[PATCH] perf/x86/cstate: Add ICELAKE_X and ICELAKE_D support

From: Zhang Rui
Date: Mon Jun 07 2021 - 02:36:01 EST


Introduce icx_cstates for ICELAKE_X and ICELAKE_D, and also update the
comments.

On ICELAKE_X and ICELAKE_D, Core C1, Core C6, Package C2 and Package C6
Residency MSRs are supported.

This patch has been tested on real hardware.

Signed-off-by: Zhang Rui <rui.zhang@xxxxxxxxx>
Acked-by: Artem Bityutskiy <artem.bityutskiy@xxxxxxxxxxxxxxx>
Reviewed-by: Kan Liang <kan.liang@xxxxxxxxxxxxxxx>
---
arch/x86/events/intel/cstate.c | 23 +++++++++++++++++------
1 file changed, 17 insertions(+), 6 deletions(-)

diff --git a/arch/x86/events/intel/cstate.c b/arch/x86/events/intel/cstate.c
index 433399069e27..c6262b154c3a 100644
--- a/arch/x86/events/intel/cstate.c
+++ b/arch/x86/events/intel/cstate.c
@@ -40,7 +40,7 @@
* Model specific counters:
* MSR_CORE_C1_RES: CORE C1 Residency Counter
* perf code: 0x00
- * Available model: SLM,AMT,GLM,CNL,TNT,ADL
+ * Available model: SLM,AMT,GLM,CNL,ICX,TNT,ADL
* Scope: Core (each processor core has a MSR)
* MSR_CORE_C3_RESIDENCY: CORE C3 Residency Counter
* perf code: 0x01
@@ -50,8 +50,8 @@
* MSR_CORE_C6_RESIDENCY: CORE C6 Residency Counter
* perf code: 0x02
* Available model: SLM,AMT,NHM,WSM,SNB,IVB,HSW,BDW,
- * SKL,KNL,GLM,CNL,KBL,CML,ICL,TGL,
- * TNT,RKL,ADL
+ * SKL,KNL,GLM,CNL,KBL,CML,ICL,ICX,
+ * TGL,TNT,RKL,ADL
* Scope: Core
* MSR_CORE_C7_RESIDENCY: CORE C7 Residency Counter
* perf code: 0x03
@@ -61,7 +61,7 @@
* MSR_PKG_C2_RESIDENCY: Package C2 Residency Counter.
* perf code: 0x00
* Available model: SNB,IVB,HSW,BDW,SKL,KNL,GLM,CNL,
- * KBL,CML,ICL,TGL,TNT,RKL,ADL
+ * KBL,CML,ICL,ICX,TGL,TNT,RKL,ADL
* Scope: Package (physical package)
* MSR_PKG_C3_RESIDENCY: Package C3 Residency Counter.
* perf code: 0x01
@@ -72,8 +72,8 @@
* MSR_PKG_C6_RESIDENCY: Package C6 Residency Counter.
* perf code: 0x02
* Available model: SLM,AMT,NHM,WSM,SNB,IVB,HSW,BDW,
- * SKL,KNL,GLM,CNL,KBL,CML,ICL,TGL,
- * TNT,RKL,ADL
+ * SKL,KNL,GLM,CNL,KBL,CML,ICL,ICX,
+ * TGL,TNT,RKL,ADL
* Scope: Package (physical package)
* MSR_PKG_C7_RESIDENCY: Package C7 Residency Counter.
* perf code: 0x03
@@ -566,6 +566,14 @@ static const struct cstate_model icl_cstates __initconst = {
BIT(PERF_CSTATE_PKG_C10_RES),
};

+static const struct cstate_model icx_cstates __initconst = {
+ .core_events = BIT(PERF_CSTATE_CORE_C1_RES) |
+ BIT(PERF_CSTATE_CORE_C6_RES),
+
+ .pkg_events = BIT(PERF_CSTATE_PKG_C2_RES) |
+ BIT(PERF_CSTATE_PKG_C6_RES),
+};
+
static const struct cstate_model adl_cstates __initconst = {
.core_events = BIT(PERF_CSTATE_CORE_C1_RES) |
BIT(PERF_CSTATE_CORE_C6_RES) |
@@ -664,6 +672,9 @@ static const struct x86_cpu_id intel_cstates_match[] __initconst = {

X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_L, &icl_cstates),
X86_MATCH_INTEL_FAM6_MODEL(ICELAKE, &icl_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_X, &icx_cstates),
+ X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_D, &icx_cstates),
+
X86_MATCH_INTEL_FAM6_MODEL(TIGERLAKE_L, &icl_cstates),
X86_MATCH_INTEL_FAM6_MODEL(TIGERLAKE, &icl_cstates),
X86_MATCH_INTEL_FAM6_MODEL(ROCKETLAKE, &icl_cstates),
--
2.17.1