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powercap: intel_rapl: Move TPMI primitives to TPMI driver

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TPMI-specific RAPL primitives differ from those used by MSR and MMIO
interfaces. Keeping them in the common RAPL driver requires
interface-specific handling logic and makes the common layer
unnecessarily complex.

Move the TPMI primitive definitions and associated bitmasks into the
TPMI interface driver. This change includes:

 1. Move TPMI-specific bitmask definitions from intel_rapl_common.c to
    intel_rapl_tpmi.c.
 2. Add TPMI-local struct rapl_primitive_info instance and assign it to
    priv->rpi during TPMI probe.
 3. Remove the RAPL TPMI related definitions from the common driver.

No functional changes are intended.

Co-developed-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Link: https://patch.msgid.link/20260331211950.3329932-5-sathyanarayanan.kuppuswamy@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Kuppuswamy Sathyanarayanan
2026-03-31 14:19:47 -07:00
committed by Rafael J. Wysocki
parent 04bcbed4cd
commit b874996a7c
2 changed files with 53 additions and 51 deletions
Download Patch File Download Diff File Expand all files Collapse all files

51
drivers/powercap/intel_rapl_common.c
View File

@@ -79,15 +79,6 @@
#define PSYS_TIME_WINDOW1_MASK GENMASK_ULL(25, 19)
#define PSYS_TIME_WINDOW2_MASK GENMASK_ULL(57, 51)
/* bitmasks for RAPL TPMI, used by primitive access functions */
#define TPMI_POWER_LIMIT_MASK GENMASK_ULL(17, 0)
#define TPMI_POWER_LIMIT_ENABLE BIT_ULL(62)
#define TPMI_TIME_WINDOW_MASK GENMASK_ULL(24, 18)
#define TPMI_INFO_SPEC_MASK GENMASK_ULL(17, 0)
#define TPMI_INFO_MIN_MASK GENMASK_ULL(35, 18)
#define TPMI_INFO_MAX_MASK GENMASK_ULL(53, 36)
#define TPMI_INFO_MAX_TIME_WIN_MASK GENMASK_ULL(60, 54)
/* Non HW constants */
#define RAPL_PRIMITIVE_DUMMY BIT(2)
@@ -665,45 +656,6 @@ static struct rapl_primitive_info rpi_msr[NR_RAPL_PRIMITIVES] = {
51, RAPL_DOMAIN_REG_LIMIT, TIME_UNIT, 0),
};
/* RAPL primitives for TPMI I/F */
static struct rapl_primitive_info rpi_tpmi[NR_RAPL_PRIMITIVES] = {
/* name, mask, shift, msr index, unit divisor */
[POWER_LIMIT1] = PRIMITIVE_INFO_INIT(POWER_LIMIT1, TPMI_POWER_LIMIT_MASK, 0,
RAPL_DOMAIN_REG_LIMIT, POWER_UNIT, 0),
[POWER_LIMIT2] = PRIMITIVE_INFO_INIT(POWER_LIMIT2, TPMI_POWER_LIMIT_MASK, 0,
RAPL_DOMAIN_REG_PL2, POWER_UNIT, 0),
[POWER_LIMIT4] = PRIMITIVE_INFO_INIT(POWER_LIMIT4, TPMI_POWER_LIMIT_MASK, 0,
RAPL_DOMAIN_REG_PL4, POWER_UNIT, 0),
[ENERGY_COUNTER] = PRIMITIVE_INFO_INIT(ENERGY_COUNTER, ENERGY_STATUS_MASK, 0,
RAPL_DOMAIN_REG_STATUS, ENERGY_UNIT, 0),
[PL1_LOCK] = PRIMITIVE_INFO_INIT(PL1_LOCK, POWER_HIGH_LOCK, 63,
RAPL_DOMAIN_REG_LIMIT, ARBITRARY_UNIT, 0),
[PL2_LOCK] = PRIMITIVE_INFO_INIT(PL2_LOCK, POWER_HIGH_LOCK, 63,
RAPL_DOMAIN_REG_PL2, ARBITRARY_UNIT, 0),
[PL4_LOCK] = PRIMITIVE_INFO_INIT(PL4_LOCK, POWER_HIGH_LOCK, 63,
RAPL_DOMAIN_REG_PL4, ARBITRARY_UNIT, 0),
[PL1_ENABLE] = PRIMITIVE_INFO_INIT(PL1_ENABLE, TPMI_POWER_LIMIT_ENABLE, 62,
RAPL_DOMAIN_REG_LIMIT, ARBITRARY_UNIT, 0),
[PL2_ENABLE] = PRIMITIVE_INFO_INIT(PL2_ENABLE, TPMI_POWER_LIMIT_ENABLE, 62,
RAPL_DOMAIN_REG_PL2, ARBITRARY_UNIT, 0),
[PL4_ENABLE] = PRIMITIVE_INFO_INIT(PL4_ENABLE, TPMI_POWER_LIMIT_ENABLE, 62,
RAPL_DOMAIN_REG_PL4, ARBITRARY_UNIT, 0),
[TIME_WINDOW1] = PRIMITIVE_INFO_INIT(TIME_WINDOW1, TPMI_TIME_WINDOW_MASK, 18,
RAPL_DOMAIN_REG_LIMIT, TIME_UNIT, 0),
[TIME_WINDOW2] = PRIMITIVE_INFO_INIT(TIME_WINDOW2, TPMI_TIME_WINDOW_MASK, 18,
RAPL_DOMAIN_REG_PL2, TIME_UNIT, 0),
[THERMAL_SPEC_POWER] = PRIMITIVE_INFO_INIT(THERMAL_SPEC_POWER, TPMI_INFO_SPEC_MASK, 0,
RAPL_DOMAIN_REG_INFO, POWER_UNIT, 0),
[MAX_POWER] = PRIMITIVE_INFO_INIT(MAX_POWER, TPMI_INFO_MAX_MASK, 36,
RAPL_DOMAIN_REG_INFO, POWER_UNIT, 0),
[MIN_POWER] = PRIMITIVE_INFO_INIT(MIN_POWER, TPMI_INFO_MIN_MASK, 18,
RAPL_DOMAIN_REG_INFO, POWER_UNIT, 0),
[MAX_TIME_WINDOW] = PRIMITIVE_INFO_INIT(MAX_TIME_WINDOW, TPMI_INFO_MAX_TIME_WIN_MASK,
54, RAPL_DOMAIN_REG_INFO, TIME_UNIT, 0),
[THROTTLED_TIME] = PRIMITIVE_INFO_INIT(THROTTLED_TIME, PERF_STATUS_THROTTLE_TIME_MASK,
0, RAPL_DOMAIN_REG_PERF, TIME_UNIT, 0),
};
static struct rapl_primitive_info *get_rpi(struct rapl_package *rp, int prim)
{
struct rapl_primitive_info *rpi = rp->priv->rpi;
@@ -722,9 +674,6 @@ static int rapl_config(struct rapl_package *rp)
case RAPL_IF_MSR:
rp->priv->rpi = rpi_msr;
break;
case RAPL_IF_TPMI:
rp->priv->rpi = rpi_tpmi;
break;
default:
return -EINVAL;
}

53
drivers/powercap/intel_rapl_tpmi.c
View File

@@ -62,6 +62,58 @@ static DEFINE_MUTEX(tpmi_rapl_lock);
static struct powercap_control_type *tpmi_control_type;
/* bitmasks for RAPL TPMI, used by primitive access functions */
#define TPMI_POWER_LIMIT_MASK GENMASK_ULL(17, 0)
#define TPMI_POWER_LIMIT_ENABLE BIT_ULL(62)
#define TPMI_POWER_HIGH_LOCK BIT_ULL(63)
#define TPMI_TIME_WINDOW_MASK GENMASK_ULL(24, 18)
#define TPMI_INFO_SPEC_MASK GENMASK_ULL(17, 0)
#define TPMI_INFO_MIN_MASK GENMASK_ULL(35, 18)
#define TPMI_INFO_MAX_MASK GENMASK_ULL(53, 36)
#define TPMI_INFO_MAX_TIME_WIN_MASK GENMASK_ULL(60, 54)
#define TPMI_ENERGY_STATUS_MASK GENMASK(31, 0)
#define TPMI_PERF_STATUS_THROTTLE_TIME_MASK GENMASK(31, 0)
/* RAPL primitives for TPMI I/F */
static struct rapl_primitive_info rpi_tpmi[NR_RAPL_PRIMITIVES] = {
/* name, mask, shift, msr index, unit divisor */
[POWER_LIMIT1] = PRIMITIVE_INFO_INIT(POWER_LIMIT1, TPMI_POWER_LIMIT_MASK, 0,
RAPL_DOMAIN_REG_LIMIT, POWER_UNIT, 0),
[POWER_LIMIT2] = PRIMITIVE_INFO_INIT(POWER_LIMIT2, TPMI_POWER_LIMIT_MASK, 0,
RAPL_DOMAIN_REG_PL2, POWER_UNIT, 0),
[POWER_LIMIT4] = PRIMITIVE_INFO_INIT(POWER_LIMIT4, TPMI_POWER_LIMIT_MASK, 0,
RAPL_DOMAIN_REG_PL4, POWER_UNIT, 0),
[ENERGY_COUNTER] = PRIMITIVE_INFO_INIT(ENERGY_COUNTER, TPMI_ENERGY_STATUS_MASK, 0,
RAPL_DOMAIN_REG_STATUS, ENERGY_UNIT, 0),
[PL1_LOCK] = PRIMITIVE_INFO_INIT(PL1_LOCK, TPMI_POWER_HIGH_LOCK, 63,
RAPL_DOMAIN_REG_LIMIT, ARBITRARY_UNIT, 0),
[PL2_LOCK] = PRIMITIVE_INFO_INIT(PL2_LOCK, TPMI_POWER_HIGH_LOCK, 63,
RAPL_DOMAIN_REG_PL2, ARBITRARY_UNIT, 0),
[PL4_LOCK] = PRIMITIVE_INFO_INIT(PL4_LOCK, TPMI_POWER_HIGH_LOCK, 63,
RAPL_DOMAIN_REG_PL4, ARBITRARY_UNIT, 0),
[PL1_ENABLE] = PRIMITIVE_INFO_INIT(PL1_ENABLE, TPMI_POWER_LIMIT_ENABLE, 62,
RAPL_DOMAIN_REG_LIMIT, ARBITRARY_UNIT, 0),
[PL2_ENABLE] = PRIMITIVE_INFO_INIT(PL2_ENABLE, TPMI_POWER_LIMIT_ENABLE, 62,
RAPL_DOMAIN_REG_PL2, ARBITRARY_UNIT, 0),
[PL4_ENABLE] = PRIMITIVE_INFO_INIT(PL4_ENABLE, TPMI_POWER_LIMIT_ENABLE, 62,
RAPL_DOMAIN_REG_PL4, ARBITRARY_UNIT, 0),
[TIME_WINDOW1] = PRIMITIVE_INFO_INIT(TIME_WINDOW1, TPMI_TIME_WINDOW_MASK, 18,
RAPL_DOMAIN_REG_LIMIT, TIME_UNIT, 0),
[TIME_WINDOW2] = PRIMITIVE_INFO_INIT(TIME_WINDOW2, TPMI_TIME_WINDOW_MASK, 18,
RAPL_DOMAIN_REG_PL2, TIME_UNIT, 0),
[THERMAL_SPEC_POWER] = PRIMITIVE_INFO_INIT(THERMAL_SPEC_POWER, TPMI_INFO_SPEC_MASK, 0,
RAPL_DOMAIN_REG_INFO, POWER_UNIT, 0),
[MAX_POWER] = PRIMITIVE_INFO_INIT(MAX_POWER, TPMI_INFO_MAX_MASK, 36,
RAPL_DOMAIN_REG_INFO, POWER_UNIT, 0),
[MIN_POWER] = PRIMITIVE_INFO_INIT(MIN_POWER, TPMI_INFO_MIN_MASK, 18,
RAPL_DOMAIN_REG_INFO, POWER_UNIT, 0),
[MAX_TIME_WINDOW] = PRIMITIVE_INFO_INIT(MAX_TIME_WINDOW, TPMI_INFO_MAX_TIME_WIN_MASK,
54, RAPL_DOMAIN_REG_INFO, TIME_UNIT, 0),
[THROTTLED_TIME] = PRIMITIVE_INFO_INIT(THROTTLED_TIME,
TPMI_PERF_STATUS_THROTTLE_TIME_MASK,
0, RAPL_DOMAIN_REG_PERF, TIME_UNIT, 0),
};
static int tpmi_rapl_read_raw(int id, struct reg_action *ra, bool atomic)
{
if (!ra->reg.mmio)
@@ -344,6 +396,7 @@ static int intel_rapl_tpmi_probe(struct auxiliary_device *auxdev,
trp->priv.write_raw = tpmi_rapl_write_raw;
trp->priv.control_type = tpmi_control_type;
trp->priv.defaults = &defaults_tpmi;
trp->priv.rpi = rpi_tpmi;
/* RAPL TPMI I/F is per physical package */
trp->rp = rapl_find_package_domain(info->package_id, &trp->priv, false);