diff options
Diffstat (limited to 'arch/csky/abiv2/inc/abi')
| -rw-r--r-- | arch/csky/abiv2/inc/abi/cacheflush.h | 33 | ||||
| -rw-r--r-- | arch/csky/abiv2/inc/abi/entry.h | 11 |
2 files changed, 32 insertions, 12 deletions
diff --git a/arch/csky/abiv2/inc/abi/cacheflush.h b/arch/csky/abiv2/inc/abi/cacheflush.h index b8db5e0b2fe3..a565e00c3f70 100644 --- a/arch/csky/abiv2/inc/abi/cacheflush.h +++ b/arch/csky/abiv2/inc/abi/cacheflush.h @@ -13,24 +13,27 @@ #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_cache_range(vma, start, end) \ - do { \ - if (vma->vm_flags & VM_EXEC) \ - icache_inv_all(); \ - } while (0) +#define PG_dcache_clean PG_arch_1 + +#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1 +static inline void flush_dcache_page(struct page *page) +{ + if (test_bit(PG_dcache_clean, &page->flags)) + clear_bit(PG_dcache_clean, &page->flags); +} -#define flush_cache_page(vma, vmaddr, pfn) do { } while (0) -#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0 -#define flush_dcache_page(page) do { } while (0) #define flush_dcache_mmap_lock(mapping) do { } while (0) #define flush_dcache_mmap_unlock(mapping) do { } while (0) +#define flush_icache_page(vma, page) do { } while (0) #define flush_icache_range(start, end) cache_wbinv_range(start, end) -void flush_icache_page(struct vm_area_struct *vma, struct page *page); -void flush_icache_user_range(struct vm_area_struct *vma, struct page *page, - unsigned long vaddr, int len); +void flush_icache_mm_range(struct mm_struct *mm, + unsigned long start, unsigned long end); +void flush_icache_deferred(struct mm_struct *mm); #define flush_cache_vmap(start, end) do { } while (0) #define flush_cache_vunmap(start, end) do { } while (0) @@ -38,7 +41,13 @@ void flush_icache_user_range(struct vm_area_struct *vma, struct page *page, #define copy_to_user_page(vma, page, vaddr, dst, src, len) \ do { \ memcpy(dst, src, len); \ - cache_wbinv_range((unsigned long)dst, (unsigned long)dst + len); \ + if (vma->vm_flags & VM_EXEC) { \ + dcache_wb_range((unsigned long)dst, \ + (unsigned long)dst + len); \ + flush_icache_mm_range(current->mm, \ + (unsigned long)dst, \ + (unsigned long)dst + len); \ + } \ } while (0) #define copy_from_user_page(vma, page, vaddr, dst, src, len) \ memcpy(dst, src, len) diff --git a/arch/csky/abiv2/inc/abi/entry.h b/arch/csky/abiv2/inc/abi/entry.h index 9897a16b45e5..94a7a58765df 100644 --- a/arch/csky/abiv2/inc/abi/entry.h +++ b/arch/csky/abiv2/inc/abi/entry.h @@ -31,7 +31,13 @@ mfcr lr, epsr stw lr, (sp, 12) + btsti lr, 31 + bf 1f + addi lr, sp, 152 + br 2f +1: mfcr lr, usp +2: stw lr, (sp, 16) stw a0, (sp, 20) @@ -64,8 +70,10 @@ mtcr a0, epc ldw a0, (sp, 12) mtcr a0, epsr + btsti a0, 31 ldw a0, (sp, 16) mtcr a0, usp + mtcr a0, ss0 #ifdef CONFIG_CPU_HAS_HILO ldw a0, (sp, 140) @@ -86,6 +94,9 @@ addi sp, 40 ldm r16-r30, (sp) addi sp, 72 + bf 1f + mfcr sp, ss0 +1: rte .endm |