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intel_gpu_dump: Give a nicer message for missing batchbuffer-dumping code

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This is the case where debugfs is mounted, the dri/0 directory
exists but there's no i915_ringbuffer_info file. Point the user
toward upgrading the driver.
This commit is contained in:
Carl Worth 2009-04-13 14:33:09 -07:00
parent 0a820610ee
commit 5b8c19445c
1 changed files with 13 additions and 0 deletions
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13
tools/intel_gpu_dump.c
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@ -1974,6 +1974,19 @@ main (int argc, char *argv[])
uint32_t ring_head, ring_tail, acthd;
sprintf(filename, "%s/i915_ringbuffer_info", path);
err = stat(filename, &st);
if (err != 0) {
fprintf (stderr,
"Error opening %s: %s\n\n"
"Perhaps your i915 kernel driver has no support for "
"dumping batchbuffer data?\n"
"(In kernels prior to 2.6.30 this requires "
"manually-applied patches.)\n",
path, strerror (errno));
exit (1);
}
parse_ringbuffer_info(filename, &ring_head, &ring_tail, &acthd);
sprintf(filename, "%s/i915_batchbuffers", path);