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From f9b4545af42fc673f81d043a8512db8ebfe58660 Mon Sep 17 00:00:00 2001
From: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
Date: Fri, 2 Aug 2019 12:02:58 -0700
Subject: [PATCH] Add WA enable/disable control code into cpusensor
This commit adds a PECI WA enable/disable control code. If 'UseWA'
isn't in CPU configuration or the setting is 0, the WA will be
disabled by writing 'N' on the peci_core module parameter.
This is a temporary WA.
Change-Id: I73ae9ac49c9382f3ebdc800c360e078418b124e9
Signed-off-by: Jae Hyun Yoo <jae.hyun.yoo@linux.intel.com>
---
src/CPUSensorMain.cpp | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/src/CPUSensorMain.cpp b/src/CPUSensorMain.cpp
index 2a3ff16f8294..b4085fd1038d 100644
--- a/src/CPUSensorMain.cpp
+++ b/src/CPUSensorMain.cpp
@@ -629,6 +629,25 @@ bool getCpuConfig(
std::cout << "type: " << type << "\n";
}
+ // Temporary WA
+ uint64_t useWA = 0;
+ auto findUseWA = config.second.find("UseWA");
+ if (findUseWA != config.second.end())
+ {
+ useWA = std::visit(VariantToUnsignedIntVisitor(),
+ findUseWA->second);
+ }
+ if (useWA == 0)
+ {
+ std::ofstream deviceFile(
+ "/sys/module/peci_core/parameters/use_wa");
+ if (deviceFile.good())
+ {
+ deviceFile << 'N';
+ }
+ deviceFile.close();
+ }
+
cpuConfigs.emplace(bus, addr, name, State::OFF);
}
}
--
2.7.4
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