diff mbox series

[SRU,N,8/8] perf/x86/intel/uncore: Support HBM and CXL PMON counters

Message ID 20240918205114.31083-9-michael.reed@canonical.com
State New
Headers show
Series Ubuntu 24.04 - GPU cannot be installed with DL380a Gen12 (2P, SRF-SP) | expand

Commit Message

Michael Reed Sept. 18, 2024, 8:51 p.m. UTC 
From: Kan Liang <kan.liang@linux.intel.com>

BugLink: https://bugs.launchpad.net/bugs/2081079

Unknown uncore PMON types can be found in both SPR and EMR with HBM or
CXL.

 $ls /sys/devices/ | grep type
 uncore_type_12_16
 uncore_type_12_18
 uncore_type_12_2
 uncore_type_12_4
 uncore_type_12_6
 uncore_type_12_8
 uncore_type_13_17
 uncore_type_13_19
 uncore_type_13_3
 uncore_type_13_5
 uncore_type_13_7
 uncore_type_13_9

The unknown PMON types are HBM and CXL PMON. Except for the name, the
other information regarding the HBM and CXL PMON counters can be
retrieved via the discovery table. Add them into the uncores tables for
SPR and EMR.

The event config registers for all CXL related units are 8-byte apart.
Add SPR_UNCORE_MMIO_OFFS8_COMMON_FORMAT to specially handle it.

Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Yunying Sun <yunying.sun@intel.com>
Link: https://lore.kernel.org/r/20240614134631.1092359-9-kan.liang@linux.intel.com
(cherry picked from commit f8a86a9bb5f7e65d8c4405052de062639a8783bb)
Signed-off-by: Michael Reed <Michael.Reed@canonical.com>
---
 arch/x86/events/intel/uncore_snbep.c | 55 +++++++++++++++++++++++++++-
 1 file changed, 53 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index d51d3e6dd2b8..8f23c0247305 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -6162,7 +6162,55 @@  static struct intel_uncore_type spr_uncore_mdf = {
 	.name			= "mdf",
 };
 
-#define UNCORE_SPR_NUM_UNCORE_TYPES		12
+static void spr_uncore_mmio_offs8_init_box(struct intel_uncore_box *box)
+{
+	__set_bit(UNCORE_BOX_FLAG_CTL_OFFS8, &box->flags);
+	intel_generic_uncore_mmio_init_box(box);
+}
+
+static struct intel_uncore_ops spr_uncore_mmio_offs8_ops = {
+	.init_box		= spr_uncore_mmio_offs8_init_box,
+	.exit_box		= uncore_mmio_exit_box,
+	.disable_box		= intel_generic_uncore_mmio_disable_box,
+	.enable_box		= intel_generic_uncore_mmio_enable_box,
+	.disable_event		= intel_generic_uncore_mmio_disable_event,
+	.enable_event		= spr_uncore_mmio_enable_event,
+	.read_counter		= uncore_mmio_read_counter,
+};
+
+#define SPR_UNCORE_MMIO_OFFS8_COMMON_FORMAT()			\
+	SPR_UNCORE_COMMON_FORMAT(),				\
+	.ops			= &spr_uncore_mmio_offs8_ops
+
+static struct event_constraint spr_uncore_cxlcm_constraints[] = {
+	UNCORE_EVENT_CONSTRAINT(0x02, 0x0f),
+	UNCORE_EVENT_CONSTRAINT(0x05, 0x0f),
+	UNCORE_EVENT_CONSTRAINT(0x40, 0xf0),
+	UNCORE_EVENT_CONSTRAINT(0x41, 0xf0),
+	UNCORE_EVENT_CONSTRAINT(0x42, 0xf0),
+	UNCORE_EVENT_CONSTRAINT(0x43, 0xf0),
+	UNCORE_EVENT_CONSTRAINT(0x4b, 0xf0),
+	UNCORE_EVENT_CONSTRAINT(0x52, 0xf0),
+	EVENT_CONSTRAINT_END
+};
+
+static struct intel_uncore_type spr_uncore_cxlcm = {
+	SPR_UNCORE_MMIO_OFFS8_COMMON_FORMAT(),
+	.name			= "cxlcm",
+	.constraints		= spr_uncore_cxlcm_constraints,
+};
+
+static struct intel_uncore_type spr_uncore_cxldp = {
+	SPR_UNCORE_MMIO_OFFS8_COMMON_FORMAT(),
+	.name			= "cxldp",
+};
+
+static struct intel_uncore_type spr_uncore_hbm = {
+	SPR_UNCORE_COMMON_FORMAT(),
+	.name			= "hbm",
+};
+
+#define UNCORE_SPR_NUM_UNCORE_TYPES		15
 #define UNCORE_SPR_CHA				0
 #define UNCORE_SPR_IIO				1
 #define UNCORE_SPR_IMC				6
@@ -6186,6 +6234,9 @@  static struct intel_uncore_type *spr_uncores[UNCORE_SPR_NUM_UNCORE_TYPES] = {
 	NULL,
 	NULL,
 	&spr_uncore_mdf,
+	&spr_uncore_cxlcm,
+	&spr_uncore_cxldp,
+	&spr_uncore_hbm,
 };
 
 /*
@@ -6655,7 +6706,7 @@  static struct intel_uncore_type gnr_uncore_b2cmi = {
 };
 
 static struct intel_uncore_type gnr_uncore_b2cxl = {
-	SPR_UNCORE_MMIO_COMMON_FORMAT(),
+	SPR_UNCORE_MMIO_OFFS8_COMMON_FORMAT(),
 	.name			= "b2cxl",
 };