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26 Feb 2020 13:54:50 -0800 IronPort-SDR: cwWbOHXlgS187vh61TxRjM6guQ7ekDTpm98OcXyDB2OGhAdfCG+xrfniT9NPggwCnklbxc0dB+ +exZW2EhASXPMZntYxbsWCex681LyalY5ySfsrJfMH8QKGwx8ZKJjPCsJNzeC4GEuM3PCwqtGR 3lvXucSrKbzrSKMUsoSNOOVGt1tH0ohUKoTuSp56n5+fS77Zy6NEg2dlcNEdjBTYXJIuX0x/NN PAfilQhS/RXAuTURdERtFBjcHBPsZnc15GBqImlUTZ5K1hupUAB6RwniAwb3PI1p/XokGe03el ou8= WDCIronportException: Internal Received: from yoda.sdcorp.global.sandisk.com (HELO yoda.int.fusionio.com) ([10.196.158.80]) by uls-op-cesaip02.wdc.com with ESMTP; 26 Feb 2020 14:02:25 -0800 From: Atish Patra To: linux-kernel@vger.kernel.org Subject: [PATCH v10 09/12] RISC-V: Add SBI HSM extension definitions Date: Wed, 26 Feb 2020 14:02:10 -0800 Message-Id: <20200226220213.27423-10-atish.patra@wdc.com> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200226220213.27423-1-atish.patra@wdc.com> References: <20200226220213.27423-1-atish.patra@wdc.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200226_140230_472355_DD803BD8 X-CRM114-Status: UNSURE ( 8.42 ) X-CRM114-Notice: Please train this message. X-Spam-Score: -2.5 (--) X-Spam-Report: SpamAssassin version 3.4.3 on bombadil.infradead.org summary: Content analysis details: (-2.5 points) pts rule name description ---- ---------------------- -------------------------------------------------- -2.3 RCVD_IN_DNSWL_MED RBL: Sender listed at https://www.dnswl.org/, medium trust [68.232.141.245 listed in list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record -0.1 DKIM_VALID_EF Message has a valid DKIM or DK signature from envelope-from domain 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature 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: Kate Stewart , Madhavan Srinivasan , Zong Li , Heiko Carstens , Michael Kelley , Atish Patra , Gary Guo , linux-riscv@lists.infradead.org, Mike Rapoport , Kees Cook , Marc Zyngier , "Rafael J. Wysocki" , Daniel Jordan , Geert Uytterhoeven , Greentime Hu , Borislav Petkov , Mao Han , Albert Ou , Jason Cooper , Sudeep Holla , Alexios Zavras , Paul Walmsley , Thomas Gleixner , Nick Hu , Greg Kroah-Hartman , Anup Patel , Vincent Chen , Palmer Dabbelt , "Eric W. Biederman" , Anup Patel , Steven Price Sender: "linux-riscv" Errors-To: linux-riscv-bounces+patchwork-linux-riscv=patchwork.kernel.org@lists.infradead.org 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 Reviewed-by: Anup Patel --- 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 82ff88f06ddc..450430c15879 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_STARTED = 0, + SBI_HSM_HART_STATUS_STOPPED, + 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