From: Yunhui Cui <cuiyunhui@bytedance.com>
To: paul.walmsley@sifive.com, palmer@dabbelt.com,
aou@eecs.berkeley.edu, alex@ghiti.fr, akpm@linux-foundation.org,
catalin.marinas@arm.com, anshuman.khandual@arm.com,
kas@kernel.org, ryan.roberts@arm.com, cuiyunhui@bytedance.com,
samuel.holland@sifive.com, namcao@linutronix.de,
willy@infradead.org, abrestic@rivosinc.com,
yongxuan.wang@sifive.com, apopple@nvidia.com,
linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH 0/1] introduce ioremap_wc()
Date: Tue, 22 Jul 2025 17:15:03 +0800 [thread overview]
Message-ID: <20250722091504.45974-1-cuiyunhui@bytedance.com> (raw)
Compared with IO attributes, NC attributes can improve performance,
specifically in these aspects: Relaxed Order, Gathering, Supports Read
Speculation, Supports Unaligned Access.
When I replied to this patch (https://lore.kernel.org/all/CAEEQ3wmVPrZ6s8msM8RgcyZePGhXM1ikYMc5wW2n8q3Bf90EVw@mail.gmail.com/),
I found the author's email address was invalid. So, based on this patch,
I made slight modifications and resubmitted it.
Yunhui Cui (1):
riscv: introduce ioremap_wc()
arch/riscv/include/asm/io.h | 4 ++++
arch/riscv/include/asm/pgtable.h | 1 +
2 files changed, 5 insertions(+)
--
2.39.5
next reply other threads:[~2025-07-22 9:15 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-22 9:15 Yunhui Cui [this message]
2025-07-22 9:15 ` [PATCH 1/1] riscv: " Yunhui Cui
2025-07-31 14:39 ` Alexandre Ghiti
2025-08-06 17:15 ` [PATCH 0/1] " patchwork-bot+linux-riscv
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