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

From: tip-bot2 for Kan Liang
Date: Mon Jul 05 2021 - 03:54:08 EST


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

Commit-ID: e199eb5131591c020705deceee224b437d09ece4
Gitweb: https://git.kernel.org/tip/e199eb5131591c020705deceee224b437d09ece4
Author: Kan Liang <kan.liang@xxxxxxxxxxxxxxx>
AuthorDate: Wed, 30 Jun 2021 14:08:28 -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 IRP support

The IRP is responsible for maintaining coherency for the IIO traffic
targeting coherent memory.

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

Factor out SPR_UNCORE_COMMON_FORMAT, which can be reused by the
following uncore units.

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/1625087320-194204-5-git-send-email-kan.liang@xxxxxxxxxxxxxxx
---
arch/x86/events/intel/uncore_snbep.c | 27 ++++++++++++++++++++++++++-
1 file changed, 26 insertions(+), 1 deletion(-)

diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c
index 3b40395..de5a6d1 100644
--- a/arch/x86/events/intel/uncore_snbep.c
+++ b/arch/x86/events/intel/uncore_snbep.c
@@ -5603,12 +5603,37 @@ static struct intel_uncore_type spr_uncore_iio = {
.format_group = &snr_uncore_iio_format_group,
};

+static struct attribute *spr_uncore_raw_formats_attr[] = {
+ &format_attr_event.attr,
+ &format_attr_umask_ext4.attr,
+ &format_attr_edge.attr,
+ &format_attr_inv.attr,
+ &format_attr_thresh8.attr,
+ NULL,
+};
+
+static const struct attribute_group spr_uncore_raw_format_group = {
+ .name = "format",
+ .attrs = spr_uncore_raw_formats_attr,
+};
+
+#define SPR_UNCORE_COMMON_FORMAT() \
+ .event_mask = SNBEP_PMON_RAW_EVENT_MASK, \
+ .event_mask_ext = SPR_RAW_EVENT_MASK_EXT, \
+ .format_group = &spr_uncore_raw_format_group
+
+static struct intel_uncore_type spr_uncore_irp = {
+ SPR_UNCORE_COMMON_FORMAT(),
+ .name = "irp",
+
+};
+
#define UNCORE_SPR_NUM_UNCORE_TYPES 12

static struct intel_uncore_type *spr_uncores[UNCORE_SPR_NUM_UNCORE_TYPES] = {
&spr_uncore_chabox,
&spr_uncore_iio,
- NULL,
+ &spr_uncore_irp,
NULL,
NULL,
NULL,