linux-kernel - [PATCH 6.0 657/862] tools/power turbostat: Use standard Energy Unit for SPR Dram RAPL domain

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Message-Id: <20221019083318.988379410@linuxfoundation.org>
Date:   Wed, 19 Oct 2022 10:32:24 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Zhang Rui <rui.zhang@...el.com>,
        Wang Wendy <wendy.wang@...el.com>,
        Len Brown <len.brown@...el.com>,
        Sasha Levin <sashal@...nel.org>
Subject: [PATCH 6.0 657/862] tools/power turbostat: Use standard Energy Unit for SPR Dram RAPL domain

From: Zhang Rui <rui.zhang@...el.com>

[ Upstream commit b2d433ae637626d44c9d4a75dd3330cf68fed9de ]

Intel Xeon servers used to use a fixed energy resolution (15.3uj) for
Dram RAPL domain. But on SPR, Dram RAPL domain follows the standard
energy resolution as described in MSR_RAPL_POWER_UNIT.

Remove the SPR rapl_dram_energy_units quirk.

Fixes: e7af1ed3fa47 ("tools/power turbostat: Support additional CPU model numbers")
Signed-off-by: Zhang Rui <rui.zhang@...el.com>
Tested-by: Wang Wendy <wendy.wang@...el.com>
Signed-off-by: Len Brown <len.brown@...el.com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 tools/power/x86/turbostat/turbostat.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 831dc32d45fa..b7d2a0cd0ac2 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -4560,7 +4560,6 @@ static double rapl_dram_energy_units_probe(int model, double rapl_energy_units)
 	case INTEL_FAM6_SKYLAKE_X:	/* SKX */
 	case INTEL_FAM6_XEON_PHI_KNL:	/* KNL */
 	case INTEL_FAM6_ICELAKE_X:	/* ICX */
-	case INTEL_FAM6_SAPPHIRERAPIDS_X:	/* SPR */
 		return (rapl_dram_energy_units = 15.3 / 1000000);
 	default:
 		return (rapl_energy_units);
-- 
2.35.1