add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/arch/xtensa/include/asm/io.h
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@@ -11,7 +11,6 @@
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 #ifndef _XTENSA_IO_H
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 #define _XTENSA_IO_H
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-#ifdef __KERNEL__
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 #include <asm/byteorder.h>
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 #include <asm/page.h>
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 #include <asm/vectors.h>
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@@ -22,6 +21,7 @@
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 #define IOADDR(x)		(XCHAL_KIO_BYPASS_VADDR + (x))
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 #define IO_SPACE_LIMIT ~0
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+#define PCI_IOBASE		((void __iomem *)XCHAL_KIO_BYPASS_VADDR)
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 #ifdef CONFIG_MMU
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@@ -32,8 +32,7 @@
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 /*
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  * Return the virtual address for the specified bus memory.
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  */
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-static inline void __iomem *ioremap_nocache(unsigned long offset,
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-		unsigned long size)
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+static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
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 {
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 	if (offset >= XCHAL_KIO_PADDR
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 	    && offset - XCHAL_KIO_PADDR < XCHAL_KIO_SIZE)
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@@ -52,15 +51,6 @@
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 		return xtensa_ioremap_cache(offset, size);
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 }
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 #define ioremap_cache ioremap_cache
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-#define ioremap_nocache ioremap_nocache
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-
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-#define ioremap_wc ioremap_nocache
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-#define ioremap_wt ioremap_nocache
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-
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-static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
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-{
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-	return ioremap_nocache(offset, size);
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-}
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 static inline void iounmap(volatile void __iomem *addr)
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 {
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@@ -77,8 +67,6 @@
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 #define bus_to_virt     phys_to_virt
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 #endif /* CONFIG_MMU */
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-
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-#endif	/* __KERNEL__ */
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 #include <asm-generic/io.h>
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