tools/power/turbostat: Simplify the logic for RAPL enumeration

The support for each RAPL domains, as well as the support for the perf
status of each RAPL domains, can be detected by checking the
availabilities of the corresponding RAPL MSRs.

Change the code accordingly and remove the hardcoded logic for each
model.

Note that this also fixes the INTEL_FAM6_ATOM_TREMONT model, which has
RAPL_PKG_PERF_STATUS and MSR_DRAM_PERF_STATUS but doesn't have BIC_PKG__
and BIC_RAM__ set.
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Reviewed-by: Len Brown <len.brown@intel.com>

tools/power/x86/turbostat/turbostat.c

@@ -4809,62 +4809,20 @@ void rapl_probe_intel(unsigned int family, unsigned int model)
 	case INTEL_FAM6_BROADWELL:	/* BDW */
 	case INTEL_FAM6_BROADWELL_G:	/* BDW */
 		do_rapl = RAPL_PKG | RAPL_CORE_ALL | RAPL_GFX | RAPL_PKG_POWER_INFO;
-		if (rapl_joules) {
-			BIC_PRESENT(BIC_Pkg_J);
-			BIC_PRESENT(BIC_Cor_J);
-			BIC_PRESENT(BIC_GFX_J);
-		} else {
-			BIC_PRESENT(BIC_PkgWatt);
-			BIC_PRESENT(BIC_CorWatt);
-			BIC_PRESENT(BIC_GFXWatt);
-		}
 		break;
 	case INTEL_FAM6_ATOM_GOLDMONT:	/* BXT */
 	case INTEL_FAM6_ATOM_GOLDMONT_PLUS:
 		do_rapl = RAPL_PKG | RAPL_PKG_POWER_INFO;
-		if (rapl_joules)
-			BIC_PRESENT(BIC_Pkg_J);
-		else
-			BIC_PRESENT(BIC_PkgWatt);
 		break;
 	case INTEL_FAM6_ATOM_TREMONT:	/* EHL */
 		do_rapl = RAPL_PKG_ALL | RAPL_CORE_ALL | RAPL_DRAM | RAPL_DRAM_PERF_STATUS | RAPL_GFX;
-		if (rapl_joules) {
-			BIC_PRESENT(BIC_Pkg_J);
-			BIC_PRESENT(BIC_Cor_J);
-			BIC_PRESENT(BIC_RAM_J);
-			BIC_PRESENT(BIC_GFX_J);
-		} else {
-			BIC_PRESENT(BIC_PkgWatt);
-			BIC_PRESENT(BIC_CorWatt);
-			BIC_PRESENT(BIC_RAMWatt);
-			BIC_PRESENT(BIC_GFXWatt);
-		}
 		break;
 	case INTEL_FAM6_ATOM_TREMONT_D:	/* JVL */
 		do_rapl = RAPL_PKG_ALL;
-		BIC_PRESENT(BIC_PKG__);
-		if (rapl_joules)
-			BIC_PRESENT(BIC_Pkg_J);
-		else
-			BIC_PRESENT(BIC_PkgWatt);
 		break;
 	case INTEL_FAM6_SKYLAKE_L:	/* SKL */
 	case INTEL_FAM6_CANNONLAKE_L:	/* CNL */
 		do_rapl = RAPL_PKG_ALL | RAPL_CORE_ALL | RAPL_DRAM | RAPL_DRAM_PERF_STATUS | RAPL_GFX;
-		BIC_PRESENT(BIC_PKG__);
-		BIC_PRESENT(BIC_RAM__);
-		if (rapl_joules) {
-			BIC_PRESENT(BIC_Pkg_J);
-			BIC_PRESENT(BIC_Cor_J);
-			BIC_PRESENT(BIC_RAM_J);
-			BIC_PRESENT(BIC_GFX_J);
-		} else {
-			BIC_PRESENT(BIC_PkgWatt);
-			BIC_PRESENT(BIC_CorWatt);
-			BIC_PRESENT(BIC_RAMWatt);
-			BIC_PRESENT(BIC_GFXWatt);
-		}
 		break;
 	case INTEL_FAM6_HASWELL_X:	/* HSX */
 	case INTEL_FAM6_BROADWELL_X:	/* BDX */
@@ -4873,60 +4831,47 @@ void rapl_probe_intel(unsigned int family, unsigned int model)
 	case INTEL_FAM6_SAPPHIRERAPIDS_X:	/* SPR */
 	case INTEL_FAM6_XEON_PHI_KNL:	/* KNL */
 		do_rapl = RAPL_PKG_ALL | RAPL_DRAM_ALL;
-		BIC_PRESENT(BIC_PKG__);
-		BIC_PRESENT(BIC_RAM__);
-		if (rapl_joules) {
-			BIC_PRESENT(BIC_Pkg_J);
-			BIC_PRESENT(BIC_RAM_J);
-		} else {
-			BIC_PRESENT(BIC_PkgWatt);
-			BIC_PRESENT(BIC_RAMWatt);
-		}
 		break;
 	case INTEL_FAM6_SANDYBRIDGE_X:
 	case INTEL_FAM6_IVYBRIDGE_X:
 		do_rapl = RAPL_PKG_ALL | RAPL_CORE_ALL | RAPL_DRAM_ALL;
-		BIC_PRESENT(BIC_PKG__);
-		BIC_PRESENT(BIC_RAM__);
-		if (rapl_joules) {
-			BIC_PRESENT(BIC_Pkg_J);
-			BIC_PRESENT(BIC_Cor_J);
-			BIC_PRESENT(BIC_RAM_J);
-		} else {
-			BIC_PRESENT(BIC_PkgWatt);
-			BIC_PRESENT(BIC_CorWatt);
-			BIC_PRESENT(BIC_RAMWatt);
-		}
 		break;
 	case INTEL_FAM6_ATOM_SILVERMONT:	/* BYT */
 	case INTEL_FAM6_ATOM_SILVERMONT_D:	/* AVN */
 		do_rapl = RAPL_PKG | RAPL_CORE;
-		if (rapl_joules) {
-			BIC_PRESENT(BIC_Pkg_J);
-			BIC_PRESENT(BIC_Cor_J);
-		} else {
-			BIC_PRESENT(BIC_PkgWatt);
-			BIC_PRESENT(BIC_CorWatt);
-		}
 		break;
 	case INTEL_FAM6_ATOM_GOLDMONT_D:	/* DNV */
 		do_rapl = RAPL_PKG_ALL | RAPL_DRAM_ALL | RAPL_CORE_ENERGY_STATUS;
-		BIC_PRESENT(BIC_PKG__);
-		BIC_PRESENT(BIC_RAM__);
-		if (rapl_joules) {
+		break;
+	default:
+		return;
+	}
+
+	if (rapl_joules) {
+		if (do_rapl & RAPL_PKG_ENERGY_STATUS)
 			BIC_PRESENT(BIC_Pkg_J);
+		if (do_rapl & RAPL_CORE_ENERGY_STATUS)
 			BIC_PRESENT(BIC_Cor_J);
+		if (do_rapl & RAPL_DRAM_ENERGY_STATUS)
 			BIC_PRESENT(BIC_RAM_J);
-		} else {
+		if (do_rapl & RAPL_GFX_ENERGY_STATUS)
+			BIC_PRESENT(BIC_GFX_J);
+	} else {
+		if (do_rapl & RAPL_PKG_ENERGY_STATUS)
 			BIC_PRESENT(BIC_PkgWatt);
+		if (do_rapl & RAPL_CORE_ENERGY_STATUS)
 			BIC_PRESENT(BIC_CorWatt);
+		if (do_rapl & RAPL_DRAM_ENERGY_STATUS)
 			BIC_PRESENT(BIC_RAMWatt);
-		}
-		break;
-	default:
-		return;
+		if (do_rapl & RAPL_GFX_ENERGY_STATUS)
+			BIC_PRESENT(BIC_GFXWatt);
 	}
 
+	if (do_rapl & RAPL_PKG_PERF_STATUS)
+		BIC_PRESENT(BIC_PKG__);
+	if (do_rapl & RAPL_DRAM_PERF_STATUS)
+		BIC_PRESENT(BIC_RAM__);
+
 	/* units on package 0, verify later other packages match */
 	if (get_msr(base_cpu, MSR_RAPL_POWER_UNIT, &msr))
 		return;