Hi, On 09/18/2015 12:17 PM, Thomas Wood wrote:
On 11 September 2015 at 15:31, Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxxxxxxxx> wrote:From: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx> Test that VMAs associated with a context are cleaned up when contexts are destroyed. In practice this emulates the leak seen between fbcon and X server. Every time the X server exits we gain one VMA on the fbcon frame buffer object as externally visible via for example /sys/kernel/debug/dri/0/i915_gem_gtt. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@xxxxxxxxx> --- tests/gem_ppgtt.c | 80 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 80 insertions(+) diff --git a/tests/gem_ppgtt.c b/tests/gem_ppgtt.c index 4f6df063214a..363f9d701585 100644 --- a/tests/gem_ppgtt.c +++ b/tests/gem_ppgtt.c @@ -265,6 +265,83 @@ static void flink_and_close(void) close(fd2); } +static int grep_name(char *match, int to_match)This could be added to igt_debugfs.c, as it might be useful for other tests.
I couldn't force myself to do it.
+{ + int fdd, ret, matched; + + fdd = open("/sys/kernel/debug/dri/0/i915_gem_gtt", O_RDONLY);igt_debugfs_open would be more robust here, as it checks various locations for the debugfs and also attempts to mount it if it can't be found.
Done.
+ igt_assert(fdd >= 0); + + matched = 0; + do { + char ch; + + ret = read(fdd, &ch, 1); + if (ret == 0) + break; + igt_assert(ret == 1); + + if (ch == match[matched]) + matched++; + else + matched = 0; + } while (matched < to_match);igt_debugfs_fopen is also available, which would allow the use of getline and strstr here instead, as a slightly simpler implementation.
Also done. Ah not via fopen but open+fdopen... drat.. You want v3 or you can live with v2? Regards, Tvrtko _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
