D7net
Home
Console
Upload
information
Create File
Create Folder
About
Tools
:
/
lib
/
modules
/
5.4.0-216-generic
/
build
/
arch
/
ia64
/
include
/
asm
/
Filename :
cacheflush.h
back
Copy
/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_IA64_CACHEFLUSH_H #define _ASM_IA64_CACHEFLUSH_H /* * Copyright (C) 2002 Hewlett-Packard Co * David Mosberger-Tang <davidm@hpl.hp.com> */ #include <linux/page-flags.h> #include <linux/bitops.h> #include <asm/page.h> /* * Cache flushing routines. This is the kind of stuff that can be very expensive, so try * to avoid them whenever possible. */ #define flush_cache_all() do { } while (0) #define flush_cache_mm(mm) do { } while (0) #define flush_cache_dup_mm(mm) do { } while (0) #define flush_cache_range(vma, start, end) do { } while (0) #define flush_cache_page(vma, vmaddr, pfn) do { } while (0) #define flush_icache_page(vma,page) do { } while (0) #define flush_cache_vmap(start, end) do { } while (0) #define flush_cache_vunmap(start, end) do { } while (0) #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 #define flush_dcache_page(page) \ do { \ clear_bit(PG_arch_1, &(page)->flags); \ } while (0) #define flush_dcache_mmap_lock(mapping) do { } while (0) #define flush_dcache_mmap_unlock(mapping) do { } while (0) extern void flush_icache_range (unsigned long start, unsigned long end); extern void clflush_cache_range(void *addr, int size); #define flush_icache_user_range(vma, page, user_addr, len) \ do { \ unsigned long _addr = (unsigned long) page_address(page) + ((user_addr) & ~PAGE_MASK); \ flush_icache_range(_addr, _addr + (len)); \ } while (0) #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ do { memcpy(dst, src, len); \ flush_icache_user_range(vma, page, vaddr, len); \ } while (0) #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ memcpy(dst, src, len) #endif /* _ASM_IA64_CACHEFLUSH_H */