linux-kernel - [PATCH v6 11/13] selftests/resctrl: Use cache index3 id for AMD schemata masks

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Message-Id: <1549584101-85811-12-git-send-email-fenghua.yu@intel.com>
Date:   Thu,  7 Feb 2019 16:01:39 -0800
From:   Fenghua Yu <fenghua.yu@...el.com>
To:     "Thomas Gleixner" <tglx@...utronix.de>,
        "Ingo Molnar" <mingo@...hat.com>, "Borislav Petkov" <bp@...en8.de>,
        "H Peter Anvin" <hpa@...or.com>, "Tony Luck" <tony.luck@...el.com>,
        "Reinette Chatre" <reinette.chatre@...el.com>,
        "Ravi V Shankar" <ravi.v.shankar@...el.com>,
        "Xiaochen Shen" <xiaochen.shen@...el.com>,
        "Arshiya Hayatkhan Pathan" <arshiya.hayatkhan.pathan@...el.com>,
        "Sai Praneeth Prakhya" <sai.praneeth.prakhya@...el.com>,
        "Babu Moger" <babu.moger@....com>
Cc:     "linux-kernel" <linux-kernel@...r.kernel.org>,
        Fenghua Yu <fenghua.yu@...el.com>
Subject: [PATCH v6 11/13] selftests/resctrl: Use cache index3 id for AMD schemata masks

From: Babu Moger <babu.moger@....com>

AMD uses the cache l3 boundary for schemata masks. Update it accordigly.

Signed-off-by: Babu Moger <babu.moger@....com>
Signed-off-by: Fenghua Yu <fenghua.yu@...el.com>
---
 tools/testing/selftests/resctrl/resctrlfs.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/resctrl/resctrlfs.c b/tools/testing/selftests/resctrl/resctrlfs.c
index e4568e23cff8..0676b05a5c46 100644
--- a/tools/testing/selftests/resctrl/resctrlfs.c
+++ b/tools/testing/selftests/resctrl/resctrlfs.c
@@ -110,8 +110,13 @@ int get_resource_id(int cpu_no, int *resource_id)
 	char phys_pkg_path[1024];
 	FILE *fp;
 
-	sprintf(phys_pkg_path, "%s%d/topology/physical_package_id",
-		PHYS_ID_PATH, cpu_no);
+	if (authentic_amd)
+		sprintf(phys_pkg_path, "%s%d/cache/index3/id",
+			PHYS_ID_PATH, cpu_no);
+	else
+		sprintf(phys_pkg_path, "%s%d/topology/physical_package_id",
+			PHYS_ID_PATH, cpu_no);
+
 	fp = fopen(phys_pkg_path, "r");
 	if (!fp) {
 		perror("Failed to open physical_package_id");
-- 
2.7.4