intel_rapl: remove hardcoded register index

enum rapl_domain_reg_id is defined for the RAPL registers for each RAPL
domain, thus use it whenever possible.
Reviewed-by: Pandruvada, Srinivas <srinivas.pandruvada@intel.com>
Tested-by: Pandruvada, Srinivas <srinivas.pandruvada@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

drivers/powercap/intel_rapl.c

@@ -642,11 +642,11 @@ static void rapl_init_domains(struct rapl_package *rp)
 		case BIT(RAPL_DOMAIN_PACKAGE):
 			rd->name = rapl_domain_names[RAPL_DOMAIN_PACKAGE];
 			rd->id = RAPL_DOMAIN_PACKAGE;
-			rd->regs[0] = MSR_PKG_POWER_LIMIT;
-			rd->regs[1] = MSR_PKG_ENERGY_STATUS;
-			rd->regs[2] = MSR_PKG_PERF_STATUS;
-			rd->regs[3] = 0;
-			rd->regs[4] = MSR_PKG_POWER_INFO;
+			rd->regs[RAPL_DOMAIN_REG_LIMIT] = MSR_PKG_POWER_LIMIT;
+			rd->regs[RAPL_DOMAIN_REG_STATUS] = MSR_PKG_ENERGY_STATUS;
+			rd->regs[RAPL_DOMAIN_REG_PERF] = MSR_PKG_PERF_STATUS;
+			rd->regs[RAPL_DOMAIN_REG_POLICY] = 0;
+			rd->regs[RAPL_DOMAIN_REG_INFO] = MSR_PKG_POWER_INFO;
 			rd->rpl[0].prim_id = PL1_ENABLE;
 			rd->rpl[0].name = pl1_name;
 			rd->rpl[1].prim_id = PL2_ENABLE;
@@ -655,33 +655,33 @@ static void rapl_init_domains(struct rapl_package *rp)
 		case BIT(RAPL_DOMAIN_PP0):
 			rd->name = rapl_domain_names[RAPL_DOMAIN_PP0];
 			rd->id = RAPL_DOMAIN_PP0;
-			rd->regs[0] = MSR_PP0_POWER_LIMIT;
-			rd->regs[1] = MSR_PP0_ENERGY_STATUS;
-			rd->regs[2] = 0;
-			rd->regs[3] = MSR_PP0_POLICY;
-			rd->regs[4] = 0;
+			rd->regs[RAPL_DOMAIN_REG_LIMIT] = MSR_PP0_POWER_LIMIT;
+			rd->regs[RAPL_DOMAIN_REG_STATUS] = MSR_PP0_ENERGY_STATUS;
+			rd->regs[RAPL_DOMAIN_REG_PERF] = 0;
+			rd->regs[RAPL_DOMAIN_REG_POLICY] = MSR_PP0_POLICY;
+			rd->regs[RAPL_DOMAIN_REG_INFO] = 0;
 			rd->rpl[0].prim_id = PL1_ENABLE;
 			rd->rpl[0].name = pl1_name;
 			break;
 		case BIT(RAPL_DOMAIN_PP1):
 			rd->name = rapl_domain_names[RAPL_DOMAIN_PP1];
 			rd->id = RAPL_DOMAIN_PP1;
-			rd->regs[0] = MSR_PP1_POWER_LIMIT;
-			rd->regs[1] = MSR_PP1_ENERGY_STATUS;
-			rd->regs[2] = 0;
-			rd->regs[3] = MSR_PP1_POLICY;
-			rd->regs[4] = 0;
+			rd->regs[RAPL_DOMAIN_REG_LIMIT] = MSR_PP1_POWER_LIMIT;
+			rd->regs[RAPL_DOMAIN_REG_STATUS] = MSR_PP1_ENERGY_STATUS;
+			rd->regs[RAPL_DOMAIN_REG_PERF] = 0;
+			rd->regs[RAPL_DOMAIN_REG_POLICY] = MSR_PP1_POLICY;
+			rd->regs[RAPL_DOMAIN_REG_INFO] = 0;
 			rd->rpl[0].prim_id = PL1_ENABLE;
 			rd->rpl[0].name = pl1_name;
 			break;
 		case BIT(RAPL_DOMAIN_DRAM):
 			rd->name = rapl_domain_names[RAPL_DOMAIN_DRAM];
 			rd->id = RAPL_DOMAIN_DRAM;
-			rd->regs[0] = MSR_DRAM_POWER_LIMIT;
-			rd->regs[1] = MSR_DRAM_ENERGY_STATUS;
-			rd->regs[2] = MSR_DRAM_PERF_STATUS;
-			rd->regs[3] = 0;
-			rd->regs[4] = MSR_DRAM_POWER_INFO;
+			rd->regs[RAPL_DOMAIN_REG_LIMIT] = MSR_DRAM_POWER_LIMIT;
+			rd->regs[RAPL_DOMAIN_REG_STATUS] = MSR_DRAM_ENERGY_STATUS;
+			rd->regs[RAPL_DOMAIN_REG_PERF] = MSR_DRAM_PERF_STATUS;
+			rd->regs[RAPL_DOMAIN_REG_POLICY] = 0;
+			rd->regs[RAPL_DOMAIN_REG_INFO] = MSR_DRAM_POWER_INFO;
 			rd->rpl[0].prim_id = PL1_ENABLE;
 			rd->rpl[0].name = pl1_name;
 			rd->domain_energy_unit =
@@ -1282,8 +1282,8 @@ static int __init rapl_register_psys(void)
 
 	rd->name = rapl_domain_names[RAPL_DOMAIN_PLATFORM];
 	rd->id = RAPL_DOMAIN_PLATFORM;
-	rd->regs[0] = MSR_PLATFORM_POWER_LIMIT;
-	rd->regs[1] = MSR_PLATFORM_ENERGY_STATUS;
+	rd->regs[RAPL_DOMAIN_REG_LIMIT] = MSR_PLATFORM_POWER_LIMIT;
+	rd->regs[RAPL_DOMAIN_REG_STATUS] = MSR_PLATFORM_ENERGY_STATUS;
 	rd->rpl[0].prim_id = PL1_ENABLE;
 	rd->rpl[0].name = pl1_name;
 	rd->rpl[1].prim_id = PL2_ENABLE;