| Message ID | 20211116003042.439107-3-robdclark@gmail.com (mailing list archive) |
|---|---|
| State | Not Applicable |
| Headers | show |
| Series | msm: Add tests for gpu fault handling | expand |
On Mon, Nov 15, 2021 at 04:30:40PM -0800, Rob Clark wrote: > From: Rob Clark <robdclark@chromium.org> > > Add a helper that can be used with, for ex, igt_require() so that tests > can be skipped if the kernel is too old. > > Signed-off-by: Rob Clark <robdclark@chromium.org> Reviewed-by: Petri Latvala <petri.latvala@intel.com> > --- > lib/igt_debugfs.c | 21 +++++++++++++++++++++ > lib/igt_debugfs.h | 1 + > 2 files changed, 22 insertions(+) > > diff --git a/lib/igt_debugfs.c b/lib/igt_debugfs.c > index dd6f2995..7211c410 100644 > --- a/lib/igt_debugfs.c > +++ b/lib/igt_debugfs.c > @@ -307,6 +307,27 @@ int igt_debugfs_open(int device, const char *filename, int mode) > return ret; > } > > +/** > + * igt_debugfs_exists: > + * @device: the drm device file fd > + * @filename: file name > + * @mode: mode bits as used by open() > + * > + * Test that the specified debugfs file exists and can be opened with the > + * requested mode. > + */ > +bool igt_debugfs_exists(int device, const char *filename, int mode) > +{ > + int fd = igt_debugfs_open(device, filename, mode); > + > + if (fd >= 0) { > + close(fd); > + return true; > + } > + > + return false; > +} > + > /** > * igt_debugfs_simple_read: > * @filename: file name > diff --git a/lib/igt_debugfs.h b/lib/igt_debugfs.h > index b4867681..37e85067 100644 > --- a/lib/igt_debugfs.h > +++ b/lib/igt_debugfs.h > @@ -39,6 +39,7 @@ int igt_debugfs_connector_dir(int device, char *conn_name, int mode); > int igt_debugfs_pipe_dir(int device, int pipe, int mode); > > int igt_debugfs_open(int fd, const char *filename, int mode); > +bool igt_debugfs_exists(int fd, const char *filename, int mode); > void __igt_debugfs_read(int fd, const char *filename, char *buf, int size); > void __igt_debugfs_write(int fd, const char *filename, const char *buf, int size); > int igt_debugfs_simple_read(int dir, const char *filename, char *buf, int size); > -- > 2.33.1 >
diff --git a/lib/igt_debugfs.c b/lib/igt_debugfs.c index dd6f2995..7211c410 100644 --- a/lib/igt_debugfs.c +++ b/lib/igt_debugfs.c @@ -307,6 +307,27 @@ int igt_debugfs_open(int device, const char *filename, int mode) return ret; } +/** + * igt_debugfs_exists: + * @device: the drm device file fd + * @filename: file name + * @mode: mode bits as used by open() + * + * Test that the specified debugfs file exists and can be opened with the + * requested mode. + */ +bool igt_debugfs_exists(int device, const char *filename, int mode) +{ + int fd = igt_debugfs_open(device, filename, mode); + + if (fd >= 0) { + close(fd); + return true; + } + + return false; +} + /** * igt_debugfs_simple_read: * @filename: file name diff --git a/lib/igt_debugfs.h b/lib/igt_debugfs.h index b4867681..37e85067 100644 --- a/lib/igt_debugfs.h +++ b/lib/igt_debugfs.h @@ -39,6 +39,7 @@ int igt_debugfs_connector_dir(int device, char *conn_name, int mode); int igt_debugfs_pipe_dir(int device, int pipe, int mode); int igt_debugfs_open(int fd, const char *filename, int mode); +bool igt_debugfs_exists(int fd, const char *filename, int mode); void __igt_debugfs_read(int fd, const char *filename, char *buf, int size); void __igt_debugfs_write(int fd, const char *filename, const char *buf, int size); int igt_debugfs_simple_read(int dir, const char *filename, char *buf, int size);