[RFC,06/12] drm/msm/headergen: import source files from freedreno/envytools

diff --git a/drivers/gpu/drm/msm/headergen2/aprintf.c b/drivers/gpu/drm/msm/headergen2/aprintf.c
new file mode 100644
index 000000000000..b3d924f59413
--- /dev/null
+++ b/drivers/gpu/drm/msm/headergen2/aprintf.c
@@ -0,0 +1,38 @@ 
+/*
+ * Copyright (C) 2009-2011 Marcin Kościelnicki <koriakin@0x04.net>
+ * All Rights Reserved.
+ *
+ * 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.
+ */
+
+#include "util.h"
+#include <stdarg.h>
+
+char *aprintf(const char *format, ...) {
+	va_list va;
+	va_start(va, format);
+	size_t sz = vsnprintf(0, 0, format, va);
+	va_end(va);
+	char *res = malloc(sz + 1);
+	va_start(va, format);
+	vsnprintf(res, sz + 1, format, va);
+	va_end(va);
+	return res;
+}
diff --git a/drivers/gpu/drm/msm/headergen2/colors.c b/drivers/gpu/drm/msm/headergen2/colors.c
new file mode 100644
index 000000000000..192c57dd18bb
--- /dev/null
+++ b/drivers/gpu/drm/msm/headergen2/colors.c
@@ -0,0 +1,61 @@ 
+/*
+ * Copyright (C) 2012 Marcin Kościelnicki <koriakin@0x04.net>
+ * All Rights Reserved.
+ *
+ * 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.
+ */
+
+#include "colors.h"
+
+const struct envy_colors envy_null_colors = {
+	.reset	= "",
+	.iname	= "",
+	.rname	= "",
+	.mod	= "",
+	.sym	= "",
+	.reg	= "",
+	.regsp	= "",
+	.num	= "",
+	.mem	= "",
+	.btarg	= "",
+	.ctarg	= "",
+	.bctarg	= "",
+	.eval	= "",
+	.comm	= "",
+	.err	= "",
+};
+
+const struct envy_colors envy_def_colors = {
+	.reset	= "\x1b[0m",
+	.iname	= "\x1b[0;32m",
+	.rname	= "\x1b[0;32m",
+	.mod	= "\x1b[0;36m",
+	.sym	= "\x1b[0;36m",
+	.reg	= "\x1b[0;31m",
+	.regsp	= "\x1b[0;35m",
+	.num	= "\x1b[0;33m",
+	.mem	= "\x1b[0;35m",
+	.btarg	= "\x1b[0;35m",
+	.ctarg	= "\x1b[0;1;37m",
+	.bctarg	= "\x1b[0;1;35m",
+	.eval	= "\x1b[0;35m",
+	.comm	= "\x1b[0;34m",
+	.err	= "\x1b[0;1;31m",
+};
diff --git a/drivers/gpu/drm/msm/headergen2/colors.h b/drivers/gpu/drm/msm/headergen2/colors.h
new file mode 100644
index 000000000000..67d929d5fadc
--- /dev/null
+++ b/drivers/gpu/drm/msm/headergen2/colors.h
@@ -0,0 +1,49 @@ 
+/*
+ * Copyright (C) 2012 Marcin Kościelnicki <koriakin@0x04.net>
+ * All Rights Reserved.
+ *
+ * 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.
+ */
+
+#ifndef COLORS_H
+#define COLORS_H
+
+struct envy_colors {
+	const char *reset;
+	const char *iname;	/* instruction name */
+	const char *rname;	/* register or bitfield name */
+	const char *mod;	/* instruction modifier */
+	const char *sym;	/* auxiliary char like { , + */
+	const char *reg;	/* ISA register */
+	const char *regsp;	/* special ISA register */
+	const char *num;	/* immediate number */
+	const char *mem;	/* memory reference */
+	const char *btarg;	/* branch target */
+	const char *ctarg;	/* call target */
+	const char *bctarg;	/* branch and call target */
+	const char *eval;	/* enum value */
+	const char *comm;	/* comment */
+	const char *err;	/* error */
+};
+
+extern const struct envy_colors envy_null_colors;
+extern const struct envy_colors envy_def_colors;
+
+#endif
diff --git a/drivers/gpu/drm/msm/headergen2/headergen2.c b/drivers/gpu/drm/msm/headergen2/headergen2.c
new file mode 100644
index 000000000000..d5a3eb7562ee
--- /dev/null
+++ b/drivers/gpu/drm/msm/headergen2/headergen2.c
@@ -0,0 +1,502 @@ 
+/*
+ * Copyright (C) 2013 Rob Clark <robdclark@gmail.com>
+ * Copyright (C) 2010-2011 Marcin Kościelnicki <koriakin@0x04.net>
+ * Copyright (C) 2010 Luca Barbieri <luca@luca-barbieri.com>
+ * Copyright (C) 2010 Marcin Slusarz <marcin.slusarz@gmail.com>
+ * All Rights Reserved.
+ *
+ * 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.
+ */
+
+/* modified version of headergen which uses enums and inline fxns for
+ * type safety.. based on original headergen
+ */
+
+#include "rnn.h"
+#include "util.h"
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <time.h>
+#include <ctype.h>
+#include <unistd.h>
+#include <string.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+#include <assert.h>
+
+struct rnndelem **elems = NULL;
+int elemsnum = 0;
+int elemsmax = 0;
+
+char **offsetfns = NULL;
+int offsetfnsnum = 0;
+int offsetfnsmax = 0;
+
+int startcol = 64;
+
+struct fout {
+	char *name;
+	FILE *file;
+	char *guard;
+};
+
+struct fout *fouts = 0;
+int foutsnum = 0;
+int foutsmax = 0;
+
+static bool no_asserts = false;
+
+static void seekcol (FILE *f, int src, int dst) {
+	if (dst <= src)
+		fprintf (f, "\t");
+	else {
+		int n = dst/8 - src/8;
+		if (n) {
+			while (n--)
+				fprintf (f, "\t");
+			n = dst&7;
+		} else
+			n = dst-src;
+		while (n--)
+			fprintf (f, " ");
+	}
+}
+
+static FILE *findfout (char *file) {
+	int i;
+	for (i = 0; i < foutsnum; i++)
+		if (!strcmp(fouts[i].name, file))
+			break;
+	if (i == foutsnum) {
+		fprintf (stderr, "AIII, didn't open file %s.\n", file);
+		exit(1);
+	}
+	return fouts[i].file;
+}
+
+static void printdef (char *name, char *suf, int type, uint64_t val, char *file) {
+	FILE *dst = findfout(file);
+	int len;
+	if (suf)
+		fprintf (dst, "#define %s__%s%n", name, suf, &len);
+	else
+		fprintf (dst, "#define %s%n", name, &len);
+	if (type == 0 && val > 0xffffffffull)
+		seekcol (dst, len, startcol-8);
+	else
+		seekcol (dst, len, startcol);
+	switch (type) {
+		case 0:
+			if (val > 0xffffffffull)
+				fprintf (dst, "0x%016"PRIx64"ULL\n", val);
+			else
+				fprintf (dst, "0x%08"PRIx64"\n", val);
+			break;
+		case 1:
+			fprintf (dst, "%"PRIu64"\n", val);
+			break;
+	}
+}
+
+static void printvalue (struct rnnvalue *val, int shift) {
+	if (val->varinfo.dead)
+		return;
+	if (val->valvalid)
+		printdef (val->fullname, 0, 0, val->value << shift, val->file);
+}
+
+static void printbitfield (struct rnnbitfield *bf, int shift);
+
+static void printtypeinfo (struct rnntypeinfo *ti, struct rnnbitfield *bf,
+		char *prefix, char *file) {
+	FILE *dst = findfout(file);
+	enum rnnttype intype = ti->type;
+	char *typename = NULL;
+	uint32_t mask = typeinfo_mask(ti);
+	uint32_t width = 1 + ti->high - ti->low;
+
+	/* for fixed point, input type (arg to fxn) is float: */
+	if ((ti->type == RNN_TTYPE_FIXED) || (ti->type == RNN_TTYPE_UFIXED))
+		intype = RNN_TTYPE_FLOAT;
+
+	/* for toplevel register (ie. not bitfield), only generate accessor
+	 * fxn for special cases (float, shr, min/max, etc):
+	 */
+	if (bf || ti->shr || ti->minvalid || ti->maxvalid || ti->alignvalid ||
+			ti->radixvalid || (intype == RNN_TTYPE_FLOAT)) {
+		switch (intype) {
+		case RNN_TTYPE_HEX:
+		case RNN_TTYPE_UINT:
+		case RNN_TTYPE_A3XX_REGID:
+			typename = "uint32_t";
+			break;
+		case RNN_TTYPE_INT:
+			typename = "int32_t";
+			break;
+		case RNN_TTYPE_FLOAT:
+			typename = "float";
+			break;
+		case RNN_TTYPE_ENUM:
+			asprintf(&typename, "enum %s", ti->name);
+			break;
+		default:
+			break;
+		}
+	}
+
+	/* for boolean, just generate a #define flag.. rather than inline fxn */
+	if (bf && (intype == RNN_TTYPE_BOOLEAN)) {
+		printdef(bf->fullname, 0, 0, mask, file);
+		return;
+	}
+
+	if (typename) {
+		printdef(prefix, "MASK", 0, mask, file);
+		printdef(prefix, "SHIFT", 1, ti->low, file);
+
+		fprintf(dst, "static inline uint32_t %s(%s val)\n", prefix, typename);
+		fprintf(dst, "{\n");
+
+		if ((ti->minvalid || ti->maxvalid || ti->alignvalid) && !no_asserts) {
+			fprintf(dst, "\tassert(1");
+			if (ti->minvalid)
+				fprintf(dst, " && (val >= %"PRIu64")", ti->min);
+			if (ti->maxvalid)
+				fprintf(dst, " && (val <= %"PRIu64")", ti->max);
+			if (ti->alignvalid)
+				fprintf(dst, " && !(val %% %"PRIu64")", ti->align);
+			fprintf(dst, ");\n");
+		}
+
+		if (ti->shr && !no_asserts) {
+			fprintf(dst, "\tassert(!(val & 0x%x));\n", (1 << ti->shr) - 1);
+		}
+
+		fprintf(dst, "\treturn ((");
+
+		if (ti->type == RNN_TTYPE_FIXED) {
+			fprintf(dst, "((int32_t)(val * %d.0))", (1 << ti->radix));
+		} else if (ti->type == RNN_TTYPE_UFIXED) {
+			fprintf(dst, "((uint32_t)(val * %d.0))", (1 << ti->radix));
+		} else if (ti->type == RNN_TTYPE_FLOAT) {
+			if (width == 32)
+				fprintf(dst, "fui(val)");
+			else if (width == 16)
+				fprintf(dst, "util_float_to_half(val)");
+			else
+				assert(!"invalid float size");
+		} else {
+			fprintf(dst, "val");
+		}
+
+		if (ti->shr)
+			fprintf(dst, " >> %d", ti->shr);
+
+		fprintf(dst, ") << %s__SHIFT) & %s__MASK;\n", prefix, prefix);
+		fprintf(dst, "}\n");
+
+		if (intype == RNN_TTYPE_ENUM)
+			free(typename);
+	}
+
+	int i;
+	for (i = 0; i < ti->valsnum; i++)
+		printvalue(ti->vals[i], ti->low);
+	for (i = 0; i < ti->bitfieldsnum; i++)
+		printbitfield(ti->bitfields[i], ti->low);
+}
+
+static void printbitfield (struct rnnbitfield *bf, int shift) {
+	if (bf->varinfo.dead)
+		return;
+	printtypeinfo (&bf->typeinfo, bf, bf->fullname, bf->file);
+}
+
+static void printdelem (struct rnndelem *elem, uint64_t offset) {
+	int use_offset_fxn;
+	char *offsetfn = NULL;
+
+	if (elem->varinfo.dead)
+		return;
+
+	use_offset_fxn = elem->offsets || elem->doffset || elem->doffsets;
+	assert((!!elem->offsets + !!elem->doffset + !!elem->doffsets) <= 1);
+
+	if (use_offset_fxn)
+		asprintf(&offsetfn, "__offset_%s", elem->name);
+
+	if (elem->length != 1) {
+		ADDARRAY(elems, elem);
+		ADDARRAY(offsetfns, offsetfn);
+	}
+
+	if (elem->name) {
+		char *regname;
+		asprintf(&regname, "REG_%s", elem->fullname);
+		if (elemsnum) {
+			int len;
+			FILE *dst = findfout(elem->file);
+			int i;
+
+			if (use_offset_fxn) {
+				fprintf(dst, "static inline uint32_t %s(", offsetfn);
+				if (elem->index)
+					fprintf(dst, "enum %s", elem->index->name);
+				else
+					fprintf(dst, "uint32_t");
+				fprintf(dst, " idx)\n");
+				fprintf(dst, "{\n");
+				if (elem->doffset) {
+					fprintf(dst, "\treturn (%s) + (%#" PRIx64 "*idx);\n", elem->doffset, elem->stride);
+				} else {
+					int valuesnum = elem->doffsets ? elem->doffsetsnum : elem->offsetsnum;
+
+					fprintf(dst, "\tswitch (idx) {\n");
+					for (i = 0; i < valuesnum; i++) {
+						struct rnnvalue *val = NULL;
+						fprintf(dst, "\t\tcase ");
+						if (elem->index) {
+							int j;
+							for (j = 0; j < elem->index->valsnum; j++) {
+								if (elem->index->vals[j]->value == i) {
+									val = elem->index->vals[j];
+									break;
+								}
+							}
+						}
+						if (val) {
+							fprintf(dst, "%s", val->name);
+						} else {
+							fprintf(dst, "%d", i);
+						}
+						if (elem->offsets) {
+							fprintf(dst, ": return 0x%08"PRIx64";\n", elem->offsets[i]);
+						} else {
+							fprintf(dst, ": return (%s);\n", elem->doffsets[i]);
+						}
+					}
+					fprintf(dst, "\t\tdefault: return INVALID_IDX(idx);\n");
+					fprintf(dst, "\t}\n");
+				}
+				fprintf(dst, "}\n");
+			}
+			fprintf (dst, "static inline uint32_t %s(", regname);
+			for (i = 0; i < elemsnum; i++) {
+				if (i)
+					fprintf(dst, ", ");
+				if (elems[i]->index)
+					fprintf(dst, "enum %s ", elems[i]->index->name);
+				else
+					fprintf(dst, "uint32_t ");
+				fprintf (dst, "i%d%n", i, &len);
+			}
+			fprintf (dst, ") { return ");
+			fprintf (dst, "0x%08"PRIx64"", offset + elem->offset);
+			for (i = 0; i < elemsnum; i++) {
+				if (offsetfns[i])
+					fprintf(dst, " + %s(i%d)", offsetfns[i], i);
+				else
+					fprintf (dst, " + %#" PRIx64 "*i%d", elems[i]->stride, i);
+			}
+			fprintf (dst, "; }\n");
+		} else
+			printdef (regname, 0, 0, offset + elem->offset, elem->file);
+
+		free(regname);
+/*
+		if (elem->stride)
+			printdef (elem->fullname, "ESIZE", 0, elem->stride, elem->file);
+		if (elem->length != 1)
+			printdef (elem->fullname, "LEN", 0, elem->length, elem->file);
+*/
+		printtypeinfo (&elem->typeinfo, NULL, elem->fullname, elem->file);
+	}
+	fprintf (findfout(elem->file), "\n");
+	int j;
+	for (j = 0; j < elem->subelemsnum; j++) {
+		printdelem(elem->subelems[j], offset + elem->offset);
+	}
+	if (elem->length != 1) {
+		elemsnum--;
+		offsetfnsnum--;
+	}
+	free(offsetfn);
+}
+
+static void print_file_info_(FILE *dst, struct stat* sb, struct tm* tm)
+{
+	char timestr[64];
+	strftime(timestr, sizeof(timestr), "%Y-%m-%d %H:%M:%S", tm);
+	fprintf(dst, "(%7Lu bytes, from %s)\n", (unsigned long long)sb->st_size, timestr);
+}
+
+static void print_file_info(FILE *dst, const char* file)
+{
+	struct stat sb;
+	struct tm tm;
+	stat(file, &sb);
+	gmtime_r(&sb.st_mtime, &tm);
+	print_file_info_(dst, &sb, &tm);
+}
+
+static void printhead(struct fout f, struct rnndb *db) {
+	int i, j;
+	struct stat sb;
+	struct tm tm;
+	stat(f.name, &sb);
+	gmtime_r(&sb.st_mtime, &tm);
+	fprintf (f.file, "#ifndef %s\n", f.guard);
+	fprintf (f.file, "#define %s\n", f.guard);
+	fprintf (f.file, "\n");
+	fprintf(f.file,
+		"/* Autogenerated file, DO NOT EDIT manually!\n"
+		"\n"
+		"This file was generated by the rules-ng-ng headergen tool in this git repository:\n"
+		"http://github.com/freedreno/envytools/\n"
+		"git clone https://github.com/freedreno/envytools.git\n"
+		"\n"
+		"The rules-ng-ng source files this header was generated from are:\n");
+	unsigned maxlen = 0;
+	for(i = 0; i < db->filesnum; ++i) {
+		unsigned len = strlen(db->files[i]);
+		if(len > maxlen)
+			maxlen = len;
+	}
+	for(i = 0; i < db->filesnum; ++i) {
+		unsigned len = strlen(db->files[i]);
+		fprintf(f.file, "- %s%*s ", db->files[i], maxlen - len, "");
+		print_file_info(f.file, db->files[i]);
+	}
+	fprintf(f.file,
+		"\n"
+		"Copyright (C) ");
+	if(db->copyright.firstyear && db->copyright.firstyear < (1900 + tm.tm_year))
+		fprintf(f.file, "%u-", db->copyright.firstyear);
+	fprintf(f.file, "%u", 1900 + tm.tm_year);
+	if(db->copyright.authorsnum) {
+		fprintf(f.file, " by the following authors:");
+		for(i = 0; i < db->copyright.authorsnum; ++i) {
+			fprintf(f.file, "\n- ");
+			if(db->copyright.authors[i]->name)
+				fprintf(f.file, "%s", db->copyright.authors[i]->name);
+			if(db->copyright.authors[i]->email)
+				fprintf(f.file, " <%s>", db->copyright.authors[i]->email);
+			if(db->copyright.authors[i]->nicknamesnum) {
+				for(j = 0; j < db->copyright.authors[i]->nicknamesnum; ++j) {
+					fprintf(f.file, "%s%s", (j ? ", " : " ("), db->copyright.authors[i]->nicknames[j]);
+				}
+				fprintf(f.file, ")");
+			}
+		}
+	}
+	fprintf(f.file, "\n");
+	if(db->copyright.license)
+		fprintf(f.file, "\n%s\n", db->copyright.license);
+	fprintf(f.file, "*/\n\n\n");
+}
+
+int main(int argc, char **argv) {
+	char *file;
+	struct rnndb *db;
+	int i, j;
+
+	if (argc < 2) {
+		fprintf(stderr, "Usage:\n\theadergen database-file\n");
+		exit(1);
+	}
+
+	if ((argc >= 3) && !strcmp(argv[1], "--no-asserts")) {
+		no_asserts = true;
+		file = argv[2];
+	} else {
+		file = argv[1];
+	}
+
+	rnn_init();
+	db = rnn_newdb();
+	rnn_parsefile (db, file);
+	rnn_prepdb (db);
+	for(i = 0; i < db->filesnum; ++i) {
+		char *dstname = malloc(strlen(db->files[i]) + 3);
+		char *pretty;
+		strcpy(dstname, db->files[i]);
+		strcat(dstname, ".h");
+		struct fout f = { db->files[i], fopen(dstname, "w") };
+		if (!f.file) {
+			perror(dstname);
+			exit(1);
+		}
+		free(dstname);
+		pretty = strrchr(f.name, '/');
+		if (pretty)
+			pretty += 1;
+		else
+			pretty = f.name;
+		f.guard = strdup(pretty);
+		for (j = 0; j < strlen(f.guard); j++)
+			if (isalnum(f.guard[j]))
+				f.guard[j] = toupper(f.guard[j]);
+			else
+				f.guard[j] = '_';
+		ADDARRAY(fouts, f);
+		printhead(f, db);
+	}
+
+	for (i = 0; i < db->enumsnum; i++) {
+		FILE *dst = NULL;
+		int j;
+		for (j = 0; j < db->enums[i]->valsnum; j++) {
+			if (!dst) {
+				dst = findfout(db->enums[i]->vals[j]->file);
+				fprintf(dst, "enum %s {\n", db->enums[i]->name);
+			}
+			if (0xffff0000 & db->enums[i]->vals[j]->value)
+				fprintf(dst, "\t%s = 0x%08"PRIx64",\n", db->enums[i]->vals[j]->name,
+						db->enums[i]->vals[j]->value);
+			else
+				fprintf(dst, "\t%s = %"PRIu64",\n", db->enums[i]->vals[j]->name,
+						db->enums[i]->vals[j]->value);
+		}
+		if (dst) {
+			fprintf(dst, "};\n\n");
+		}
+	}
+	for (i = 0; i < db->bitsetsnum; i++) {
+		if (db->bitsets[i]->isinline)
+			continue;
+		int j;
+		for (j = 0; j < db->bitsets[i]->bitfieldsnum; j++)
+			printbitfield (db->bitsets[i]->bitfields[j], 0);
+	}
+	for (i = 0; i < db->domainsnum; i++) {
+		if (db->domains[i]->size)
+			printdef (db->domains[i]->fullname, "SIZE", 0, db->domains[i]->size, db->domains[i]->file);
+		int j;
+		for (j = 0; j < db->domains[i]->subelemsnum; j++) {
+			printdelem(db->domains[i]->subelems[j], 0);
+		}
+	}
+	for(i = 0; i < foutsnum; ++i) {
+		fprintf (fouts[i].file, "\n#endif /* %s */\n", fouts[i].guard);
+	}
+	return db->estatus;
+}
diff --git a/drivers/gpu/drm/msm/headergen2/path.c b/drivers/gpu/drm/msm/headergen2/path.c
new file mode 100644
index 000000000000..f8ef885d891d
--- /dev/null
+++ b/drivers/gpu/drm/msm/headergen2/path.c
@@ -0,0 +1,64 @@ 
+/*
+ * Copyright (C) 2011 Marcin Kościelnicki <koriakin@0x04.net>
+ * All Rights Reserved.
+ *
+ * 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.
+ */
+
+#include "util.h"
+#include <string.h>
+
+FILE *find_in_path(const char *name, const char *path, char **pfullname) {
+	if (!path)
+		return 0;
+	while (path) {
+		const char *npath = strchr(path, ':');
+		size_t plen;
+		if (npath) {
+			plen = npath - path;
+			npath++;
+		} else {
+			plen = strlen(path);
+		}
+		if (plen) {
+			/* also look for .gz compressed xml: */
+			const char *exts[] = { "", ".gz" };
+			for (int i = 0; i < ARRAY_SIZE(exts); i++) {
+				char *fullname;
+
+				int ret = asprintf(&fullname, "%.*s/%s%s", (int)plen, path, name, exts[i]);
+				if (ret < 0)
+					return NULL;
+
+				FILE *file = fopen(fullname, "r");
+				if (file) {
+					if (pfullname)
+						*pfullname = fullname;
+					else
+						free(fullname);
+					return file;
+				}
+				free(fullname);
+			}
+		}
+		path = npath;
+	}
+	return 0;
+}
diff --git a/drivers/gpu/drm/msm/headergen2/rnn.c b/drivers/gpu/drm/msm/headergen2/rnn.c
new file mode 100644
index 000000000000..d82d2a561b02
--- /dev/null
+++ b/drivers/gpu/drm/msm/headergen2/rnn.c
@@ -0,0 +1,1360 @@ 
+/*
+ * Copyright (C) 2010-2011 Marcin Kościelnicki <koriakin@0x04.net>
+ * Copyright (C) 2010 Luca Barbieri <luca@luca-barbieri.com>
+ * Copyright (C) 2010 Francisco Jerez <currojerez@riseup.net>
+ * Copyright (C) 2010 Martin Peres <martin.peres@ensi-bourges.fr>
+ * Copyright (C) 2010 Marcin Slusarz <marcin.slusarz@gmail.com>
+ * All Rights Reserved.
+ *
+ * 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.
+ */
+
+/* workaround libxml2 silliness: */
+#pragma GCC diagnostic ignored "-Wpointer-sign"
+
+#include <libxml/xmlversion.h>
+#include <libxml/parser.h>
+#include <libxml/xpath.h>
+#include <libxml/xmlreader.h>
+#include <stdint.h>
+#include <string.h>
+#include <limits.h>
+#include <ctype.h>
+#include <stdio.h>
+#include "rnn.h"
+#include "util.h"
+
+#include "util/u_debug.h"
+
+static char *catstr (char *a, char *b) {
+	if (!a)
+		return b;
+	return aprintf("%s_%s", a, b);
+}
+
+static int strdiff (const char *a, const char *b) {
+	if (!a && !b)
+		return 0;
+	if (!a || !b)
+		return 1;
+	return strcmp (a, b);
+}
+
+static void rnn_err(struct rnndb *db, const char *format, ...) _util_printf_format(2, 3);
+
+static void rnn_err(struct rnndb *db, const char *format, ...)
+{
+	va_list ap;
+	va_start(ap, format);
+	vfprintf(stderr, format, ap);
+	va_end(ap);
+	db->estatus = 1;
+}
+
+void rnn_init(void) {
+	LIBXML_TEST_VERSION
+	xmlInitParser();
+}
+
+struct rnndb *rnn_newdb(void) {
+	struct rnndb *db = calloc(sizeof *db, 1);
+	return db;
+}
+
+static char *getcontent (xmlNode *attr) {
+	xmlNode *chain = attr->children;
+	size_t size = 0;
+	char *content, *p;
+	while (chain) {
+		if (chain->type == XML_TEXT_NODE)
+			size += strlen(chain->content);
+		chain = chain->next;
+	}
+	p = content = malloc(size + 1);
+	chain = attr->children;
+	while (chain) {
+		if (chain->type == XML_TEXT_NODE) {
+			char* sp = chain->content;
+			if(p == content) {
+				while(isspace(*sp))
+					++sp;
+			}
+			size_t len = strlen(sp);
+			memcpy(p, sp, len);
+			p += len;
+		}
+		chain = chain->next;
+	}
+	while(p != content && isspace(p[-1]))
+		--p;
+	*p = 0;
+	return content;
+}
+
+static char *getattrib (struct rnndb *db, char *file, int line, xmlAttr *attr) {
+	xmlNode *chain = attr->children;
+	while (chain) {
+		if (chain->type != XML_TEXT_NODE) {
+			rnn_err(db, "%s:%d: unknown attribute child \"%s\" in attribute \"%s\"\n", file, line, chain->name, attr->name);
+		} else {
+			return chain->content;
+		}
+		chain = chain->next;
+	}
+	return "";
+}
+
+static int getboolattrib (struct rnndb *db, char *file, int line, xmlAttr *attr) {
+	char *c = getattrib(db, file, line, attr);
+	if (!strcmp(c, "yes") || !strcmp(c, "1") || !strcmp(c, "true"))
+		return 1;
+	if (!strcmp(c, "no") || !strcmp(c, "0") || !strcmp(c, "false"))
+		return 0;
+	rnn_err(db, "%s:%d: invalid boolean value \"%s\" in attribute \"%s\"\n", file, line, c, attr->name);
+	return 0;
+}
+
+static uint64_t getnum(struct rnndb *db, char *file, int line, xmlAttr *attr, char *c)
+{
+	char *cc;
+	uint64_t res;
+	if (strchr(c, 'x') || strchr(c, 'X'))
+		res = strtoull(c, &cc, 16);
+	else
+		res = strtoull(c, &cc, 10);
+	if (*cc)  {
+		rnn_err(db, "%s:%d: invalid numeric value \"%s\" in attribute \"%s\"\n", file, line, c, attr->name);
+	}
+	return res;
+}
+
+static uint64_t getnumattrib (struct rnndb *db, char *file, int line, xmlAttr *attr) {
+	char *c = getattrib(db, file, line, attr);
+	return getnum(db, file, line, attr, c);
+}
+
+static int trytop (struct rnndb *db, char *file, xmlNode *node);
+
+static int trydoc (struct rnndb *db, char *file, xmlNode *node) {
+	if (!strcmp(node->name, "brief")) {
+		return 1;
+	} else if (!strcmp(node->name, "doc")) {
+		return 1;
+	}
+	return 0;
+}
+
+static struct rnnvalue *parsevalue(struct rnndb *db, char *file, xmlNode *node);
+static struct rnnbitfield *parsebitfield(struct rnndb *db, char *file, xmlNode *node);
+
+static int trytypetag (struct rnndb *db, char *file, xmlNode *node, struct rnntypeinfo *ti) {
+	if (!strcmp(node->name, "value")) {
+		struct rnnvalue *val = parsevalue(db, file, node);
+		if (val)
+			ADDARRAY(ti->vals, val);
+		return 1;
+	} else if (!strcmp(node->name, "bitfield")) {
+		struct rnnbitfield *bf = parsebitfield(db, file, node);
+		if (bf)
+			ADDARRAY(ti->bitfields, bf);
+		return 1;
+	}
+	return 0;
+}
+static int trytypeattr (struct rnndb *db, char *file, xmlNode *node, xmlAttr *attr, struct rnntypeinfo *ti) {
+	if (!strcmp(attr->name, "shr")) {
+		ti->shr = getnumattrib(db, file, node->line, attr);
+		return 1;
+	} else if (!strcmp(attr->name, "min")) {
+		ti->min = getnumattrib(db, file, node->line, attr);
+		ti->minvalid = 1;
+		return 1;
+	} else if (!strcmp(attr->name, "max")) {
+		ti->max = getnumattrib(db, file, node->line, attr);
+		ti->maxvalid = 1;
+		return 1;
+	} else if (!strcmp(attr->name, "align")) {
+		ti->align = getnumattrib(db, file, node->line, attr);
+		ti->alignvalid = 1;
+		return 1;
+	} else if (!strcmp(attr->name, "type")) {
+		ti->name = strdup(getattrib(db, file, node->line, attr));;
+		return 1;
+	} else if (!strcmp(attr->name, "radix")) {
+		ti->radix = getnumattrib(db, file, node->line, attr);
+		ti->radixvalid = 1;
+		return 1;
+	} else if (!strcmp(attr->name, "pos")) {
+		ti->high = ti->low = getnumattrib(db, file, node->line, attr);
+		return 1;
+	} else if (!strcmp(attr->name, "low")) {
+		ti->low = getnumattrib(db, file, node->line, attr);
+		return 1;
+	} else if (!strcmp(attr->name, "high")) {
+		ti->high = getnumattrib(db, file, node->line, attr);
+		return 1;
+	} else if (!strcmp(attr->name, "addvariant")) {
+		ti->addvariant = getboolattrib(db, file, node->line, attr);
+		return 1;
+	}
+	return 0;
+}
+
+static struct rnnvalue *parsevalue(struct rnndb *db, char *file, xmlNode *node) {
+	struct rnnvalue *val = calloc(sizeof *val, 1);
+	val->file = file;
+	xmlAttr *attr = node->properties;
+	while (attr) {
+		if (!strcmp(attr->name, "name")) {
+			val->name = strdup(getattrib(db, file, node->line, attr));
+		} else if (!strcmp(attr->name, "value")) {
+			val->value = getnumattrib(db, file, node->line, attr);
+			val->valvalid = 1;
+		} else if (!strcmp(attr->name, "varset")) {
+			val->varinfo.varsetstr = strdup(getattrib(db, file, node->line, attr));
+		} else if (!strcmp(attr->name, "variants")) {
+			val->varinfo.variantsstr = strdup(getattrib(db, file, node->line, attr));
+		} else {
+			rnn_err(db, "%s:%d: wrong attribute \"%s\" for value\n", file, node->line, attr->name);
+		}
+		attr = attr->next;
+	}
+	xmlNode *chain = node->children;
+	while (chain) {
+		if (chain->type != XML_ELEMENT_NODE) {
+		} else if (!trytop(db, file, chain) && !trydoc(db, file, chain)) {
+			rnn_err(db, "%s:%d: wrong tag in %s: <%s>\n", file, chain->line, node->name, chain->name);
+		}
+		chain = chain->next;
+	}
+	if (!val->name) {
+		rnn_err(db, "%s:%d: nameless value\n", file, node->line);
+		return 0;
+	} else {
+		return val;
+	}
+}
+
+static void parsespectype(struct rnndb *db, char *file, xmlNode *node) {
+	struct rnnspectype *res = calloc (sizeof *res, 1);
+	res->file = file;
+	xmlAttr *attr = node->properties;
+	int i;
+	while (attr) {
+		if (!strcmp(attr->name, "name")) {
+			res->name = strdup(getattrib(db, file, node->line, attr));
+		} else if (!trytypeattr(db, file, node, attr, &res->typeinfo)) {
+			rnn_err(db, "%s:%d: wrong attribute \"%s\" for spectype\n", file, node->line, attr->name);
+		}
+		attr = attr->next;
+	}
+	if (!res->name) {
+		rnn_err(db, "%s:%d: nameless spectype\n", file, node->line);
+		return;
+	}
+	for (i = 0; i < db->spectypesnum; i++)
+		if (!strcmp(db->spectypes[i]->name, res->name)) {
+			rnn_err(db, "%s:%d: duplicated spectype name %s\n", file, node->line, res->name);
+			return;
+		}
+	ADDARRAY(db->spectypes, res);
+	xmlNode *chain = node->children;
+	while (chain) {
+		if (chain->type != XML_ELEMENT_NODE) {
+		} else if (!trytypetag(db, file, chain, &res->typeinfo) && !trytop(db, file, chain) && !trydoc(db, file, chain)) {
+			rnn_err(db, "%s:%d: wrong tag in spectype: <%s>\n", file, chain->line, chain->name);
+		}
+		chain = chain->next;
+	}
+}
+
+static void parseenum(struct rnndb *db, char *file, xmlNode *node) {
+	xmlAttr *attr = node->properties;
+	char *name = 0;
+	int isinline = 0;
+	int bare = 0;
+	char *prefixstr = 0;
+	char *varsetstr = 0;
+	char *variantsstr = 0;
+	int i;
+	while (attr) {
+		if (!strcmp(attr->name, "name")) {
+			name = getattrib(db, file, node->line, attr);
+		} else if (!strcmp(attr->name, "bare")) {
+			bare = getboolattrib(db, file, node->line, attr);
+		} else if (!strcmp(attr->name, "inline")) {
+			isinline = getboolattrib(db, file, node->line, attr);
+		} else if (!strcmp(attr->name, "prefix")) {
+			prefixstr = strdup(getattrib(db, file, node->line, attr));
+		} else if (!strcmp(attr->name, "varset")) {
+			varsetstr = strdup(getattrib(db, file, node->line, attr));
+		} else if (!strcmp(attr->name, "variants")) {
+			variantsstr = strdup(getattrib(db, file, node->line, attr));
+		} else {
+			rnn_err(db, "%s:%d: wrong attribute \"%s\" for enum\n", file, node->line, attr->name);
+		}
+		attr = attr->next;
+	}
+	if (!name) {
+		rnn_err(db, "%s:%d: nameless enum\n", file, node->line);
+		return;
+	}
+	struct rnnenum *cur = 0;
+	for (i = 0; i < db->enumsnum; i++)
+		if (!strcmp(db->enums[i]->name, name)) {
+			cur = db->enums[i];
+			break;
+		}
+	if (cur) {
+		if (strdiff(cur->varinfo.prefixstr, prefixstr) ||
+				strdiff(cur->varinfo.varsetstr, varsetstr) ||
+				strdiff(cur->varinfo.variantsstr, variantsstr) ||
+				cur->isinline != isinline || cur->bare != bare) {
+			rnn_err(db, "%s:%d: merge fail for enum %s\n", file, node->line, node->name);
+		}
+	} else {
+		cur = calloc(sizeof *cur, 1);
+		cur->name = strdup(name);
+		cur->isinline = isinline;
+		cur->bare = bare;
+		cur->varinfo.prefixstr = prefixstr;
+		cur->varinfo.varsetstr = varsetstr;
+		cur->varinfo.variantsstr = variantsstr;
+		cur->file = file;
+		ADDARRAY(db->enums, cur);
+	}
+	xmlNode *chain = node->children;
+	while (chain) {
+		if (chain->type != XML_ELEMENT_NODE) {
+		} else if (!strcmp(chain->name, "value")) {
+			struct rnnvalue *val = parsevalue(db, file, chain);
+			if (val)
+				ADDARRAY(cur->vals, val);
+		} else if (!trytop(db, file, chain) && !trydoc(db, file, chain)) {
+			rnn_err(db, "%s:%d: wrong tag in enum: <%s>\n", file, chain->line, chain->name);
+		}
+		chain = chain->next;
+	}
+}
+
+static struct rnnbitfield *parsebitfield(struct rnndb *db, char *file, xmlNode *node) {
+	struct rnnbitfield *bf = calloc(sizeof *bf, 1);
+	bf->file = file;
+	xmlAttr *attr = node->properties;
+	bf->typeinfo.low = bf->typeinfo.high = -1;
+	while (attr) {
+		if (!strcmp(attr->name, "name")) {
+			bf->name = strdup(getattrib(db, file, node->line, attr));
+		} else if (!strcmp(attr->name, "varset")) {
+			bf->varinfo.varsetstr = strdup(getattrib(db, file, node->line, attr));
+		} else if (!strcmp(attr->name, "variants")) {
+			bf->varinfo.variantsstr = strdup(getattrib(db, file, node->line, attr));
+		} else if (!trytypeattr(db, file, node, attr, &bf->typeinfo)) {
+			rnn_err(db, "%s:%d: wrong attribute \"%s\" for bitfield\n", file, node->line, attr->name);
+		}
+		attr = attr->next;
+	}
+	xmlNode *chain = node->children;
+	while (chain) {
+		if (chain->type != XML_ELEMENT_NODE) {
+		} else if (!trytypetag(db, file, chain, &bf->typeinfo) && !trytop(db, file, chain) && !trydoc(db, file, chain)) {
+			rnn_err(db, "%s:%d: wrong tag in %s: <%s>\n", file, chain->line, node->name, chain->name);
+		}
+		chain = chain->next;
+	}
+	if (!bf->name) {
+		rnn_err(db, "%s:%d: nameless bitfield\n", file, node->line);
+		return 0;
+	} else if (bf->typeinfo.low < 0|| bf->typeinfo.high < 0 || bf->typeinfo.high < bf->typeinfo.low) {
+		rnn_err(db, "%s:%d: bitfield has wrong placement\n", file, node->line);
+		return 0;
+	} else {
+		return bf;
+	}
+}
+
+static void parsebitset(struct rnndb *db, char *file, xmlNode *node) {
+	xmlAttr *attr = node->properties;
+	char *name = 0;
+	int isinline = 0;
+	int bare = 0;
+	char *prefixstr = 0;
+	char *varsetstr = 0;
+	char *variantsstr = 0;
+	int i;
+	while (attr) {
+		if (!strcmp(attr->name, "name")) {
+			name = getattrib(db, file, node->line, attr);
+		} else if (!strcmp(attr->name, "bare")) {
+			bare = getboolattrib(db, file, node->line, attr);
+		} else if (!strcmp(attr->name, "inline")) {
+			isinline = getboolattrib(db, file, node->line, attr);
+		} else if (!strcmp(attr->name, "prefix")) {
+			prefixstr = strdup(getattrib(db, file, node->line, attr));
+		} else if (!strcmp(attr->name, "varset")) {
+			varsetstr = strdup(getattrib(db, file, node->line, attr));
+		} else if (!strcmp(attr->name, "variants")) {
+			variantsstr = strdup(getattrib(db, file, node->line, attr));
+		} else {
+			rnn_err(db, "%s:%d: wrong attribute \"%s\" for bitset\n", file, node->line, attr->name);
+		}
+		attr = attr->next;
+	}
+	if (!name) {
+		rnn_err(db, "%s:%d: nameless bitset\n", file, node->line);
+		return;
+	}
+	struct rnnbitset *cur = 0;
+	for (i = 0; i < db->bitsetsnum; i++)
+		if (!strcmp(db->bitsets[i]->name, name)) {
+			cur = db->bitsets[i];
+			break;
+		}
+	if (cur) {
+		if (strdiff(cur->varinfo.prefixstr, prefixstr) ||
+				strdiff(cur->varinfo.varsetstr, varsetstr) ||
+				strdiff(cur->varinfo.variantsstr, variantsstr) ||
+				cur->isinline != isinline || cur->bare != bare) {
+			rnn_err(db, "%s:%d: merge fail for bitset %s\n", file, node->line, node->name);
+		}
+	} else {
+		cur = calloc(sizeof *cur, 1);
+		cur->name = strdup(name);
+		cur->isinline = isinline;
+		cur->bare = bare;
+		cur->varinfo.prefixstr = prefixstr;
+		cur->varinfo.varsetstr = varsetstr;
+		cur->varinfo.variantsstr = variantsstr;
+		cur->file = file;
+		ADDARRAY(db->bitsets, cur);
+	}
+	xmlNode *chain = node->children;
+	while (chain) {
+		if (chain->type != XML_ELEMENT_NODE) {
+		} else if (!strcmp(chain->name, "bitfield")) {
+			struct rnnbitfield *bf = parsebitfield(db, file, chain);
+			if (bf)
+				ADDARRAY(cur->bitfields, bf);
+		} else if (!trytop(db, file, chain) && !trydoc(db, file, chain)) {
+			rnn_err(db, "%s:%d: wrong tag in bitset: <%s>\n", file, chain->line, chain->name);
+		}
+		chain = chain->next;
+	}
+}
+
+static struct rnndelem *trydelem(struct rnndb *db, char *file, xmlNode *node) {
+	if (!strcmp(node->name, "use-group")) {
+		struct rnndelem *res = calloc(sizeof *res, 1);
+		res->file = file;
+		res->type = RNN_ETYPE_USE_GROUP;
+		xmlAttr *attr = node->properties;
+		while (attr) {
+			if (!strcmp(attr->name, "ref")) {
+				res->name = strdup(getattrib(db, file, node->line, attr));
+			} else {
+				rnn_err(db, "%s:%d: wrong attribute \"%s\" for %s\n", file, node->line, attr->name, node->name);
+			}
+			attr = attr->next;
+		}
+		if (!res->name) {
+			rnn_err(db, "%s:%d: nameless use-group\n", file, node->line);
+			return 0;
+		}
+		return res;
+	} else if (!strcmp(node->name, "stripe") || !strcmp(node->name, "array")) {
+		struct rnndelem *res = calloc(sizeof *res, 1);
+		if (!strcmp(node->name, "array"))
+			res->name = "";
+		res->type = (strcmp(node->name, "stripe")?RNN_ETYPE_ARRAY:RNN_ETYPE_STRIPE);
+		res->length = 1;
+		res->file = file;
+		xmlAttr *attr = node->properties;
+		while (attr) {
+			if (!strcmp(attr->name, "name")) {
+				res->name = strdup(getattrib(db, file, node->line, attr));
+			} else if (!strcmp(attr->name, "offset")) {
+				res->offset = getnumattrib(db, file, node->line, attr);
+			} else if (!strcmp(attr->name, "offsets")) {
+				char *str = strdup(getattrib(db, file, node->line, attr));
+				char *tok, *save, *tmp = str;
+				while ((tok = strtok_r(str, ",", &save))) {
+					uint64_t offset = getnum(db, file, node->line, attr, tok);
+					ADDARRAY(res->offsets, offset);
+					str = NULL;
+				}
+				if (str)
+					fprintf(stderr, "%s:%d: invalid offsets: %s\n", file, node->line, str);
+				free(tmp);
+			} else if (!strcmp(attr->name, "doffset")) {
+				/* dynamic runtime determined offset: */
+				res->doffset = strdup(getattrib(db, file, node->line, attr));
+			} else if (!strcmp(attr->name, "doffsets")) {
+				/* dynamic runtime determined offsets: */
+				char *str = strdup(getattrib(db, file, node->line, attr));
+				char *tok, *save, *tmp = str;
+				while ((tok = strtok_r(str, ",", &save))) {
+					char *doffset = strdup(tok);
+					ADDARRAY(res->doffsets, doffset);
+					str = NULL;
+				}
+				if (str)
+					fprintf(stderr, "%s:%d: invalid offsets: %s\n", file, node->line, str);
+				free(tmp);
+			} else if (!strcmp(attr->name, "length")) {
+				res->length = getnumattrib(db, file, node->line, attr);
+			} else if (!strcmp(attr->name, "stride")) {
+				res->stride = getnumattrib(db, file, node->line, attr);
+			} else if (!strcmp(attr->name, "prefix")) {
+				res->varinfo.prefixstr = strdup(getattrib(db, file, node->line, attr));
+			} else if (!strcmp(attr->name, "varset")) {
+				res->varinfo.varsetstr = strdup(getattrib(db, file, node->line, attr));
+			} else if (!strcmp(attr->name, "variants")) {
+				res->varinfo.variantsstr = strdup(getattrib(db, file, node->line, attr));
+			} else if (!strcmp(attr->name, "index")) {
+				const char *enumname = getattrib(db, file, node->line, attr);
+				res->index = rnn_findenum(db, enumname);
+				if (!res->index) {
+					rnn_err(db, "%s:%d: invalid enum name \"%s\"\n", file, node->line, enumname);
+				}
+			} else {
+				rnn_err(db, "%s:%d: wrong attribute \"%s\" for %s\n", file, node->line, attr->name, node->name);
+			}
+			attr = attr->next;
+		}
+		xmlNode *chain = node->children;
+		while (chain) {
+			struct rnndelem *delem;
+			if (chain->type != XML_ELEMENT_NODE) {
+			} else if ((delem = trydelem(db, file, chain))) {
+				ADDARRAY(res->subelems, delem);
+			} else if (!trytop(db, file, chain) && !trydoc(db, file, chain)) {
+				rnn_err(db, "%s:%d: wrong tag in %s: <%s>\n", file, chain->line, node->name, chain->name);
+			}
+			chain = chain->next;
+		}
+
+		/* Sanity checking */
+		if (res->type == RNN_ETYPE_ARRAY && res->stride == 0) {
+			fprintf(stderr, "%s: Array %s's stride is undefined. Aborting.\n", file, res->name);
+			exit(-1);
+		}
+		return res;
+
+	}
+	int width;
+	if (!strcmp(node->name, "reg8"))
+		width = 8;
+	else if (!strcmp(node->name, "reg16"))
+		width = 16;
+	else if (!strcmp(node->name, "reg32"))
+		width = 32;
+	else if (!strcmp(node->name, "reg64"))
+		width = 64;
+	else
+		return 0;
+	struct rnndelem *res = calloc(sizeof *res, 1);
+	res->file = file;
+	res->type = RNN_ETYPE_REG;
+	res->width = width;
+	res->length = 1;
+	res->access = RNN_ACCESS_RW;
+	xmlAttr *attr = node->properties;
+	res->typeinfo.low = 0;
+	res->typeinfo.high = width - 1;
+	while (attr) {
+		if (!strcmp(attr->name, "name")) {
+			res->name = strdup(getattrib(db, file, node->line, attr));
+		} else if (!strcmp(attr->name, "offset")) {
+			res->offset = getnumattrib(db, file, node->line, attr);
+		} else if (!strcmp(attr->name, "length")) {
+			res->length = getnumattrib(db, file, node->line, attr);
+		} else if (!strcmp(attr->name, "stride")) {
+			res->stride = getnumattrib(db, file, node->line, attr);
+		} else if (!strcmp(attr->name, "varset")) {
+			res->varinfo.varsetstr = strdup(getattrib(db, file, node->line, attr));
+		} else if (!strcmp(attr->name, "variants")) {
+			res->varinfo.variantsstr = strdup(getattrib(db, file, node->line, attr));
+		} else if (!strcmp(attr->name, "access")) {
+			char *str = getattrib(db, file, node->line, attr);
+			if (!strcmp(str, "r"))
+				res->access = RNN_ACCESS_R;
+			else if (!strcmp(str, "w"))
+				res->access = RNN_ACCESS_W;
+			else if (!strcmp(str, "rw"))
+				res->access = RNN_ACCESS_RW;
+			else
+				fprintf (stderr, "%s:%d: wrong access type \"%s\" for register\n", file, node->line, str);
+		} else if (!trytypeattr(db, file, node, attr, &res->typeinfo)) {
+			rnn_err(db, "%s:%d: wrong attribute \"%s\" for register\n", file, node->line, attr->name);
+		}
+		attr = attr->next;
+	}
+	xmlNode *chain = node->children;
+	while (chain) {
+		if (chain->type != XML_ELEMENT_NODE) {
+		} else if (!trytypetag(db, file, chain, &res->typeinfo) && !trytop(db, file, chain) && !trydoc(db, file, chain)) {
+			rnn_err(db, "%s:%d: wrong tag in %s: <%s>\n", file, chain->line, node->name, chain->name);
+		}
+		chain = chain->next;
+	}
+	if (!res->name) {
+		rnn_err(db, "%s:%d: nameless register\n", file, node->line);
+		return 0;
+	} else {
+	}
+	return res;
+}
+
+static void parsegroup(struct rnndb *db, char *file, xmlNode *node) {
+	xmlAttr *attr = node->properties;
+	char *name = 0;
+	int i;
+	while (attr) {
+		if (!strcmp(attr->name, "name")) {
+			name = getattrib(db, file, node->line, attr);
+		} else {
+			rnn_err(db, "%s:%d: wrong attribute \"%s\" for group\n", file, node->line, attr->name);
+		}
+		attr = attr->next;
+	}
+	if (!name) {
+		rnn_err(db, "%s:%d: nameless group\n", file, node->line);
+		return;
+	}
+	struct rnngroup *cur = 0;
+	for (i = 0; i < db->groupsnum; i++)
+		if (!strcmp(db->groups[i]->name, name)) {
+			cur = db->groups[i];
+			break;
+		}
+	if (!cur) {
+		cur = calloc(sizeof *cur, 1);
+		cur->name = strdup(name);
+		ADDARRAY(db->groups, cur);
+	}
+	xmlNode *chain = node->children;
+	while (chain) {
+		struct rnndelem *delem;
+		if (chain->type != XML_ELEMENT_NODE) {
+		} else if ((delem = trydelem(db, file, chain))) {
+			ADDARRAY(cur->subelems, delem);
+		} else if (!trytop(db, file, chain) && !trydoc(db, file, chain)) {
+			rnn_err(db, "%s:%d: wrong tag in group: <%s>\n", file, chain->line, chain->name);
+		}
+		chain = chain->next;
+	}
+}
+
+static void parsedomain(struct rnndb *db, char *file, xmlNode *node) {
+	xmlAttr *attr = node->properties;
+	char *name = 0;
+	uint64_t size = 0; int width = 8;
+	int bare = 0;
+	char *prefixstr = 0;
+	char *varsetstr = 0;
+	char *variantsstr = 0;
+	int i;
+	while (attr) {
+		if (!strcmp(attr->name, "name")) {
+			name = getattrib(db, file, node->line, attr);
+		} else if (!strcmp(attr->name, "bare")) {
+			bare = getboolattrib(db, file, node->line, attr);
+		} else if (!strcmp(attr->name, "size")) {
+			size = getnumattrib(db, file, node->line, attr);
+		} else if (!strcmp(attr->name, "width")) {
+			width = getnumattrib(db, file, node->line, attr);
+		} else if (!strcmp(attr->name, "prefix")) {
+			prefixstr = strdup(getattrib(db, file, node->line, attr));
+		} else if (!strcmp(attr->name, "varset")) {
+			varsetstr = strdup(getattrib(db, file, node->line, attr));
+		} else if (!strcmp(attr->name, "variants")) {
+			variantsstr = strdup(getattrib(db, file, node->line, attr));
+		} else {
+			rnn_err(db, "%s:%d: wrong attribute \"%s\" for domain\n", file, node->line, attr->name);
+		}
+		attr = attr->next;
+	}
+	if (!name) {
+		rnn_err(db, "%s:%d: nameless domain\n", file, node->line);
+		return;
+	}
+	struct rnndomain *cur = 0;
+	for (i = 0; i < db->domainsnum; i++)
+		if (!strcmp(db->domains[i]->name, name)) {
+			cur = db->domains[i];
+			break;
+		}
+	if (cur) {
+		if (strdiff(cur->varinfo.prefixstr, prefixstr) ||
+				strdiff(cur->varinfo.varsetstr, varsetstr) ||
+				strdiff(cur->varinfo.variantsstr, variantsstr) ||
+				cur->width != width ||
+				cur->bare != bare ||
+				(size && cur->size && size != cur->size)) {
+			rnn_err(db, "%s:%d: merge fail for domain %s\n", file, node->line, node->name);
+		} else {
+			if (size)
+				cur->size = size;
+		}
+	} else {
+		cur = calloc(sizeof *cur, 1);
+		cur->name = strdup(name);
+		cur->bare = bare;
+		cur->width = width;
+		cur->size = size;
+		cur->varinfo.prefixstr = prefixstr;
+		cur->varinfo.varsetstr = varsetstr;
+		cur->varinfo.variantsstr = variantsstr;
+		cur->file = file;
+		ADDARRAY(db->domains, cur);
+	}
+	xmlNode *chain = node->children;
+	while (chain) {
+		struct rnndelem *delem;
+		if (chain->type != XML_ELEMENT_NODE) {
+		} else if ((delem = trydelem(db, file, chain))) {
+			ADDARRAY(cur->subelems, delem);
+		} else if (!trytop(db, file, chain) && !trydoc(db, file, chain)) {
+			rnn_err(db, "%s:%d: wrong tag in domain: <%s>\n", file, chain->line, chain->name);
+		}
+		chain = chain->next;
+	}
+}
+
+static void parsecopyright(struct rnndb *db, char *file, xmlNode *node) {
+	struct rnncopyright* copyright = &db->copyright;
+	xmlAttr *attr = node->properties;
+	while (attr) {
+		if (!strcmp(attr->name, "year")) {
+			unsigned firstyear = getnumattrib(db, file, node->line, attr);
+			if(!copyright->firstyear || firstyear < copyright->firstyear)
+				copyright->firstyear = firstyear;
+		} else {
+			rnn_err(db, "%s:%d: wrong attribute \"%s\" for copyright\n", file, node->line, attr->name);
+		}
+		attr = attr->next;
+	}
+	xmlNode *chain = node->children;
+	while (chain) {
+		if (chain->type != XML_ELEMENT_NODE) {
+		} else if (!strcmp(chain->name, "license"))
+			if(copyright->license) {
+				if(strcmp(copyright->license, node->content)) {
+					fprintf(stderr, "fatal error: multiple different licenses specified!\n");
+					abort(); /* TODO: do something better here, but headergen, xml2html, etc. should not produce anything in this case */
+				}
+			} else
+				copyright->license = getcontent(chain);
+		else if (!strcmp(chain->name, "author")) {
+			struct rnnauthor* author = calloc(sizeof *author, 1);
+			xmlAttr* authorattr = chain->properties;
+			xmlNode *authorchild = chain->children;
+			author->contributions = getcontent(chain);
+			while (authorattr) {
+				if (!strcmp(authorattr->name, "name"))
+					author->name = strdup(getattrib(db, file, chain->line, authorattr));
+				else if (!strcmp(authorattr->name, "email"))
+					author->email = strdup(getattrib(db, file, chain->line, authorattr));
+				else {
+					rnn_err(db, "%s:%d: wrong attribute \"%s\" for author\n", file, chain->line, authorattr->name);
+				}
+				authorattr = authorattr->next;
+			}
+			while(authorchild)  {
+				if (authorchild->type != XML_ELEMENT_NODE) {
+				} else if (!strcmp(authorchild->name, "nick")) {
+					xmlAttr* nickattr = authorchild->properties;
+					char* nickname = 0;
+					while(nickattr) {
+						if (!strcmp(nickattr->name, "name"))
+							nickname = strdup(getattrib(db, file, authorchild->line, nickattr));
+						else {
+							rnn_err(db, "%s:%d: wrong attribute \"%s\" for nick\n", file, authorchild->line, nickattr->name);
+						}
+						nickattr = nickattr->next;
+					}
+					if(!nickname) {
+						rnn_err(db, "%s:%d: missing \"name\" attribute for nick\n", file, authorchild->line);
+					} else
+						ADDARRAY(author->nicknames, nickname);
+				} else {
+					rnn_err(db, "%s:%d: wrong tag in author: <%s>\n", file, authorchild->line, authorchild->name);
+				}
+				authorchild = authorchild->next;
+			}
+			ADDARRAY(copyright->authors, author);
+		} else {
+			rnn_err(db, "%s:%d: wrong tag in copyright: <%s>\n", file, chain->line, chain->name);
+		}
+		chain = chain->next;
+	}
+}
+
+static int trytop (struct rnndb *db, char *file, xmlNode *node) {
+	if (!strcmp(node->name, "enum")) {
+		parseenum(db, file, node);
+		return 1;
+	} else if (!strcmp(node->name, "bitset")) {
+		parsebitset(db, file, node);
+		return 1;
+	} else if (!strcmp(node->name, "group")) {
+		parsegroup(db, file, node);
+		return 1;
+	} else if (!strcmp(node->name, "domain")) {
+		parsedomain(db, file, node);
+		return 1;
+	} else if (!strcmp(node->name, "spectype")) {
+		parsespectype(db, file, node);
+		return 1;
+	} else if (!strcmp(node->name, "import")) {
+		xmlAttr *attr = node->properties;
+		char *subfile = 0;
+		while (attr) {
+			if (!strcmp(attr->name, "file")) {
+				subfile = getattrib(db, file, node->line, attr);
+			} else {
+				rnn_err(db, "%s:%d: wrong attribute \"%s\" for import\n", file, node->line, attr->name);
+			}
+			attr = attr->next;
+		}
+		if (!subfile) {
+			rnn_err(db, "%s:%d: missing \"file\" attribute for import\n", file, node->line);
+		} else {
+			rnn_parsefile(db, subfile);
+		}
+		return 1;
+	} else if (!strcmp(node->name, "copyright")) {
+		parsecopyright(db, file, node);
+		return 1;
+	}
+	return 0;
+}
+
+static char * find_file(const char *file_orig)
+{
+	const char *rnn_path = getenv("RNN_PATH");
+	char *fname;
+
+	if (!rnn_path)
+		rnn_path = RNN_DEF_PATH;
+
+	FILE *file = find_in_path(file_orig, rnn_path, &fname);
+	if (!file) {
+		fprintf (stderr, "%s: couldn't find database file. Please set the env var RNN_PATH.\n", file_orig);
+		return NULL;
+	}
+	fclose(file);
+
+	return fname;
+}
+
+static int validate_doc(struct rnndb *db, xmlDocPtr doc, xmlNodePtr database)
+{
+	/* find the schemaLocation property: */
+	xmlAttrPtr attr = database->properties;
+	const char *schema_name = NULL;
+	char *schema_path;
+
+	while (attr) {
+		if (!strcmp(attr->name, "schemaLocation")) {
+			xmlNodePtr data = attr->children;
+			schema_name = data->content;
+			/* we expect this to look like <namespace url> schema.xsd.. I think
+			 * technically it is supposed to be just a URL, but that doesn't
+			 * quite match up to what we do.. Just skip over everything up to
+			 * and including the first whitespace character:
+			 */
+			while (schema_name && (schema_name[0] != ' '))
+				schema_name++;
+			schema_name++;
+			break;
+		}
+	}
+
+	if (!schema_name) {
+		rnn_err(db, "could not find schema.  Missing schemaLocation?");
+		return 0;
+	}
+
+	schema_path = find_file(schema_name);
+	if (!schema_path) {
+		rnn_err(db, "%s: couldn't find database file. Please set the env var RNN_PATH.\n", schema_name);
+		return 0;
+	}
+
+	xmlSchemaParserCtxtPtr parser = xmlSchemaNewParserCtxt(schema_path);
+	xmlSchemaPtr schema = xmlSchemaParse(parser);
+	xmlSchemaValidCtxtPtr validCtxt = xmlSchemaNewValidCtxt(schema);
+	int ret = xmlSchemaValidateDoc(validCtxt, doc);
+
+	xmlSchemaFreeValidCtxt(validCtxt);
+	xmlSchemaFree(schema);
+	xmlSchemaFreeParserCtxt(parser);
+
+	free(schema_path);
+
+	return ret;
+}
+
+void rnn_parsefile (struct rnndb *db, char *file_orig) {
+	int i;
+	char *fname;
+
+	fname = find_file(file_orig);
+	if (!fname) {
+		db->estatus = 1;
+		return;
+	}
+
+	for (i = 0; i < db->filesnum; i++)
+		if (!strcmp(db->files[i], fname))
+			return;
+		
+	ADDARRAY(db->files, fname);
+	xmlDocPtr doc = xmlParseFile(fname);
+	if (!doc) {
+		rnn_err(db, "%s: couldn't open database file. Please set the env var RNN_PATH.\n", fname);
+		return;
+	}
+	xmlNode *root = doc->children;
+	while (root) {
+		if (root->type != XML_ELEMENT_NODE) {
+		} else if (strcmp(root->name, "database")) {
+			rnn_err(db, "%s:%d: wrong top-level tag <%s>\n", fname, root->line, root->name);
+		} else {
+			xmlNode *chain = root->children;
+			if (validate_doc(db, doc, root)) {
+				rnn_err(db, "%s: database file has errors\n", fname);
+				return;
+			}
+			while (chain) {
+				if (chain->type != XML_ELEMENT_NODE) {
+				} else if (!trytop(db, fname, chain) && !trydoc(db, fname, chain)) {
+					rnn_err(db, "%s:%d: wrong tag in database: <%s>\n", fname, chain->line, chain->name);
+				}
+				chain = chain->next;
+			}
+		}
+		root = root->next;
+	}
+	xmlFreeDoc(doc);
+}
+
+static struct rnnvalue *copyvalue (struct rnnvalue *val, char *file) {
+	struct rnnvalue *res = calloc (sizeof *res, 1);
+	res->name = val->name;
+	res->valvalid = val->valvalid;
+	res->value = val->value;
+	res->varinfo = val->varinfo;
+	res->file = file;
+	return res;
+}
+
+static struct rnnbitfield *copybitfield (struct rnnbitfield *bf, char *file);
+
+
+static void copytypeinfo (struct rnntypeinfo *dst, struct rnntypeinfo *src, char *file) {
+	int i;
+	dst->name = src->name;
+	dst->shr = src->shr;
+	dst->low = src->low;
+	dst->high = src->high;
+	dst->min = src->min;
+	dst->max = src->max;
+	dst->align = src->align;
+	dst->addvariant = src->addvariant;
+	for (i = 0; i < src->valsnum; i++)
+		ADDARRAY(dst->vals, copyvalue(src->vals[i], file));
+	for (i = 0; i < src->bitfieldsnum; i++)
+		ADDARRAY(dst->bitfields, copybitfield(src->bitfields[i], file));
+}
+
+static struct rnnbitfield *copybitfield (struct rnnbitfield *bf, char *file) {
+	struct rnnbitfield *res = calloc (sizeof *res, 1);
+	res->name = bf->name;
+	res->varinfo = bf->varinfo;
+	res->file = file;
+	copytypeinfo(&res->typeinfo, &bf->typeinfo, file);
+	return res;
+}
+
+static struct rnndelem *copydelem (struct rnndelem *elem, char *file) {
+	struct rnndelem *res = calloc (sizeof *res, 1);
+	res->type = elem->type;
+	res->name = elem->name;
+	res->width = elem->width;
+	res->access = elem->access;
+	res->offset = elem->offset;
+	res->length = elem->length;
+	res->stride = elem->stride;
+	res->varinfo = elem->varinfo;
+	res->file = file;
+	copytypeinfo(&res->typeinfo, &elem->typeinfo, file);
+	int i;
+	for (i = 0; i < elem->subelemsnum; i++)
+		ADDARRAY(res->subelems, copydelem(elem->subelems[i], file));
+	for (i = 0; i < elem->offsetsnum; i++)
+		ADDARRAY(res->offsets, elem->offsets[i]);
+	return res;
+}
+
+static struct rnnvarset *copyvarset (struct rnnvarset *varset) {
+	struct rnnvarset *res = calloc(sizeof *res, 1);
+	res->venum = varset->venum;
+	res->variants = calloc(sizeof *res->variants, res->venum->valsnum);
+	int i;
+	for (i = 0; i < res->venum->valsnum; i++)
+		res->variants[i] = varset->variants[i];
+	return res;
+}
+
+static void prepenum(struct rnndb *db, struct rnnenum *en);
+
+static int findvidx (struct rnndb *db, struct rnnenum *en, char *name) {
+	int i;
+	for (i = 0; i < en->valsnum; i++)
+		if (!strcmp(en->vals[i]->name, name))
+			return i;
+	rnn_err(db, "Cannot find variant %s in enum %s!\n", name, en->name);
+	return -1;
+}
+
+static void prepvarinfo (struct rnndb *db, char *what, struct rnnvarinfo *vi, struct rnnvarinfo *parent) {
+	if (parent)
+		vi->prefenum = parent->prefenum;
+	if (vi->prefixstr) {
+		if (!strcmp(vi->prefixstr, "none"))
+			vi->prefenum = 0;
+		else
+			vi->prefenum = rnn_findenum(db, vi->prefixstr); // XXX
+	}
+	int i;
+	if (parent)
+		for (i = 0; i < parent->varsetsnum; i++)
+			ADDARRAY(vi->varsets, copyvarset(parent->varsets[i]));
+	struct rnnenum *varset = vi->prefenum;
+	if (!varset && !vi->varsetstr && parent)
+		vi->varsetstr = parent->varsetstr;
+	if (vi->varsetstr)
+		varset = rnn_findenum(db, vi->varsetstr);
+	if (vi->variantsstr) {
+		char *vars = vi->variantsstr;
+		if (!varset) {
+			rnn_err(db, "%s: tried to use variants without active varset!\n", what);
+			return;
+		}
+		struct rnnvarset *vs = 0;
+		int nvars = varset->valsnum;
+		for (i = 0; i < vi->varsetsnum; i++)
+			if (vi->varsets[i]->venum == varset) {
+				vs = vi->varsets[i];
+				break;
+			}
+		if (!vs) {
+			vs = calloc (sizeof *vs, 1);
+			vs->venum = varset;
+			vs->variants = calloc(sizeof *vs->variants, nvars);
+			for (i = 0; i < nvars; i++)
+				vs->variants[i] = 1;
+			ADDARRAY(vi->varsets, vs);
+		}
+		while (1) {
+			while (*vars == ' ') vars++;
+			if (*vars == 0)
+				break;
+			char *split = vars;
+			while (*split != ':' && *split != '-' && *split != ' '  && *split != 0)
+				split++;
+			char *first = 0;
+			if (split != vars)
+				first = strndup(vars, split-vars);
+			if (*split == ' ' || *split == 0) {
+				int idx = findvidx(db, varset, first);
+				if (idx != -1)
+					vs->variants[idx] |= 2;
+				vars = split;
+			} else {
+				char *end = split+1;
+				while (*end != ' '  && *end != 0)
+					end++;
+				char *second = 0;
+				if (end != split+1)
+					second = strndup(split+1, end-split-1);
+				int idx1 = 0;
+				if (first)
+					idx1 = findvidx(db, varset, first);
+				int idx2 = nvars;
+				if (second) {
+					idx2 = findvidx(db, varset, second);
+					if (*split == '-')
+						idx2++;
+				}
+				if (idx1 != -1 && idx2 != -1)
+					for (i = idx1; i < idx2; i++)
+						vs->variants[i] |= 2;
+				vars = end;
+				free(second);
+			}
+			free(first);
+		}
+		vi->dead = 1;
+		for (i = 0; i < nvars; i++) {
+			vs->variants[i] = (vs->variants[i] == 3);
+			if (vs->variants[i])
+				vi->dead = 0;
+		}
+	}
+	if (vi->dead)
+		return;
+	if (vi->prefenum) {
+		struct rnnvarset *vs = 0;
+		for (i = 0; i < vi->varsetsnum; i++)
+			if (vi->varsets[i]->venum == vi->prefenum) {
+				vs = vi->varsets[i];
+				break;
+			}
+		if (vs) {
+			for (i = 0; i < vi->prefenum->valsnum; i++)
+				if (vs->variants[i]) {
+					vi->prefix = vi->prefenum->vals[i]->name;
+					return;
+				}
+		} else {
+			vi->prefix = vi->prefenum->vals[0]->name;
+		}
+	}
+}
+
+static void prepvalue(struct rnndb *db, struct rnnvalue *val, char *prefix, struct rnnvarinfo *parvi) {
+	val->fullname = catstr(prefix, val->name);
+	prepvarinfo (db, val->fullname, &val->varinfo, parvi);
+	if (val->varinfo.dead)
+		return;
+	if (val->varinfo.prefix)
+		val->fullname = catstr(val->varinfo.prefix, val->fullname);
+}
+
+static void prepbitfield(struct rnndb *db, struct rnnbitfield *bf, char *prefix, struct rnnvarinfo *parvi);
+
+static void preptypeinfo(struct rnndb *db, struct rnntypeinfo *ti, char *prefix, struct rnnvarinfo *vi, char *file) {
+	int i;
+	if (ti->name) {
+		struct rnnenum *en = rnn_findenum (db, ti->name);
+		struct rnnbitset *bs = rnn_findbitset (db, ti->name);
+		struct rnnspectype *st = rnn_findspectype (db, ti->name);
+		if (en) {
+			if (en->isinline) {
+				ti->type = RNN_TTYPE_INLINE_ENUM;
+				int j;
+				for (j = 0; j < en->valsnum; j++)
+					ADDARRAY(ti->vals, copyvalue(en->vals[j], file));
+			} else {
+				ti->type = RNN_TTYPE_ENUM;
+				ti->eenum = en;
+			}
+		} else if (bs) {
+			if (bs->isinline) {
+				ti->type = RNN_TTYPE_INLINE_BITSET;
+				int j;
+				for (j = 0; j < bs->bitfieldsnum; j++)
+					ADDARRAY(ti->bitfields, copybitfield(bs->bitfields[j], file));
+			} else {
+				ti->type = RNN_TTYPE_BITSET;
+				ti->ebitset = bs;
+			}
+		} else if (st) {
+			ti->type = RNN_TTYPE_SPECTYPE;
+			ti->spectype = st;
+		} else if (!strcmp(ti->name, "hex")) {
+			ti->type = RNN_TTYPE_HEX;
+		} else if (!strcmp(ti->name, "float")) {
+			ti->type = RNN_TTYPE_FLOAT;
+		} else if (!strcmp(ti->name, "uint")) {
+			ti->type = RNN_TTYPE_UINT;
+		} else if (!strcmp(ti->name, "int")) {
+			ti->type = RNN_TTYPE_INT;
+		} else if (!strcmp(ti->name, "boolean")) {
+			ti->type = RNN_TTYPE_BOOLEAN;
+		} else if (!strcmp(ti->name, "bitfield")) {
+			ti->type = RNN_TTYPE_INLINE_BITSET;
+		} else if (!strcmp(ti->name, "enum")) {
+			ti->type = RNN_TTYPE_INLINE_ENUM;
+		} else if (!strcmp(ti->name, "fixed")) {
+			ti->type = RNN_TTYPE_FIXED;
+		} else if (!strcmp(ti->name, "ufixed")) {
+			ti->type = RNN_TTYPE_UFIXED;
+		} else if (!strcmp(ti->name, "a3xx_regid")) {
+			ti->type = RNN_TTYPE_A3XX_REGID;
+		} else if (!strcmp(ti->name, "waddress") || !strcmp(ti->name, "address")) {
+			ti->type = RNN_TTYPE_HEX;
+		} else {
+			ti->type = RNN_TTYPE_HEX;
+			rnn_err(db, "%s: unknown type %s\n", prefix, ti->name);
+		}
+	} else if (ti->bitfieldsnum) {
+		ti->name = "bitfield";
+		ti->type = RNN_TTYPE_INLINE_BITSET;
+	} else if (ti->valsnum) {
+		ti->name = "enum";
+		ti->type = RNN_TTYPE_INLINE_ENUM;
+	} else if (ti->low == 0 && ti->high == 0) {
+		ti->name = "boolean";
+		ti->type = RNN_TTYPE_BOOLEAN;
+	} else {
+		ti->name = "hex";
+		ti->type = RNN_TTYPE_HEX;
+	}
+	if (ti->addvariant && ti->type != RNN_TTYPE_ENUM) {
+		rnn_err(db, "%s: addvariant specified on non-enum type %s\n", prefix, ti->name);
+	}
+	for (i = 0; i < ti->bitfieldsnum; i++)
+		prepbitfield(db,  ti->bitfields[i], prefix, vi);
+	for (i = 0; i < ti->valsnum; i++)
+		prepvalue(db, ti->vals[i], prefix, vi);
+}
+
+static void prepbitfield(struct rnndb *db, struct rnnbitfield *bf, char *prefix, struct rnnvarinfo *parvi) {
+	bf->fullname = catstr(prefix, bf->name);
+	prepvarinfo (db, bf->fullname, &bf->varinfo, parvi);
+	if (bf->varinfo.dead)
+		return;
+	preptypeinfo(db, &bf->typeinfo, bf->fullname, &bf->varinfo, bf->file);
+	if (bf->varinfo.prefix)
+		bf->fullname = catstr(bf->varinfo.prefix, bf->fullname);
+}
+
+static void prepdelem(struct rnndb *db, struct rnndelem *elem, char *prefix, struct rnnvarinfo *parvi, int width) {
+	if (elem->type == RNN_ETYPE_USE_GROUP) {
+		int i;
+		struct rnngroup *gr = 0;
+		for (i = 0; i < db->groupsnum; i++)
+			if (!strcmp(db->groups[i]->name, elem->name)) {
+				gr = db->groups[i];
+				break;
+			}
+		if (gr) {
+			for (i = 0; i < gr->subelemsnum; i++)
+				ADDARRAY(elem->subelems, copydelem(gr->subelems[i], elem->file));
+		} else {
+			rnn_err(db, "group %s not found!\n", elem->name);
+		}
+		elem->type = RNN_ETYPE_STRIPE;
+		elem->length = 1;
+		elem->name = 0;
+	}
+	if (elem->name)
+		elem->fullname = catstr(prefix, elem->name);
+	prepvarinfo (db, elem->fullname?elem->fullname:prefix, &elem->varinfo, parvi);
+	if (elem->varinfo.dead)
+		return;
+	if (elem->length != 1 && !elem->stride) {
+		if (elem->type != RNN_ETYPE_REG) {
+			rnn_err(db, "%s has non-1 length, but no stride!\n", elem->fullname);
+		} else {
+			elem->stride = elem->width/width;
+		}
+	}
+	preptypeinfo(db, &elem->typeinfo, elem->name?elem->fullname:prefix, &elem->varinfo, elem->file);
+
+	int i;
+	for (i = 0; i < elem->subelemsnum; i++)
+		prepdelem(db,  elem->subelems[i], elem->name?elem->fullname:prefix, &elem->varinfo, width);
+	if (elem->varinfo.prefix && elem->name)
+		elem->fullname = catstr(elem->varinfo.prefix, elem->fullname);
+}
+
+static void prepdomain(struct rnndb *db, struct rnndomain *dom) {
+	prepvarinfo (db, dom->name, &dom->varinfo, 0);
+	int i;
+	for (i = 0; i < dom->subelemsnum; i++)
+		prepdelem(db, dom->subelems[i], dom->bare?0:dom->name, &dom->varinfo, dom->width);
+	dom->fullname = catstr(dom->varinfo.prefix, dom->name);
+}
+
+static void prepenum(struct rnndb *db, struct rnnenum *en) {
+	if (en->prepared)
+		return;
+	prepvarinfo (db, en->name, &en->varinfo, 0);
+	int i;
+	if (en->isinline)
+		return;
+	for (i = 0; i < en->valsnum; i++)
+		prepvalue(db, en->vals[i], en->bare?0:en->name, &en->varinfo);
+	en->fullname = catstr(en->varinfo.prefix, en->name);
+	en->prepared = 1;
+}
+
+static void prepbitset(struct rnndb *db, struct rnnbitset *bs) {
+	prepvarinfo (db, bs->name, &bs->varinfo, 0);
+	int i;
+	if (bs->isinline)
+		return;
+	for (i = 0; i < bs->bitfieldsnum; i++)
+		prepbitfield(db, bs->bitfields[i], bs->bare?0:bs->name, &bs->varinfo);
+	bs->fullname = catstr(bs->varinfo.prefix, bs->name);
+}
+
+static void prepspectype(struct rnndb *db, struct rnnspectype *st) {
+	preptypeinfo(db, &st->typeinfo, st->name, 0, st->file); // XXX doesn't exactly make sense...
+}
+
+void rnn_prepdb (struct rnndb *db) {
+	int i;
+	for (i = 0; i < db->enumsnum; i++)
+		prepenum(db, db->enums[i]);
+	for (i = 0; i < db->bitsetsnum; i++)
+		prepbitset(db, db->bitsets[i]);
+	for (i = 0; i < db->domainsnum; i++)
+		prepdomain(db, db->domains[i]);
+	for (i = 0; i < db->spectypesnum; i++)
+		prepspectype(db, db->spectypes[i]);
+}
+
+struct rnnenum *rnn_findenum (struct rnndb *db, const char *name) {
+	int i;
+	for (i = 0; i < db->enumsnum; i++)
+		if (!strcmp(db->enums[i]->name, name))
+			return db->enums[i];
+	return 0;
+}
+
+struct rnnbitset *rnn_findbitset (struct rnndb *db, const char *name) {
+	int i;
+	for (i = 0; i < db->bitsetsnum; i++)
+		if (!strcmp(db->bitsets[i]->name, name))
+			return db->bitsets[i];
+	return 0;
+}
+
+struct rnndomain *rnn_finddomain (struct rnndb *db, const char *name) {
+	int i;
+	for (i = 0; i < db->domainsnum; i++)
+		if (!strcmp(db->domains[i]->name, name))
+			return db->domains[i];
+	return 0;
+}
+
+struct rnnspectype *rnn_findspectype (struct rnndb *db, const char *name) {
+	int i;
+	for (i = 0; i < db->spectypesnum; i++)
+		if (!strcmp(db->spectypes[i]->name, name))
+			return db->spectypes[i];
+	return 0;
+}
diff --git a/drivers/gpu/drm/msm/headergen2/rnn.h b/drivers/gpu/drm/msm/headergen2/rnn.h
new file mode 100644
index 000000000000..f90af090eb4d
--- /dev/null
+++ b/drivers/gpu/drm/msm/headergen2/rnn.h
@@ -0,0 +1,243 @@ 
+/*
+ * Copyright (C) 2010 Marcin Kościelnicki <koriakin@0x04.net>
+ * Copyright (C) 2010 Luca Barbieri <luca@luca-barbieri.com>
+ * All Rights Reserved.
+ *
+ * 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.
+ */
+
+#ifndef RNN_H
+#define RNN_H
+
+#include <stdint.h>
+#include <stdlib.h>
+
+struct rnnauthor {
+	char* name;
+	char* email;
+	char* contributions;
+	char* license;
+	char** nicknames;
+	int nicknamesnum;
+	int nicknamesmax;
+};
+
+struct rnncopyright {
+	unsigned firstyear;
+	char* license;
+	struct rnnauthor **authors;
+	int authorsnum;
+	int authorsmax;
+};
+
+struct rnndb {
+	struct rnncopyright copyright;
+	struct rnnenum **enums;
+	int enumsnum;
+	int enumsmax;
+	struct rnnbitset **bitsets;
+	int bitsetsnum;
+	int bitsetsmax;
+	struct rnndomain **domains;
+	int domainsnum;
+	int domainsmax;
+	struct rnngroup **groups;
+	int groupsnum;
+	int groupsmax;
+	struct rnnspectype **spectypes;
+	int spectypesnum;
+	int spectypesmax;
+	char **files;
+	int filesnum;
+	int filesmax;
+	int estatus;
+};
+
+struct rnnvarset {
+	struct rnnenum *venum;
+	int *variants;
+};
+
+struct rnnvarinfo {
+	char *prefixstr;
+	char *varsetstr;
+	char *variantsstr;
+	int dead;
+	struct rnnenum *prefenum;
+	char *prefix;
+	struct rnnvarset **varsets;
+	int varsetsnum;
+	int varsetsmax;
+};
+
+struct rnnenum {
+	char *name;
+	int bare;
+	int isinline;
+	struct rnnvarinfo varinfo;
+	struct rnnvalue **vals;
+	int valsnum;
+	int valsmax;
+	char *fullname;
+	int prepared;
+	char *file;
+};
+
+struct rnnvalue {
+	char *name;
+	int valvalid;
+	uint64_t value;
+	struct rnnvarinfo varinfo;
+	char *fullname;
+	char *file;
+};
+
+struct rnntypeinfo {
+	char *name;
+	enum rnnttype {
+		RNN_TTYPE_INVALID,
+		RNN_TTYPE_INLINE_ENUM,
+		RNN_TTYPE_INLINE_BITSET,
+		RNN_TTYPE_ENUM,
+		RNN_TTYPE_BITSET,
+		RNN_TTYPE_SPECTYPE,
+		RNN_TTYPE_HEX,
+		RNN_TTYPE_INT,
+		RNN_TTYPE_UINT,
+		RNN_TTYPE_FLOAT,
+		RNN_TTYPE_BOOLEAN,
+		RNN_TTYPE_FIXED,
+		RNN_TTYPE_UFIXED,
+		RNN_TTYPE_A3XX_REGID,
+	} type;
+	struct rnnenum *eenum;
+	struct rnnbitset *ebitset;
+	struct rnnspectype *spectype;
+	struct rnnbitfield **bitfields;
+	int bitfieldsnum;
+	int bitfieldsmax;
+	struct rnnvalue **vals;
+	int valsnum;
+	int valsmax;
+	int shr, low, high;
+	uint64_t min, max, align, radix;
+	int addvariant;
+	int minvalid, maxvalid, alignvalid, radixvalid;
+};
+
+static inline uint64_t typeinfo_mask(struct rnntypeinfo *ti)
+{
+	if (ti->high == 63)
+		return -(1ULL << ti->low);
+	else
+		return (1ULL << (ti->high + 1)) - (1ULL << ti->low);
+}
+
+struct rnnbitset {
+	char *name;
+	int bare;
+	int isinline;
+	struct rnnvarinfo varinfo;
+	struct rnnbitfield **bitfields;
+	int bitfieldsnum;
+	int bitfieldsmax;
+	char *fullname;
+	char *file;
+};
+
+struct rnnbitfield {
+	char *name;
+	struct rnnvarinfo varinfo;
+	struct rnntypeinfo typeinfo;
+	char *fullname;
+	char *file;
+};
+
+struct rnndomain {
+	char *name;
+	int bare;
+	int width;
+	uint64_t size;
+	int sizevalid;
+	struct rnnvarinfo varinfo;
+	struct rnndelem **subelems;
+	int subelemsnum;
+	int subelemsmax;
+	char *fullname;
+	char *file;
+};
+
+struct rnngroup {
+	char *name;
+	struct rnndelem **subelems;
+	int subelemsnum;
+	int subelemsmax;
+};
+
+struct rnndelem {
+	enum rnnetype {
+		RNN_ETYPE_REG,
+		RNN_ETYPE_ARRAY,
+		RNN_ETYPE_STRIPE,
+		RNN_ETYPE_USE_GROUP,
+	} type;
+	char *name;
+	int width;
+	enum rnnaccess {
+		RNN_ACCESS_R,
+		RNN_ACCESS_W,
+		RNN_ACCESS_RW,
+	} access;
+	uint64_t offset;
+	uint64_t *offsets;       /* for "array" with irregular offsets */
+	int offsetsnum;
+	int offsetsmax;
+	char *doffset;
+	char **doffsets;
+	int doffsetsnum;
+	int doffsetsmax;
+	uint64_t length;
+	uint64_t stride;
+	struct rnndelem **subelems;
+	int subelemsnum;
+	int subelemsmax;
+	struct rnnvarinfo varinfo;
+	struct rnntypeinfo typeinfo;
+	struct rnnenum *index;   /* for arrays, for symbolic idx values */
+	char *fullname;
+	char *file;
+};
+
+struct rnnspectype {
+	char *name;
+	struct rnntypeinfo typeinfo;
+	char *file;
+};
+
+void rnn_init(void);
+struct rnndb *rnn_newdb(void);
+void rnn_parsefile (struct rnndb *db, char *file);
+void rnn_prepdb (struct rnndb *db);
+struct rnnenum *rnn_findenum (struct rnndb *db, const char *name);
+struct rnnbitset *rnn_findbitset (struct rnndb *db, const char *name);
+struct rnndomain *rnn_finddomain (struct rnndb *db, const char *name);
+struct rnnspectype *rnn_findspectype (struct rnndb *db, const char *name);
+
+#endif
diff --git a/drivers/gpu/drm/msm/headergen2/rnndec.c b/drivers/gpu/drm/msm/headergen2/rnndec.c
new file mode 100644
index 000000000000..553c422d0545
--- /dev/null
+++ b/drivers/gpu/drm/msm/headergen2/rnndec.c
@@ -0,0 +1,550 @@ 
+/*
+ * Copyright (C) 2010-2011 Marcin Kościelnicki <koriakin@0x04.net>
+ * Copyright (C) 2010 Francisco Jerez <currojerez@riseup.net>
+ * All Rights Reserved.
+ *
+ * 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.
+ */
+
+#include "rnndec.h"
+#include <assert.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include "util.h"
+
+struct rnndeccontext *rnndec_newcontext(struct rnndb *db) {
+	struct rnndeccontext *res = calloc (sizeof *res, 1);
+	res->db = db;
+	res->colors = &envy_null_colors;
+	return res;
+}
+
+int rnndec_varadd(struct rnndeccontext *ctx, char *varset, const char *variant) {
+	struct rnnenum *en = rnn_findenum(ctx->db, varset);
+	if (!en) {
+		fprintf (stderr, "Enum %s doesn't exist in database!\n", varset);
+		return 0;
+	}
+	int i, j;
+	for (i = 0; i < en->valsnum; i++)
+		if (!strcasecmp(en->vals[i]->name, variant)) {
+			struct rnndecvariant *ci = calloc (sizeof *ci, 1);
+			ci->en = en;
+			ci->variant = i;
+			ADDARRAY(ctx->vars, ci);
+			return 1;
+		}
+
+	if (i == en->valsnum) {
+		fprintf (stderr, "Variant %s doesn't exist in enum %s!\n", variant, varset);
+		return 0;
+	}
+
+	for (j = 0; j < ctx->varsnum; j++) {
+		if (ctx->vars[j]->en == en) {
+			ctx->vars[j]->variant = i;
+			break;
+		}
+	}
+
+	if (i == ctx->varsnum) {
+		struct rnndecvariant *ci = calloc (sizeof *ci, 1);
+		ci->en = en;
+		ci->variant = i;
+		ADDARRAY(ctx->vars, ci);
+	}
+
+	return 1;
+}
+
+int rnndec_varmatch(struct rnndeccontext *ctx, struct rnnvarinfo *vi) {
+	if (vi->dead)
+		return 0;
+	int i;
+	for (i = 0; i < vi->varsetsnum; i++) {
+		int j;
+		for (j = 0; j < ctx->varsnum; j++)
+			if (vi->varsets[i]->venum == ctx->vars[j]->en)
+				break;
+		if (j == ctx->varsnum) {
+			fprintf (stderr, "I don't know which %s variant to use!\n", vi->varsets[i]->venum->name);
+		} else {
+			if (!vi->varsets[i]->variants[ctx->vars[j]->variant])
+				return 0;
+		}
+	}
+	return 1;
+}
+
+/* see https://en.wikipedia.org/wiki/Half-precision_floating-point_format */
+static uint32_t float16i(uint16_t val)
+{
+	uint32_t sign = ((uint32_t)(val & 0x8000)) << 16;
+	uint32_t frac = val & 0x3ff;
+	int32_t  expn = (val >> 10) & 0x1f;
+
+	if (expn == 0) {
+		if (frac) {
+			/* denormalized number: */
+			int shift = __builtin_clz(frac) - 21;
+			frac <<= shift;
+			expn = -shift;
+		} else {
+			/* +/- zero: */
+			return sign;
+		}
+	} else if (expn == 0x1f) {
+		/* Inf/NaN: */
+		return sign | 0x7f800000 | (frac << 13);
+	}
+
+	return sign | ((expn + 127 - 15) << 23) | (frac << 13);
+}
+static float float16(uint16_t val)
+{
+	union { uint32_t i; float f; } u;
+	u.i = float16i(val);
+	return u.f;
+}
+
+static const char *rnndec_decode_enum_val(struct rnndeccontext *ctx,
+		struct rnnvalue **vals, int valsnum, uint64_t value)
+{
+	int i;
+	for (i = 0; i < valsnum; i++)
+		if (rnndec_varmatch(ctx, &vals[i]->varinfo) &&
+				vals[i]->valvalid && vals[i]->value == value)
+			return vals[i]->name;
+	return NULL;
+}
+
+const char *rnndec_decode_enum(struct rnndeccontext *ctx, const char *enumname, uint64_t enumval)
+{
+	struct rnnenum *en = rnn_findenum (ctx->db, enumname);
+	if (en) {
+		return rnndec_decode_enum_val(ctx, en->vals, en->valsnum, enumval);
+	}
+	return NULL;
+}
+
+/* The name UNK%u is used as a placeholder for bitfields that exist but
+ * have an unknown function.
+ */
+static int is_unknown(const char *name)
+{
+	unsigned u;
+	return sscanf(name, "UNK%u", &u) == 1;
+}
+
+char *rnndec_decodeval(struct rnndeccontext *ctx, struct rnntypeinfo *ti, uint64_t value) {
+	int width = ti->high - ti->low + 1;
+	char *res = 0;
+	int i;
+	struct rnnvalue **vals;
+	int valsnum;
+	struct rnnbitfield **bitfields;
+	int bitfieldsnum;
+	char *tmp;
+	const char *ctmp;
+	uint64_t mask, value_orig;
+	if (!ti)
+		goto failhex;
+	value_orig = value;
+	value = (value & typeinfo_mask(ti)) >> ti->low;
+	value <<= ti->shr;
+
+	switch (ti->type) {
+		case RNN_TTYPE_ENUM:
+			vals = ti->eenum->vals;
+			valsnum = ti->eenum->valsnum;
+			goto doenum;
+		case RNN_TTYPE_INLINE_ENUM:
+			vals = ti->vals;
+			valsnum = ti->valsnum;
+			goto doenum;
+		doenum:
+			ctmp = rnndec_decode_enum_val(ctx, vals, valsnum, value);
+			if (ctmp) {
+				asprintf (&res, "%s%s%s", ctx->colors->eval, ctmp, ctx->colors->reset);
+				if (ti->addvariant) {
+					rnndec_varadd(ctx, ti->eenum->name, ctmp);
+				}
+				break;
+			}
+			goto failhex;
+		case RNN_TTYPE_BITSET:
+			bitfields = ti->ebitset->bitfields;
+			bitfieldsnum = ti->ebitset->bitfieldsnum;
+			goto dobitset;
+		case RNN_TTYPE_INLINE_BITSET:
+			bitfields = ti->bitfields;
+			bitfieldsnum = ti->bitfieldsnum;
+			goto dobitset;
+		dobitset:
+			mask = 0;
+			for (i = 0; i < bitfieldsnum; i++) {
+				if (!rnndec_varmatch(ctx, &bitfields[i]->varinfo))
+					continue;
+				uint64_t type_mask = typeinfo_mask(&bitfields[i]->typeinfo);
+				if (((value & type_mask) == 0) && is_unknown(bitfields[i]->name))
+					continue;
+				mask |= type_mask;
+				if (bitfields[i]->typeinfo.type == RNN_TTYPE_BOOLEAN) {
+					const char *color = is_unknown(bitfields[i]->name) ?
+							ctx->colors->err : ctx->colors->mod;
+					if (value & type_mask) {
+						if (!res)
+							asprintf (&res, "%s%s%s", color, bitfields[i]->name, ctx->colors->reset);
+						else {
+							asprintf (&tmp, "%s | %s%s%s", res, color, bitfields[i]->name, ctx->colors->reset);
+							free(res);
+							res = tmp;
+						}
+					}
+					continue;
+				}
+				char *subval;
+				if (is_unknown(bitfields[i]->name) && (bitfields[i]->typeinfo.type != RNN_TTYPE_A3XX_REGID)) {
+					uint64_t field_val = value & type_mask;
+					field_val = (field_val & typeinfo_mask(&bitfields[i]->typeinfo)) >> bitfields[i]->typeinfo.low;
+					field_val <<= bitfields[i]->typeinfo.shr;
+					asprintf (&subval, "%s%#"PRIx64"%s", ctx->colors->err, field_val, ctx->colors->reset);
+				} else {
+					subval = rnndec_decodeval(ctx, &bitfields[i]->typeinfo, value & type_mask);
+				}
+				if (!res)
+					asprintf (&res, "%s%s%s = %s", ctx->colors->rname, bitfields[i]->name, ctx->colors->reset, subval);
+				else {
+					asprintf (&tmp, "%s | %s%s%s = %s", res, ctx->colors->rname, bitfields[i]->name, ctx->colors->reset, subval);
+					free(res);
+					res = tmp;
+				}
+				free(subval);
+			}
+			if (value & ~mask) {
+				if (!res)
+					asprintf (&res, "%s%#"PRIx64"%s", ctx->colors->err, value & ~mask, ctx->colors->reset);
+				else {
+					asprintf (&tmp, "%s | %s%#"PRIx64"%s", res, ctx->colors->err, value & ~mask, ctx->colors->reset);
+					free(res);
+					res = tmp;
+				}
+			}
+			if (!res)
+				asprintf (&res, "%s0%s", ctx->colors->num, ctx->colors->reset);
+			asprintf (&tmp, "{ %s }", res);
+			free(res);
+			return tmp;
+		case RNN_TTYPE_SPECTYPE:
+			return rnndec_decodeval(ctx, &ti->spectype->typeinfo, value);
+		case RNN_TTYPE_HEX:
+			asprintf (&res, "%s%#"PRIx64"%s", ctx->colors->num, value, ctx->colors->reset);
+			break;
+		case RNN_TTYPE_FIXED:
+			if (value & UINT64_C(1) << (width-1)) {
+				asprintf (&res, "%s-%lf%s", ctx->colors->num,
+						((double)((UINT64_C(1) << width) - value)) / ((double)(1 << ti->radix)),
+						ctx->colors->reset);
+				break;
+			}
+			/* fallthrough */
+		case RNN_TTYPE_UFIXED:
+			asprintf (&res, "%s%lf%s", ctx->colors->num,
+					((double)value) / ((double)(1LL << ti->radix)),
+					ctx->colors->reset);
+			break;
+		case RNN_TTYPE_A3XX_REGID:
+			asprintf (&res, "%sr%"PRIu64".%c%s", ctx->colors->num, (value >> 2), "xyzw"[value & 0x3], ctx->colors->reset);
+			break;
+		case RNN_TTYPE_UINT:
+			asprintf (&res, "%s%"PRIu64"%s", ctx->colors->num, value, ctx->colors->reset);
+			break;
+		case RNN_TTYPE_INT:
+			if (value & UINT64_C(1) << (width-1))
+				asprintf (&res, "%s-%"PRIi64"%s", ctx->colors->num, (UINT64_C(1) << width) - value, ctx->colors->reset);
+			else
+				asprintf (&res, "%s%"PRIi64"%s", ctx->colors->num, value, ctx->colors->reset);
+			break;
+		case RNN_TTYPE_BOOLEAN:
+			if (value == 0) {
+				asprintf (&res, "%sFALSE%s", ctx->colors->eval, ctx->colors->reset);
+			} else if (value == 1) {
+				asprintf (&res, "%sTRUE%s", ctx->colors->eval, ctx->colors->reset);
+			}
+			break;
+		case RNN_TTYPE_FLOAT: {
+			union { uint64_t i; float f; double d; } val;
+			val.i = value;
+			if (width == 64)
+				asprintf(&res, "%s%f%s", ctx->colors->num,
+					val.d, ctx->colors->reset);
+			else if (width == 32)
+				asprintf(&res, "%s%f%s", ctx->colors->num,
+					val.f, ctx->colors->reset);
+			else if (width == 16)
+				asprintf(&res, "%s%f%s", ctx->colors->num,
+					float16(value), ctx->colors->reset);
+			else
+				goto failhex;
+
+			break;
+		}
+		failhex:
+		default:
+			asprintf (&res, "%s%#"PRIx64"%s", ctx->colors->num, value, ctx->colors->reset);
+			break;
+	}
+	if (value_orig & ~typeinfo_mask(ti)) {
+		asprintf (&tmp, "%s | %s%#"PRIx64"%s", res, ctx->colors->err, value_orig & ~typeinfo_mask(ti), ctx->colors->reset);
+		free(res);
+		res = tmp;
+	}
+	return res;
+}
+
+static char *appendidx (struct rnndeccontext *ctx, char *name, uint64_t idx, struct rnnenum *index) {
+	char *res;
+	const char *index_name = NULL;
+
+	if (index)
+		index_name = rnndec_decode_enum_val(ctx, index->vals, index->valsnum, idx);
+
+	if (index_name)
+		asprintf (&res, "%s[%s%s%s]", name, ctx->colors->eval, index_name, ctx->colors->reset);
+	else
+		asprintf (&res, "%s[%s%#"PRIx64"%s]", name, ctx->colors->num, idx, ctx->colors->reset);
+
+	free (name);
+	return res;
+}
+
+/* This could probably be made to work for stripes too.. */
+static int get_array_idx_offset(struct rnndelem *elem, uint64_t addr, uint64_t *idx, uint64_t *offset)
+{
+	if (elem->offsets) {
+		int i;
+		for (i = 0; i < elem->offsetsnum; i++) {
+			uint64_t o = elem->offsets[i];
+			if ((o <= addr) && (addr < (o + elem->stride))) {
+				*idx = i;
+				*offset = addr - o;
+				return 0;
+			}
+		}
+		return -1;
+	} else {
+		if (addr < elem->offset)
+			return -1;
+
+		*idx = (addr - elem->offset) / elem->stride;
+		*offset = (addr - elem->offset) % elem->stride;
+
+		if (elem->length && (*idx >= elem->length))
+			return -1;
+
+		return 0;
+	}
+}
+
+static struct rnndecaddrinfo *trymatch (struct rnndeccontext *ctx, struct rnndelem **elems, int elemsnum, uint64_t addr, int write, int dwidth, uint64_t *indices, int indicesnum) {
+	struct rnndecaddrinfo *res;
+	int i, j;
+	for (i = 0; i < elemsnum; i++) {
+		if (!rnndec_varmatch(ctx, &elems[i]->varinfo))
+			continue;
+		uint64_t offset, idx;
+		char *tmp, *name;
+		switch (elems[i]->type) {
+			case RNN_ETYPE_REG:
+				if (addr < elems[i]->offset)
+					break;
+				if (elems[i]->stride) {
+					idx = (addr-elems[i]->offset)/elems[i]->stride;
+					offset = (addr-elems[i]->offset)%elems[i]->stride;
+				} else {
+					idx = 0;
+					offset = addr-elems[i]->offset;
+				}
+				if (offset >= elems[i]->width/dwidth)
+					break;
+				if (elems[i]->length && idx >= elems[i]->length)
+					break;
+				res = calloc (sizeof *res, 1);
+				res->typeinfo = &elems[i]->typeinfo;
+				res->width = elems[i]->width;
+				asprintf (&res->name, "%s%s%s", ctx->colors->rname, elems[i]->name, ctx->colors->reset);
+				for (j = 0; j < indicesnum; j++)
+					res->name = appendidx(ctx, res->name, indices[j], NULL);
+				if (elems[i]->length != 1)
+					res->name = appendidx(ctx, res->name, idx, elems[i]->index);
+				if (offset) {
+					asprintf (&tmp, "%s+%s%#"PRIx64"%s", res->name, ctx->colors->err, offset, ctx->colors->reset);
+					free(res->name);
+					res->name = tmp;
+				}
+				return res;
+			case RNN_ETYPE_STRIPE:
+				for (idx = 0; idx < elems[i]->length || !elems[i]->length; idx++) {
+					if (addr < elems[i]->offset + elems[i]->stride * idx)
+						break;
+					offset = addr - (elems[i]->offset + elems[i]->stride * idx);
+					int extraidx = (elems[i]->length != 1);
+					int nindnum = (elems[i]->name ? 0 : indicesnum + extraidx);
+					uint64_t nind[nindnum];
+					if (!elems[i]->name) {
+						for (j = 0; j < indicesnum; j++)
+							nind[j] = indices[j];
+						if (extraidx)
+							nind[indicesnum] = idx;
+					}
+					res = trymatch (ctx, elems[i]->subelems, elems[i]->subelemsnum, offset, write, dwidth, nind, nindnum);
+					if (!res)
+						continue;
+					if (!elems[i]->name)
+						return res;
+					asprintf (&name, "%s%s%s", ctx->colors->rname, elems[i]->name, ctx->colors->reset);
+					for (j = 0; j < indicesnum; j++)
+						name = appendidx(ctx, name, indices[j], NULL);
+					if (elems[i]->length != 1)
+						name = appendidx(ctx, name, idx, elems[i]->index);
+					asprintf (&tmp, "%s.%s", name, res->name);
+					free(name);
+					free(res->name);
+					res->name = tmp;
+					return res;
+				}
+				break;
+			case RNN_ETYPE_ARRAY:
+				if (get_array_idx_offset(elems[i], addr, &idx, &offset))
+					break;
+				asprintf (&name, "%s%s%s", ctx->colors->rname, elems[i]->name, ctx->colors->reset);
+				for (j = 0; j < indicesnum; j++)
+					name = appendidx(ctx, name, indices[j], NULL);
+				if (elems[i]->length != 1)
+					name = appendidx(ctx, name, idx, elems[i]->index);
+				if ((res = trymatch (ctx, elems[i]->subelems, elems[i]->subelemsnum, offset, write, dwidth, 0, 0))) {
+					asprintf (&tmp, "%s.%s", name, res->name);
+					free(name);
+					free(res->name);
+					res->name = tmp;
+					return res;
+				}
+				res = calloc (sizeof *res, 1);
+				asprintf (&tmp, "%s+%s%#"PRIx64"%s", name, ctx->colors->err, offset, ctx->colors->reset);
+				free(name);
+				res->name = tmp;
+				return res;
+			default:
+				break;
+		}
+	}
+	return 0;
+}
+
+int rnndec_checkaddr(struct rnndeccontext *ctx, struct rnndomain *domain, uint64_t addr, int write) {
+	struct rnndecaddrinfo *res = trymatch(ctx, domain->subelems, domain->subelemsnum, addr, write, domain->width, 0, 0);
+	if (res) {
+		free(res->name);
+		free(res);
+	}
+	return res != NULL;
+}
+
+struct rnndecaddrinfo *rnndec_decodeaddr(struct rnndeccontext *ctx, struct rnndomain *domain, uint64_t addr, int write) {
+	struct rnndecaddrinfo *res = trymatch(ctx, domain->subelems, domain->subelemsnum, addr, write, domain->width, 0, 0);
+	if (res)
+		return res;
+	res = calloc (sizeof *res, 1);
+	asprintf (&res->name, "%s%#"PRIx64"%s", ctx->colors->err, addr, ctx->colors->reset);
+	return res;
+}
+
+static unsigned tryreg(struct rnndeccontext *ctx, struct rnndelem **elems, int elemsnum,
+		int dwidth, const char *name, uint64_t *offset)
+{
+	int i;
+	unsigned ret;
+	const char *suffix = strchr(name, '[');
+	unsigned n = suffix ? (suffix - name) : strlen(name);
+	const char *dotsuffix = strchr(name, '.');
+	unsigned dotn = dotsuffix ? (dotsuffix - name) : strlen(name);
+
+	const char *child = NULL;
+	unsigned idx = 0;
+
+	if (suffix) {
+		const char *tmp = strchr(suffix, ']');
+		idx = strtol(suffix+1, NULL, 0);
+		child = tmp+2;
+	}
+
+	for (i = 0; i < elemsnum; i++) {
+		struct rnndelem *elem = elems[i];
+		if (!rnndec_varmatch(ctx, &elem->varinfo))
+			continue;
+		int match = elem->name && (strlen(elem->name) == n) && !strncmp(elem->name, name, n);
+		switch (elem->type) {
+			case RNN_ETYPE_REG:
+				if (match) {
+					assert(!suffix);
+					*offset = elem->offset;
+					return 1;
+				}
+				break;
+			case RNN_ETYPE_STRIPE:
+				if (elem->name) {
+					if (!dotsuffix)
+						break;
+					if (strlen(elem->name) != dotn || strncmp(elem->name, name, dotn))
+						break;
+				}
+				ret = tryreg(ctx, elem->subelems, elem->subelemsnum, dwidth,
+					elem->name ? dotsuffix : name, offset);
+				if (ret)
+					return 1;
+				break;
+			case RNN_ETYPE_ARRAY:
+				if (match) {
+					assert(suffix);
+					ret = tryreg(ctx, elem->subelems, elem->subelemsnum, dwidth, child, offset);
+					if (ret) {
+						*offset += elem->offset + (idx * elem->stride);
+						return 1;
+					}
+				}
+				break;
+			default:
+				break;
+		}
+	}
+	return 0;
+}
+
+uint64_t rnndec_decodereg(struct rnndeccontext *ctx, struct rnndomain *domain, const char *name)
+{
+	uint64_t offset;
+	if (tryreg(ctx, domain->subelems, domain->subelemsnum, domain->width, name, &offset)) {
+		return offset;
+	} else {
+		return 0;
+	}
+}
diff --git a/drivers/gpu/drm/msm/headergen2/rnndec.h b/drivers/gpu/drm/msm/headergen2/rnndec.h
new file mode 100644
index 000000000000..6e90eb9e97df
--- /dev/null
+++ b/drivers/gpu/drm/msm/headergen2/rnndec.h
@@ -0,0 +1,59 @@ 
+/*
+ * Copyright (C) 2010 Marcin Kościelnicki <koriakin@0x04.net>
+ * All Rights Reserved.
+ *
+ * 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.
+ */
+
+#ifndef RNNDEC_H
+#define RNNDEC_H
+
+#include "rnn.h"
+#include "colors.h"
+
+struct rnndecvariant {
+	struct rnnenum *en;
+	int variant;
+};
+
+struct rnndeccontext {
+	struct rnndb *db;
+	struct rnndecvariant **vars;
+	int varsnum;
+	int varsmax;
+	const struct envy_colors *colors;
+};
+
+struct rnndecaddrinfo {
+	struct rnntypeinfo *typeinfo;
+	int width;
+	char *name;
+};
+
+struct rnndeccontext *rnndec_newcontext(struct rnndb *db);
+int rnndec_varadd(struct rnndeccontext *ctx, char *varset, const char *variant);
+int rnndec_varmatch(struct rnndeccontext *ctx, struct rnnvarinfo *vi);
+const char *rnndec_decode_enum(struct rnndeccontext *ctx, const char *enumname, uint64_t enumval);
+char *rnndec_decodeval(struct rnndeccontext *ctx, struct rnntypeinfo *ti, uint64_t value);
+int rnndec_checkaddr(struct rnndeccontext *ctx, struct rnndomain *domain, uint64_t addr, int write);
+struct rnndecaddrinfo *rnndec_decodeaddr(struct rnndeccontext *ctx, struct rnndomain *domain, uint64_t addr, int write);
+uint64_t rnndec_decodereg(struct rnndeccontext *ctx, struct rnndomain *domain, const char *name);
+
+#endif
diff --git a/drivers/gpu/drm/msm/headergen2/util.h b/drivers/gpu/drm/msm/headergen2/util.h
new file mode 100644
index 000000000000..98a32a34d076
--- /dev/null
+++ b/drivers/gpu/drm/msm/headergen2/util.h
@@ -0,0 +1,115 @@ 
+/*
+ * Copyright (C) 2010-2011 Marcin Kościelnicki <koriakin@0x04.net>
+ * Copyright (C) 2010 Francisco Jerez <currojerez@riseup.net>
+ * All Rights Reserved.
+ *
+ * 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.
+ */
+
+#ifndef UTIL_H
+#define UTIL_H
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <inttypes.h>
+
+#define ADDARRAY(a, e) \
+	do { \
+	if ((a ## num) >= (a ## max)) { \
+		if (!(a ## max)) \
+			(a ## max) = 16; \
+		else \
+			(a ## max) *= 2; \
+		(a) = realloc((a), (a ## max)*sizeof(*(a))); \
+	} \
+	(a)[(a ## num)++] = (e); \
+	} while(0)
+
+#define FINDARRAY(a, tmp, pred)				\
+	({							\
+		int __i;					\
+								\
+		for (__i = 0; __i < (a ## num); __i++) {	\
+			tmp = (a)[__i];				\
+			if (pred)				\
+				break;				\
+		}						\
+								\
+		tmp = ((pred) ? tmp : NULL);			\
+	})
+
+/* ceil(log2(x)) */
+static inline int clog2(uint64_t x) {
+	if (!x)
+		return x;
+	int r = 0;
+	while (x - 1 > (1ull << r) - 1)
+		r++;
+	return r;
+}
+
+#define ARRAY_SIZE(a) (sizeof (a) / sizeof *(a))
+
+#define min(a,b)				\
+	({					\
+		typeof (a) _a = (a);		\
+		typeof (b) _b = (b);		\
+		_a < _b ? _a : _b;		\
+	})
+
+#define max(a,b)				\
+	({					\
+		typeof (a) _a = (a);		\
+		typeof (b) _b = (b);		\
+		_a > _b ? _a : _b;		\
+	})
+
+#define CEILDIV(a, b) (((a) + (b) - 1)/(b))
+
+#define extr(a, b, c) ((uint64_t)(a) << (64 - (b) - (c)) >> (64 - (c)))
+#define extrs(a, b, c) ((int64_t)(a) << (64 - (b) - (c)) >> (64 - (c))) 
+#define sext(a, b) extrs(a, 0, b+1)
+#define bflmask(a) ((2ull << ((a)-1)) - 1)
+#define insrt(a, b, c, d) ((a) = ((a) & ~(bflmask(c) << (b))) | ((d) & bflmask(c)) << (b))
+
+struct envy_loc {
+	int lstart;
+	int cstart;
+	int lend;
+	int cend;
+	const char *file;
+};
+
+#define LOC_FORMAT(loc, str) "%s:%d.%d-%d.%d: " str, (loc).file, (loc).lstart, (loc).cstart, (loc).lend, (loc).cend
+
+uint32_t elf_hash(const char *str);
+
+FILE *find_in_path(const char *name, const char *path, char **pfullname);
+
+struct astr {
+	char *str;
+	size_t len;
+};
+
+void print_escaped_astr(FILE *out, struct astr *astr);
+
+char *aprintf(const char *format, ...);
+
+#endif
diff --git a/drivers/gpu/drm/msm/headergen2/util/u_debug.h b/drivers/gpu/drm/msm/headergen2/util/u_debug.h
new file mode 100644
index 000000000000..7faeece699d9
--- /dev/null
+++ b/drivers/gpu/drm/msm/headergen2/util/u_debug.h
@@ -0,0 +1,12 @@ 
+/* stub for compiling srcs syncd from mesa */
+
+#ifndef U_DEBUG_H_
+#define U_DEBUG_H_
+
+#if defined(__GNUC__)
+#define _util_printf_format(fmt, list) __attribute__ ((format (printf, fmt, list)))
+#else
+#define _util_printf_format(fmt, list)
+#endif
+
+#endif /* U_DEBUG_H_ */