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charset="UTF-8" X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200220_220357_709129_64BF11D0 X-CRM114-Status: GOOD ( 12.04 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Albert Ou , Jason Cooper , Nick Hu , Greg Kroah-Hartman , Daniel Lezcano , Heiko Carstens , "linux-kernel@vger.kernel.org List" , Mike Rapoport , "Rafael J. Wysocki" , Vincent Chen , Geert Uytterhoeven , "Eric W. Biederman" , Paul Walmsley , Marc Zyngier , Palmer Dabbelt , linux-riscv , Borislav Petkov , Thomas Gleixner , Mao Han , Kees Cook Sender: "linux-riscv" Errors-To: linux-riscv-bounces+infradead-linux-riscv=archiver.kernel.org@lists.infradead.org On Fri, Feb 21, 2020 at 6:14 AM Atish Patra wrote: > > SBI specification defines HSM extension that allows to start/stop a hart > by a supervisor anytime. The specification is available at > > https://github.com/riscv/riscv-sbi-doc/blob/master/riscv-sbi.adoc > > Add those definitions here. > > Signed-off-by: Atish Patra > --- > arch/riscv/include/asm/sbi.h | 14 ++++++++++++++ > 1 file changed, 14 insertions(+) > > diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h > index abbf0a7d3b6e..0981a0c97eda 100644 > --- a/arch/riscv/include/asm/sbi.h > +++ b/arch/riscv/include/asm/sbi.h > @@ -26,6 +26,7 @@ enum sbi_ext_id { > SBI_EXT_TIME = 0x54494D45, > SBI_EXT_IPI = 0x735049, > SBI_EXT_RFENCE = 0x52464E43, > + SBI_EXT_HSM = 0x48534D, > }; > > enum sbi_ext_base_fid { > @@ -56,6 +57,19 @@ enum sbi_ext_rfence_fid { > SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA_ASID, > }; > > +enum sbi_ext_hsm_fid { > + SBI_EXT_HSM_HART_START = 0, > + SBI_EXT_HSM_HART_STOP, > + SBI_EXT_HSM_HART_STATUS, > +}; > + > +enum sbi_hsm_hart_status { > + SBI_HSM_HART_STATUS_AVAILABLE = 0, > + SBI_HSM_HART_STATUS_NOT_AVAILABLE, Rename "_AVAILABLE" to "_STARTED" and "_NOT_AVAILABLE" to "STOPPED" to match SBI v0.2-rc1 spec. > + SBI_HSM_HART_STATUS_START_PENDING, > + SBI_HSM_HART_STATUS_STOP_PENDING, > +}; > + > #define SBI_SPEC_VERSION_DEFAULT 0x1 > #define SBI_SPEC_VERSION_MAJOR_SHIFT 24 > #define SBI_SPEC_VERSION_MAJOR_MASK 0x7f > -- > 2.25.0 > Otherwise, looks good to me. Reviewed-by: Anup Patel Regards, Anup