[PATCH i-g-t 2/3] tests/intel/xe_pm: Add mocs runtime suspend resume test
Nilawar, Badal
badal.nilawar at intel.com
Tue May 7 09:42:59 UTC 2024
On 04-05-2024 18:34, janga.rahul.kumar at intel.com wrote:
> From: Janga Rahul Kumar <janga.rahul.kumar at intel.com>
>
> Add test to check mocs values are retained over runtime
> suspend/resume.
>
> Cc: Badal Nilawar <badal.nilawar at intel.com>
> Cc: Matt Roper <matthew.d.roper at intel.com>
> Signed-off-by: Janga Rahul Kumar <janga.rahul.kumar at intel.com>
Reviewed-by: Badal Nilawar <badal.nilawar at intel.com>
> ---
> tests/intel/xe_pm.c | 43 +++++++++++++++++++++++++++++++++++++++++++
> 1 file changed, 43 insertions(+)
>
> diff --git a/tests/intel/xe_pm.c b/tests/intel/xe_pm.c
> index 51442537b..73fd57636 100644
> --- a/tests/intel/xe_pm.c
> +++ b/tests/intel/xe_pm.c
> @@ -609,6 +609,45 @@ static void test_mmap(device_t device, uint32_t placement, uint32_t flags)
> close(fw_handle);
> }
>
> +/**
> + * SUBTEST: mocs_suspend_resume
> + * Description:
> + * Validate mocs register contents over suspend resume
> + *
> + * Functionality: mocs
> + * Run type: FULL
> + */
> +static void test_mocs_suspend_resume(device_t device)
> +{
> + int gt;
> +
> + xe_for_each_gt(device.fd_xe, gt) {
> + char path[256];
> +
> + // Mocs debugfs contents before and after suspend-resume
> + char mocs_content_pre[4096], mocs_contents_post[4096];
> +
> + sprintf(path, "gt%d/mocs", gt);
> + igt_assert(igt_debugfs_exists(device.fd_xe, path, O_RDONLY));
> + igt_debugfs_dump(device.fd_xe, path);
> + igt_debugfs_read(device.fd_xe, path, mocs_content_pre);
> +
> + fw_handle = igt_debugfs_open(device.fd_xe, "forcewake_all", O_RDONLY);
> + igt_assert(fw_handle >= 0);
> + igt_assert(igt_get_runtime_pm_status() == IGT_RUNTIME_PM_STATUS_ACTIVE);
> +
> + /* Runtime suspend */
> + close(fw_handle);
> + igt_assert(igt_wait_for_pm_status(IGT_RUNTIME_PM_STATUS_SUSPENDED));
> +
> + igt_assert(igt_debugfs_exists(device.fd_xe, path, O_RDONLY));
> + igt_debugfs_dump(device.fd_xe, path);
> + igt_debugfs_read(device.fd_xe, path, mocs_contents_post);
> +
> + igt_assert(strcmp(mocs_content_pre, mocs_contents_post) == 0);
> + }
> +}
> +
> igt_main
> {
> struct drm_xe_engine_class_instance *hwe;
> @@ -767,6 +806,10 @@ igt_main
> dpms_on_off(device, DRM_MODE_DPMS_ON);
> igt_pm_set_autosuspend_delay(device.pci_xe, delay_ms);
> }
> +
> + igt_subtest("mocs_suspend_resume")
> + test_mocs_suspend_resume(device);
> +
> }
>
> igt_fixture {
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