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From: Alan Kao <alankao@andestech.com>
To: Palmer Dabbelt <palmer@sifive.com>, Albert Ou <albert@sifive.com>,
	"Peter Zijlstra" <peterz@infradead.org>,
	Ingo Molnar <mingo@redhat.com>,
	"Arnaldo Carvalho de Melo" <acme@kernel.org>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Jiri Olsa <jolsa@redhat.com>,
	"Namhyung Kim" <namhyung@kernel.org>,
	Alex Solomatnikov <sols@sifive.com>,
	Atish Patra <atish.patra@wdc.com>,
	Jonathan Corbet <corbet@lwn.net>,
	<linux-riscv@lists.infradead.org>, <linux-doc@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>
Cc: Alan Kao <alankao@andestech.com>,
	Greentime Hu <greentime@andestech.com>,
	Nick Hu <nickhu@andestech.com>
Subject: [PATCH v5 0/2] perf: riscv: Preliminary Perf Event Support on RISC-V
Date: Fri, 20 Apr 2018 07:27:48 +0800	[thread overview]
Message-ID: <1524180470-8622-1-git-send-email-alankao@andestech.com> (raw)

This implements the baseline PMU for RISC-V platforms.

To ease future PMU portings, a guide is also written, containing
perf concepts, arch porting practices and some hints.

Changes in v5:
 - Fix patch errors from checkpatch.pl.

Changes in v4:
 - Fix several compilation errors.  Sorry for that.
 - Raise a warning in the write_counter body.

Changes in v3:
 - Fix typos in the document.
 - Change the initialization routine from statically assigning PMU to
   device-tree-based methods, and set default to the PMU proposed in
   this patch.

Changes in v2:
 - Fix the bug reported by Alex, which was caused by not sufficient
   initialization.  Check https://lkml.org/lkml/2018/3/31/251 for the
   discussion.

Alan Kao (2):
  perf: riscv: preliminary RISC-V support
  perf: riscv: Add Document for Future Porting Guide

 Documentation/riscv/pmu.txt         | 249 ++++++++++++++
 arch/riscv/Kconfig                  |  13 +
 arch/riscv/include/asm/perf_event.h |  79 ++++-
 arch/riscv/kernel/Makefile          |   1 +
 arch/riscv/kernel/perf_event.c      | 485 ++++++++++++++++++++++++++++
 5 files changed, 823 insertions(+), 4 deletions(-)
 create mode 100644 Documentation/riscv/pmu.txt
 create mode 100644 arch/riscv/kernel/perf_event.c

-- 
2.17.0

             reply	other threads:[~2018-04-19 23:28 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-19 23:27 Alan Kao [this message]
2018-04-19 23:27 ` [PATCH v5 1/2] perf: riscv: preliminary RISC-V support Alan Kao
2018-04-19 23:27 ` [PATCH v5 2/2] perf: riscv: Add Document for Future Porting Guide Alan Kao
2018-04-24 18:07 ` [PATCH v5 0/2] perf: riscv: Preliminary Perf Event Support on RISC-V Atish Patra
2018-04-24 19:27   ` Atish Patra
2018-04-24 19:44     ` Palmer Dabbelt
2018-04-24 22:16       ` Atish Patra
2018-04-25  0:29         ` Palmer Dabbelt
2018-04-25  1:15           ` Atish Patra
2018-04-25  3:19             ` Alan Kao
2018-04-25  8:09               ` Atish Patra
2018-04-25 16:39               ` Palmer Dabbelt
2018-06-06  3:16                 ` Alan Kao
2018-04-25 16:16             ` Palmer Dabbelt

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