change otg to host mode

hc

2024-05-11 04dd17822334871b23ea2862f7798fb0e0007777

 kernel/arch/nds32/include/asm/highmem.h
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@@ -1,4 +1,4 @@
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-// SPDX-License-Identifier: GPL-2.0
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+/* SPDX-License-Identifier: GPL-2.0 */
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 // Copyright (C) 2005-2017 Andes Technology Corporation
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 #ifndef _ASM_HIGHMEM_H
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@@ -7,7 +7,6 @@
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 #include <asm/proc-fns.h>
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 #include <asm/kmap_types.h>
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 #include <asm/fixmap.h>
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-#include <asm/pgtable.h>
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 /*
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  * Right now we initialize only a single pte table. It can be extended
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@@ -32,7 +31,6 @@
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 #define LAST_PKMAP_MASK		(LAST_PKMAP - 1)
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 #define PKMAP_NR(virt)		(((virt) - (PKMAP_BASE)) >> PAGE_SHIFT)
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 #define PKMAP_ADDR(nr)		(PKMAP_BASE + ((nr) << PAGE_SHIFT))
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-#define kmap_prot		PAGE_KERNEL
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 static inline void flush_cache_kmaps(void)
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 {
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@@ -44,9 +42,6 @@
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 extern pte_t *pkmap_page_table;
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-extern void *kmap_high(struct page *page);
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-extern void kunmap_high(struct page *page);
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-
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 extern void kmap_init(void);
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 /*
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@@ -54,12 +49,7 @@
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  * when CONFIG_HIGHMEM is not set.
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  */
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 #ifdef CONFIG_HIGHMEM
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-extern void *kmap(struct page *page);
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-extern void kunmap(struct page *page);
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-extern void *kmap_atomic(struct page *page);
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-extern void __kunmap_atomic(void *kvaddr);
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 extern void *kmap_atomic_pfn(unsigned long pfn);
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-extern struct page *kmap_atomic_to_page(void *ptr);
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 #endif
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 #endif