mirror of
https://github.com/tiagovignatti/intel-gpu-tools.git
synced 2026-08-11 16:32:58 +00:00
intel-gpu-tools/debugging: shader debugger
high level summary of the files:
* debug_rdata - get current state from debug registers. Helpful
when developing the debugger, and could serve some purpose in the
future.
* eudb - the debugger itself
* eviction_macro - generate the proper macro to flush the EU render
cache until I get control flow working
* pre_cpp - an evaluating c preprocesser like thing, to be used before
cpp
* sr - the system routine, exception handler which runs on the EU
* test - a very basic test system routine
* debug.h
This commit is contained in:
Ben Widawsky
@@ -0,0 +1,84 @@
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# Copyright © 2011 Intel Corporation
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#
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# 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.
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||||
#
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||||
# Authors:
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# Ben Widawsky <ben@bwidawsk.net>
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OBJCOPY?=objcopy
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PRECPP=./pre_cpp.py
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CPP_FLAGS=-x assembler-with-cpp -P
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GEN_AS?=~/intel-gfx/intel-gen4asm/src/intel-gen4asm
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GEN_AS_FLAGS?=-g6 -a -b
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TEMP:=$(shell mktemp)
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TEMP2:=$(shell mktemp)
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GPU?=SANDYBRIDGE
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DEFINES+=-DGEN_ASM -D$(GPU) -I. -I../..//lib
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all: sr
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sr.c: sr.g4a eviction_macro evict.h
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$(PRECPP) $^ > $(TEMP)
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$(CPP) $(CPP_FLAGS) $(DEFINES) -o $(TEMP2) $(TEMP)
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$(GEN_AS) $(GEN_AS_FLAGS) $(TEMP2) -o $@
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sr : sr.o
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$(OBJCOPY) -O binary -K gen_eu_bytes $^ $@
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# Test files are useful for development. The system routine kernel is very
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# simple and doesn't depend on any external communication to run.
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test.c: test.g4a
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$(PRECPP) $^ > $(TEMP)
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$(CPP) $(CPP_FLAGS) $(DEFINES) -o $(TEMP2) $(TEMP)
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$(GEN_AS) $(GEN_AS_FLAGS) $(TEMP2) -o $@
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test : test.o
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$(OBJCOPY) -O binary -K gen_eu_bytes $^ $@
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helper: sr.g4a eviction_macro
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$(PRECPP) $^ > help
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$(CPP) $(CPP_FLAGS) $(DEFINES) -o help2 help
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$(GEN_AS) $(GEN_AS_FLAGS) help2 -o $@
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eviction_macro :
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evict.h : eviction_macro
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$(shell ./eviction_macro >| evict.h)
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.PHONY : clean
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clean :
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$(RM) *.o sr.c sr test.c test evict.h eviction_macro
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.PHONY : clean
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distclean: clean
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$(RM) help*
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maintainer-clean: clean
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EMPTY_AUTOMAKE_TARGETS = install install-data install-exec uninstall \
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install-dvi install-html install-info install-ps \
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install-pdf installdirs check installcheck \
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mostlyclean dvi pdf ps info html tags ctags
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.PHONY: $(EMPTY_AUTOMAKE_TARGETS)
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$(EMPTY_AUTOMAKE_TARGETS):
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@@ -0,0 +1,48 @@
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/*
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* Copyright © 2011 Intel Corporation
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*
|
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* 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.
|
||||
*
|
||||
* Authors:
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* Ben Widawsky <ben@bwidawsk.net>
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*
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*/
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#include <stdio.h>
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#define START 0x100
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#define END ((128 << 10) / 4)
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int main(int argc, char *argv[]) {
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int i;
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printf("#ifdef SANDYBRIDGE\n");
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printf("#define EVICT_CACHE \\\n");
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printf("\tmov (1) m0.5:ud g0.5:ud FLAGS; \\\n");
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for (i = START; i < END - 8; i+=0x8) {
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printf("\tmov (1) m0.2:ud 0x%04x:ud FLAGS; \\\n", i);
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printf("\tWRITE_SCRATCH4(m0); \\\n");
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}
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printf("\tmov (1) m0.2:ud 0x%04x:ud FLAGS; \\\n", i);
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printf("\tWRITE_SCRATCH4(m0)\n");
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printf("#else\n");
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printf("#define EVICT_CACHE\n");
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printf("#endif\n");
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}
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Executable
+123
@@ -0,0 +1,123 @@
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#!/usr/bin/env python3
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# Copyright © 2011 Intel Corporation
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#
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# 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.
|
||||
#
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# Authors:
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# Ben Widawsky <ben@bwidawsk.net>
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#very limited C-like preprocessor
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#limitations:
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# no macro substitutions
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# no multiline definitions
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# divide operator is //
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import sys,re
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file = open(sys.argv[1], "r")
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lines = file.readlines()
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len(lines)
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out = dict()
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defines = dict()
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count = 0
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#create a dict for our output
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for line in lines:
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out[count] = line
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count = count + 1
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#done is considered #define <name> <number>
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def is_done(string):
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m = re.match("#define\s+(\w+?)\s+([a-fA-F0-9\-]+?)\s*$", string)
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return m
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#skip macros, the real cpp will handle it
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def skip(string):
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#macro
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m = re.match("#define\s+\w+\(.+", string)
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return m != None
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#put contants which are done being evaluated into the dictionary
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def easy_constants():
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ret = 0
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for lineno, string in out.items():
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if skip(string):
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continue
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m = is_done(string)
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if m != None:
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key = m.group(1)
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value = m.group(2)
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if not key in defines:
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defines[key] = int(eval(value))
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ret = 1
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return ret
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#replace names with dictionary values
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def simple_replace():
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ret = 0
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for lineno, string in out.items():
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if skip(string):
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continue
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for key, value in defines.items():
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if is_done(string):
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continue
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s = re.subn(key, repr(value), string)
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if s[1] > 0:
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out[lineno] = s[0]
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ret = s[1]
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return ret
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#evaluate expressions to try to simplify them
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def collapse_constants():
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ret = 0
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for lineno, string in out.items():
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if skip(string):
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continue
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if is_done(string):
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continue
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m = re.match("#define\s+(.+?)\s+(.+)$", string)
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if m != None:
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try:
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out[lineno] = "#define " + m.group(1) + " " + repr(eval(m.group(2)))
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ret = 1
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except NameError as ne:
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#this happens before a variable is resolved in simple_replace
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continue
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except SyntaxError:
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#this happens with something like #define foo bar, which the
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#regular cpp can handle
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continue
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except:
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raise KeyboardInterrupt
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return ret;
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while True:
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ret = 0
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ret += easy_constants()
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ret += simple_replace()
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ret += collapse_constants()
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if ret == 0:
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break;
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for lineno, string in out.items():
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print(string.rstrip())
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@@ -0,0 +1,277 @@
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/*
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* Copyright © 2011 Intel Corporation
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*
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* 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.
|
||||
*
|
||||
* Authors:
|
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* Ben Widawsky <ben@bwidawsk.net>
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*
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*/
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#include "debug.h"
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#include "evict.h"
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#define CR0_0_ME_STATE_CTRL (1 << 31)
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#define CR0_0_BP_SUPPRESS (1 << 15)
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#define CR0_0_SPF_EN (1 << 2)
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#define CR0_0_ACC_DIS (1 << 1)
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#define CR0_1_BES_CTRL (1 << 31)
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#define CR0_1_HALT_CTRL (1 << 30)
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#define CR0_1_SOFT_EXCEPTION_CTRL (1 << 29)
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#define CR0_1_ILLGL_OP_STS (1 << 28)
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#define CR0_1_STACK_OVRFLW_STS (1 << 27)
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#define CR0_0_ENTRY_UNMASK (CR0_0_SPF_EN | CR0_0_ACC_DIS)
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// TODO: Need to fix this for non breakpoint case
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#define CR0_1_ENTRY_UNMASK ~(CR0_1_BES_CTRL)
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#define CR0_0_RETURN_MASK ~(CR0_0_ME_STATE_CTRL | CR0_0_SPF_EN | CR0_0_ACC_DIS)
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// TODO: not sure how to make this not hardcoded
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#define PER_THREAD_SCRATCH_SIZE (1 << 20)
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#define PER_THREAD_QWORDS (PER_THREAD_SCRATCH_SIZE >> 4)
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/* Should get this from brw_defines.h */
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#define BRW_DATAPORT_OWORD_BLOCK_2_OWORDS 2
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#define BRW_DATAPORT_OWORD_BLOCK_4_OWORDS 3
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#define BRW_DATAPORT_OWORD_BLOCK_8_OWORDS 4
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#define GEN6_DATAPORT_WRITE_MESSAGE_OWORD_BLOCK_WRITE 8
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#define BRW_DATAPORT_READ_MESSAGE_OWORD_BLOCK_READ 0
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/* desc field, ie. dword3 6.3.66.2 and 2.11.2.1.4 */
|
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#define SEND_MLEN_5 (5<<25)
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#define SEND_MLEN_3 (3<<25)
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#define SEND_MLEN_2 (2<<25)
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#define SEND_MLEN_1 (1<<25)
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#define SEND_RLEN_1 (1<<20)
|
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#define SEND_RLEN_0 (0<<20)
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#define SEND_HEADER_PRESENT (1<<19)
|
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#define SEND_WRITE_COMMIT (1<<17)
|
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#define SEND_TYPE_WRITE (GEN6_DATAPORT_WRITE_MESSAGE_OWORD_BLOCK_WRITE<<13)
|
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#define SEND_TYPE_READ (BRW_DATAPORT_READ_MESSAGE_OWORD_BLOCK_READ<<13)
|
||||
#define SEND_BLOCK_SIZE1 (BRW_DATAPORT_OWORD_BLOCK_2_OWORDS<<8)
|
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#define SEND_BLOCK_SIZE2 (BRW_DATAPORT_OWORD_BLOCK_4_OWORDS<<8)
|
||||
#define SEND_BLOCK_SIZE4 (BRW_DATAPORT_OWORD_BLOCK_8_OWORDS<<8)
|
||||
#define SEND_BINDING_TABLE (255<<0)
|
||||
// No write commit
|
||||
#define WRITE_DESC1_XXX SEND_BINDING_TABLE | SEND_BLOCK_SIZE1 | SEND_TYPE_WRITE | SEND_HEADER_PRESENT | SEND_MLEN_2
|
||||
#define WRITE_DESC1_WC SEND_BINDING_TABLE | SEND_BLOCK_SIZE1 | SEND_TYPE_WRITE | SEND_HEADER_PRESENT | SEND_MLEN_2 | SEND_WRITE_COMMIT
|
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#define WRITE_DESC2 SEND_BINDING_TABLE | SEND_BLOCK_SIZE2 | SEND_TYPE_WRITE | SEND_HEADER_PRESENT | SEND_MLEN_3
|
||||
#define WRITE_DESC4 SEND_BINDING_TABLE | SEND_BLOCK_SIZE4 | SEND_TYPE_WRITE | SEND_HEADER_PRESENT | SEND_MLEN_5
|
||||
#define RECV_DESC1 SEND_BINDING_TABLE | SEND_BLOCK_SIZE1 | SEND_TYPE_READ | SEND_HEADER_PRESENT | SEND_MLEN_1 | SEND_RLEN_1
|
||||
//#define SEND_DESC1 0x40902FF
|
||||
#define SEND_DESC1_WC 0x40b02FF
|
||||
|
||||
/* ex_desc field 6.3.66.2 */
|
||||
#define SEND_DP_RENDER_CACHE (5<<0)
|
||||
#define SEND_EOT (1<<5)
|
||||
#define SEND_EX_DESC SEND_DP_RENDER_CACHE
|
||||
|
||||
/**
|
||||
* WRITE_SCRATCH1 - Write 2 owords.
|
||||
* cdst.2 - offset
|
||||
* cdst.5 - per thread scratch base, relative to gsba??
|
||||
* cdst+1 - data to be written.
|
||||
*/
|
||||
#define WRITE_SCRATCH1(cdst) \
|
||||
send (16) null cdst SEND_EX_DESC WRITE_DESC1_XXX FLAGS
|
||||
#define WRITE_SCRATCH1_WC(cdst) \
|
||||
send (16) g1 cdst SEND_EX_DESC WRITE_DESC1_WC FLAGS
|
||||
#define WRITE_SCRATCH2(cdst) \
|
||||
send (16) null cdst SEND_EX_DESC WRITE_DESC2 FLAGS
|
||||
#define WRITE_SCRATCH4(cdst) \
|
||||
send (16) null cdst SEND_EX_DESC WRITE_DESC4 FLAGS
|
||||
|
||||
/**
|
||||
* READ_SCRATCH1 - Read 2 owords.
|
||||
* cdst.2 - offset
|
||||
* cdst.5 - per thread scratch base, relative to gsba??
|
||||
* grf - register where read data is populated.
|
||||
*/
|
||||
#define READ_SCRATCH1(grf, cdst) \
|
||||
send (16) grf:ud cdst SEND_EX_DESC RECV_DESC1 FLAGS
|
||||
|
||||
/**
|
||||
* SET_OFFSET - setup mrf for the given offset prior to a send instruction.
|
||||
* mrf - message register to be used as the header.
|
||||
* offset - offset.
|
||||
*
|
||||
* If a WRITE_SCRATCH follows, mrf+1 -> mrf+1+n should contain the data to be
|
||||
* written.
|
||||
*/
|
||||
#define SET_OFFSET(mrf, offset) \
|
||||
mov (1) mrf.5:ud g0.5:ud FLAGS; \
|
||||
mov (1) mrf.2:ud offset:ud FLAGS
|
||||
|
||||
/**
|
||||
* SAVE_CRF - save the control register
|
||||
* clobbers: m0.2, m0.5
|
||||
*/
|
||||
#define CR_OFFSET 0x40
|
||||
#define SAVE_CRF \
|
||||
SET_OFFSET(m0, CR_OFFSET); \
|
||||
mov (8) m1:ud 0xdeadbeef:ud FLAGS; \
|
||||
mov (1) m1.0:ud cr0.0 FLAGS; \
|
||||
mov (1) m1.1:ud cr0.1 FLAGS; \
|
||||
mov (1) m1.2:ud cr0.2 FLAGS; \
|
||||
mov (1) m1.3:ud sr0:ud FLAGS; \
|
||||
WRITE_SCRATCH1(m0)
|
||||
|
||||
/*
|
||||
* clobbers: m0.2, m0.5
|
||||
*/
|
||||
#define STORE_GRF(grf, offset) \
|
||||
SET_OFFSET(m0, offset); \
|
||||
mov (8) m1:ud grf:ud FLAGS; \
|
||||
WRITE_SCRATCH1(m0)
|
||||
|
||||
/*
|
||||
* clobbers: m0.2, m0.5
|
||||
*/
|
||||
#define LOAD_GRF(grf, offset) \
|
||||
SET_OFFSET(m0, offset); \
|
||||
READ_SCRATCH1(grf, m0)
|
||||
|
||||
/*
|
||||
* clobbers: mrf.2 mrf.5
|
||||
*/
|
||||
#define STORE_MRF(mrf, offset) \
|
||||
SET_OFFSET(mrf, offset); \
|
||||
WRITE_SCRATCH1(mrf)
|
||||
|
||||
/*
|
||||
* non-quirky semantics, unlike STORE_MRF
|
||||
* clobbers: g1
|
||||
*/
|
||||
#define LOAD_MRF(mrf, offset) \
|
||||
LOAD_GRF(g1, offset); \
|
||||
mov (8) mrf:ud g1:ud FLAGS
|
||||
|
||||
#define SAVE_ALL_MRF \
|
||||
/* m1 is saved already */ \
|
||||
STORE_MRF(m1, 0x2); \
|
||||
STORE_MRF(m2, 0x4); \
|
||||
STORE_MRF(m3, 0x6); \
|
||||
STORE_MRF(m4, 0x8); \
|
||||
STORE_MRF(m5, 0xa); \
|
||||
STORE_MRF(m6, 0xc); \
|
||||
STORE_MRF(m7, 0xe); \
|
||||
STORE_MRF(m8, 0x10); \
|
||||
STORE_MRF(m9, 0x12); \
|
||||
STORE_MRF(m10, 0x14); \
|
||||
STORE_MRF(m11, 0x16); \
|
||||
STORE_MRF(m12, 0x18); \
|
||||
STORE_MRF(m13, 0x1a); \
|
||||
STORE_MRF(m14, 0x1c)
|
||||
|
||||
#define RESTORE_ALL_MRF \
|
||||
LOAD_MRF(m15, 0x1c); \
|
||||
LOAD_MRF(m14, 0x1a); \
|
||||
LOAD_MRF(m13, 0x18); \
|
||||
LOAD_MRF(m12, 0x16); \
|
||||
LOAD_MRF(m11, 0x14); \
|
||||
LOAD_MRF(m10, 0x12); \
|
||||
LOAD_MRF(m9, 0x10); \
|
||||
LOAD_MRF(m8, 0xe); \
|
||||
LOAD_MRF(m7, 0xc); \
|
||||
LOAD_MRF(m6, 0xa); \
|
||||
LOAD_MRF(m5, 0x8); \
|
||||
LOAD_MRF(m4, 0x6); \
|
||||
LOAD_MRF(m3, 0x4); \
|
||||
LOAD_MRF(m2, 0x2); \
|
||||
LOAD_MRF(m1, 0x0)
|
||||
|
||||
#ifndef SANDYBRIDGE
|
||||
#error Only SandyBridge is supported
|
||||
#endif
|
||||
|
||||
/* Default flags for an instruction */
|
||||
#define FLAGS { ALIGN1, SWITCH, MASK_DISABLE, ACCWRCTRL}
|
||||
|
||||
/*
|
||||
* We can clobber m0, and g0.4, everything else must be saved.
|
||||
*/
|
||||
Enter:
|
||||
nop;
|
||||
|
||||
or (1) cr0.0 cr0.0 CR0_0_ENTRY_UNMASK:ud FLAGS;
|
||||
|
||||
/*
|
||||
* g0.5 has the per thread scratch space when running in FS or VS.
|
||||
* If we don't have a valid g0.5, we can calculate a per thread scratch offset
|
||||
* using the system registers. The problem is we do not have a good way to know
|
||||
* the offset from GSBA. The system routine will have to be hardcoded or
|
||||
* dynamically patched with the correct offset.
|
||||
* TID is in sr0.0[2:0]
|
||||
* EUID is in sr0.0[11:8]
|
||||
*/
|
||||
|
||||
#ifdef GPGPU
|
||||
mov (1) g0.4:ud 0:ud FLAGS;
|
||||
#if 0
|
||||
/* This should work according to the docs, the add blows up */
|
||||
shr (1) g0.8:uw sr0.0:uw 5 FLAGS;
|
||||
add (1) g0.16:ub gr0.16:ub sr0.0:ub FLAGS;
|
||||
#else
|
||||
shr (1) g0.8:uw sr0.0:uw 5 FLAGS;
|
||||
mov (1) g0.9:uw sr0.0:uw FLAGS;
|
||||
and (1) g0.9:uw g0.9:uw 0x7:uw FLAGS;
|
||||
add (1) g0.8:uw g0.8:uw g0.9:uw FLAGS;
|
||||
mov (1) g0.9:uw 0:uw FLAGS;
|
||||
mul (1) g0.4:ud g0.4:ud PER_THREAD_QWORDS FLAGS;
|
||||
#endif
|
||||
#endif
|
||||
|
||||
mov (8) m0:ud 0:ud FLAGS;
|
||||
|
||||
/* Saves must occur in order so as not to clobber the next register */
|
||||
STORE_MRF(m0, 0);
|
||||
STORE_GRF(g0, 0x20);
|
||||
STORE_GRF(g1, 0x22);
|
||||
SAVE_ALL_MRF;
|
||||
|
||||
mov (8) g1:ud STATE_EU_MSG:ud FLAGS;
|
||||
STORE_GRF(g1, STATE_QWORD);
|
||||
|
||||
mov (8) g1:ud DEBUG_PROTOCOL_VERSION:ud FLAGS;
|
||||
STORE_GRF(g1, COMMUNICATION_QWORD);
|
||||
|
||||
SAVE_CRF;
|
||||
|
||||
EVICT_CACHE;
|
||||
wait n1:ud;
|
||||
EVICT_CACHE;
|
||||
|
||||
/* Using this to try to keep coherency */
|
||||
LOAD_GRF(g1, CR_OFFSET);
|
||||
LOAD_GRF(g1, COMMUNICATION_QWORD);
|
||||
LOAD_GRF(g1, STATE_QWORD);
|
||||
|
||||
RESTORE_ALL_MRF;
|
||||
LOAD_GRF(g1, 0x22);
|
||||
LOAD_GRF(g0, 0x20);
|
||||
|
||||
/* Clear breakpoint status */
|
||||
and (1) cr0.1 cr0.1 CR0_1_ENTRY_UNMASK:ud FLAGS;
|
||||
|
||||
/* set breakpoint suppress this should be conditional on bes */
|
||||
or (1) cr0.0 cr0.0 CR0_0_BP_SUPPRESS:ud FLAGS;
|
||||
|
||||
and (1) cr0.0 cr0.0 CR0_0_RETURN_MASK:ud FLAGS;
|
||||
nop;
|
||||
@@ -0,0 +1,64 @@
|
||||
/*
|
||||
* Copyright © 2011 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.
|
||||
*
|
||||
* Authors:
|
||||
* Ben Widawsky <ben@bwidawsk.net>
|
||||
*
|
||||
*/
|
||||
|
||||
#include "debug.h"
|
||||
|
||||
#define CR0_0_ME_STATE_CTRL (1 << 31)
|
||||
#define CR0_0_BP_SUPPRESS (1 << 15)
|
||||
#define CR0_0_SPF_EN (1 << 2)
|
||||
#define CR0_0_ACC_DIS (1 << 1)
|
||||
#define CR0_1_BES_CTRL (1 << 31)
|
||||
#define CR0_1_HALT_CTRL (1 << 30)
|
||||
#define CR0_1_SOFT_EXCEPTION_CTRL (1 << 29)
|
||||
#define CR0_1_ILLGL_OP_STS (1 << 28)
|
||||
#define CR0_1_STACK_OVRFLW_STS (1 << 27)
|
||||
|
||||
#define CR0_0_ENTRY_UNMASK (CR0_0_SPF_EN | CR0_0_ACC_DIS)
|
||||
// TODO: Need to fix this for non breakpoint case
|
||||
#define CR0_1_ENTRY_UNMASK ~(CR0_1_BES_CTRL)
|
||||
#define CR0_0_RETURN_MASK ~(CR0_0_ME_STATE_CTRL | CR0_0_SPF_EN | CR0_0_ACC_DIS)
|
||||
|
||||
#ifndef SANDYBRIDGE
|
||||
#error Only SandyBridge is supported
|
||||
#endif
|
||||
|
||||
/* Default flags for an instruction */
|
||||
#define FLAGS { ALIGN1, SWITCH, MASK_DISABLE, ACCWRCTRL}
|
||||
|
||||
Enter:
|
||||
nop;
|
||||
|
||||
or (1) cr0.0 cr0.0 CR0_0_ENTRY_UNMASK:ud FLAGS;
|
||||
|
||||
/* Clear breakpoint status */
|
||||
and (1) cr0.1 cr0.1 CR0_1_ENTRY_UNMASK:ud FLAGS;
|
||||
|
||||
/* set breakpoint suppress this should be conditional on bes */
|
||||
or (1) cr0.0 cr0.0 CR0_0_BP_SUPPRESS:ud FLAGS;
|
||||
|
||||
and (1) cr0.0 cr0.0 CR0_0_RETURN_MASK:ud FLAGS;
|
||||
nop;
|
||||
Reference in New Issue
Block a user