Intel: intel_rapl: use reg instead of msr

mainline inclusion
from mainline-v5.3-rc1
commit f7c4e0c8
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I47H3V
CVE: NA

--------------------------------

commit f7c4e0c8 upstream.

To support both MSR and MMIO Interface, use 'reg' to discribe RAPL
registers instead of 'msr'.
Reviewed-by: NPandruvada, Srinivas <srinivas.pandruvada@intel.com>
Tested-by: NPandruvada, Srinivas <srinivas.pandruvada@intel.com>
Signed-off-by: NZhang Rui <rui.zhang@intel.com>
Signed-off-by: NRafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: NYouquan Song <youquan.song@intel.com>
Signed-off-by: NJackie Liu <liuyun01@kylinos.cn>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>
Reviewed-by: NHanjun Guo <guohanjun@huawei.com>
Reviewed-by: NXie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: NYang Yingliang <yangyingliang@huawei.com>

drivers/powercap/intel_rapl.c

@@ -95,13 +95,13 @@ enum rapl_domain_type {
 	RAPL_DOMAIN_MAX,
 };
 
-enum rapl_domain_msr_id {
-	RAPL_DOMAIN_MSR_LIMIT,
-	RAPL_DOMAIN_MSR_STATUS,
-	RAPL_DOMAIN_MSR_PERF,
-	RAPL_DOMAIN_MSR_POLICY,
-	RAPL_DOMAIN_MSR_INFO,
-	RAPL_DOMAIN_MSR_MAX,
+enum rapl_domain_reg_id {
+	RAPL_DOMAIN_REG_LIMIT,
+	RAPL_DOMAIN_REG_STATUS,
+	RAPL_DOMAIN_REG_PERF,
+	RAPL_DOMAIN_REG_POLICY,
+	RAPL_DOMAIN_REG_INFO,
+	RAPL_DOMAIN_REG_MAX,
 };
 
 /* per domain data, some are optional */
@@ -166,7 +166,7 @@ struct rapl_package;
 struct rapl_domain {
 	const char *name;
 	enum rapl_domain_type id;
-	int msrs[RAPL_DOMAIN_MSR_MAX];
+	int regs[RAPL_DOMAIN_REG_MAX];
 	struct powercap_zone power_zone;
 	struct rapl_domain_data rdd;
 	struct rapl_power_limit rpl[NR_POWER_LIMITS];
@@ -228,7 +228,7 @@ struct rapl_primitive_info {
 	const char *name;
 	u64 mask;
 	int shift;
-	enum rapl_domain_msr_id id;
+	enum rapl_domain_reg_id id;
 	enum unit_type unit;
 	u32 flag;
 };
@@ -654,11 +654,11 @@ 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->msrs[0] = MSR_PKG_POWER_LIMIT;
-			rd->msrs[1] = MSR_PKG_ENERGY_STATUS;
-			rd->msrs[2] = MSR_PKG_PERF_STATUS;
-			rd->msrs[3] = 0;
-			rd->msrs[4] = MSR_PKG_POWER_INFO;
+			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->rpl[0].prim_id = PL1_ENABLE;
 			rd->rpl[0].name = pl1_name;
 			rd->rpl[1].prim_id = PL2_ENABLE;
@@ -667,33 +667,33 @@ 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->msrs[0] = MSR_PP0_POWER_LIMIT;
-			rd->msrs[1] = MSR_PP0_ENERGY_STATUS;
-			rd->msrs[2] = 0;
-			rd->msrs[3] = MSR_PP0_POLICY;
-			rd->msrs[4] = 0;
+			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->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->msrs[0] = MSR_PP1_POWER_LIMIT;
-			rd->msrs[1] = MSR_PP1_ENERGY_STATUS;
-			rd->msrs[2] = 0;
-			rd->msrs[3] = MSR_PP1_POLICY;
-			rd->msrs[4] = 0;
+			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->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->msrs[0] = MSR_DRAM_POWER_LIMIT;
-			rd->msrs[1] = MSR_DRAM_ENERGY_STATUS;
-			rd->msrs[2] = MSR_DRAM_PERF_STATUS;
-			rd->msrs[3] = 0;
-			rd->msrs[4] = MSR_DRAM_POWER_INFO;
+			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->rpl[0].prim_id = PL1_ENABLE;
 			rd->rpl[0].name = pl1_name;
 			rd->domain_energy_unit =
@@ -748,37 +748,37 @@ static u64 rapl_unit_xlate(struct rapl_domain *rd, enum unit_type type,
 static struct rapl_primitive_info rpi[] = {
 	/* name, mask, shift, msr index, unit divisor */
 	PRIMITIVE_INFO_INIT(ENERGY_COUNTER, ENERGY_STATUS_MASK, 0,
-				RAPL_DOMAIN_MSR_STATUS, ENERGY_UNIT, 0),
+				RAPL_DOMAIN_REG_STATUS, ENERGY_UNIT, 0),
 	PRIMITIVE_INFO_INIT(POWER_LIMIT1, POWER_LIMIT1_MASK, 0,
-				RAPL_DOMAIN_MSR_LIMIT, POWER_UNIT, 0),
+				RAPL_DOMAIN_REG_LIMIT, POWER_UNIT, 0),
 	PRIMITIVE_INFO_INIT(POWER_LIMIT2, POWER_LIMIT2_MASK, 32,
-				RAPL_DOMAIN_MSR_LIMIT, POWER_UNIT, 0),
+				RAPL_DOMAIN_REG_LIMIT, POWER_UNIT, 0),
 	PRIMITIVE_INFO_INIT(FW_LOCK, POWER_PP_LOCK, 31,
-				RAPL_DOMAIN_MSR_LIMIT, ARBITRARY_UNIT, 0),
+				RAPL_DOMAIN_REG_LIMIT, ARBITRARY_UNIT, 0),
 	PRIMITIVE_INFO_INIT(PL1_ENABLE, POWER_LIMIT1_ENABLE, 15,
-				RAPL_DOMAIN_MSR_LIMIT, ARBITRARY_UNIT, 0),
+				RAPL_DOMAIN_REG_LIMIT, ARBITRARY_UNIT, 0),
 	PRIMITIVE_INFO_INIT(PL1_CLAMP, POWER_LIMIT1_CLAMP, 16,
-				RAPL_DOMAIN_MSR_LIMIT, ARBITRARY_UNIT, 0),
+				RAPL_DOMAIN_REG_LIMIT, ARBITRARY_UNIT, 0),
 	PRIMITIVE_INFO_INIT(PL2_ENABLE, POWER_LIMIT2_ENABLE, 47,
-				RAPL_DOMAIN_MSR_LIMIT, ARBITRARY_UNIT, 0),
+				RAPL_DOMAIN_REG_LIMIT, ARBITRARY_UNIT, 0),
 	PRIMITIVE_INFO_INIT(PL2_CLAMP, POWER_LIMIT2_CLAMP, 48,
-				RAPL_DOMAIN_MSR_LIMIT, ARBITRARY_UNIT, 0),
+				RAPL_DOMAIN_REG_LIMIT, ARBITRARY_UNIT, 0),
 	PRIMITIVE_INFO_INIT(TIME_WINDOW1, TIME_WINDOW1_MASK, 17,
-				RAPL_DOMAIN_MSR_LIMIT, TIME_UNIT, 0),
+				RAPL_DOMAIN_REG_LIMIT, TIME_UNIT, 0),
 	PRIMITIVE_INFO_INIT(TIME_WINDOW2, TIME_WINDOW2_MASK, 49,
-				RAPL_DOMAIN_MSR_LIMIT, TIME_UNIT, 0),
+				RAPL_DOMAIN_REG_LIMIT, TIME_UNIT, 0),
 	PRIMITIVE_INFO_INIT(THERMAL_SPEC_POWER, POWER_INFO_THERMAL_SPEC_MASK,
-				0, RAPL_DOMAIN_MSR_INFO, POWER_UNIT, 0),
+				0, RAPL_DOMAIN_REG_INFO, POWER_UNIT, 0),
 	PRIMITIVE_INFO_INIT(MAX_POWER, POWER_INFO_MAX_MASK, 32,
-				RAPL_DOMAIN_MSR_INFO, POWER_UNIT, 0),
+				RAPL_DOMAIN_REG_INFO, POWER_UNIT, 0),
 	PRIMITIVE_INFO_INIT(MIN_POWER, POWER_INFO_MIN_MASK, 16,
-				RAPL_DOMAIN_MSR_INFO, POWER_UNIT, 0),
+				RAPL_DOMAIN_REG_INFO, POWER_UNIT, 0),
 	PRIMITIVE_INFO_INIT(MAX_TIME_WINDOW, POWER_INFO_MAX_TIME_WIN_MASK, 48,
-				RAPL_DOMAIN_MSR_INFO, TIME_UNIT, 0),
+				RAPL_DOMAIN_REG_INFO, TIME_UNIT, 0),
 	PRIMITIVE_INFO_INIT(THROTTLED_TIME, PERF_STATUS_THROTTLE_TIME_MASK, 0,
-				RAPL_DOMAIN_MSR_PERF, TIME_UNIT, 0),
+				RAPL_DOMAIN_REG_PERF, TIME_UNIT, 0),
 	PRIMITIVE_INFO_INIT(PRIORITY_LEVEL, PP_POLICY_MASK, 0,
-				RAPL_DOMAIN_MSR_POLICY, ARBITRARY_UNIT, 0),
+				RAPL_DOMAIN_REG_POLICY, ARBITRARY_UNIT, 0),
 	/* non-hardware */
 	PRIMITIVE_INFO_INIT(AVERAGE_POWER, 0, 0, 0, POWER_UNIT,
 				RAPL_PRIMITIVE_DERIVED),
@@ -810,7 +810,7 @@ static int rapl_read_data_raw(struct rapl_domain *rd,
 	if (!rp->name || rp->flag & RAPL_PRIMITIVE_DUMMY)
 		return -EINVAL;
 
-	msr = rd->msrs[rp->id];
+	msr = rd->regs[rp->id];
 	if (!msr)
 		return -EINVAL;
 
@@ -886,7 +886,7 @@ static int rapl_write_data_raw(struct rapl_domain *rd,
 
 	memset(&ma, 0, sizeof(ma));
 
-	ma.msr_no = rd->msrs[rp->id];
+	ma.msr_no = rd->regs[rp->id];
 	ma.clear_mask = rp->mask;
 	ma.set_mask = bits;
 
@@ -1299,8 +1299,8 @@ static int __init rapl_register_psys(void)
 
 	rd->name = rapl_domain_names[RAPL_DOMAIN_PLATFORM];
 	rd->id = RAPL_DOMAIN_PLATFORM;
-	rd->msrs[0] = MSR_PLATFORM_POWER_LIMIT;
-	rd->msrs[1] = MSR_PLATFORM_ENERGY_STATUS;
+	rd->regs[0] = MSR_PLATFORM_POWER_LIMIT;
+	rd->regs[1] = MSR_PLATFORM_ENERGY_STATUS;
 	rd->rpl[0].prim_id = PL1_ENABLE;
 	rd->rpl[0].name = pl1_name;
 	rd->rpl[1].prim_id = PL2_ENABLE;