intel: aubinator: generate a standalone binary

Embed the xml files into the binary, so aubinator can be used from any
location.

v2: Split generation packing into another patch (Jason)
    Check for xxd (Jason)

v3: Fix out of tree builds (Jason)
    Generate custom variable name rather than names generated by xxd
    (Lionel)

v4: Move generated _xml.h files to genxml/ (Sirisha)

v5: Remove newline from makefile (Jason)

v6: Add comment on gen*_xml.h creation (Jason)

Signed-off-by: Lionel Landwerlin <[email protected]>
Reviewed-by: Jason Ekstrand <[email protected]>

6 files changed, 102 insertions, 53 deletions

diff --git a/src/intel/Makefile.genxml.am b/src/intel/Makefile.genxml.am
index f80e2fd3bb8..8d7d4026638 100644
--- a/src/intel/Makefile.genxml.am
+++ b/src/intel/Makefile.genxml.am
@@ -21,7 +21,7 @@
 
 BUILT_SOURCES += $(GENXML_GENERATED_FILES)
 
-SUFFIXES = _pack.h .xml
+SUFFIXES = _pack.h _xml.h .xml
 
 $(GENXML_GENERATED_FILES): genxml/gen_pack_header.py
 
@@ -29,6 +29,16 @@ $(GENXML_GENERATED_FILES): genxml/gen_pack_header.py
 	$(MKDIR_GEN)
 	$(PYTHON_GEN) $(srcdir)/genxml/gen_pack_header.py $< > $@
 
+# xxd generates variable names based on the path of the input file. We
+# prefer to generate our own name here, so it doesn't vary from
+# in/out-of-tree builds.
+%_xml.h:  %.xml Makefile
+	$(MKDIR_GEN)
+	$(AM_V_GEN) echo -n "static const uint8_t " > $@; \
+	sed -e 's,_xml.h,,' <<< "`basename $@`_xml[] = {" >> $@; \
+	cat $< | $(XXD) -i >> $@; \
+	echo "};" >> $@
+
 EXTRA_DIST += \
 	genxml/gen4.xml \
 	genxml/gen45.xml \
diff --git a/src/intel/Makefile.sources b/src/intel/Makefile.sources
index 22ca63bc388..5b759bf98f0 100644
--- a/src/intel/Makefile.sources
+++ b/src/intel/Makefile.sources
@@ -21,7 +21,12 @@ GENXML_GENERATED_FILES = \
 	genxml/gen7_pack.h \
 	genxml/gen75_pack.h \
 	genxml/gen8_pack.h \
-	genxml/gen9_pack.h
+	genxml/gen9_pack.h \
+	genxml/gen6_xml.h \
+	genxml/gen7_xml.h \
+	genxml/gen75_xml.h \
+	genxml/gen8_xml.h \
+	genxml/gen9_xml.h
 
 ISL_FILES = \
 	isl/isl.c \
diff --git a/src/intel/genxml/.gitignore b/src/intel/genxml/.gitignore
index dd114953c31..c5672b5595c 100644
--- a/src/intel/genxml/.gitignore
+++ b/src/intel/genxml/.gitignore
@@ -1 +1,2 @@
 gen*_pack.h
+gen*_xml.h
diff --git a/src/intel/tools/aubinator.c b/src/intel/tools/aubinator.c
index 44a6bb2aa7b..8be7580c2b1 100644
--- a/src/intel/tools/aubinator.c
+++ b/src/intel/tools/aubinator.c
@@ -1048,21 +1048,19 @@ int main(int argc, char *argv[])
    int c, i;
    bool help = false, pager = true;
    const char *input_file = NULL;
-   char gen_file[256], gen_val[24];
+   char gen_val[24];
    const struct {
       const char *name;
       int pci_id;
-      int major;
-      int minor;
    } gens[] = {
-      { "ivb", 0x0166, 7, 0 }, /* Intel(R) Ivybridge Mobile GT2 */
-      { "hsw", 0x0416, 7, 5 }, /* Intel(R) Haswell Mobile GT2 */
-      { "byt", 0x0155, 7, 5 }, /* Intel(R) Bay Trail */
-      { "bdw", 0x1616, 8, 0 }, /* Intel(R) HD Graphics 5500 (Broadwell GT2) */
-      { "chv", 0x22B3, 8, 0 }, /* Intel(R) HD Graphics (Cherryview) */
-      { "skl", 0x1912, 9, 0 }, /* Intel(R) HD Graphics 530 (Skylake GT2) */
-      { "kbl", 0x591D, 9, 0 }, /* Intel(R) Kabylake GT2 */
-      { "bxt", 0x0A84, 9, 0 }  /* Intel(R) HD Graphics (Broxton) */
+      { "ivb", 0x0166 }, /* Intel(R) Ivybridge Mobile GT2 */
+      { "hsw", 0x0416 }, /* Intel(R) Haswell Mobile GT2 */
+      { "byt", 0x0155 }, /* Intel(R) Bay Trail */
+      { "bdw", 0x1616 }, /* Intel(R) HD Graphics 5500 (Broadwell GT2) */
+      { "chv", 0x22B3 }, /* Intel(R) HD Graphics (Cherryview) */
+      { "skl", 0x1912 }, /* Intel(R) HD Graphics 530 (Skylake GT2) */
+      { "kbl", 0x591D }, /* Intel(R) Kabylake GT2 */
+      { "bxt", 0x0A84 }  /* Intel(R) HD Graphics (Broxton) */
    }, *gen = NULL;
    const struct option aubinator_opts[] = {
       { "help",       no_argument,       (int *) &help,                 true },
@@ -1073,6 +1071,7 @@ int main(int argc, char *argv[])
       { "color",      required_argument, NULL,                          'c' },
       { NULL,         0,                 NULL,                          0 }
    };
+   struct gen_device_info devinfo;
 
    i = 0;
    while ((c = getopt_long(argc, argv, "", aubinator_opts, &i)) != -1) {
@@ -1118,6 +1117,13 @@ int main(int argc, char *argv[])
       exit(EXIT_FAILURE);
    }
 
+   if (!gen_get_device_info(gen->pci_id, &devinfo)) {
+      fprintf(stderr, "can't find device information: pci_id=0x%x name=%s\n",
+              gen->pci_id, gen->name);
+      exit(EXIT_FAILURE);
+   }
+
+
    /* Do this before we redirect stdout to pager. */
    if (option_color == COLOR_AUTO)
       option_color = isatty(1) ? COLOR_ALWAYS : COLOR_NEVER;
@@ -1125,14 +1131,7 @@ int main(int argc, char *argv[])
    if (isatty(1) && pager)
       setup_pager();
 
-   if (gen->minor > 0) {
-      snprintf(gen_file, sizeof(gen_file), "../genxml/gen%d%d.xml",
-               gen->major, gen->minor);
-   } else {
-      snprintf(gen_file, sizeof(gen_file), "../genxml/gen%d.xml", gen->major);
-   }
-
-   spec = gen_spec_load(gen_file);
+   spec = gen_spec_load(&devinfo);
    disasm = gen_disasm_create(gen->pci_id);
 
    if (input_file == NULL) {
diff --git a/src/intel/tools/decoder.c b/src/intel/tools/decoder.c
index 4cbaab2e0c3..778cd5bd9b5 100644
--- a/src/intel/tools/decoder.c
+++ b/src/intel/tools/decoder.c
@@ -33,6 +33,12 @@
 
 #include "decoder.h"
 
+#include "genxml/gen6_xml.h"
+#include "genxml/gen7_xml.h"
+#include "genxml/gen75_xml.h"
+#include "genxml/gen8_xml.h"
+#include "genxml/gen9_xml.h"
+
 #define XML_BUFFER_SIZE 4096
 
 #define MAKE_GEN(major, minor) ( ((major) << 8) | (minor) )
@@ -395,57 +401,83 @@ character_data(void *data, const XML_Char *s, int len)
 {
 }
 
+static int
+devinfo_to_gen(const struct gen_device_info *devinfo)
+{
+   int value = 10 * devinfo->gen;
+
+   if (devinfo->is_baytrail || devinfo->is_haswell)
+      value += 5;
+
+   return value;
+}
+
+static const struct {
+   int gen;
+   const uint8_t *data;
+   size_t data_length;
+} gen_data[] = {
+   { .gen = 60, .data = gen6_xml, .data_length = sizeof(gen6_xml) },
+   { .gen = 70, .data = gen7_xml, .data_length = sizeof(gen7_xml) },
+   { .gen = 75, .data = gen75_xml, .data_length = sizeof(gen75_xml) },
+   { .gen = 80, .data = gen8_xml, .data_length = sizeof(gen8_xml) },
+   { .gen = 90, .data = gen9_xml, .data_length = sizeof(gen9_xml) }
+};
+
+static const uint8_t *
+devinfo_to_xml_data(const struct gen_device_info *devinfo,
+                    uint32_t *data_length)
+{
+   int i, gen = devinfo_to_gen(devinfo);
+
+   for (i = 0; i < ARRAY_SIZE(gen_data); i++) {
+      if (gen_data[i].gen == gen) {
+         *data_length = gen_data[i].data_length;
+         return gen_data[i].data;
+      }
+   }
+
+   unreachable("Unknown generation");
+   return NULL;
+}
+
 struct gen_spec *
-gen_spec_load(const char *filename)
+gen_spec_load(const struct gen_device_info *devinfo)
 {
    struct parser_context ctx;
    void *buf;
-   int len;
-   FILE *input;
-
-   input = fopen(filename, "r");
-   printf("xml filename = %s\n", filename);
-   if (input == NULL) {
-      fprintf(stderr, "failed to open xml description\n");
-      exit(EXIT_FAILURE);
-   }
+   const void *data;
+   uint32_t data_length = 0;
 
    memset(&ctx, 0, sizeof ctx);
    ctx.parser = XML_ParserCreate(NULL);
    XML_SetUserData(ctx.parser, &ctx);
    if (ctx.parser == NULL) {
       fprintf(stderr, "failed to create parser\n");
-      fclose(input);
       return NULL;
    }
 
    XML_SetElementHandler(ctx.parser, start_element, end_element);
    XML_SetCharacterDataHandler(ctx.parser, character_data);
-   ctx.loc.filename = filename;
 
    ctx.spec = xzalloc(sizeof(*ctx.spec));
 
-   do {
-      buf = XML_GetBuffer(ctx.parser, XML_BUFFER_SIZE);
-      len = fread(buf, 1, XML_BUFFER_SIZE, input);
-      if (len < 0) {
-         fprintf(stderr, "fread: %m\n");
-         fclose(input);
-         return NULL;
-      }
-      if (XML_ParseBuffer(ctx.parser, len, len == 0) == 0) {
-         fprintf(stderr,
-                 "Error parsing XML at line %ld col %ld: %s\n",
-                 XML_GetCurrentLineNumber(ctx.parser),
-                 XML_GetCurrentColumnNumber(ctx.parser),
-                 XML_ErrorString(XML_GetErrorCode(ctx.parser)));
-         fclose(input);
-         return NULL;
-      }
-   } while (len > 0);
+   data = devinfo_to_xml_data(devinfo, &data_length);
+   buf = XML_GetBuffer(ctx.parser, data_length);
+
+   memcpy(buf, data, data_length);
+
+   if (XML_ParseBuffer(ctx.parser, data_length, true) == 0) {
+      fprintf(stderr,
+              "Error parsing XML at line %ld col %ld: %s\n",
+              XML_GetCurrentLineNumber(ctx.parser),
+              XML_GetCurrentColumnNumber(ctx.parser),
+              XML_ErrorString(XML_GetErrorCode(ctx.parser)));
+      XML_ParserFree(ctx.parser);
+      return NULL;
+   }
 
    XML_ParserFree(ctx.parser);
-   fclose(input);
 
    return ctx.spec;
 }
diff --git a/src/intel/tools/decoder.h b/src/intel/tools/decoder.h
index f688ba59e8b..5bea9b957f6 100644
--- a/src/intel/tools/decoder.h
+++ b/src/intel/tools/decoder.h
@@ -26,6 +26,8 @@
 #include <stdint.h>
 #include <stdbool.h>
 
+#include "common/gen_device_info.h"
+
 struct gen_spec;
 struct gen_group;
 struct gen_field;
@@ -36,7 +38,7 @@ static inline uint32_t gen_make_gen(uint32_t major, uint32_t minor)
 }
 
 struct gen_group *gen_spec_find_struct(struct gen_spec *spec, const char *name);
-struct gen_spec *gen_spec_load(const char *filename);
+struct gen_spec *gen_spec_load(const struct gen_device_info *devinfo);
 uint32_t gen_spec_get_gen(struct gen_spec *spec);
 struct gen_group *gen_spec_find_instruction(struct gen_spec *spec, const uint32_t *p);
 struct gen_group *gen_spec_find_register(struct gen_spec *spec, uint32_t offset);