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intel_gpu_dump: Add no-arguments automatic mode, and clean up comments.

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This commit is contained in:
Eric Anholt 2009-04-12 18:03:25 -07:00
parent 5b40c86c9a
commit 48888093b2
1 changed files with 29 additions and 17 deletions
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46
tools/intel_gpu_dump.c
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@ -1857,11 +1857,8 @@ read_data_file (const char * filename, int is_batch)
fclose (file);
}
/* Go poking in the directory next to the named file to see if ringbuffer
* info's there.
*
* It would be cleaner if the argv to gpu dump was the location of the
* debugfs dir, and we just appended.
/* Grab the head/tail pointers we know about so we can annotate the batch
* and ring dumps.
*/
static void
parse_ringbuffer_info(const char *filename,
@ -1911,7 +1908,7 @@ parse_ringbuffer_info(const char *filename,
fclose (file);
}
/* By default, we'll want to grab the state of the current hardware
/* By default, we grab the state of the current hardware
* by looking into the various debugfs nodes and grabbing all the
* relevant data.
*
@ -1928,28 +1925,43 @@ main (int argc, char *argv[])
struct stat st;
int err;
if (argc < 2) {
if (argc > 2) {
fprintf (stderr,
"intel_gpu_dump: Parse an Intel GPU ringbuffer/batchbuffer data file\n"
"intel_gpu_dump: Parse an Intel GPU ringbuffer/batchbuffer state\n"
"\n"
"Usage:\n"
"\t%s\n"
"\t%s <debugfs-dri-directory>\n"
"\t%s <data-file>\n"
"\n"
"The data file can be found in either i915_ringbuffer_data\n"
"or i915_batchbuffers file as made available via debugfs by\n"
"the i915 kernel driver (as of Linux 2.6.30 or so).\n",
argv[0], argv[0]);
"With no arguments, debugfs-dri-directory is probed for in "
"/debug and \n"
"/sys/kernel/debug. Otherwise, it may be "
"specified. If a file is given,\n"
"it is parsed as a batchbuffer in the format of "
"/debug/dri/0/i915_batchbuffers.\n",
argv[0], argv[0], argv[0]);
return 1;
}
intel_get_pci_device();
path = argv[1];
err = stat(path, &st);
if (err != 0)
errx(1, "Couldn't stat the file or directory\n");
if (argc == 1) {
path = "/debug/dri/0";
err = stat(path, &st);
if (err != 0) {
path = "/sys/kernel/debug/dri/0";
err = stat(path, &st);
if (err != 0) {
errx(1, "Couldn't find i915 debugfs directory\n");
}
}
} else {
path = argv[1];
err = stat(path, &st);
if (err != 0)
errx(1, "Couldn't stat the file or directory\n");
}
if (S_ISDIR(st.st_mode)) {
char filename[1000];