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Thu, 24 Apr 2025 03:05:09 -0700 (PDT) Received: from localhost ([37.72.3.43]) by smtp.gmail.com with UTF8SMTPSA id 5b1f17b1804b1-4409d29bf8fsm14517845e9.1.2025.04.24.03.05.08 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 24 Apr 2025 03:05:08 -0700 (PDT) Message-ID: <680a0cd4.050a0220.296475.3867@mx.google.com> X-Google-Original-Message-ID: <87ecxhg9in.fsf@> From: =?utf-8?Q?Miquel_Sabat=C3=A9_Sol=C3=A0?= To: Deepak Gupta Cc: Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Andrew Morton , "Liam R. Howlett" , Vlastimil Babka , Lorenzo Stoakes , Paul Walmsley , Palmer Dabbelt , Albert Ou , Conor Dooley , Rob Herring , Krzysztof Kozlowski , Arnd Bergmann , Christian Brauner , Peter Zijlstra , Oleg Nesterov , Eric Biederman , Kees Cook , Jonathan Corbet , Shuah Khan , Jann Horn , Conor Dooley , Miguel Ojeda , Alex Gaynor , Boqun Feng , Gary Guo , =?utf-8?Q?Bj=C3=B6?= =?utf-8?Q?rn?= Roy Baron , Benno Lossin , Andreas Hindborg , Alice Ryhl , Trevor Gross , linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-mm@kvack.org, linux-riscv@lists.infradead.org, devicetree@vger.kernel.org, linux-arch@vger.kernel.org, linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org, alistair.francis@wdc.com, richard.henderson@linaro.org, jim.shu@sifive.com, andybnac@gmail.com, kito.cheng@sifive.com, charlie@rivosinc.com, atishp@rivosinc.com, evan@rivosinc.com, cleger@rivosinc.com, alexghiti@rivosinc.com, samitolvanen@google.com, broonie@kernel.org, rick.p.edgecombe@intel.com, rust-for-linux@vger.kernel.org, Zong Li Subject: Re: [PATCH v13 20/28] riscv/hwprobe: zicfilp / zicfiss enumeration in hwprobe In-Reply-To: <20250424-v5_user_cfi_series-v13-20-971437de586a@rivosinc.com> (Deepak Gupta's message of "Thu, 24 Apr 2025 00:20:35 -0700") Organization: Linux Private Site References: <20250424-v5_user_cfi_series-v13-0-971437de586a@rivosinc.com> <20250424-v5_user_cfi_series-v13-20-971437de586a@rivosinc.com> User-Agent: mu4e 1.12.9; emacs 30.1 Date: Thu, 24 Apr 2025 12:05:04 +0200 Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; boundary="=-=-="; micalg=pgp-sha512; protocol="application/pgp-signature" --=-=-= Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable On dj., d=E2=80=99abr. 24 2025, Deepak Gupta wrote: Hello, > Adding enumeration of zicfilp and zicfiss extensions in hwprobe syscall. > > Reviewed-by: Zong Li > Signed-off-by: Deepak Gupta > --- > arch/riscv/include/uapi/asm/hwprobe.h | 2 ++ > arch/riscv/kernel/sys_hwprobe.c | 2 ++ > 2 files changed, 4 insertions(+) > > diff --git a/arch/riscv/include/uapi/asm/hwprobe.h b/arch/riscv/include/u= api/asm/hwprobe.h > index c3c1cc951cb9..c1b537b50158 100644 > --- a/arch/riscv/include/uapi/asm/hwprobe.h > +++ b/arch/riscv/include/uapi/asm/hwprobe.h > @@ -73,6 +73,8 @@ struct riscv_hwprobe { > #define RISCV_HWPROBE_EXT_ZCMOP (1ULL << 47) > #define RISCV_HWPROBE_EXT_ZAWRS (1ULL << 48) > #define RISCV_HWPROBE_EXT_SUPM (1ULL << 49) > +#define RISCV_HWPROBE_EXT_ZICFILP (1ULL << 50) > +#define RISCV_HWPROBE_EXT_ZICFISS (1ULL << 51) Notice that, as it stands in Linux v6.15-rc, this will conflict with the values for Zicntr and Zihpm. See 4458b8f68dc7 ("riscv: hwprobe: export Zicntr and Zihpm extensions"). I'd say that you should update these values. > #define RISCV_HWPROBE_KEY_CPUPERF_0 5 > #define RISCV_HWPROBE_MISALIGNED_UNKNOWN (0 << 0) > #define RISCV_HWPROBE_MISALIGNED_EMULATED (1 << 0) > diff --git a/arch/riscv/kernel/sys_hwprobe.c b/arch/riscv/kernel/sys_hwpr= obe.c > index bcd3b816306c..d802ff707913 100644 > --- a/arch/riscv/kernel/sys_hwprobe.c > +++ b/arch/riscv/kernel/sys_hwprobe.c > @@ -108,6 +108,8 @@ static void hwprobe_isa_ext0(struct riscv_hwprobe *pa= ir, > EXT_KEY(ZCB); > EXT_KEY(ZCMOP); > EXT_KEY(ZICBOZ); > + EXT_KEY(ZICFILP); > + EXT_KEY(ZICFISS); > EXT_KEY(ZICOND); > EXT_KEY(ZIHINTNTL); > EXT_KEY(ZIHINTPAUSE); Greetings, Miquel --=-=-= Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQJJBAEBCgAzFiEEG6U8esk9yirP39qXlr6Mb9idZWUFAmgKDNAVHG1pa2lzYWJh dGVAZ21haWwuY29tAAoJEJa+jG/YnWVlMe8P/3GWvWsJksgXvOwVEdZk24vFu0lQ heUgo5llXNYRxNaU0iBfZ3qVuWR1WIoDsFnd6EzvAM4/miQK/jOfgb4/xOXls+Ah qzj0dMvXuLWIRfEom5PhWxW9Tevfl90Pk/TkkzvmaA0t4D/eEvKOsFEFpLFFnP+t /fCiUbrVg7ahnA0Z9vBA7oLJt9NNks7FOSFH3ZmiJLI82sTMOnQKxGe+GHy0bUc+ 0pwUt3aeugR6ZciXnDq4Gfj5m8zBxHgCpGnSNk9eQTtrXXPHcrRBDHAIFESssje8 TaZzLO4+jKovhY6jicjetbtiLYyldXkOz01R49CcxwVlAD5fxgNYpcHu3jnjx+Hw wSHeMcyjabQHhBop019M9OAFIBQPIKS1B6y570G+M+t19H22083cwGIdLqIYAOfv 3Gml165o3Sl0NPVV/SnNaW/0mxlZq4Y9wXHbnNEJ1JMJlbNYJJeKPvvcPGD9xsgb iqT5gFNPh4w6OWM34Pb25D6Q1PNlKy8BX9DPgaRlKyRNNutuqJg5x7PK6LN7t4gR gjrvXyVDQ2rWt1JnR6lq87uVLvuwRC6YEZJIOZ59k4bWzhwvl23a93wACN0PJyKg yUcHgDHSscAYTxSkOSAWX6Kkh7pg9aiZ3hHYyeI4wKuot02nuZzZZ1/iigfX0X8x PAoq2NET1dRPiyaZ =JubY -----END PGP SIGNATURE----- --=-=-=--