Message ID | 20240131155929.169961-2-alexghiti@rivosinc.com (mailing list archive) |
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State | New |
Headers | show
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[92.145.124.62]) by smtp.gmail.com with ESMTPSA id v8-20020a5d59c8000000b0033af2a91b47sm7494000wry.70.2024.01.31.08.00.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 31 Jan 2024 08:00:33 -0800 (PST) From: Alexandre Ghiti <alexghiti@rivosinc.com> To: Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will@kernel.org>, Thomas Bogendoerfer <tsbogend@alpha.franken.de>, Michael Ellerman <mpe@ellerman.id.au>, Nicholas Piggin <npiggin@gmail.com>, Christophe Leroy <christophe.leroy@csgroup.eu>, Paul Walmsley <paul.walmsley@sifive.com>, Palmer Dabbelt <palmer@dabbelt.com>, Albert Ou <aou@eecs.berkeley.edu>, Andrew Morton <akpm@linux-foundation.org>, Ved Shanbhogue <ved@rivosinc.com>, Matt Evans <mev@rivosinc.com>, Dylan Jhong <dylan@andestech.com>, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org, linuxppc-dev@lists.ozlabs.org, linux-riscv@lists.infradead.org, linux-mm@kvack.org Cc: Alexandre Ghiti <alexghiti@rivosinc.com> Subject: [PATCH RFC/RFT v2 1/4] riscv: Add ISA extension parsing for Svvptc Date: Wed, 31 Jan 2024 16:59:26 +0100 Message-Id: <20240131155929.169961-2-alexghiti@rivosinc.com> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20240131155929.169961-1-alexghiti@rivosinc.com> References: <20240131155929.169961-1-alexghiti@rivosinc.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Rspamd-Queue-Id: 3B7794000F X-Rspam-User: X-Rspamd-Server: rspam11 X-Stat-Signature: ttc4ub7k6nec6dpfac9gxosnzxcs8au4 X-HE-Tag: 1706716835-6298 X-HE-Meta: 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 yIuTfK5Z iGW4x9KeWsNvhlAjAViCoWFHdAiWICW77+UNxiPUW15dfpxd5dAokvKkGyHIlDdXgS7ECrCiZlbFMcZ2AraTeC3L9cG/cO0HHQo5ykQ/VBgG+//uopWRXZCaarY79JEyx/U5CAjdq+Axr/fbLa3UP3CCzVu+/5q0H/yXm7UVGqYc4LMwrNdzPHOPtakHZiNmKOwwEqo4Wt1OD/BEo94hquaY/12sdHw2J4aijsPOCy2gPHQdME9nVIUa9C0pkbymIZCVuTrYTEWfH37wUW8UrN+2/qh8TOM+Sd34kUVL08KYbLuqUfxLXoKlMbFyq1P43V+lSHDdsTF6uoZCe8UeB6+Qi3c/PgFJXoV+Rh4a6iq9AtwvjYTbg5vPXrwv5m4l7K7urK5b4q7FE5T9ug3503MdcvHNYGod4+4W5+Hndb7DumdblgMAqXfTuq6O+xZNKXHey X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: <linux-mm.kvack.org> List-Subscribe: <mailto:majordomo@kvack.org> List-Unsubscribe: <mailto:majordomo@kvack.org> |
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Svvptc extension to remove preventive sfence.vma
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diff --git a/arch/riscv/include/asm/hwcap.h b/arch/riscv/include/asm/hwcap.h index 5340f818746b..2e15192135fb 100644 --- a/arch/riscv/include/asm/hwcap.h +++ b/arch/riscv/include/asm/hwcap.h @@ -80,6 +80,7 @@ #define RISCV_ISA_EXT_ZFA 71 #define RISCV_ISA_EXT_ZTSO 72 #define RISCV_ISA_EXT_ZACAS 73 +#define RISCV_ISA_EXT_SVVPTC 74 #define RISCV_ISA_EXT_MAX 128 #define RISCV_ISA_EXT_INVALID U32_MAX diff --git a/arch/riscv/kernel/cpufeature.c b/arch/riscv/kernel/cpufeature.c index 89920f84d0a3..4a8f14bfa0f2 100644 --- a/arch/riscv/kernel/cpufeature.c +++ b/arch/riscv/kernel/cpufeature.c @@ -307,6 +307,7 @@ const struct riscv_isa_ext_data riscv_isa_ext[] = { __RISCV_ISA_EXT_DATA(svinval, RISCV_ISA_EXT_SVINVAL), __RISCV_ISA_EXT_DATA(svnapot, RISCV_ISA_EXT_SVNAPOT), __RISCV_ISA_EXT_DATA(svpbmt, RISCV_ISA_EXT_SVPBMT), + __RISCV_ISA_EXT_DATA(svvptc, RISCV_ISA_EXT_SVVPTC), }; const size_t riscv_isa_ext_count = ARRAY_SIZE(riscv_isa_ext);
Add support to parse the Svvptc string in the riscv,isa string. Signed-off-by: Alexandre Ghiti <alexghiti@rivosinc.com> --- arch/riscv/include/asm/hwcap.h | 1 + arch/riscv/kernel/cpufeature.c | 1 + 2 files changed, 2 insertions(+)