1 /*
2 * TLB shootdown specifics for powerpc
3 *
4 * Copyright (C) 2002 Anton Blanchard, IBM Corp.
5 * Copyright (C) 2002 Paul Mackerras, IBM Corp.
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version
10 * 2 of the License, or (at your option) any later version.
11 */
12 #ifndef _ASM_POWERPC_TLB_H
13 #define _ASM_POWERPC_TLB_H
14 #ifdef __KERNEL__
15
16 #ifndef __powerpc64__
17 #include <asm/pgtable.h>
18 #endif
19 #include <asm/pgalloc.h>
20 #include <asm/tlbflush.h>
21 #ifndef __powerpc64__
22 #include <asm/page.h>
23 #include <asm/mmu.h>
24 #endif
25
26 #include <linux/pagemap.h>
27
28 #define tlb_start_vma(tlb, vma) do { } while (0)
29 #define tlb_end_vma(tlb, vma) do { } while (0)
30 #define __tlb_remove_tlb_entry __tlb_remove_tlb_entry
31
32 extern void tlb_flush(struct mmu_gather *tlb);
33
34 /* Get the generic bits... */
35 #include <asm-generic/tlb.h>
36
37 extern void flush_hash_entry(struct mm_struct *mm, pte_t *ptep,
38 unsigned long address);
39
__tlb_remove_tlb_entry(struct mmu_gather * tlb,pte_t * ptep,unsigned long address)40 static inline void __tlb_remove_tlb_entry(struct mmu_gather *tlb, pte_t *ptep,
41 unsigned long address)
42 {
43 #ifdef CONFIG_PPC_STD_MMU_32
44 if (pte_val(*ptep) & _PAGE_HASHPTE)
45 flush_hash_entry(tlb->mm, ptep, address);
46 #endif
47 }
48
49 #ifdef CONFIG_SMP
mm_is_core_local(struct mm_struct * mm)50 static inline int mm_is_core_local(struct mm_struct *mm)
51 {
52 return cpumask_subset(mm_cpumask(mm),
53 topology_sibling_cpumask(smp_processor_id()));
54 }
55
mm_is_thread_local(struct mm_struct * mm)56 static inline int mm_is_thread_local(struct mm_struct *mm)
57 {
58 return cpumask_equal(mm_cpumask(mm),
59 cpumask_of(smp_processor_id()));
60 }
61
62 #else
mm_is_core_local(struct mm_struct * mm)63 static inline int mm_is_core_local(struct mm_struct *mm)
64 {
65 return 1;
66 }
67
mm_is_thread_local(struct mm_struct * mm)68 static inline int mm_is_thread_local(struct mm_struct *mm)
69 {
70 return 1;
71 }
72 #endif
73
74 #endif /* __KERNEL__ */
75 #endif /* __ASM_POWERPC_TLB_H */
76