linux-kernel - [PATCH 3/3] tools/power turbostat: Use standard Energy Unit for SPR Dram RAPL domain

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Date:   Sat, 24 Sep 2022 13:47:38 +0800
From:   Zhang Rui <rui.zhang@...el.com>
To:     peterz@...radead.org, rjw@...ysocki.net, len.brown@...el.com
Cc:     mingo@...hat.com, linux-pm@...r.kernel.org, x86@...nel.org,
        linux-perf-users@...r.kernel.org, linux-kernel@...r.kernel.org,
        ak@...ux.intel.com, kan.liang@...ux.intel.com,
        artem.bityutskiy@...ux.intel.com
Subject: [PATCH 3/3] tools/power turbostat: Use standard Energy Unit for SPR Dram RAPL domain

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>
---
 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 597cc2dbc456..e3e357df2a51 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);
-- 
2.25.1