From: Atish Patra <atishp@rivosinc.com> To: linux-kernel@vger.kernel.org Cc: Atish Patra <atishp@rivosinc.com>, Ajay Kaher <ajay.kaher@broadcom.com>, Albert Ou <aou@eecs.berkeley.edu>, Alexandre Ghiti <alexghiti@rivosinc.com>, Alexey Makhalov <alexey.amakhalov@broadcom.com>, Andrew Jones <ajones@ventanamicro.com>, Anup Patel <anup@brainfault.org>, Atish Patra <atishp@atishpatra.org>, Broadcom internal kernel review list <bcm-kernel-feedback-list@broadcom.com>, Conor Dooley <conor.dooley@microchip.com>, Juergen Gross <jgross@suse.com>, kvm-riscv@lists.infradead.org, kvm@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-riscv@lists.infradead.org, Mark Rutland <mark.rutland@arm.com>, Palmer Dabbelt <palmer@dabbelt.com>, Paolo Bonzini <pbonzini@redhat.com>, Paul Walmsley <paul.walmsley@sifive.com>, Shuah Khan <shuah@kernel.org>, virtualization@lists.linux.dev, Will Deacon <will@kernel.org>, x86@kernel.org Subject: [PATCH v6 07/24] RISC-V: Use the minor version mask while computing sbi version Date: Wed, 10 Apr 2024 17:07:35 -0700 [thread overview] Message-ID: <20240411000752.955910-8-atishp@rivosinc.com> (raw) In-Reply-To: <20240411000752.955910-1-atishp@rivosinc.com> As per the SBI specification, minor version is encoded in the lower 24 bits only. Make sure that the SBI version is computed with the appropriate mask. Currently, there is no minor version in use. Thus, it doesn't change anything functionality but it is good to be compliant with the specification. Signed-off-by: Atish Patra <atishp@rivosinc.com> --- arch/riscv/include/asm/sbi.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h index f31650b10899..935b082d6a6c 100644 --- a/arch/riscv/include/asm/sbi.h +++ b/arch/riscv/include/asm/sbi.h @@ -367,8 +367,8 @@ static inline unsigned long sbi_minor_version(void) static inline unsigned long sbi_mk_version(unsigned long major, unsigned long minor) { - return ((major & SBI_SPEC_VERSION_MAJOR_MASK) << - SBI_SPEC_VERSION_MAJOR_SHIFT) | minor; + return ((major & SBI_SPEC_VERSION_MAJOR_MASK) << SBI_SPEC_VERSION_MAJOR_SHIFT + | (minor & SBI_SPEC_VERSION_MINOR_MASK)); } int sbi_err_map_linux_errno(int err); -- 2.34.1
WARNING: multiple messages have this Message-ID (diff)
From: Atish Patra <atishp@rivosinc.com> To: linux-kernel@vger.kernel.org Cc: Atish Patra <atishp@rivosinc.com>, Ajay Kaher <ajay.kaher@broadcom.com>, Albert Ou <aou@eecs.berkeley.edu>, Alexandre Ghiti <alexghiti@rivosinc.com>, Alexey Makhalov <alexey.amakhalov@broadcom.com>, Andrew Jones <ajones@ventanamicro.com>, Anup Patel <anup@brainfault.org>, Atish Patra <atishp@atishpatra.org>, Broadcom internal kernel review list <bcm-kernel-feedback-list@broadcom.com>, Conor Dooley <conor.dooley@microchip.com>, Juergen Gross <jgross@suse.com>, kvm-riscv@lists.infradead.org, kvm@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-riscv@lists.infradead.org, Mark Rutland <mark.rutland@arm.com>, Palmer Dabbelt <palmer@dabbelt.com>, Paolo Bonzini <pbonzini@redhat.com>, Paul Walmsley <paul.walmsley@sifive.com>, Shuah Khan <shuah@kernel.org>, virtualization@lists.linux.dev, Will Deacon <will@kernel.org>, x86@kernel.org Subject: [PATCH v6 07/24] RISC-V: Use the minor version mask while computing sbi version Date: Wed, 10 Apr 2024 17:07:35 -0700 [thread overview] Message-ID: <20240411000752.955910-8-atishp@rivosinc.com> (raw) In-Reply-To: <20240411000752.955910-1-atishp@rivosinc.com> As per the SBI specification, minor version is encoded in the lower 24 bits only. Make sure that the SBI version is computed with the appropriate mask. Currently, there is no minor version in use. Thus, it doesn't change anything functionality but it is good to be compliant with the specification. Signed-off-by: Atish Patra <atishp@rivosinc.com> --- arch/riscv/include/asm/sbi.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h index f31650b10899..935b082d6a6c 100644 --- a/arch/riscv/include/asm/sbi.h +++ b/arch/riscv/include/asm/sbi.h @@ -367,8 +367,8 @@ static inline unsigned long sbi_minor_version(void) static inline unsigned long sbi_mk_version(unsigned long major, unsigned long minor) { - return ((major & SBI_SPEC_VERSION_MAJOR_MASK) << - SBI_SPEC_VERSION_MAJOR_SHIFT) | minor; + return ((major & SBI_SPEC_VERSION_MAJOR_MASK) << SBI_SPEC_VERSION_MAJOR_SHIFT + | (minor & SBI_SPEC_VERSION_MINOR_MASK)); } int sbi_err_map_linux_errno(int err); -- 2.34.1 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv
next prev parent reply other threads:[~2024-04-11 0:08 UTC|newest] Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top 2024-04-11 0:07 [PATCH v6 00/24] RISC-V SBI v2.0 PMU improvements and Perf sampling in KVM guest Atish Patra 2024-04-11 0:07 ` Atish Patra 2024-04-11 0:07 ` [PATCH v6 01/24] RISC-V: Fix the typo in Scountovf CSR name Atish Patra 2024-04-11 0:07 ` Atish Patra 2024-04-15 13:01 ` Andrew Jones 2024-04-15 13:01 ` Andrew Jones 2024-04-11 0:07 ` [PATCH v6 02/24] RISC-V: Add FIRMWARE_READ_HI definition Atish Patra 2024-04-11 0:07 ` Atish Patra 2024-04-11 0:07 ` [PATCH v6 03/24] drivers/perf: riscv: Read upper bits of a firmware counter Atish Patra 2024-04-11 0:07 ` Atish Patra 2024-04-11 0:07 ` [PATCH v6 04/24] drivers/perf: riscv: Use BIT macro for shifting operations Atish Patra 2024-04-11 0:07 ` Atish Patra 2024-04-11 0:07 ` [PATCH v6 05/24] RISC-V: Add SBI PMU snapshot definitions Atish Patra 2024-04-11 0:07 ` Atish Patra 2024-04-11 0:07 ` [PATCH v6 06/24] RISC-V: KVM: Rename the SBI_STA_SHMEM_DISABLE to a generic name Atish Patra 2024-04-11 0:07 ` Atish Patra 2024-04-11 0:07 ` Atish Patra [this message] 2024-04-11 0:07 ` [PATCH v6 07/24] RISC-V: Use the minor version mask while computing sbi version Atish Patra 2024-04-15 13:06 ` Andrew Jones 2024-04-15 13:06 ` Andrew Jones 2024-04-16 8:31 ` Atish Patra 2024-04-16 8:31 ` Atish Patra 2024-04-16 8:49 ` Andrew Jones 2024-04-16 8:49 ` Andrew Jones 2024-04-11 0:07 ` [PATCH v6 08/24] drivers/perf: riscv: Implement SBI PMU snapshot function Atish Patra 2024-04-11 0:07 ` Atish Patra 2024-04-15 13:15 ` Andrew Jones 2024-04-15 13:15 ` Andrew Jones 2024-04-16 8:33 ` Atish Patra 2024-04-16 8:33 ` Atish Patra 2024-04-11 0:07 ` [PATCH v6 09/24] drivers/perf: riscv: Fix counter mask iteration for RV32 Atish Patra 2024-04-11 0:07 ` Atish Patra 2024-04-11 0:07 ` [PATCH v6 10/24] RISC-V: KVM: Fix the initial sample period value Atish Patra 2024-04-11 0:07 ` Atish Patra 2024-04-11 0:07 ` [PATCH v6 11/24] RISC-V: KVM: No need to update the counter value during reset Atish Patra 2024-04-11 0:07 ` Atish Patra 2024-04-11 0:07 ` [PATCH v6 12/24] RISC-V: KVM: No need to exit to the user space if perf event failed Atish Patra 2024-04-11 0:07 ` Atish Patra 2024-04-11 0:07 ` [PATCH v6 13/24] RISC-V: KVM: Implement SBI PMU Snapshot feature Atish Patra 2024-04-11 0:07 ` Atish Patra 2024-04-15 13:19 ` Andrew Jones 2024-04-15 13:19 ` Andrew Jones 2024-04-11 0:07 ` [PATCH v6 14/24] RISC-V: KVM: Add perf sampling support for guests Atish Patra 2024-04-11 0:07 ` Atish Patra 2024-04-15 13:23 ` Andrew Jones 2024-04-15 13:23 ` Andrew Jones 2024-04-11 0:07 ` [PATCH v6 15/24] RISC-V: KVM: Support 64 bit firmware counters on RV32 Atish Patra 2024-04-11 0:07 ` Atish Patra 2024-04-11 0:07 ` [PATCH v6 16/24] RISC-V: KVM: Improve firmware counter read function Atish Patra 2024-04-11 0:07 ` Atish Patra 2024-04-11 0:07 ` [PATCH v6 17/24] KVM: riscv: selftests: Move sbi definitions to its own header file Atish Patra 2024-04-11 0:07 ` Atish Patra 2024-04-11 0:07 ` [PATCH v6 18/24] KVM: riscv: selftests: Add helper functions for extension checks Atish Patra 2024-04-11 0:07 ` Atish Patra 2024-04-11 0:07 ` [PATCH v6 19/24] KVM: riscv: selftests: Add Sscofpmf to get-reg-list test Atish Patra 2024-04-11 0:07 ` Atish Patra 2024-04-11 0:07 ` [PATCH v6 20/24] KVM: riscv: selftests: Add SBI PMU extension definitions Atish Patra 2024-04-11 0:07 ` Atish Patra 2024-04-11 0:07 ` [PATCH v6 21/24] KVM: riscv: selftests: Add SBI PMU selftest Atish Patra 2024-04-11 0:07 ` Atish Patra 2024-04-15 13:31 ` Andrew Jones 2024-04-15 13:31 ` Andrew Jones 2024-04-11 0:07 ` [PATCH v6 22/24] KVM: riscv: selftests: Add a test for PMU snapshot functionality Atish Patra 2024-04-11 0:07 ` Atish Patra 2024-04-15 13:32 ` Andrew Jones 2024-04-15 13:32 ` Andrew Jones 2024-04-11 0:07 ` [PATCH v6 23/24] KVM: riscv: selftests: Add a test for counter overflow Atish Patra 2024-04-11 0:07 ` Atish Patra 2024-04-15 13:36 ` Andrew Jones 2024-04-15 13:36 ` Andrew Jones 2024-04-11 0:07 ` [PATCH v6 24/24] KVM: riscv: selftests: Add commandline option for SBI PMU test Atish Patra 2024-04-11 0:07 ` Atish Patra 2024-04-15 13:43 ` Andrew Jones 2024-04-15 13:43 ` Andrew Jones 2024-04-16 8:49 ` Atish Patra 2024-04-16 8:49 ` Atish Patra
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