1 #ifndef _SPARC64_TLBFLUSH_H
2 #define _SPARC64_TLBFLUSH_H
3 
4 #include <linux/mm.h>
5 #include <asm/mmu_context.h>
6 
7 /* TSB flush operations. */
8 
9 #define TLB_BATCH_NR	192
10 
11 struct tlb_batch {
12 	struct mm_struct *mm;
13 	unsigned long tlb_nr;
14 	unsigned long active;
15 	unsigned long vaddrs[TLB_BATCH_NR];
16 };
17 
18 extern void flush_tsb_kernel_range(unsigned long start, unsigned long end);
19 extern void flush_tsb_user(struct tlb_batch *tb);
20 extern void flush_tsb_user_page(struct mm_struct *mm, unsigned long vaddr);
21 
22 /* TLB flush operations. */
23 
24 static inline void flush_tlb_mm(struct mm_struct *mm)
25 {
26 }
27 
28 static inline void flush_tlb_page(struct vm_area_struct *vma,
29 				  unsigned long vmaddr)
30 {
31 }
32 
33 static inline void flush_tlb_range(struct vm_area_struct *vma,
34 				   unsigned long start, unsigned long end)
35 {
36 }
37 
38 #define __HAVE_ARCH_ENTER_LAZY_MMU_MODE
39 
40 extern void flush_tlb_pending(void);
41 extern void arch_enter_lazy_mmu_mode(void);
42 extern void arch_leave_lazy_mmu_mode(void);
43 #define arch_flush_lazy_mmu_mode()      do {} while (0)
44 
45 /* Local cpu only.  */
46 extern void __flush_tlb_all(void);
47 extern void __flush_tlb_page(unsigned long context, unsigned long vaddr);
48 extern void __flush_tlb_kernel_range(unsigned long start, unsigned long end);
49 
50 #ifndef CONFIG_SMP
51 
52 #define flush_tlb_kernel_range(start,end) \
53 do {	flush_tsb_kernel_range(start,end); \
54 	__flush_tlb_kernel_range(start,end); \
55 } while (0)
56 
57 static inline void global_flush_tlb_page(struct mm_struct *mm, unsigned long vaddr)
58 {
59 	__flush_tlb_page(CTX_HWBITS(mm->context), vaddr);
60 }
61 
62 #else /* CONFIG_SMP */
63 
64 extern void smp_flush_tlb_kernel_range(unsigned long start, unsigned long end);
65 extern void smp_flush_tlb_page(struct mm_struct *mm, unsigned long vaddr);
66 
67 #define flush_tlb_kernel_range(start, end) \
68 do {	flush_tsb_kernel_range(start,end); \
69 	smp_flush_tlb_kernel_range(start, end); \
70 } while (0)
71 
72 #define global_flush_tlb_page(mm, vaddr) \
73 	smp_flush_tlb_page(mm, vaddr)
74 
75 #endif /* ! CONFIG_SMP */
76 
77 #endif /* _SPARC64_TLBFLUSH_H */
78