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([2a01:e0a:999:a3a0:96:820c:ecf7:a817]) by smtp.gmail.com with ESMTPSA id fj7-20020a05600c0c8700b0040772138bb7sm9873393wmb.2.2023.10.17.06.15.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 17 Oct 2023 06:15:33 -0700 (PDT) From: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= To: linux-riscv@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org Cc: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= , Palmer Dabbelt , Paul Walmsley , Rob Herring , Krzysztof Kozlowski , Albert Ou , Jonathan Corbet , Andrew Jones , Evan Green , Conor Dooley , Samuel Ortiz Subject: [PATCH v2 08/19] riscv: add ISA extension parsing for Zfh/Zfhmin Date: Tue, 17 Oct 2023 15:14:45 +0200 Message-ID: <20231017131456.2053396-9-cleger@rivosinc.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231017131456.2053396-1-cleger@rivosinc.com> References: <20231017131456.2053396-1-cleger@rivosinc.com> MIME-Version: 1.0 X-Spam-Status: No, score=-0.8 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on howler.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (howler.vger.email [0.0.0.0]); Tue, 17 Oct 2023 06:17:04 -0700 (PDT) X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1780008753412913203 X-GMAIL-MSGID: 1780008753412913203 Add parsing for Zvfh/Zfhmin ISA extensions[1]. Link: https://drive.google.com/file/d/1z3tQQLm5ALsAD77PM0l0CHnapxWCeVzP/view [1] Signed-off-by: Clément Léger Reviewed-by: Evan Green --- arch/riscv/include/asm/hwcap.h | 4 +++- arch/riscv/kernel/cpufeature.c | 2 ++ 2 files changed, 5 insertions(+), 1 deletion(-) diff --git a/arch/riscv/include/asm/hwcap.h b/arch/riscv/include/asm/hwcap.h index a2fac23b0cc0..bead05cb0df2 100644 --- a/arch/riscv/include/asm/hwcap.h +++ b/arch/riscv/include/asm/hwcap.h @@ -79,8 +79,10 @@ #define RISCV_ISA_EXT_ZVKSED 61 #define RISCV_ISA_EXT_ZVKSH 62 #define RISCV_ISA_EXT_ZVKT 63 +#define RISCV_ISA_EXT_ZFH 64 +#define RISCV_ISA_EXT_ZFHMIN 65 -#define RISCV_ISA_EXT_MAX 64 +#define RISCV_ISA_EXT_MAX 128 #ifdef CONFIG_RISCV_M_MODE #define RISCV_ISA_EXT_SxAIA RISCV_ISA_EXT_SMAIA diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c index 8cf0b8b442ae..68914b5e2df9 100644 --- a/arch/riscv/kernel/cpufeature.c +++ b/arch/riscv/kernel/cpufeature.c @@ -244,6 +244,8 @@ const struct riscv_isa_ext_data riscv_isa_ext[] = { __RISCV_ISA_EXT_DATA(zifencei, RISCV_ISA_EXT_ZIFENCEI), __RISCV_ISA_EXT_DATA(zihintpause, RISCV_ISA_EXT_ZIHINTPAUSE), __RISCV_ISA_EXT_DATA(zihpm, RISCV_ISA_EXT_ZIHPM), + __RISCV_ISA_EXT_DATA(zfh, RISCV_ISA_EXT_ZFH), + __RISCV_ISA_EXT_DATA(zfhmin, RISCV_ISA_EXT_ZFHMIN), __RISCV_ISA_EXT_DATA(zba, RISCV_ISA_EXT_ZBA), __RISCV_ISA_EXT_DATA(zbb, RISCV_ISA_EXT_ZBB), __RISCV_ISA_EXT_DATA(zbc, RISCV_ISA_EXT_ZBC),