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powercap: intel_rapl_tpmi: Fix bogus register reading

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commit 91e8f835a7eda4ba2c0c4002a3108a0e3b22d34e upstream.

The TPMI_RAPL_REG_DOMAIN_INFO value needs to be multiplied by 8 to get
the register offset.

Cc: All applicable <stable@vger.kernel.org>
Fixes: 903eb9fb85e3 ("powercap: intel_rapl_tpmi: Fix System Domain probing")
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Link: https://patch.msgid.link/20240930081801.28502-2-rui.zhang@intel.com
[ rjw: Changelog edits ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Zhang Rui
2024-09-30 16:17:56 +08:00
committed by Greg Kroah-Hartman
parent 697e3ddcf1
commit bd3222d47f
1 changed files with 1 additions and 1 deletions
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2
drivers/powercap/intel_rapl_tpmi.c
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@@ -192,7 +192,7 @@ static int parse_one_domain(struct tpmi_rapl_package *trp, u32 offset)
pr_warn(FW_BUG "System domain must support Domain Info register\n");
return -ENODEV;
}
tpmi_domain_info = readq(trp->base + offset + TPMI_RAPL_REG_DOMAIN_INFO);
tpmi_domain_info = readq(trp->base + offset + TPMI_RAPL_REG_DOMAIN_INFO * 8);
if (!(tpmi_domain_info & TPMI_RAPL_DOMAIN_ROOT))
return 0;
domain_type = RAPL_DOMAIN_PLATFORM;