From: Baoquan He <bhe@redhat.com>
To: linux-kernel@vger.kernel.org
Cc: akpm@linux-foundation.org, linux-mm@kvack.org, arnd@arndb.de,
hch@lst.de, christophe.leroy@csgroup.eu, rppt@kernel.org,
willy@infradead.org, agordeev@linux.ibm.com,
wangkefeng.wang@huawei.com, schnelle@linux.ibm.com,
shorne@gmail.com, David.Laight@ACULAB.COM, deller@gmx.de,
nathan@kernel.org, glaubitz@physik.fu-berlin.de,
Baoquan He <bhe@redhat.com>,
Geert Uytterhoeven <geert@linux-m68k.org>
Subject: [PATCH v8 01/19] asm-generic/iomap.h: remove ARCH_HAS_IOREMAP_xx macros
Date: Thu, 6 Jul 2023 23:45:02 +0800 [thread overview]
Message-ID: <20230706154520.11257-2-bhe@redhat.com> (raw)
In-Reply-To: <20230706154520.11257-1-bhe@redhat.com>
Let's use '#define ioremap_xx' and "#ifdef ioremap_xx" instead.
To remove defined ARCH_HAS_IOREMAP_xx macros in <asm/io.h> of each ARCH,
the ARCH's own ioremap_wc|wt|np definition need be above
"#include <asm-generic/iomap.h>. Otherwise the redefinition error would
be seen during compiling. So the relevant adjustments are made to avoid
compiling error:
loongarch:
- doesn't include <asm-generic/iomap.h>, defining ARCH_HAS_IOREMAP_WC
is redundant, so simply remove it.
m68k:
- selected GENERIC_IOMAP, <asm-generic/iomap.h> has been added in
<asm-generic/io.h>, and <asm/kmap.h> is included above
<asm-generic/iomap.h>, so simply remove ARCH_HAS_IOREMAP_WT defining.
mips:
- move "#include <asm-generic/iomap.h>" below ioremap_wc definition
in <asm/io.h>
powerpc:
- remove "#include <asm-generic/iomap.h>" in <asm/io.h> because it's
duplicated with the one in <asm-generic/io.h>, let's rely on the
latter.
x86:
- selected GENERIC_IOMAP, remove #include <asm-generic/iomap.h> in
the middle of <asm/io.h>. Let's rely on <asm-generic/io.h>.
Signed-off-by: Baoquan He <bhe@redhat.com>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Mike Rapoport (IBM) <rppt@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
arch/loongarch/include/asm/io.h | 2 --
arch/m68k/include/asm/io_mm.h | 2 --
arch/m68k/include/asm/kmap.h | 2 --
arch/mips/include/asm/io.h | 5 ++---
arch/powerpc/include/asm/io.h | 9 +--------
arch/x86/include/asm/io.h | 5 -----
drivers/net/ethernet/sfc/io.h | 2 +-
drivers/net/ethernet/sfc/siena/io.h | 2 +-
include/asm-generic/iomap.h | 6 +++---
9 files changed, 8 insertions(+), 27 deletions(-)
diff --git a/arch/loongarch/include/asm/io.h b/arch/loongarch/include/asm/io.h
index 1c9410220040..0dcb36b32cb2 100644
--- a/arch/loongarch/include/asm/io.h
+++ b/arch/loongarch/include/asm/io.h
@@ -5,8 +5,6 @@
#ifndef _ASM_IO_H
#define _ASM_IO_H
-#define ARCH_HAS_IOREMAP_WC
-
#include <linux/kernel.h>
#include <linux/types.h>
diff --git a/arch/m68k/include/asm/io_mm.h b/arch/m68k/include/asm/io_mm.h
index d41fa488453b..6a0abd4846c6 100644
--- a/arch/m68k/include/asm/io_mm.h
+++ b/arch/m68k/include/asm/io_mm.h
@@ -26,8 +26,6 @@
#include <asm/virtconvert.h>
#include <asm/kmap.h>
-#include <asm-generic/iomap.h>
-
#ifdef CONFIG_ATARI
#define atari_readb raw_inb
#define atari_writeb raw_outb
diff --git a/arch/m68k/include/asm/kmap.h b/arch/m68k/include/asm/kmap.h
index dec05743d426..4efb3efa593a 100644
--- a/arch/m68k/include/asm/kmap.h
+++ b/arch/m68k/include/asm/kmap.h
@@ -4,8 +4,6 @@
#ifdef CONFIG_MMU
-#define ARCH_HAS_IOREMAP_WT
-
/* Values for nocacheflag and cmode */
#define IOMAP_FULL_CACHING 0
#define IOMAP_NOCACHE_SER 1
diff --git a/arch/mips/include/asm/io.h b/arch/mips/include/asm/io.h
index affd21e9c20b..062dd4e6b954 100644
--- a/arch/mips/include/asm/io.h
+++ b/arch/mips/include/asm/io.h
@@ -12,8 +12,6 @@
#ifndef _ASM_IO_H
#define _ASM_IO_H
-#define ARCH_HAS_IOREMAP_WC
-
#include <linux/compiler.h>
#include <linux/kernel.h>
#include <linux/types.h>
@@ -25,7 +23,6 @@
#include <asm/byteorder.h>
#include <asm/cpu.h>
#include <asm/cpu-features.h>
-#include <asm-generic/iomap.h>
#include <asm/page.h>
#include <asm/pgtable-bits.h>
#include <asm/processor.h>
@@ -210,6 +207,8 @@ void iounmap(const volatile void __iomem *addr);
#define ioremap_wc(offset, size) \
ioremap_prot((offset), (size), boot_cpu_data.writecombine)
+#include <asm-generic/iomap.h>
+
#if defined(CONFIG_CPU_CAVIUM_OCTEON)
#define war_io_reorder_wmb() wmb()
#else
diff --git a/arch/powerpc/include/asm/io.h b/arch/powerpc/include/asm/io.h
index f1e657c9bbe8..67a3fb6de498 100644
--- a/arch/powerpc/include/asm/io.h
+++ b/arch/powerpc/include/asm/io.h
@@ -3,11 +3,6 @@
#define _ASM_POWERPC_IO_H
#ifdef __KERNEL__
-#define ARCH_HAS_IOREMAP_WC
-#ifdef CONFIG_PPC32
-#define ARCH_HAS_IOREMAP_WT
-#endif
-
/*
*/
@@ -732,9 +727,7 @@ static inline void name at \
#define writel_relaxed(v, addr) writel(v, addr)
#define writeq_relaxed(v, addr) writeq(v, addr)
-#ifdef CONFIG_GENERIC_IOMAP
-#include <asm-generic/iomap.h>
-#else
+#ifndef CONFIG_GENERIC_IOMAP
/*
* Here comes the implementation of the IOMAP interfaces.
*/
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index e9025640f634..76238842406a 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -35,9 +35,6 @@
* - Arnaldo Carvalho de Melo <acme@conectiva.com.br>
*/
-#define ARCH_HAS_IOREMAP_WC
-#define ARCH_HAS_IOREMAP_WT
-
#include <linux/string.h>
#include <linux/compiler.h>
#include <linux/cc_platform.h>
@@ -212,8 +209,6 @@ void memset_io(volatile void __iomem *, int, size_t);
#define memcpy_toio memcpy_toio
#define memset_io memset_io
-#include <asm-generic/iomap.h>
-
/*
* ISA space is 'always mapped' on a typical x86 system, no need to
* explicitly ioremap() it. The fact that the ISA IO space is mapped
diff --git a/drivers/net/ethernet/sfc/io.h b/drivers/net/ethernet/sfc/io.h
index 30439cc83a89..07f99ad14bf3 100644
--- a/drivers/net/ethernet/sfc/io.h
+++ b/drivers/net/ethernet/sfc/io.h
@@ -70,7 +70,7 @@
*/
#ifdef CONFIG_X86_64
/* PIO is a win only if write-combining is possible */
-#ifdef ARCH_HAS_IOREMAP_WC
+#ifdef ioremap_wc
#define EFX_USE_PIO 1
#endif
#endif
diff --git a/drivers/net/ethernet/sfc/siena/io.h b/drivers/net/ethernet/sfc/siena/io.h
index 30439cc83a89..07f99ad14bf3 100644
--- a/drivers/net/ethernet/sfc/siena/io.h
+++ b/drivers/net/ethernet/sfc/siena/io.h
@@ -70,7 +70,7 @@
*/
#ifdef CONFIG_X86_64
/* PIO is a win only if write-combining is possible */
-#ifdef ARCH_HAS_IOREMAP_WC
+#ifdef ioremap_wc
#define EFX_USE_PIO 1
#endif
#endif
diff --git a/include/asm-generic/iomap.h b/include/asm-generic/iomap.h
index 08237ae8b840..196087a8126e 100644
--- a/include/asm-generic/iomap.h
+++ b/include/asm-generic/iomap.h
@@ -93,15 +93,15 @@ extern void __iomem *ioport_map(unsigned long port, unsigned int nr);
extern void ioport_unmap(void __iomem *);
#endif
-#ifndef ARCH_HAS_IOREMAP_WC
+#ifndef ioremap_wc
#define ioremap_wc ioremap
#endif
-#ifndef ARCH_HAS_IOREMAP_WT
+#ifndef ioremap_wt
#define ioremap_wt ioremap
#endif
-#ifndef ARCH_HAS_IOREMAP_NP
+#ifndef ioremap_np
/* See the comment in asm-generic/io.h about ioremap_np(). */
#define ioremap_np ioremap_np
static inline void __iomem *ioremap_np(phys_addr_t offset, size_t size)
--
2.34.1
next prev parent reply other threads:[~2023-07-06 15:46 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-07-06 15:45 [PATCH v8 00/19] mm: ioremap: Convert architectures to take GENERIC_IOREMAP way Baoquan He
2023-07-06 15:45 ` Baoquan He [this message]
2023-07-06 15:45 ` [PATCH v8 02/19] hexagon: mm: Convert to GENERIC_IOREMAP Baoquan He
2023-07-10 6:32 ` Christoph Hellwig
2023-07-06 15:45 ` [PATCH v8 03/19] openrisc: mm: remove unneeded early ioremap code Baoquan He
2023-07-06 15:45 ` [PATCH v8 04/19] mm/ioremap: Define generic_ioremap_prot() and generic_iounmap() Baoquan He
2023-07-06 15:45 ` [PATCH v8 05/19] mm: ioremap: allow ARCH to have its own ioremap method definition Baoquan He
2023-07-06 15:45 ` [PATCH v8 06/19] mm/ioremap: add slab availability checking in ioremap_prot Baoquan He
2023-07-06 15:45 ` [PATCH v8 07/19] arc: mm: Convert to GENERIC_IOREMAP Baoquan He
2023-07-06 15:45 ` Baoquan He
2023-07-06 15:45 ` [PATCH v8 08/19] ia64: " Baoquan He
2023-07-06 15:45 ` [PATCH v8 09/19] openrisc: " Baoquan He
2023-07-06 15:45 ` [PATCH v8 10/19] s390: " Baoquan He
2023-07-06 15:45 ` [PATCH v8 11/19] sh: add <asm-generic/io.h> including Baoquan He
2023-07-10 8:17 ` Geert Uytterhoeven
2023-07-10 8:45 ` John Paul Adrian Glaubitz
2023-07-10 10:47 ` Arnd Bergmann
2023-08-01 19:21 ` John Paul Adrian Glaubitz
2023-08-02 14:19 ` Arnd Bergmann
2023-08-02 17:28 ` John Paul Adrian Glaubitz
2023-07-06 15:45 ` [PATCH v8 12/19] sh: mm: Convert to GENERIC_IOREMAP Baoquan He
2023-07-06 15:45 ` [PATCH v8 13/19] xtensa: " Baoquan He
2023-07-06 15:45 ` [PATCH v8 14/19] parisc: " Baoquan He
2023-07-06 15:45 ` [PATCH v8 15/19] mm/ioremap: Consider IOREMAP space in generic ioremap Baoquan He
2023-07-06 15:45 ` [PATCH v8 16/19] mm: move is_ioremap_addr() into new header file Baoquan He
2023-07-06 15:45 ` [PATCH v8 17/19] powerpc: mm: Convert to GENERIC_IOREMAP Baoquan He
2023-07-06 15:45 ` Baoquan He
2023-07-06 15:45 ` [PATCH v8 18/19] arm64 : mm: add wrapper function ioremap_prot() Baoquan He
2023-07-06 15:45 ` Baoquan He
2023-07-06 15:45 ` [PATCH v8 19/19] mm: ioremap: remove unneeded ioremap_allowed and iounmap_allowed Baoquan He
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