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arm-bsp/tc: CI-700 driver enablement in kernel.

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Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
Change-Id: If30b32a0f8ec9dbfe8bbf527eeb909a4c2540e9b
Signed-off-by: Jon Mason <jon.mason@arm.com>
This commit is contained in:
Rupinderjit Singh
2022-04-28 16:47:34 +01:00
committed by Jon Mason
parent 84abf1d593
commit 2f9a15ba56
20 changed files with 2688 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files
meta-arm-bsp/recipes-bsp/trusted-firmware-a/files/0002-Enable-CI-700-interconnect.patch
+34
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@@ -0,0 +1,34 @@
From 366215a3705228a12efe9f92f1d1033f34ee89fa Mon Sep 17 00:00:00 2001
From: Rupinderjit Singh <rupinderjit.singh@arm.com>
Date: Thu, 21 Apr 2022 14:45:23 +0100
Subject: [PATCH] Enable CI-700 interconnect
Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
Change-Id: Ie56d47a0b65274a467e98b9ecd3caf25dfe10544
Upstream-Status: Submitted [https://review.trustedfirmware.org/c/TF-A/trusted-firmware-a/+/14918]
---
fdts/tc.dts | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/fdts/tc.dts b/fdts/tc.dts
index 7c0e84260..d0985851d 100644
--- a/fdts/tc.dts
+++ b/fdts/tc.dts
@@ -461,6 +461,12 @@
status = "okay";
};
+ cmn-pmu {
+ compatible = "arm,ci-700";
+ reg = <0x0 0x50000000 0x0 0x10000000>;
+ interrupts = <0x0 460 0x4>;
+ };
+
dp0: display@2cc00000 {
#address-cells = <1>;
#size-cells = <0>;
--
2.25.1
meta-arm-bsp/recipes-bsp/trusted-firmware-a/trusted-firmware-a-tc.inc
+1
View File
@@ -8,6 +8,7 @@ DEPENDS += "scp-firmware util-linux-native gptfdisk-native"
SRC_URI:append = " \
file://0001-plat-tc-Increase-maximum-BL2-size.patch \
file://0002-Enable-CI-700-interconnect.patch \
file://generate_metadata.py \
"
meta-arm-bsp/recipes-kernel/linux/arm-platforms-kmeta/bsp/arm-platforms/tc.scc
+1
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@@ -5,3 +5,4 @@ kconf non-hardware tc/gralloc.cfg
kconf non-hardware tc/mali.cfg
kconf non-hardware tc/tee.cfg
kconf non-hardware tc/virtio.cfg
kconf non-hardware tc/ci700.cfg
meta-arm-bsp/recipes-kernel/linux/arm-platforms-kmeta/bsp/arm-platforms/tc/ci700.cfg
+1
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@@ -0,0 +1 @@
CONFIG_ARM_CMN=y
meta-arm-bsp/recipes-kernel/linux/linux-arm-platforms.inc
+14
View File
@@ -158,6 +158,20 @@ SRC_URI:append:tc = " \
file://0021-arm_ffa-add-support-for-FFA-v1.1.patch \
file://0022-coresight-etm4x-Save-restore-TRFCR_EL1.patch \
file://0023-coresight-etm4x-Use-Trace-Filtering-controls-dynamic.patch \
file://0024-perf-arm-cmn-Use-irq_set_affinity.patch \
file://0025-perf-arm-cmn-Fix-CPU-hotplug-unregistration.patch \
file://0026-perf-arm-cmn-Account-for-NUMA-affinity.patch \
file://0027-perf-arm-cmn-Drop-compile-test-restriction.patch \
file://0028-perf-arm-cmn-Refactor-node-ID-handling.patch \
file://0029-perf-arm-cmn-Streamline-node-iteration.patch \
file://0030-drivers-perf-arm-cmn-Add-space-after.patch \
file://0031-perf-arm-cmn-Refactor-DTM-handling.patch \
file://0032-perf-arm-cmn-Optimise-DTM-counter-reads.patch \
file://0033-perf-arm-cmn-Optimise-DTC-counter-accesses.patch \
file://0034-perf-arm-cmn-Move-group-validation-data-off-stack.patch \
file://0035-perf-arm-cmn-Demarcate-CMN-600-specifics.patch \
file://0036-perf-arm-cmn-Support-new-IP-features.patch \
file://0037-perf-arm-cmn-Add-CI-700-Support.patch \
"
KERNEL_FEATURES:append:tc = " bsp/arm-platforms/tc.scc"
KERNEL_FEATURES:append:tc1 = " bsp/arm-platforms/tc-autofdo.scc"
meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0024-perf-arm-cmn-Use-irq_set_affinity.patch
+74
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@@ -0,0 +1,74 @@
From ad3c5d9224ffcd7b2e083f03441c6188d2bbef67 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Tue, 18 May 2021 11:17:28 +0200
Subject: [PATCH 01/14] perf/arm-cmn: Use irq_set_affinity()
The driver uses irq_set_affinity_hint() to set the affinity for the PMU
interrupts, which relies on the undocumented side effect that this function
actually sets the affinity under the hood.
Setting an hint is clearly not a guarantee and for these PMU interrupts an
affinity hint, which is supposed to guide userspace for setting affinity,
is beyond pointless, because the affinity of these interrupts cannot be
modified from user space.
Aside of that the error checks are bogus because the only error which is
returned from irq_set_affinity_hint() is when there is no irq descriptor
for the interrupt number, but not when the affinity set fails. That's on
purpose because the hint can point to an offline CPU.
Replace the mindless abuse with irq_set_affinity().
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lore.kernel.org/r/20210518093118.277228577@linutronix.de
Signed-off-by: Will Deacon <will@kernel.org>
Upstream-Status: Backport [https://lore.kernel.org/r/20210518093118.277228577@linutronix.de]
Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/arm-cmn.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c
index 46defb1dcf86..38fa6f89d0bc 100644
--- a/drivers/perf/arm-cmn.c
+++ b/drivers/perf/arm-cmn.c
@@ -1162,7 +1162,7 @@ static int arm_cmn_pmu_offline_cpu(unsigned int cpu, struct hlist_node *node)
perf_pmu_migrate_context(&cmn->pmu, cpu, target);
for (i = 0; i < cmn->num_dtcs; i++)
- irq_set_affinity_hint(cmn->dtc[i].irq, cpumask_of(target));
+ irq_set_affinity(cmn->dtc[i].irq, cpumask_of(target));
cmn->cpu = target;
return 0;
}
@@ -1222,7 +1222,7 @@ static int arm_cmn_init_irqs(struct arm_cmn *cmn)
if (err)
return err;
- err = irq_set_affinity_hint(irq, cpumask_of(cmn->cpu));
+ err = irq_set_affinity(irq, cpumask_of(cmn->cpu));
if (err)
return err;
next:
@@ -1568,16 +1568,11 @@ static int arm_cmn_probe(struct platform_device *pdev)
static int arm_cmn_remove(struct platform_device *pdev)
{
struct arm_cmn *cmn = platform_get_drvdata(pdev);
- int i;
writel_relaxed(0, cmn->dtc[0].base + CMN_DT_DTC_CTL);
perf_pmu_unregister(&cmn->pmu);
cpuhp_state_remove_instance(arm_cmn_hp_state, &cmn->cpuhp_node);
-
- for (i = 0; i < cmn->num_dtcs; i++)
- irq_set_affinity_hint(cmn->dtc[i].irq, NULL);
-
return 0;
}
--
2.25.1
meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0025-perf-arm-cmn-Fix-CPU-hotplug-unregistration.patch
+46
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@@ -0,0 +1,46 @@
From 249304c3517a38863c8e45e63d509d01bd67dead Mon Sep 17 00:00:00 2001
From: Robin Murphy <robin.murphy@arm.com>
Date: Fri, 3 Dec 2021 11:44:50 +0000
Subject: [PATCH 02/14] perf/arm-cmn: Fix CPU hotplug unregistration
Attempting to migrate the PMU context after we've unregistered the PMU
device, or especially if we never successfully registered it in the
first place, is a woefully bad idea. It's also fundamentally pointless
anyway. Make sure to unregister an instance from the hotplug handler
*without* invoking the teardown callback.
Fixes: 0ba64770a2f2 ("perf: Add Arm CMN-600 PMU driver")
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Upstream-Status: Backport [https://lore.kernel.org/r/2c221d745544774e4b07583b65b5d4d94f7e0fe4.1638530442.git.robin.murphy@arm.com]
Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/arm-cmn.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c
index 38fa6f89d0bc..fe7f3e945481 100644
--- a/drivers/perf/arm-cmn.c
+++ b/drivers/perf/arm-cmn.c
@@ -1561,7 +1561,8 @@ static int arm_cmn_probe(struct platform_device *pdev)
err = perf_pmu_register(&cmn->pmu, name, -1);
if (err)
- cpuhp_state_remove_instance(arm_cmn_hp_state, &cmn->cpuhp_node);
+ cpuhp_state_remove_instance_nocalls(arm_cmn_hp_state, &cmn->cpuhp_node);
+
return err;
}
@@ -1572,7 +1573,7 @@ static int arm_cmn_remove(struct platform_device *pdev)
writel_relaxed(0, cmn->dtc[0].base + CMN_DT_DTC_CTL);
perf_pmu_unregister(&cmn->pmu);
- cpuhp_state_remove_instance(arm_cmn_hp_state, &cmn->cpuhp_node);
+ cpuhp_state_remove_instance_nocalls(arm_cmn_hp_state, &cmn->cpuhp_node);
return 0;
}
--
2.25.1
meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0026-perf-arm-cmn-Account-for-NUMA-affinity.patch
+107
View File
@@ -0,0 +1,107 @@
From c4b023618252ad8c03b7ae2cc411718af285bf66 Mon Sep 17 00:00:00 2001
From: Robin Murphy <robin.murphy@arm.com>
Date: Fri, 3 Dec 2021 11:44:51 +0000
Subject: [PATCH 03/14] perf/arm-cmn: Account for NUMA affinity
On a system with multiple CMN meshes, ideally we'd want to access each
PMU from within its own mesh, rather than with a long CML round-trip,
wherever feasible. Since such a system is likely to be presented as
multiple NUMA nodes, let's also hope a proximity domain is specified
for each CMN programming interface, and use that to guide our choice
of IRQ affinity to favour a node-local CPU where possible.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/32438b0d016e0649d882d47d30ac2000484287b9.1638530442.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Upstream-Status: Backport [https://lore.kernel.org/r/32438b0d016e0649d882d47d30ac2000484287b9.1638530442.git.robin.murphy@arm.com]
Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/arm-cmn.c | 51 +++++++++++++++++++++++++++++++-----------
1 file changed, 38 insertions(+), 13 deletions(-)
diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c
index fe7f3e945481..2146d1c0103f 100644
--- a/drivers/perf/arm-cmn.c
+++ b/drivers/perf/arm-cmn.c
@@ -1147,23 +1147,47 @@ static int arm_cmn_commit_txn(struct pmu *pmu)
return 0;
}
-static int arm_cmn_pmu_offline_cpu(unsigned int cpu, struct hlist_node *node)
+static void arm_cmn_migrate(struct arm_cmn *cmn, unsigned int cpu)
+{
+ unsigned int i;
+
+ perf_pmu_migrate_context(&cmn->pmu, cmn->cpu, cpu);
+ for (i = 0; i < cmn->num_dtcs; i++)
+ irq_set_affinity(cmn->dtc[i].irq, cpumask_of(cpu));
+ cmn->cpu = cpu;
+}
+
+static int arm_cmn_pmu_online_cpu(unsigned int cpu, struct hlist_node *cpuhp_node)
{
struct arm_cmn *cmn;
- unsigned int i, target;
+ int node;
- cmn = hlist_entry_safe(node, struct arm_cmn, cpuhp_node);
- if (cpu != cmn->cpu)
- return 0;
+ cmn = hlist_entry_safe(cpuhp_node, struct arm_cmn, cpuhp_node);
+ node = dev_to_node(cmn->dev);
+ if (node != NUMA_NO_NODE && cpu_to_node(cmn->cpu) != node && cpu_to_node(cpu) == node)
+ arm_cmn_migrate(cmn, cpu);
+ return 0;
+}
+
+static int arm_cmn_pmu_offline_cpu(unsigned int cpu, struct hlist_node *cpuhp_node)
+{
+ struct arm_cmn *cmn;
+ unsigned int target;
+ int node;
+ cpumask_t mask;
- target = cpumask_any_but(cpu_online_mask, cpu);
- if (target >= nr_cpu_ids)
+ cmn = hlist_entry_safe(cpuhp_node, struct arm_cmn, cpuhp_node);
+ if (cpu != cmn->cpu)
return 0;
- perf_pmu_migrate_context(&cmn->pmu, cpu, target);
- for (i = 0; i < cmn->num_dtcs; i++)
- irq_set_affinity(cmn->dtc[i].irq, cpumask_of(target));
- cmn->cpu = target;
+ node = dev_to_node(cmn->dev);
+ if (cpumask_and(&mask, cpumask_of_node(node), cpu_online_mask) &&
+ cpumask_andnot(&mask, &mask, cpumask_of(cpu)))
+ target = cpumask_any(&mask);
+ else
+ target = cpumask_any_but(cpu_online_mask, cpu);
+ if (target < nr_cpu_ids)
+ arm_cmn_migrate(cmn, target);
return 0;
}
@@ -1532,7 +1556,7 @@ static int arm_cmn_probe(struct platform_device *pdev)
if (err)
return err;
- cmn->cpu = raw_smp_processor_id();
+ cmn->cpu = cpumask_local_spread(0, dev_to_node(cmn->dev));
cmn->pmu = (struct pmu) {
.module = THIS_MODULE,
.attr_groups = arm_cmn_attr_groups,
@@ -1608,7 +1632,8 @@ static int __init arm_cmn_init(void)
int ret;
ret = cpuhp_setup_state_multi(CPUHP_AP_ONLINE_DYN,
- "perf/arm/cmn:online", NULL,
+ "perf/arm/cmn:online",
+ arm_cmn_pmu_online_cpu,
arm_cmn_pmu_offline_cpu);
if (ret < 0)
return ret;
--
2.25.1
meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0027-perf-arm-cmn-Drop-compile-test-restriction.patch
+89
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@@ -0,0 +1,89 @@
From c3b11ad7a7e3e154a17f36c6768deab9227e28de Mon Sep 17 00:00:00 2001
From: Robin Murphy <robin.murphy@arm.com>
Date: Fri, 3 Dec 2021 11:44:52 +0000
Subject: [PATCH 04/14] perf/arm-cmn: Drop compile-test restriction
Although CMN is currently (and overwhelmingly likely to remain) deployed
in arm64-only (modulo userspace) systems, the 64-bit "dependency" for
compile-testing was just laziness due to heavy reliance on readq/writeq
accessors. Since we only need one extra include for robustness in that
regard, let's pull that in, widen the compile-test coverage, and fix up
the smattering of type laziness that that brings to light.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/baee9ee0d0bdad8aaeb70f5a4b98d8fd4b1f5786.1638530442.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Upstream-Status: Backport [https://lore.kernel.org/r/baee9ee0d0bdad8aaeb70f5a4b98d8fd4b1f5786.1638530442.git.robin.murphy@arm.com]
Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/Kconfig | 2 +-
drivers/perf/arm-cmn.c | 25 +++++++++++++------------
2 files changed, 14 insertions(+), 13 deletions(-)
diff --git a/drivers/perf/Kconfig b/drivers/perf/Kconfig
index 130327ff0b0e..828a042d6a07 100644
--- a/drivers/perf/Kconfig
+++ b/drivers/perf/Kconfig
@@ -43,7 +43,7 @@ config ARM_CCN
config ARM_CMN
tristate "Arm CMN-600 PMU support"
- depends on ARM64 || (COMPILE_TEST && 64BIT)
+ depends on ARM64 || COMPILE_TEST
help
Support for PMU events monitoring on the Arm CMN-600 Coherent Mesh
Network interconnect.
diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c
index 2146d1c0103f..e9af79b5f3de 100644
--- a/drivers/perf/arm-cmn.c
+++ b/drivers/perf/arm-cmn.c
@@ -7,6 +7,7 @@
#include <linux/bitops.h>
#include <linux/interrupt.h>
#include <linux/io.h>
+#include <linux/io-64-nonatomic-lo-hi.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/module.h>
@@ -122,11 +123,11 @@
/* Event attributes */
-#define CMN_CONFIG_TYPE GENMASK(15, 0)
-#define CMN_CONFIG_EVENTID GENMASK(23, 16)
-#define CMN_CONFIG_OCCUPID GENMASK(27, 24)
-#define CMN_CONFIG_BYNODEID BIT(31)
-#define CMN_CONFIG_NODEID GENMASK(47, 32)
+#define CMN_CONFIG_TYPE GENMASK_ULL(15, 0)
+#define CMN_CONFIG_EVENTID GENMASK_ULL(23, 16)
+#define CMN_CONFIG_OCCUPID GENMASK_ULL(27, 24)
+#define CMN_CONFIG_BYNODEID BIT_ULL(31)
+#define CMN_CONFIG_NODEID GENMASK_ULL(47, 32)
#define CMN_EVENT_TYPE(event) FIELD_GET(CMN_CONFIG_TYPE, (event)->attr.config)
#define CMN_EVENT_EVENTID(event) FIELD_GET(CMN_CONFIG_EVENTID, (event)->attr.config)
@@ -134,13 +135,13 @@
#define CMN_EVENT_BYNODEID(event) FIELD_GET(CMN_CONFIG_BYNODEID, (event)->attr.config)
#define CMN_EVENT_NODEID(event) FIELD_GET(CMN_CONFIG_NODEID, (event)->attr.config)
-#define CMN_CONFIG_WP_COMBINE GENMASK(27, 24)
-#define CMN_CONFIG_WP_DEV_SEL BIT(48)
-#define CMN_CONFIG_WP_CHN_SEL GENMASK(50, 49)
-#define CMN_CONFIG_WP_GRP BIT(52)
-#define CMN_CONFIG_WP_EXCLUSIVE BIT(53)
-#define CMN_CONFIG1_WP_VAL GENMASK(63, 0)
-#define CMN_CONFIG2_WP_MASK GENMASK(63, 0)
+#define CMN_CONFIG_WP_COMBINE GENMASK_ULL(27, 24)
+#define CMN_CONFIG_WP_DEV_SEL BIT_ULL(48)
+#define CMN_CONFIG_WP_CHN_SEL GENMASK_ULL(50, 49)
+#define CMN_CONFIG_WP_GRP BIT_ULL(52)
+#define CMN_CONFIG_WP_EXCLUSIVE BIT_ULL(53)
+#define CMN_CONFIG1_WP_VAL GENMASK_ULL(63, 0)
+#define CMN_CONFIG2_WP_MASK GENMASK_ULL(63, 0)
#define CMN_EVENT_WP_COMBINE(event) FIELD_GET(CMN_CONFIG_WP_COMBINE, (event)->attr.config)
#define CMN_EVENT_WP_DEV_SEL(event) FIELD_GET(CMN_CONFIG_WP_DEV_SEL, (event)->attr.config)
--
2.25.1
meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0028-perf-arm-cmn-Refactor-node-ID-handling.patch
+155
View File
@@ -0,0 +1,155 @@
From 4f4a4cd7c79396fa72870ff712d15e82ebff80cf Mon Sep 17 00:00:00 2001
From: Robin Murphy <robin.murphy@arm.com>
Date: Fri, 3 Dec 2021 11:44:53 +0000
Subject: [PATCH 05/14] perf/arm-cmn: Refactor node ID handling
Add a bit more abstraction for the places where we decompose node IDs.
This will help keep things nice and manageable when we come to add yet
more variables which affect the node ID format. Also use the opportunity
to move the rest of the low-level node management helpers back up to the
logical place they were meant to be - how they ended up buried right in
the middle of the event-related definitions is somewhat of a mystery...
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/a2242a8c3c96056c13a04ae87bf2047e5e64d2d9.1638530442.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Upstream-Status: Backport [https://lore.kernel.org/r/a2242a8c3c96056c13a04ae87bf2047e5e64d2d9.1638530442.git.robin.murphy@arm.com]
Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/arm-cmn.c | 94 +++++++++++++++++++++++++-----------------
1 file changed, 56 insertions(+), 38 deletions(-)
diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c
index e9af79b5f3de..cee301fe0f7e 100644
--- a/drivers/perf/arm-cmn.c
+++ b/drivers/perf/arm-cmn.c
@@ -255,6 +255,58 @@ struct arm_cmn {
static int arm_cmn_hp_state;
+struct arm_cmn_nodeid {
+ u8 x;
+ u8 y;
+ u8 port;
+ u8 dev;
+};
+
+static int arm_cmn_xyidbits(const struct arm_cmn *cmn)
+{
+ int dim = max(cmn->mesh_x, cmn->mesh_y);
+
+ return dim > 4 ? 3 : 2;
+}
+
+static struct arm_cmn_nodeid arm_cmn_nid(const struct arm_cmn *cmn, u16 id)
+{
+ struct arm_cmn_nodeid nid;
+ int bits = arm_cmn_xyidbits(cmn);
+
+ nid.x = CMN_NODEID_X(id, bits);
+ nid.y = CMN_NODEID_Y(id, bits);
+ nid.port = CMN_NODEID_PID(id);
+ nid.dev = CMN_NODEID_DEVID(id);
+
+ return nid;
+}
+
+static void arm_cmn_init_node_to_xp(const struct arm_cmn *cmn,
+ struct arm_cmn_node *dn)
+{
+ struct arm_cmn_nodeid nid = arm_cmn_nid(cmn, dn->id);
+ int xp_idx = cmn->mesh_x * nid.y + nid.x;
+
+ dn->to_xp = (cmn->xps + xp_idx) - dn;
+}
+
+static struct arm_cmn_node *arm_cmn_node_to_xp(struct arm_cmn_node *dn)
+{
+ return dn->type == CMN_TYPE_XP ? dn : dn + dn->to_xp;
+}
+
+static struct arm_cmn_node *arm_cmn_node(const struct arm_cmn *cmn,
+ enum cmn_node_type type)
+{
+ int i;
+
+ for (i = 0; i < cmn->num_dns; i++)
+ if (cmn->dns[i].type == type)
+ return &cmn->dns[i];
+ return NULL;
+}
+
struct arm_cmn_hw_event {
struct arm_cmn_node *dn;
u64 dtm_idx[2];
@@ -295,38 +347,6 @@ struct arm_cmn_format_attr {
int config;
};
-static int arm_cmn_xyidbits(const struct arm_cmn *cmn)
-{
- return cmn->mesh_x > 4 || cmn->mesh_y > 4 ? 3 : 2;
-}
-
-static void arm_cmn_init_node_to_xp(const struct arm_cmn *cmn,
- struct arm_cmn_node *dn)
-{
- int bits = arm_cmn_xyidbits(cmn);
- int x = CMN_NODEID_X(dn->id, bits);
- int y = CMN_NODEID_Y(dn->id, bits);
- int xp_idx = cmn->mesh_x * y + x;
-
- dn->to_xp = (cmn->xps + xp_idx) - dn;
-}
-
-static struct arm_cmn_node *arm_cmn_node_to_xp(struct arm_cmn_node *dn)
-{
- return dn->type == CMN_TYPE_XP ? dn : dn + dn->to_xp;
-}
-
-static struct arm_cmn_node *arm_cmn_node(const struct arm_cmn *cmn,
- enum cmn_node_type type)
-{
- int i;
-
- for (i = 0; i < cmn->num_dns; i++)
- if (cmn->dns[i].type == type)
- return &cmn->dns[i];
- return NULL;
-}
-
#define CMN_EVENT_ATTR(_name, _type, _eventid, _occupid) \
(&((struct arm_cmn_event_attr[]) {{ \
.attr = __ATTR(_name, 0444, arm_cmn_event_show, NULL), \
@@ -966,11 +986,10 @@ static int arm_cmn_event_init(struct perf_event *event)
}
if (!hw->num_dns) {
- int bits = arm_cmn_xyidbits(cmn);
+ struct arm_cmn_nodeid nid = arm_cmn_nid(cmn, nodeid);
dev_dbg(cmn->dev, "invalid node 0x%x (%d,%d,%d,%d) type 0x%x\n",
- nodeid, CMN_NODEID_X(nodeid, bits), CMN_NODEID_Y(nodeid, bits),
- CMN_NODEID_PID(nodeid), CMN_NODEID_DEVID(nodeid), type);
+ nodeid, nid.x, nid.y, nid.port, nid.dev, type);
return -EINVAL;
}
/*
@@ -1068,11 +1087,10 @@ static int arm_cmn_event_add(struct perf_event *event, int flags)
dn->wp_event[wp_idx] = dtc_idx;
writel_relaxed(cfg, dn->pmu_base + CMN_DTM_WPn_CONFIG(wp_idx));
} else {
- unsigned int port = CMN_NODEID_PID(dn->id);
- unsigned int dev = CMN_NODEID_DEVID(dn->id);
+ struct arm_cmn_nodeid nid = arm_cmn_nid(cmn, dn->id);
input_sel = CMN__PMEVCNT0_INPUT_SEL_DEV + dtm_idx +
- (port << 4) + (dev << 2);
+ (nid.port << 4) + (nid.dev << 2);
if (arm_cmn_is_occup_event(type, CMN_EVENT_EVENTID(event))) {
int occupid = CMN_EVENT_OCCUPID(event);
--
2.25.1
meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0029-perf-arm-cmn-Streamline-node-iteration.patch
+118
View File
@@ -0,0 +1,118 @@
From 1b8e1ce0ebaa02c4cb7fa615b28c6905b0884e41 Mon Sep 17 00:00:00 2001
From: Robin Murphy <robin.murphy@arm.com>
Date: Fri, 3 Dec 2021 11:44:54 +0000
Subject: [PATCH 06/14] perf/arm-cmn: Streamline node iteration
Refactor the places where we scan through the set of nodes to switch
from explicit array indexing to pointer-based iteration. This leads to
slightly simpler object code, but also makes the source less dense and
more pleasant for further development. It also unearths an almost-bug
in arm_cmn_event_init() where we've been depending on the "array index"
of NULL relative to cmn->dns being a sufficiently large number, yuck.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/ee0c9eda9a643f46001ac43aadf3f0b1fd5660dd.1638530442.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Upstream-Status: Backport [https://lore.kernel.org/r/ee0c9eda9a643f46001ac43aadf3f0b1fd5660dd.1638530442.git.robin.murphy@arm.com]
Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/arm-cmn.c | 33 ++++++++++++++++++++-------------
1 file changed, 20 insertions(+), 13 deletions(-)
diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c
index cee301fe0f7e..77ebed7fae08 100644
--- a/drivers/perf/arm-cmn.c
+++ b/drivers/perf/arm-cmn.c
@@ -299,11 +299,11 @@ static struct arm_cmn_node *arm_cmn_node_to_xp(struct arm_cmn_node *dn)
static struct arm_cmn_node *arm_cmn_node(const struct arm_cmn *cmn,
enum cmn_node_type type)
{
- int i;
+ struct arm_cmn_node *dn;
- for (i = 0; i < cmn->num_dns; i++)
- if (cmn->dns[i].type == type)
- return &cmn->dns[i];
+ for (dn = cmn->dns; dn->type; dn++)
+ if (dn->type == type)
+ return dn;
return NULL;
}
@@ -941,8 +941,8 @@ static int arm_cmn_event_init(struct perf_event *event)
{
struct arm_cmn *cmn = to_cmn(event->pmu);
struct arm_cmn_hw_event *hw = to_cmn_hw(event);
+ struct arm_cmn_node *dn;
enum cmn_node_type type;
- unsigned int i;
bool bynodeid;
u16 nodeid, eventid;
@@ -974,10 +974,12 @@ static int arm_cmn_event_init(struct perf_event *event)
nodeid = CMN_EVENT_NODEID(event);
hw->dn = arm_cmn_node(cmn, type);
- for (i = hw->dn - cmn->dns; i < cmn->num_dns && cmn->dns[i].type == type; i++) {
+ if (!hw->dn)
+ return -EINVAL;
+ for (dn = hw->dn; dn->type == type; dn++) {
if (!bynodeid) {
hw->num_dns++;
- } else if (cmn->dns[i].id != nodeid) {
+ } else if (dn->id != nodeid) {
hw->dn++;
} else {
hw->num_dns = 1;
@@ -1332,7 +1334,7 @@ static int arm_cmn_init_dtcs(struct arm_cmn *cmn)
cmn->xps = arm_cmn_node(cmn, CMN_TYPE_XP);
- for (dn = cmn->dns; dn < cmn->dns + cmn->num_dns; dn++) {
+ for (dn = cmn->dns; dn->type; dn++) {
if (dn->type != CMN_TYPE_XP)
arm_cmn_init_node_to_xp(cmn, dn);
else if (cmn->num_dtcs == 1)
@@ -1382,6 +1384,7 @@ static int arm_cmn_discover(struct arm_cmn *cmn, unsigned int rgn_offset)
u32 xp_offset[CMN_MAX_XPS];
u64 reg;
int i, j;
+ size_t sz;
cfg_region = cmn->base + rgn_offset;
reg = readl_relaxed(cfg_region + CMN_CFGM_PERIPH_ID_2);
@@ -1408,14 +1411,13 @@ static int arm_cmn_discover(struct arm_cmn *cmn, unsigned int rgn_offset)
cmn->num_dns += FIELD_GET(CMN_CI_CHILD_COUNT, reg);
}
- /* Cheeky +1 to help terminate pointer-based iteration */
- cmn->dns = devm_kcalloc(cmn->dev, cmn->num_dns + 1,
- sizeof(*cmn->dns), GFP_KERNEL);
- if (!cmn->dns)
+ /* Cheeky +1 to help terminate pointer-based iteration later */
+ dn = devm_kcalloc(cmn->dev, cmn->num_dns + 1, sizeof(*dn), GFP_KERNEL);
+ if (!dn)
return -ENOMEM;
/* Pass 2: now we can actually populate the nodes */
- dn = cmn->dns;
+ cmn->dns = dn;
for (i = 0; i < cmn->num_xps; i++) {
void __iomem *xp_region = cmn->base + xp_offset[i];
struct arm_cmn_node *xp = dn++;
@@ -1484,6 +1486,11 @@ static int arm_cmn_discover(struct arm_cmn *cmn, unsigned int rgn_offset)
/* Correct for any nodes we skipped */
cmn->num_dns = dn - cmn->dns;
+ sz = (void *)(dn + 1) - (void *)cmn->dns;
+ dn = devm_krealloc(cmn->dev, cmn->dns, sz, GFP_KERNEL);
+ if (dn)
+ cmn->dns = dn;
+
/*
* If mesh_x wasn't set during discovery then we never saw
* an XP at (0,1), thus we must have an Nx1 configuration.
--
2.25.1
meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0030-drivers-perf-arm-cmn-Add-space-after.patch
+34
View File
@@ -0,0 +1,34 @@
From c3e137a2231f434f623593b6951c7575d22e1cdb Mon Sep 17 00:00:00 2001
From: Junhao He <hejunhao2@hisilicon.com>
Date: Tue, 11 May 2021 20:27:33 +0800
Subject: [PATCH 07/14] drivers/perf: arm-cmn: Add space after ','
Fix a warning from checkpatch.pl.
ERROR: space required after that ',' (ctx:VxV)
Signed-off-by: Junhao He <hejunhao2@hisilicon.com>
Signed-off-by: Jay Fang <f.fangjian@huawei.com>
Upstream-Status: Backport [https://lore.kernel.org/all/1620736054-58412-4-git-send-email-f.fangjian@huawei.com]
Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/arm-cmn.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c
index 77ebed7fae08..e9f27f7776a2 100644
--- a/drivers/perf/arm-cmn.c
+++ b/drivers/perf/arm-cmn.c
@@ -32,7 +32,7 @@
#define CMN_CI_CHILD_COUNT GENMASK_ULL(15, 0)
#define CMN_CI_CHILD_PTR_OFFSET GENMASK_ULL(31, 16)
-#define CMN_CHILD_NODE_ADDR GENMASK(27,0)
+#define CMN_CHILD_NODE_ADDR GENMASK(27, 0)
#define CMN_CHILD_NODE_EXTERNAL BIT(31)
#define CMN_ADDR_NODE_PTR GENMASK(27, 14)
--
2.25.1
meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0031-perf-arm-cmn-Refactor-DTM-handling.patch
+406
View File
@@ -0,0 +1,406 @@
From 79bbc3eeee54b2e039dd4822e4a643e71adfbb04 Mon Sep 17 00:00:00 2001
From: Robin Murphy <robin.murphy@arm.com>
Date: Fri, 3 Dec 2021 11:44:55 +0000
Subject: [PATCH 08/14] perf/arm-cmn: Refactor DTM handling
Untangle DTMs from XPs into a dedicated abstraction. This helps make
things a little more obvious and robust, but primarily paves the way
for further development where new IPs can grow extra DTMs per XP.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/9cca18b1b98f482df7f1aaf3d3213e7f39500423.1638530442.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Upstream-Status: Backport [https://lore.kernel.org/r/9cca18b1b98f482df7f1aaf3d3213e7f39500423.1638530442.git.robin.murphy@arm.com]
Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/arm-cmn.c | 169 +++++++++++++++++++++--------------------
1 file changed, 87 insertions(+), 82 deletions(-)
diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c
index e9f27f7776a2..2ae3e92690a7 100644
--- a/drivers/perf/arm-cmn.c
+++ b/drivers/perf/arm-cmn.c
@@ -35,14 +35,9 @@
#define CMN_CHILD_NODE_ADDR GENMASK(27, 0)
#define CMN_CHILD_NODE_EXTERNAL BIT(31)
-#define CMN_ADDR_NODE_PTR GENMASK(27, 14)
-
-#define CMN_NODE_PTR_DEVID(ptr) (((ptr) >> 2) & 3)
-#define CMN_NODE_PTR_PID(ptr) ((ptr) & 1)
-#define CMN_NODE_PTR_X(ptr, bits) ((ptr) >> (6 + (bits)))
-#define CMN_NODE_PTR_Y(ptr, bits) (((ptr) >> 6) & ((1U << (bits)) - 1))
-
-#define CMN_MAX_XPS (8 * 8)
+#define CMN_MAX_DIMENSION 8
+#define CMN_MAX_XPS (CMN_MAX_DIMENSION * CMN_MAX_DIMENSION)
+#define CMN_MAX_DTMS CMN_MAX_XPS
/* The CFG node has one other useful purpose */
#define CMN_CFGM_PERIPH_ID_2 0x0010
@@ -190,32 +185,32 @@ struct arm_cmn_node {
u16 id, logid;
enum cmn_node_type type;
+ int dtm;
union {
- /* Device node */
+ /* DN/HN-F/CXHA */
struct {
- int to_xp;
- /* DN/HN-F/CXHA */
- unsigned int occupid_val;
- unsigned int occupid_count;
+ u8 occupid_val;
+ u8 occupid_count;
};
/* XP */
- struct {
- int dtc;
- u32 pmu_config_low;
- union {
- u8 input_sel[4];
- __le32 pmu_config_high;
- };
- s8 wp_event[4];
- };
+ int dtc;
};
-
union {
u8 event[4];
__le32 event_sel;
};
};
+struct arm_cmn_dtm {
+ void __iomem *base;
+ u32 pmu_config_low;
+ union {
+ u8 input_sel[4];
+ __le32 pmu_config_high;
+ };
+ s8 wp_event[4];
+};
+
struct arm_cmn_dtc {
void __iomem *base;
int irq;
@@ -241,6 +236,7 @@ struct arm_cmn {
struct arm_cmn_node *xps;
struct arm_cmn_node *dns;
+ struct arm_cmn_dtm *dtms;
struct arm_cmn_dtc *dtc;
unsigned int num_dtcs;
@@ -282,20 +278,14 @@ static struct arm_cmn_nodeid arm_cmn_nid(const struct arm_cmn *cmn, u16 id)
return nid;
}
-static void arm_cmn_init_node_to_xp(const struct arm_cmn *cmn,
- struct arm_cmn_node *dn)
+static struct arm_cmn_node *arm_cmn_node_to_xp(const struct arm_cmn *cmn,
+ const struct arm_cmn_node *dn)
{
struct arm_cmn_nodeid nid = arm_cmn_nid(cmn, dn->id);
int xp_idx = cmn->mesh_x * nid.y + nid.x;
- dn->to_xp = (cmn->xps + xp_idx) - dn;
-}
-
-static struct arm_cmn_node *arm_cmn_node_to_xp(struct arm_cmn_node *dn)
-{
- return dn->type == CMN_TYPE_XP ? dn : dn + dn->to_xp;
+ return cmn->xps + xp_idx;
}
-
static struct arm_cmn_node *arm_cmn_node(const struct arm_cmn *cmn,
enum cmn_node_type type)
{
@@ -706,9 +696,9 @@ static u64 arm_cmn_read_dtm(struct arm_cmn *cmn, struct arm_cmn_hw_event *hw,
offset = snapshot ? CMN_DTM_PMEVCNTSR : CMN_DTM_PMEVCNT;
for_each_hw_dn(hw, dn, i) {
- struct arm_cmn_node *xp = arm_cmn_node_to_xp(dn);
+ struct arm_cmn_dtm *dtm = &cmn->dtms[dn->dtm];
int dtm_idx = arm_cmn_get_index(hw->dtm_idx, i);
- u64 reg = readq_relaxed(xp->pmu_base + offset);
+ u64 reg = readq_relaxed(dtm->base + offset);
u16 dtm_count = reg >> (dtm_idx * 16);
count += dtm_count;
@@ -835,9 +825,9 @@ static void arm_cmn_event_stop(struct perf_event *event, int flags)
}
struct arm_cmn_val {
- u8 dtm_count[CMN_MAX_XPS];
- u8 occupid[CMN_MAX_XPS];
- u8 wp[CMN_MAX_XPS][4];
+ u8 dtm_count[CMN_MAX_DTMS];
+ u8 occupid[CMN_MAX_DTMS];
+ u8 wp[CMN_MAX_DTMS][4];
int dtc_count;
bool cycles;
};
@@ -866,16 +856,16 @@ static void arm_cmn_val_add_event(struct arm_cmn_val *val, struct perf_event *ev
occupid = 0;
for_each_hw_dn(hw, dn, i) {
- int wp_idx, xp = arm_cmn_node_to_xp(dn)->logid;
+ int wp_idx, dtm = dn->dtm;
- val->dtm_count[xp]++;
- val->occupid[xp] = occupid;
+ val->dtm_count[dtm]++;
+ val->occupid[dtm] = occupid;
if (type != CMN_TYPE_WP)
continue;
wp_idx = arm_cmn_wp_idx(event);
- val->wp[xp][wp_idx] = CMN_EVENT_WP_COMBINE(event) + 1;
+ val->wp[dtm][wp_idx] = CMN_EVENT_WP_COMBINE(event) + 1;
}
}
@@ -914,22 +904,22 @@ static int arm_cmn_validate_group(struct perf_event *event)
occupid = 0;
for_each_hw_dn(hw, dn, i) {
- int wp_idx, wp_cmb, xp = arm_cmn_node_to_xp(dn)->logid;
+ int wp_idx, wp_cmb, dtm = dn->dtm;
- if (val.dtm_count[xp] == CMN_DTM_NUM_COUNTERS)
+ if (val.dtm_count[dtm] == CMN_DTM_NUM_COUNTERS)
return -EINVAL;
- if (occupid && val.occupid[xp] && occupid != val.occupid[xp])
+ if (occupid && val.occupid[dtm] && occupid != val.occupid[dtm])
return -EINVAL;
if (type != CMN_TYPE_WP)
continue;
wp_idx = arm_cmn_wp_idx(event);
- if (val.wp[xp][wp_idx])
+ if (val.wp[dtm][wp_idx])
return -EINVAL;
- wp_cmb = val.wp[xp][wp_idx ^ 1];
+ wp_cmb = val.wp[dtm][wp_idx ^ 1];
if (wp_cmb && wp_cmb != CMN_EVENT_WP_COMBINE(event) + 1)
return -EINVAL;
}
@@ -1010,17 +1000,17 @@ static void arm_cmn_event_clear(struct arm_cmn *cmn, struct perf_event *event,
enum cmn_node_type type = CMN_EVENT_TYPE(event);
while (i--) {
- struct arm_cmn_node *xp = arm_cmn_node_to_xp(hw->dn + i);
+ struct arm_cmn_dtm *dtm = &cmn->dtms[hw->dn[i].dtm];
unsigned int dtm_idx = arm_cmn_get_index(hw->dtm_idx, i);
if (type == CMN_TYPE_WP)
- hw->dn[i].wp_event[arm_cmn_wp_idx(event)] = -1;
+ dtm->wp_event[arm_cmn_wp_idx(event)] = -1;
if (arm_cmn_is_occup_event(type, CMN_EVENT_EVENTID(event)))
hw->dn[i].occupid_count--;
- xp->pmu_config_low &= ~CMN__PMEVCNT_PAIRED(dtm_idx);
- writel_relaxed(xp->pmu_config_low, xp->pmu_base + CMN_DTM_PMU_CONFIG);
+ dtm->pmu_config_low &= ~CMN__PMEVCNT_PAIRED(dtm_idx);
+ writel_relaxed(dtm->pmu_config_low, dtm->base + CMN_DTM_PMU_CONFIG);
}
memset(hw->dtm_idx, 0, sizeof(hw->dtm_idx));
@@ -1062,12 +1052,12 @@ static int arm_cmn_event_add(struct perf_event *event, int flags)
/* ...then the local counters to feed it. */
for_each_hw_dn(hw, dn, i) {
- struct arm_cmn_node *xp = arm_cmn_node_to_xp(dn);
+ struct arm_cmn_dtm *dtm = &cmn->dtms[dn->dtm];
unsigned int dtm_idx, shift;
u64 reg;
dtm_idx = 0;
- while (xp->pmu_config_low & CMN__PMEVCNT_PAIRED(dtm_idx))
+ while (dtm->pmu_config_low & CMN__PMEVCNT_PAIRED(dtm_idx))
if (++dtm_idx == CMN_DTM_NUM_COUNTERS)
goto free_dtms;
@@ -1077,17 +1067,17 @@ static int arm_cmn_event_add(struct perf_event *event, int flags)
int tmp, wp_idx = arm_cmn_wp_idx(event);
u32 cfg = arm_cmn_wp_config(event);
- if (dn->wp_event[wp_idx] >= 0)
+ if (dtm->wp_event[wp_idx] >= 0)
goto free_dtms;
- tmp = dn->wp_event[wp_idx ^ 1];
+ tmp = dtm->wp_event[wp_idx ^ 1];
if (tmp >= 0 && CMN_EVENT_WP_COMBINE(event) !=
CMN_EVENT_WP_COMBINE(dtc->counters[tmp]))
goto free_dtms;
input_sel = CMN__PMEVCNT0_INPUT_SEL_WP + wp_idx;
- dn->wp_event[wp_idx] = dtc_idx;
- writel_relaxed(cfg, dn->pmu_base + CMN_DTM_WPn_CONFIG(wp_idx));
+ dtm->wp_event[wp_idx] = dtc_idx;
+ writel_relaxed(cfg, dtm->base + CMN_DTM_WPn_CONFIG(wp_idx));
} else {
struct arm_cmn_nodeid nid = arm_cmn_nid(cmn, dn->id);
@@ -1095,7 +1085,7 @@ static int arm_cmn_event_add(struct perf_event *event, int flags)
(nid.port << 4) + (nid.dev << 2);
if (arm_cmn_is_occup_event(type, CMN_EVENT_EVENTID(event))) {
- int occupid = CMN_EVENT_OCCUPID(event);
+ u8 occupid = CMN_EVENT_OCCUPID(event);
if (dn->occupid_count == 0) {
dn->occupid_val = occupid;
@@ -1110,13 +1100,13 @@ static int arm_cmn_event_add(struct perf_event *event, int flags)
arm_cmn_set_index(hw->dtm_idx, i, dtm_idx);
- xp->input_sel[dtm_idx] = input_sel;
+ dtm->input_sel[dtm_idx] = input_sel;
shift = CMN__PMEVCNTn_GLOBAL_NUM_SHIFT(dtm_idx);
- xp->pmu_config_low &= ~(CMN__PMEVCNT0_GLOBAL_NUM << shift);
- xp->pmu_config_low |= FIELD_PREP(CMN__PMEVCNT0_GLOBAL_NUM, dtc_idx) << shift;
- xp->pmu_config_low |= CMN__PMEVCNT_PAIRED(dtm_idx);
- reg = (u64)le32_to_cpu(xp->pmu_config_high) << 32 | xp->pmu_config_low;
- writeq_relaxed(reg, xp->pmu_base + CMN_DTM_PMU_CONFIG);
+ dtm->pmu_config_low &= ~(CMN__PMEVCNT0_GLOBAL_NUM << shift);
+ dtm->pmu_config_low |= FIELD_PREP(CMN__PMEVCNT0_GLOBAL_NUM, dtc_idx) << shift;
+ dtm->pmu_config_low |= CMN__PMEVCNT_PAIRED(dtm_idx);
+ reg = (u64)le32_to_cpu(dtm->pmu_config_high) << 32 | dtm->pmu_config_low;
+ writeq_relaxed(reg, dtm->base + CMN_DTM_PMU_CONFIG);
}
/* Go go go! */
@@ -1276,23 +1266,22 @@ static int arm_cmn_init_irqs(struct arm_cmn *cmn)
return 0;
}
-static void arm_cmn_init_dtm(struct arm_cmn_node *xp)
+static void arm_cmn_init_dtm(struct arm_cmn_dtm *dtm, struct arm_cmn_node *xp)
{
int i;
+ dtm->base = xp->pmu_base;
+ dtm->pmu_config_low = CMN_DTM_PMU_CONFIG_PMU_EN;
for (i = 0; i < 4; i++) {
- xp->wp_event[i] = -1;
- writeq_relaxed(0, xp->pmu_base + CMN_DTM_WPn_MASK(i));
- writeq_relaxed(~0ULL, xp->pmu_base + CMN_DTM_WPn_VAL(i));
+ dtm->wp_event[i] = -1;
+ writeq_relaxed(0, dtm->base + CMN_DTM_WPn_MASK(i));
+ writeq_relaxed(~0ULL, dtm->base + CMN_DTM_WPn_VAL(i));
}
- xp->pmu_config_low = CMN_DTM_PMU_CONFIG_PMU_EN;
- xp->dtc = -1;
}
static int arm_cmn_init_dtc(struct arm_cmn *cmn, struct arm_cmn_node *dn, int idx)
{
struct arm_cmn_dtc *dtc = cmn->dtc + idx;
- struct arm_cmn_node *xp;
dtc->base = dn->pmu_base - CMN_PMU_OFFSET;
dtc->irq = platform_get_irq(to_platform_device(cmn->dev), idx);
@@ -1303,10 +1292,6 @@ static int arm_cmn_init_dtc(struct arm_cmn *cmn, struct arm_cmn_node *dn, int id
writel_relaxed(0x1ff, dtc->base + CMN_DT_PMOVSR_CLR);
writel_relaxed(CMN_DT_PMCR_OVFL_INTR_EN, dtc->base + CMN_DT_PMCR);
- /* We do at least know that a DTC's XP must be in that DTC's domain */
- xp = arm_cmn_node_to_xp(dn);
- xp->dtc = idx;
-
return 0;
}
@@ -1323,7 +1308,7 @@ static int arm_cmn_node_cmp(const void *a, const void *b)
static int arm_cmn_init_dtcs(struct arm_cmn *cmn)
{
- struct arm_cmn_node *dn;
+ struct arm_cmn_node *dn, *xp;
int dtc_idx = 0;
cmn->dtc = devm_kcalloc(cmn->dev, cmn->num_dtcs, sizeof(cmn->dtc[0]), GFP_KERNEL);
@@ -1335,13 +1320,24 @@ static int arm_cmn_init_dtcs(struct arm_cmn *cmn)
cmn->xps = arm_cmn_node(cmn, CMN_TYPE_XP);
for (dn = cmn->dns; dn->type; dn++) {
- if (dn->type != CMN_TYPE_XP)
- arm_cmn_init_node_to_xp(cmn, dn);
- else if (cmn->num_dtcs == 1)
- dn->dtc = 0;
+ if (dn->type == CMN_TYPE_XP) {
+ if (dn->dtc < 0 && cmn->num_dtcs == 1)
+ dn->dtc = 0;
+ continue;
+ }
- if (dn->type == CMN_TYPE_DTC)
- arm_cmn_init_dtc(cmn, dn, dtc_idx++);
+ xp = arm_cmn_node_to_xp(cmn, dn);
+ dn->dtm = xp->dtm;
+
+ if (dn->type == CMN_TYPE_DTC) {
+ int err;
+ /* We do at least know that a DTC's XP must be in that DTC's domain */
+ if (xp->dtc < 0)
+ xp->dtc = dtc_idx;
+ err = arm_cmn_init_dtc(cmn, dn, dtc_idx++);
+ if (err)
+ return err;
+ }
/* To the PMU, RN-Ds don't add anything over RN-Is, so smoosh them together */
if (dn->type == CMN_TYPE_RND)
@@ -1380,6 +1376,7 @@ static int arm_cmn_discover(struct arm_cmn *cmn, unsigned int rgn_offset)
{
void __iomem *cfg_region;
struct arm_cmn_node cfg, *dn;
+ struct arm_cmn_dtm *dtm;
u16 child_count, child_poff;
u32 xp_offset[CMN_MAX_XPS];
u64 reg;
@@ -1416,14 +1413,18 @@ static int arm_cmn_discover(struct arm_cmn *cmn, unsigned int rgn_offset)
if (!dn)
return -ENOMEM;
+ dtm = devm_kcalloc(cmn->dev, cmn->num_xps, sizeof(*dtm), GFP_KERNEL);
+ if (!dtm)
+ return -ENOMEM;
+
/* Pass 2: now we can actually populate the nodes */
cmn->dns = dn;
+ cmn->dtms = dtm;
for (i = 0; i < cmn->num_xps; i++) {
void __iomem *xp_region = cmn->base + xp_offset[i];
struct arm_cmn_node *xp = dn++;
arm_cmn_init_node_info(cmn, xp_offset[i], xp);
- arm_cmn_init_dtm(xp);
/*
* Thanks to the order in which XP logical IDs seem to be
* assigned, we can handily infer the mesh X dimension by
@@ -1433,6 +1434,10 @@ static int arm_cmn_discover(struct arm_cmn *cmn, unsigned int rgn_offset)
if (xp->id == (1 << 3))
cmn->mesh_x = xp->logid;
+ xp->dtc = -1;
+ xp->dtm = dtm - cmn->dtms;
+ arm_cmn_init_dtm(dtm++, xp);
+
reg = readq_relaxed(xp_region + CMN_CHILD_INFO);
child_count = FIELD_GET(CMN_CI_CHILD_COUNT, reg);
child_poff = FIELD_GET(CMN_CI_CHILD_PTR_OFFSET, reg);
--
2.25.1
meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0032-perf-arm-cmn-Optimise-DTM-counter-reads.patch
+56
View File
@@ -0,0 +1,56 @@
From a63878c01597e21451c2b3f239cbf0a2fbdeeadf Mon Sep 17 00:00:00 2001
From: Robin Murphy <robin.murphy@arm.com>
Date: Fri, 3 Dec 2021 11:44:56 +0000
Subject: [PATCH 09/14] perf/arm-cmn: Optimise DTM counter reads
When multiple nodes of the same type are connected to the same XP
(particularly in CAL configurations), it seems that they are likely
to be consecutive in logical ID. Therefore, we're likely to gain a
small benefit from an easy tweak to optimise out consecutive reads
of the same set of DTM counters for an aggregated event.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/7777d77c2df17693cd3dabb6e268906e15238d82.1638530442.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Upstream-Status: Backport [https://lore.kernel.org/r/7777d77c2df17693cd3dabb6e268906e15238d82.1638530442.git.robin.murphy@arm.com]
Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/arm-cmn.c | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)
diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c
index 2ae3e92690a7..5fa31ebc1fce 100644
--- a/drivers/perf/arm-cmn.c
+++ b/drivers/perf/arm-cmn.c
@@ -690,18 +690,19 @@ static void arm_cmn_pmu_disable(struct pmu *pmu)
static u64 arm_cmn_read_dtm(struct arm_cmn *cmn, struct arm_cmn_hw_event *hw,
bool snapshot)
{
+ struct arm_cmn_dtm *dtm = NULL;
struct arm_cmn_node *dn;
- unsigned int i, offset;
- u64 count = 0;
+ unsigned int i, offset, dtm_idx;
+ u64 reg, count = 0;
offset = snapshot ? CMN_DTM_PMEVCNTSR : CMN_DTM_PMEVCNT;
for_each_hw_dn(hw, dn, i) {
- struct arm_cmn_dtm *dtm = &cmn->dtms[dn->dtm];
- int dtm_idx = arm_cmn_get_index(hw->dtm_idx, i);
- u64 reg = readq_relaxed(dtm->base + offset);
- u16 dtm_count = reg >> (dtm_idx * 16);
-
- count += dtm_count;
+ if (dtm != &cmn->dtms[dn->dtm]) {
+ dtm = &cmn->dtms[dn->dtm];
+ reg = readq_relaxed(dtm->base + offset);
+ }
+ dtm_idx = arm_cmn_get_index(hw->dtm_idx, i);
+ count += (u16)(reg >> (dtm_idx * 16));
}
return count;
}
--
2.25.1
meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0033-perf-arm-cmn-Optimise-DTC-counter-accesses.patch
+111
View File
@@ -0,0 +1,111 @@
From 782b7cd98e6a6b8c5fcd9e20f5c534617b1f04d3 Mon Sep 17 00:00:00 2001
From: Robin Murphy <robin.murphy@arm.com>
Date: Fri, 3 Dec 2021 11:44:57 +0000
Subject: [PATCH 10/14] perf/arm-cmn: Optimise DTC counter accesses
In cases where we do know which DTC domain a node belongs to, we can
skip initialising or reading the global count in DTCs where we know
it won't change. The machinery to achieve that is mostly in place
already, so finish hooking it up by converting the vestigial domain
tracking to propagate suitable bitmaps all the way through to events.
Note that this does not allow allocating such an unused counter to a
different event on that DTC, because that is a flippin' nightmare.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/51d930fd945ef51c81f5889ccca055c302b0a1d0.1638530442.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Upstream-Status: Backport [https://lore.kernel.org/r/51d930fd945ef51c81f5889ccca055c302b0a1d0.1638530442.git.robin.murphy@arm.com]
Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/arm-cmn.c | 29 ++++++++++++-----------------
1 file changed, 12 insertions(+), 17 deletions(-)
diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c
index 5fa31ebc1fce..2204d6500814 100644
--- a/drivers/perf/arm-cmn.c
+++ b/drivers/perf/arm-cmn.c
@@ -193,7 +193,7 @@ struct arm_cmn_node {
u8 occupid_count;
};
/* XP */
- int dtc;
+ u8 dtc;
};
union {
u8 event[4];
@@ -968,14 +968,14 @@ static int arm_cmn_event_init(struct perf_event *event)
if (!hw->dn)
return -EINVAL;
for (dn = hw->dn; dn->type == type; dn++) {
- if (!bynodeid) {
- hw->num_dns++;
- } else if (dn->id != nodeid) {
+ if (bynodeid && dn->id != nodeid) {
hw->dn++;
- } else {
- hw->num_dns = 1;
- break;
+ continue;
}
+ hw->dtcs_used |= arm_cmn_node_to_xp(cmn, dn)->dtc;
+ hw->num_dns++;
+ if (bynodeid)
+ break;
}
if (!hw->num_dns) {
@@ -985,11 +985,6 @@ static int arm_cmn_event_init(struct perf_event *event)
nodeid, nid.x, nid.y, nid.port, nid.dev, type);
return -EINVAL;
}
- /*
- * By assuming events count in all DTC domains, we cunningly avoid
- * needing to know anything about how XPs are assigned to domains.
- */
- hw->dtcs_used = (1U << cmn->num_dtcs) - 1;
return arm_cmn_validate_group(event);
}
@@ -1311,6 +1306,7 @@ static int arm_cmn_init_dtcs(struct arm_cmn *cmn)
{
struct arm_cmn_node *dn, *xp;
int dtc_idx = 0;
+ u8 dtcs_present = (1 << cmn->num_dtcs) - 1;
cmn->dtc = devm_kcalloc(cmn->dev, cmn->num_dtcs, sizeof(cmn->dtc[0]), GFP_KERNEL);
if (!cmn->dtc)
@@ -1322,8 +1318,7 @@ static int arm_cmn_init_dtcs(struct arm_cmn *cmn)
for (dn = cmn->dns; dn->type; dn++) {
if (dn->type == CMN_TYPE_XP) {
- if (dn->dtc < 0 && cmn->num_dtcs == 1)
- dn->dtc = 0;
+ dn->dtc &= dtcs_present;
continue;
}
@@ -1333,8 +1328,8 @@ static int arm_cmn_init_dtcs(struct arm_cmn *cmn)
if (dn->type == CMN_TYPE_DTC) {
int err;
/* We do at least know that a DTC's XP must be in that DTC's domain */
- if (xp->dtc < 0)
- xp->dtc = dtc_idx;
+ if (xp->dtc == 0xf)
+ xp->dtc = 1 << dtc_idx;
err = arm_cmn_init_dtc(cmn, dn, dtc_idx++);
if (err)
return err;
@@ -1435,7 +1430,7 @@ static int arm_cmn_discover(struct arm_cmn *cmn, unsigned int rgn_offset)
if (xp->id == (1 << 3))
cmn->mesh_x = xp->logid;
- xp->dtc = -1;
+ xp->dtc = 0xf;
xp->dtm = dtm - cmn->dtms;
arm_cmn_init_dtm(dtm++, xp);
--
2.25.1
meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0034-perf-arm-cmn-Move-group-validation-data-off-stack.patch
+108
View File
@@ -0,0 +1,108 @@
From d919e8bcbb790018e097cb8a01e7c840dcdb82aa Mon Sep 17 00:00:00 2001
From: Robin Murphy <robin.murphy@arm.com>
Date: Fri, 3 Dec 2021 11:44:58 +0000
Subject: [PATCH 11/14] perf/arm-cmn: Move group validation data off-stack
With the value of CMN_MAX_DTMS increasing significantly, our validation
data structure is set to get quite big. Technically we could pack it at
least twice as densely, since we only need around 19 bits of information
per DTM, but that makes the code even more mind-bogglingly impenetrable,
and even half of "quite big" may still be uncomfortably large for a
stack frame (~1KB). Just move it to an off-stack allocation instead.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/0cabff2e5839ddc0979e757c55515966f65359e4.1638530442.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Upstream-Status: Backport [https://lore.kernel.org/r/0cabff2e5839ddc0979e757c55515966f65359e4.1638530442.git.robin.murphy@arm.com]
Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/arm-cmn.c | 43 ++++++++++++++++++++++++------------------
1 file changed, 25 insertions(+), 18 deletions(-)
diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c
index 2204d6500814..b89a081d26ff 100644
--- a/drivers/perf/arm-cmn.c
+++ b/drivers/perf/arm-cmn.c
@@ -876,8 +876,8 @@ static int arm_cmn_validate_group(struct perf_event *event)
struct arm_cmn_node *dn;
struct perf_event *sibling, *leader = event->group_leader;
enum cmn_node_type type;
- struct arm_cmn_val val;
- int i;
+ struct arm_cmn_val *val;
+ int i, ret = -EINVAL;
u8 occupid;
if (leader == event)
@@ -886,18 +886,22 @@ static int arm_cmn_validate_group(struct perf_event *event)
if (event->pmu != leader->pmu && !is_software_event(leader))
return -EINVAL;
- memset(&val, 0, sizeof(val));
+ val = kzalloc(sizeof(*val), GFP_KERNEL);
+ if (!val)
+ return -ENOMEM;
- arm_cmn_val_add_event(&val, leader);
+ arm_cmn_val_add_event(val, leader);
for_each_sibling_event(sibling, leader)
- arm_cmn_val_add_event(&val, sibling);
+ arm_cmn_val_add_event(val, sibling);
type = CMN_EVENT_TYPE(event);
- if (type == CMN_TYPE_DTC)
- return val.cycles ? -EINVAL : 0;
+ if (type == CMN_TYPE_DTC) {
+ ret = val->cycles ? -EINVAL : 0;
+ goto done;
+ }
- if (val.dtc_count == CMN_DT_NUM_COUNTERS)
- return -EINVAL;
+ if (val->dtc_count == CMN_DT_NUM_COUNTERS)
+ goto done;
if (arm_cmn_is_occup_event(type, CMN_EVENT_EVENTID(event)))
occupid = CMN_EVENT_OCCUPID(event) + 1;
@@ -907,25 +911,28 @@ static int arm_cmn_validate_group(struct perf_event *event)
for_each_hw_dn(hw, dn, i) {
int wp_idx, wp_cmb, dtm = dn->dtm;
- if (val.dtm_count[dtm] == CMN_DTM_NUM_COUNTERS)
- return -EINVAL;
+ if (val->dtm_count[dtm] == CMN_DTM_NUM_COUNTERS)
+ goto done;
- if (occupid && val.occupid[dtm] && occupid != val.occupid[dtm])
- return -EINVAL;
+ if (occupid && val->occupid[dtm] && occupid != val->occupid[dtm])
+ goto done;
if (type != CMN_TYPE_WP)
continue;
wp_idx = arm_cmn_wp_idx(event);
- if (val.wp[dtm][wp_idx])
- return -EINVAL;
+ if (val->wp[dtm][wp_idx])
+ goto done;
- wp_cmb = val.wp[dtm][wp_idx ^ 1];
+ wp_cmb = val->wp[dtm][wp_idx ^ 1];
if (wp_cmb && wp_cmb != CMN_EVENT_WP_COMBINE(event) + 1)
- return -EINVAL;
+ goto done;
}
- return 0;
+ ret = 0;
+done:
+ kfree(val);
+ return ret;
}
static int arm_cmn_event_init(struct perf_event *event)
--
2.25.1
meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0035-perf-arm-cmn-Demarcate-CMN-600-specifics.patch
+466
View File
@@ -0,0 +1,466 @@
From 7400784247be42beb996f7538547c56acd6cfa0c Mon Sep 17 00:00:00 2001
From: Robin Murphy <robin.murphy@arm.com>
Date: Fri, 3 Dec 2021 11:44:59 +0000
Subject: [PATCH 12/14] perf/arm-cmn: Demarcate CMN-600 specifics
In preparation for supporting newer CMN products, let's introduce a
means to differentiate the features and events which are specific to a
particular IP from those which remain common to the whole family. The
newer designs have also smoothed off some of the rough edges in terms
of discoverability, so separate out the parts of the flow which have
effectively now become CMN-600 quirks.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/9f6368cdca4c821d801138939508a5bba54ccabb.1638530442.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Upstream-Status: Backport [https://lore.kernel.org/r/9f6368cdca4c821d801138939508a5bba54ccabb.1638530442.git.robin.murphy@arm.com]
Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/arm-cmn.c | 313 +++++++++++++++++++++--------------------
1 file changed, 162 insertions(+), 151 deletions(-)
diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c
index b89a081d26ff..92ff273fbe58 100644
--- a/drivers/perf/arm-cmn.c
+++ b/drivers/perf/arm-cmn.c
@@ -151,7 +151,12 @@
#define CMN_WP_DOWN 2
-/* r0px probably don't exist in silicon, thankfully */
+enum cmn_model {
+ CMN_ANY = -1,
+ CMN600 = 1,
+};
+
+/* CMN-600 r0px shouldn't exist in silicon, thankfully */
enum cmn_revision {
CMN600_R1P0,
CMN600_R1P1,
@@ -159,6 +164,7 @@ enum cmn_revision {
CMN600_R1P3,
CMN600_R2P0,
CMN600_R3P0,
+ CMN600_R3P1,
};
enum cmn_node_type {
@@ -229,6 +235,7 @@ struct arm_cmn {
void __iomem *base;
enum cmn_revision rev;
+ enum cmn_model model;
u8 mesh_x;
u8 mesh_y;
u16 num_xps;
@@ -326,6 +333,7 @@ static unsigned int arm_cmn_get_index(u64 x[], unsigned int pos)
struct arm_cmn_event_attr {
struct device_attribute attr;
+ enum cmn_model model;
enum cmn_node_type type;
u8 eventid;
u8 occupid;
@@ -337,9 +345,10 @@ struct arm_cmn_format_attr {
int config;
};
-#define CMN_EVENT_ATTR(_name, _type, _eventid, _occupid) \
+#define CMN_EVENT_ATTR(_model, _name, _type, _eventid, _occupid) \
(&((struct arm_cmn_event_attr[]) {{ \
.attr = __ATTR(_name, 0444, arm_cmn_event_show, NULL), \
+ .model = _model, \
.type = _type, \
.eventid = _eventid, \
.occupid = _occupid, \
@@ -386,12 +395,15 @@ static umode_t arm_cmn_event_attr_is_visible(struct kobject *kobj,
eattr = container_of(attr, typeof(*eattr), attr.attr);
type = eattr->type;
+ if (!(eattr->model & cmn->model))
+ return 0;
+
/* Watchpoints aren't nodes */
if (type == CMN_TYPE_WP)
type = CMN_TYPE_XP;
/* Revision-specific differences */
- if (cmn->rev < CMN600_R1P2) {
+ if (cmn->model == CMN600 && cmn->rev < CMN600_R1P2) {
if (type == CMN_TYPE_HNF && eattr->eventid == 0x1b)
return 0;
}
@@ -402,25 +414,27 @@ static umode_t arm_cmn_event_attr_is_visible(struct kobject *kobj,
return attr->mode;
}
-#define _CMN_EVENT_DVM(_name, _event, _occup) \
- CMN_EVENT_ATTR(dn_##_name, CMN_TYPE_DVM, _event, _occup)
+#define _CMN_EVENT_DVM(_model, _name, _event, _occup) \
+ CMN_EVENT_ATTR(_model, dn_##_name, CMN_TYPE_DVM, _event, _occup)
#define CMN_EVENT_DTC(_name) \
- CMN_EVENT_ATTR(dtc_##_name, CMN_TYPE_DTC, 0, 0)
-#define _CMN_EVENT_HNF(_name, _event, _occup) \
- CMN_EVENT_ATTR(hnf_##_name, CMN_TYPE_HNF, _event, _occup)
+ CMN_EVENT_ATTR(CMN_ANY, dtc_##_name, CMN_TYPE_DTC, 0, 0)
+#define _CMN_EVENT_HNF(_model, _name, _event, _occup) \
+ CMN_EVENT_ATTR(_model, hnf_##_name, CMN_TYPE_HNF, _event, _occup)
#define CMN_EVENT_HNI(_name, _event) \
- CMN_EVENT_ATTR(hni_##_name, CMN_TYPE_HNI, _event, 0)
+ CMN_EVENT_ATTR(CMN_ANY, hni_##_name, CMN_TYPE_HNI, _event, 0)
#define __CMN_EVENT_XP(_name, _event) \
- CMN_EVENT_ATTR(mxp_##_name, CMN_TYPE_XP, _event, 0)
-#define CMN_EVENT_SBSX(_name, _event) \
- CMN_EVENT_ATTR(sbsx_##_name, CMN_TYPE_SBSX, _event, 0)
-#define CMN_EVENT_RNID(_name, _event) \
- CMN_EVENT_ATTR(rnid_##_name, CMN_TYPE_RNI, _event, 0)
-
-#define CMN_EVENT_DVM(_name, _event) \
- _CMN_EVENT_DVM(_name, _event, 0)
-#define CMN_EVENT_HNF(_name, _event) \
- _CMN_EVENT_HNF(_name, _event, 0)
+ CMN_EVENT_ATTR(CMN_ANY, mxp_##_name, CMN_TYPE_XP, _event, 0)
+#define CMN_EVENT_SBSX(_model, _name, _event) \
+ CMN_EVENT_ATTR(_model, sbsx_##_name, CMN_TYPE_SBSX, _event, 0)
+#define CMN_EVENT_RNID(_model, _name, _event) \
+ CMN_EVENT_ATTR(_model, rnid_##_name, CMN_TYPE_RNI, _event, 0)
+#define CMN_EVENT_MTSX(_name, _event) \
+ CMN_EVENT_ATTR(CMN_ANY, mtsx_##_name, CMN_TYPE_MTSX, _event, 0)
+
+#define CMN_EVENT_DVM(_model, _name, _event) \
+ _CMN_EVENT_DVM(_model, _name, _event, 0)
+#define CMN_EVENT_HNF(_model, _name, _event) \
+ _CMN_EVENT_HNF(_model, _name, _event, 0)
#define _CMN_EVENT_XP(_name, _event) \
__CMN_EVENT_XP(e_##_name, (_event) | (0 << 2)), \
__CMN_EVENT_XP(w_##_name, (_event) | (1 << 2)), \
@@ -445,115 +459,115 @@ static struct attribute *arm_cmn_event_attrs[] = {
* slot, but our lazy short-cut of using the DTM counter index for
* the PMU index as well happens to avoid that by construction.
*/
- CMN_EVENT_DVM(rxreq_dvmop, 0x01),
- CMN_EVENT_DVM(rxreq_dvmsync, 0x02),
- CMN_EVENT_DVM(rxreq_dvmop_vmid_filtered, 0x03),
- CMN_EVENT_DVM(rxreq_retried, 0x04),
- _CMN_EVENT_DVM(rxreq_trk_occupancy_all, 0x05, 0),
- _CMN_EVENT_DVM(rxreq_trk_occupancy_dvmop, 0x05, 1),
- _CMN_EVENT_DVM(rxreq_trk_occupancy_dvmsync, 0x05, 2),
-
- CMN_EVENT_HNF(cache_miss, 0x01),
- CMN_EVENT_HNF(slc_sf_cache_access, 0x02),
- CMN_EVENT_HNF(cache_fill, 0x03),
- CMN_EVENT_HNF(pocq_retry, 0x04),
- CMN_EVENT_HNF(pocq_reqs_recvd, 0x05),
- CMN_EVENT_HNF(sf_hit, 0x06),
- CMN_EVENT_HNF(sf_evictions, 0x07),
- CMN_EVENT_HNF(dir_snoops_sent, 0x08),
- CMN_EVENT_HNF(brd_snoops_sent, 0x09),
- CMN_EVENT_HNF(slc_eviction, 0x0a),
- CMN_EVENT_HNF(slc_fill_invalid_way, 0x0b),
- CMN_EVENT_HNF(mc_retries, 0x0c),
- CMN_EVENT_HNF(mc_reqs, 0x0d),
- CMN_EVENT_HNF(qos_hh_retry, 0x0e),
- _CMN_EVENT_HNF(qos_pocq_occupancy_all, 0x0f, 0),
- _CMN_EVENT_HNF(qos_pocq_occupancy_read, 0x0f, 1),
- _CMN_EVENT_HNF(qos_pocq_occupancy_write, 0x0f, 2),
- _CMN_EVENT_HNF(qos_pocq_occupancy_atomic, 0x0f, 3),
- _CMN_EVENT_HNF(qos_pocq_occupancy_stash, 0x0f, 4),
- CMN_EVENT_HNF(pocq_addrhaz, 0x10),
- CMN_EVENT_HNF(pocq_atomic_addrhaz, 0x11),
- CMN_EVENT_HNF(ld_st_swp_adq_full, 0x12),
- CMN_EVENT_HNF(cmp_adq_full, 0x13),
- CMN_EVENT_HNF(txdat_stall, 0x14),
- CMN_EVENT_HNF(txrsp_stall, 0x15),
- CMN_EVENT_HNF(seq_full, 0x16),
- CMN_EVENT_HNF(seq_hit, 0x17),
- CMN_EVENT_HNF(snp_sent, 0x18),
- CMN_EVENT_HNF(sfbi_dir_snp_sent, 0x19),
- CMN_EVENT_HNF(sfbi_brd_snp_sent, 0x1a),
- CMN_EVENT_HNF(snp_sent_untrk, 0x1b),
- CMN_EVENT_HNF(intv_dirty, 0x1c),
- CMN_EVENT_HNF(stash_snp_sent, 0x1d),
- CMN_EVENT_HNF(stash_data_pull, 0x1e),
- CMN_EVENT_HNF(snp_fwded, 0x1f),
-
- CMN_EVENT_HNI(rrt_rd_occ_cnt_ovfl, 0x20),
- CMN_EVENT_HNI(rrt_wr_occ_cnt_ovfl, 0x21),
- CMN_EVENT_HNI(rdt_rd_occ_cnt_ovfl, 0x22),
- CMN_EVENT_HNI(rdt_wr_occ_cnt_ovfl, 0x23),
- CMN_EVENT_HNI(wdb_occ_cnt_ovfl, 0x24),
- CMN_EVENT_HNI(rrt_rd_alloc, 0x25),
- CMN_EVENT_HNI(rrt_wr_alloc, 0x26),
- CMN_EVENT_HNI(rdt_rd_alloc, 0x27),
- CMN_EVENT_HNI(rdt_wr_alloc, 0x28),
- CMN_EVENT_HNI(wdb_alloc, 0x29),
- CMN_EVENT_HNI(txrsp_retryack, 0x2a),
- CMN_EVENT_HNI(arvalid_no_arready, 0x2b),
- CMN_EVENT_HNI(arready_no_arvalid, 0x2c),
- CMN_EVENT_HNI(awvalid_no_awready, 0x2d),
- CMN_EVENT_HNI(awready_no_awvalid, 0x2e),
- CMN_EVENT_HNI(wvalid_no_wready, 0x2f),
- CMN_EVENT_HNI(txdat_stall, 0x30),
- CMN_EVENT_HNI(nonpcie_serialization, 0x31),
- CMN_EVENT_HNI(pcie_serialization, 0x32),
-
- CMN_EVENT_XP(txflit_valid, 0x01),
- CMN_EVENT_XP(txflit_stall, 0x02),
- CMN_EVENT_XP(partial_dat_flit, 0x03),
+ CMN_EVENT_DVM(CMN600, rxreq_dvmop, 0x01),
+ CMN_EVENT_DVM(CMN600, rxreq_dvmsync, 0x02),
+ CMN_EVENT_DVM(CMN600, rxreq_dvmop_vmid_filtered, 0x03),
+ CMN_EVENT_DVM(CMN600, rxreq_retried, 0x04),
+ _CMN_EVENT_DVM(CMN600, rxreq_trk_occupancy_all, 0x05, 0),
+ _CMN_EVENT_DVM(CMN600, rxreq_trk_occupancy_dvmop, 0x05, 1),
+ _CMN_EVENT_DVM(CMN600, rxreq_trk_occupancy_dvmsync, 0x05, 2),
+
+ CMN_EVENT_HNF(CMN_ANY, cache_miss, 0x01),
+ CMN_EVENT_HNF(CMN_ANY, slc_sf_cache_access, 0x02),
+ CMN_EVENT_HNF(CMN_ANY, cache_fill, 0x03),
+ CMN_EVENT_HNF(CMN_ANY, pocq_retry, 0x04),
+ CMN_EVENT_HNF(CMN_ANY, pocq_reqs_recvd, 0x05),
+ CMN_EVENT_HNF(CMN_ANY, sf_hit, 0x06),
+ CMN_EVENT_HNF(CMN_ANY, sf_evictions, 0x07),
+ CMN_EVENT_HNF(CMN_ANY, dir_snoops_sent, 0x08),
+ CMN_EVENT_HNF(CMN_ANY, brd_snoops_sent, 0x09),
+ CMN_EVENT_HNF(CMN_ANY, slc_eviction, 0x0a),
+ CMN_EVENT_HNF(CMN_ANY, slc_fill_invalid_way, 0x0b),
+ CMN_EVENT_HNF(CMN_ANY, mc_retries, 0x0c),
+ CMN_EVENT_HNF(CMN_ANY, mc_reqs, 0x0d),
+ CMN_EVENT_HNF(CMN_ANY, qos_hh_retry, 0x0e),
+ _CMN_EVENT_HNF(CMN_ANY, qos_pocq_occupancy_all, 0x0f, 0),
+ _CMN_EVENT_HNF(CMN_ANY, qos_pocq_occupancy_read, 0x0f, 1),
+ _CMN_EVENT_HNF(CMN_ANY, qos_pocq_occupancy_write, 0x0f, 2),
+ _CMN_EVENT_HNF(CMN_ANY, qos_pocq_occupancy_atomic, 0x0f, 3),
+ _CMN_EVENT_HNF(CMN_ANY, qos_pocq_occupancy_stash, 0x0f, 4),
+ CMN_EVENT_HNF(CMN_ANY, pocq_addrhaz, 0x10),
+ CMN_EVENT_HNF(CMN_ANY, pocq_atomic_addrhaz, 0x11),
+ CMN_EVENT_HNF(CMN_ANY, ld_st_swp_adq_full, 0x12),
+ CMN_EVENT_HNF(CMN_ANY, cmp_adq_full, 0x13),
+ CMN_EVENT_HNF(CMN_ANY, txdat_stall, 0x14),
+ CMN_EVENT_HNF(CMN_ANY, txrsp_stall, 0x15),
+ CMN_EVENT_HNF(CMN_ANY, seq_full, 0x16),
+ CMN_EVENT_HNF(CMN_ANY, seq_hit, 0x17),
+ CMN_EVENT_HNF(CMN_ANY, snp_sent, 0x18),
+ CMN_EVENT_HNF(CMN_ANY, sfbi_dir_snp_sent, 0x19),
+ CMN_EVENT_HNF(CMN_ANY, sfbi_brd_snp_sent, 0x1a),
+ CMN_EVENT_HNF(CMN_ANY, snp_sent_untrk, 0x1b),
+ CMN_EVENT_HNF(CMN_ANY, intv_dirty, 0x1c),
+ CMN_EVENT_HNF(CMN_ANY, stash_snp_sent, 0x1d),
+ CMN_EVENT_HNF(CMN_ANY, stash_data_pull, 0x1e),
+ CMN_EVENT_HNF(CMN_ANY, snp_fwded, 0x1f),
+
+ CMN_EVENT_HNI(rrt_rd_occ_cnt_ovfl, 0x20),
+ CMN_EVENT_HNI(rrt_wr_occ_cnt_ovfl, 0x21),
+ CMN_EVENT_HNI(rdt_rd_occ_cnt_ovfl, 0x22),
+ CMN_EVENT_HNI(rdt_wr_occ_cnt_ovfl, 0x23),
+ CMN_EVENT_HNI(wdb_occ_cnt_ovfl, 0x24),
+ CMN_EVENT_HNI(rrt_rd_alloc, 0x25),
+ CMN_EVENT_HNI(rrt_wr_alloc, 0x26),
+ CMN_EVENT_HNI(rdt_rd_alloc, 0x27),
+ CMN_EVENT_HNI(rdt_wr_alloc, 0x28),
+ CMN_EVENT_HNI(wdb_alloc, 0x29),
+ CMN_EVENT_HNI(txrsp_retryack, 0x2a),
+ CMN_EVENT_HNI(arvalid_no_arready, 0x2b),
+ CMN_EVENT_HNI(arready_no_arvalid, 0x2c),
+ CMN_EVENT_HNI(awvalid_no_awready, 0x2d),
+ CMN_EVENT_HNI(awready_no_awvalid, 0x2e),
+ CMN_EVENT_HNI(wvalid_no_wready, 0x2f),
+ CMN_EVENT_HNI(txdat_stall, 0x30),
+ CMN_EVENT_HNI(nonpcie_serialization, 0x31),
+ CMN_EVENT_HNI(pcie_serialization, 0x32),
+
+ CMN_EVENT_XP(txflit_valid, 0x01),
+ CMN_EVENT_XP(txflit_stall, 0x02),
+ CMN_EVENT_XP(partial_dat_flit, 0x03),
/* We treat watchpoints as a special made-up class of XP events */
- CMN_EVENT_ATTR(watchpoint_up, CMN_TYPE_WP, 0, 0),
- CMN_EVENT_ATTR(watchpoint_down, CMN_TYPE_WP, 2, 0),
-
- CMN_EVENT_SBSX(rd_req, 0x01),
- CMN_EVENT_SBSX(wr_req, 0x02),
- CMN_EVENT_SBSX(cmo_req, 0x03),
- CMN_EVENT_SBSX(txrsp_retryack, 0x04),
- CMN_EVENT_SBSX(txdat_flitv, 0x05),
- CMN_EVENT_SBSX(txrsp_flitv, 0x06),
- CMN_EVENT_SBSX(rd_req_trkr_occ_cnt_ovfl, 0x11),
- CMN_EVENT_SBSX(wr_req_trkr_occ_cnt_ovfl, 0x12),
- CMN_EVENT_SBSX(cmo_req_trkr_occ_cnt_ovfl, 0x13),
- CMN_EVENT_SBSX(wdb_occ_cnt_ovfl, 0x14),
- CMN_EVENT_SBSX(rd_axi_trkr_occ_cnt_ovfl, 0x15),
- CMN_EVENT_SBSX(cmo_axi_trkr_occ_cnt_ovfl, 0x16),
- CMN_EVENT_SBSX(arvalid_no_arready, 0x21),
- CMN_EVENT_SBSX(awvalid_no_awready, 0x22),
- CMN_EVENT_SBSX(wvalid_no_wready, 0x23),
- CMN_EVENT_SBSX(txdat_stall, 0x24),
- CMN_EVENT_SBSX(txrsp_stall, 0x25),
-
- CMN_EVENT_RNID(s0_rdata_beats, 0x01),
- CMN_EVENT_RNID(s1_rdata_beats, 0x02),
- CMN_EVENT_RNID(s2_rdata_beats, 0x03),
- CMN_EVENT_RNID(rxdat_flits, 0x04),
- CMN_EVENT_RNID(txdat_flits, 0x05),
- CMN_EVENT_RNID(txreq_flits_total, 0x06),
- CMN_EVENT_RNID(txreq_flits_retried, 0x07),
- CMN_EVENT_RNID(rrt_occ_ovfl, 0x08),
- CMN_EVENT_RNID(wrt_occ_ovfl, 0x09),
- CMN_EVENT_RNID(txreq_flits_replayed, 0x0a),
- CMN_EVENT_RNID(wrcancel_sent, 0x0b),
- CMN_EVENT_RNID(s0_wdata_beats, 0x0c),
- CMN_EVENT_RNID(s1_wdata_beats, 0x0d),
- CMN_EVENT_RNID(s2_wdata_beats, 0x0e),
- CMN_EVENT_RNID(rrt_alloc, 0x0f),
- CMN_EVENT_RNID(wrt_alloc, 0x10),
- CMN_EVENT_RNID(rdb_unord, 0x11),
- CMN_EVENT_RNID(rdb_replay, 0x12),
- CMN_EVENT_RNID(rdb_hybrid, 0x13),
- CMN_EVENT_RNID(rdb_ord, 0x14),
+ CMN_EVENT_ATTR(CMN_ANY, watchpoint_up, CMN_TYPE_WP, CMN_WP_UP, 0),
+ CMN_EVENT_ATTR(CMN_ANY, watchpoint_down, CMN_TYPE_WP, CMN_WP_DOWN, 0),
+
+ CMN_EVENT_SBSX(CMN_ANY, rd_req, 0x01),
+ CMN_EVENT_SBSX(CMN_ANY, wr_req, 0x02),
+ CMN_EVENT_SBSX(CMN_ANY, cmo_req, 0x03),
+ CMN_EVENT_SBSX(CMN_ANY, txrsp_retryack, 0x04),
+ CMN_EVENT_SBSX(CMN_ANY, txdat_flitv, 0x05),
+ CMN_EVENT_SBSX(CMN_ANY, txrsp_flitv, 0x06),
+ CMN_EVENT_SBSX(CMN_ANY, rd_req_trkr_occ_cnt_ovfl, 0x11),
+ CMN_EVENT_SBSX(CMN_ANY, wr_req_trkr_occ_cnt_ovfl, 0x12),
+ CMN_EVENT_SBSX(CMN_ANY, cmo_req_trkr_occ_cnt_ovfl, 0x13),
+ CMN_EVENT_SBSX(CMN_ANY, wdb_occ_cnt_ovfl, 0x14),
+ CMN_EVENT_SBSX(CMN_ANY, rd_axi_trkr_occ_cnt_ovfl, 0x15),
+ CMN_EVENT_SBSX(CMN_ANY, cmo_axi_trkr_occ_cnt_ovfl, 0x16),
+ CMN_EVENT_SBSX(CMN_ANY, arvalid_no_arready, 0x21),
+ CMN_EVENT_SBSX(CMN_ANY, awvalid_no_awready, 0x22),
+ CMN_EVENT_SBSX(CMN_ANY, wvalid_no_wready, 0x23),
+ CMN_EVENT_SBSX(CMN_ANY, txdat_stall, 0x24),
+ CMN_EVENT_SBSX(CMN_ANY, txrsp_stall, 0x25),
+
+ CMN_EVENT_RNID(CMN_ANY, s0_rdata_beats, 0x01),
+ CMN_EVENT_RNID(CMN_ANY, s1_rdata_beats, 0x02),
+ CMN_EVENT_RNID(CMN_ANY, s2_rdata_beats, 0x03),
+ CMN_EVENT_RNID(CMN_ANY, rxdat_flits, 0x04),
+ CMN_EVENT_RNID(CMN_ANY, txdat_flits, 0x05),
+ CMN_EVENT_RNID(CMN_ANY, txreq_flits_total, 0x06),
+ CMN_EVENT_RNID(CMN_ANY, txreq_flits_retried, 0x07),
+ CMN_EVENT_RNID(CMN_ANY, rrt_occ_ovfl, 0x08),
+ CMN_EVENT_RNID(CMN_ANY, wrt_occ_ovfl, 0x09),
+ CMN_EVENT_RNID(CMN_ANY, txreq_flits_replayed, 0x0a),
+ CMN_EVENT_RNID(CMN_ANY, wrcancel_sent, 0x0b),
+ CMN_EVENT_RNID(CMN_ANY, s0_wdata_beats, 0x0c),
+ CMN_EVENT_RNID(CMN_ANY, s1_wdata_beats, 0x0d),
+ CMN_EVENT_RNID(CMN_ANY, s2_wdata_beats, 0x0e),
+ CMN_EVENT_RNID(CMN_ANY, rrt_alloc, 0x0f),
+ CMN_EVENT_RNID(CMN_ANY, wrt_alloc, 0x10),
+ CMN_EVENT_RNID(CMN600, rdb_unord, 0x11),
+ CMN_EVENT_RNID(CMN600, rdb_replay, 0x12),
+ CMN_EVENT_RNID(CMN600, rdb_hybrid, 0x13),
+ CMN_EVENT_RNID(CMN600, rdb_ord, 0x14),
NULL
};
@@ -1386,15 +1400,14 @@ static int arm_cmn_discover(struct arm_cmn *cmn, unsigned int rgn_offset)
int i, j;
size_t sz;
- cfg_region = cmn->base + rgn_offset;
- reg = readl_relaxed(cfg_region + CMN_CFGM_PERIPH_ID_2);
- cmn->rev = FIELD_GET(CMN_CFGM_PID2_REVISION, reg);
- dev_dbg(cmn->dev, "periph_id_2 revision: %d\n", cmn->rev);
-
arm_cmn_init_node_info(cmn, rgn_offset, &cfg);
if (cfg.type != CMN_TYPE_CFG)
return -ENODEV;
+ cfg_region = cmn->base + rgn_offset;
+ reg = readl_relaxed(cfg_region + CMN_CFGM_PERIPH_ID_2);
+ cmn->rev = FIELD_GET(CMN_CFGM_PID2_REVISION, reg);
+
reg = readq_relaxed(cfg_region + CMN_CHILD_INFO);
child_count = FIELD_GET(CMN_CI_CHILD_COUNT, reg);
child_poff = FIELD_GET(CMN_CI_CHILD_PTR_OFFSET, reg);
@@ -1507,13 +1520,14 @@ static int arm_cmn_discover(struct arm_cmn *cmn, unsigned int rgn_offset)
cmn->mesh_x = cmn->num_xps;
cmn->mesh_y = cmn->num_xps / cmn->mesh_x;
+ dev_dbg(cmn->dev, "model %d, periph_id_2 revision %d\n", cmn->model, cmn->rev);
dev_dbg(cmn->dev, "mesh %dx%d, ID width %d\n",
cmn->mesh_x, cmn->mesh_y, arm_cmn_xyidbits(cmn));
return 0;
}
-static int arm_cmn_acpi_probe(struct platform_device *pdev, struct arm_cmn *cmn)
+static int arm_cmn600_acpi_probe(struct platform_device *pdev, struct arm_cmn *cmn)
{
struct resource *cfg, *root;
@@ -1540,21 +1554,11 @@ static int arm_cmn_acpi_probe(struct platform_device *pdev, struct arm_cmn *cmn)
return root->start - cfg->start;
}
-static int arm_cmn_of_probe(struct platform_device *pdev, struct arm_cmn *cmn)
+static int arm_cmn600_of_probe(struct device_node *np)
{
- struct device_node *np = pdev->dev.of_node;
u32 rootnode;
- int ret;
- cmn->base = devm_platform_ioremap_resource(pdev, 0);
- if (IS_ERR(cmn->base))
- return PTR_ERR(cmn->base);
-
- ret = of_property_read_u32(np, "arm,root-node", &rootnode);
- if (ret)
- return ret;
-
- return rootnode;
+ return of_property_read_u32(np, "arm,root-node", &rootnode) ?: rootnode;
}
static int arm_cmn_probe(struct platform_device *pdev)
@@ -1569,12 +1573,19 @@ static int arm_cmn_probe(struct platform_device *pdev)
return -ENOMEM;
cmn->dev = &pdev->dev;
+ cmn->model = (unsigned long)device_get_match_data(cmn->dev);
platform_set_drvdata(pdev, cmn);
- if (has_acpi_companion(cmn->dev))
- rootnode = arm_cmn_acpi_probe(pdev, cmn);
- else
- rootnode = arm_cmn_of_probe(pdev, cmn);
+ if (cmn->model == CMN600 && has_acpi_companion(cmn->dev)) {
+ rootnode = arm_cmn600_acpi_probe(pdev, cmn);
+ } else {
+ rootnode = 0;
+ cmn->base = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(cmn->base))
+ return PTR_ERR(cmn->base);
+ if (cmn->model == CMN600)
+ rootnode = arm_cmn600_of_probe(pdev->dev.of_node);
+ }
if (rootnode < 0)
return rootnode;
@@ -1637,7 +1648,7 @@ static int arm_cmn_remove(struct platform_device *pdev)
#ifdef CONFIG_OF
static const struct of_device_id arm_cmn_of_match[] = {
- { .compatible = "arm,cmn-600", },
+ { .compatible = "arm,cmn-600", .data = (void *)CMN600 },
{}
};
MODULE_DEVICE_TABLE(of, arm_cmn_of_match);
@@ -1645,7 +1656,7 @@ MODULE_DEVICE_TABLE(of, arm_cmn_of_match);
#ifdef CONFIG_ACPI
static const struct acpi_device_id arm_cmn_acpi_match[] = {
- { "ARMHC600", },
+ { "ARMHC600", CMN600 },
{}
};
MODULE_DEVICE_TABLE(acpi, arm_cmn_acpi_match);
--
2.25.1
meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0036-perf-arm-cmn-Support-new-IP-features.patch
+549
View File
@@ -0,0 +1,549 @@
From a10c446ba1f7516c16dd6400c9a7f5e203779a5d Mon Sep 17 00:00:00 2001
From: Robin Murphy <robin.murphy@arm.com>
Date: Fri, 3 Dec 2021 11:45:00 +0000
Subject: [PATCH 13/14] perf/arm-cmn: Support new IP features
The second generation of CMN IPs add new node types and significantly
expand the configuration space with options for extra device ports on
edge XPs, either plumbed into the regular DTM or with extra dedicated
DTMs to monitor them, plus larger (and smaller) mesh sizes. Add basic
support for pulling this new information out of the hardware, piping
it around as necessary, and handling (most of) the new choices.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/e58b495bcc7deec3882be4bac910ed0bf6979674.1638530442.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/arm-cmn.c | 222 ++++++++++++++++++++++++++++++++---------
1 file changed, 173 insertions(+), 49 deletions(-)
diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c
index 92ff273fbe58..871c86687379 100644
--- a/drivers/perf/arm-cmn.c
+++ b/drivers/perf/arm-cmn.c
@@ -24,7 +24,10 @@
#define CMN_NI_LOGICAL_ID GENMASK_ULL(47, 32)
#define CMN_NODEID_DEVID(reg) ((reg) & 3)
+#define CMN_NODEID_EXT_DEVID(reg) ((reg) & 1)
#define CMN_NODEID_PID(reg) (((reg) >> 2) & 1)
+#define CMN_NODEID_EXT_PID(reg) (((reg) >> 1) & 3)
+#define CMN_NODEID_1x1_PID(reg) (((reg) >> 2) & 7)
#define CMN_NODEID_X(reg, bits) ((reg) >> (3 + (bits)))
#define CMN_NODEID_Y(reg, bits) (((reg) >> 3) & ((1U << (bits)) - 1))
@@ -37,13 +40,26 @@
#define CMN_MAX_DIMENSION 8
#define CMN_MAX_XPS (CMN_MAX_DIMENSION * CMN_MAX_DIMENSION)
-#define CMN_MAX_DTMS CMN_MAX_XPS
+#define CMN_MAX_DTMS (CMN_MAX_XPS + (CMN_MAX_DIMENSION - 1) * 4)
-/* The CFG node has one other useful purpose */
+/* The CFG node has various info besides the discovery tree */
#define CMN_CFGM_PERIPH_ID_2 0x0010
#define CMN_CFGM_PID2_REVISION GENMASK(7, 4)
-/* PMU registers occupy the 3rd 4KB page of each node's 16KB space */
+#define CMN_CFGM_INFO_GLOBAL 0x900
+#define CMN_INFO_MULTIPLE_DTM_EN BIT_ULL(63)
+#define CMN_INFO_RSP_VC_NUM GENMASK_ULL(53, 52)
+#define CMN_INFO_DAT_VC_NUM GENMASK_ULL(51, 50)
+
+/* XPs also have some local topology info which has uses too */
+#define CMN_MXP__CONNECT_INFO_P0 0x0008
+#define CMN_MXP__CONNECT_INFO_P1 0x0010
+#define CMN_MXP__CONNECT_INFO_P2 0x0028
+#define CMN_MXP__CONNECT_INFO_P3 0x0030
+#define CMN_MXP__CONNECT_INFO_P4 0x0038
+#define CMN_MXP__CONNECT_INFO_P5 0x0040
+
+/* PMU registers occupy the 3rd 4KB page of each node's region */
#define CMN_PMU_OFFSET 0x2000
/* For most nodes, this is all there is */
@@ -53,6 +69,7 @@
/* DTMs live in the PMU space of XP registers */
#define CMN_DTM_WPn(n) (0x1A0 + (n) * 0x18)
#define CMN_DTM_WPn_CONFIG(n) (CMN_DTM_WPn(n) + 0x00)
+#define CMN_DTM_WPn_CONFIG_WP_DEV_SEL2 GENMASK_ULL(18,17)
#define CMN_DTM_WPn_CONFIG_WP_COMBINE BIT(6)
#define CMN_DTM_WPn_CONFIG_WP_EXCLUSIVE BIT(5)
#define CMN_DTM_WPn_CONFIG_WP_GRP BIT(4)
@@ -77,7 +94,11 @@
#define CMN_DTM_PMEVCNTSR 0x240
+#define CMN_DTM_UNIT_INFO 0x0910
+
#define CMN_DTM_NUM_COUNTERS 4
+/* Want more local counters? Why not replicate the whole DTM! Ugh... */
+#define CMN_DTM_OFFSET(n) ((n) * 0x200)
/* The DTC node is where the magic happens */
#define CMN_DT_DTC_CTL 0x0a00
@@ -131,10 +152,10 @@
#define CMN_EVENT_NODEID(event) FIELD_GET(CMN_CONFIG_NODEID, (event)->attr.config)
#define CMN_CONFIG_WP_COMBINE GENMASK_ULL(27, 24)
-#define CMN_CONFIG_WP_DEV_SEL BIT_ULL(48)
-#define CMN_CONFIG_WP_CHN_SEL GENMASK_ULL(50, 49)
-#define CMN_CONFIG_WP_GRP BIT_ULL(52)
-#define CMN_CONFIG_WP_EXCLUSIVE BIT_ULL(53)
+#define CMN_CONFIG_WP_DEV_SEL GENMASK_ULL(50, 48)
+#define CMN_CONFIG_WP_CHN_SEL GENMASK_ULL(55, 51)
+#define CMN_CONFIG_WP_GRP BIT_ULL(56)
+#define CMN_CONFIG_WP_EXCLUSIVE BIT_ULL(57)
#define CMN_CONFIG1_WP_VAL GENMASK_ULL(63, 0)
#define CMN_CONFIG2_WP_MASK GENMASK_ULL(63, 0)
@@ -176,9 +197,12 @@ enum cmn_node_type {
CMN_TYPE_HNF,
CMN_TYPE_XP,
CMN_TYPE_SBSX,
- CMN_TYPE_RNI = 0xa,
+ CMN_TYPE_MPAM_S,
+ CMN_TYPE_MPAM_NS,
+ CMN_TYPE_RNI,
CMN_TYPE_RND = 0xd,
CMN_TYPE_RNSAM = 0xf,
+ CMN_TYPE_MTSX,
CMN_TYPE_CXRA = 0x100,
CMN_TYPE_CXHA = 0x101,
CMN_TYPE_CXLA = 0x102,
@@ -233,6 +257,7 @@ struct arm_cmn_dtc {
struct arm_cmn {
struct device *dev;
void __iomem *base;
+ unsigned int state;
enum cmn_revision rev;
enum cmn_model model;
@@ -240,6 +265,13 @@ struct arm_cmn {
u8 mesh_y;
u16 num_xps;
u16 num_dns;
+ bool multi_dtm;
+ u8 ports_used;
+ struct {
+ unsigned int rsp_vc_num : 2;
+ unsigned int dat_vc_num : 2;
+ };
+
struct arm_cmn_node *xps;
struct arm_cmn_node *dns;
@@ -250,7 +282,6 @@ struct arm_cmn {
int cpu;
struct hlist_node cpuhp_node;
- unsigned int state;
struct pmu pmu;
};
@@ -275,13 +306,25 @@ static int arm_cmn_xyidbits(const struct arm_cmn *cmn)
static struct arm_cmn_nodeid arm_cmn_nid(const struct arm_cmn *cmn, u16 id)
{
struct arm_cmn_nodeid nid;
- int bits = arm_cmn_xyidbits(cmn);
- nid.x = CMN_NODEID_X(id, bits);
- nid.y = CMN_NODEID_Y(id, bits);
- nid.port = CMN_NODEID_PID(id);
- nid.dev = CMN_NODEID_DEVID(id);
+ if (cmn->num_xps == 1) {
+ nid.x = 0;
+ nid.y = 0;
+ nid.port = CMN_NODEID_1x1_PID(id);
+ nid.dev = CMN_NODEID_DEVID(id);
+ } else {
+ int bits = arm_cmn_xyidbits(cmn);
+ nid.x = CMN_NODEID_X(id, bits);
+ nid.y = CMN_NODEID_Y(id, bits);
+ if (cmn->ports_used & 0xc) {
+ nid.port = CMN_NODEID_EXT_PID(id);
+ nid.dev = CMN_NODEID_EXT_DEVID(id);
+ } else {
+ nid.port = CMN_NODEID_PID(id);
+ nid.dev = CMN_NODEID_DEVID(id);
+ }
+ }
return nid;
}
@@ -310,6 +353,7 @@ struct arm_cmn_hw_event {
unsigned int dtc_idx;
u8 dtcs_used;
u8 num_dns;
+ u8 dtm_offset;
};
#define for_each_hw_dn(hw, dn, i) \
@@ -354,7 +398,8 @@ struct arm_cmn_format_attr {
.occupid = _occupid, \
}})[0].attr.attr)
-static bool arm_cmn_is_occup_event(enum cmn_node_type type, unsigned int id)
+static bool arm_cmn_is_occup_event(enum cmn_model model,
+ enum cmn_node_type type, unsigned int id)
{
return (type == CMN_TYPE_DVM && id == 0x05) ||
(type == CMN_TYPE_HNF && id == 0x0f);
@@ -375,9 +420,9 @@ static ssize_t arm_cmn_event_show(struct device *dev,
"type=0x%x,eventid=0x%x,wp_dev_sel=?,wp_chn_sel=?,wp_grp=?,wp_val=?,wp_mask=?\n",
eattr->type, eattr->eventid);
- if (arm_cmn_is_occup_event(eattr->type, eattr->eventid))
- return snprintf(buf, PAGE_SIZE, "type=0x%x,eventid=0x%x,occupid=0x%x\n",
- eattr->type, eattr->eventid, eattr->occupid);
+ if (arm_cmn_is_occup_event(eattr->model, eattr->type, eattr->eventid))
+ return sysfs_emit(buf, "type=0x%x,eventid=0x%x,occupid=0x%x\n",
+ eattr->type, eattr->eventid, eattr->occupid);
return snprintf(buf, PAGE_SIZE, "type=0x%x,eventid=0x%x\n",
eattr->type, eattr->eventid);
@@ -390,25 +435,36 @@ static umode_t arm_cmn_event_attr_is_visible(struct kobject *kobj,
struct device *dev = kobj_to_dev(kobj);
struct arm_cmn *cmn = to_cmn(dev_get_drvdata(dev));
struct arm_cmn_event_attr *eattr;
- enum cmn_node_type type;
eattr = container_of(attr, typeof(*eattr), attr.attr);
- type = eattr->type;
if (!(eattr->model & cmn->model))
return 0;
- /* Watchpoints aren't nodes */
- if (type == CMN_TYPE_WP)
- type = CMN_TYPE_XP;
+ /* Watchpoints aren't nodes, so avoid confusion */
+ if (eattr->type == CMN_TYPE_WP)
+ return attr->mode;
+
+ /* Hide XP events for unused interfaces/channels */
+ if (eattr->type == CMN_TYPE_XP) {
+ unsigned int intf = (eattr->eventid >> 2) & 7;
+ unsigned int chan = eattr->eventid >> 5;
+
+ if ((intf & 4) && !(cmn->ports_used & BIT(intf & 3)))
+ return 0;
+
+ if ((chan == 5 && cmn->rsp_vc_num < 2) ||
+ (chan == 6 && cmn->dat_vc_num < 2))
+ return 0;
+ }
/* Revision-specific differences */
if (cmn->model == CMN600 && cmn->rev < CMN600_R1P2) {
- if (type == CMN_TYPE_HNF && eattr->eventid == 0x1b)
+ if (eattr->type == CMN_TYPE_HNF && eattr->eventid == 0x1b)
return 0;
}
- if (!arm_cmn_node(cmn, type))
+ if (!arm_cmn_node(cmn, eattr->type))
return 0;
return attr->mode;
@@ -669,7 +725,8 @@ static u32 arm_cmn_wp_config(struct perf_event *event)
config = FIELD_PREP(CMN_DTM_WPn_CONFIG_WP_DEV_SEL, dev) |
FIELD_PREP(CMN_DTM_WPn_CONFIG_WP_CHN_SEL, chn) |
FIELD_PREP(CMN_DTM_WPn_CONFIG_WP_GRP, grp) |
- FIELD_PREP(CMN_DTM_WPn_CONFIG_WP_EXCLUSIVE, exc);
+ FIELD_PREP(CMN_DTM_WPn_CONFIG_WP_EXCLUSIVE, exc) |
+ FIELD_PREP(CMN_DTM_WPn_CONFIG_WP_DEV_SEL2, dev >> 1);
if (combine && !grp)
config |= CMN_DTM_WPn_CONFIG_WP_COMBINE;
@@ -712,7 +769,7 @@ static u64 arm_cmn_read_dtm(struct arm_cmn *cmn, struct arm_cmn_hw_event *hw,
offset = snapshot ? CMN_DTM_PMEVCNTSR : CMN_DTM_PMEVCNT;
for_each_hw_dn(hw, dn, i) {
if (dtm != &cmn->dtms[dn->dtm]) {
- dtm = &cmn->dtms[dn->dtm];
+ dtm = &cmn->dtms[dn->dtm] + hw->dtm_offset;
reg = readq_relaxed(dtm->base + offset);
}
dtm_idx = arm_cmn_get_index(hw->dtm_idx, i);
@@ -800,8 +857,10 @@ static void arm_cmn_event_start(struct perf_event *event, int flags)
u64 mask = CMN_EVENT_WP_MASK(event);
for_each_hw_dn(hw, dn, i) {
- writeq_relaxed(val, dn->pmu_base + CMN_DTM_WPn_VAL(wp_idx));
- writeq_relaxed(mask, dn->pmu_base + CMN_DTM_WPn_MASK(wp_idx));
+ void __iomem *base = dn->pmu_base + CMN_DTM_OFFSET(hw->dtm_offset);
+
+ writeq_relaxed(val, base + CMN_DTM_WPn_VAL(wp_idx));
+ writeq_relaxed(mask, base + CMN_DTM_WPn_MASK(wp_idx));
}
} else for_each_hw_dn(hw, dn, i) {
int dtm_idx = arm_cmn_get_index(hw->dtm_idx, i);
@@ -826,8 +885,10 @@ static void arm_cmn_event_stop(struct perf_event *event, int flags)
int wp_idx = arm_cmn_wp_idx(event);
for_each_hw_dn(hw, dn, i) {
- writeq_relaxed(0, dn->pmu_base + CMN_DTM_WPn_MASK(wp_idx));
- writeq_relaxed(~0ULL, dn->pmu_base + CMN_DTM_WPn_VAL(wp_idx));
+ void __iomem *base = dn->pmu_base + CMN_DTM_OFFSET(hw->dtm_offset);
+
+ writeq_relaxed(0, base + CMN_DTM_WPn_MASK(wp_idx));
+ writeq_relaxed(~0ULL, base + CMN_DTM_WPn_VAL(wp_idx));
}
} else for_each_hw_dn(hw, dn, i) {
int dtm_idx = arm_cmn_get_index(hw->dtm_idx, i);
@@ -847,7 +908,8 @@ struct arm_cmn_val {
bool cycles;
};
-static void arm_cmn_val_add_event(struct arm_cmn_val *val, struct perf_event *event)
+static void arm_cmn_val_add_event(struct arm_cmn *cmn, struct arm_cmn_val *val,
+ struct perf_event *event)
{
struct arm_cmn_hw_event *hw = to_cmn_hw(event);
struct arm_cmn_node *dn;
@@ -865,7 +927,7 @@ static void arm_cmn_val_add_event(struct arm_cmn_val *val, struct perf_event *ev
}
val->dtc_count++;
- if (arm_cmn_is_occup_event(type, CMN_EVENT_EVENTID(event)))
+ if (arm_cmn_is_occup_event(cmn->model, type, CMN_EVENT_EVENTID(event)))
occupid = CMN_EVENT_OCCUPID(event) + 1;
else
occupid = 0;
@@ -884,7 +946,7 @@ static void arm_cmn_val_add_event(struct arm_cmn_val *val, struct perf_event *ev
}
}
-static int arm_cmn_validate_group(struct perf_event *event)
+static int arm_cmn_validate_group(struct arm_cmn *cmn, struct perf_event *event)
{
struct arm_cmn_hw_event *hw = to_cmn_hw(event);
struct arm_cmn_node *dn;
@@ -904,9 +966,9 @@ static int arm_cmn_validate_group(struct perf_event *event)
if (!val)
return -ENOMEM;
- arm_cmn_val_add_event(val, leader);
+ arm_cmn_val_add_event(cmn, val, leader);
for_each_sibling_event(sibling, leader)
- arm_cmn_val_add_event(val, sibling);
+ arm_cmn_val_add_event(cmn, val, sibling);
type = CMN_EVENT_TYPE(event);
if (type == CMN_TYPE_DTC) {
@@ -917,7 +979,7 @@ static int arm_cmn_validate_group(struct perf_event *event)
if (val->dtc_count == CMN_DT_NUM_COUNTERS)
goto done;
- if (arm_cmn_is_occup_event(type, CMN_EVENT_EVENTID(event)))
+ if (arm_cmn_is_occup_event(cmn->model, type, CMN_EVENT_EVENTID(event)))
occupid = CMN_EVENT_OCCUPID(event) + 1;
else
occupid = 0;
@@ -980,6 +1042,9 @@ static int arm_cmn_event_init(struct perf_event *event)
eventid = CMN_EVENT_EVENTID(event);
if (eventid != CMN_WP_UP && eventid != CMN_WP_DOWN)
return -EINVAL;
+ /* ...but the DTM may depend on which port we're watching */
+ if (cmn->multi_dtm)
+ hw->dtm_offset = CMN_EVENT_WP_DEV_SEL(event) / 2;
}
bynodeid = CMN_EVENT_BYNODEID(event);
@@ -1007,7 +1072,7 @@ static int arm_cmn_event_init(struct perf_event *event)
return -EINVAL;
}
- return arm_cmn_validate_group(event);
+ return arm_cmn_validate_group(cmn, event);
}
static void arm_cmn_event_clear(struct arm_cmn *cmn, struct perf_event *event,
@@ -1017,13 +1082,13 @@ static void arm_cmn_event_clear(struct arm_cmn *cmn, struct perf_event *event,
enum cmn_node_type type = CMN_EVENT_TYPE(event);
while (i--) {
- struct arm_cmn_dtm *dtm = &cmn->dtms[hw->dn[i].dtm];
+ struct arm_cmn_dtm *dtm = &cmn->dtms[hw->dn[i].dtm] + hw->dtm_offset;
unsigned int dtm_idx = arm_cmn_get_index(hw->dtm_idx, i);
if (type == CMN_TYPE_WP)
dtm->wp_event[arm_cmn_wp_idx(event)] = -1;
- if (arm_cmn_is_occup_event(type, CMN_EVENT_EVENTID(event)))
+ if (arm_cmn_is_occup_event(cmn->model, type, CMN_EVENT_EVENTID(event)))
hw->dn[i].occupid_count--;
dtm->pmu_config_low &= ~CMN__PMEVCNT_PAIRED(dtm_idx);
@@ -1069,7 +1134,7 @@ static int arm_cmn_event_add(struct perf_event *event, int flags)
/* ...then the local counters to feed it. */
for_each_hw_dn(hw, dn, i) {
- struct arm_cmn_dtm *dtm = &cmn->dtms[dn->dtm];
+ struct arm_cmn_dtm *dtm = &cmn->dtms[dn->dtm] + hw->dtm_offset;
unsigned int dtm_idx, shift;
u64 reg;
@@ -1098,10 +1163,13 @@ static int arm_cmn_event_add(struct perf_event *event, int flags)
} else {
struct arm_cmn_nodeid nid = arm_cmn_nid(cmn, dn->id);
+ if (cmn->multi_dtm)
+ nid.port %= 2;
+
input_sel = CMN__PMEVCNT0_INPUT_SEL_DEV + dtm_idx +
(nid.port << 4) + (nid.dev << 2);
- if (arm_cmn_is_occup_event(type, CMN_EVENT_EVENTID(event))) {
+ if (arm_cmn_is_occup_event(cmn->model, type, CMN_EVENT_EVENTID(event))) {
u8 occupid = CMN_EVENT_OCCUPID(event);
if (dn->occupid_count == 0) {
@@ -1283,11 +1351,11 @@ static int arm_cmn_init_irqs(struct arm_cmn *cmn)
return 0;
}
-static void arm_cmn_init_dtm(struct arm_cmn_dtm *dtm, struct arm_cmn_node *xp)
+static void arm_cmn_init_dtm(struct arm_cmn_dtm *dtm, struct arm_cmn_node *xp, int idx)
{
int i;
- dtm->base = xp->pmu_base;
+ dtm->base = xp->pmu_base + CMN_DTM_OFFSET(idx);
dtm->pmu_config_low = CMN_DTM_PMU_CONFIG_PMU_EN;
for (i = 0; i < 4; i++) {
dtm->wp_event[i] = -1;
@@ -1345,6 +1413,8 @@ static int arm_cmn_init_dtcs(struct arm_cmn *cmn)
xp = arm_cmn_node_to_xp(cmn, dn);
dn->dtm = xp->dtm;
+ if (cmn->multi_dtm)
+ dn->dtm += arm_cmn_nid(cmn, dn->id).port / 2;
if (dn->type == CMN_TYPE_DTC) {
int err;
@@ -1408,6 +1478,11 @@ static int arm_cmn_discover(struct arm_cmn *cmn, unsigned int rgn_offset)
reg = readl_relaxed(cfg_region + CMN_CFGM_PERIPH_ID_2);
cmn->rev = FIELD_GET(CMN_CFGM_PID2_REVISION, reg);
+ reg = readq_relaxed(cfg_region + CMN_CFGM_INFO_GLOBAL);
+ cmn->multi_dtm = reg & CMN_INFO_MULTIPLE_DTM_EN;
+ cmn->rsp_vc_num = FIELD_GET(CMN_INFO_RSP_VC_NUM, reg);
+ cmn->dat_vc_num = FIELD_GET(CMN_INFO_DAT_VC_NUM, reg);
+
reg = readq_relaxed(cfg_region + CMN_CHILD_INFO);
child_count = FIELD_GET(CMN_CI_CHILD_COUNT, reg);
child_poff = FIELD_GET(CMN_CI_CHILD_PTR_OFFSET, reg);
@@ -1429,7 +1504,11 @@ static int arm_cmn_discover(struct arm_cmn *cmn, unsigned int rgn_offset)
if (!dn)
return -ENOMEM;
- dtm = devm_kcalloc(cmn->dev, cmn->num_xps, sizeof(*dtm), GFP_KERNEL);
+ /* Initial safe upper bound on DTMs for any possible mesh layout */
+ i = cmn->num_xps;
+ if (cmn->multi_dtm)
+ i += cmn->num_xps + 1;
+ dtm = devm_kcalloc(cmn->dev, i, sizeof(*dtm), GFP_KERNEL);
if (!dtm)
return -ENOMEM;
@@ -1439,6 +1518,7 @@ static int arm_cmn_discover(struct arm_cmn *cmn, unsigned int rgn_offset)
for (i = 0; i < cmn->num_xps; i++) {
void __iomem *xp_region = cmn->base + xp_offset[i];
struct arm_cmn_node *xp = dn++;
+ unsigned int xp_ports = 0;
arm_cmn_init_node_info(cmn, xp_offset[i], xp);
/*
@@ -1450,9 +1530,39 @@ static int arm_cmn_discover(struct arm_cmn *cmn, unsigned int rgn_offset)
if (xp->id == (1 << 3))
cmn->mesh_x = xp->logid;
- xp->dtc = 0xf;
+ if (cmn->model == CMN600)
+ xp->dtc = 0xf;
+ else
+ xp->dtc = 1 << readl_relaxed(xp_region + CMN_DTM_UNIT_INFO);
+
xp->dtm = dtm - cmn->dtms;
- arm_cmn_init_dtm(dtm++, xp);
+ arm_cmn_init_dtm(dtm++, xp, 0);
+ /*
+ * Keeping track of connected ports will let us filter out
+ * unnecessary XP events easily. We can also reliably infer the
+ * "extra device ports" configuration for the node ID format
+ * from this, since in that case we will see at least one XP
+ * with port 2 connected, for the HN-D.
+ */
+ if (readq_relaxed(xp_region + CMN_MXP__CONNECT_INFO_P0))
+ xp_ports |= BIT(0);
+ if (readq_relaxed(xp_region + CMN_MXP__CONNECT_INFO_P1))
+ xp_ports |= BIT(1);
+ if (readq_relaxed(xp_region + CMN_MXP__CONNECT_INFO_P2))
+ xp_ports |= BIT(2);
+ if (readq_relaxed(xp_region + CMN_MXP__CONNECT_INFO_P3))
+ xp_ports |= BIT(3);
+ if (readq_relaxed(xp_region + CMN_MXP__CONNECT_INFO_P4))
+ xp_ports |= BIT(4);
+ if (readq_relaxed(xp_region + CMN_MXP__CONNECT_INFO_P5))
+ xp_ports |= BIT(5);
+
+ if (cmn->multi_dtm && (xp_ports & 0xc))
+ arm_cmn_init_dtm(dtm++, xp, 1);
+ if (cmn->multi_dtm && (xp_ports & 0x30))
+ arm_cmn_init_dtm(dtm++, xp, 2);
+
+ cmn->ports_used |= xp_ports;
reg = readq_relaxed(xp_region + CMN_CHILD_INFO);
child_count = FIELD_GET(CMN_CI_CHILD_COUNT, reg);
@@ -1488,11 +1598,14 @@ static int arm_cmn_discover(struct arm_cmn *cmn, unsigned int rgn_offset)
case CMN_TYPE_SBSX:
case CMN_TYPE_RNI:
case CMN_TYPE_RND:
+ case CMN_TYPE_MTSX:
case CMN_TYPE_CXRA:
case CMN_TYPE_CXHA:
dn++;
break;
/* Nothing to see here */
+ case CMN_TYPE_MPAM_S:
+ case CMN_TYPE_MPAM_NS:
case CMN_TYPE_RNSAM:
case CMN_TYPE_CXLA:
break;
@@ -1512,6 +1625,11 @@ static int arm_cmn_discover(struct arm_cmn *cmn, unsigned int rgn_offset)
if (dn)
cmn->dns = dn;
+ sz = (void *)dtm - (void *)cmn->dtms;
+ dtm = devm_krealloc(cmn->dev, cmn->dtms, sz, GFP_KERNEL);
+ if (dtm)
+ cmn->dtms = dtm;
+
/*
* If mesh_x wasn't set during discovery then we never saw
* an XP at (0,1), thus we must have an Nx1 configuration.
@@ -1520,9 +1638,15 @@ static int arm_cmn_discover(struct arm_cmn *cmn, unsigned int rgn_offset)
cmn->mesh_x = cmn->num_xps;
cmn->mesh_y = cmn->num_xps / cmn->mesh_x;
+ /* 1x1 config plays havoc with XP event encodings */
+ if (cmn->num_xps == 1)
+ dev_warn(cmn->dev, "1x1 config not fully supported, translate XP events manually\n");
+
dev_dbg(cmn->dev, "model %d, periph_id_2 revision %d\n", cmn->model, cmn->rev);
- dev_dbg(cmn->dev, "mesh %dx%d, ID width %d\n",
- cmn->mesh_x, cmn->mesh_y, arm_cmn_xyidbits(cmn));
+ reg = cmn->ports_used;
+ dev_dbg(cmn->dev, "mesh %dx%d, ID width %d, ports %6pbl%s\n",
+ cmn->mesh_x, cmn->mesh_y, arm_cmn_xyidbits(cmn), &reg,
+ cmn->multi_dtm ? ", multi-DTM" : "");
return 0;
}
--
2.25.1
meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0037-perf-arm-cmn-Add-CI-700-Support.patch
+150
View File
@@ -0,0 +1,150 @@
From f5d0979c2385c3ef43d6f2af07c14ee897835e2c Mon Sep 17 00:00:00 2001
From: Robin Murphy <robin.murphy@arm.com>
Date: Fri, 3 Dec 2021 11:45:02 +0000
Subject: [PATCH 14/14] perf/arm-cmn: Add CI-700 Support
Add the identifiers and events for the CI-700 coherent interconnect.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/28f566ab23a83733c6c9ef9414c010b760b4549c.1638530442.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
Upstream-Status: Backport [https://lore.kernel.org/r/28f566ab23a83733c6c9ef9414c010b760b4549c.1638530442.git.robin.murphy@arm.com]
Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/arm-cmn.c | 57 +++++++++++++++++++++++++++++++++++++++---
1 file changed, 53 insertions(+), 4 deletions(-)
diff --git a/drivers/perf/arm-cmn.c b/drivers/perf/arm-cmn.c
index 871c86687379..e0f78b6c643c 100644
--- a/drivers/perf/arm-cmn.c
+++ b/drivers/perf/arm-cmn.c
@@ -175,6 +175,7 @@
enum cmn_model {
CMN_ANY = -1,
CMN600 = 1,
+ CI700 = 2,
};
/* CMN-600 r0px shouldn't exist in silicon, thankfully */
@@ -186,6 +187,9 @@ enum cmn_revision {
CMN600_R2P0,
CMN600_R3P0,
CMN600_R3P1,
+ CI700_R0P0 = 0,
+ CI700_R1P0,
+ CI700_R2P0,
};
enum cmn_node_type {
@@ -401,8 +405,10 @@ struct arm_cmn_format_attr {
static bool arm_cmn_is_occup_event(enum cmn_model model,
enum cmn_node_type type, unsigned int id)
{
- return (type == CMN_TYPE_DVM && id == 0x05) ||
- (type == CMN_TYPE_HNF && id == 0x0f);
+ if (type == CMN_TYPE_DVM)
+ return (model == CMN600 && id == 0x05) ||
+ (model == CI700 && id == 0x0c);
+ return type == CMN_TYPE_HNF && id == 0x0f;
}
static ssize_t arm_cmn_event_show(struct device *dev,
@@ -497,14 +503,19 @@ static umode_t arm_cmn_event_attr_is_visible(struct kobject *kobj,
__CMN_EVENT_XP(n_##_name, (_event) | (2 << 2)), \
__CMN_EVENT_XP(s_##_name, (_event) | (3 << 2)), \
__CMN_EVENT_XP(p0_##_name, (_event) | (4 << 2)), \
- __CMN_EVENT_XP(p1_##_name, (_event) | (5 << 2))
+ __CMN_EVENT_XP(p1_##_name, (_event) | (5 << 2)), \
+ __CMN_EVENT_XP(p2_##_name, (_event) | (6 << 2)), \
+ __CMN_EVENT_XP(p3_##_name, (_event) | (7 << 2))
/* Good thing there are only 3 fundamental XP events... */
#define CMN_EVENT_XP(_name, _event) \
_CMN_EVENT_XP(req_##_name, (_event) | (0 << 5)), \
_CMN_EVENT_XP(rsp_##_name, (_event) | (1 << 5)), \
_CMN_EVENT_XP(snp_##_name, (_event) | (2 << 5)), \
- _CMN_EVENT_XP(dat_##_name, (_event) | (3 << 5))
+ _CMN_EVENT_XP(dat_##_name, (_event) | (3 << 5)), \
+ _CMN_EVENT_XP(pub_##_name, (_event) | (4 << 5)), \
+ _CMN_EVENT_XP(rsp2_##_name, (_event) | (5 << 5)), \
+ _CMN_EVENT_XP(dat2_##_name, (_event) | (6 << 5))
static struct attribute *arm_cmn_event_attrs[] = {
@@ -522,6 +533,20 @@ static struct attribute *arm_cmn_event_attrs[] = {
_CMN_EVENT_DVM(CMN600, rxreq_trk_occupancy_all, 0x05, 0),
_CMN_EVENT_DVM(CMN600, rxreq_trk_occupancy_dvmop, 0x05, 1),
_CMN_EVENT_DVM(CMN600, rxreq_trk_occupancy_dvmsync, 0x05, 2),
+ CMN_EVENT_DVM(CI700, dvmop_tlbi, 0x01),
+ CMN_EVENT_DVM(CI700, dvmop_bpi, 0x02),
+ CMN_EVENT_DVM(CI700, dvmop_pici, 0x03),
+ CMN_EVENT_DVM(CI700, dvmop_vici, 0x04),
+ CMN_EVENT_DVM(CI700, dvmsync, 0x05),
+ CMN_EVENT_DVM(CI700, vmid_filtered, 0x06),
+ CMN_EVENT_DVM(CI700, rndop_filtered, 0x07),
+ CMN_EVENT_DVM(CI700, retry, 0x08),
+ CMN_EVENT_DVM(CI700, txsnp_flitv, 0x09),
+ CMN_EVENT_DVM(CI700, txsnp_stall, 0x0a),
+ CMN_EVENT_DVM(CI700, trkfull, 0x0b),
+ _CMN_EVENT_DVM(CI700, trk_occupancy_all, 0x0c, 0),
+ _CMN_EVENT_DVM(CI700, trk_occupancy_dvmop, 0x0c, 1),
+ _CMN_EVENT_DVM(CI700, trk_occupancy_dvmsync, 0x0c, 2),
CMN_EVENT_HNF(CMN_ANY, cache_miss, 0x01),
CMN_EVENT_HNF(CMN_ANY, slc_sf_cache_access, 0x02),
@@ -558,6 +583,9 @@ static struct attribute *arm_cmn_event_attrs[] = {
CMN_EVENT_HNF(CMN_ANY, stash_snp_sent, 0x1d),
CMN_EVENT_HNF(CMN_ANY, stash_data_pull, 0x1e),
CMN_EVENT_HNF(CMN_ANY, snp_fwded, 0x1f),
+ CMN_EVENT_HNF(CI700, atomic_fwd, 0x20),
+ CMN_EVENT_HNF(CI700, mpam_hardlim, 0x21),
+ CMN_EVENT_HNF(CI700, mpam_softlim, 0x22),
CMN_EVENT_HNI(rrt_rd_occ_cnt_ovfl, 0x20),
CMN_EVENT_HNI(rrt_wr_occ_cnt_ovfl, 0x21),
@@ -598,6 +626,7 @@ static struct attribute *arm_cmn_event_attrs[] = {
CMN_EVENT_SBSX(CMN_ANY, wdb_occ_cnt_ovfl, 0x14),
CMN_EVENT_SBSX(CMN_ANY, rd_axi_trkr_occ_cnt_ovfl, 0x15),
CMN_EVENT_SBSX(CMN_ANY, cmo_axi_trkr_occ_cnt_ovfl, 0x16),
+ CMN_EVENT_SBSX(CI700, rdb_occ_cnt_ovfl, 0x17),
CMN_EVENT_SBSX(CMN_ANY, arvalid_no_arready, 0x21),
CMN_EVENT_SBSX(CMN_ANY, awvalid_no_awready, 0x22),
CMN_EVENT_SBSX(CMN_ANY, wvalid_no_wready, 0x23),
@@ -624,6 +653,25 @@ static struct attribute *arm_cmn_event_attrs[] = {
CMN_EVENT_RNID(CMN600, rdb_replay, 0x12),
CMN_EVENT_RNID(CMN600, rdb_hybrid, 0x13),
CMN_EVENT_RNID(CMN600, rdb_ord, 0x14),
+ CMN_EVENT_RNID(CI700, padb_occ_ovfl, 0x11),
+ CMN_EVENT_RNID(CI700, rpdb_occ_ovfl, 0x12),
+ CMN_EVENT_RNID(CI700, rrt_occup_ovfl_slice1, 0x13),
+ CMN_EVENT_RNID(CI700, rrt_occup_ovfl_slice2, 0x14),
+ CMN_EVENT_RNID(CI700, rrt_occup_ovfl_slice3, 0x15),
+ CMN_EVENT_RNID(CI700, wrt_throttled, 0x16),
+
+ CMN_EVENT_MTSX(tc_lookup, 0x01),
+ CMN_EVENT_MTSX(tc_fill, 0x02),
+ CMN_EVENT_MTSX(tc_miss, 0x03),
+ CMN_EVENT_MTSX(tdb_forward, 0x04),
+ CMN_EVENT_MTSX(tcq_hazard, 0x05),
+ CMN_EVENT_MTSX(tcq_rd_alloc, 0x06),
+ CMN_EVENT_MTSX(tcq_wr_alloc, 0x07),
+ CMN_EVENT_MTSX(tcq_cmo_alloc, 0x08),
+ CMN_EVENT_MTSX(axi_rd_req, 0x09),
+ CMN_EVENT_MTSX(axi_wr_req, 0x0a),
+ CMN_EVENT_MTSX(tcq_occ_cnt_ovfl, 0x0b),
+ CMN_EVENT_MTSX(tdb_occ_cnt_ovfl, 0x0c),
NULL
};
@@ -1773,6 +1821,7 @@ static int arm_cmn_remove(struct platform_device *pdev)
#ifdef CONFIG_OF
static const struct of_device_id arm_cmn_of_match[] = {
{ .compatible = "arm,cmn-600", .data = (void *)CMN600 },
+ { .compatible = "arm,ci-700", .data = (void *)CI700 },
{}
};
MODULE_DEVICE_TABLE(of, arm_cmn_of_match);
--
2.25.1
tatus
+168
View File
@@ -0,0 +1,168 @@
diff --git a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0024-perf-arm-cmn-Use-irq_set_affinity.patch b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0024-perf-arm-cmn-Use-irq_set_affinity.patch
index 0defb4f..e8674c3 100644
--- a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0024-perf-arm-cmn-Use-irq_set_affinity.patch
+++ b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0024-perf-arm-cmn-Use-irq_set_affinity.patch
@@ -25,6 +25,7 @@ Link: https://lore.kernel.org/r/20210518093118.277228577@linutronix.de
Signed-off-by: Will Deacon <will@kernel.org>

Upstream-Status: Backport [https://lore.kernel.org/r/20210518093118.277228577@linutronix.de]
+Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/arm-cmn.c | 9 ++-------
1 file changed, 2 insertions(+), 7 deletions(-)
diff --git a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0025-perf-arm-cmn-Fix-CPU-hotplug-unregistration.patch b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0025-perf-arm-cmn-Fix-CPU-hotplug-unregistration.patch
index 66c0582..e06fb88 100644
--- a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0025-perf-arm-cmn-Fix-CPU-hotplug-unregistration.patch
+++ b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0025-perf-arm-cmn-Fix-CPU-hotplug-unregistration.patch
@@ -13,6 +13,7 @@ Fixes: 0ba64770a2f2 ("perf: Add Arm CMN-600 PMU driver")
Signed-off-by: Robin Murphy <robin.murphy@arm.com>

Upstream-Status: Backport [https://lore.kernel.org/r/2c221d745544774e4b07583b65b5d4d94f7e0fe4.1638530442.git.robin.murphy@arm.com]
+Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/arm-cmn.c | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0026-perf-arm-cmn-Account-for-NUMA-affinity.patch b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0026-perf-arm-cmn-Account-for-NUMA-affinity.patch
index 2a1bbde..f93bff7 100644
--- a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0026-perf-arm-cmn-Account-for-NUMA-affinity.patch
+++ b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0026-perf-arm-cmn-Account-for-NUMA-affinity.patch
@@ -15,6 +15,7 @@ Link: https://lore.kernel.org/r/32438b0d016e0649d882d47d30ac2000484287b9.1638530
Signed-off-by: Will Deacon <will@kernel.org>

Upstream-Status: Backport [https://lore.kernel.org/r/32438b0d016e0649d882d47d30ac2000484287b9.1638530442.git.robin.murphy@arm.com]
+Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/arm-cmn.c | 51 +++++++++++++++++++++++++++++++-----------
1 file changed, 38 insertions(+), 13 deletions(-)
diff --git a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0027-perf-arm-cmn-Drop-compile-test-restriction.patch b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0027-perf-arm-cmn-Drop-compile-test-restriction.patch
index 47b24e9..1a3e2d9 100644
--- a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0027-perf-arm-cmn-Drop-compile-test-restriction.patch
+++ b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0027-perf-arm-cmn-Drop-compile-test-restriction.patch
@@ -15,6 +15,7 @@ Link: https://lore.kernel.org/r/baee9ee0d0bdad8aaeb70f5a4b98d8fd4b1f5786.1638530
Signed-off-by: Will Deacon <will@kernel.org>

Upstream-Status: Backport [https://lore.kernel.org/r/baee9ee0d0bdad8aaeb70f5a4b98d8fd4b1f5786.1638530442.git.robin.murphy@arm.com]
+Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/Kconfig | 2 +-
drivers/perf/arm-cmn.c | 25 +++++++++++++------------
diff --git a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0028-perf-arm-cmn-Refactor-node-ID-handling.patch b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0028-perf-arm-cmn-Refactor-node-ID-handling.patch
index 80fbc06..ce4c2e5 100644
--- a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0028-perf-arm-cmn-Refactor-node-ID-handling.patch
+++ b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0028-perf-arm-cmn-Refactor-node-ID-handling.patch
@@ -15,6 +15,7 @@ Link: https://lore.kernel.org/r/a2242a8c3c96056c13a04ae87bf2047e5e64d2d9.1638530
Signed-off-by: Will Deacon <will@kernel.org>

Upstream-Status: Backport [https://lore.kernel.org/r/a2242a8c3c96056c13a04ae87bf2047e5e64d2d9.1638530442.git.robin.murphy@arm.com]
+Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/arm-cmn.c | 94 +++++++++++++++++++++++++-----------------
1 file changed, 56 insertions(+), 38 deletions(-)
diff --git a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0029-perf-arm-cmn-Streamline-node-iteration.patch b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0029-perf-arm-cmn-Streamline-node-iteration.patch
index 7b86023..fbe49b2 100644
--- a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0029-perf-arm-cmn-Streamline-node-iteration.patch
+++ b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0029-perf-arm-cmn-Streamline-node-iteration.patch
@@ -15,6 +15,7 @@ Link: https://lore.kernel.org/r/ee0c9eda9a643f46001ac43aadf3f0b1fd5660dd.1638530
Signed-off-by: Will Deacon <will@kernel.org>

Upstream-Status: Backport [https://lore.kernel.org/r/ee0c9eda9a643f46001ac43aadf3f0b1fd5660dd.1638530442.git.robin.murphy@arm.com]
+Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/arm-cmn.c | 33 ++++++++++++++++++++-------------
1 file changed, 20 insertions(+), 13 deletions(-)
diff --git a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0030-drivers-perf-arm-cmn-Add-space-after.patch b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0030-drivers-perf-arm-cmn-Add-space-after.patch
index d01ff04..3b11192 100644
--- a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0030-drivers-perf-arm-cmn-Add-space-after.patch
+++ b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0030-drivers-perf-arm-cmn-Add-space-after.patch
@@ -11,6 +11,7 @@ Signed-off-by: Junhao He <hejunhao2@hisilicon.com>
Signed-off-by: Jay Fang <f.fangjian@huawei.com>

Upstream-Status: Backport [https://lore.kernel.org/all/1620736054-58412-4-git-send-email-f.fangjian@huawei.com]
+Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/arm-cmn.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0031-perf-arm-cmn-Refactor-DTM-handling.patch b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0031-perf-arm-cmn-Refactor-DTM-handling.patch
index 3a37287..6a68a79 100644
--- a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0031-perf-arm-cmn-Refactor-DTM-handling.patch
+++ b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0031-perf-arm-cmn-Refactor-DTM-handling.patch
@@ -12,6 +12,7 @@ Link: https://lore.kernel.org/r/9cca18b1b98f482df7f1aaf3d3213e7f39500423.1638530
Signed-off-by: Will Deacon <will@kernel.org>

Upstream-Status: Backport [https://lore.kernel.org/r/9cca18b1b98f482df7f1aaf3d3213e7f39500423.1638530442.git.robin.murphy@arm.com]
+Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/arm-cmn.c | 169 +++++++++++++++++++++--------------------
1 file changed, 87 insertions(+), 82 deletions(-)
diff --git a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0032-perf-arm-cmn-Optimise-DTM-counter-reads.patch b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0032-perf-arm-cmn-Optimise-DTM-counter-reads.patch
index 3be9719..af33468 100644
--- a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0032-perf-arm-cmn-Optimise-DTM-counter-reads.patch
+++ b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0032-perf-arm-cmn-Optimise-DTM-counter-reads.patch
@@ -14,6 +14,7 @@ Link: https://lore.kernel.org/r/7777d77c2df17693cd3dabb6e268906e15238d82.1638530
Signed-off-by: Will Deacon <will@kernel.org>

Upstream-Status: Backport [https://lore.kernel.org/r/7777d77c2df17693cd3dabb6e268906e15238d82.1638530442.git.robin.murphy@arm.com]
+Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/arm-cmn.c | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)
diff --git a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0033-perf-arm-cmn-Optimise-DTC-counter-accesses.patch b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0033-perf-arm-cmn-Optimise-DTC-counter-accesses.patch
index af44f5b..56334e8 100644
--- a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0033-perf-arm-cmn-Optimise-DTC-counter-accesses.patch
+++ b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0033-perf-arm-cmn-Optimise-DTC-counter-accesses.patch
@@ -17,6 +17,7 @@ Link: https://lore.kernel.org/r/51d930fd945ef51c81f5889ccca055c302b0a1d0.1638530
Signed-off-by: Will Deacon <will@kernel.org>

Upstream-Status: Backport [https://lore.kernel.org/r/51d930fd945ef51c81f5889ccca055c302b0a1d0.1638530442.git.robin.murphy@arm.com]
+Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/arm-cmn.c | 29 ++++++++++++-----------------
1 file changed, 12 insertions(+), 17 deletions(-)
diff --git a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0034-perf-arm-cmn-Move-group-validation-data-off-stack.patch b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0034-perf-arm-cmn-Move-group-validation-data-off-stack.patch
index 90a67a8..06adc56 100644
--- a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0034-perf-arm-cmn-Move-group-validation-data-off-stack.patch
+++ b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0034-perf-arm-cmn-Move-group-validation-data-off-stack.patch
@@ -15,6 +15,7 @@ Link: https://lore.kernel.org/r/0cabff2e5839ddc0979e757c55515966f65359e4.1638530
Signed-off-by: Will Deacon <will@kernel.org>

Upstream-Status: Backport [https://lore.kernel.org/r/0cabff2e5839ddc0979e757c55515966f65359e4.1638530442.git.robin.murphy@arm.com]
+Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/arm-cmn.c | 43 ++++++++++++++++++++++++------------------
1 file changed, 25 insertions(+), 18 deletions(-)
diff --git a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0035-perf-arm-cmn-Demarcate-CMN-600-specifics.patch b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0035-perf-arm-cmn-Demarcate-CMN-600-specifics.patch
index 14c95c4..0fbc5cb 100644
--- a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0035-perf-arm-cmn-Demarcate-CMN-600-specifics.patch
+++ b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0035-perf-arm-cmn-Demarcate-CMN-600-specifics.patch
@@ -15,6 +15,7 @@ Link: https://lore.kernel.org/r/9f6368cdca4c821d801138939508a5bba54ccabb.1638530
Signed-off-by: Will Deacon <will@kernel.org>

Upstream-Status: Backport [https://lore.kernel.org/r/9f6368cdca4c821d801138939508a5bba54ccabb.1638530442.git.robin.murphy@arm.com]
+Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/arm-cmn.c | 313 +++++++++++++++++++++--------------------
1 file changed, 162 insertions(+), 151 deletions(-)
diff --git a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0036-perf-arm-cmn-Support-new-IP-features.patch b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0036-perf-arm-cmn-Support-new-IP-features.patch
index ababdcd..fa0c5d9 100644
--- a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0036-perf-arm-cmn-Support-new-IP-features.patch
+++ b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0036-perf-arm-cmn-Support-new-IP-features.patch
@@ -13,6 +13,7 @@ it around as necessary, and handling (most of) the new choices.
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/e58b495bcc7deec3882be4bac910ed0bf6979674.1638530442.git.robin.murphy@arm.com
Signed-off-by: Will Deacon <will@kernel.org>
+Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/arm-cmn.c | 222 ++++++++++++++++++++++++++++++++---------
1 file changed, 173 insertions(+), 49 deletions(-)
diff --git a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0037-perf-arm-cmn-Add-CI-700-Support.patch b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0037-perf-arm-cmn-Add-CI-700-Support.patch
index 4be16ae..a12911a 100644
--- a/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0037-perf-arm-cmn-Add-CI-700-Support.patch
+++ b/meta-arm-bsp/recipes-kernel/linux/linux-arm64-ack-5.10/tc/0037-perf-arm-cmn-Add-CI-700-Support.patch
@@ -10,6 +10,7 @@ Link: https://lore.kernel.org/r/28f566ab23a83733c6c9ef9414c010b760b4549c.1638530
Signed-off-by: Will Deacon <will@kernel.org>

Upstream-Status: Backport [https://lore.kernel.org/r/28f566ab23a83733c6c9ef9414c010b760b4549c.1638530442.git.robin.murphy@arm.com]
+Signed-off-by: Rupinderjit Singh <rupinderjit.singh@arm.com>
---
drivers/perf/arm-cmn.c | 57 +++++++++++++++++++++++++++++++++++++++---
1 file changed, 53 insertions(+), 4 deletions(-)