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tools/power turbostat: dump Atom P-states correctly

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Turbostat dumps MSR_TURBO_RATIO_LIMIT on Core Architecture.
But Atom Architecture uses MSR_ATOM_CORE_RATIOS and
MSR_ATOM_CORE_TURBO_RATIOS.

Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Len Brown 2017-01-12 23:49:18 -05:00
parent 92134bdbc6
commit 0f7887c49b
1 changed files with 82 additions and 21 deletions
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103
tools/power/x86/turbostat/turbostat.c
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@ -1721,6 +1721,54 @@ dump_nhm_turbo_ratio_limits(void)
return;
}
static void
dump_atom_turbo_ratio_limits(void)
{
unsigned long long msr;
unsigned int ratio;
get_msr(base_cpu, MSR_ATOM_CORE_RATIOS, &msr);
fprintf(outf, "cpu%d: MSR_ATOM_CORE_RATIOS: 0x%08llx\n", base_cpu, msr & 0xFFFFFFFF);
ratio = (msr >> 0) & 0x3F;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz minimum operating frequency\n",
ratio, bclk, ratio * bclk);
ratio = (msr >> 8) & 0x3F;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz low frequency mode (LFM)\n",
ratio, bclk, ratio * bclk);
ratio = (msr >> 16) & 0x3F;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz base frequency\n",
ratio, bclk, ratio * bclk);
get_msr(base_cpu, MSR_ATOM_CORE_TURBO_RATIOS, &msr);
fprintf(outf, "cpu%d: MSR_ATOM_CORE_TURBO_RATIOS: 0x%08llx\n", base_cpu, msr & 0xFFFFFFFF);
ratio = (msr >> 24) & 0x3F;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz max turbo 4 active cores\n",
ratio, bclk, ratio * bclk);
ratio = (msr >> 16) & 0x3F;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz max turbo 3 active cores\n",
ratio, bclk, ratio * bclk);
ratio = (msr >> 8) & 0x3F;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz max turbo 2 active cores\n",
ratio, bclk, ratio * bclk);
ratio = (msr >> 0) & 0x3F;
if (ratio)
fprintf(outf, "%d * %.1f = %.1f MHz max turbo 1 active core\n",
ratio, bclk, ratio * bclk);
}
static void
dump_knl_turbo_ratio_limits(void)
{
@ -2496,8 +2544,32 @@ int probe_nhm_msrs(unsigned int family, unsigned int model)
has_base_hz = 1;
return 1;
}
/*
* SLV client has supporet for unique MSRs:
*
* MSR_CC6_DEMOTION_POLICY_CONFIG
* MSR_MC6_DEMOTION_POLICY_CONFIG
*/
int has_slv_msrs(unsigned int family, unsigned int model)
{
if (!genuine_intel)
return 0;
switch (model) {
case INTEL_FAM6_ATOM_SILVERMONT1:
case INTEL_FAM6_ATOM_MERRIFIELD:
case INTEL_FAM6_ATOM_MOOREFIELD:
return 1;
}
return 0;
}
int has_nhm_turbo_ratio_limit(unsigned int family, unsigned int model)
{
if (has_slv_msrs(family, model))
return 0;
switch (model) {
/* Nehalem compatible, but do not include turbo-ratio limit support */
case INTEL_FAM6_NEHALEM_EX: /* Nehalem-EX Xeon - Beckton */
@ -2509,6 +2581,13 @@ int has_nhm_turbo_ratio_limit(unsigned int family, unsigned int model)
return 1;
}
}
int has_atom_turbo_ratio_limit(unsigned int family, unsigned int model)
{
if (has_slv_msrs(family, model))
return 1;
return 0;
}
int has_ivt_turbo_ratio_limit(unsigned int family, unsigned int model)
{
if (!genuine_intel)
@ -2606,6 +2685,9 @@ dump_cstate_pstate_config_info(unsigned int family, unsigned int model)
if (has_nhm_turbo_ratio_limit(family, model))
dump_nhm_turbo_ratio_limits();
if (has_atom_turbo_ratio_limit(family, model))
dump_atom_turbo_ratio_limits();
if (has_knl_turbo_ratio_limit(family, model))
dump_knl_turbo_ratio_limits();
@ -3286,27 +3368,6 @@ int has_snb_msrs(unsigned int family, unsigned int model)
return 0;
}
/*
* SLV client has supporet for unique MSRs:
*
* MSR_CC6_DEMOTION_POLICY_CONFIG
* MSR_MC6_DEMOTION_POLICY_CONFIG
*/
int has_slv_msrs(unsigned int family, unsigned int model)
{
if (!genuine_intel)
return 0;
switch (model) {
case INTEL_FAM6_ATOM_SILVERMONT1:
case INTEL_FAM6_ATOM_MERRIFIELD:
case INTEL_FAM6_ATOM_MOOREFIELD:
return 1;
}
return 0;
}
/*
* HSW adds support for additional MSRs:
*