i965: Add script to gen code for OA counter queries
Avoiding lots of error prone boilerplate and easing our ability to add + maintain support for multiple OA performance counter queries for each generation: This adds a python script to generate code for building up performance_queries from the metric sets and counters described in brw_oa_hsw.xml as well as functions to normalize each counter based on the RPN expressions given. Although the XML file currently only includes a single metric set, the code generated assumes there could be many sets. The metrics as described in XML get translated into C structures which are registered in a brw->perfquery.oa_metrics_table hash table keyed by the GUID of the metric set in XML. v2: numerous python style improvements (Dylan) v3: Makefile.am fixups (Emil) v4: Pattern rule for codegen + orthogonal .c and .h rules (Robert) Signed-off-by: Robert Bragg <robert@sixbynine.org> Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Reviewed-by: Dylan Baker <dylan@pnwbakers.com> Reviewed-by: Emil Velikov <emil.velikov@collabora.com> Acked-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Robert Bragg
parent
f46e58e018
commit
e56550565e
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@ -76,7 +76,9 @@ noinst_LTLIBRARIES = \
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libi965_compiler.la \
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$(I965_PERGEN_LIBS)
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libi965_dri_la_SOURCES = $(i965_FILES)
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libi965_dri_la_SOURCES = \
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$(i965_FILES) \
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$(i965_oa_GENERATED_FILES)
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libi965_dri_la_LIBADD = \
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$(top_builddir)/src/intel/common/libintel_common.la \
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$(top_builddir)/src/intel/isl/libisl.la \
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@ -93,7 +95,9 @@ BUILT_SOURCES = $(i965_compiler_GENERATED_FILES)
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CLEANFILES = $(BUILT_SOURCES)
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EXTRA_DIST = \
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brw_nir_trig_workarounds.py
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brw_nir_trig_workarounds.py \
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brw_oa_hsw.xml \
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brw_oa.py
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TEST_LIBS = \
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libi965_compiler.la \
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@ -170,3 +174,14 @@ test_eu_validate_SOURCES = \
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test_eu_validate_LDADD = \
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$(top_builddir)/src/gtest/libgtest.la \
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$(TEST_LIBS)
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BUILT_SOURCES += $(i965_oa_GENERATED_FILES)
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# Note: we avoid using a multi target rule here and outputting both the
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# .c and .h files in one go so we don't hit problems with parallel
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# make and multiple invocations of the same script trying to write
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# to the same files.
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brw_oa_%.h: brw_oa_%.xml brw_oa.py Makefile.am
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$(PYTHON2) $(PYTHON_FLAGS) $(srcdir)/brw_oa.py --header=$(builddir)/brw_oa_$(*).h --chipset="$(*)" $(srcdir)/brw_oa_$(*).xml
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brw_oa_%.c: brw_oa_%.xml brw_oa.py Makefile.am
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$(PYTHON2) $(PYTHON_FLAGS) $(srcdir)/brw_oa.py --code=$(builddir)/brw_oa_$(*).c --chipset="$(*)" $(srcdir)/brw_oa_$(*).xml
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@ -262,3 +262,7 @@ i965_gen8_FILES = \
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i965_gen9_FILES = \
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genX_blorp_exec.c
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i965_oa_GENERATED_FILES = \
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brw_oa_hsw.h \
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brw_oa_hsw.c
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@ -0,0 +1,554 @@
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# Copyright (c) 2015-2017 Intel Corporation
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#
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# Permission is hereby granted, free of charge, to any person obtaining a
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# copy of this software and associated documentation files (the "Software"),
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# to deal in the Software without restriction, including without limitation
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# the rights to use, copy, modify, merge, publish, distribute, sublicense,
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# and/or sell copies of the Software, and to permit persons to whom the
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# Software is furnished to do so, subject to the following conditions:
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#
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# The above copyright notice and this permission notice (including the next
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# paragraph) shall be included in all copies or substantial portions of the
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# Software.
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#
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# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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# THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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# FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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# IN THE SOFTWARE.
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import argparse
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import os
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import sys
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import textwrap
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import xml.etree.cElementTree as et
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max_values = {}
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read_funcs = {}
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c_file = None
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_c_indent = 0
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def c(*args):
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if c_file:
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code = ' '.join(map(str,args))
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for line in code.splitlines():
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text = ''.rjust(_c_indent) + line
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c_file.write(text.rstrip() + "\n")
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# indented, but no trailing newline...
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def c_line_start(code):
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if c_file:
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c_file.write(''.rjust(_c_indent) + code)
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def c_raw(code):
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if c_file:
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c_file.write(code)
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def c_indent(n):
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global _c_indent
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_c_indent = _c_indent + n
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def c_outdent(n):
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global _c_indent
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_c_indent = _c_indent - n
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header_file = None
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_h_indent = 0
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def h(*args):
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if header_file:
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code = ' '.join(map(str,args))
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for line in code.splitlines():
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text = ''.rjust(_h_indent) + line
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header_file.write(text.rstrip() + "\n")
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def h_indent(n):
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global _c_indent
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_h_indent = _h_indent + n
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def h_outdent(n):
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global _c_indent
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_h_indent = _h_indent - n
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def emit_fadd(tmp_id, args):
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c("double tmp{0} = {1} + {2};".format(tmp_id, args[1], args[0]))
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return tmp_id + 1
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# Be careful to check for divide by zero...
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def emit_fdiv(tmp_id, args):
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c("double tmp{0} = {1};".format(tmp_id, args[1]))
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c("double tmp{0} = {1};".format(tmp_id + 1, args[0]))
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c("double tmp{0} = tmp{1} ? tmp{2} / tmp{1} : 0;".format(tmp_id + 2, tmp_id + 1, tmp_id))
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return tmp_id + 3
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def emit_fmax(tmp_id, args):
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c("double tmp{0} = {1};".format(tmp_id, args[1]))
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c("double tmp{0} = {1};".format(tmp_id + 1, args[0]))
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c("double tmp{0} = MAX(tmp{1}, tmp{2});".format(tmp_id + 2, tmp_id, tmp_id + 1))
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return tmp_id + 3
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def emit_fmul(tmp_id, args):
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c("double tmp{0} = {1} * {2};".format(tmp_id, args[1], args[0]))
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return tmp_id + 1
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def emit_fsub(tmp_id, args):
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c("double tmp{0} = {1} - {2};".format(tmp_id, args[1], args[0]))
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return tmp_id + 1
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def emit_read(tmp_id, args):
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type = args[1].lower()
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c("uint64_t tmp{0} = accumulator[query->{1}_offset + {2}];".format(tmp_id, type, args[0]))
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return tmp_id + 1
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def emit_uadd(tmp_id, args):
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c("uint64_t tmp{0} = {1} + {2};".format(tmp_id, args[1], args[0]))
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return tmp_id + 1
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# Be careful to check for divide by zero...
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def emit_udiv(tmp_id, args):
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c("uint64_t tmp{0} = {1};".format(tmp_id, args[1]))
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c("uint64_t tmp{0} = {1};".format(tmp_id + 1, args[0]))
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c("uint64_t tmp{0} = tmp{1} ? tmp{2} / tmp{1} : 0;".format(tmp_id + 2, tmp_id + 1, tmp_id))
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return tmp_id + 3
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def emit_umul(tmp_id, args):
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c("uint64_t tmp{0} = {1} * {2};".format(tmp_id, args[1], args[0]))
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return tmp_id + 1
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def emit_usub(tmp_id, args):
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c("uint64_t tmp{0} = {1} - {2};".format(tmp_id, args[1], args[0]))
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return tmp_id + 1
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def emit_umin(tmp_id, args):
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c("uint64_t tmp{0} = MIN({1}, {2});".format(tmp_id, args[1], args[0]))
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return tmp_id + 1
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ops = {}
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# (n operands, emitter)
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ops["FADD"] = (2, emit_fadd)
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ops["FDIV"] = (2, emit_fdiv)
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ops["FMAX"] = (2, emit_fmax)
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ops["FMUL"] = (2, emit_fmul)
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ops["FSUB"] = (2, emit_fsub)
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ops["READ"] = (2, emit_read)
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ops["UADD"] = (2, emit_uadd)
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ops["UDIV"] = (2, emit_udiv)
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ops["UMUL"] = (2, emit_umul)
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ops["USUB"] = (2, emit_usub)
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ops["UMIN"] = (2, emit_umin)
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def brkt(subexp):
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if " " in subexp:
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return "(" + subexp + ")"
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else:
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return subexp
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def splice_bitwise_and(args):
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return brkt(args[1]) + " & " + brkt(args[0])
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def splice_logical_and(args):
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return brkt(args[1]) + " && " + brkt(args[0])
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def splice_ult(args):
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return brkt(args[1]) + " < " + brkt(args[0])
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def splice_ugte(args):
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return brkt(args[1]) + " >= " + brkt(args[0])
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exp_ops = {}
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# (n operands, splicer)
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exp_ops["AND"] = (2, splice_bitwise_and)
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exp_ops["UGTE"] = (2, splice_ugte)
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exp_ops["ULT"] = (2, splice_ult)
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exp_ops["&&"] = (2, splice_logical_and)
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hw_vars = {}
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hw_vars["$EuCoresTotalCount"] = "brw->perfquery.sys_vars.n_eus"
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hw_vars["$EuSlicesTotalCount"] = "brw->perfquery.sys_vars.n_eu_slices"
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hw_vars["$EuSubslicesTotalCount"] = "brw->perfquery.sys_vars.n_eu_sub_slices"
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hw_vars["$EuThreadsCount"] = "brw->perfquery.sys_vars.eu_threads_count"
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hw_vars["$SliceMask"] = "brw->perfquery.sys_vars.slice_mask"
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hw_vars["$SubsliceMask"] = "brw->perfquery.sys_vars.subslice_mask"
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hw_vars["$GpuTimestampFrequency"] = "brw->perfquery.sys_vars.timestamp_frequency"
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hw_vars["$GpuMinFrequency"] = "brw->perfquery.sys_vars.gt_min_freq"
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hw_vars["$GpuMaxFrequency"] = "brw->perfquery.sys_vars.gt_max_freq"
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def output_rpn_equation_code(set, counter, equation, counter_vars):
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c("/* RPN equation: " + equation + " */")
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tokens = equation.split()
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stack = []
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tmp_id = 0
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tmp = None
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for token in tokens:
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stack.append(token)
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while stack and stack[-1] in ops:
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op = stack.pop()
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argc, callback = ops[op]
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args = []
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for i in range(0, argc):
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operand = stack.pop()
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if operand[0] == "$":
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if operand in hw_vars:
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operand = hw_vars[operand]
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elif operand in counter_vars:
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reference = counter_vars[operand]
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operand = read_funcs[operand[1:]] + "(brw, query, accumulator)"
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else:
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raise Exception("Failed to resolve variable " + operand + " in equation " + equation + " for " + set.get('name') + " :: " + counter.get('name'));
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args.append(operand)
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tmp_id = callback(tmp_id, args)
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tmp = "tmp{0}".format(tmp_id - 1)
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stack.append(tmp)
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if len(stack) != 1:
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raise Exception("Spurious empty rpn code for " + set.get('name') + " :: " +
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counter.get('name') + ".\nThis is probably due to some unhandled RPN function, in the equation \"" +
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equation + "\"")
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value = stack[-1]
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if value in hw_vars:
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value = hw_vars[value];
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c("\nreturn " + value + ";")
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def splice_rpn_expression(set, counter, expression):
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tokens = expression.split()
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stack = []
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for token in tokens:
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stack.append(token)
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while stack and stack[-1] in exp_ops:
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op = stack.pop()
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argc, callback = exp_ops[op]
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args = []
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for i in range(0, argc):
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operand = stack.pop()
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if operand[0] == "$":
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if operand in hw_vars:
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operand = hw_vars[operand]
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else:
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raise Exception("Failed to resolve variable " + operand + " in expression " + expression + " for " + set.get('name') + " :: " + counter.get('name'));
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args.append(operand)
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subexp = callback(args)
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stack.append(subexp)
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if len(stack) != 1:
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raise Exception("Spurious empty rpn expression for " + set.get('name') + " :: " +
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counter.get('name') + ".\nThis is probably due to some unhandled RPN operation, in the expression \"" +
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expression + "\"")
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return stack[-1]
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def output_counter_read(set, counter, counter_vars):
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c("\n")
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c("/* {0} :: {1} */".format(set.get('name'), counter.get('name')))
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ret_type = counter.get('data_type')
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if ret_type == "uint64":
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ret_type = "uint64_t"
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c("static " + ret_type)
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read_sym = "{0}__{1}__{2}__read".format(set.get('chipset').lower(), set.get('underscore_name'), counter.get('underscore_name'))
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c(read_sym + "(struct brw_context *brw,\n")
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c_indent(len(read_sym) + 1)
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c("const struct brw_perf_query_info *query,\n")
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c("uint64_t *accumulator)\n")
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c_outdent(len(read_sym) + 1)
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c("{")
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c_indent(3)
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output_rpn_equation_code(set, counter, counter.get('equation'), counter_vars)
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c_outdent(3)
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c("}")
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return read_sym
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def output_counter_max(set, counter, counter_vars):
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max_eq = counter.get('max_equation')
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if not max_eq:
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return "0; /* undefined */"
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try:
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val = float(max_eq)
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return max_eq + ";"
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except ValueError:
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pass
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# We can only report constant maximum values via INTEL_performance_query
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for token in max_eq.split():
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if token[0] == '$' and token not in hw_vars:
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return "0; /* unsupported (varies over time) */"
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c("\n")
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c("/* {0} :: {1} */".format(set.get('name'), counter.get('name')))
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ret_type = counter.get('data_type')
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if ret_type == "uint64":
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ret_type = "uint64_t"
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c("static " + ret_type)
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max_sym = "{0}__{1}__{2}__max".format(set.get('chipset').lower(), set.get('underscore_name'), counter.get('underscore_name'))
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c(max_sym + "(struct brw_context *brw)\n")
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c("{")
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c_indent(3)
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output_rpn_equation_code(set, counter, max_eq, counter_vars)
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c_outdent(3)
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c("}")
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return max_sym + "(brw);"
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c_type_sizes = { "uint32_t": 4, "uint64_t": 8, "float": 4, "double": 8, "bool": 4 }
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def sizeof(c_type):
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return c_type_sizes[c_type]
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def pot_align(base, pot_alignment):
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return (base + pot_alignment - 1) & ~(pot_alignment - 1);
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semantic_type_map = {
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"duration": "raw",
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"ratio": "event"
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}
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def output_counter_report(set, counter, current_offset):
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data_type = counter.get('data_type')
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data_type_uc = data_type.upper()
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c_type = data_type
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if "uint" in c_type:
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c_type = c_type + "_t"
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semantic_type = counter.get('semantic_type')
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if semantic_type in semantic_type_map:
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semantic_type = semantic_type_map[semantic_type]
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semantic_type_uc = semantic_type.upper()
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c("\n")
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availability = counter.get('availability')
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if availability:
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expression = splice_rpn_expression(set, counter, availability)
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lines = expression.split(' && ')
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n_lines = len(lines)
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if n_lines == 1:
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c("if (" + lines[0] + ") {")
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else:
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c("if (" + lines[0] + " &&")
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c_indent(4)
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for i in range(1, (n_lines - 1)):
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c(lines[i] + " &&")
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c(lines[(n_lines - 1)] + ") {")
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c_outdent(4)
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c_indent(3)
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c("counter = &query->counters[query->n_counters++];\n")
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c("counter->oa_counter_read_" + data_type + " = " + read_funcs[counter.get('symbol_name')] + ";\n")
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c("counter->name = \"" + counter.get('name') + "\";\n")
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c("counter->desc = \"" + counter.get('description') + "\";\n")
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c("counter->type = GL_PERFQUERY_COUNTER_" + semantic_type_uc + "_INTEL;\n")
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c("counter->data_type = GL_PERFQUERY_COUNTER_DATA_" + data_type_uc + "_INTEL;\n")
|
||||
c("counter->raw_max = " + max_values[counter.get('symbol_name')] + "\n")
|
||||
|
||||
current_offset = pot_align(current_offset, sizeof(c_type))
|
||||
c("counter->offset = " + str(current_offset) + ";\n")
|
||||
c("counter->size = sizeof(" + c_type + ");\n")
|
||||
|
||||
if availability:
|
||||
c_outdent(3);
|
||||
c("}")
|
||||
|
||||
return current_offset + sizeof(c_type)
|
||||
|
||||
|
||||
def main():
|
||||
global c_file
|
||||
global header_file
|
||||
global max_values
|
||||
global read_funcs
|
||||
|
||||
parser = argparse.ArgumentParser()
|
||||
parser.add_argument("xml", help="XML description of metrics")
|
||||
parser.add_argument("--header", help="Header file to write")
|
||||
parser.add_argument("--code", help="C file to write")
|
||||
parser.add_argument("--chipset", help="Chipset to generate code for", required=True)
|
||||
|
||||
args = parser.parse_args()
|
||||
|
||||
chipset = args.chipset.lower()
|
||||
|
||||
if args.header:
|
||||
header_file = open(args.header, 'w')
|
||||
|
||||
if args.code:
|
||||
c_file = open(args.code, 'w')
|
||||
|
||||
tree = et.parse(args.xml)
|
||||
|
||||
|
||||
copyright = textwrap.dedent("""\
|
||||
/* Autogenerated file, DO NOT EDIT manually! generated by {}
|
||||
*
|
||||
* Copyright (c) 2015 Intel Corporation
|
||||
*
|
||||
* 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 (including the next
|
||||
* paragraph) 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.
|
||||
*/
|
||||
|
||||
""").format(os.path.basename(__file__))
|
||||
|
||||
h(copyright)
|
||||
h(textwrap.dedent("""\
|
||||
#pragma once
|
||||
|
||||
struct brw_context;
|
||||
|
||||
"""))
|
||||
|
||||
c(copyright)
|
||||
c(textwrap.dedent("""\
|
||||
#include <stdint.h>
|
||||
#include <stdbool.h>
|
||||
|
||||
#include "util/hash_table.h"
|
||||
|
||||
"""))
|
||||
|
||||
c("#include \"brw_oa_" + chipset + ".h\"")
|
||||
|
||||
c(textwrap.dedent("""\
|
||||
#include "brw_context.h"
|
||||
#include "brw_performance_query.h"
|
||||
|
||||
|
||||
#define MIN(a, b) ((a < b) ? (a) : (b))
|
||||
#define MAX(a, b) ((a > b) ? (a) : (b))
|
||||
|
||||
"""))
|
||||
|
||||
for set in tree.findall(".//set"):
|
||||
max_values = {}
|
||||
read_funcs = {}
|
||||
counter_vars = {}
|
||||
counters = set.findall("counter")
|
||||
|
||||
assert set.get('chipset').lower() == chipset
|
||||
|
||||
for counter in counters:
|
||||
empty_vars = {}
|
||||
read_funcs[counter.get('symbol_name')] = output_counter_read(set, counter, counter_vars)
|
||||
max_values[counter.get('symbol_name')] = output_counter_max(set, counter, empty_vars)
|
||||
counter_vars["$" + counter.get('symbol_name')] = counter
|
||||
|
||||
|
||||
c("\nstatic struct brw_perf_query_counter {0}_{1}_query_counters[{2}];\n".format(chipset, set.get('underscore_name'), len(counters)))
|
||||
c("static struct brw_perf_query_info " + chipset + "_" + set.get('underscore_name') + "_query = {\n")
|
||||
c_indent(3)
|
||||
|
||||
c(".kind = OA_COUNTERS,\n")
|
||||
c(".name = \"" + set.get('name') + "\",\n")
|
||||
c(".guid = \"" + set.get('hw_config_guid') + "\",\n")
|
||||
|
||||
c(".counters = {0}_{1}_query_counters,".format(chipset, set.get('underscore_name')))
|
||||
c(".n_counters = 0,")
|
||||
c(".oa_metrics_set_id = 0, /* determined at runtime, via sysfs */")
|
||||
|
||||
if chipset == "hsw":
|
||||
c(textwrap.dedent("""\
|
||||
.oa_format = I915_OA_FORMAT_A45_B8_C8,
|
||||
|
||||
/* Accumulation buffer offsets... */
|
||||
.gpu_time_offset = 0,
|
||||
.a_offset = 1,
|
||||
.b_offset = 46,
|
||||
.c_offset = 54,
|
||||
"""))
|
||||
else:
|
||||
c(textwrap.dedent("""\
|
||||
.oa_format = I915_OA_FORMAT_A32u40_A4u32_B8_C8,
|
||||
|
||||
/* Accumulation buffer offsets... */
|
||||
.gpu_time_offset = 0,
|
||||
.gpu_clock_offset = 1,
|
||||
.a_offset = 2,
|
||||
.b_offset = 38,
|
||||
.c_offset = 46,
|
||||
"""))
|
||||
|
||||
c_outdent(3)
|
||||
c("};\n")
|
||||
|
||||
c("\nstatic void\n")
|
||||
c("register_" + set.get('underscore_name') + "_counter_query(struct brw_context *brw)\n")
|
||||
c("{\n")
|
||||
c_indent(3)
|
||||
|
||||
c("static struct brw_perf_query_info *query = &" + chipset + "_" + set.get('underscore_name') + "_query;\n")
|
||||
c("struct brw_perf_query_counter *counter;\n")
|
||||
|
||||
c("\n")
|
||||
c("/* Note: we're assuming there can't be any variation in the definition ")
|
||||
c(" * of a query between contexts so it's ok to describe a query within a ")
|
||||
c(" * global variable which only needs to be initialized once... */")
|
||||
c("\nif (!query->data_size) {")
|
||||
c_indent(3)
|
||||
|
||||
offset = 0
|
||||
for counter in counters:
|
||||
offset = output_counter_report(set, counter, offset)
|
||||
|
||||
|
||||
c("\nquery->data_size = counter->offset + counter->size;\n")
|
||||
|
||||
c_outdent(3)
|
||||
c("}");
|
||||
|
||||
c("\n_mesa_hash_table_insert(brw->perfquery.oa_metrics_table, query->guid, query);")
|
||||
|
||||
c_outdent(3)
|
||||
c("}\n")
|
||||
|
||||
h("void brw_oa_register_queries_" + chipset + "(struct brw_context *brw);\n")
|
||||
|
||||
c("\nvoid")
|
||||
c("brw_oa_register_queries_" + chipset + "(struct brw_context *brw)")
|
||||
c("{")
|
||||
c_indent(3)
|
||||
|
||||
for set in tree.findall(".//set"):
|
||||
c("register_" + set.get('underscore_name') + "_counter_query(brw);")
|
||||
|
||||
c_outdent(3)
|
||||
c("}")
|
||||
|
||||
|
||||
if __name__ == '__main__':
|
||||
main()
|
||||
Loading…
Reference in New Issue