Messages in this thread Patch in this message | | | From | Christophe Leroy <> | Subject | [RFC PATCH 4/8] mm: ioremap: allow ARCH to have its own ioremap definition | Date | Wed, 12 Oct 2022 12:09:40 +0200 |
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From: Baoquan He <bhe@redhat.com>
Architectures like xtensa, arc, can be converted to GENERIC_IOREMAP, to take standard ioremap_prot() and ioremap_xxx() way. But they have ARCH specific handling for ioremap() method, than standard ioremap() method.
In oder to convert them to take GENERIC_IOREMAP method, allow these architecutres to have their own ioremap definition.
This is a preparation patch, no functionality change.
Signed-off-by: Baoquan He <bhe@redhat.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: linux-arch@vger.kernel.org Cc: Kefeng Wang <wangkefeng.wang@huawei.com> --- include/asm-generic/io.h | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h index 43eb4f62e954..b2ed73708a3e 100644 --- a/include/asm-generic/io.h +++ b/include/asm-generic/io.h @@ -1081,11 +1081,14 @@ void __iomem *ioremap_prot(phys_addr_t phys_addr, size_t size, void iounmap(volatile void __iomem *addr); void generic_iounmap(volatile void __iomem *addr); +#ifndef ioremap +#define ioremap ioremap static inline void __iomem *ioremap(phys_addr_t addr, size_t size) { /* _PAGE_IOREMAP needs to be supplied by the architecture */ return ioremap_prot(addr, size, _PAGE_IOREMAP); } +#endif #endif /* !CONFIG_MMU || CONFIG_GENERIC_IOREMAP */ #ifndef ioremap_wc -- 2.37.1
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