From: Jesse Barnes Date: Tue, 5 Oct 2010 18:26:22 +0000 (-0700) Subject: IPS driver: apply BIOS provided CPU limit if different from default X-Git-Tag: v2.6.36-rc8~14^2~2 X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=4fd07ac00d87b942cc8d8f30a27192fea2fc4ab2;p=~shefty%2Frdma-dev.git IPS driver: apply BIOS provided CPU limit if different from default The BIOS may hand us a lower CPU power limit than the default for a given SKU. We should use it in case the platform isn't designed to dissapate the full TDP of a given part. Signed-off-by: Jesse Barnes Signed-off-by: Matthew Garrett --- diff --git a/drivers/platform/x86/intel_ips.c b/drivers/platform/x86/intel_ips.c index 76e41dc45f7..50ab1c93e36 100644 --- a/drivers/platform/x86/intel_ips.c +++ b/drivers/platform/x86/intel_ips.c @@ -1391,9 +1391,10 @@ static struct ips_mcp_limits *ips_detect_cpu(struct ips_driver *ips) tdp = turbo_power & TURBO_TDP_MASK; /* Sanity check TDP against CPU */ - if (limits->mcp_power_limit != (tdp / 8) * 1000) { - dev_warn(&ips->dev->dev, "Warning: CPU TDP doesn't match expected value (found %d, expected %d)\n", - tdp / 8, limits->mcp_power_limit / 1000); + if (limits->core_power_limit != (tdp / 8) * 1000) { + dev_info(&ips->dev->dev, "CPU TDP doesn't match expected value (found %d, expected %d)\n", + tdp / 8, limits->core_power_limit / 1000); + limits->core_power_limit = (tdp / 8) * 1000; } out: