[Mesa-dev] [PATCH 14/22] nir: add legal bit_sizes to intrinsics
Karol Herbst
kherbst at redhat.com
Thu Nov 22 00:30:01 UTC 2018
On Wed, Nov 21, 2018 at 10:58 PM Jason Ekstrand <jason at jlekstrand.net> wrote:
>
>
>
> On Tue, Nov 13, 2018 at 9:49 AM Karol Herbst <kherbst at redhat.com> wrote:
>>
>> With OpenCL some system values match the address bits, but in GLSL we also
>> have some system values being 64 bit.
>>
>> With this it is possible to adjust the builder functions so that depending
>> on the bit_sizes the correct bit_size is used or an additional argument is
>> added in case of multiple possible values.
>>
>> Also this allows for further validation
>>
>> Signed-off-by: Karol Herbst <kherbst at redhat.com>
>> ---
>> src/compiler/nir/nir.h | 3 +++
>> src/compiler/nir/nir_intrinsics.py | 15 ++++++++++-----
>> src/compiler/nir/nir_intrinsics_c.py | 6 +++++-
>> src/nouveau/meson.build | 25 +++++++++++++++++++++++++
>> 4 files changed, 43 insertions(+), 6 deletions(-)
>> create mode 100644 src/nouveau/meson.build
>>
>> diff --git a/src/compiler/nir/nir.h b/src/compiler/nir/nir.h
>> index be4f64464f9..3855eb0b582 100644
>> --- a/src/compiler/nir/nir.h
>> +++ b/src/compiler/nir/nir.h
>> @@ -1283,6 +1283,9 @@ typedef struct {
>>
>> /** semantic flags for calls to this intrinsic */
>> nir_intrinsic_semantic_flag flags;
>> +
>> + /** bitfield of legal bit sizes */
>> + unsigned bit_sizes : 7;
>> } nir_intrinsic_info;
>>
>> extern const nir_intrinsic_info nir_intrinsic_infos[nir_num_intrinsics];
>> diff --git a/src/compiler/nir/nir_intrinsics.py b/src/compiler/nir/nir_intrinsics.py
>> index ec3049ca06d..9ada44aad8a 100644
>> --- a/src/compiler/nir/nir_intrinsics.py
>> +++ b/src/compiler/nir/nir_intrinsics.py
>> @@ -32,7 +32,7 @@ class Intrinsic(object):
>> NOTE: this must be kept in sync with nir_intrinsic_info.
>> """
>> def __init__(self, name, src_components, dest_components,
>> - indices, flags, sysval):
>> + indices, flags, sysval, bit_sizes):
>> """Parameters:
>>
>> - name: the intrinsic name
>> @@ -45,6 +45,7 @@ class Intrinsic(object):
>> - indices: list of constant indicies
>> - flags: list of semantic flags
>> - sysval: is this a system-value intrinsic
>> + - bit_sizes: allowed dest bit_sizes
>> """
>> assert isinstance(name, str)
>> assert isinstance(src_components, list)
>> @@ -58,6 +59,8 @@ class Intrinsic(object):
>> if flags:
>> assert isinstance(flags[0], str)
>> assert isinstance(sysval, bool)
>> + if bit_sizes:
>> + assert isinstance(bit_sizes[0], int)
>>
>> self.name = name
>> self.num_srcs = len(src_components)
>> @@ -68,6 +71,7 @@ class Intrinsic(object):
>> self.indices = indices
>> self.flags = flags
>> self.sysval = sysval
>> + self.bit_sizes = bit_sizes
>>
>> #
>> # Possible indices:
>> @@ -120,10 +124,10 @@ CAN_REORDER = "NIR_INTRINSIC_CAN_REORDER"
>> INTR_OPCODES = {}
>>
>> def intrinsic(name, src_comp=[], dest_comp=-1, indices=[],
>> - flags=[], sysval=False):
>> + flags=[], sysval=False, bit_sizes=[]):
>> assert name not in INTR_OPCODES
>> INTR_OPCODES[name] = Intrinsic(name, src_comp, dest_comp,
>> - indices, flags, sysval)
>> + indices, flags, sysval, bit_sizes)
>>
>> intrinsic("nop", flags=[CAN_ELIMINATE])
>>
>> @@ -446,9 +450,10 @@ intrinsic("shared_atomic_fmin", src_comp=[1, 1], dest_comp=1, indices=[BASE])
>> intrinsic("shared_atomic_fmax", src_comp=[1, 1], dest_comp=1, indices=[BASE])
>> intrinsic("shared_atomic_fcomp_swap", src_comp=[1, 1, 1], dest_comp=1, indices=[BASE])
>>
>> -def system_value(name, dest_comp, indices=[]):
>> +def system_value(name, dest_comp, indices=[], bit_sizes=[32]):
>> intrinsic("load_" + name, [], dest_comp, indices,
>> - flags=[CAN_ELIMINATE, CAN_REORDER], sysval=True)
>> + flags=[CAN_ELIMINATE, CAN_REORDER], sysval=True,
>> + bit_sizes=bit_sizes)
>>
>> system_value("frag_coord", 4)
>> system_value("front_face", 1)
>> diff --git a/src/compiler/nir/nir_intrinsics_c.py b/src/compiler/nir/nir_intrinsics_c.py
>> index ac45b94d496..d0f1c29fa39 100644
>> --- a/src/compiler/nir/nir_intrinsics_c.py
>> +++ b/src/compiler/nir/nir_intrinsics_c.py
>> @@ -1,3 +1,5 @@
>> +from functools import reduce
>> +import operator
>>
>> template = """\
>> /* Copyright (C) 2018 Red Hat
>> @@ -45,6 +47,7 @@ const nir_intrinsic_info nir_intrinsic_infos[nir_num_intrinsics] = {
>> },
>> % endif
>> .flags = ${"0" if len(opcode.flags) == 0 else " | ".join(opcode.flags)},
>> + .bit_sizes = ${reduce(operator.or_, opcode.bit_sizes, 0)},
>
>
> If we're going to go to all the effort to add these bit sizes to nir_intrinsic_infos, we should make nir_validate validate them.
>
> Also, I'm not sure this line does what you want if bit_sizes = []. We could choose the 0 means anything goes convention or, since it's a bitfield, we could do 0x78 when it's allowed to be anything. Or we could just change the default in python to [8, 16, 32, 64]. In any case, we should do something sensible.
>
> --Jason
>
yeah.. not quite sure how we want to deal with those, as most will
still be 32 bit only in hardware. And it makes no sense to require 64
bit operations if its really just a 32 bit value. The only cases where
it really matters for the "Work-Item Built-In Functions" in CL and we
need special lowering for those anyway due to the offset stuff which
CL requires. So we would end up loading 32 bit system values + 64 bit
offset in relevant cases, but then we again end up with the offset
being a valid 64 bit system value :/
I was quite sure I put some 32 bit default in this patch somewhere
though. Maybe I dropped that after some rebase.
>>
>> },
>> % endfor
>> };
>> @@ -54,6 +57,7 @@ from nir_intrinsics import INTR_OPCODES
>> from mako.template import Template
>> import argparse
>> import os
>> +import functools
>>
>> def main():
>> parser = argparse.ArgumentParser()
>> @@ -64,7 +68,7 @@ def main():
>>
>> path = os.path.join(args.outdir, 'nir_intrinsics.c')
>> with open(path, 'wb') as f:
>> - f.write(Template(template, output_encoding='utf-8').render(INTR_OPCODES=INTR_OPCODES))
>> + f.write(Template(template, output_encoding='utf-8').render(INTR_OPCODES=INTR_OPCODES, reduce=reduce, operator=operator))
>>
>> if __name__ == '__main__':
>> main()
>> diff --git a/src/nouveau/meson.build b/src/nouveau/meson.build
>> new file mode 100644
>> index 00000000000..5c265f207ab
>> --- /dev/null
>> +++ b/src/nouveau/meson.build
>> @@ -0,0 +1,25 @@
>> +# Copyright © 2018 Red Hat Corp.
>> +
>> +# Permission is hereby granted, free of charge, to any person obtaining a copy
>> +# of this software and associated documentation files (the "Software"), to deal
>> +# in the Software without restriction, including without limitation the rights
>> +# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
>> +# copies of the Software, and to permit persons to whom the Software is
>> +# furnished to do so, subject to the following conditions:
>> +
>> +# The above copyright notice and this permission notice shall be included in
>> +# all copies or substantial portions of the Software.
>> +
>> +# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
>> +# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
>> +# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
>> +# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
>> +# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
>> +# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
>> +# SOFTWARE.
>> +
>> +inc_nouveau = include_directories('.')
>> +
>> +if with_nouveau_vk
>> + subdir('vulkan')
>> +endif
>
>
> This hunk seems to be misplaced. :-)
>
>>
>> --
>> 2.19.1
>>
>> _______________________________________________
>> mesa-dev mailing list
>> mesa-dev at lists.freedesktop.org
>> https://lists.freedesktop.org/mailman/listinfo/mesa-dev
More information about the mesa-dev
mailing list