powercap: intel_rapl: Use standard Energy Unit for SPR Dram RAPL domain

commit 4c081324df5608b73428662ca54d5221ea03a6bd upstream.

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 dram_domain_energy_unit quirk.

Fixes: 2d798d9f5967 ("powercap: intel_rapl: add support for Sapphire Rapids")
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Tested-by: Wang Wendy <wendy.wang@intel.com>
Cc: 5.9+ <stable@vger.kernel.org> # 5.9+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/powercap/intel_rapl_common.c b/drivers/powercap/intel_rapl_common.c
index 7c0099e..c87d468 100644 (file)
--- a/drivers/powercap/intel_rapl_common.c
+++ b/drivers/powercap/intel_rapl_common.c
@@ -979,7 +979,6 @@ static const struct rapl_defaults rapl_defaults_spr_server = {
        .check_unit = rapl_check_unit_core,
        .set_floor_freq = set_floor_freq_default,
        .compute_time_window = rapl_compute_time_window_core,
-       .dram_domain_energy_unit = 15300,
        .psys_domain_energy_unit = 1000000000,
 };