summaryrefslogtreecommitdiff
path: root/ifpps
diff options
context:
space:
mode:
authorTobias Klauser <tklauser@distanz.ch>2014-09-05 17:57:29 +0200
committerTobias Klauser <tklauser@distanz.ch>2014-09-05 17:57:29 +0200
commite46767f61986d982501ec59233fabddc2876f63d (patch)
tree7ca71aac900ffcff9504f6e7b9e538500e2312ab /ifpps
parent3014b89a4ba246bef6e35ac7411b57c0aec4676e (diff)
bpfc: Don't duplicate copyright/bug report/license string
Move the copyright/bug report/license string to an own constant and use it for the output of help() and version() to avoid duplication and prevent the strings from getting out of sync. This makes the text section of bpfc.o slightly smaller: before: text data bss dec hex filename 3594 0 0 3594 e0a bpfc/bpfc.o after: text data bss dec hex filename 3313 0 0 3313 cf1 bpfc/bpfc.o Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Diffstat (limited to 'ifpps')
0 files changed, 0 insertions, 0 deletions
because the platform BIOS may erroneously enable an energy-efficiency setting -- MSR_IA32_POWER_CTL BIT-EE, which is not recommended to be enabled on this SKU. On the failing systems, this BIOS issue was not discovered when the desktop motherboard was tested with Windows, because the BIOS also neglects to provide the ACPI/CPPC table, that Windows requires to enable HWP, and so Windows runs in legacy P-state mode, where this setting has no effect. Linux' intel_pstate driver does not require ACPI/CPPC to enable HWP, and so it runs in HWP mode, exposing this incorrect BIOS configuration. There are several ways to address this problem. First, Linux can also run in legacy P-state mode on this system. As intel_pstate is how Linux enables HWP, booting with "intel_pstate=disable" will run in acpi-cpufreq/ondemand legacy p-state mode. Or second, the "performance" governor can be used with intel_pstate, which will modify HWP.EPP to 0. Or third, starting in 4.10, the /sys/devices/system/cpu/cpufreq/policy*/energy_performance_preference attribute in can be updated from "balance_power" to "performance". Or fourth, apply this patch, which fixes the erroneous setting of MSR_IA32_POWER_CTL BIT_EE on this model, allowing the default configuration to function as designed. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Reviewed-by: Len Brown <len.brown@intel.com> Cc: 4.6+ <stable@vger.kernel.org> # 4.6+ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'sound/ppc/burgundy.c')