linux-kernel - [PATCH 1/6] powercap: intel_rapl_tpmi: Fix bogus register reading

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Message-Id: <20240930081801.28502-2-rui.zhang@intel.com>
Date: Mon, 30 Sep 2024 16:17:56 +0800
From: Zhang Rui <rui.zhang@...el.com>
To: rafael.j.wysocki@...el.com
Cc: linux-kernel@...r.kernel.org,
	linux-pm@...r.kernel.org,
	srinivas.pandruvada@...el.com
Subject: [PATCH 1/6] powercap: intel_rapl_tpmi: Fix bogus register reading

Fix bogus reading of the TPMI_RAPL_REG_DOMAIN_INFO register.

Cc: stable@...r.kernel.org
Fixes: 903eb9fb85e3 ("powercap: intel_rapl_tpmi: Fix System Domain probing")
Signed-off-by: Zhang Rui <rui.zhang@...el.com>
---
 drivers/powercap/intel_rapl_tpmi.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/powercap/intel_rapl_tpmi.c b/drivers/powercap/intel_rapl_tpmi.c
index 947544e4d229..7435df083ea4 100644
--- a/drivers/powercap/intel_rapl_tpmi.c
+++ b/drivers/powercap/intel_rapl_tpmi.c
@@ -181,7 +181,7 @@ static int parse_one_domain(struct tpmi_rapl_package *trp, u32 offset)
 			pr_warn(FW_BUG "System domain must support Domain Info register\n");
 			return -ENODEV;
 		}
-		tpmi_domain_info = readq(trp->base + offset + TPMI_RAPL_REG_DOMAIN_INFO);
+		tpmi_domain_info = readq(trp->base + offset + TPMI_RAPL_REG_DOMAIN_INFO * 8);
 		if (!(tpmi_domain_info & TPMI_RAPL_DOMAIN_ROOT))
 			return 0;
 		domain_type = RAPL_DOMAIN_PLATFORM;
-- 
2.34.1