This has got a bit out of control with more and more parameters added.
Worse, whenever something in there changes all callees have to be updated
for that, even though they don't really do much with any parameter in there
except pass it on to the actual sampling function.
Hence simply put almost everything into a struct. Also instead of relying
on some arguments being NULL, be explicit and set this in a key (which is
just reused for function generation for simplicity). (The code still relies
on them being NULL in the end for now.)
Technically there is a minimal functional change here for shadow sampling:
if shadow sampling is done is now determined explicitly by the texture
function (either sample_c or the gl-style tex func inherit this from target)
instead of the static texture state. These two should always match, however.
Otherwise, it should generate all the same code.
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
This cleans up more instructions generated by uniform array indexing
multiplies.
total instructions in shared programs: 39989 -> 39961 (-0.07%)
instructions in affected programs: 896 -> 868 (-3.12%)
This cleans up some pointless operations generated by the in-driver mul24
lowering (commonly generated by making a vec4 index for a matrix in a
uniform array).
I could fill in other operations, but pretty much anything else ought to
be getting handled at the NIR level, I think.
total uniforms in shared programs: 13423 -> 13421 (-0.01%)
uniforms in affected programs: 346 -> 344 (-0.58%)
Previously, the ctx->Const.ForceGLSLVersion setting only worked if
the shader lacked a #version directive. Now, the ForceGLSLVersion
setting will override the #version directive too.
This change should be safe since it should be rare to have an app
that has a mix of shader versions and we only wanted to override
the #version for shaders which lacked the #version directive.
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
The hardware just uses the low 24 lines, saving us an AND to drop the high
bits.
total uniforms in shared programs: 13433 -> 13423 (-0.07%)
uniforms in affected programs: 356 -> 346 (-2.81%)
total instructions in shared programs: 40003 -> 39989 (-0.03%)
instructions in affected programs: 910 -> 896 (-1.54%)
GLSL ES 3.00 spec, 4.3.10 (Linking of Vertex Outputs and Fragment Inputs),
page 45 says the following:
"The type of vertex outputs and fragment input with the same name must match,
otherwise the link command will fail. The precision does not need to match.
Only those fragment inputs statically used (i.e. read) in the fragment shader
must be declared as outputs in the vertex shader; declaring superfluous vertex
shader outputs is permissible."
[...]
"The term static use means that after preprocessing the shader includes at
least one statement that accesses the input or output, even if that statement
is never actually executed."
And it includes a table with all the possibilities.
Similar table or content is present in other GLSL specs: GLSL 4.40, GLSL 1.50,
etc but for more stages (vertex and geometry shaders, etc).
This patch detects that case and returns a link error. It fixes the following
dEQP test:
dEQP-GLES3.functional.shaders.linkage.varying.rules.illegal_usage_1
However, it adds a new regression in piglit because the test hasn't a
vertex shader and it checks the link status.
bin/glslparsertest \
tests/spec/glsl-1.50/compiler/gs-also-uses-smooth-flat-noperspective.geom pass \
1.50 --check-link
This piglit test is wrong according to the spec wording above, so if this patch
is merged it should be updated.
Signed-off-by: Samuel Iglesias Gonsalvez <siglesias@igalia.com>
Reviewed-by: Ben Widawsky <ben@bwidawsk.net>
Fixes a crash in genymotion with several threads compiling shaders
concurrently.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89746
Cc: 10.5 <mesa-stable@lists.freedesktop.org>
Reviewed-by: Tom Stellard <thomas.stellard@amd.com>
Correct error with commit 151fb1e where assert was renamed
to unreachable without removing ! from string argument.
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Ilia Mirkin <imirkin@alum.mit.edu>
This does not (yet) support different coordinate origins, so the tests
still fail due to fbo flipping.
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
This appears to need the A2XX version of the point list, so select it at
draw time if necessary.
Experimentally, always using the A2XX version causes hangs when PSIZE
isn't actually emitted.
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
The division is probably a holdover from the days when the fixed point
inline functions generated by headergen were broken.
Also reduce the maximum point size to 4092 (vs 4096), which is what the
blob does.
Cc: "10.4 10.5" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
The SZ2 field contains the layer size of a lower miplevel. It only
contains 4 bits, which limits the maximum layer size it can describe. In
situations where the next miplevel would be too big, the hardware
appears to keep minifying the size until it hits one of that size.
Unfortunately the hardware's ideas about sizes can differ from
freedreno's which can still lead to issues. Minimize those by stopping
to minify as soon as possible.
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Cc: "10.4 10.5" <mesa-stable@lists.freedesktop.org>
These are nir_cf_nodes, not ALU instructions.
Also, use unreachable() to preempt said review feedback.
v2: Do it right (thanks Ilia).
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
Everything is already in place; we simply have to take the scalar code
generation path. This gives us SIMD8 VS programs, instead of SIMD4x2.
v2: Rebase on the patch that drops brw->gen >= 8.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
I need to use this in brw_vec4.cpp, so it can't be static anymore.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Use prog_to_nir where we would normally call glsl_to_nir, handle program
parameter lists, and skip a few things that don't exist.
Using NIR generates much better shader code than Mesa IR, since we get
real optimizations, as opposed to prog_optimize:
total instructions in shared programs: 314007 -> 279892 (-10.86%)
instructions in affected programs: 285173 -> 251058 (-11.96%)
helped: 2001
HURT: 67
GAINED: 4
LOST: 7
v2: Change early return in nir_setup_uniforms to if/else (Jordan).
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
prog->nir will generate fsub opcodes, but i965 doesn't implement them.
We may as well lower them at the NIR level, since it's trivial to do.
Suggested by Connor Abbott.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Shamelessly ripped off from Eric Anholt's tgsi_to_nir pass.
This is not built on SCons, like the rest of NIR.
v2:
- Delete redundant c->s, c->impl, and c->cf_node_list pointers (Ken)
- Use nir_builder directly instead of ptn_compile in more places (Ken)
- Drop 'struct' keyword in front of nir_builder (ken)
- Add a file level Doxygen comment (Ken)
- Use scalar constants instead of splatting (Eric)
- Use nir_builder helpers for constants, moves, and swizzles (Connor)
v3: Minor indentation improvements.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Eric Anholt <eric@anholt.net>
These will be useful for prog->nir and tgsi->nir.
v2: Don't forget to mark nir_swizzle as inline (Eric).
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Both prog->nir and tgsi->nir will want to use these.
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
The PMA depth stall must be enabled (optimization turned off) under certain
circumstances on gen8. This was supposedly fixed for Gen9, which means we do not
need to check, or toggle the state. The hardware is supposed to enable the
hardware optimization by default, unlike BDW, so we also don't need to set it at
init. For whatever reason this improves stability on ETQW with the bug mentioned
below.
References: https://bugs.freedesktop.org/show_bug.cgi?id=89039 (doesn't fix)
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Tested-by: Anuj Phogat <anuj.phogat@intel.com>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Recomendation [sic] is to set this field to 1 always. Programming it to default
value of 0, may have -ve impact on performance for MSAA WLs.
Another don't suck bit which needs to get set.
The patch wasn't as well tested as I would have liked, primarily I don't have
perf numbers for it, but it's getting to a point where it is in danger of being
lost.
v2: v1 was a mix of two patches. Since 0x7004 is masked, we only need to set it
once at initialization and make sure the pma workaround doesn't set the mask bit
(which it doesn't).
Move LRI to init gpu state (Ken)
Add a comment.
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Anuj Phogat <anuj.phogat@gmail.com>
These functions looked quite complicated, even though what they actually did
was trivial (ever since we dropped swizzled rendering). Also drop lookup of
format block per bytes done for each block, and do it once per scene instead.
This improves everybody's favorite "benchmark" by 3% or so, though
lp_rast_shade_quads_all() which calls this shows up still quite high for a
function which does little more than call the jit function.
(This would most likely be much better handled by the jit function itself,
the strides are passed through anyway already, though for being able to
handle layers it would definitely add some complexity.)
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
When using the texel fetch functions rather than ordinary texturing,
the arguments are all int vecs instead of float vecs, not to mention
the actual function would look completely different. Hence this must
be included in the texture function name (which serves as the key)
otherwise things crash badly when a shader accesses the same texture
and sampler unit with both txf/ld and ordinary texturing instructions
with otherwise matching keys.
Multiply operations can have a post-factor on them, which other ops
don't support. Only perform the peephole optimizations when there is no
post-factor involved.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89758
Cc: "10.4 10.5" <mesa-stable@lists.freedesktop.org>
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
There are issues with inlining everything, most notably llvm will use much
more memory (and be slower) when compiling. Ideally we'd probably use
functions for shader functions too but texture sampling usually is responsible
for quite some IR (it can easily reach 80% of total IR instructions) so this
seems like a good start.
This still generates a different function for all different combinations just
like before, however it is possible llvm is missing some optimization
opportunities - it is believed though such opportunities should be somewhat
rare, but at least for now it can still be switched off (at compile time only).
It should probably make compiled code also smaller because the same function
should be used for different variants in the same module (so for the
opaque/partial or linear/elts variants).
No piglit change (though it does indeed speed up unrealistic tests like
fp-indirections2 by a factor of 30 or so).
Has a small negative performance impact in openarena - I suspect this could
be fixed by running some IPO passes (despite the private linkage, llvm right
now does NO optimization at all wrt anything going past the call, even if
there's just one caller - so things like values stored before the call and then
always written by the function etc. will not be optimized away, nor will dead
arguments (which we mostly shouldn't have) be eliminated, always constant
arguments promoted etc.).
v2: use proper return values instead of pointer function arguments.
llvm supports aggregate return values, which do wonders here eliminating
unnecessary stack variables - everything in fact will be returned in registers
even without any IPO optimizations. It makes the code simpler too.
With this I could not measure a peformance impact in openarena any longer
(though since there's still no constant value propagation etc. into the tex
functions this does not mean it couldn't have a negative impact elsewhere).
v3: fix some minor issues suggested by Jose, and do disassembly (and the
profiling) without hacks.
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
The callbacks used for getting the dynamic texture/sampler state were using
the jit_context from the generated jit function. This works just fine, however
that way it's impossible to generate separate functions for texture sampling,
as will be done in the next commit. Hence, pass this pointer through all
interfaces so it can be passed to a separate function (technically, it would
probably be possible to extract this pointer from the current function instead,
but this feels hacky and would probably require some more hacks if we'd use
real functions instead of inlining all shader functions at some point).
There should be no difference in the generated code for now.
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
The data in memory is in big endian format and needs to be converted
into CPU byte order. So the patch actually reversed what needs to be done.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Matt Turner <mattst88@gmail.com>
The CUBE_ARRAY case uses r[4]. Make sure that the stack variable is
there.
Noticed by Coverity.
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Does not appear to be used in tree. Coverity spotted some errors in the
bitmask stuff, but the whole thing appears to be unused.
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Brian Paul <brianp@vmware.com>
Fixes the recently-sent gl-2.0-vertex-const-attr piglit test. Makes sure
to revalidate arrays when only the current attribute has been updated
via glVertexAttrib*.
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89754
Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Cc: "10.4 10.5" <mesa-stable@lists.freedesktop.org>
Our fragment program backend implements support for TXP directly, and
there's no NIR lowering pass to remove the projection. When we switch
fragment program support over to NIR, we need to support it somehow.
It's easy enough to support directly.
v2: Split out offset/tex_offset rename (requested by Jordan).
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
fs_visitor::nir_emit_texture() created an fs_reg variable called offset,
which shadowed the offset() helper function in brw_ir_fs.h.
Rename the variable to tex_offset so we can still call offset().
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Roland Scheidegger
Jose Fonseca
Michel Dänzer
Eric Anholt
Brian Paul
Samuel Iglesias Gonsalvez
Tapani Pälli
Emil Velikov
Ilia Mirkin
Kenneth Graunke
Ben Widawsky
Timothy Arceri
Jan Vesely
Christian König
Dave Airlie