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[31.30.173.67]) by smtp.gmail.com with ESMTPSA id u18-20020a05600c19d200b003a5a5069107sm2618214wmq.24.2022.08.31.10.25.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 31 Aug 2022 10:25:03 -0700 (PDT) From: Andrew Jones To: linux-riscv@lists.infradead.org, kvm-riscv@lists.infradead.org Cc: linux-kernel@vger.kernel.org, paul.walmsley@sifive.com, palmer@dabbelt.com, aou@eecs.berkeley.edu, anup@brainfault.org, mchitale@ventanamicro.com, heiko@sntech.de Subject: [PATCH v2 1/4] riscv: Add X register names to gpr-nums Date: Wed, 31 Aug 2022 19:24:57 +0200 Message-Id: <20220831172500.752195-2-ajones@ventanamicro.com> X-Mailer: git-send-email 2.37.2 In-Reply-To: <20220831172500.752195-1-ajones@ventanamicro.com> References: <20220831172500.752195-1-ajones@ventanamicro.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220831_102507_938636_83172548 X-CRM114-Status: UNSURE ( 9.35 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org When encoding instructions it's sometimes necessary to set a register field to a precise number. This is easiest to do using the x naming. Signed-off-by: Andrew Jones Reviewed-by: Anup Patel --- arch/riscv/include/asm/gpr-num.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/arch/riscv/include/asm/gpr-num.h b/arch/riscv/include/asm/gpr-num.h index dfee2829fc7c..efeb5edf8a3a 100644 --- a/arch/riscv/include/asm/gpr-num.h +++ b/arch/riscv/include/asm/gpr-num.h @@ -3,6 +3,11 @@ #define __ASM_GPR_NUM_H #ifdef __ASSEMBLY__ + + .irp num,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31 + .equ .L__gpr_num_x\num, \num + .endr + .equ .L__gpr_num_zero, 0 .equ .L__gpr_num_ra, 1 .equ .L__gpr_num_sp, 2 @@ -39,6 +44,9 @@ #else /* __ASSEMBLY__ */ #define __DEFINE_ASM_GPR_NUMS \ +" .irp num,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31\n" \ +" .equ .L__gpr_num_x\\num, \\num\n" \ +" .endr\n" \ " .equ .L__gpr_num_zero, 0\n" \ " .equ .L__gpr_num_ra, 1\n" \ " .equ .L__gpr_num_sp, 2\n" \