
This eliminates LDS stores and loads for VS->TCS IO, reducing shader lifetime
and LDS traffic.
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7623>
Instead of:
if (VS) {
VS;
}
if (TCS) {
TCS;
}
Do this if the number of threads is the same in VS and TCS:
exec = enabled_threads;
VS;
TCS;
Skipping declare_vb_descriptor_input_sgprs is needed to match the VS return
values.
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7623>
This improves performance for uber shaders.
It must be enabled using the new driconf option.
The driver compiles the specialized shaders in another thread without stalls,
same as all other optimizations.
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7057>
If we store the position into LDS after we know the new thread ID,
we don't need to remember the old thread ID.
The culling code only needs W, X/W, Y/W, so we have to keep those.
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/7172>
Add a vertex count threshold into si_shader_selector to simplify
the draw_vbo code.
The new option is supposed to be used in 00-mesa-defaults.conf and should be
tweaked for best performance unlike the AMD_DEBUG experimental options.
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6948>
This removes type conversions from 16 bits to 32 bits in the main function
and then back to 16 bits in the epilog.
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6622>
Fixed-func shaders can contain the output, because their generator
doesn't consider the current primitive type into account.
Acked-by: Pierre-Eric Pelloux-Prayer <pierre-eric.pelloux-prayer@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6620>
Marek Olšák
Emma Anholt
Ian Romanick
Pierre-Eric Pelloux-Prayer
Yogesh mohan marimuthu