From: Charlie Jenkins <charlie@rivosinc.com>
To: Conor Dooley <conor@kernel.org>, Rob Herring <robh@kernel.org>,
Krzysztof Kozlowski <krzk+dt@kernel.org>,
Paul Walmsley <paul.walmsley@sifive.com>,
Palmer Dabbelt <palmer@dabbelt.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Jisheng Zhang <jszhang@kernel.org>, Chen-Yu Tsai <wens@csie.org>,
Jernej Skrabec <jernej.skrabec@gmail.com>,
Samuel Holland <samuel@sholland.org>,
Jonathan Corbet <corbet@lwn.net>, Shuah Khan <shuah@kernel.org>,
Guo Ren <guoren@kernel.org>, Evan Green <evan@rivosinc.com>,
Andy Chiu <andy.chiu@sifive.com>,
Jessica Clarke <jrtc27@jrtc27.com>
Cc: linux-riscv@lists.infradead.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-sunxi@lists.linux.dev,
linux-doc@vger.kernel.org, linux-kselftest@vger.kernel.org,
Charlie Jenkins <charlie@rivosinc.com>,
Heiko Stuebner <heiko@sntech.de>,
Conor Dooley <conor.dooley@microchip.com>,
Heiko Stuebner <heiko@sntech.de>
Subject: [PATCH v3 06/13] RISC-V: define the elements of the VCSR vector CSR
Date: Wed, 19 Jun 2024 16:57:19 -0700 [thread overview]
Message-ID: <20240619-xtheadvector-v3-6-bff39eb9668e@rivosinc.com> (raw)
In-Reply-To: <20240619-xtheadvector-v3-0-bff39eb9668e@rivosinc.com>
From: Heiko Stuebner <heiko@sntech.de>
The VCSR CSR contains two elements VXRM[2:1] and VXSAT[0].
Define constants for those to access the elements in a readable way.
Acked-by: Guo Ren <guoren@kernel.org>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Signed-off-by: Heiko Stuebner <heiko.stuebner@vrull.eu>
Signed-off-by: Charlie Jenkins <charlie@rivosinc.com>
---
arch/riscv/include/asm/csr.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/arch/riscv/include/asm/csr.h b/arch/riscv/include/asm/csr.h
index 25966995da04..18e178d83401 100644
--- a/arch/riscv/include/asm/csr.h
+++ b/arch/riscv/include/asm/csr.h
@@ -216,6 +216,11 @@
#define SMSTATEEN0_SSTATEEN0_SHIFT 63
#define SMSTATEEN0_SSTATEEN0 (_ULL(1) << SMSTATEEN0_SSTATEEN0_SHIFT)
+/* VCSR flags */
+#define VCSR_VXRM_MASK 3
+#define VCSR_VXRM_SHIFT 1
+#define VCSR_VXSAT_MASK 1
+
/* symbolic CSR names: */
#define CSR_CYCLE 0xc00
#define CSR_TIME 0xc01
--
2.34.1
next prev parent reply other threads:[~2024-06-19 23:57 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-19 23:57 [PATCH v3 00/13] riscv: Add support for xtheadvector Charlie Jenkins
2024-06-19 23:57 ` [PATCH v3 01/13] dt-bindings: riscv: Add xtheadvector ISA extension description Charlie Jenkins
2024-06-19 23:57 ` [PATCH v3 02/13] dt-bindings: cpus: add a thead vlen register length property Charlie Jenkins
2024-06-19 23:57 ` [PATCH v3 03/13] riscv: dts: allwinner: Add xtheadvector to the D1/D1s devicetree Charlie Jenkins
2024-06-20 10:06 ` Chen-Yu Tsai
2024-07-01 15:27 ` Samuel Holland
2024-07-01 16:07 ` Conor Dooley
2024-07-01 16:11 ` Samuel Holland
2024-07-01 16:31 ` Conor Dooley
2024-07-02 9:46 ` Yu-Chien Peter Lin
2024-07-02 15:39 ` Conor Dooley
2024-06-19 23:57 ` [PATCH v3 04/13] riscv: Add thead and xtheadvector as a vendor extension Charlie Jenkins
2024-06-19 23:57 ` [PATCH v3 05/13] riscv: vector: Use vlenb from DT for thead Charlie Jenkins
2024-07-01 14:06 ` Conor Dooley
2024-07-10 7:11 ` Guo Ren
2024-06-19 23:57 ` Charlie Jenkins [this message]
2024-06-19 23:57 ` [PATCH v3 07/13] riscv: csr: Add CSR encodings for VCSR_VXRM/VCSR_VXSAT Charlie Jenkins
2024-07-01 15:49 ` Samuel Holland
2024-07-02 5:46 ` Charlie Jenkins
2024-06-19 23:57 ` [PATCH v3 08/13] riscv: Add xtheadvector instruction definitions Charlie Jenkins
2024-06-19 23:57 ` [PATCH v3 09/13] riscv: vector: Support xtheadvector save/restore Charlie Jenkins
2024-07-01 16:20 ` Samuel Holland
2024-07-02 5:51 ` Charlie Jenkins
2024-06-19 23:57 ` [PATCH v3 10/13] riscv: hwprobe: Add thead vendor extension probing Charlie Jenkins
2024-06-19 23:57 ` [PATCH v3 11/13] riscv: hwprobe: Document thead vendor extensions and xtheadvector extension Charlie Jenkins
2024-06-19 23:57 ` [PATCH v3 12/13] selftests: riscv: Fix vector tests Charlie Jenkins
2024-06-19 23:57 ` [PATCH v3 13/13] selftests: riscv: Support xtheadvector in " Charlie Jenkins
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