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2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 
 kernel/arch/arm64/include/asm/cacheflush.h
....@@ -1,20 +1,9 @@
1
+/* SPDX-License-Identifier: GPL-2.0-only */
12 /*
23  * Based on arch/arm/include/asm/cacheflush.h
34  *
45  * Copyright (C) 1999-2002 Russell King.
56  * Copyright (C) 2012 ARM Ltd.
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- *
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- * This program is free software; you can redistribute it and/or modify
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- * it under the terms of the GNU General Public License version 2 as
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- * published by the Free Software Foundation.
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- *
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- * This program is distributed in the hope that it will be useful,
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- * but WITHOUT ANY WARRANTY; without even the implied warranty of
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- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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- * GNU General Public License for more details.
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- *
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- * You should have received a copy of the GNU General Public License
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- * along with this program.  If not, see <http://www.gnu.org/licenses/>.
187  */
198 #ifndef __ASM_CACHEFLUSH_H
209 #define __ASM_CACHEFLUSH_H
....@@ -40,10 +29,6 @@
4029  *	See Documentation/core-api/cachetlb.rst for more information. Please note that
4130  *	the implementation assumes non-aliasing VIPT D-cache and (aliasing)
4231  *	VIPT I-cache.
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- *
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- *	flush_cache_all()
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- *
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- *		Unconditionally clean and invalidate the entire cache.
4732  *
4833  *	flush_cache_mm(mm)
4934  *
....@@ -76,10 +61,8 @@
7661  *		- kaddr  - page address
7762  *		- size   - region size
7863  */
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-extern void flush_cache_all(void);
8064 extern void __flush_icache_range(unsigned long start, unsigned long end);
8165 extern int  invalidate_icache_range(unsigned long start, unsigned long end);
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-extern void __flush_dcache_all(void);
8366 extern void __flush_dcache_area(void *addr, size_t len);
8467 extern void __inval_dcache_area(void *addr, size_t len);
8568 extern void __clean_dcache_area_poc(void *addr, size_t len);
....@@ -111,20 +94,7 @@
11194 
11295 	kick_all_cpus_sync();
11396 }
114
-
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-static inline void flush_cache_mm(struct mm_struct *mm)
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-{
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-}
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-
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-static inline void flush_cache_page(struct vm_area_struct *vma,
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-				    unsigned long user_addr, unsigned long pfn)
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-{
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-}
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-
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-static inline void flush_cache_range(struct vm_area_struct *vma,
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-				     unsigned long start, unsigned long end)
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-{
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-}
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+#define flush_icache_range flush_icache_range
12898 
12999 /*
130100  * Cache maintenance functions used by the DMA API. No to be used directly.
....@@ -132,15 +102,6 @@
132102 extern void __dma_map_area(const void *, size_t, int);
133103 extern void __dma_unmap_area(const void *, size_t, int);
134104 extern void __dma_flush_area(const void *, size_t);
135
-extern void __dma_inv_area(const void *start, size_t size);
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-extern void __dma_clean_area(const void *start, size_t size);
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-
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-#define dmac_flush_range(start, end) \
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-	__dma_flush_area(start, (void *)(end) - (void *)(start))
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-#define dmac_inv_range(start, end) \
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-	__dma_inv_area(start, (void *)(end) - (void *)(start))
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-#define dmac_clean_range(start, end) \
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-	__dma_clean_area(start, (void *)(end) - (void *)(start))
144105 
145106 /*
146107  * Copy user data from/to a page which is mapped into a different
....@@ -149,12 +110,7 @@
149110  */
150111 extern void copy_to_user_page(struct vm_area_struct *, struct page *,
151112 	unsigned long, void *, const void *, unsigned long);
152
-#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
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-	do {							\
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-		memcpy(dst, src, len);				\
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-	} while (0)
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-
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-#define flush_cache_dup_mm(mm) flush_cache_mm(mm)
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+#define copy_to_user_page copy_to_user_page
158114 
159115 /*
160116  * flush_dcache_page is used when the kernel has written to the page
....@@ -171,7 +127,7 @@
171127 #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
172128 extern void flush_dcache_page(struct page *);
173129 
174
-static inline void __flush_icache_all(void)
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+static __always_inline void __flush_icache_all(void)
175131 {
176132 	if (cpus_have_const_cap(ARM64_HAS_CACHE_DIC))
177133 		return;
....@@ -180,26 +136,11 @@
180136 	dsb(ish);
181137 }
182138 
183
-#define flush_dcache_mmap_lock(mapping)		do { } while (0)
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-#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
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-
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-/*
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- * We don't appear to need to do anything here.  In fact, if we did, we'd
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- * duplicate cache flushing elsewhere performed by flush_dcache_page().
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- */
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-#define flush_icache_page(vma,page)	do { } while (0)
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-
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-/*
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- * Not required on AArch64 (PIPT or VIPT non-aliasing D-cache).
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- */
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-static inline void flush_cache_vmap(unsigned long start, unsigned long end)
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-{
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-}
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-
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-static inline void flush_cache_vunmap(unsigned long start, unsigned long end)
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-{
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-}
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-
203139 int set_memory_valid(unsigned long addr, int numpages, int enable);
204140 
205
-#endif
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+int set_direct_map_invalid_noflush(struct page *page);
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+int set_direct_map_default_noflush(struct page *page);
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+
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+#include <asm-generic/cacheflush.h>
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+
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+#endif /* __ASM_CACHEFLUSH_H */