66 lines
1.9 KiB
C
66 lines
1.9 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
// Copyright (C) 2018 Hangzhou C-SKY Microsystems co.,ltd.
|
|
|
|
#ifndef __ABI_CSKY_CACHEFLUSH_H
|
|
#define __ABI_CSKY_CACHEFLUSH_H
|
|
|
|
#include <linux/mm.h>
|
|
#include <asm/string.h>
|
|
#include <asm/cache.h>
|
|
|
|
#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
|
|
extern void flush_dcache_page(struct page *);
|
|
|
|
#define flush_cache_mm(mm) dcache_wbinv_all()
|
|
#define flush_cache_page(vma, page, pfn) cache_wbinv_all()
|
|
#define flush_cache_dup_mm(mm) cache_wbinv_all()
|
|
|
|
#define ARCH_HAS_FLUSH_KERNEL_DCACHE_PAGE
|
|
extern void flush_kernel_dcache_page(struct page *);
|
|
|
|
#define flush_dcache_mmap_lock(mapping) xa_lock_irq(&mapping->i_pages)
|
|
#define flush_dcache_mmap_unlock(mapping) xa_unlock_irq(&mapping->i_pages)
|
|
|
|
static inline void flush_kernel_vmap_range(void *addr, int size)
|
|
{
|
|
dcache_wbinv_all();
|
|
}
|
|
static inline void invalidate_kernel_vmap_range(void *addr, int size)
|
|
{
|
|
dcache_wbinv_all();
|
|
}
|
|
|
|
#define ARCH_HAS_FLUSH_ANON_PAGE
|
|
static inline void flush_anon_page(struct vm_area_struct *vma,
|
|
struct page *page, unsigned long vmaddr)
|
|
{
|
|
if (PageAnon(page))
|
|
cache_wbinv_all();
|
|
}
|
|
|
|
/*
|
|
* if (current_mm != vma->mm) cache_wbinv_range(start, end) will be broken.
|
|
* Use cache_wbinv_all() here and need to be improved in future.
|
|
*/
|
|
extern void flush_cache_range(struct vm_area_struct *vma, unsigned long start, unsigned long end);
|
|
#define flush_cache_vmap(start, end) cache_wbinv_all()
|
|
#define flush_cache_vunmap(start, end) cache_wbinv_all()
|
|
|
|
#define flush_icache_page(vma, page) do {} while (0);
|
|
#define flush_icache_range(start, end) cache_wbinv_range(start, end)
|
|
#define flush_icache_mm_range(mm, start, end) cache_wbinv_range(start, end)
|
|
#define flush_icache_deferred(mm) do {} while (0);
|
|
|
|
#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
|
|
do { \
|
|
memcpy(dst, src, len); \
|
|
} while (0)
|
|
|
|
#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
|
|
do { \
|
|
memcpy(dst, src, len); \
|
|
cache_wbinv_all(); \
|
|
} while (0)
|
|
|
|
#endif /* __ABI_CSKY_CACHEFLUSH_H */
|