linux-kernel - [RFC PATCH 2/5] kselftests/resctrl: enable noncont

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Message-ID: <20260123044034.141247-3-tan.shaopeng@fujitsu.com>
Date: Fri, 23 Jan 2026 13:40:28 +0900
From: Shaopeng Tan <tan.shaopeng@...itsu.com>
To: fenghuay@...dia.com,
	reinette.chatre@...el.com,
	ben.horgan@....com,
	james.morse@....com,
	shuah@...nel.org
Cc: linux-kselftest@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	tan.shaopeng@...itsu.com
Subject: [RFC PATCH 2/5] kselftests/resctrl: enable noncont_cat for MPAM

Arm(MPAM driver) also supports non-contiguous CBM.
So enable noncont_cat for Arm.

Signed-off-by: Shaopeng Tan <tan.shaopeng@...itsu.com>
---
 tools/testing/selftests/resctrl/cat_test.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/resctrl/cat_test.c b/tools/testing/selftests/resctrl/cat_test.c
index 94cfdba5308d..e1b30ab4cef5 100644
--- a/tools/testing/selftests/resctrl/cat_test.c
+++ b/tools/testing/selftests/resctrl/cat_test.c
@@ -291,7 +291,8 @@ static int cat_run_test(const struct resctrl_test *test, const struct user_param
 static bool arch_supports_noncont_cat(const struct resctrl_test *test)
 {
 	/* AMD always supports non-contiguous CBM. */
-	if (get_vendor() == ARCH_AMD)
+	/* ARM(MPAM driver) also supports non-contiguous CBM. */
+	if (get_vendor() == ARCH_AMD || get_vendor() == ARCH_ARM)
 		return true;
 
 #if defined(__i386__) || defined(__x86_64__) /* arch */
-- 
2.47.3