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Mon, 30 Mar 2026 02:48:58 -0700 (PDT) From: Lisa Robinson To: Huacai Chen , WANG Xuerui Cc: loongarch@lists.linux.dev, linux-kernel@vger.kernel.org, Lisa Robinson Subject: [PATCH] LoongArch: Align FPU register state to 32 bytes Date: Mon, 30 Mar 2026 17:48:45 +0800 Message-ID: <20260330094845.39-1-lisa@bytefly.space> X-Mailer: git-send-email 2.53.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Move fpr to the beginning of struct loongarch_fpu so it is naturally aligned to FPU_ALIGN (32 bytes), improving 256-bit SIMD (LASX) context switch performance. Signed-off-by: Lisa Robinson --- arch/loongarch/include/asm/processor.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/loongarch/include/asm/processor.h b/arch/loongarch/includ= e/asm/processor.h index c3bc44b5f5b3..ce8b953f8c79 100644 --- a/arch/loongarch/include/asm/processor.h +++ b/arch/loongarch/include/asm/processor.h @@ -80,10 +80,10 @@ BUILD_FPR_ACCESS(32) BUILD_FPR_ACCESS(64) =20 struct loongarch_fpu { + union fpureg fpr[NUM_FPU_REGS]; uint64_t fcc; /* 8x8 */ uint32_t fcsr; uint32_t ftop; - union fpureg fpr[NUM_FPU_REGS]; }; =20 struct loongarch_lbt { --=20 2.53.0