[igt-dev] [PATCH i-g-t 1/1] tests/debugfs_test: Add basic-hwmon test

[Dixit, Ashutosh]

On Mon, 31 Oct 2022 02:55:21 -0700, Riana Tauro wrote:
>
> Add a testcase that verifies hwmon directory in dgfx and prints all
> the entries
>
> Signed-off-by: Riana Tauro <riana.tauro at intel.com>
> ---
>  tests/debugfs_test.c | 14 ++++++++++++--
>  1 file changed, 12 insertions(+), 2 deletions(-)
>
> diff --git a/tests/debugfs_test.c b/tests/debugfs_test.c
> index 0b4b6e23..99fef354 100644
> --- a/tests/debugfs_test.c
> +++ b/tests/debugfs_test.c
> @@ -24,12 +24,13 @@
>
>  #include "i915/gem.h"
>  #include "igt.h"
> +#include "igt_hwmon.h"
>  #include "igt_sysfs.h"
>  #include <fcntl.h>
>  #include <sys/types.h>
>  #include <dirent.h>
>
> -IGT_TEST_DESCRIPTION("Read entries from debugfs and sysfs paths.");
> +IGT_TEST_DESCRIPTION("Read entries from debugfs,hwmon and sysfs paths.");
                                                   ^
Space here ----------------------------------------|

Do we also need to add this test to fast_feedback testlist to add to BAT as
some people are asking? Not sure what the procedure for adding to BAT
testlist is? Let's ask Petri.

Thanks.
--
Ashutosh


>
>  static void read_and_discard_sysfs_entries(int path_fd, int indent)
>  {
> @@ -178,7 +179,7 @@ retry:
>
>  igt_main
>  {
> -	int fd = -1, debugfs, sysfs;
> +	int fd = -1, debugfs, sysfs, hwmon_fd;
>
>	igt_fixture {
>		fd = drm_open_driver_master(DRIVER_INTEL);
> @@ -196,6 +197,15 @@ igt_main
>	igt_subtest("read_all_entries")
>		read_and_discard_sysfs_entries(debugfs, 0);
>
> +	igt_describe("Read all entries from hwmon path");
> +	igt_subtest("basic-hwmon") {
> +		igt_require_f(gem_has_lmem(fd), "Test applicable only for dgfx\n");
> +		hwmon_fd = igt_hwmon_open(fd);
> +		igt_assert(hwmon_fd >= 0);
> +		read_and_discard_sysfs_entries(hwmon_fd, 0);
> +		close(hwmon_fd);
> +	}
> +
>	igt_describe("Read all debugfs entries with display on/off.");
>	igt_subtest_group
>		kms_tests(fd, debugfs);
> --
> 2.25.1
>