perf/x86: Add Meteor Lake support

From PMU's perspective, Meteor Lake is similar to Alder Lake. Both are
hybrid platforms, with e-core and p-core.

The key differences include:
- The e-core supports 2 PDIST GP counters (GP0 & GP1)
- New MSRs for the Module Snoop Response Events on the e-core.
- New Data Source fields are introduced for the e-core.
- There are 8 GP counters for the e-core.
- The load latency AUX event is not required for the p-core anymore.
- Retire Latency (Support in a separate patch) for both cores.

Since most of the code in the intel_pmu_init() should be the same as
Alder Lake, to avoid code duplication, share the path with Alder Lake.

Add new specific functions of extra_regs, and get_event_constraints
to support the OCR events, Module Snoop Response Events and 2 PDIST
GP counters on e-core.

Add new MTL specific mem_attrs which drops the load latency AUX event.

The Data Source field is extended to 4:0, which can contains max 32
sources.

The Retire Latency is implemented with a separate patch.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Andi Kleen <ak@linux.intel.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Link: https://lore.kernel.org/r/20230104201349.1451191-2-kan.liang@linux.intel.com

1 files changed, 14 insertions, 7 deletions

diff --git a/arch/x86/events/perf_event.h b/arch/x86/events/perf_event.h
index 0e849f28a5c1..1ac9d9e3c55c 100644
--- a/arch/x86/events/perf_event.h
+++ b/arch/x86/events/perf_event.h
@@ -35,15 +35,17 @@
  * per-core reg tables.
  */
 enum extra_reg_type {
-	EXTRA_REG_NONE  = -1,	/* not used */
+	EXTRA_REG_NONE		= -1, /* not used */
 
-	EXTRA_REG_RSP_0 = 0,	/* offcore_response_0 */
-	EXTRA_REG_RSP_1 = 1,	/* offcore_response_1 */
-	EXTRA_REG_LBR   = 2,	/* lbr_select */
-	EXTRA_REG_LDLAT = 3,	/* ld_lat_threshold */
-	EXTRA_REG_FE    = 4,    /* fe_* */
+	EXTRA_REG_RSP_0		= 0,  /* offcore_response_0 */
+	EXTRA_REG_RSP_1		= 1,  /* offcore_response_1 */
+	EXTRA_REG_LBR		= 2,  /* lbr_select */
+	EXTRA_REG_LDLAT		= 3,  /* ld_lat_threshold */
+	EXTRA_REG_FE		= 4,  /* fe_* */
+	EXTRA_REG_SNOOP_0	= 5,  /* snoop response 0 */
+	EXTRA_REG_SNOOP_1	= 6,  /* snoop response 1 */
 
-	EXTRA_REG_MAX		/* number of entries needed */
+	EXTRA_REG_MAX		      /* number of entries needed */
 };
 
 struct event_constraint {
@@ -647,6 +649,7 @@ enum {
 };
 
 #define PERF_PEBS_DATA_SOURCE_MAX	0x10
+#define PERF_PEBS_DATA_SOURCE_MASK	(PERF_PEBS_DATA_SOURCE_MAX - 1)
 
 struct x86_hybrid_pmu {
 	struct pmu			pmu;
@@ -1486,6 +1489,8 @@ int intel_pmu_drain_bts_buffer(void);
 
 u64 adl_latency_data_small(struct perf_event *event, u64 status);
 
+u64 mtl_latency_data_small(struct perf_event *event, u64 status);
+
 extern struct event_constraint intel_core2_pebs_event_constraints[];
 
 extern struct event_constraint intel_atom_pebs_event_constraints[];
@@ -1597,6 +1602,8 @@ void intel_pmu_pebs_data_source_adl(void);
 
 void intel_pmu_pebs_data_source_grt(void);
 
+void intel_pmu_pebs_data_source_mtl(void);
+
 int intel_pmu_setup_lbr_filter(struct perf_event *event);
 
 void intel_pt_interrupt(void);