linux-kernel - [PATCH v3 0/4] Consolidate IO memcpy functions

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Message-ID: <20240910134341.2537407-1-jvetter@kalrayinc.com>
Date: Tue, 10 Sep 2024 15:43:37 +0200
From: Julian Vetter <jvetter@...rayinc.com>
To: Arnd Bergmann <arnd@...db.de>, Catalin Marinas
 <catalin.marinas@....com>, Will Deacon <will@...nel.org>, Guo Ren
 <guoren@...nel.org>, Huacai Chen <chenhuacai@...nel.org>, WANG Xuerui
 <kernel@...0n.name>, Andrew Morton <akpm@...ux-foundation.org>
Cc: linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
 linux-csky@...r.kernel.org, loongarch@...ts.linux.dev, Yann Sionneau
 <ysionneau@...rayinc.com>, Julian Vetter <jvetter@...rayinc.com>
Subject: [PATCH v3 0/4] Consolidate IO memcpy functions

Fixed compilation problems on 32bit architectures.

Signed-off-by: Julian Vetter <jvetter@...rayinc.com>

---
Changes for v3:
- Replaced again 'if(IS_ENABLED(CONFIG_64BIT))' by '#ifdef CONFIG_64BIT'
  because on 32bit architectures (e.g., csky), __raw_{read,write}q are
  not defined. So, it leads to compilation errors
---
Julian Vetter (4):
  Consolidate __memcpy_{to,from}io and __memset_io into a single lib
  Use generic io memcpy functions on the arm64 architecture
  Use generic io memcpy functions on the csky architecture
  Use generic io memcpy functions on the loongarch architecture

 arch/arm64/Kconfig             |   1 +
 arch/arm64/kernel/io.c         |  87 --------------------------
 arch/csky/Kconfig              |   1 +
 arch/csky/kernel/Makefile      |   2 +-
 arch/csky/kernel/io.c          |  91 ---------------------------
 arch/loongarch/Kconfig         |   1 +
 arch/loongarch/kernel/Makefile |   2 +-
 arch/loongarch/kernel/io.c     |  94 ----------------------------
 lib/Kconfig                    |   3 +
 lib/Makefile                   |   1 +
 lib/io_copy.c                  | 110 +++++++++++++++++++++++++++++++++
 11 files changed, 119 insertions(+), 274 deletions(-)
 delete mode 100644 arch/csky/kernel/io.c
 delete mode 100644 arch/loongarch/kernel/io.c
 create mode 100644 lib/io_copy.c

-- 
2.34.1