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Sun, 19 Oct 2025 21:21:18 -0700 (PDT) Received: from J9GPGXL7NT.bytedance.net ([61.213.176.55]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-29246ec14e9sm68762035ad.9.2025.10.19.21.21.10 (version=TLS1_3 cipher=TLS_CHACHA20_POLY1305_SHA256 bits=256/256); Sun, 19 Oct 2025 21:21:18 -0700 (PDT) From: Xu Lu To: corbet@lwn.net, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, alex@ghiti.fr, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, will@kernel.org, peterz@infradead.org, boqun.feng@gmail.com, mark.rutland@arm.com, anup@brainfault.org, atish.patra@linux.dev, pbonzini@redhat.com, shuah@kernel.org, parri.andrea@gmail.com, ajones@ventanamicro.com, brs@rivosinc.com, guoren@kernel.org Cc: linux-doc@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-kselftest@vger.kernel.org, apw@canonical.com, joe@perches.com, lukas.bulwahn@gmail.com, Xu Lu Subject: [PATCH v4 01/10] riscv: Add ISA extension parsing for Zalasr Date: Mon, 20 Oct 2025 12:20:47 +0800 Message-ID: <20251020042056.30283-2-luxu.kernel@bytedance.com> X-Mailer: git-send-email 2.50.1 In-Reply-To: <20251020042056.30283-1-luxu.kernel@bytedance.com> References: <20251020042056.30283-1-luxu.kernel@bytedance.com> Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add parsing for Zalasr ISA extension. Signed-off-by: Xu Lu --- arch/riscv/include/asm/hwcap.h | 1 + arch/riscv/kernel/cpufeature.c | 1 + 2 files changed, 2 insertions(+) diff --git a/arch/riscv/include/asm/hwcap.h b/arch/riscv/include/asm/hwcap.h index affd63e11b0a3..ae3852c4f2ca2 100644 --- a/arch/riscv/include/asm/hwcap.h +++ b/arch/riscv/include/asm/hwcap.h @@ -106,6 +106,7 @@ #define RISCV_ISA_EXT_ZAAMO 97 #define RISCV_ISA_EXT_ZALRSC 98 #define RISCV_ISA_EXT_ZICBOP 99 +#define RISCV_ISA_EXT_ZALASR 100 #define RISCV_ISA_EXT_XLINUXENVCFG 127 diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c index 743d53415572e..bf9d3d92bf372 100644 --- a/arch/riscv/kernel/cpufeature.c +++ b/arch/riscv/kernel/cpufeature.c @@ -472,6 +472,7 @@ const struct riscv_isa_ext_data riscv_isa_ext[] = { __RISCV_ISA_EXT_DATA(zaamo, RISCV_ISA_EXT_ZAAMO), __RISCV_ISA_EXT_DATA(zabha, RISCV_ISA_EXT_ZABHA), __RISCV_ISA_EXT_DATA(zacas, RISCV_ISA_EXT_ZACAS), + __RISCV_ISA_EXT_DATA(zalasr, RISCV_ISA_EXT_ZALASR), __RISCV_ISA_EXT_DATA(zalrsc, RISCV_ISA_EXT_ZALRSC), __RISCV_ISA_EXT_DATA(zawrs, RISCV_ISA_EXT_ZAWRS), __RISCV_ISA_EXT_DATA(zfa, RISCV_ISA_EXT_ZFA), -- 2.20.1