[5.19,090/717] powercap: intel_rapl: Use standard Energy Unit for SPR Dram RAPL domain

Message ID 20221022072431.304446345@linuxfoundation.org
State New
Headers
Series None |

Commit Message

Greg KH Oct. 22, 2022, 7:19 a.m. UTC
  From: Zhang Rui <rui.zhang@intel.com>

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>
---
 drivers/powercap/intel_rapl_common.c |    1 -
 1 file changed, 1 deletion(-)
  

Patch

--- a/drivers/powercap/intel_rapl_common.c
+++ b/drivers/powercap/intel_rapl_common.c
@@ -1035,7 +1035,6 @@  static const struct rapl_defaults rapl_d
 	.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,
 	.spr_psys_bits = true,
 };