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    Subject[PATCH 6.0 101/862] powercap: intel_rapl: Use standard Energy Unit for SPR Dram RAPL domain
    Date
    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(-)

    --- 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,
    };

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