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Subject[tip: perf/urgent] perf/x86/cstate: Update C-state counters for Ice Lake
The following commit has been merged into the perf/urgent branch of tip:

Commit-ID: 374f26643b3ce2bfab02053e292f16adf6e57aa1
Gitweb: https://git.kernel.org/tip/374f26643b3ce2bfab02053e292f16adf6e57aa1
Author: Kan Liang <kan.liang@linux.intel.com>
AuthorDate: Tue, 08 Oct 2019 08:50:07 -07:00
Committer: Ingo Molnar <mingo@kernel.org>
CommitterDate: Wed, 09 Oct 2019 12:44:16 +02:00

perf/x86/cstate: Update C-state counters for Ice Lake

There is no Core C3 C-State counter for Ice Lake.
Package C8/C9/C10 C-State counters are added for Ice Lake.

Introduce a new event list, icl_cstates, for Ice Lake.
Update the comments accordingly.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Fixes: f08c47d1f86c ("perf/x86/intel/cstate: Add Icelake support")
Link: https://lkml.kernel.org/r/1570549810-25049-7-git-send-email-kan.liang@linux.intel.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---
arch/x86/events/intel/cstate.c | 36 ++++++++++++++++++++++-----------
1 file changed, 25 insertions(+), 11 deletions(-)

diff --git a/arch/x86/events/intel/cstate.c b/arch/x86/events/intel/cstate.c
index 21c65e1..4d232ac 100644
--- a/arch/x86/events/intel/cstate.c
+++ b/arch/x86/events/intel/cstate.c
@@ -50,43 +50,44 @@
* 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
+ * SKL,KNL,GLM,CNL,KBL,CML,ICL
* Scope: Core
* MSR_CORE_C7_RESIDENCY: CORE C7 Residency Counter
* perf code: 0x03
- * Available model: SNB,IVB,HSW,BDW,SKL,CNL,KBL,CML
+ * Available model: SNB,IVB,HSW,BDW,SKL,CNL,KBL,CML,
+ * ICL
* Scope: Core
* MSR_PKG_C2_RESIDENCY: Package C2 Residency Counter.
* perf code: 0x00
* Available model: SNB,IVB,HSW,BDW,SKL,KNL,GLM,CNL,
- * KBL,CML
+ * KBL,CML,ICL
* Scope: Package (physical package)
* MSR_PKG_C3_RESIDENCY: Package C3 Residency Counter.
* perf code: 0x01
* Available model: NHM,WSM,SNB,IVB,HSW,BDW,SKL,KNL,
- * GLM,CNL,KBL,CML
+ * GLM,CNL,KBL,CML,ICL
* Scope: Package (physical package)
* 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
+ * SKL,KNL,GLM,CNL,KBL,CML,ICL
* Scope: Package (physical package)
* MSR_PKG_C7_RESIDENCY: Package C7 Residency Counter.
* perf code: 0x03
* Available model: NHM,WSM,SNB,IVB,HSW,BDW,SKL,CNL,
- * KBL,CML
+ * KBL,CML,ICL
* Scope: Package (physical package)
* MSR_PKG_C8_RESIDENCY: Package C8 Residency Counter.
* perf code: 0x04
- * Available model: HSW ULT,KBL,CNL,CML
+ * Available model: HSW ULT,KBL,CNL,CML,ICL
* Scope: Package (physical package)
* MSR_PKG_C9_RESIDENCY: Package C9 Residency Counter.
* perf code: 0x05
- * Available model: HSW ULT,KBL,CNL,CML
+ * Available model: HSW ULT,KBL,CNL,CML,ICL
* Scope: Package (physical package)
* MSR_PKG_C10_RESIDENCY: Package C10 Residency Counter.
* perf code: 0x06
- * Available model: HSW ULT,KBL,GLM,CNL,CML
+ * Available model: HSW ULT,KBL,GLM,CNL,CML,ICL
* Scope: Package (physical package)
*
*/
@@ -546,6 +547,19 @@ static const struct cstate_model cnl_cstates __initconst = {
BIT(PERF_CSTATE_PKG_C10_RES),
};

+static const struct cstate_model icl_cstates __initconst = {
+ .core_events = BIT(PERF_CSTATE_CORE_C6_RES) |
+ BIT(PERF_CSTATE_CORE_C7_RES),
+
+ .pkg_events = BIT(PERF_CSTATE_PKG_C2_RES) |
+ BIT(PERF_CSTATE_PKG_C3_RES) |
+ BIT(PERF_CSTATE_PKG_C6_RES) |
+ BIT(PERF_CSTATE_PKG_C7_RES) |
+ BIT(PERF_CSTATE_PKG_C8_RES) |
+ BIT(PERF_CSTATE_PKG_C9_RES) |
+ BIT(PERF_CSTATE_PKG_C10_RES),
+};
+
static const struct cstate_model slm_cstates __initconst = {
.core_events = BIT(PERF_CSTATE_CORE_C1_RES) |
BIT(PERF_CSTATE_CORE_C6_RES),
@@ -629,8 +643,8 @@ static const struct x86_cpu_id intel_cstates_match[] __initconst = {

X86_CSTATES_MODEL(INTEL_FAM6_ATOM_GOLDMONT_PLUS, glm_cstates),

- X86_CSTATES_MODEL(INTEL_FAM6_ICELAKE_L, snb_cstates),
- X86_CSTATES_MODEL(INTEL_FAM6_ICELAKE, snb_cstates),
+ X86_CSTATES_MODEL(INTEL_FAM6_ICELAKE_L, icl_cstates),
+ X86_CSTATES_MODEL(INTEL_FAM6_ICELAKE, icl_cstates),
{ },
};
MODULE_DEVICE_TABLE(x86cpu, intel_cstates_match);
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