diff mbox series

[v2,06/15] powercap/intel_rapl: Use index to initialize primitive information

Message ID 20230419024419.324436-7-rui.zhang@intel.com
State Accepted
Commit 11edbe5c66d624e2e1eec8929d3668d76a574c3b
Headers show
Series powercap/intel_rapl: Introduce RAPL TPMI support | expand

Commit Message

Zhang, Rui April 19, 2023, 2:44 a.m. UTC 
Currently, the RAPL primitive information array is required to be
initialized in the order of enum rapl_primitives.
This can break easily, especially when different RAPL Interfaces may
support different sets of primitives.

Convert the code to initialize the primitive information using array
index explicitly.

No functional change.

Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Tested-by: Wang Wendy <wendy.wang@intel.com>
---
 drivers/powercap/intel_rapl_common.c | 54 ++++++++++++++--------------
 1 file changed, 26 insertions(+), 28 deletions(-)
diff mbox series

Patch

diff --git a/drivers/powercap/intel_rapl_common.c b/drivers/powercap/intel_rapl_common.c
index 3625d4466cb3..97d9e1e628e2 100644
--- a/drivers/powercap/intel_rapl_common.c
+++ b/drivers/powercap/intel_rapl_common.c
@@ -629,61 +629,59 @@  static u64 rapl_unit_xlate(struct rapl_domain *rd, enum unit_type type,
 	return div64_u64(value, scale);
 }
 
-/* in the order of enum rapl_primitives */
-static struct rapl_primitive_info rpi_default[] = {
+static struct rapl_primitive_info rpi_default[NR_RAPL_PRIMITIVES] = {
 	/* name, mask, shift, msr index, unit divisor */
-	PRIMITIVE_INFO_INIT(ENERGY_COUNTER, ENERGY_STATUS_MASK, 0,
+	[ENERGY_COUNTER] = PRIMITIVE_INFO_INIT(ENERGY_COUNTER, ENERGY_STATUS_MASK, 0,
 			    RAPL_DOMAIN_REG_STATUS, ENERGY_UNIT, 0),
-	PRIMITIVE_INFO_INIT(POWER_LIMIT1, POWER_LIMIT1_MASK, 0,
+	[POWER_LIMIT1] = PRIMITIVE_INFO_INIT(POWER_LIMIT1, POWER_LIMIT1_MASK, 0,
 			    RAPL_DOMAIN_REG_LIMIT, POWER_UNIT, 0),
-	PRIMITIVE_INFO_INIT(POWER_LIMIT2, POWER_LIMIT2_MASK, 32,
+	[POWER_LIMIT2] = PRIMITIVE_INFO_INIT(POWER_LIMIT2, POWER_LIMIT2_MASK, 32,
 			    RAPL_DOMAIN_REG_LIMIT, POWER_UNIT, 0),
-	PRIMITIVE_INFO_INIT(POWER_LIMIT4, POWER_LIMIT4_MASK, 0,
+	[POWER_LIMIT4] = PRIMITIVE_INFO_INIT(POWER_LIMIT4, POWER_LIMIT4_MASK, 0,
 				RAPL_DOMAIN_REG_PL4, POWER_UNIT, 0),
-	PRIMITIVE_INFO_INIT(FW_LOCK, POWER_LOW_LOCK, 31,
+	[FW_LOCK] = PRIMITIVE_INFO_INIT(FW_LOCK, POWER_LOW_LOCK, 31,
 			    RAPL_DOMAIN_REG_LIMIT, ARBITRARY_UNIT, 0),
-	PRIMITIVE_INFO_INIT(PL1_ENABLE, POWER_LIMIT1_ENABLE, 15,
+	[PL1_ENABLE] = PRIMITIVE_INFO_INIT(PL1_ENABLE, POWER_LIMIT1_ENABLE, 15,
 			    RAPL_DOMAIN_REG_LIMIT, ARBITRARY_UNIT, 0),
-	PRIMITIVE_INFO_INIT(PL1_CLAMP, POWER_LIMIT1_CLAMP, 16,
+	[PL1_CLAMP] = PRIMITIVE_INFO_INIT(PL1_CLAMP, POWER_LIMIT1_CLAMP, 16,
 			    RAPL_DOMAIN_REG_LIMIT, ARBITRARY_UNIT, 0),
-	PRIMITIVE_INFO_INIT(PL2_ENABLE, POWER_LIMIT2_ENABLE, 47,
+	[PL2_ENABLE] = PRIMITIVE_INFO_INIT(PL2_ENABLE, POWER_LIMIT2_ENABLE, 47,
 			    RAPL_DOMAIN_REG_LIMIT, ARBITRARY_UNIT, 0),
-	PRIMITIVE_INFO_INIT(PL2_CLAMP, POWER_LIMIT2_CLAMP, 48,
+	[PL2_CLAMP] = PRIMITIVE_INFO_INIT(PL2_CLAMP, POWER_LIMIT2_CLAMP, 48,
 			    RAPL_DOMAIN_REG_LIMIT, ARBITRARY_UNIT, 0),
-	PRIMITIVE_INFO_INIT(PL4_ENABLE, POWER_LIMIT4_MASK, 0,
+	[PL4_ENABLE] = PRIMITIVE_INFO_INIT(PL4_ENABLE, POWER_LIMIT4_MASK, 0,
 				RAPL_DOMAIN_REG_PL4, ARBITRARY_UNIT, 0),
-	PRIMITIVE_INFO_INIT(TIME_WINDOW1, TIME_WINDOW1_MASK, 17,
+	[TIME_WINDOW1] = PRIMITIVE_INFO_INIT(TIME_WINDOW1, TIME_WINDOW1_MASK, 17,
 			    RAPL_DOMAIN_REG_LIMIT, TIME_UNIT, 0),
-	PRIMITIVE_INFO_INIT(TIME_WINDOW2, TIME_WINDOW2_MASK, 49,
+	[TIME_WINDOW2] = PRIMITIVE_INFO_INIT(TIME_WINDOW2, TIME_WINDOW2_MASK, 49,
 			    RAPL_DOMAIN_REG_LIMIT, TIME_UNIT, 0),
-	PRIMITIVE_INFO_INIT(THERMAL_SPEC_POWER, POWER_INFO_THERMAL_SPEC_MASK,
+	[THERMAL_SPEC_POWER] = PRIMITIVE_INFO_INIT(THERMAL_SPEC_POWER, POWER_INFO_THERMAL_SPEC_MASK,
 			    0, RAPL_DOMAIN_REG_INFO, POWER_UNIT, 0),
-	PRIMITIVE_INFO_INIT(MAX_POWER, POWER_INFO_MAX_MASK, 32,
+	[MAX_POWER] = PRIMITIVE_INFO_INIT(MAX_POWER, POWER_INFO_MAX_MASK, 32,
 			    RAPL_DOMAIN_REG_INFO, POWER_UNIT, 0),
-	PRIMITIVE_INFO_INIT(MIN_POWER, POWER_INFO_MIN_MASK, 16,
+	[MIN_POWER] = PRIMITIVE_INFO_INIT(MIN_POWER, POWER_INFO_MIN_MASK, 16,
 			    RAPL_DOMAIN_REG_INFO, POWER_UNIT, 0),
-	PRIMITIVE_INFO_INIT(MAX_TIME_WINDOW, POWER_INFO_MAX_TIME_WIN_MASK, 48,
+	[MAX_TIME_WINDOW] = PRIMITIVE_INFO_INIT(MAX_TIME_WINDOW, POWER_INFO_MAX_TIME_WIN_MASK, 48,
 			    RAPL_DOMAIN_REG_INFO, TIME_UNIT, 0),
-	PRIMITIVE_INFO_INIT(THROTTLED_TIME, PERF_STATUS_THROTTLE_TIME_MASK, 0,
+	[THROTTLED_TIME] = PRIMITIVE_INFO_INIT(THROTTLED_TIME, PERF_STATUS_THROTTLE_TIME_MASK, 0,
 			    RAPL_DOMAIN_REG_PERF, TIME_UNIT, 0),
-	PRIMITIVE_INFO_INIT(PRIORITY_LEVEL, PP_POLICY_MASK, 0,
+	[PRIORITY_LEVEL] = PRIMITIVE_INFO_INIT(PRIORITY_LEVEL, PP_POLICY_MASK, 0,
 			    RAPL_DOMAIN_REG_POLICY, ARBITRARY_UNIT, 0),
-	PRIMITIVE_INFO_INIT(PSYS_POWER_LIMIT1, PSYS_POWER_LIMIT1_MASK, 0,
+	[PSYS_POWER_LIMIT1] = PRIMITIVE_INFO_INIT(PSYS_POWER_LIMIT1, PSYS_POWER_LIMIT1_MASK, 0,
 			    RAPL_DOMAIN_REG_LIMIT, POWER_UNIT, 0),
-	PRIMITIVE_INFO_INIT(PSYS_POWER_LIMIT2, PSYS_POWER_LIMIT2_MASK, 32,
+	[PSYS_POWER_LIMIT2] = PRIMITIVE_INFO_INIT(PSYS_POWER_LIMIT2, PSYS_POWER_LIMIT2_MASK, 32,
 			    RAPL_DOMAIN_REG_LIMIT, POWER_UNIT, 0),
-	PRIMITIVE_INFO_INIT(PSYS_PL1_ENABLE, PSYS_POWER_LIMIT1_ENABLE, 17,
+	[PSYS_PL1_ENABLE] = PRIMITIVE_INFO_INIT(PSYS_PL1_ENABLE, PSYS_POWER_LIMIT1_ENABLE, 17,
 			    RAPL_DOMAIN_REG_LIMIT, ARBITRARY_UNIT, 0),
-	PRIMITIVE_INFO_INIT(PSYS_PL2_ENABLE, PSYS_POWER_LIMIT2_ENABLE, 49,
+	[PSYS_PL2_ENABLE] = PRIMITIVE_INFO_INIT(PSYS_PL2_ENABLE, PSYS_POWER_LIMIT2_ENABLE, 49,
 			    RAPL_DOMAIN_REG_LIMIT, ARBITRARY_UNIT, 0),
-	PRIMITIVE_INFO_INIT(PSYS_TIME_WINDOW1, PSYS_TIME_WINDOW1_MASK, 19,
+	[PSYS_TIME_WINDOW1] = PRIMITIVE_INFO_INIT(PSYS_TIME_WINDOW1, PSYS_TIME_WINDOW1_MASK, 19,
 			    RAPL_DOMAIN_REG_LIMIT, TIME_UNIT, 0),
-	PRIMITIVE_INFO_INIT(PSYS_TIME_WINDOW2, PSYS_TIME_WINDOW2_MASK, 51,
+	[PSYS_TIME_WINDOW2] = PRIMITIVE_INFO_INIT(PSYS_TIME_WINDOW2, PSYS_TIME_WINDOW2_MASK, 51,
 			    RAPL_DOMAIN_REG_LIMIT, TIME_UNIT, 0),
 	/* non-hardware */
-	PRIMITIVE_INFO_INIT(AVERAGE_POWER, 0, 0, 0, POWER_UNIT,
+	[AVERAGE_POWER] = PRIMITIVE_INFO_INIT(AVERAGE_POWER, 0, 0, 0, POWER_UNIT,
 			    RAPL_PRIMITIVE_DERIVED),
-	{NULL, 0, 0, 0},
 };
 
 static struct rapl_primitive_info *get_rpi(struct rapl_package *rp, int prim)