[tip: perf/core] perf/x86/intel/uncore: Add Sapphire Rapids server IIO support

[tip-bot2 for Kan Liang]

The following commit has been merged into the perf/core branch of tip:

Commit-ID:     3ba7095beaec1bace1b5864fa92b2b7a0eaadf38
Gitweb:        https://git.kernel.org/tip/3ba7095beaec1bace1b5864fa92b2b7a0eaadf38
Author:        Kan Liang <kan.liang@xxxxxxxxxxxxxxx>
AuthorDate:    Wed, 30 Jun 2021 14:08:27 -07:00
Committer:     Peter Zijlstra <peterz@xxxxxxxxxxxxx>
CommitterDate: Fri, 02 Jul 2021 15:58:37 +02:00

perf/x86/intel/uncore: Add Sapphire Rapids server IIO support

The IIO stacks are responsible for managing the traffic between the PCI
Express* (PCIe*) domain and the mesh domain. The IIO PMON block is
situated near the IIO stacks traffic controller capturing the traffic
controller as well as the PCIe* root port information.

The layout of the control registers for a IIO uncore unit is a little
bit different from the generic one.

Signed-off-by: Kan Liang <kan.liang@xxxxxxxxxxxxxxx>
Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx>
Reviewed-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/1625087320-194204-4-git-send-email-kan.liang@xxxxxxxxxxxxxxx
---
 arch/x86/events/intel/uncore_snbep.c |  9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index 8a470d2..3b40395 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -5596,11 +5596,18 @@ static struct intel_uncore_type spr_uncore_chabox = {
 	.format_group		= &spr_uncore_chabox_format_group,
 };
 
+static struct intel_uncore_type spr_uncore_iio = {
+	.name			= "iio",
+	.event_mask		= SNBEP_PMON_RAW_EVENT_MASK,
+	.event_mask_ext		= SNR_IIO_PMON_RAW_EVENT_MASK_EXT,
+	.format_group		= &snr_uncore_iio_format_group,
+};
+
 #define UNCORE_SPR_NUM_UNCORE_TYPES		12
 
 static struct intel_uncore_type *spr_uncores[UNCORE_SPR_NUM_UNCORE_TYPES] = {
 	&spr_uncore_chabox,
-	NULL,
+	&spr_uncore_iio,
 	NULL,
 	NULL,
 	NULL,