From: Besar Wicaksono <bwicaksono@nvidia.com>
To: <suzuki.poulose@arm.com>, <robin.murphy@arm.com>,
<catalin.marinas@arm.com>, <will@kernel.org>,
<mark.rutland@arm.com>
Cc: <linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>, <linux-tegra@vger.kernel.org>,
<sudeep.holla@arm.com>, <thanu.rangarajan@arm.com>,
<Michael.Williams@arm.com>, <treding@nvidia.com>,
<jonathanh@nvidia.com>, <vsethi@nvidia.com>,
<mathieu.poirier@linaro.org>, <mike.leach@linaro.org>,
<leo.yan@linaro.org>, Besar Wicaksono <bwicaksono@nvidia.com>
Subject: [RESEND PATCH v3 2/2] perf: coresight_pmu: Add support for NVIDIA SCF and MCF attribute
Date: Tue, 21 Jun 2022 00:50:35 -0500 [thread overview]
Message-ID: <20220621055035.31766-3-bwicaksono@nvidia.com> (raw)
In-Reply-To: <20220621055035.31766-1-bwicaksono@nvidia.com>
Add support for NVIDIA System Cache Fabric (SCF) and Memory Control
Fabric (MCF) PMU attributes for CoreSight PMU implementation in
NVIDIA devices.
Signed-off-by: Besar Wicaksono <bwicaksono@nvidia.com>
---
drivers/perf/coresight_pmu/Makefile | 3 +-
.../perf/coresight_pmu/arm_coresight_pmu.c | 4 +
.../coresight_pmu/arm_coresight_pmu_nvidia.c | 312 ++++++++++++++++++
.../coresight_pmu/arm_coresight_pmu_nvidia.h | 17 +
4 files changed, 335 insertions(+), 1 deletion(-)
create mode 100644 drivers/perf/coresight_pmu/arm_coresight_pmu_nvidia.c
create mode 100644 drivers/perf/coresight_pmu/arm_coresight_pmu_nvidia.h
diff --git a/drivers/perf/coresight_pmu/Makefile b/drivers/perf/coresight_pmu/Makefile
index a2a7a5fbbc16..181b1b0dbaa1 100644
--- a/drivers/perf/coresight_pmu/Makefile
+++ b/drivers/perf/coresight_pmu/Makefile
@@ -3,4 +3,5 @@
# SPDX-License-Identifier: GPL-2.0
obj-$(CONFIG_ARM_CORESIGHT_PMU) += \
- arm_coresight_pmu.o
+ arm_coresight_pmu.o \
+ arm_coresight_pmu_nvidia.o
diff --git a/drivers/perf/coresight_pmu/arm_coresight_pmu.c b/drivers/perf/coresight_pmu/arm_coresight_pmu.c
index ba52cc592b2d..12179d029bfd 100644
--- a/drivers/perf/coresight_pmu/arm_coresight_pmu.c
+++ b/drivers/perf/coresight_pmu/arm_coresight_pmu.c
@@ -42,6 +42,7 @@
#include <acpi/processor.h>
#include "arm_coresight_pmu.h"
+#include "arm_coresight_pmu_nvidia.h"
#define PMUNAME "arm_system_pmu"
@@ -396,6 +397,9 @@ struct impl_match {
};
static const struct impl_match impl_match[] = {
+ { .pmiidr = 0x36B,
+ .mask = PMIIDR_IMPLEMENTER_MASK,
+ .impl_init_ops = nv_coresight_init_ops },
{}
};
diff --git a/drivers/perf/coresight_pmu/arm_coresight_pmu_nvidia.c b/drivers/perf/coresight_pmu/arm_coresight_pmu_nvidia.c
new file mode 100644
index 000000000000..54f4eae4c529
--- /dev/null
+++ b/drivers/perf/coresight_pmu/arm_coresight_pmu_nvidia.c
@@ -0,0 +1,312 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES.
+ *
+ */
+
+/* Support for NVIDIA specific attributes. */
+
+#include "arm_coresight_pmu_nvidia.h"
+
+#define NV_MCF_PCIE_PORT_COUNT 10ULL
+#define NV_MCF_PCIE_FILTER_ID_MASK ((1ULL << NV_MCF_PCIE_PORT_COUNT) - 1)
+
+#define NV_MCF_GPU_PORT_COUNT 2ULL
+#define NV_MCF_GPU_FILTER_ID_MASK ((1ULL << NV_MCF_GPU_PORT_COUNT) - 1)
+
+#define NV_MCF_NVLINK_PORT_COUNT 4ULL
+#define NV_MCF_NVLINK_FILTER_ID_MASK ((1ULL << NV_MCF_NVLINK_PORT_COUNT) - 1)
+
+#define PMIIDR_PRODUCTID_MASK 0xFFF
+#define PMIIDR_PRODUCTID_SHIFT 20
+
+#define to_nv_pmu_impl(coresight_pmu) \
+ (container_of(coresight_pmu->impl.ops, struct nv_pmu_impl, ops))
+
+#define CORESIGHT_EVENT_ATTR_4_INNER(_pref, _num, _suff, _config) \
+ CORESIGHT_EVENT_ATTR(_pref##_num##_suff, _config)
+
+#define CORESIGHT_EVENT_ATTR_4(_pref, _suff, _config) \
+ CORESIGHT_EVENT_ATTR_4_INNER(_pref, _0_, _suff, _config), \
+ CORESIGHT_EVENT_ATTR_4_INNER(_pref, _1_, _suff, _config + 1), \
+ CORESIGHT_EVENT_ATTR_4_INNER(_pref, _2_, _suff, _config + 2), \
+ CORESIGHT_EVENT_ATTR_4_INNER(_pref, _3_, _suff, _config + 3)
+
+struct nv_pmu_impl {
+ struct coresight_pmu_impl_ops ops;
+ const char *name;
+ u32 filter_mask;
+ struct attribute **event_attr;
+ struct attribute **format_attr;
+};
+
+static struct attribute *scf_pmu_event_attrs[] = {
+ CORESIGHT_EVENT_ATTR(bus_cycles, 0x1d),
+
+ CORESIGHT_EVENT_ATTR(scf_cache_allocate, 0xF0),
+ CORESIGHT_EVENT_ATTR(scf_cache_refill, 0xF1),
+ CORESIGHT_EVENT_ATTR(scf_cache, 0xF2),
+ CORESIGHT_EVENT_ATTR(scf_cache_wb, 0xF3),
+
+ CORESIGHT_EVENT_ATTR_4(socket, rd_data, 0x101),
+ CORESIGHT_EVENT_ATTR_4(socket, dl_rsp, 0x105),
+ CORESIGHT_EVENT_ATTR_4(socket, wb_data, 0x109),
+ CORESIGHT_EVENT_ATTR_4(socket, ev_rsp, 0x10d),
+ CORESIGHT_EVENT_ATTR_4(socket, prb_data, 0x111),
+
+ CORESIGHT_EVENT_ATTR_4(socket, rd_outstanding, 0x115),
+ CORESIGHT_EVENT_ATTR_4(socket, dl_outstanding, 0x119),
+ CORESIGHT_EVENT_ATTR_4(socket, wb_outstanding, 0x11d),
+ CORESIGHT_EVENT_ATTR_4(socket, wr_outstanding, 0x121),
+ CORESIGHT_EVENT_ATTR_4(socket, ev_outstanding, 0x125),
+ CORESIGHT_EVENT_ATTR_4(socket, prb_outstanding, 0x129),
+
+ CORESIGHT_EVENT_ATTR_4(socket, rd_access, 0x12d),
+ CORESIGHT_EVENT_ATTR_4(socket, dl_access, 0x131),
+ CORESIGHT_EVENT_ATTR_4(socket, wb_access, 0x135),
+ CORESIGHT_EVENT_ATTR_4(socket, wr_access, 0x139),
+ CORESIGHT_EVENT_ATTR_4(socket, ev_access, 0x13d),
+ CORESIGHT_EVENT_ATTR_4(socket, prb_access, 0x141),
+
+ CORESIGHT_EVENT_ATTR_4(ocu, gmem_rd_data, 0x145),
+ CORESIGHT_EVENT_ATTR_4(ocu, gmem_rd_access, 0x149),
+ CORESIGHT_EVENT_ATTR_4(ocu, gmem_wb_access, 0x14d),
+ CORESIGHT_EVENT_ATTR_4(ocu, gmem_rd_outstanding, 0x151),
+ CORESIGHT_EVENT_ATTR_4(ocu, gmem_wr_outstanding, 0x155),
+
+ CORESIGHT_EVENT_ATTR_4(ocu, rem_rd_data, 0x159),
+ CORESIGHT_EVENT_ATTR_4(ocu, rem_rd_access, 0x15d),
+ CORESIGHT_EVENT_ATTR_4(ocu, rem_wb_access, 0x161),
+ CORESIGHT_EVENT_ATTR_4(ocu, rem_rd_outstanding, 0x165),
+ CORESIGHT_EVENT_ATTR_4(ocu, rem_wr_outstanding, 0x169),
+
+ CORESIGHT_EVENT_ATTR(gmem_rd_data, 0x16d),
+ CORESIGHT_EVENT_ATTR(gmem_rd_access, 0x16e),
+ CORESIGHT_EVENT_ATTR(gmem_rd_outstanding, 0x16f),
+ CORESIGHT_EVENT_ATTR(gmem_dl_rsp, 0x170),
+ CORESIGHT_EVENT_ATTR(gmem_dl_access, 0x171),
+ CORESIGHT_EVENT_ATTR(gmem_dl_outstanding, 0x172),
+ CORESIGHT_EVENT_ATTR(gmem_wb_data, 0x173),
+ CORESIGHT_EVENT_ATTR(gmem_wb_access, 0x174),
+ CORESIGHT_EVENT_ATTR(gmem_wb_outstanding, 0x175),
+ CORESIGHT_EVENT_ATTR(gmem_ev_rsp, 0x176),
+ CORESIGHT_EVENT_ATTR(gmem_ev_access, 0x177),
+ CORESIGHT_EVENT_ATTR(gmem_ev_outstanding, 0x178),
+ CORESIGHT_EVENT_ATTR(gmem_wr_data, 0x179),
+ CORESIGHT_EVENT_ATTR(gmem_wr_outstanding, 0x17a),
+ CORESIGHT_EVENT_ATTR(gmem_wr_access, 0x17b),
+
+ CORESIGHT_EVENT_ATTR_4(socket, wr_data, 0x17c),
+
+ CORESIGHT_EVENT_ATTR_4(ocu, gmem_wr_data, 0x180),
+ CORESIGHT_EVENT_ATTR_4(ocu, gmem_wb_data, 0x184),
+ CORESIGHT_EVENT_ATTR_4(ocu, gmem_wr_access, 0x188),
+ CORESIGHT_EVENT_ATTR_4(ocu, gmem_wb_outstanding, 0x18c),
+
+ CORESIGHT_EVENT_ATTR_4(ocu, rem_wr_data, 0x190),
+ CORESIGHT_EVENT_ATTR_4(ocu, rem_wb_data, 0x194),
+ CORESIGHT_EVENT_ATTR_4(ocu, rem_wr_access, 0x198),
+ CORESIGHT_EVENT_ATTR_4(ocu, rem_wb_outstanding, 0x19c),
+
+ CORESIGHT_EVENT_ATTR(gmem_wr_total_bytes, 0x1a0),
+ CORESIGHT_EVENT_ATTR(remote_socket_wr_total_bytes, 0x1a1),
+ CORESIGHT_EVENT_ATTR(remote_socket_rd_data, 0x1a2),
+ CORESIGHT_EVENT_ATTR(remote_socket_rd_outstanding, 0x1a3),
+ CORESIGHT_EVENT_ATTR(remote_socket_rd_access, 0x1a4),
+
+ CORESIGHT_EVENT_ATTR(cmem_rd_data, 0x1a5),
+ CORESIGHT_EVENT_ATTR(cmem_rd_access, 0x1a6),
+ CORESIGHT_EVENT_ATTR(cmem_rd_outstanding, 0x1a7),
+ CORESIGHT_EVENT_ATTR(cmem_dl_rsp, 0x1a8),
+ CORESIGHT_EVENT_ATTR(cmem_dl_access, 0x1a9),
+ CORESIGHT_EVENT_ATTR(cmem_dl_outstanding, 0x1aa),
+ CORESIGHT_EVENT_ATTR(cmem_wb_data, 0x1ab),
+ CORESIGHT_EVENT_ATTR(cmem_wb_access, 0x1ac),
+ CORESIGHT_EVENT_ATTR(cmem_wb_outstanding, 0x1ad),
+ CORESIGHT_EVENT_ATTR(cmem_ev_rsp, 0x1ae),
+ CORESIGHT_EVENT_ATTR(cmem_ev_access, 0x1af),
+ CORESIGHT_EVENT_ATTR(cmem_ev_outstanding, 0x1b0),
+ CORESIGHT_EVENT_ATTR(cmem_wr_data, 0x1b1),
+ CORESIGHT_EVENT_ATTR(cmem_wr_outstanding, 0x1b2),
+
+ CORESIGHT_EVENT_ATTR_4(ocu, cmem_rd_data, 0x1b3),
+ CORESIGHT_EVENT_ATTR_4(ocu, cmem_rd_access, 0x1b7),
+ CORESIGHT_EVENT_ATTR_4(ocu, cmem_wb_access, 0x1bb),
+ CORESIGHT_EVENT_ATTR_4(ocu, cmem_rd_outstanding, 0x1bf),
+ CORESIGHT_EVENT_ATTR_4(ocu, cmem_wr_outstanding, 0x1c3),
+
+ CORESIGHT_EVENT_ATTR(ocu_prb_access, 0x1c7),
+ CORESIGHT_EVENT_ATTR(ocu_prb_data, 0x1c8),
+ CORESIGHT_EVENT_ATTR(ocu_prb_outstanding, 0x1c9),
+
+ CORESIGHT_EVENT_ATTR(cmem_wr_access, 0x1ca),
+
+ CORESIGHT_EVENT_ATTR_4(ocu, cmem_wr_access, 0x1cb),
+ CORESIGHT_EVENT_ATTR_4(ocu, cmem_wb_data, 0x1cf),
+ CORESIGHT_EVENT_ATTR_4(ocu, cmem_wr_data, 0x1d3),
+ CORESIGHT_EVENT_ATTR_4(ocu, cmem_wb_outstanding, 0x1d7),
+
+ CORESIGHT_EVENT_ATTR(cmem_wr_total_bytes, 0x1db),
+
+ CORESIGHT_EVENT_ATTR(cycles, CORESIGHT_PMU_EVT_CYCLES_DEFAULT),
+ NULL,
+};
+
+static struct attribute *mcf_pmu_event_attrs[] = {
+ CORESIGHT_EVENT_ATTR(rd_bytes_loc, 0x0),
+ CORESIGHT_EVENT_ATTR(rd_bytes_rem, 0x1),
+ CORESIGHT_EVENT_ATTR(wr_bytes_loc, 0x2),
+ CORESIGHT_EVENT_ATTR(wr_bytes_rem, 0x3),
+ CORESIGHT_EVENT_ATTR(total_bytes_loc, 0x4),
+ CORESIGHT_EVENT_ATTR(total_bytes_rem, 0x5),
+ CORESIGHT_EVENT_ATTR(rd_req_loc, 0x6),
+ CORESIGHT_EVENT_ATTR(rd_req_rem, 0x7),
+ CORESIGHT_EVENT_ATTR(wr_req_loc, 0x8),
+ CORESIGHT_EVENT_ATTR(wr_req_rem, 0x9),
+ CORESIGHT_EVENT_ATTR(total_req_loc, 0xa),
+ CORESIGHT_EVENT_ATTR(total_req_rem, 0xb),
+ CORESIGHT_EVENT_ATTR(rd_cum_outs_loc, 0xc),
+ CORESIGHT_EVENT_ATTR(rd_cum_outs_rem, 0xd),
+ CORESIGHT_EVENT_ATTR(cycles, CORESIGHT_PMU_EVT_CYCLES_DEFAULT),
+ NULL,
+};
+
+static struct attribute *scf_pmu_format_attrs[] = {
+ CORESIGHT_FORMAT_EVENT_ATTR,
+ NULL,
+};
+
+static struct attribute *mcf_pcie_pmu_format_attrs[] = {
+ CORESIGHT_FORMAT_EVENT_ATTR,
+ CORESIGHT_FORMAT_ATTR(root_port, "config1:0-9"),
+ NULL,
+};
+
+static struct attribute *mcf_gpu_pmu_format_attrs[] = {
+ CORESIGHT_FORMAT_EVENT_ATTR,
+ CORESIGHT_FORMAT_ATTR(gpu, "config1:0-1"),
+ NULL,
+};
+
+static struct attribute *mcf_nvlink_pmu_format_attrs[] = {
+ CORESIGHT_FORMAT_EVENT_ATTR,
+ CORESIGHT_FORMAT_ATTR(socket, "config1:0-3"),
+ NULL,
+};
+
+static struct attribute **
+nv_coresight_pmu_get_event_attrs(const struct coresight_pmu *coresight_pmu)
+{
+ const struct nv_pmu_impl *impl = to_nv_pmu_impl(coresight_pmu);
+
+ return impl->event_attr;
+}
+
+static struct attribute **
+nv_coresight_pmu_get_format_attrs(const struct coresight_pmu *coresight_pmu)
+{
+ const struct nv_pmu_impl *impl = to_nv_pmu_impl(coresight_pmu);
+
+ return impl->format_attr;
+}
+
+static const char *
+nv_coresight_pmu_get_name(const struct coresight_pmu *coresight_pmu)
+{
+ const struct nv_pmu_impl *impl = to_nv_pmu_impl(coresight_pmu);
+
+ return impl->name;
+}
+
+static u32 nv_coresight_pmu_event_filter(const struct perf_event *event)
+{
+ const struct nv_pmu_impl *impl =
+ to_nv_pmu_impl(to_coresight_pmu(event->pmu));
+ return event->attr.config1 & impl->filter_mask;
+}
+
+int nv_coresight_init_ops(struct coresight_pmu *coresight_pmu)
+{
+ u32 product_id;
+ struct device *dev;
+ struct nv_pmu_impl *impl;
+ static atomic_t pmu_idx = {0};
+
+ dev = coresight_pmu->dev;
+
+ impl = devm_kzalloc(dev, sizeof(struct nv_pmu_impl), GFP_KERNEL);
+ if (!impl)
+ return -ENOMEM;
+
+ product_id = (coresight_pmu->impl.pmiidr >> PMIIDR_PRODUCTID_SHIFT) &
+ PMIIDR_PRODUCTID_MASK;
+
+ switch (product_id) {
+ case 0x103:
+ impl->name =
+ devm_kasprintf(dev, GFP_KERNEL,
+ "nvidia_mcf_pcie_pmu_%u",
+ coresight_pmu->apmt_node->proc_affinity);
+ impl->filter_mask = NV_MCF_PCIE_FILTER_ID_MASK;
+ impl->event_attr = mcf_pmu_event_attrs;
+ impl->format_attr = mcf_pcie_pmu_format_attrs;
+ break;
+ case 0x104:
+ impl->name =
+ devm_kasprintf(dev, GFP_KERNEL,
+ "nvidia_mcf_gpuvir_pmu_%u",
+ coresight_pmu->apmt_node->proc_affinity);
+ impl->filter_mask = NV_MCF_GPU_FILTER_ID_MASK;
+ impl->event_attr = mcf_pmu_event_attrs;
+ impl->format_attr = mcf_gpu_pmu_format_attrs;
+ break;
+ case 0x105:
+ impl->name =
+ devm_kasprintf(dev, GFP_KERNEL,
+ "nvidia_mcf_gpu_pmu_%u",
+ coresight_pmu->apmt_node->proc_affinity);
+ impl->filter_mask = NV_MCF_GPU_FILTER_ID_MASK;
+ impl->event_attr = mcf_pmu_event_attrs;
+ impl->format_attr = mcf_gpu_pmu_format_attrs;
+ break;
+ case 0x106:
+ impl->name =
+ devm_kasprintf(dev, GFP_KERNEL,
+ "nvidia_mcf_nvlink_pmu_%u",
+ coresight_pmu->apmt_node->proc_affinity);
+ impl->filter_mask = NV_MCF_NVLINK_FILTER_ID_MASK;
+ impl->event_attr = mcf_pmu_event_attrs;
+ impl->format_attr = mcf_nvlink_pmu_format_attrs;
+ break;
+ case 0x2CF:
+ impl->name =
+ devm_kasprintf(dev, GFP_KERNEL, "nvidia_scf_pmu_%u",
+ coresight_pmu->apmt_node->proc_affinity);
+ impl->filter_mask = 0x0;
+ impl->event_attr = scf_pmu_event_attrs;
+ impl->format_attr = scf_pmu_format_attrs;
+ break;
+ default:
+ impl->name =
+ devm_kasprintf(dev, GFP_KERNEL, "nvidia_uncore_pmu_%u",
+ atomic_fetch_inc(&pmu_idx));
+ impl->filter_mask = CORESIGHT_FILTER_MASK;
+ impl->event_attr = coresight_pmu_get_event_attrs(coresight_pmu);
+ impl->format_attr =
+ coresight_pmu_get_format_attrs(coresight_pmu);
+ break;
+ }
+
+ impl->ops.get_event_attrs = nv_coresight_pmu_get_event_attrs;
+ impl->ops.get_format_attrs = nv_coresight_pmu_get_format_attrs;
+ impl->ops.get_identifier = coresight_pmu_get_identifier;
+ impl->ops.get_name = nv_coresight_pmu_get_name;
+ impl->ops.event_filter = nv_coresight_pmu_event_filter;
+ impl->ops.event_type = coresight_pmu_event_type;
+ impl->ops.event_attr_is_visible = coresight_pmu_event_attr_is_visible;
+ impl->ops.is_cc_event = coresight_pmu_is_cc_event;
+
+ coresight_pmu->impl.ops = &impl->ops;
+ return 0;
+}
+EXPORT_SYMBOL_GPL(nv_coresight_init_ops);
diff --git a/drivers/perf/coresight_pmu/arm_coresight_pmu_nvidia.h b/drivers/perf/coresight_pmu/arm_coresight_pmu_nvidia.h
new file mode 100644
index 000000000000..3c81c16c14f4
--- /dev/null
+++ b/drivers/perf/coresight_pmu/arm_coresight_pmu_nvidia.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES.
+ *
+ */
+
+/* Support for NVIDIA specific attributes. */
+
+#ifndef __ARM_CORESIGHT_PMU_NVIDIA_H__
+#define __ARM_CORESIGHT_PMU_NVIDIA_H__
+
+#include "arm_coresight_pmu.h"
+
+/* Allocate NVIDIA descriptor. */
+int nv_coresight_init_ops(struct coresight_pmu *coresight_pmu);
+
+#endif /* __ARM_CORESIGHT_PMU_NVIDIA_H__ */
--
2.17.1
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next prev parent reply other threads:[~2022-06-21 5:52 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-21 5:50 [RESEND PATCH v3 0/2] perf: ARM CoreSight PMU support Besar Wicaksono
2022-06-21 5:50 ` [RESEND PATCH v3 1/2] perf: coresight_pmu: Add support for ARM CoreSight PMU driver Besar Wicaksono
2022-06-27 10:36 ` Will Deacon
2022-07-07 0:25 ` Besar Wicaksono
2022-07-07 11:07 ` Suzuki K Poulose
2022-07-08 10:46 ` Besar Wicaksono
2022-07-12 16:36 ` Mathieu Poirier
2022-07-12 20:13 ` Robin Murphy
2022-07-13 16:26 ` Mathieu Poirier
2022-07-14 4:47 ` Besar Wicaksono
2022-07-21 3:36 ` Besar Wicaksono
2022-07-21 9:19 ` Suzuki K Poulose
2022-07-21 15:35 ` Mathieu Poirier
2022-08-01 22:27 ` Besar Wicaksono
2022-08-02 9:38 ` Suzuki K Poulose
2022-08-02 23:04 ` Besar Wicaksono
2022-06-21 5:50 ` Besar Wicaksono [this message]
2022-06-27 10:37 ` [RESEND PATCH v3 2/2] perf: coresight_pmu: Add support for NVIDIA SCF and MCF attribute Will Deacon
2022-07-07 0:40 ` Besar Wicaksono
2022-07-07 11:07 ` Suzuki K Poulose
2022-07-08 13:35 ` Besar Wicaksono
2022-07-07 16:37 ` [RESEND PATCH v3 0/2] perf: ARM CoreSight PMU support Mathieu Poirier
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