diff options
| author |   Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
|---|---|---|
| committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
| commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
| tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/score/include/asm/cacheflush.h | |
| parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) | |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/score/include/asm/cacheflush.h')
| -rw-r--r-- | kernel/arch/score/include/asm/cacheflush.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/kernel/arch/score/include/asm/cacheflush.h b/kernel/arch/score/include/asm/cacheflush.h new file mode 100644 index 000000000..1d545d0ce --- /dev/null +++ b/kernel/arch/score/include/asm/cacheflush.h @@ -0,0 +1,48 @@ +#ifndef _ASM_SCORE_CACHEFLUSH_H +#define _ASM_SCORE_CACHEFLUSH_H + +/* Keep includes the same across arches. */ +#include <linux/mm.h> + +extern void flush_cache_all(void); +extern void flush_cache_mm(struct mm_struct *mm); +extern void flush_cache_range(struct vm_area_struct *vma, + unsigned long start, unsigned long end); +extern void flush_cache_page(struct vm_area_struct *vma, + unsigned long page, unsigned long pfn); +extern void flush_cache_sigtramp(unsigned long addr); +extern void flush_icache_all(void); +extern void flush_icache_range(unsigned long start, unsigned long end); +extern void flush_dcache_range(unsigned long start, unsigned long end); +extern void flush_dcache_page(struct page *page); + +#define PG_dcache_dirty PG_arch_1 + +#define flush_cache_dup_mm(mm) do {} while (0) +#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0 +#define flush_dcache_mmap_lock(mapping) do {} while (0) +#define flush_dcache_mmap_unlock(mapping) do {} while (0) +#define flush_cache_vmap(start, end) do {} while (0) +#define flush_cache_vunmap(start, end) do {} while (0) + +static inline void flush_icache_page(struct vm_area_struct *vma, + struct page *page) +{ + if (vma->vm_flags & VM_EXEC) { + void *v = page_address(page); + flush_icache_range((unsigned long) v, + (unsigned long) v + PAGE_SIZE); + } +} + +#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ + memcpy(dst, src, len) + +#define copy_to_user_page(vma, page, vaddr, dst, src, len) \ + do { \ + memcpy(dst, src, len); \ + if ((vma->vm_flags & VM_EXEC)) \ + flush_cache_page(vma, vaddr, page_to_pfn(page));\ + } while (0) + +#endif /* _ASM_SCORE_CACHEFLUSH_H */ |