[PATCH 3/7] perf/x86/intel/uncore: Add CBB PMON support for Diamond Rapids

[Zide Chen <zide.chen@intel.com>]

On DMR, PMON units inside the Core Building Block (CBB) are enumerated
separately from those in the Integrated Memory and I/O Hub (IMH).

A new per-CBB MSR (0x710) is introduced for discovery table enumeration.

For counter control registers, the tid_en bit (bit 16) exists on CBO,
SBO, and Santa, but it is not used by any events.  Mark this bit as
reserved.

Similarly, disallow extended umask (bits 32–63) on Santa and sNCU.

Additionally, ignore broken PMON units for MSE and SB2UCIE.

Signed-off-by: Zide Chen <zide.chen@intel.com>
---
 arch/x86/events/intel/uncore.c           |  1 +
 arch/x86/events/intel/uncore_discovery.h |  2 +
 arch/x86/events/intel/uncore_snbep.c     | 48 ++++++++++++++++++++++--
 3 files changed, 48 insertions(+), 3 deletions(-)

diff --git a/arch/x86/events/intel/uncore.c b/arch/x86/events/intel/uncore.c
index 7ab02638e3f1..88c32e528add 100644
--- a/arch/x86/events/intel/uncore.c
+++ b/arch/x86/events/intel/uncore.c
@@ -1847,6 +1847,7 @@ static const struct intel_uncore_init_fun dmr_uncore_init __initconst = {
 	.pci_init = dmr_uncore_pci_init,
 	.mmio_init = dmr_uncore_mmio_init,
 	.discovery_pci = DMR_UNCORE_DISCOVERY_TABLE_DEVICE,
+	.discovery_msr = DMR_UNCORE_DISCOVERY_MSR,
 	.uncore_units_ignore = dmr_uncore_units_ignore,
 };
 
diff --git a/arch/x86/events/intel/uncore_discovery.h b/arch/x86/events/intel/uncore_discovery.h
index 786670276b5f..a558c31ff2b1 100644
--- a/arch/x86/events/intel/uncore_discovery.h
+++ b/arch/x86/events/intel/uncore_discovery.h
@@ -2,6 +2,8 @@
 
 /* Store the full address of the global discovery table */
 #define UNCORE_DISCOVERY_MSR			0x201e
+/* Alternative MSR that is used by server CPUs like DMR */
+#define DMR_UNCORE_DISCOVERY_MSR		0x710
 
 /* Generic device ID of a discovery table device */
 #define UNCORE_DISCOVERY_TABLE_DEVICE		0x09a7
diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index dee94bbdddcf..bd1569876640 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -6806,6 +6806,28 @@ static struct intel_uncore_type dmr_uncore_hamvf = {
 	.attr_update		= uncore_alias_groups,
 };
 
+static struct intel_uncore_type dmr_uncore_cbo = {
+	.name			= "cbo",
+	.event_mask_ext		= DMR_HAMVF_EVENT_MASK_EXT,
+	.format_group		= &dmr_sca_uncore_format_group,
+	.attr_update		= uncore_alias_groups,
+};
+
+static struct intel_uncore_type dmr_uncore_santa = {
+	.name			= "santa",
+	.attr_update		= uncore_alias_groups,
+};
+
+static struct intel_uncore_type dmr_uncore_cncu = {
+	.name			= "cncu",
+	.attr_update		= uncore_alias_groups,
+};
+
+static struct intel_uncore_type dmr_uncore_sncu = {
+	.name			= "sncu",
+	.attr_update		= uncore_alias_groups,
+};
+
 static struct intel_uncore_type dmr_uncore_ula = {
 	.name			= "ula",
 	.event_mask_ext		= DMR_HAMVF_EVENT_MASK_EXT,
@@ -6813,6 +6835,20 @@ static struct intel_uncore_type dmr_uncore_ula = {
 	.attr_update		= uncore_alias_groups,
 };
 
+static struct intel_uncore_type dmr_uncore_dda = {
+	.name			= "dda",
+	.event_mask_ext		= DMR_HAMVF_EVENT_MASK_EXT,
+	.format_group		= &dmr_sca_uncore_format_group,
+	.attr_update		= uncore_alias_groups,
+};
+
+static struct intel_uncore_type dmr_uncore_sbo = {
+	.name			= "sbo",
+	.event_mask_ext		= DMR_HAMVF_EVENT_MASK_EXT,
+	.format_group		= &dmr_sca_uncore_format_group,
+	.attr_update		= uncore_alias_groups,
+};
+
 static struct intel_uncore_type dmr_uncore_ubr = {
 	.name			= "ubr",
 	.event_mask_ext		= DMR_HAMVF_EVENT_MASK_EXT,
@@ -6901,10 +6937,15 @@ static struct intel_uncore_type *dmr_uncores[UNCORE_DMR_NUM_UNCORE_TYPES] = {
 	NULL, NULL, NULL,
 	NULL, NULL,
 	&dmr_uncore_hamvf,
-	NULL,
-	NULL, NULL, NULL,
+	&dmr_uncore_cbo,
+	&dmr_uncore_santa,
+	&dmr_uncore_cncu,
+	&dmr_uncore_sncu,
 	&dmr_uncore_ula,
-	NULL, NULL, NULL, NULL,
+	&dmr_uncore_dda,
+	NULL,
+	&dmr_uncore_sbo,
+	NULL,
 	NULL, NULL, NULL,
 	&dmr_uncore_ubr,
 	NULL,
@@ -6919,6 +6960,7 @@ static struct intel_uncore_type *dmr_uncores[UNCORE_DMR_NUM_UNCORE_TYPES] = {
 
 int dmr_uncore_units_ignore[] = {
 	0x13,		/* MSE */
+	0x25,		/* SB2UCIE */
 	UNCORE_IGNORE_END
 };
 
-- 
2.52.0