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From: Zide Chen <zide.chen@intel.com>
To: Peter Zijlstra <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Namhyung Kim <namhyung@kernel.org>,
	Ian Rogers <irogers@google.com>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Andi Kleen <ak@linux.intel.com>,
	Eranian Stephane <eranian@google.com>
Cc: linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org,
	Dapeng Mi <dapeng1.mi@linux.intel.com>,
	Zide Chen <zide.chen@intel.com>,
	Xudong Hao <xudong.hao@intel.com>,
	Falcon Thomas <thomas.falcon@intel.com>
Subject: [PATCH 0/7] Add Diamond Rapids uncore support
Date: Fri, 12 Dec 2025 13:00:00 -0800	[thread overview]
Message-ID: <20251212210007.13986-1-zide.chen@intel.com> (raw)

Similar to Intel Sapphire Rapids, Diamond Rapids relies on discovery
tables for uncore enumeration.  Key differences and additions include:

- DMR may have two Integrated I/O and Memory Hub (IMH) dies, which are
  separate from the compute tile (CBB) dies.  Each CBB die and each IMH
  die has its own dedicated discovery table.

- Unlike prior CPUs that retrieve the global discovery table portal
  exclusively through either PCI or MSR, DMR uses PCI for IMH PMON
  discovery and MSR for CBB PMON discovery

- DMR introduces several new PMON types, including SCA, HAMVF, D2D_ULA,
  UBR, PCIE4, CRS, CPC, ITC, OTC, CMS, and PCIE6.

- Unlike SPR, IIO free-running counters in DMR are MMIO-based.

Zide Chen (7):
  perf/x86/intel/uncore: Add dual PCI/MSR discovery support
  perf/x86/intel/uncore: Add IMH PMON support for Diamond Rapids
  perf/x86/intel/uncore: Add CBB PMON support for Diamond Rapids
  perf/x86/intel/uncore: Add freerunning event descriptor helper macro
  perf/x86/intel/uncore: Support IIO free-running counters on DMR
  perf/x86/intel/uncore: Update DMR uncore constraints preliminarily
  perf pmu: Relax uncore wildcard matching to allow numeric suffix

 arch/x86/events/intel/uncore.c           |  39 +-
 arch/x86/events/intel/uncore.h           |   3 +
 arch/x86/events/intel/uncore_discovery.c |  42 +-
 arch/x86/events/intel/uncore_discovery.h |   6 +-
 arch/x86/events/intel/uncore_snbep.c     | 558 ++++++++++++++++++++---
 tools/perf/util/pmu.c                    |  14 +-
 6 files changed, 548 insertions(+), 114 deletions(-)

-- 
2.52.0


             reply	other threads:[~2025-12-12 21:07 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-12-12 21:00 Zide Chen [this message]
2025-12-12 21:00 ` [PATCH 1/7] perf/x86/intel/uncore: Add dual PCI/MSR discovery support Zide Chen
2025-12-12 21:00 ` [PATCH 2/7] perf/x86/intel/uncore: Add IMH PMON support for Diamond Rapids Zide Chen
2025-12-12 21:00 ` [PATCH 3/7] perf/x86/intel/uncore: Add CBB " Zide Chen
2025-12-12 21:00 ` [PATCH 4/7] perf/x86/intel/uncore: Add freerunning event descriptor helper macro Zide Chen
2025-12-12 21:00 ` [PATCH 5/7] perf/x86/intel/uncore: Support IIO free-running counters on DMR Zide Chen
2025-12-12 21:00 ` [PATCH 6/7] perf/x86/intel/uncore: Update DMR uncore constraints preliminarily Zide Chen
2025-12-12 21:00 ` [PATCH 7/7] perf pmu: Relax uncore wildcard matching to allow numeric suffix Zide Chen

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