diff options
| author | Mika Kuoppala <mika.kuoppala@linux.intel.com> | 2013-04-11 16:11:28 +0300 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2013-04-11 17:26:56 +0200 |
| commit | a7ca33b673ee90b0a93ffdb18449256798f67786 (patch) | |
| tree | 2d4e5523eb41c7c707984c85f9c668de6777db92 /tests/gem_seqno_wrap.c | |
| parent | 918e763e2dd474a58c43c145c10e7f3aa4ec9a39 (diff) | |
tests/gem_seqno_wrap: verify debugfs write with readback
Make sure that debugfs entry works as expected by reading
back the sequence number that was written.
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'tests/gem_seqno_wrap.c')
| -rw-r--r-- | tests/gem_seqno_wrap.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/tests/gem_seqno_wrap.c b/tests/gem_seqno_wrap.c index 43e385132..776dedc92 100644 --- a/tests/gem_seqno_wrap.c +++ b/tests/gem_seqno_wrap.c @@ -438,6 +438,7 @@ static int write_seqno(uint32_t seqno) int fh; char buf[32]; int r; + uint32_t rb; if (options.dontwrap) return 0; @@ -457,6 +458,15 @@ static int write_seqno(uint32_t seqno) if (options.verbose) printf("next_seqno set to: 0x%x\n", seqno); + r = __read_seqno(&rb); + if (r < 0) + return r; + + if (rb != seqno) { + printf("seqno readback differs rb:0x%x vs w:0x%x\n", rb, seqno); + return -1; + } + return 0; } |