[PATCH v2] i915/gt/selftest_lrc: Disable timestamp test

[Mikolaj Wasiak]

This test was supposed to show bug in tigerlake and dg2 hardware.
The bug was found and fixed in newer generations.
Since we won't support any new hardware with this driver, the test
should now be turned off in the CI to not polute it with random failures
on previous hardware.

Signed-off-by: Mikolaj Wasiak <mikolaj.wasiak at intel.com>
---

Fixes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/13697

v1 -> v2: Disabled the test instead of removing it,
					Change name from 'remove' to 'disable'

 drivers/gpu/drm/i915/gt/selftest_lrc.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/gpu/drm/i915/gt/selftest_lrc.c b/drivers/gpu/drm/i915/gt/selftest_lrc.c
index 22e750108c5f..419a7cd61b65 100644
--- a/drivers/gpu/drm/i915/gt/selftest_lrc.c
+++ b/drivers/gpu/drm/i915/gt/selftest_lrc.c
@@ -3,6 +3,7 @@
  * Copyright © 2018 Intel Corporation
  */
 
+#include "linux/kconfig.h"
 #include <linux/prime_numbers.h>
 
 #include "gem/i915_gem_internal.h"
@@ -858,6 +859,16 @@ static int live_lrc_timestamp(void *arg)
 		U32_MAX,
 	};
 
+	/*
+	 * This test was created to show existence of hardware bug.
+	 * The bug was found and fixed in further generations but
+	 * now this test polutes our CI on previous generations.
+	 *
+	 * https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/13697
+	 */
+	if (!IS_ENABLED(CONFIG_DRM_I915_SELFTEST_BROKEN))
+		return 0;
+
 	/*
 	 * We want to verify that the timestamp is saved and restore across
 	 * context switches and is monotonic.
-- 
2.48.1