perf/x86/cstate: Add Tremont support

Tremont is Intel's successor to Goldmont Plus. From the perspective of
Intel cstate residency counters, there is nothing changed compared with
Goldmont Plus and Goldmont.

Share glm_cstates with Goldmont Plus and Goldmont.
Update the comments for Tremont.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Link: https://lkml.kernel.org/r/1580236279-35492-2-git-send-email-kan.liang@linux.intel.com

diff --git a/arch/x86/events/intel/cstate.c b/arch/x86/events/intel/cstate.c
index e1daf41..4814c96 100644 (file)
--- a/arch/x86/events/intel/cstate.c
+++ b/arch/x86/events/intel/cstate.c
@@ -40,17 +40,18 @@
  * Model specific counters:
  *     MSR_CORE_C1_RES: CORE C1 Residency Counter
  *                      perf code: 0x00
- *                      Available model: SLM,AMT,GLM,CNL
+ *                      Available model: SLM,AMT,GLM,CNL,TNT
  *                      Scope: Core (each processor core has a MSR)
  *     MSR_CORE_C3_RESIDENCY: CORE C3 Residency Counter
  *                            perf code: 0x01
  *                            Available model: NHM,WSM,SNB,IVB,HSW,BDW,SKL,GLM,
- *                                             CNL,KBL,CML
+ *                                             CNL,KBL,CML,TNT
  *                            Scope: Core
  *     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
+ *                                             SKL,KNL,GLM,CNL,KBL,CML,ICL,TGL,
+ *                                             TNT
  *                            Scope: Core
  *     MSR_CORE_C7_RESIDENCY: CORE C7 Residency Counter
  *                            perf code: 0x03
@@ -60,17 +61,18 @@
  *     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
+ *                                             KBL,CML,ICL,TGL,TNT
  *                            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,ICL,TGL
+ *                                             GLM,CNL,KBL,CML,ICL,TGL,TNT
  *                            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,ICL,TGL
+ *                            Available model: SLM,AMT,NHM,WSM,SNB,IVB,HSW,BDW,
+ *                                             SKL,KNL,GLM,CNL,KBL,CML,ICL,TGL,
+ *                                             TNT
  *                            Scope: Package (physical package)
  *     MSR_PKG_C7_RESIDENCY:  Package C7 Residency Counter.
  *                            perf code: 0x03
@@ -87,7 +89,8 @@
  *                            Scope: Package (physical package)
  *     MSR_PKG_C10_RESIDENCY: Package C10 Residency Counter.
  *                            perf code: 0x06
- *                            Available model: HSW ULT,KBL,GLM,CNL,CML,ICL,TGL
+ *                            Available model: HSW ULT,KBL,GLM,CNL,CML,ICL,TGL,
+ *                                             TNT
  *                            Scope: Package (physical package)
  *
  */
@@ -640,8 +643,9 @@ static const struct x86_cpu_id intel_cstates_match[] __initconst = {
 
        X86_CSTATES_MODEL(INTEL_FAM6_ATOM_GOLDMONT,   glm_cstates),
        X86_CSTATES_MODEL(INTEL_FAM6_ATOM_GOLDMONT_D, glm_cstates),
-
        X86_CSTATES_MODEL(INTEL_FAM6_ATOM_GOLDMONT_PLUS, glm_cstates),
+       X86_CSTATES_MODEL(INTEL_FAM6_ATOM_TREMONT_D, glm_cstates),
+       X86_CSTATES_MODEL(INTEL_FAM6_ATOM_TREMONT, glm_cstates),
 
        X86_CSTATES_MODEL(INTEL_FAM6_ICELAKE_L, icl_cstates),
        X86_CSTATES_MODEL(INTEL_FAM6_ICELAKE,   icl_cstates),