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Wed, 15 Jan 2020 12:34:40 -0800 (PST) Date: Wed, 15 Jan 2020 12:34:40 -0800 (PST) X-Google-Original-Date: Wed, 15 Jan 2020 12:34:29 PST (-0800) Subject: Re: [PATCH v6 3/5] RISC-V: Add SBI v0.2 extension definitions CC: linux-kernel@vger.kernel.org, Atish Patra , aou@eecs.berkeley.edu, anup@brainfault.org, linux-riscv@lists.infradead.org, rppt@linux.ibm.com, Paul Walmsley , tglx@linutronix.de, atishp@atishpatra.org From: Palmer Dabbelt To: Atish Patra In-Reply-To: <20191218213918.16676-4-atish.patra@wdc.com> References: <20191218213918.16676-4-atish.patra@wdc.com> <20191218213918.16676-1-atish.patra@wdc.com> Message-ID: Mime-Version: 1.0 (MHng) Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 18 Dec 2019 13:39:16 PST (-0800), Atish Patra wrote: > Few v0.1 SBI calls are being replaced by new SBI calls that follows > v0.2 calling convention. > > This patch just defines these new extensions. > > Signed-off-by: Atish Patra > --- > arch/riscv/include/asm/sbi.h | 21 +++++++++++++++++++++ > 1 file changed, 21 insertions(+) > > diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h > index 1aeb4bb7baa8..9612133213ba 100644 > --- a/arch/riscv/include/asm/sbi.h > +++ b/arch/riscv/include/asm/sbi.h > @@ -21,6 +21,9 @@ enum sbi_ext_id { > SBI_EXT_0_1_REMOTE_SFENCE_VMA_ASID = 0x7, > SBI_EXT_0_1_SHUTDOWN = 0x8, > SBI_EXT_BASE = 0x10, > + SBI_EXT_TIME = 0x54494D45, > + SBI_EXT_IPI = 0x735049, > + SBI_EXT_RFENCE = 0x52464E43, > }; > > enum sbi_ext_base_fid { > @@ -33,6 +36,24 @@ enum sbi_ext_base_fid { > SBI_EXT_BASE_GET_MIMPID, > }; > > +enum sbi_ext_time_fid { > + SBI_EXT_TIME_SET_TIMER = 0, > +}; > + > +enum sbi_ext_ipi_fid { > + SBI_EXT_IPI_SEND_IPI = 0, > +}; > + > +enum sbi_ext_rfence_fid { > + SBI_EXT_RFENCE_REMOTE_FENCE_I = 0, > + SBI_EXT_RFENCE_REMOTE_SFENCE_VMA, > + SBI_EXT_RFENCE_REMOTE_SFENCE_VMA_ASID, > + SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA, > + SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA_VMID, > + SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA, > + SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA_ASID, > +}; > + > #define SBI_SPEC_VERSION_DEFAULT 0x1 > #define SBI_SPEC_VERSION_MAJOR_SHIFT 24 > #define SBI_SPEC_VERSION_MAJOR_MASK 0x7f With or without SBI_EXT_RFENCE_*, depending on what we do with the spec: Reviewed-by: Palmer Dabbelt