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(take 2) Software coordination of freq across CPUs sharing common P-state

PATCH New Venkatesh Pallipadi 1 participant 1 message Sep 14, 2005

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PATCH 4/4 (take 2) Software coordination of freq across CPUs sharing common P-state

[PATCH 4/4] Software coordination of freq across CPUs sharing common P-state

Final knob to turn on the P-state cpu groups in acpi-cpufreq and speedstep-centrino. Add the software coordination bit for _PDC calls.

include/acpi/pdc_intel.h +1 -0
Index: linux-2.6.12/include/acpi/pdc_intel.h
===================================================================
@@ -15,6 +15,7 @@
 #define ACPI_PDC_C_C1_FFH		(0x0100)
 
 #define ACPI_PDC_EST_CAPABILITY_SMP	(ACPI_PDC_SMP_C1PT | \
+					 ACPI_PDC_SMP_P_SWCOORD | \
 					 ACPI_PDC_C_C1_HALT)
 
 #define ACPI_PDC_EST_CAPABILITY_SMP_MSR	(ACPI_PDC_EST_CAPABILITY_SMP | \

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