tools/power turbostat: Add Cannon Lake support

All MSRs related to turbostat are same as Kabylake.
Even though SDM claims that core C3 residency can be read from MSR 0x662,
the read on this MSR fails on CNL platform. Hence disabled C3 MSR read
and display.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>

tools/power/x86/turbostat/turbostat.c

@@ -62,6 +62,7 @@ unsigned int dump_only;
 unsigned int do_snb_cstates;
 unsigned int do_knl_cstates;
 unsigned int do_slm_cstates;
+unsigned int do_cnl_cstates;
 unsigned int use_c1_residency_msr;
 unsigned int has_aperf;
 unsigned int has_epb;
@@ -604,7 +605,7 @@ void print_header(char *delim)
 
 	if (DO_BIC(BIC_CPU_c1))
 		outp += sprintf(outp, "%sCPU%%c1", (printed++ ? delim : ""));
-	if (DO_BIC(BIC_CPU_c3) && !do_slm_cstates && !do_knl_cstates)
+	if (DO_BIC(BIC_CPU_c3) && !do_slm_cstates && !do_knl_cstates && !do_cnl_cstates)
 		outp += sprintf(outp, "%sCPU%%c3", (printed++ ? delim : ""));
 	if (DO_BIC(BIC_CPU_c6))
 		outp += sprintf(outp, "%sCPU%%c6", (printed++ ? delim : ""));
@@ -921,7 +922,7 @@ int format_counters(struct thread_data *t, struct core_data *c,
 	if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
 		goto done;
 
-	if (DO_BIC(BIC_CPU_c3) && !do_slm_cstates && !do_knl_cstates)
+	if (DO_BIC(BIC_CPU_c3) && !do_slm_cstates && !do_knl_cstates && !do_cnl_cstates)
 		outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), 100.0 * c->c3/tsc);
 	if (DO_BIC(BIC_CPU_c6))
 		outp += sprintf(outp, "%s%.2f", (printed++ ? delim : ""), 100.0 * c->c6/tsc);
@@ -1676,7 +1677,7 @@ retry:
 	if (!(t->flags & CPU_IS_FIRST_THREAD_IN_CORE))
 		goto done;
 
-	if (DO_BIC(BIC_CPU_c3) && !do_slm_cstates && !do_knl_cstates) {
+	if (DO_BIC(BIC_CPU_c3) && !do_slm_cstates && !do_knl_cstates && !do_cnl_cstates) {
 		if (get_msr(cpu, MSR_CORE_C3_RESIDENCY, &c->c3))
 			return -6;
 	}
@@ -2943,6 +2944,7 @@ int probe_nhm_msrs(unsigned int family, unsigned int model)
 	case INTEL_FAM6_SKYLAKE_DESKTOP:	/* SKL */
 	case INTEL_FAM6_KABYLAKE_MOBILE:	/* KBL */
 	case INTEL_FAM6_KABYLAKE_DESKTOP:	/* KBL */
+	case INTEL_FAM6_CANNONLAKE_MOBILE:	/* CNL */
 		pkg_cstate_limits = hsw_pkg_cstate_limits;
 		has_misc_feature_control = 1;
 		break;
@@ -3148,6 +3150,7 @@ int has_config_tdp(unsigned int family, unsigned int model)
 	case INTEL_FAM6_SKYLAKE_DESKTOP:	/* SKL */
 	case INTEL_FAM6_KABYLAKE_MOBILE:	/* KBL */
 	case INTEL_FAM6_KABYLAKE_DESKTOP:	/* KBL */
+	case INTEL_FAM6_CANNONLAKE_MOBILE:	/* CNL */
 	case INTEL_FAM6_SKYLAKE_X:	/* SKX */
 
 	case INTEL_FAM6_XEON_PHI_KNL:	/* Knights Landing */
@@ -3602,6 +3605,7 @@ void rapl_probe(unsigned int family, unsigned int model)
 	case INTEL_FAM6_SKYLAKE_DESKTOP:	/* SKL */
 	case INTEL_FAM6_KABYLAKE_MOBILE:	/* KBL */
 	case INTEL_FAM6_KABYLAKE_DESKTOP:	/* KBL */
+	case INTEL_FAM6_CANNONLAKE_MOBILE:	/* CNL */
 		do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_DRAM | RAPL_DRAM_PERF_STATUS | RAPL_PKG_PERF_STATUS | RAPL_GFX | RAPL_PKG_POWER_INFO;
 		BIC_PRESENT(BIC_PKG__);
 		BIC_PRESENT(BIC_RAM__);
@@ -3937,6 +3941,7 @@ int has_snb_msrs(unsigned int family, unsigned int model)
 	case INTEL_FAM6_SKYLAKE_DESKTOP:	/* SKL */
 	case INTEL_FAM6_KABYLAKE_MOBILE:	/* KBL */
 	case INTEL_FAM6_KABYLAKE_DESKTOP:	/* KBL */
+	case INTEL_FAM6_CANNONLAKE_MOBILE:	/* CNL */
 	case INTEL_FAM6_SKYLAKE_X:	/* SKX */
 	case INTEL_FAM6_ATOM_GOLDMONT:	/* BXT */
 	case INTEL_FAM6_ATOM_GEMINI_LAKE:
@@ -3970,6 +3975,7 @@ int has_hsw_msrs(unsigned int family, unsigned int model)
 	case INTEL_FAM6_SKYLAKE_DESKTOP:	/* SKL */
 	case INTEL_FAM6_KABYLAKE_MOBILE:	/* KBL */
 	case INTEL_FAM6_KABYLAKE_DESKTOP:	/* KBL */
+	case INTEL_FAM6_CANNONLAKE_MOBILE:	/* CNL */
 	case INTEL_FAM6_ATOM_GOLDMONT:	/* BXT */
 	case INTEL_FAM6_ATOM_GEMINI_LAKE:
 		return 1;
@@ -3995,6 +4001,7 @@ int has_skl_msrs(unsigned int family, unsigned int model)
 	case INTEL_FAM6_SKYLAKE_DESKTOP:	/* SKL */
 	case INTEL_FAM6_KABYLAKE_MOBILE:	/* KBL */
 	case INTEL_FAM6_KABYLAKE_DESKTOP:	/* KBL */
+	case INTEL_FAM6_CANNONLAKE_MOBILE:	/* CNL */
 		return 1;
 	}
 	return 0;
@@ -4024,6 +4031,19 @@ int is_knl(unsigned int family, unsigned int model)
 	return 0;
 }
 
+int is_cnl(unsigned int family, unsigned int model)
+{
+	if (!genuine_intel)
+		return 0;
+
+	switch (model) {
+	case INTEL_FAM6_CANNONLAKE_MOBILE: /* CNL */
+		return 1;
+	}
+
+	return 0;
+}
+
 unsigned int get_aperf_mperf_multiplier(unsigned int family, unsigned int model)
 {
 	if (is_knl(family, model))
@@ -4461,6 +4481,7 @@ void process_cpuid()
 	}
 	do_slm_cstates = is_slm(family, model);
 	do_knl_cstates  = is_knl(family, model);
+	do_cnl_cstates = is_cnl(family, model);
 
 	if (!quiet)
 		decode_misc_pwr_mgmt_msr();