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([2a01:e0a:999:a3a0:2b3d:6c70:9dbf:5ede]) by smtp.gmail.com with ESMTPSA id x11-20020a5d650b000000b00318147fd2d3sm14926060wru.41.2023.09.26.08.03.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 26 Sep 2023 08:03:52 -0700 (PDT) From: =?UTF-8?q?Cl=C3=A9ment=20L=C3=A9ger?= To: Paul Walmsley , Palmer Dabbelt , Albert Ou Cc: =?UTF-8?q?Cl=C3=A9ment=20L=C3=A9ger?= , Atish Patra , Andrew Jones , Evan Green , =?UTF-8?q?Bj=C3=B6rn=20Topel?= , linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Ron Minnich , Daniel Maslowski Subject: [PATCH 1/7] riscv: remove unused functions in traps_misaligned.c Date: Tue, 26 Sep 2023 17:03:10 +0200 Message-Id: <20230926150316.1129648-2-cleger@rivosinc.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20230926150316.1129648-1-cleger@rivosinc.com> References: <20230926150316.1129648-1-cleger@rivosinc.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Replace macros by the only two function calls that are done from this file, store_u8() and load_u8(). Signed-off-by: Clément Léger --- arch/riscv/kernel/traps_misaligned.c | 46 +++++----------------------- 1 file changed, 7 insertions(+), 39 deletions(-) diff --git a/arch/riscv/kernel/traps_misaligned.c b/arch/riscv/kernel/traps_misaligned.c index 378f5b151443..e7bfb33089c1 100644 --- a/arch/riscv/kernel/traps_misaligned.c +++ b/arch/riscv/kernel/traps_misaligned.c @@ -151,51 +151,19 @@ #define PRECISION_S 0 #define PRECISION_D 1 -#define DECLARE_UNPRIVILEGED_LOAD_FUNCTION(type, insn) \ -static inline type load_##type(const type *addr) \ -{ \ - type val; \ - asm (#insn " %0, %1" \ - : "=&r" (val) : "m" (*addr)); \ - return val; \ -} +static inline u8 load_u8(const u8 *addr) +{ + u8 val; -#define DECLARE_UNPRIVILEGED_STORE_FUNCTION(type, insn) \ -static inline void store_##type(type *addr, type val) \ -{ \ - asm volatile (#insn " %0, %1\n" \ - : : "r" (val), "m" (*addr)); \ -} + asm volatile("lbu %0, %1" : "=&r" (val) : "m" (*addr)); -DECLARE_UNPRIVILEGED_LOAD_FUNCTION(u8, lbu) -DECLARE_UNPRIVILEGED_LOAD_FUNCTION(u16, lhu) -DECLARE_UNPRIVILEGED_LOAD_FUNCTION(s8, lb) -DECLARE_UNPRIVILEGED_LOAD_FUNCTION(s16, lh) -DECLARE_UNPRIVILEGED_LOAD_FUNCTION(s32, lw) -DECLARE_UNPRIVILEGED_STORE_FUNCTION(u8, sb) -DECLARE_UNPRIVILEGED_STORE_FUNCTION(u16, sh) -DECLARE_UNPRIVILEGED_STORE_FUNCTION(u32, sw) -#if defined(CONFIG_64BIT) -DECLARE_UNPRIVILEGED_LOAD_FUNCTION(u32, lwu) -DECLARE_UNPRIVILEGED_LOAD_FUNCTION(u64, ld) -DECLARE_UNPRIVILEGED_STORE_FUNCTION(u64, sd) -DECLARE_UNPRIVILEGED_LOAD_FUNCTION(ulong, ld) -#else -DECLARE_UNPRIVILEGED_LOAD_FUNCTION(u32, lw) -DECLARE_UNPRIVILEGED_LOAD_FUNCTION(ulong, lw) - -static inline u64 load_u64(const u64 *addr) -{ - return load_u32((u32 *)addr) - + ((u64)load_u32((u32 *)addr + 1) << 32); + return val; } -static inline void store_u64(u64 *addr, u64 val) +static inline void store_u8(u8 *addr, u8 val) { - store_u32((u32 *)addr, val); - store_u32((u32 *)addr + 1, val >> 32); + asm volatile ("sb %0, %1\n" : : "r" (val), "m" (*addr)); } -#endif static inline ulong get_insn(ulong mepc) { -- 2.40.1