From: Christoph Hellwig <hch@lst.de>
To: Arnd Bergmann <arnd@arndb.de>, Guo Ren <guoren@kernel.org>,
Michal Simek <monstr@monstr.eu>,
Greentime Hu <green.hu@gmail.com>,
Vincent Chen <deanbo422@gmail.com>, Guan Xuetao <gxt@pku.edu.cn>,
x86@kernel.org
Cc: linux-arch@vger.kernel.org, linux-s390@vger.kernel.org,
linux-ia64@vger.kernel.org, linux-parisc@vger.kernel.org,
linux-sh@vger.kernel.org, linux-hexagon@vger.kernel.org,
linux-xtensa@linux-xtensa.org, linux-mips@vger.kernel.org,
linux-kernel@vger.kernel.org, linux-m68k@lists.linux-m68k.org,
openrisc@lists.librecores.org, linux-mtd@lists.infradead.org,
linux-alpha@vger.kernel.org, sparclinux@vger.kernel.org,
nios2-dev@lists.rocketboards.org,
linux-riscv@lists.infradead.org,
linux-snps-arc@lists.infradead.org,
linux-arm-kernel@lists.infradead.org
Subject: [PATCH 12/26] x86: clean up ioremap
Date: Sat, 17 Aug 2019 09:32:39 +0200 [thread overview]
Message-ID: <20190817073253.27819-13-hch@lst.de> (raw)
In-Reply-To: <20190817073253.27819-1-hch@lst.de>
Use ioremap as the main implemented function, and defined
ioremap_nocache to it as a deprecated alias.
Signed-off-by: Christoph Hellwig <hch@lst.de>
---
arch/x86/include/asm/io.h | 8 ++------
arch/x86/mm/ioremap.c | 8 ++++----
arch/x86/mm/pageattr.c | 4 ++--
3 files changed, 8 insertions(+), 12 deletions(-)
diff --git a/arch/x86/include/asm/io.h b/arch/x86/include/asm/io.h
index 6bed97ff6db2..6b5cc41319a7 100644
--- a/arch/x86/include/asm/io.h
+++ b/arch/x86/include/asm/io.h
@@ -180,8 +180,6 @@ static inline unsigned int isa_virt_to_bus(volatile void *address)
* The default ioremap() behavior is non-cached; if you need something
* else, you probably want one of the following.
*/
-extern void __iomem *ioremap_nocache(resource_size_t offset, unsigned long size);
-#define ioremap_nocache ioremap_nocache
extern void __iomem *ioremap_uc(resource_size_t offset, unsigned long size);
#define ioremap_uc ioremap_uc
extern void __iomem *ioremap_cache(resource_size_t offset, unsigned long size);
@@ -205,11 +203,9 @@ extern void __iomem *ioremap_encrypted(resource_size_t phys_addr, unsigned long
* If the area you are trying to map is a PCI BAR you should have a
* look at pci_iomap().
*/
-static inline void __iomem *ioremap(resource_size_t offset, unsigned long size)
-{
- return ioremap_nocache(offset, size);
-}
+void __iomem *ioremap(resource_size_t offset, unsigned long size);
#define ioremap ioremap
+#define ioremap_nocache ioremap
extern void iounmap(volatile void __iomem *addr);
#define iounmap iounmap
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index 63e99f15d7cf..c9e90211bddb 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -279,11 +279,11 @@ __ioremap_caller(resource_size_t phys_addr, unsigned long size,
}
/**
- * ioremap_nocache - map bus memory into CPU space
+ * ioremap - map bus memory into CPU space
* @phys_addr: bus address of the memory
* @size: size of the resource to map
*
- * ioremap_nocache performs a platform specific sequence of operations to
+ * ioremap performs a platform specific sequence of operations to
* make bus memory CPU accessible via the readb/readw/readl/writeb/
* writew/writel functions and the other mmio helpers. The returned
* address is not guaranteed to be usable directly as a virtual
@@ -299,7 +299,7 @@ __ioremap_caller(resource_size_t phys_addr, unsigned long size,
*
* Must be freed with iounmap.
*/
-void __iomem *ioremap_nocache(resource_size_t phys_addr, unsigned long size)
+void __iomem *ioremap(resource_size_t phys_addr, unsigned long size)
{
/*
* Ideally, this should be:
@@ -314,7 +314,7 @@ void __iomem *ioremap_nocache(resource_size_t phys_addr, unsigned long size)
return __ioremap_caller(phys_addr, size, pcm,
__builtin_return_address(0), false);
}
-EXPORT_SYMBOL(ioremap_nocache);
+EXPORT_SYMBOL(ioremap);
/**
* ioremap_uc - map bus memory into CPU space as strongly uncachable
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 6a9a77a403c9..5b7a9231b85b 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -1774,7 +1774,7 @@ static inline int cpa_clear_pages_array(struct page **pages, int numpages,
int _set_memory_uc(unsigned long addr, int numpages)
{
/*
- * for now UC MINUS. see comments in ioremap_nocache()
+ * for now UC MINUS. see comments in ioremap()
* If you really need strong UC use ioremap_uc(), but note
* that you cannot override IO areas with set_memory_*() as
* these helpers cannot work with IO memory.
@@ -1789,7 +1789,7 @@ int set_memory_uc(unsigned long addr, int numpages)
int ret;
/*
- * for now UC MINUS. see comments in ioremap_nocache()
+ * for now UC MINUS. see comments in ioremap()
*/
ret = reserve_memtype(__pa(addr), __pa(addr) + numpages * PAGE_SIZE,
_PAGE_CACHE_MODE_UC_MINUS, NULL);
--
2.20.1
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next prev parent reply other threads:[~2019-08-17 7:52 UTC|newest]
Thread overview: 55+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-17 7:32 generic ioremap (and lots of cleanups) Christoph Hellwig
2019-08-17 7:32 ` [PATCH 01/26] mtd/maps/pxa2xx: use ioremap_cache insted of ioremap_cached Christoph Hellwig
2019-08-17 7:32 ` [PATCH 02/26] arm, unicore32: remove ioremap_cached Christoph Hellwig
2019-08-17 7:32 ` [PATCH 03/26] m68k, microblaze: remove ioremap_fullcache Christoph Hellwig
2019-08-19 8:50 ` Geert Uytterhoeven
2019-09-02 14:16 ` Michal Simek
2019-08-17 7:32 ` [PATCH 04/26] mips: remove ioremap_cachable Christoph Hellwig
2019-08-19 20:57 ` Paul Burton
2019-08-30 16:06 ` Christoph Hellwig
2019-09-03 8:57 ` Paul Burton
2019-08-17 7:32 ` [PATCH 05/26] openrisc: map as uncached in ioremap Christoph Hellwig
2019-08-23 13:55 ` Stafford Horne
2019-08-30 16:07 ` Christoph Hellwig
2019-08-30 21:45 ` Stafford Horne
2019-08-17 7:32 ` [PATCH 06/26] ia64: rename ioremap_nocache to ioremap_uc Christoph Hellwig
2019-08-17 16:00 ` Sergei Shtylyov
2019-08-17 7:32 ` [PATCH 07/26] hexagon: clean up ioremap Christoph Hellwig
2019-08-17 7:32 ` [PATCH 08/26] m68k: simplify ioremap_nocache Christoph Hellwig
2019-08-19 8:56 ` Geert Uytterhoeven
2019-08-19 9:18 ` Christoph Hellwig
2019-08-30 16:06 ` Christoph Hellwig
2019-09-02 7:53 ` Geert Uytterhoeven
2019-08-17 7:32 ` [PATCH 09/26] alpha: remove the unused __ioremap wrapper Christoph Hellwig
2019-08-17 7:32 ` [PATCH 10/26] nios2: remove __ioremap Christoph Hellwig
2019-08-17 7:32 ` [PATCH 11/26] parisc: " Christoph Hellwig
2019-08-17 7:32 ` Christoph Hellwig [this message]
2019-08-17 10:34 ` [PATCH 12/26] x86: clean up ioremap Ingo Molnar
2019-08-30 16:04 ` Christoph Hellwig
2019-08-17 7:32 ` [PATCH 13/26] xtensa: " Christoph Hellwig
2019-08-17 7:32 ` [PATCH 14/26] asm-generic: don't provide __ioremap Christoph Hellwig
2019-08-17 20:58 ` Paul Walmsley
2019-08-17 21:27 ` Paul Walmsley
[not found] ` <20190830160404.GA26887@lst.de>
2019-08-30 19:47 ` Arnd Bergmann
2019-09-02 8:01 ` Christoph Hellwig
2019-08-17 7:32 ` [PATCH 15/26] asm-generic: ioremap_uc should behave the same with and without MMU Christoph Hellwig
2019-08-17 21:07 ` Paul Walmsley
2019-08-17 7:32 ` [PATCH 16/26] asm-generic: don't provide ioremap for CONFIG_MMU Christoph Hellwig
2019-08-17 21:15 ` Paul Walmsley
2019-08-17 7:32 ` [PATCH 17/26] arch: rely on asm-generic/io.h for default ioremap_* definitions Christoph Hellwig
2019-08-17 21:13 ` Paul Walmsley
2019-08-17 7:32 ` [PATCH 18/26] m68k: rename __iounmap and mark it static Christoph Hellwig
2019-08-19 9:00 ` Geert Uytterhoeven
2019-08-17 7:32 ` [PATCH 19/26] arm64: remove __iounmap Christoph Hellwig
2019-08-19 7:36 ` Will Deacon
2019-08-30 16:05 ` Christoph Hellwig
2019-08-31 16:29 ` Will Deacon
2019-08-17 7:32 ` [PATCH 20/26] hexagon: " Christoph Hellwig
2019-08-17 7:32 ` [PATCH 21/26] nios2: " Christoph Hellwig
2019-08-17 7:32 ` [PATCH 22/26] sh: " Christoph Hellwig
2019-08-17 7:32 ` [PATCH 23/26] lib: provide a simple generic ioremap implementation Christoph Hellwig
2019-08-17 7:32 ` [PATCH 24/26] riscv: use the generic ioremap code Christoph Hellwig
2019-08-17 21:22 ` Paul Walmsley
2019-09-01 8:02 ` Christoph Hellwig
2019-08-17 7:32 ` [PATCH 25/26] csky: use generic ioremap Christoph Hellwig
2019-08-17 7:32 ` [PATCH 26/26] nds32: " Christoph Hellwig
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