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b=JR+kS/obBXAMgCZd1uDQUPQh5DJeKuGjsKn+z4S+ipXrHcfMR5NSCwT8nWCTLk7eJW wirGHusKpowEZSQbz9gEDWmwh3OTcmPAa+oWDSc7NlZsS3hxyQ9ngZtSAaft3fCAcsHp oQyzPanyOy+RzEPPM6AOs1uBg9SFxGAKHCpjj2cU8j+2kyt7PYTquJXj12ZgLFUHIukB 0aq+sfjktM4B71G9ebmqGHFhh2H3ZCbKuq+j6lYiBSKtzn6ZSJsImvhL7oTwDQshhBBx rWOlVGdpwO0W9M8PouXDCtqJX5r3DOB6jYOCZrlFcJG9r1KYyPTd6KsFcsyKTlofYhJs DzAQ== X-Gm-Message-State: AOJu0Yy55ER8TjrtmALaiiQRfX0b/wW0OpKpNTEAvXyeHJzxuge2WXPF sKvIC9NLZBWvOi6AXKznDEOUOzTxjPzQ+4PKj5k= X-Google-Smtp-Source: AGHT+IExImc6E3c9zSBMQbuSxneslVGQM9q+iFvI6Rf98bumizBB0Kd6tTdCn9FRWPD+AL48IGduhL6/wu8+l9k16Ak= X-Received: by 2002:a1f:a241:0:b0:49d:d3dd:fa40 with SMTP id l62-20020a1fa241000000b0049dd3ddfa40mr4081144vke.5.1698026669546; Sun, 22 Oct 2023 19:04:29 -0700 (PDT) MIME-Version: 1.0 References: <20231018154434.17367-1-rbradford@rivosinc.com> <20231018154434.17367-6-rbradford@rivosinc.com> In-Reply-To: <20231018154434.17367-6-rbradford@rivosinc.com> From: Alistair Francis Date: Mon, 23 Oct 2023 12:04:02 +1000 Message-ID: Subject: Re: [PATCH v4 5/6] docs/about/deprecated: Document RISC-V "pmu-num" deprecation To: Rob Bradford Cc: qemu-devel@nongnu.org, qemu-riscv@nongnu.org, atishp@rivosinc.com, palmer@dabbelt.com, alistair.francis@wdc.com, bin.meng@windriver.com, liweiwei@iscas.ac.cn, dbarboza@ventanamicro.com, zhiwei_liu@linux.alibaba.com, "reviewer:Incompatible changes" Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass client-ip=2607:f8b0:4864:20::a36; envelope-from=alistair23@gmail.com; helo=mail-vk1-xa36.google.com X-Spam_score_int: -17 X-Spam_score: -1.8 X-Spam_bar: - X-Spam_report: (-1.8 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org On Thu, Oct 19, 2023 at 1:47=E2=80=AFAM Rob Bradford wrote: > > This has been replaced by a "pmu-mask" property that provides much more > flexibility. > > Signed-off-by: Rob Bradford > Acked-by: LIU Zhiwei Reviewed-by: Alistair Francis Alistair > --- > docs/about/deprecated.rst | 12 ++++++++++++ > 1 file changed, 12 insertions(+) > > diff --git a/docs/about/deprecated.rst b/docs/about/deprecated.rst > index 2febd2d12f..857b5d4fc4 100644 > --- a/docs/about/deprecated.rst > +++ b/docs/about/deprecated.rst > @@ -405,6 +405,18 @@ Specifying the iSCSI password in plain text on the c= ommand line using the > used instead, to refer to a ``--object secret...`` instance that provide= s > a password via a file, or encrypted. > > +CPU device properties > +''''''''''''''''''''' > + > +``pmu-num=3Dn`` on RISC-V CPUs (since 8.2) > +^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ > + > +In order to support more flexible counter configurations this has been r= eplaced > +by a ``pmu-mask`` property. If set of counters is continuous then the ma= sk can > +be calculated with ``((2 ^ n) - 1) << 3``. The least significant three b= its > +must be left clear. > + > + > Backwards compatibility > ----------------------- > > -- > 2.41.0 > >