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/*
* (C) 2001 Dave Jones.
*
* Licensed under the terms of the GNU GPL License version 2.
*
* Powersaver MSR decoding.
*/
#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include "../x86info.h"
#include "centaur.h"
#include "powersaver.h"
void decode_powersaver(struct cpudata *cpu)
{
union msr_powersaver ps;
if (!user_is_root)
return;
dumpmsr(cpu->number, MSR_POWERSAVER, 64);
printf("\n");
if (read_msr(cpu->number, MSR_POWERSAVER, &ps.val) != 1) {
printf("Something went wrong reading MSR_POWERSAVER\n");
return;
}
printf(" RevisionID: %x : ", ps.bits.RevisionID);
switch (ps.bits.RevisionID) {
case 0x0: printf("Initial revision (Software clock multiplier only, no SoftVID)\n");
break;
case 0x1: printf("SoftVID support\n");
break;
default: printf("Unknown (0x%x).\n", ps.bits.RevisionID);
break;
}
printf(" Software clock multiplier is ");
if (ps.bits.EnableSoftBusRatio == 0)
printf("disabled\n");
else {
printf("enabled\n");
printf("\tMaxMHzBR4: %s\n", ps.bits.MaxMHzBR4 ? "1" : "0");
printf("\tMaxMHzBR: ");
binary (4, ps.bits.MaxMHzBR);
printf("\tMinMHzBR4: %s\n", ps.bits.MinMHzBR4 ? "1" : "0");
printf("\tMinMHzBR: ");
binary (4, ps.bits.MinMHzBR);
}
/* these bits invalid if revision == 0*/
if (ps.bits.RevisionID != 0) {
printf(" Software VID is ");
if (ps.bits.EnableSoftVID == 0)
printf("disabled\n");
else {
printf("enabled\n");
printf("\tVRM Rev=%s\n",
ps.bits.VRMRev ? "Mobile VRM" : "VRM 8.5");
printf("\tMinimumVID: ");
binary (4, ps.bits.MinimumVID);
printf("\tMaximumVID: ");
binary (5, ps.bits.MaximumVID);
}
if (ps.bits.EnableSoftBusRatio==1) {
printf("\tEnableSoftBusRatio=Enabled\n");
printf("\tMaxMHzFSB: ");
binary (2, ps.bits.MaxMHzFSB);
printf("\tMinMHzFSB: ");
binary (2, ps.bits.MinMHzFSB);
}
//if (ps.bits.EnableSoftBSEL==1)
// printf("\tEnableSoftBSEL=Enabled\n");
printf("\tSoftBusRatio4=%s\n", ps.bits.SoftBusRatio4 ? "1" : "0");
printf("\tSoftBusRatio=");
binary (4, ps.bits.SoftBusRatio);
}
}
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