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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: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org On Mon, 13 Sep 2021 12:19:54 +0000 Chen Huang wrote: > The RISCV ISA can support unaligned memory accesses, so the patchset > selects HAVE_EFFICIENT_UNALIGNED_ACCESS and supports DCACHE_WORD_ACCESS NO, per the spec, "Even when misaligned loads and stores complete successfully, these accesses might run extremely slowly depending on the implementation". it's far away from "efficient" > to improve the efficiency of unaligned memory accesses. > > Chen Huang (2): > riscv: Kconfig: select HAVE_EFFICIENT_UNALIGNED_ACCESS > riscv: Support DCACHE_WORD_ACCESS > > arch/riscv/Kconfig | 2 ++ > arch/riscv/include/asm/word-at-a-time.h | 36 +++++++++++++++++++++++++ > 2 files changed, 38 insertions(+) > _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv