linux-kernel - [PATCH 3/6] parisc: stop using asm-generic/iomap.h

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Message-Id: <20250315105907.1275012-4-arnd@kernel.org>
Date: Sat, 15 Mar 2025 11:59:04 +0100
From: Arnd Bergmann <arnd@...nel.org>
To: linux-arch@...r.kernel.org
Cc: Arnd Bergmann <arnd@...db.de>,
	Richard Henderson <richard.henderson@...aro.org>,
	Matt Turner <mattst88@...il.com>,
	Geert Uytterhoeven <geert@...ux-m68k.org>,
	Greg Ungerer <gerg@...ux-m68k.org>,
	Thomas Bogendoerfer <tsbogend@...ha.franken.de>,
	"James E.J. Bottomley" <James.Bottomley@...senPartnership.com>,
	Helge Deller <deller@....de>,
	Madhavan Srinivasan <maddy@...ux.ibm.com>,
	Michael Ellerman <mpe@...erman.id.au>,
	Nicholas Piggin <npiggin@...il.com>,
	Christophe Leroy <christophe.leroy@...roup.eu>,
	Naveen N Rao <naveen@...nel.org>,
	Yoshinori Sato <ysato@...rs.sourceforge.jp>,
	Rich Felker <dalias@...c.org>,
	John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>,
	Julian Vetter <julian@...er-limits.org>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	linux-alpha@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-m68k@...ts.linux-m68k.org,
	linux-mips@...r.kernel.org,
	linux-parisc@...r.kernel.org,
	linuxppc-dev@...ts.ozlabs.org,
	linux-sh@...r.kernel.org
Subject: [PATCH 3/6] parisc: stop using asm-generic/iomap.h

From: Arnd Bergmann <arnd@...db.de>

parisc uses custom iomap helpers to map bus specific function calls into
a linear __iomem token, but it tries to use the declarations from the x86
"generic iomap" code.

Untangle the two by duplicating the required declations and dropping
the #include that pulls in more stuff that is not needed here, to
allow simplify the generic version later.

Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 arch/parisc/include/asm/io.h | 36 +++++++++++++++++++++++++++---------
 1 file changed, 27 insertions(+), 9 deletions(-)

diff --git a/arch/parisc/include/asm/io.h b/arch/parisc/include/asm/io.h
index 3143cf29ce27..59d85d2386bb 100644
--- a/arch/parisc/include/asm/io.h
+++ b/arch/parisc/include/asm/io.h
@@ -227,36 +227,54 @@ extern void outsl (unsigned long port, const void *src, unsigned long count);
 #define F_EXTEND(x) ((unsigned long)((x) | (0xffffffff00000000ULL)))
 
 #ifdef CONFIG_64BIT
-#define ioread64 ioread64
-#define ioread64be ioread64be
-#define iowrite64 iowrite64
-#define iowrite64be iowrite64be
 extern u64 ioread64(const void __iomem *addr);
 extern u64 ioread64be(const void __iomem *addr);
+#define ioread64 ioread64
+#define ioread64be ioread64be
+
 extern void iowrite64(u64 val, void __iomem *addr);
 extern void iowrite64be(u64 val, void __iomem *addr);
+#define iowrite64 iowrite64
+#define iowrite64be iowrite64be
 #endif
 
-#include <asm-generic/iomap.h>
-/*
- * These get provided from <asm-generic/iomap.h> since parisc does not
- * select GENERIC_IOMAP.
- */
+extern void __iomem *ioport_map(unsigned long port, unsigned int nr);
+extern void ioport_unmap(void __iomem *);
 #define ioport_map ioport_map
 #define ioport_unmap ioport_unmap
+
+extern unsigned int ioread8(const void __iomem *);
+extern unsigned int ioread16(const void __iomem *);
+extern unsigned int ioread16be(const void __iomem *);
+extern unsigned int ioread32(const void __iomem *);
+extern unsigned int ioread32be(const void __iomem *);
 #define ioread8 ioread8
 #define ioread16 ioread16
 #define ioread32 ioread32
 #define ioread16be ioread16be
 #define ioread32be ioread32be
+
+extern void iowrite8(u8, void __iomem *);
+extern void iowrite16(u16, void __iomem *);
+extern void iowrite16be(u16, void __iomem *);
+extern void iowrite32(u32, void __iomem *);
+extern void iowrite32be(u32, void __iomem *);
 #define iowrite8 iowrite8
 #define iowrite16 iowrite16
 #define iowrite32 iowrite32
 #define iowrite16be iowrite16be
 #define iowrite32be iowrite32be
+
+extern void ioread8_rep(const void __iomem *port, void *buf, unsigned long count);
+extern void ioread16_rep(const void __iomem *port, void *buf, unsigned long count);
+extern void ioread32_rep(const void __iomem *port, void *buf, unsigned long count);
 #define ioread8_rep ioread8_rep
 #define ioread16_rep ioread16_rep
 #define ioread32_rep ioread32_rep
+
+extern void iowrite8_rep(void __iomem *port, const void *buf, unsigned long count);
+extern void iowrite16_rep(void __iomem *port, const void *buf, unsigned long count);
+extern void iowrite32_rep(void __iomem *port, const void *buf, unsigned long count);
 #define iowrite8_rep iowrite8_rep
 #define iowrite16_rep iowrite16_rep
 #define iowrite32_rep iowrite32_rep
-- 
2.39.5